Title:
GRAYSCALE DRIVING TABLE GENERATION DEVICE AND METHOD, DISPLAY PANEL, AND DRIVING METHOD
Document Type and Number:
WIPO Patent Application WO/2020/147619
Kind Code:
A1
Abstract:
A grayscale driving table generation device (7) comprises a sampling circuit (1), a processing circuit (2), an adjustment circuit (3), and a recording circuit (4). The sampling circuit (1) is used in respective grayscale modes to collect, in a display panel, a first voltage (ΔV1) between a common electrode (53) and a driving electrode (51) of positive-frame sub-pixels, and a second voltage (ΔV2) between the common electrode (53) and a driving electrode (52) of negative-frame sub-pixels. The processing circuit (2) is connected to the sampling circuit (1), and is used to generate a trigger signal when a voltage difference (ΔV3) between the first voltage (ΔV1) and the second voltage (ΔV2) is greater than a voltage threshold. The adjustment circuit (3) is connected to the processing circuit (2), and is used to adjust, in response to the trigger signal, driving grayscale levels of the positive-frame sub-pixels and/or the negative-frame sub-pixels, such that the voltage difference (ΔV3) is less than the voltage threshold. The recording circuit (4) is used to generate an adjusted grayscale driving table according to driving grayscale levels of the positive-frame sub-pixels and the negative-frame sub-pixel in each grayscale mode. The adjusted grayscale driving table can be used to resolve the issue of afterimages and uneven display of the display panel.
More Like This:
Inventors:
LI TAO (CN)
ZHOU LIUGANG (CN)
DAI KE (CN)
HAN YIZHAN (CN)
SUN JIANWEI (CN)
XIONG YULONG (CN)
QU ZHENLIN (CN)
ZHOU LIUGANG (CN)
DAI KE (CN)
HAN YIZHAN (CN)
SUN JIANWEI (CN)
XIONG YULONG (CN)
QU ZHENLIN (CN)
Application Number:
PCT/CN2020/070754
Publication Date:
July 23, 2020
Filing Date:
January 07, 2020
Export Citation:
Assignee:
BOE TECHNOLOGY GROUP CO LTD (CN)
HEFEI BOE DISPLAY TECH CO LTD (CN)
HEFEI BOE DISPLAY TECH CO LTD (CN)
International Classes:
G09G3/36
Foreign References:
| CN109461423A | 2019-03-12 | |||
| CN101615382A | 2009-12-30 | |||
| CN105529011A | 2016-04-27 | |||
| CN108847194A | 2018-11-20 | |||
| CN107274843A | 2017-10-20 | |||
| JP2008197349A | 2008-08-28 |
Attorney, Agent or Firm:
BEIJING INTELLEGAL INTELLECTUAL PROPERTY AGENT LTD. (CN)
Download PDF:
Previous Patent: SMART RICE COOKER
Next Patent: INFORMATION PROCESSING METHOD, SERVER, DEVICE-TO-DEVICE SYSTEM AND STORAGE MEDIUM
Next Patent: INFORMATION PROCESSING METHOD, SERVER, DEVICE-TO-DEVICE SYSTEM AND STORAGE MEDIUM