• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A vehicle lamp (1) has an outer lamp housing (4) including a lamp housing (2) having an opening and a cover (3) attached to the lamp housing (2) and closing the opening, and a unit lamp lamp (6) disposed within the outer lamp housing (4) and including a light source (50) having a plurality of light emitting flat bodies (7, 7). An outer peripheral portion (9a) of each of the light emitting flat bodies (7, 7) is a non-emitting light region (Y), and a portion within the non-emitting light region. (Y) of each of the light emitting flat bodies (7, 7) is a light emitting region (X). At least a portion of the non-emitting light region (Y) is formed so as to be transparent. The transparent portion of the light emitting region (Y) of the light emitting flat bodies (7, 7) and an outer end portion of the light emitting region (X) of the other light emitting flat bodies ( 7, 7) are superposed one above the other in the direction of the thickness of the light-emitting flat bodies (7, 7).
    公开号:FR3019261A1
    申请号:FR1552782
    申请日:2015-04-01
    公开日:2015-10-02
    发明作者:Haruhiko Iyoda；Masaya Shido；Toru Ito；Yukihiro Onoda
    申请人:Koito Manufacturing Co Ltd；
    IPC主号:
    专利说明:

    [0001] BACKGROUND TECHNICAL FIELD The present invention relates to a vehicle lamp in which a plurality of flat light emitting bodies are used as a light source. [Prior Art] Patent 1: Japanese Patent No. 2011-150887.
    [0002] ASSOCIATED TECHNIQUE In a vehicle lamp, as a light source, a plurality of flat light emitting bodies are arranged inside an outer lamp box which is configured by a cover and a lamp housing. For example, light emitting flat bodies have an organic (electroluminescent) EL layer that is self-luminous. In a vehicle lamp using the light-emitting flat bodies thus configured as a light source, a large flat light-emitting body is often used to secure a large light-emitting region. However, in the case of using the large flat light-emitting body, due to the probability of occurrence of defects in a panel, the efficiency decreases or it is difficult to guarantee the uniformity of the brightness as the light emission area increases. There is therefore a possibility of increasing the irregularity of the brightness. A vehicle lamp using the light emitting flat body as a light source is thus known, in which a plurality of light emitting flat bodies are respectively arranged side by side in predetermined positions (see for example Patent 1). . By arranging a plurality of light emitting flat bodies with a small light emission area side-by-side in this manner, the efficiency is improved and the uniformity of brightness is improved. It is furthermore possible to guarantee a large light emission area as a complete light source.
    [0003] However, the light emitting flat bodies require a sealing layer (protective layer) to seal a light emitting layer (light emitting region) and an outer peripheral portion of the sealing layer is located on the outside 5 of the outer periphery of the light emitting layer. In addition, auxiliary electrodes are provided in an outer peripheral portion of the flat light emitting bodies. The auxiliary electrodes are adapted to deliver energy to the light emitting layer. As a result, the outer peripheral portion of the light emitting flat bodies becomes a non-emitting region from which no light is emitted. Accordingly, when a plurality of light emitting flat bodies are arranged side by side as in the vehicle lamp disclosed in Patent 1, the non-emitting light region is located between the plurality of light emitting regions. flat bodies emitting light. Dark portions are thus formed in the light emission range (illumination range) by the importance of the presence of the non-emitting light region and thus, the light irregularity occurs or occurs a decrease in visibility due to the formation of dark portions. In particular, when a plurality of flat light emitting bodies are arranged side by side, it is desirable to ensure similar visibility in the case where light is emitted by a single large panel. SUMMARY Embodiments of the invention provide a vehicle lamp that can decrease the generation of light irregularities by suppressing the occurrence of dark portions in the light emission range. A vehicle lamp according to an exemplary embodiment comprises: a lamp housing having an aperture at least on one side and a cover attached to the lamp housing and closing the aperture, forming an extinguishing lamp box; and a lamp unit disposed within the outer lamp housing and including a light source having a plurality of light emitting flat bodies; wherein an outer peripheral portion of each of the light emitting flat bodies is a non-emitting light region, and a portion lying within the non-emitting light region of each of the light emitting flat bodies is a light-emitting region, at least a portion of the non-emitting region is formed to be transparent, and the transparent portion of the non-emitting region of the light emitting flat bodies and a portion the outer end of the light-emitting region of the other light-emitting flat bodies are superposed one above the other in the direction of the thickness of the light emitting flat bodies. In this way, the light emitted by the light-emitting region superimposed on the transparent, non-emitting light region is radiated