DISPLAY SUBSTRATE, DISPLAY DEVICE, AND AREA COMPENSATION METHOD

WIPO Patent Application WO/2018/032767

A1

Disclosed are a display substrate (10), a display device (1), and an area compensation method. The display substrate (10) comprises: a pixel array, a common cathode current detection circuit (14) and a data signal compensation circuit (15). The common cathode current detection circuit (14) is configured to acquire total currents flowing through each common cathode; and the data signal compensation circuit (15) is configured to receive a pixel light-emitting current of each first sub-pixel, to receive the total currents of the common cathode, and to calculate compensation data of each sun pixel according to the pixel light-emitting current of each first sub-pixel and the total currents of the common cathode. The display substrate (10) obtains compensation data of each sub-pixel by means of acquiring pixel light-emitting currents of organic light-emitting diodes in first sub-pixels which are periodically arranged and the total currents of a common cathode, and threshold voltage compensation can be realized without using sub-pixels with a compensation function. The arrangement compresses the area occupied by each sub-pixel on a panel, thereby facilitating the improvement of the physical resolution of the display substrate (10).

YANG SHENGJI (CN)
DONG XUE (CN)
LV JING (CN)
CHEN XIAOCHUAN (CN)
LIU DONGNI (CN)
WANG LEI (CN)
XIAO LI (CN)
FU JIE (CN)
LU PENGCHENG (CN)
YUE HAN (CN)

PCT/CN2017/078488

February 22, 2018

March 29, 2017

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BOE TECHNOLOGY GROUP CO LTD (CN)

G09G3/3208; G09G3/3233; G09G3/3283

CN106097962A	2016-11-09
CN105453164A	2016-03-30
CN105243994A	2016-01-13
CN104217680A	2014-12-17
US20050093791A1	2005-05-05
US20060082528A1	2006-04-20

LIU, SHEN & ASSOCIATES (CN)

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