Title:
PIXEL DRIVING CIRCUIT AND DRIVING METHOD THEREFOR, AND DISPLAY PANEL AND DISPLAY APPARATUS
Document Type and Number:
WIPO Patent Application WO/2024/016350
Kind Code:
A1
Abstract:
A pixel driving circuit and a driving method therefor, and a display panel and a display apparatus. The pixel driving circuit is used for driving a light-emitting unit (L) to emit light, and the pixel driving circuit comprises a driving circuit (1), a first light emission control circuit (21) and a first digital circuit (41). The driving circuit (1) is connected to a first power source end (VDD), a first node (N1) and the light-emitting unit (L), and is used for providing, according to the voltage of the first node (N1), a driving current for the light-emitting unit (L) by using the first power source end (VDD); the first light emission control circuit (21) is connected to a first digital signal end (DS1), the first light emission control circuit (21) and the driving circuit (1) are connected in series between the first power source end (VDD) and the light-emitting unit (L), and the first light emission control circuit (21) is used for turning on or off a current path between the first power source end (VDD) and the light-emitting unit (L) in response to a first digital signal of the first digital signal end (DS1); and the first digital circuit (41) comprises a first signal conversion circuit (51), and the first signal conversion circuit (51) is connected to a first analog signal end (BL1) and the first digital signal end (DS1) and is used for inputting the first digital signal into the first digital signal end (DS1) according to a first analog signal of the first analog signal end (BL1). The pixel driving circuit has relatively low power consumption and relatively good stability.
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Inventors:
WANG CAN (CN)
QU YAN (CN)
ZHANG CAN (CN)
XUAN MINGHUA (CN)
CHEN XIAOCHUAN (CN)
CONG NING (CN)
NIU JINFEI (CN)
ZHANG JINGJING (CN)
QU YAN (CN)
ZHANG CAN (CN)
XUAN MINGHUA (CN)
CHEN XIAOCHUAN (CN)
CONG NING (CN)
NIU JINFEI (CN)
ZHANG JINGJING (CN)
Application Number:
PCT/CN2022/107495
Publication Date:
January 25, 2024
Filing Date:
July 22, 2022
Export Citation:
Assignee:
BOE TECHNOLOGY GROUP CO LTD (CN)
International Classes:
G09G3/32
Foreign References:
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| CN1543637A | 2004-11-03 | |||
| CN110728946A | 2020-01-24 | |||
| CN111462679A | 2020-07-28 | |||
| CN110796985A | 2020-02-14 | |||
| CN113692612A | 2021-11-23 | |||
| CN110021264A | 2019-07-16 | |||
| CN111583857A | 2020-08-25 | |||
| CN114203103A | 2022-03-18 | |||
| CN114512087A | 2022-05-17 | |||
| US10395589B1 | 2019-08-27 | |||
| US20070018078A1 | 2007-01-25 |
Attorney, Agent or Firm:
BEIJING INTELLEGAL INTELLECTUAL PROPERTY AGENT LTD. (CN)
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