FLAT PANEL DISPLAY WITH BUILT-IN TOUCH SCREEN AND A METHOD OF DRIVING THE SAME
First Claim
Patent Images
1. A flat panel display (FPD) with a built-in touch screen, comprising:
- a plurality of unit pixels disposed in a display region of the FPD and arranged in pixel groups; and
photo sensors adjacent to the unit pixels of the respective pixel groups,wherein, in a scan operation mode, the plurality of unit pixels in each of the pixel groups sequentially emit light to perform a scan operation using the light emitted from the unit pixels and reflected by a scan object to be scanned to be incident on the photo sensors.
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Abstract
A flat panel display (FPD) with a photo sensor type built-in touch screen capable of performing a scan operation. The FPD with the built-in touch screen includes a plurality of unit pixels disposed in a display region of the FPD and arranged in pixel groups and photo sensors adjacent to the unit pixels of the respective pixel groups. In a scan operation mode, the plurality of unit pixels in each of the pixel groups sequentially emit light to perform a scan operation using the light emitted from the unit pixels and reflected by a scan object to be scanned to be incident on the photo sensors.
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Citations
25 Claims
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1. A flat panel display (FPD) with a built-in touch screen, comprising:
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a plurality of unit pixels disposed in a display region of the FPD and arranged in pixel groups; and photo sensors adjacent to the unit pixels of the respective pixel groups, wherein, in a scan operation mode, the plurality of unit pixels in each of the pixel groups sequentially emit light to perform a scan operation using the light emitted from the unit pixels and reflected by a scan object to be scanned to be incident on the photo sensors. - View Dependent Claims (2, 3, 4, 5, 6, 10)
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7. A method of driving a FPD with a built-in touch screen including a plurality of unit pixels disposed in a display region of the FPD and arranged in pixel groups and photo sensors adjacent to the unit pixels of the respective pixel groups each including a plurality of unit pixels, the method comprising:
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selecting a scan mode;
sequentially emitting light from selected ones of the plurality of unit pixels in each of the pixel groups in response to the scan mode; andscanning an object using light emitted from the selected ones of the plurality of unit pixels and reflected by the scanned object to be incident on the photo sensors. - View Dependent Claims (8, 9, 11)
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12. A liquid crystal display (LCD) panel including a built-in touch screen, a top substrate, a bottom substrate, a liquid crystal layer interposed between the top substrate and the bottom substrate and a backlight to illuminate the liquid crystal layer, the LCD panel comprising:
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color filters interposed between the top substrate and the liquid crystal layer; light receiving units interposed between the top substrate and the liquid crystal layer and adjacent to the color filters; unit pixels interposed between the liquid crystal layer and the bottom substrate and arranged in pixel groups; black matrices interposed between the liquid crystal layer and the bottom substrate and adjacent to the unit pixels; and photo sensors respectively disposed on a surface of the black matrices facing the liquid crystal layer; wherein the photo sensors are disposed below and aligned with the light receiving units in order to sense light. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19)
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20. A method of performing a scan operation on a scan object using an liquid crystal display (LCD) panel with a built-in touch screen including a plurality of unit pixels disposed in a display region of the LCD panel and arranged in pixel groups and photo sensors adjacent to the unit pixels of the respective pixel groups each including a plurality of unit pixels, the method comprising:
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initiating a scan operation to scan a scan object disposed on the LCD panel; sequentially emitting light from selected unit pixels from among the plurality of unit pixels during a plurality of scan periods of the scan operation; sensing light emitted from the plurality of unit pixels and reflected from the scan object to be incident on the photo sensors; and scanning the scan object using the sensed light. - View Dependent Claims (21, 22, 23, 24, 25)
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Specification