Driving method and driving device for display panel, as well as display device
A driving method and display panel technology, applied to static indicators, instruments, etc., can solve the problems of increased charging charge, affecting display color and image quality, and increasing brightness, so as to ensure correctness and avoid color shift or abnormal image quality Effect
Active Publication Date: 2018-03-23
HKC CORP LTD
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In this way, the positive and negative polarities of the high voltages of the subpixels in the same column will not match, that is, the number of subpixels with positive high voltages in the same column is inconsistent with the number of subpixels with negative high voltages
In this way, due to the influence of parasitic capacitance, when the number of sub-pixels with positive polarity high voltage is more than the number of sub-pixels with negative polarity high voltage in the same column, the common voltage V com The equivalent voltage compared to the original V com The increase will lead to a decrease in the actual charging charge and brightness of the sub-pixels with positive polarity and high voltage. On the contrary, it will increase the actual charging charge and brightness of the negative polarity high-voltage sub-pixels, which will affect the display color and image quality, resulting in abnormal image quality output. The problem
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[0033] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. Preferred embodiments of the invention are shown in the accompanying drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.
[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of the invention. The terminology used herein in the description of the present invention is only for the purpose of describing specific embodiments, and is not intended to limit the present invention. As used herein, the term "and / or" includes any and all combinations of one or more of th...
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The invention relates to a driving method and driving device for a display panel, as well as a display device. The driving method comprises the following steps: setting a plurality of pixel units, wherein each pixel group comprises two rows of adjacent pixel units; respectively exerting driving voltages with opposite polarities to every two rows of adjacent sub-pixels in a same row of the pixel units; exerting driving voltages with opposite polarities to corresponding sub-pixels in every two adjacent pixel groups; setting a first pixel unit and a second pixel unit in adjacent positions in thedisplay panel; respectively exerting driving voltages of different voltage grades to sub-pixels in the first pixel unit and sub-pixels in the second pixel unit. By adopting the embodiment of the invention, a Vcom voltage is prevented from influence of stray capacitance, so that the accuracy of an image signal is ensured, and phenomena of color deviation or image abnormity are avoided.
Description
technical field [0001] The present invention relates to the field of display technology, in particular to a driving method, a driving device and a display device of a display panel. Background technique [0002] In a traditional vertical alignment (Vertical Alignment, VA) liquid crystal display device, when displaying a picture, since the liquid crystal molecules maintain a certain deflection angle, the transmittance of light at different viewing angles is different, resulting in confusion when the user views the picture at different viewing angles. There is a color shift phenomenon in which the color of the screen is different. [0003] In order to improve the color shift problem, the current general practice is to divide the pixel electrode of the RGB sub-pixel in each pixel unit into two independent pixel electrodes, and apply different driving voltages to the two pixel electrodes to improve the color shift problem. In this method, due to the increase in the number of pi...
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IPC IPC(8): G09G3/36
CPCG09G3/3614G09G3/364G09G3/3696
Inventor黄北洲
OwnerHKC CORP LTD