• 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:
    The present invention relates to an optical illusion correction device and method, and in the related art, when the limit of the displayed screen increases as the size of the screen exceeds the limit of the human field of view, an optically visible phenomenon causes a differently visible part, in particular, the position of the screen. When and the viewer's position is close, there was a problem that severe optical illusion occurs. Accordingly, the present invention has been made to solve the above-mentioned conventional problems, and provides an apparatus that distorts the optical illusion opposite to the optical illusion so that optical illusion (distortion on the screen) is caused by human visual characteristics. The optical illusion of a large display having a screen size larger than or larger than this person's field of view may be eliminated to show a more accurate screen to the viewer.
    公开号:KR19990047014A
    申请号:KR1019970065213
    申请日:1997-12-02
    公开日:1999-07-05
    发明作者:강석판
    申请人:구자홍；엘지전자 주식회사；
    IPC主号:
    专利说明:

    Optical illusion correction device and method
    The present invention relates to an optical illusion correction device and method, and in particular to a large display having a human visual limit or a larger screen size, an optical illusion correction device for correcting an optical illusion of a person that occurs when viewing a large object due to human visual characteristics. And to a method.
    Figure 1 is an exemplary view applied to a building in consideration of the conventional optical illusion, as shown in Figure 1a is visible to the human eye, Figure 1b is actually built to look like Figure 1a, if the optical illusion as shown in Figure 1a Without consideration, if the pillars of the same thickness are set at the same interval, the human eye will be seen as shown in Fig. 1c due to the limitation of the field of view.
    In the related art, when the screen size is larger and the limit of the displayed screen exceeds the limit of the field of view of the human being, the optical illusion phenomenon causes the part to look different from the actual one, especially when the screen position and the viewer's position are close to each other. There was a problem that occurred.
    Accordingly, an object of the present invention is to provide a device and method for preventing optical illusion by distorting the optical illusion in order to correct the optical illusion.
    1 is an exemplary diagram applied to a building in consideration of a conventional optical illusion.
    Figure 2 is a block diagram showing the configuration of the optical illusion correction device of the present invention.
    3 is an output waveform diagram of FIG. 2;
    Figure 4a is an exemplary view showing a screen to be visible to the human eye.
    FIG. 4B is an exemplary view showing a screen on which an optical signal inputted to look like FIG. 4A is optically corrected; FIG.
    Figure 5 is an illustration showing another configuration of the optical illusion correction device of the present invention.
    6 is an output waveform diagram of FIG. 5;
    7 is an operational flowchart of the present invention.
    *** Description of the symbols for the main parts of the drawings ***
    100: image signal processing unit 101: synchronous detection unit
    102: horizontal deflection portion 103, 201: horizontal correction portion
    104: horizontal deflection synthesis unit 105: horizontal deflection correction unit
    106: vertical deflection portion 107, 200: vertical correction portion
    108: vertical deflection synthesis unit 109: vertical deflection correction unit
    110: CPT 111: deflection coil
    202: distance detection unit 203: microcomputer
    The configuration of the optical illusion correction device of the present invention for achieving the above object comprises: an image signal processing unit for processing the input image signal and outputting to the CPT; A synchronization detector for detecting and outputting synchronization of the input signal; A horizontal deflection correction unit for correcting the deflection of the image by the output of the synchronization detector so as to reduce the optical illusion and outputting it to the CPT; And a vertical deflection correction unit for correcting the deflection of the image by the output of the synchronous detection unit so as to reduce the optical illusion and outputting it to the CPT.
    The horizontal deflection correction unit includes a horizontal deflection unit for moving the electron beam from left to right so as to appear on the screen; A horizontal correction unit for scanning a scan line in a predetermined pattern for optical illusion correction during horizontal scanning of the electron beam; And a horizontal deflection synthesis unit for synthesizing signals of the horizontal deflection unit and the horizontal correction unit to output an optical illusion correction signal to the CPT.
    The vertical deflection correction unit includes a vertical deflection unit for moving the electron beam from left to right so as to appear on the screen; A vertical corrector configured to scan the scan line in a predetermined pattern for optical illusion correction when the vertical scan line of the electron beam moves; And a vertical deflection synthesis unit for synthesizing signals of the vertical deflection unit and the vertical correction unit and outputting an optical illusion correction signal to the CPT.
    In the method, the distance sensing step of sensing and storing the distance between the viewer and the set; A detection value comparison step of determining an appropriate correction value by comparing the value detected in the step with a reference value; Characterized in that the step of controlling the correction unit to the value determined in the step characterized in that the compensation value execution step to be made.
    Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.