outward through the superimposed, non-emitting light region. The plurality of flat light emitting bodies can be held in a frame. In this way, it is unnecessary to maintain each of the plurality of flat light-emitting bodies in a separate manner. At least a portion of an outer peripheral portion of the frame may be folded relative to its other portions and provided as a holding portion configured to maintain the outer end portion of the plurality of light emitting flat bodies, and cabling may be arranged within the holding portion and adapted to deliver energy to the plurality of light emitting flat bodies. In this way, the interior space of the holding portion is used as a wiring arrangement space. The plurality of light emitting flat bodies may be sealed with a sealing film. In this manner, the light-emitting flat bodies are sealed by the sealing film in a state where their portions are superimposed one above the other. The vehicle lamp may further comprise: a printed wiring flexible board on which are arranged the plurality of flat light emitting bodies; wherein a wiring circuit of the printed wiring flexible board is arranged to be turned towards the plurality of flat light emitting bodies, an anisotropic conductive film is bonded to the wiring circuit, and energy is delivered to the plurality of light emitting flat bodies through the anisotropic conductive film from the wiring circuit. In this manner, the printed wiring flexible board has a function of holding the light emitting flat bodies and a power supply function to the light emitting flat bodies. According to the present invention, the light emitted by the light emitting region superimposed on the transparent non-emitting light region is radiated outward through the superimposed region 20 emitting no light. As a result, the appearance of dark portions in the light emission range can be prevented, so that the generation of light irregularity can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS The invention will be well understood and its advantages will be better understood on reading the detailed description which follows. The description refers to the following drawings, which are given by way of example. Fig. 1 is a schematic sectional view showing an exemplary embodiment of a vehicle lamp according to the present invention, with Fig. 2 to Fig. 8. Fig. 2 is an exploded perspective view of a lamp unit. Fig. 3 is an enlarged sectional view showing light emitting flat bodies whose ends are superimposed one above the other. Figure 4 is a schematic view of the rear of the light emitting flat body. Figure 5 is a perspective view showing a separate frame. Fig. 6 is an exploded perspective view showing a lamp unit according to a first modified example. Fig. 7 is an exploded perspective view showing a lamp unit according to a second modified example. Fig. 8 is a conceptual view showing an exemplary arrangement of a plurality of flat light emitting bodies. DETAILED DESCRIPTION Exemplary embodiments for making a vehicle lamp according to the present invention will be described hereinafter with reference to the accompanying drawings. On the other hand, the present invention can be applied to various vehicle lamps. For example, the present invention can be widely applied to various vehicle lamps such as a headlamp, a taillight, a clearance light, a direction light, a brake light, a daytime running light, a light turn, a hazard warning light, a sidelight, a reversing light, a fog lamp or a combination thereof. In the following description, the front-to-back direction, the up-down direction and the left-right direction are described with reference to the direction of light emission forward. The front-to-back direction, the up-down direction and the left-right direction, which are described below, are defined for convenience of explanation. The practice of the present invention is not limited to these directions. A vehicle lamp 1 is respectively fixed and arranged at both the left and right ends of a vehicle body. The vehicle lamp 1 comprises a lamp housing 2 having a cavity open towards the rear and a cover 3 closing the opening of the lamp housing 2 (see FIG. 1). An outer lamp box 4 is configured by the lamp housing 2 and the cover 3. The interior space of the lamp outer box 4 is shaped as a lamp chamber 5. 30192 6 1 6 The lamp housing 2 is provided with screw insertion holes 2a, 2a, ... penetrating in the front-to-back direction. The screw insertion holes 2a, 2a, ... are separated from each other in the front-to-back direction and the left-right direction. A lamp unit 6 is disposed in the lamp chamber 5 (see Fig. 1 and Fig. 2). The lamp unit 6 comprises light-emitting flat bodies 7, 7 and a frame 8 for holding the light-emitting flat bodies 7, 7. A light source 50 is configured by the light-emitting flat bodies 7, 7. For example, light emitting flat bodies 7, 7 may use a light emitting flat body having an organic (electroluminescent) EL layer which is self-luminous. The number of flat light emitting bodies 7 is here not limited to two but may be three or more.
    [0004] The light emitting flat bodies 7, 7 are held in the frame 8 in a state where portions thereof are superimposed on each other, for example, in a state where their ends in the left-right direction are superimposed one above the other in the direction of the thickness (see Figure 3).
