IP Library › Patent Application 11978835
Patent Application
App. No. 11/978,835

Liquid crystal display and method of manufacturing the same

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Quick Facts
Patent No.
US None
App. No.
11/978,835
Abstract

There is provided a liquid crystal display having good display characteristics and a method of driving the same. Pixel data is written in plural pixels on one gate bus line at a top end of a display area at a first point in time on a line sequential basis. At a second point in time, the writing of pixel data in pixels in an upper part of the screen is completed, and writing of pixel data in pixels in a lower part of the screen is started. At a third point in time, the writing of pixel data in the pixels in the lower part of the screen is completed. A fluorescent tube on the upper side of the screen is turned on for a period between a third point in time after the writing of pixel data in the upper part of the screen and a fourth point in time before writing of pixel data for the next frame is started and is turned off in other periods. A fluorescent tube on the lower side of the screen is turned on for a period between a fifth point in time after the writing of pixel data in the lower part of the screen in the preceding frame and a sixth point in time before writing of pixel data in the lower part of the screen is started and is turned off in other periods.

Claims (18)

1 . A liquid crystal display comprising:

a backlight unit emitting light from a backside of a liquid crystal display panel,

wherein the backlight unit has a plurality of planar light guide plates having a light entering surface and located contiguously to each other and a plurality of light sources that are provided in a vicinity of a respective light entering surface of the planar light guide plates,

wherein a quantity of light emitted by the backlight unit is controlled in accordance with a luminance data based on an image signal.

2 . A liquid crystal display according to claim 1 ,

wherein the quantity of light emitted by the backlight unit is controlled based on at least any of a maximum value, a minimum value, and an average value of the luminance data based on the image signal.

3 . A liquid crystal display according to claim 1 ,

wherein the quantity of light of each of the planar light guide plates is controlled in accordance with the image signal.

4 . A liquid crystal display according to claim 1 ,

further comprising a liquid crystal molecule perpendicularly aligned.

5 . A liquid crystal display according to claim 1 ,

wherein the planar light guide plate has a wedge-like configuration.

6 . A liquid crystal display according to claim 1 ,

wherein the plurality of the planar light guide plates are provided one over the other.

7 . A liquid crystal display according to claim 5 ,

wherein an end of the planar light guide plate is located contiguously to the light entering surface of the other planar light guide plate.

8 . A liquid crystal display according to claim 5 ,

wherein an end of the planar light guide plate is located contiguously to an end of the other planar light guide plate.