    2 is a block diagram showing the configuration of an optical illusion correction device according to the present invention, and an image signal processing unit 100 for processing an input image signal and outputting the same to a CPT; A synchronization detector 101 for detecting and outputting synchronization of the input signal; A horizontal deflection portion 102 for moving the electron beam from left to right so as to appear on the screen; A horizontal corrector 103 for scanning a scan line in a predetermined pattern for optical illusion correction during horizontal scanning of the electron beam; The horizontal deflection synthesizing unit 104 is composed of a horizontal deflection synthesizing unit 104 for synthesizing the signals of the horizontal deflection unit 102 and the horizontal correction unit 103 and outputting an optical illusion correction signal to the CPT. A horizontal deflection correction unit 105 for correcting the deflection of the image to reduce the optical illusion as compared to the general horizontal deflection so as to output to the CPT; A vertical deflection portion 106 for moving the electron beam from left to right so as to appear on the screen; A vertical corrector 107 for scanning the scan lines in a predetermined pattern for optical illusion correction when the electron beams move in the vertical scan lines; And a vertical deflection synthesis unit 108 for synthesizing the signals of the vertical deflection unit 106 and the vertical correction unit 107 and outputting optical illusion correction signals to the CPT. The vertical deflection correction unit 109 corrects the deflection of the image to reduce the optical illusion compared to the normal horizontal deflection by outputting to the CPT (110).
    When the synchronization signal is separated from the image signal Vi input from the synchronization detection unit 101 to output the vertical synchronization signal VS and the horizontal synchronization signal HS, the horizontal synchronization signal HS is connected to the horizontal deflection unit 102. The vertical synchronizing signal VS is input to the vertical correcting unit 107, the vertical synchronizing signal VS is input to the vertical deflecting unit 106 and the horizontal correcting unit 103, and the horizontal deflecting unit 102 is input to the horizontal synchronizing signal HS. The driving signal Hda for the scan line deflection is output to the CPT 110, and the horizontal correction unit 103 receives the vertical synchronization signal VS and outputs the correction signal Hdc. The horizontal deflection synthesis unit 104 synthesizes the outputs of the horizontal deflection unit 102 and the horizontal correction unit 103 to output an optical illusion correction signal HD to the deflection coil 111, and the vertical deflection unit 106. ) Outputs a vertical deflection signal Vda for moving the electron beam from left to right according to the input vertical synchronization signal VS to appear on the screen. The vertical corrector 107 outputs a correction signal Vdc for scanning the scan line in a predetermined pattern for optical illusion correction when the vertical scan line of the electron beam moves according to the input vertical synchronization signal VS, and vertically deflects the vertical correction signal 107. The combiner 108 combines the outputs of the vertical deflector 106 and the vertical corrector 107 and outputs an optical illusion correction signal VD to the deflection coil 111.
    3 is an output waveform diagram of FIG. 2, and as shown in FIG. 3A, a waveform of the vertical synchronization signal HS of the synchronization detector is shown, FIG. 3B is a waveform of a horizontal synchronization signal VS of the synchronization detector, FIG. Is a waveform of the vertical deflection signal Vda of the vertical deflection portion, FIG. 3d is a waveform of the drive signal Hda of the horizontal deflection portion, FIG. 3e is a waveform of the correction signal Vdc of the vertical correction portion, and FIG. 3c is a waveform of a correction signal HD of the vertical deflection synthesis unit due to the synthesis of 3c and 3e, FIG. 3g is a waveform of the correction signal Hdc of the horizontal correction unit, and FIG. 3h is a combination of FIGS. 3d and 3g. As a waveform of the optical illusion correction signal HD of the horizontal deflection synthesis unit, t1 represents a time of one vertical period, and t2 represents a time of a horizontal period.
    4A is an exemplary view showing a screen intended to be visible to a human eye, and FIG. 4B is an exemplary view showing an optically corrected screen of an image signal input to look like FIG. 4A, where A 1 in FIG. 4B is horizontal in FIG. 2. A 2 is a portion corrected by the correction unit 103, A 2 is a portion corrected by the vertical correction unit 107 of FIG. 2, and the sizes of A 1 and A 2 are small values depending on the human perception characteristics. to be.
    5 is an exemplary view showing another configuration of the optical illusion correction device of the present invention, and as shown therein, an image signal processor 100 for processing an input image signal and outputting the same to a CPT; A synchronization detector 101 for detecting and outputting synchronization of the input signal; A horizontal deflection portion 102 for moving the electron beam from left to right so as to appear on the screen; A horizontal correction unit 200 for varying and outputting a horizontal correction value for scanning a scan line in a predetermined pattern for optical illusion correction during horizontal scanning of the electron beam by a correction control signal; A horizontal deflection synthesis unit 104 for synthesizing the signals of the horizontal deflection unit 102 and the horizontal correction unit 200 and outputting an optical illusion correction signal to the CPT. A horizontal deflection correction unit 105 for correcting the deflection of the image to reduce the optical illusion as compared to the general horizontal deflection so as to output to the CPT; A vertical deflection portion 106 for moving the electron beam from left to right so as to appear on the screen; A vertical correction unit 201 for varying and outputting a horizontal correction value for scanning the scan line in a predetermined pattern for optical illusion correction when the vertical scan line of the electron beam moves by the correction control signal; And a vertical deflection synthesis unit 108 for synthesizing the signals of the vertical deflection unit 106 and the vertical correction unit 201 and outputting optical illusion correction signals to the CPT. A vertical deflection correction unit 109 correcting the deflection of the image to reduce the optical illusion compared to the normal horizontal deflection by outputting the deflection to the CPT 110; A distance detector 202 for detecting a distance between the TV set and the viewer; The microcomputer 203 is controlled to vary the correction signals of the vertical corrector 200 and the horizontal corrector 201 according to the detected distance.
