Title:
SUBPIXEL CIRCUIT, PIXEL CIRCUIT, AND DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/103172
Kind Code:
A1
Abstract:
A subpixel circuit, a pixel circuit, and a display device. The subpixel circuit comprises a primary pixel unit (1) and a secondary pixel unit (2) respectively connected to a scan line (200) and a data line (100). The primary pixel unit (1) is further connected to a power line (300). The primary pixel unit (1) comprises a first OLED (OLED1) and a first capacitor (C1). The secondary pixel unit (2) comprises a second OLED (OLED2) and a second capacitor (C2). The first capacitor (C1) is charged by means of the data line (100) and the power line (300), and the second capacitor (C2) is charged by means of the data line (100), such that a brightness level of the first OLED (OLED1) is higher than a brightness level of the second OLED (OLED2). The subpixel circuit enables a single OLED pixel to emit light of multiple brightness levels, and can increase display contrast and a charging rate of the pixel.
Inventors:
CAI ZHENFEI (CN)
Application Number:
PCT/CN2019/125056
Publication Date:
June 03, 2021
Filing Date:
December 13, 2019
Export Citation:
Assignee:
SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECH CO LTD (CN)
International Classes:
G09G3/3225
Foreign References:
| CN104575381A | 2015-04-29 | |||
| CN107808604A | 2018-03-16 | |||
| CN103489401A | 2014-01-01 | |||
| CN1702721A | 2005-11-30 | |||
| CN103000132A | 2013-03-27 | |||
| US20140354621A1 | 2014-12-04 |
Attorney, Agent or Firm:
PURPLEVINE INTELLECTUAL PROPERTY (SHENZHEN) CO., LTD (CN)
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