    [0005] For example, each of the light emitting flat bodies 7, 7 comprises a base layer 9 and a light emitting layer 10. The base layer 9 is a glass substrate having a horizontally long rectangular shape. The light-emitting layer 10 is deposited on a different portion of an outer peripheral portion 9a of the base layer 9. On the outside of the light-emitting flat body 7, a region where the light-emitting layer 10 is present is called light emitting region X which emits light, and an outer peripheral portion 9a which is a portion external to the light emitting layer 10 is called a non emitting region of light Y which emits no light ( see Figure 4). Auxiliary electrodes 11, 11, ... are formed at portions of the non-Y emitting region including the outer peripheral portion 9a of the base layer 9. For example, the auxiliary electrodes 11, 11,. are formed at both the upper and lower ends of the base layer 9. The auxiliary electrode 11 on the positive side is formed at one end of both the upper and lower ends. The auxiliary electrodes 11 on the positive side and the negative side are separated in the left-right direction at the other end of the two upper and lower ends. As a result, the auxiliary electrodes 11 are not formed at both the left and right ends 9b, 9b of the base layer 9. The two left and right ends 9b, 9b of the base layer 9 are formed as portions transparent. The light-emitting layer 10 is sealed by a sealing layer 12 formed by a transparent resin or glass (see FIG. 3). The sealing layer 12 is adapted to cover a front surface of the light emitting layer 10 and an outer peripheral surface of the light emitting layer 10. The sealing layer 12 has an outer peripheral portion 12a located at the level of the light emitting layer. region not emitting Y light.
    [0006] Respective ends in the left-right direction of the light-emitting flat bodies 7, 7 are superimposed one above the other in the direction of the thickness. That is, a transparent portion (an end portion in the left-right direction) of the non-Y-emitting region of a light emitting flat body 7 is superimposed in the forward direction back to an outer end portion of the light emitting region X of the other light emitting flat body 7. The superimposed portions are bonded, for example, by a double-sided transparent ribbon 13 or a transparent adhesive (not shown ).
    [0007] Since the superimposed portions of the light emitting flat bodies 7, 7 are bonded by the double-sided tape 13 or the adhesive, deformation or separation of the superimposed portions of the light-emitting flat bodies 7, 7 is prevented. Further, since the separation of the superimposed portions of the light emitting flat bodies 7, 7 is prevented, the superimposed portions are barely visible and therefore, all the light emitting flat bodies 7, 7 can be easily seen as being formed. from one and the same panel. As a result, it is possible to improve the design of the vehicle lamp 1.
    [0008] The light emitted by an end portion 10a of the light emitting layer 10 of the light emitting flat body 7 located on the back side in the superimposed state is transmitted through the double-sided tape 13 or adhesive. The light is then transmitted through the superimposed portion of the non-Y emitting region of the light emitting flat body 7 located at the front side in the superimposed state, so that light is radiated forward. In a state where the ends of the light-emitting flat bodies 7, 7 are superimposed on one another, the light-emitting flat bodies 7, 7 are covered by a transparent cover 14 from the front (see FIG. and Figure 2). The transparent cover 14 is made of resin or glass. The frame 8 comprises a base surface portion 15, side surface portions 16, 16, ..., and folded surface portions 17, 17, .... The base surface portion 15 has a rectangular shape horizontally long turned in the front-rear direction. The side surface portions 16, 16, ... protrude forwardly from an outer peripheral edge of the base surface portion 15. The folded surface portions 17, 17, ... protrude in a direction of approaching (inwardly) from a front end edge of the side surface portions 16, 16, .... The frame 8 is provided with 20 holding portions 18, 18, ... having a cross section in The holding portions 18, 18, ... are formed by an outer peripheral portion of the base surface portion 15, the lateral surface portions 16, 16, ... and the folded surface portions 17. , 17, .... The frame 8 is provided with coupling protrusions 19, 19, ... which respectively project rearwardly from four corners of the base surface portion 15. Open screw holes 19a rearwards are formed in the coupling protrusions 19. The flat light emitting bodies 7, 7 s have held together with the transparent cover 14 by the holding portions 18, 18, ... of the frame 8 in a state where the light emitting flat bodies are covered by the transparent cover 14 having the horizontally long rectangular shape from the before. At the same time, an outer peripheral portion of the light source 50 and an outer peripheral portion of the transparent cover 14 are held by the folded surface portions 17, 17, ... and an outer peripheral portion of the surface portion. base 15 is in a sandwiched state between them from the front and the back. In addition, the flat light emitting bodies 7, 7 (light source 50) and the transparent cover 14 are held in the frame 8. In this manner, the lamp unit 6 is configured.
