Liquid crystal display device and fabricating method and driving method thereof
First Claim
1. A liquid crystal display device comprising:
- a plurality of photo sensing devices formed on a TFT array substrate that sense an external light irradiated into a liquid crystal display panel;
an integrated circuit portion that reads out signals corresponding to an illumination distribution by the external light in accordance with a sensing result by each of the photo sensing devices;
a backlight having a plurality of light sources that independently supply light to the liquid crystal display panel in accordance with the illumination distribution; and
a backlight driver that drives the backlight.
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Accused Products
Abstract
Disclosed is a liquid crystal display device, a fabricating method, and a driving method thereof that includes at least one integrated photosensor that senses external light illumination on the liquid crystal display device. A sensing signal from the at least one photosensors are converted into a digital signal that is stored to represent an external illumination distribution. The liquid crystal display device includes a backlight that has a plurality of light sources that may be independently driven. A controller generates a control signal that independently drives the light sources in a manner corresponding to the illumination distribution. In doing so, areas of the liquid crystal display device may be provided with a greater amount of light from a corresponding light source so that externally illuminated areas of the liquid crystal display device do not suffer from reduced contrast.
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Citations
23 Claims
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1. A liquid crystal display device comprising:
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a plurality of photo sensing devices formed on a TFT array substrate that sense an external light irradiated into a liquid crystal display panel; an integrated circuit portion that reads out signals corresponding to an illumination distribution by the external light in accordance with a sensing result by each of the photo sensing devices; a backlight having a plurality of light sources that independently supply light to the liquid crystal display panel in accordance with the illumination distribution; and a backlight driver that drives the backlight. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method of driving a liquid crystal display device, comprising:
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sensing an external light irradiated onto a liquid crystal display panel using a photo sensing device provided within the liquid crystal display device; measuring an illumination distribution corresponding to the external light in accordance with a result of the sensing by the photo sensing device; and adjusting a light amount supplied to the liquid crystal display panel in accordance with the illumination distribution. - View Dependent Claims (15, 16)
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17. A method of fabricating a liquid crystal display device, comprising:
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forming a liquid crystal display panel that includes a plurality of photo sensing devices that sense an external light; preparing an integrated circuit portion that reads out a signal corresponding to illumination distribution, wherein the illumination distribution corresponds to a sensing result by the photo sensing devices; and preparing a plurality light sources that independently supply light to the liquid crystal display panel in accordance with the illumination distribution, wherein forming the liquid crystal display panel includes forming a thin film transistor array substrate including the photo sensing device, forming a color filter array substrate, and joining the thin film transistor array substrate with the color filter array substrate. - View Dependent Claims (18, 19, 20, 21, 22, 23)
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Specification