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Patent Searching and Data


Title:
METHOD AND DEVICE FOR CONVERTING RGB IMAGE SIGNALS INTO RGBW IMAGE SIGNALS
Document Type and Number:
WIPO Patent Application WO/2019/192374
Kind Code:
A1
Abstract:
The disclosure relates to a method and a device for converting RGB image signals into RGBW image signals. The method comprises: respectively converting received RGB signals of each pixel of respective image frames into corresponding RGB luminance values (S101); performing the following steps with respect to each pixel: performing a first conversion of RGBW luminance values by determining a first conversion volume based on the corresponding RGB luminance values of the pixel, so as to obtain first RGBW luminance values of the pixel (S1021); performing a second conversion of RGBW luminance values by determining a second conversion volume based on the first RGBW luminance values of the pixel and one or more adjacent pixels, so as to obtain second RGBW luminance values of the pixel (S1022); and respectively converting the second RGBW luminance values of each pixel of each image frame into corresponding RGBW signals (103). According to the embodiments of the disclosure, the probability of subpixels being lit with a high grayscale value is further reduced while maintaining an image display effect, thereby slowing down aging of the subpixels, and prolonging the service life of the display panel.

Inventors:
HE, Min (No.9, Dize Road BDA, Beijing 6, 100176, CN)
CAO, Chun (No.9, Dize Road BDA, Beijing 6, 100176, CN)
BAO, Wenchao (No.9, Dize Road BDA, Beijing 6, 100176, CN)
Application Number:
CN2019/079987
Publication Date:
October 10, 2019
Filing Date:
March 28, 2019
Export Citation:
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Assignee:
BOE TECHNOLOGY GROUP CO., LTD. (No.10 Jiuxianqiao Rd, Chaoyang District, Beijing 5, 100015, CN)
HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD. (Xinzhan Industrial Park, Hefei, Anhui 2, 230012, CN)
International Classes:
G09G5/02; G09G5/10
Foreign References:
CN108492794A2018-09-04
CN105336288A2016-02-17
CN105702227A2016-06-22
CN105263009A2016-01-20
CN106791755A2017-05-31
CN106652937A2017-05-10
CN102779495A2012-11-14
US20160132999A12016-05-12
CN103634580A2014-03-12
Attorney, Agent or Firm:
CHINA PATENT AGENT (H.K.) LTD. (22/F, Great Eagle Centre 23 Harbour Road, Wanchai, Hong Kong, Kong, CN)
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