    [0009] Since the light-emitting flat bodies 7, 7 are covered by the transparent cover 14 from the front, the superimposed portions of the light-emitting flat bodies 7, 7 are not noticeable and as a result, the entire body can be easily seen. light emitting plates 7, 7 as being formed of a single panel. As a result, it is possible to improve the design of the vehicle lamp 1. Mounting screws 100, 100, ... are respectively inserted into the screw insertion holes 2a, 2a, ... of the housing. 2 and screwed into the screw holes 19a, 19a, ... of the frame 8, so that the lamp unit 6 is mounted on the lamp housing 2. In this way, in the vehicle lamp 1, the coupling protrusions 19, 19, ... are provided in the frame 8. Accordingly, it is possible to easily mount the lamp unit 6 on the lamp housing 2. As described above, the flat bodies Light emitters 7, 7 whose ends are superimposed one above the other are held in the frame 8. Accordingly, it is unnecessary to keep each of the light-emitting flat bodies 7, 7 separately. As a result, it is possible to obtain the reduction of the number of pieces and the simplification of the structure. Further, since the flat light-emitting bodies 7, 7 whose ends are superimposed on each other are held in the frame 8, the two ends of the superimposed portions of the light emitting flat bodies 7, 7 are held by the holding portions 18, 18 .... As a result, a deformation or separation of the superimposed portions of the light-emitting flat bodies 7, 7 is prevented, so that the portions superimposed by the ribbon can be omitted. double sided 13 or adhesive. As a result, the bonding of the superimposed portions by the double-sided tape 13 or the adhesive can be omitted, so that it is possible to simplify the process of mounting the lamp unit 6. Moreover, since the tape double sided 13 or the adhesive is not necessary, the cost of material is reduced. As a result, it is possible to reduce the manufacturing costs of the vehicle lamp 1. On the other hand, the holes of the chassis 8 may be formed in different portions of the outer peripheral portion of the base surface portion 15, so that the base surface portion 15 may be in the form of a frame. When the base surface portion 15 is in the form of a chassis, the color assigned to the chassis 8 is hardly visible from the outside of the vehicle lamp 1 through the light-emitting flat bodies 7, 7. it is possible to improve the design of the vehicle lamp 1. In addition, the frame 8 may have a curved shape. In the case where the frame 8 has a curved shape, the flat light-emitting bodies 7, 7, as a whole, have a curved shape so as to follow the shape of the frame 8. As a result, the light emitted by the emitter layers 10, 10 can be radiated in a desired direction and the lamp unit 6 can be arranged according to the arrangement space of the lamp chamber 5. As a result, it is possible to improve the degree of freedom Design.
    [0010] In addition, in the vehicle lamp 1, cabling (not shown) for supplying energy to the auxiliary electrodes 11, 11, ... light emitting flat bodies 7, 7 may be arranged inside the portions. 18, 18, ... of the frame 8. The wiring is connected to a supply circuit (control circuit, not shown). Since the wirings are arranged inside the holding portions 18, 18, ..., the inner space of the holding portions 18, 18, ... is effectively used as a wiring arrangement space. As a result, a stable holding state of the light emitting flat bodies 7, 7 can be obtained, so that the dimensions of the vehicle lamp 1 can be reduced in relation to the size reduction of the lamp unit 6. In the above description, an exemplary frame 8 has been illustrated, where the holding portions 18, 18, ... are formed in the up-down direction and the left-right direction. However, for example, as shown in FIG. 5, it is possible to use a frame 8A in which the number of holding portions 18 is smaller than that of the frame 8, replacing the frame 8. In the frame 8A, for example, the holding portions 18, 18 may be provided only in the up-down direction. In the frame 8A, the coupling protrusions 19, 19, ... protrude laterally from each of the two left and right side edges of the base surface portion 15 and are spaced from each other in the up-down direction. The coupling protrusions 19, 19, ... can here protrude rearwardly from the base surface portion 15.
