Liquid crystal display device
First Claim
1. A liquid crystal display device including a liquid crystal display panel, a back light, and a controller wherein the liquid crystal display panel includesa test pixel for detection which has the same constitution as respective pixels constituting a liquid crystal display part of the liquid crystal display panel,the test pixel being formed on a region other than the liquid crystal display part, anda mirror arranged on an observation-side surface of the liquid crystal display panel, the mirror reflecting light from the backlight through the test pixel, andwherein the controller adjusts the intensity of the light from the backlight in response to a signal from a 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.
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Citations
10 Claims
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1. A liquid crystal display device including a liquid crystal display panel, a back light, and a controller wherein the liquid crystal display panel includes
a test pixel for detection which has the same constitution as respective pixels constituting a liquid crystal display part of the liquid crystal display panel, the test pixel being formed on a region other than the liquid crystal display part, and a mirror arranged on an observation-side surface of the liquid crystal display panel, the mirror reflecting light from the backlight through the test pixel, and wherein the controller adjusts the intensity of the light from the backlight in response to a signal from a light detector.
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6. A liquid crystal display device including a liquid crystal display panel for color display, a back light which has a red light source, a green light source, a blue light source, and a controller, wherein
the liquid crystal display panel includes test pixels comprising test red pixel for detection, a test green pixel for detection and a test blue pixel for detection 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, a mirror arranged on an observation-side surface of the liquid crystal display panel, the mirror reflecting light from the backlight through the test red pixel, the test green pixel, and the test blue pixel, and a light detector which detects light from the mirror, wherein the controller 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