US 12,444,363 B2
Pixel circuit and display module
Yuan Yao, Hefei (CN); Chung-Chun Lee, Hefei (CN); Yiming Xiao, Hefei (CN); Qing Bai, Hefei (CN); Liusong Ni, Hefei (CN); and Mingchen Li, Hefei (CN)
Assigned to Hefei Visionox Technology Co., Ltd., Hefei (CN); and Kunshan Go-Visionox Opto Electronics Co., Ltd, Kunshan (CN)
Filed by Hefei Visionox Technology Co., Ltd., Anhui (CN); and KunShan Go-Visionox Opto Electronics Co., Ltd, Jiangsu (CN)
Filed on May 10, 2024, as Appl. No. 18/660,506.
Claims priority of application No. 202311324257.8 (CN), filed on Oct. 12, 2023.
Prior Publication US 2025/0124865 A1, Apr. 17, 2025
Int. Cl. G09G 3/3233 (2016.01)
CPC G09G 3/3233 (2013.01) [G09G 2300/043 (2013.01); G09G 2300/0842 (2013.01); G09G 2310/061 (2013.01); G09G 2310/08 (2013.01); G09G 2320/0233 (2013.01); G09G 2320/0626 (2013.01); G09G 2330/021 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A pixel circuit, comprising:
a driving module electrically connected to a first electrode of a light-emitting element and configured to drive the light-emitting element to emit light; and
a shunt branch, wherein a first terminal of the shunt branch is electrically connected to the first electrode of the light-emitting element, a second terminal of the shunt branch is electrically connected to a first reference voltage signal line, and the shunt branch is configured to transmit part of a driving current provided by the driving module to the first reference voltage signal line, the shunt branch comprises a shunt switch module, a control terminal of the shunt switch module is electrically connected to a target control signal line, a first terminal of the shunt switch module is electrically connected to the first electrode of the light-emitting element, a second terminal of the shunt switch module is electrically connected to the first reference voltage signal line, and the shunt switch module is configured to be turned on or turned off under the control of the target control signal line; and
wherein the shunt branch further comprises a voltage dividing module, the voltage dividing module is electrically connected between the first terminal of the shunt switch module and the first electrode of the light-emitting element, or the voltage dividing module is electrically connected between the second terminal of the shunt switch module and the first reference voltage signal line;
wherein the voltage dividing module comprises a resistor;
impedance of the voltage dividing module is less than or equal to impedance of the light-emitting element;
the first reference voltage signal line is electrically connected to a first reference voltage signal output terminal of a power module; and
shunt branches of at least two pixel circuits are electrically connected to the first reference voltage signal output terminal through a same first reference voltage signal line.