    [0011] Since the frame 8A is provided with the holding portions 18, 18 only in the up-down direction, the structure of the frame 8A is simple. Accordingly, when using the frame 8A, it is possible to reduce the manufacturing cost of the vehicle lamp 1. In addition, when using the frame 8A, the transparent cover 14 and the flat bodies emitting light 7, 7 can be mounted on the frame 8A by sliding them in the left-right direction. Accordingly, it is possible to simplify the process of mounting the lamp unit 6. In the lamp chamber 5, a frame-shaped extension 20 is arranged between the cover 3 and the lamp unit 6. The extension 20 causes masking of the holding portions 18, 18, ... of the frame 8, so that it is difficult to see the holding portions 18, 18, ... of the outside of the vehicle lamp 1. A modified example of the lamp unit 6 is described below (see Fig. 6 and Fig. 7). A lamp unit 6A according to a first modified example is first described (see Fig. 6). The lamp unit 6A described below is different from the lamp unit 6 described above only in that another element is respectively used in place of the frame and the transparent cover. As a result, only the parts which differ from those of the lamp unit 6 will be described in detail. The other parts similar to those of the lamp unit 6 are represented by the same reference numbers and their description is omitted. The lamp unit 6A is configured in such a way that the light emitting flat bodies 7, 7 are sealed by a first sealing film 21 and a second sealing film 22, which are used respectively to the place of the transparent cover 14 and the frame 8. The first sealing film 21 located on the front side is formed so as to be transparent and has a rectangular shape 5 horizontally long. The second sealing film 22 has a sealing surface portion 23 and coupling protrusions 24, 24, ... projecting laterally respectively from the sealing surface portion 23. The coupling protrusions 24, 24, ... are separated in the up-down direction. The sealing surface portion 23 has the same shape and dimensions as the first sealing film 21. The coupling protrusions 24, 24, ... are provided with screw fixing holes 24a, 24a, ... penetrating through these in the front-to-back direction. The light emitting flat bodies 7, 7 are held sealed by the first sealing film 21 and the sealing surface portion 23 of the second sealing film 22 from the front and the back. The light emitting flat bodies 7, 7 are sealed by the first sealing film 21 and the sealing surface portion 23 of the second sealing film 22, so that the lamp unit 6A is configured.
    [0012] The mounting screws 100, 100, ... are respectively inserted into the screw fixing holes 24a, 24a, ... coupling protrusions 24, 24, ... in the second sealing film 22, so that that the lamp unit 6A is mounted on the lamp housing 2. In this way, in the vehicle lamp 1, the coupling protrusions 24, 24, ... are provided in the second sealing film 22. In Accordingly, it is possible to easily mount the lamp unit 6A on the lamp housing 2. As described above, the light emitting flat bodies 7, 7 whose ends are superimposed on top of one another are maintained. by being sealed by the first sealing film 21 and the second sealing film 22. Accordingly, it is unnecessary to maintain each of the light emitting flat bodies 7, 7 in a separate manner. As a result, it is possible to obtain the reduction of the number of parts and the simplification of the structure.
    [0013] Further, since the flat light-emitting bodies 7, 7 whose ends are superimposed on one another are held by the first sealing film 21 and the second sealing film 22, a deformation or separation of the superimposed portions of the flat light emitting bodies 7, 7 is prevented. As a result, the bonding of the superimposed portions by the double-sided tape 13 or adhesive may be omitted. As a result, the bonding by the double-sided tape 13 or the adhesive can be omitted, so that it is possible to simplify the mounting process of the lamp unit 6A. In addition, since the double-sided tape 13 or adhesive is not needed, the cost of material is reduced. As a result, it is possible to reduce the manufacturing cost of the vehicle lamp 1. On the other hand, in the lamp unit 6A, wiring (not shown) which is connected to the auxiliary electrodes 11, 11, .. light-emitting flat bodies 7, 7 are drawn from the side of the second sealing film 22 and connected to the light emitting flat bodies 7, 7. The cabling is connected to a supply circuit (control circuit; represent). A lamp unit 6B according to a second modified example is then described (see Fig. 7).
    [0014] On the other hand, the lamp unit 6B described below is different from the lamp unit 6 described above only in that another element is used in place of the frame and the configuration of the transparent cover is different. As a result, only the parts which differ from those of the lamp unit 6 will be described in detail. The other parts similar to those of the lamp unit 6 are represented by the same reference numbers and their description is omitted. The lamp unit 6B is configured such that the light emitting flat bodies 7, 7 are sealed by a transparent cover 14B used in place of the transparent cover 14 and a printed wiring flexible board 25 used in place of the frame 8. The transparent cover 14B has a horizontally long rectangular shape. A microlens array 14a is formed at a different portion of the outer peripheral portion of the transparent cover 14B. Since the microlens array 14a is formed in the transparent cover 14B, the amount of light that is emitted by the light emitting layers 10, light-emitting flat bodies 7, 7 and transmitted forward is increased. As a result, it is possible to improve the light extraction efficiency. In the case where the configuration is used to improve the light extraction efficiency, in place of the microlens array 14a, a lens step having other configurations and