Liquid crystal display device
First Claim
1. A liquid crystal display device including a liquid crystal display panel and a back light, wherein a detection-use pixel which has the same constitution as respective pixels constituting a liquid crystal display part of the liquid crystal display panel is formed on a region other than the liquid crystal display part, and the liquid crystal display device further includes a light detector which detects light from the backlight through the detection-use pixel and a controller which adjusts the intensity of the light from the backlight in response to a signal from the light detector.
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Accused Products
Abstract
In a liquid crystal display device including a liquid crystal display panel and a backlight, the present invention provides a detection-use pixel having the same constitution as respective pixels constituting a liquid crystal display part in the liquid crystal display panel and being formed on a region other than the liquid crystal display part, a light detector detecting light from the backlight through the detection-use pixel, and a controller adjusting the intensity of the light from the backlight in response to a signal from the light detector to adjust the change of the characteristics and chromaticity in the liquid crystal display panel properly.
24 Citations
10 Claims
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1. A liquid crystal display device including a liquid crystal display panel and a back light, wherein a detection-use pixel which has the same constitution as respective pixels constituting a liquid crystal display part of the liquid crystal display panel is formed on a region other than the liquid crystal display part, and
the liquid crystal display device further includes a light detector which detects light from the backlight through the detection-use pixel and a controller which adjusts the intensity of the light from the backlight in response to a signal from the light detector.
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6. A liquid crystal display device including a liquid crystal display panel for color display and a back light, the back light including a red light source, a green light source and a blue light source, wherein a detection-use red pixel, a detection-use green pixel and a detection-use blue pixel which have the same constitution as respective pixels constituting a liquid crystal display part of the liquid crystal display panel are formed on a region other than the liquid crystal display part, and
the liquid crystal display device further includes a red light detector, a green light detector and a blue light detector which detect light from the backlight through the detection-use red pixel, the detection-use green pixel, the detection-use blue pixel and a controller which adjusts the intensities of the red light source, the green light source and the blue light source of the backlight in response to signals from the light detectors.
Specification