Method for driving liquid crystal display panel
A technology of a liquid crystal display panel and a driving method, which is applied to static indicators, instruments, etc., can solve the problems of reducing brightness and increasing power consumption, and achieves the effect of improving the phenomenon of side-view color shift.
Active Publication Date: 2009-02-18
NANJING CEC PANDA LCD TECH
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Problems solved by technology
The CC type includes A pixel, B pixel, and the capacitor used for coupling between A and B pixels. The CC type has a defect: at high gray levels, the overall brightness will be reduced due to the difference in brightness between A and B pixels.
The TT type turns on two TFTs at different times, and then applies different data signal voltages, so the frequency needs to be doubled and the power consumption increases
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[0025] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0026] image 3 It is a schematic diagram of a single pixel structure in the present invention.
[0027] In the present invention, the liquid crystal display panel includes a plurality of pixels distributed in a matrix, image 3 A schematic diagram of a single pixel structure in the present invention is given. A single complete pixel 1 is formed at the intersection of the data line Dm and the scan line. The two scan lines GnB are driven by thin film transistors Tr1 and Tr2, and a single complete pixel 1 also includes a horizontal storage capacitor common line (not shown) parallel to the scan line and on the same layer, which forms a storage capacitor with the pixel electrode. , where m and n are natural numbers.
[0028] The driving method of the liquid crystal display panel of the present invention provides scanning signals to the first scanning lin...
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The invention discloses a drive method of LCD panel, the LCD panel comprises a plurality of pixels distributed in rectangle, each pixel is divided into a first pixel and a second pixel which are driven by a first scanning line and a second scanning line. The invention is characterized in that the drive method comprises following steps: providing scanning signals for the first scanning line and the second scanning line at the same time; the scanning signal comprises a gating electric potential Vgh, a closedown electric potential Vgl and a top rake electric potential; the top rake electric potential V1 on the first scanning line is not equal to the top rake electric potential V2 on the second scanning line. The drive method of LCD panel provided by the invention can effectively improve phenomenon of side view color deviation under vertical distributing mode.
Description
technical field [0001] The invention relates to a driving method of a liquid crystal display panel, in particular to a driving method of a liquid crystal display panel for improving side-view color shift in a vertical alignment mode. Background technique [0002] Liquid crystal display devices have become the mainstream display devices, the development of liquid crystal televisions is advancing by leaps and bounds, and liquid crystal displays have also made great progress. [0003] In the wide viewing angle technology of liquid crystal displays, vertical alignment (Vertically Aligned, VA) is widely used. However, when viewing a VA-mode liquid crystal display panel from the side, color shift occurs. [0004] In order to improve this phenomenon, Fujitsu proposed to divide a sub-pixel into two parts (A pixel and B pixel), and obtain different transmittances by applying different voltages to the A pixel and B pixel to solve the problem of color shift by mixing colors. method. ...
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IPC IPC(8): G09G3/36G02F1/133
Inventor 王志军
Owner NANJING CEC PANDA LCD TECH