the like may be formed in the transparent cover. In addition, the microlens array 14 or lens step having other configurations and the like can also be formed in the transparent cover 14 of the lamp unit 6 described above. The flexible printed wiring board 25 has a holding surface portion 26 and coupling protrusions 27, 27, .... A wiring circuit (not shown) is formed on the front surface of the holding surface portion 26 The coupling protuberances 27, 27, ... project respectively laterally from the holding surface portion 26. The coupling protrusions 27, 27, ... are separated in the up-down direction. The holding surface portion 26 has the same shape and dimensions as the transparent cover 14B. The coupling protrusions 27, 27, ... are provided with screw fixing holes 27a, 27a, ... penetrating therethrough in the front-to-back direction. Anisotropic conductive films 28, 28, ... are connected to the wiring circuit of the holding surface portion 26. The wiring circuit of the holding surface portion 26 is connected to a power supply circuit (control circuit ) via a connection line (not shown). In a state where the light-emitting flat bodies 7, 7 are covered by the transparent cover 14B from the front, an outer peripheral portion of the transparent cover 14B is bonded to the holding surface portion 26, for example by adhesion or the like . In this manner, the light emitting flat bodies 7, 7 are arranged and held in the printed wiring flexible board 25. Since the light emitting flat bodies 7, 7 are held in the printed wiring flexible board 25, lamp unit 6B is configured. In a state where the light emitting flat bodies 7, 7 are held in the printed flexible wiring board 25, the anisotropic conductive films 28, 28, ... are respectively connected to the auxiliary electrodes 11, 11 ... light emitting plates 7, 7. Energy is supplied to the auxiliary electrodes 11, 11, ... light emitting flat bodies 7, 7 via the wiring circuit of the printed wiring flexible board 25 and anisotropic conductive films 28, 28, ....
    [0015] The mounting screws 100, 100, ... are respectively inserted into the screw fixing holes 27a, 27a, ... coupling protrusions 27, 27, ... in the printed wiring flexible board 25, so that that the lamp unit 6B is mounted on the lamp housing 2. In this way, in the vehicle lamp 1, the coupling protrusions 27, 27, ... are provided in the printed wiring flexible card 25. In FIG. Accordingly, it is possible to easily mount the lamp unit 6B on the lamp housing 2. As described above, the light emitting flat bodies 7, 7 whose ends are superimposed on top of one another are maintained. in the printed wiring flexible board 25 and energy is delivered to the light emitting flat bodies 7, 7 through the anisotropic conductive films 28, 28, ... from the wiring circuit. In this way, the printed wiring flexible board 25 has a function of holding the light emitting flat bodies 7, 7 and a function of supplying energy to the light emitting flat bodies 7, 7. As a result, it is possible to to obtain the simplification of the structure by means of the reduction of the number of pieces. Further, since the light emitting flat bodies 7, 7 are maintained in a state covered by the transparent cover 14B, deformation or separation of the superimposed portions of the light emitting flat bodies 7, 7 is prevented, so that may fail to bind the superimposed portions by the double-sided tape 13 or the adhesive. As a result, the bonding of the superimposed portions by the double-sided tape 13 or the adhesive can be omitted, so that it is possible to simplify the mounting process of the lamp unit 6B. In addition, since the double-sided tape 13 or adhesive is not needed, the cost of material is reduced. As a result, it is possible to reduce the manufacturing cost of the vehicle lamp 1. On the other hand, since energy is delivered to the light emitting flat bodies 7, 7 using the anisotropic conductive films 28, 28, ... it is not necessary to perform a high temperature welding job. As a result, problems such as reducing the function of the light emitting flat bodies 7, 7 due to the influence of heat do not occur. Consequently, it is possible to guarantee a correct function of the flat light emitting bodies 7, 7.
    [0016] Further, since the printed wiring flexible board 25 is used as a holding element for the light emitting flat bodies 7, 7, the light emitting flat bodies 7, 7 as a whole have a curved shape so as to follow 25. As a result, the light emitted by the light emitting layers 10, 10 can be radiated to a desired direction and the lamp unit 6B can be arranged according to the space of the light emitter. 5. As a result, it is possible to improve the degree of freedom of design. On the other hand, in the lamp unit 6B, as a holding element for the light emitting flat bodies 7, 7, a rigid rigid circuit board formed of bakelite, epoxy glass or alumina or the like can to be used, replacing the printed wiring flexible board 25. As described above, in the vehicle lamp 1, the transparent portion of the non-emitting Y light region of a flat light emitting body 7 and the outer end portion of the light emitting region X of the other light emitting flat body 7 are superimposed one above the other in the thickness direction of the light emitting flat bodies 7, 7.
    [0017] As a result, the light emitted by the X-light emitting region superimposed on the transparent non-Y emitting region is radiated through the non-emitting Y superimposed region. As a result, the occurrence of dark portions in the light emission range can be suppressed, so that the generation of light irregularity can be reduced. Furthermore, since the occurrence of dark portions in the light emission range is prevented, it is possible to ensure visibility in a manner similar to the case where light is emitted by a single large panel, in a state where a plurality of flat light emitting bodies 7, 7, ... are arranged side by side.