    FIG. 6 is an output waveform diagram of FIG. 5, and FIG. 7 is an operation flowchart of the present invention. As shown therein, a distance sensing unit 202 is provided to sense a distance between a viewer and a TV set. When the control signal for controlling the output from the vertical corrector 200 and the horizontal corrector 201 is input from the microcomputer 203 according to the distance detected by the distance from FIG. By making it smaller and increasing the deflection of the correction output when it is near, the optical illusion correction is made more effectively.
    As described above, the optical illusion correction apparatus and method of the present invention eliminate optical illusion in a large display having a visual field limit of a person or a screen size larger than that of optical illusion (distortion on the screen) phenomenon due to human visual characteristics. The effect is to show a more accurate picture to the viewer.
    权利要求:
    Claims (7)
    [1" claim-type="Currently amended] An image signal processing unit for processing the input image signal and outputting the processed image signal to the CPT; A synchronization detector for detecting and outputting synchronization of the input signal; A horizontal deflection correction unit for correcting the deflection of the image by the output of the synchronization detector so as to reduce the optical illusion and outputting it to the CPT; And a vertical deflection correction unit configured to correct the deflection of the image by the output of the synchronous detection unit so as to reduce the optical illusion so as to reduce the optical illusion and output it to the CPT.
    [2" claim-type="Currently amended] The apparatus of claim 1, wherein the horizontal deflection correction unit comprises: a horizontal deflection unit for moving the electron beam from left to right to appear on a screen; A horizontal correction unit for scanning a scan line in a predetermined pattern for optical illusion correction during horizontal scanning of the electron beam; And a horizontal deflection synthesizing unit for synthesizing signals of the horizontal deflection unit and the horizontal correction unit and outputting an optical illusion correction signal to the CPT.
    [3" claim-type="Currently amended] The apparatus of claim 1, wherein the vertical deflection correcting unit comprises: a vertical deflection unit for moving the electron beam from left to right to appear on a screen; A vertical corrector configured to scan the scan line in a predetermined pattern for optical illusion correction when the vertical scan line of the electron beam moves; And a vertical deflection synthesizing unit for synthesizing signals of the vertical deflection unit and the vertical correcting unit and outputting an optical illusion correction signal to the CPT.
    [4" claim-type="Currently amended] An image signal processing unit for processing the input image signal and outputting the processed image signal to the CPT; A synchronization detector for detecting and outputting synchronization of the input signal; A horizontal deflection correction unit for correcting the deflection of the image by the output of the synchronization detector so as to reduce the optical illusion and outputting it to the CPT; A vertical deflection correcting unit correcting the deflection of the image by the output of the synchronization detecting unit to reduce the optical illusion so as to reduce the optical illusion and outputting it to the CPT; A distance sensing unit for sensing a distance between the TV set and the viewer; An optical illusion compensator, characterized in that it comprises a microcomputer for controlling the size of the correction signal of each correction unit according to the detected distance.
    [5" claim-type="Currently amended] The apparatus of claim 4, wherein the horizontal deflection correction unit comprises: a horizontal deflection unit configured to move the electron beam from left to right and appear on the screen; A horizontal correction unit for varying and outputting a horizontal correction value according to a correction control signal of a microcomputer; And a horizontal deflection synthesizing unit for synthesizing signals of the horizontal deflection unit and the horizontal correction unit and outputting an optical illusion correction signal to the CPT.
    [6" claim-type="Currently amended] The apparatus of claim 4, wherein the vertical deflection correcting unit comprises: a vertical deflection unit for moving the electron beam from left to right to appear on the screen; A vertical corrector for varying and outputting a vertical correction value according to a correction control signal of a microcomputer for optical illusion correction when the electron beam is moved in the vertical scan line; And a vertical deflection synthesizing unit for synthesizing signals of the vertical deflection unit and the vertical correcting unit and outputting an optical illusion correction signal to the CPT.
    [7" claim-type="Currently amended] A distance sensing step of sensing and storing a distance between the viewer and the set; A detection value comparison step of determining an appropriate correction value by comparing the value detected in the step with a reference value; Optical illuminant correction method comprising the step of performing a corresponding correction value to perform a correction by controlling the correction unit to the value determined in the step.
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    同族专利:
    公开号 | 公开日
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    1997-12-02|Application filed by 구자홍, 엘지전자 주식회사
    1997-12-02|Priority to KR1019970065213A
    1999-07-05|Publication of KR19990047014A
    优先权:
    申请号 | 申请日 | 专利标题
    KR1019970065213A|KR19990047014A|1997-12-02|1997-12-02|Optical illusion correction device and method|
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