    [0018] On the other hand, in the above description, an example has been illustrated where portions of two light emitting flat bodies 7, 7 are superimposed one above the other. However, for example, in the case where portions of three light-emitting flat bodies 7, 7, ... or more are superimposed on one another, it is desirable that the flat light-emitting bodies 7, 7 , ... adjacent are arranged to be arranged alternately in the front and back order, as shown in Figure 8. When the adjacent light emitting bodies 7, 7, ... are arranged to be arranged alternatively in the forward and backward order in this manner, the overall thickness of the light emitting flat bodies 7, 7, ... can be as thin as possible. As a result, it is possible to reduce the thickness of the vehicle lamp 1. In addition, in the above description, an example has been illustrated where the flat light-emitting bodies 7, 7, ... are arranged side by side. side by side in the left-right direction. However, the light emitting flat bodies 7, 7, ... may be arranged side by side in the up-down direction in a state where portions thereof are superimposed one above the other. On the other hand, the flat light-emitting bodies 7, 7, ... may be arranged side by side in the up-down direction and in the left-right direction in a state where portions thereof are superimposed on each other. one above the other.
    权利要求:
    Claims (5)
    [0001]
    REVENDICATIONS1. Vehicle lamp (1) characterized in that it comprises: a lamp housing (2) having an opening at least on one side and a cover (3) fixed to the lamp housing (2) and closing the opening, forming an outer lamp box (4); and a lamp unit (6) disposed within the outer lamp housing (4) and including a light source (50) having a plurality of light emitting flat bodies (7, 7); Wherein an outer peripheral portion (9a) of each of the light emitting flat bodies (7, 7) is a non-emitting light region (Y), and a portion located within the emitting region no light (Y) of each of the light emitting flat bodies (7, 7) is a light emitting region (X), at least a portion of the non-emitting light region (Y) is formed to be transparent, and the transparent portion of the light emitting region (Y) of the light emitting flat bodies (7, 7) and an outer end portion of the light emitting region (X) of the other bodies light emitting plates (7, 7) are superposed one above the other in the direction of the thickness of the light-emitting flat bodies (7, 7).
    [0002]
    Vehicle lamp (1) according to claim 1, wherein the plurality of flat light emitting bodies (7, 7) are held in a frame (8). 25
    [0003]
    The vehicle lamp (1) according to claim 1 or 2, wherein at least a portion of an outer peripheral portion (9a) of the frame is folded relative to its other portions and provided as a holding portion configured to maintaining the outer end portion of the plurality of light-emitting flat bodies (7, 7), and cabling is arranged within the holding portion and adapted to deliver energy to the plurality of bodies light emitting plates (7, 7).
    [0004]
    The vehicle lamp (1) according to any one of claims 1 to 3, wherein the plurality of light emitting flat bodies (7, 7) are sealed by a sealing film.
    [0005]
    The vehicle lamp (1) according to claim 1, further comprising: a printed wiring flexible board (25) on which are arranged the plurality of light emitting flat bodies (7, 7); wherein a wiring circuit of the printed wiring flexible board is arranged to face the plurality of light emitting flat bodies (7, 7), an anisotropic conductive film is bonded to the wiring circuit, and the energy is supplied to the plurality of light emitting flat bodies (7, 7) through the anisotropic conductive film from the wiring circuit.
    类似技术:
    公开号 | 公开日 | 专利标题
    FR3019261A1|2015-10-02|LAMP FOR VEHICLE
    FR3025284A1|2016-03-04|LAMP FOR VEHICLE
    FR3021730B1|2019-07-26|LIGHTING UNIT AND LAMP FOR VEHICLE
    FR3010172A1|2015-03-06|LAMP FOR VEHICLE
    FR3018393A1|2015-09-11|LIGHT EMITTING DEVICE AND LAMP UNIT
    FR3031705A1|2016-07-22|BLINKER
    FR3038965A1|2017-01-20|VEHICLE LAMP
    EP2542828B1|2018-09-05|Signaling device for a motor including a surface light source
    EP2536973B1|2016-06-01|Optical system for a motor vehicle
    EP2996142A1|2016-03-16|Light source holder with integrated connector
    JP6758949B2|2020-09-23|Light emitting device
    EP2995850A1|2016-03-16|Multifunctional light module with segmented oled diode
    EP2691800A2|2014-02-05|Lighting module having improved lighting uniformity
    FR2881274A1|2006-07-28|METHOD FOR FASTENING A THREE DIMENSIONAL OPTICAL PART OF A FLEXIBLE ELECTRONIC SUPPORT SUPPORTING AT LEAST ONE ELECTROLUMINESCENT DIODE
    FR3009365B1|2019-07-12|VEHICLE LAMP
    US10393939B2|2019-08-27|Display apparatus
    US10241257B2|2019-03-26|Display apparatus
    EP3299219A1|2018-03-28|Light device comprising an oled light source
    EP3098501A1|2016-11-30|Lighting device for a motor vehicle
    EP1685434A1|2006-08-02|Luminous panel and the use thereof for video display screens
    EP3364100A1|2018-08-22|Compact light module
    KR101487613B1|2015-01-29|Lighting device
    FR3021731A1|2015-12-04|
    FR3065055B1|2019-06-14|LUMINOUS DEVICE FOR A VEHICLE COMPRISING A FLEXIBLE OLED ASSOCIATED WITH ELECTROMECHANICAL MEANS FOR DEFORMATION
    JP6630530B2|2020-01-15|Structural member with surface emitting panel
    同族专利:
    公开号 | 公开日
    CN104976563A|2015-10-14|
    JP2015198011A|2015-11-09|
    CN104976563B|2017-09-22|
    JP6382555B2|2018-08-29|
    US20150274064A1|2015-10-01|
    FR3019261B1|2020-01-31|
    DE102015205896A1|2015-10-01|
    US9688182B2|2017-06-27|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    JP4592172B2|2000-10-26|2010-12-01|スタンレー電気株式会社|Vehicle lighting|
    JP4569463B2|2005-12-20|2010-10-27|パナソニック電工株式会社|Mounting device for organic EL lighting panel|
    JP5543228B2|2010-01-21|2014-07-09|株式会社小糸製作所|Vehicular lamp provided with surface light emitter|
    FR2956468B1|2010-02-15|2015-07-10|Valeo Vision|OPTICAL DEVICE, IN PARTICULAR FOR MOTOR VEHICLE|
    FR2967235B1|2010-11-05|2014-10-31|Valeo Vision|LIGHTING OR SIGNALING DEVICE FOR A MOTOR VEHICLE HAVING A LIGHT GUIDE RAIL.|
    JP5666942B2|2011-02-24|2015-02-12|株式会社小糸製作所|Vehicle lighting|
    JP5979218B2|2012-02-29|2016-08-24|コニカミノルタ株式会社|Luminescent panel and manufacturing method thereof|
    JP2014017204A|2012-07-11|2014-01-30|Panasonic Corp|Organic electroluminescent element and planar light-emitting unit|
    JP5895762B2|2012-07-27|2016-03-30|コニカミノルタ株式会社|Organic electroluminescent device and organic electroluminescent panel sealing method|
    DE102012107644A1|2012-08-21|2014-03-27|Hella Kgaa Hueck & Co.|Lighting unit for a motor vehicle|
    JP2014183008A|2013-03-21|2014-09-29|Koito Mfg Co Ltd|Lighting fixture for vehicle|DE102015117487A1|2015-10-14|2017-04-20|Osram Oled Gmbh|Optoelectronic module and method for producing an optoelectronic module|
    JP6695165B2|2016-02-23|2020-05-20|株式会社小糸製作所|Vehicle lighting unit|
    DE102016111242A1|2016-06-20|2017-12-21|Hella Kgaa Hueck & Co.|Signal light for vehicles|
    EP3336424B1|2016-08-08|2020-05-13|Kaneka Corporation|Building material with integrated light-emitting device|
    WO2019013010A1|2017-07-13|2019-01-17|パイオニア株式会社|Light emitting device|
    JP2019160398A|2018-03-07|2019-09-19|株式会社小糸製作所|Vehicle lamp fitting|
    法律状态:
    2016-03-11| PLFP| Fee payment|Year of fee payment: 2 |
    2017-02-27| PLFP| Fee payment|Year of fee payment: 3 |
    2018-02-28| PLFP| Fee payment|Year of fee payment: 4 |
    2018-08-03| PLSC| Search report ready|Effective date: 20180803 |
    2019-02-27| PLFP| Fee payment|Year of fee payment: 5 |
    2020-03-04| PLFP| Fee payment|Year of fee payment: 6 |
    2021-03-09| PLFP| Fee payment|Year of fee payment: 7 |
    优先权:
    申请号 | 申请日 | 专利标题
    JP2014075511|2014-04-01|
    JP2014075511A|JP6382555B2|2014-04-01|2014-04-01|Vehicle lamp|
    [返回顶部]