US 11,721,288 B2
Pixel circuit, pixel circuit driving method, display panel and display apparatus
Qingjun Lai, Xiamen (CN); and Yihua Zhu, Xiamen (CN)
Assigned to Xiamen Tianma Microelectronics Co., Ltd., Xiamen (CN)
Filed by Xiamen Tianma Microelectronics Co., Ltd., Xiamen (CN)
Filed on Jul. 6, 2022, as Appl. No. 17/858,492.
Claims priority of application No. 202111450630.5 (CN), filed on Nov. 30, 2021.
Prior Publication US 2022/0335897 A1, Oct. 20, 2022
Int. Cl. G09G 3/3258 (2016.01); G09G 3/3266 (2016.01)
CPC G09G 3/3258 (2013.01) [G09G 3/3266 (2013.01); G09G 2300/0852 (2013.01); G09G 2320/0233 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A pixel circuit, comprising a data writing module, a drive module, a first storage module, a second storage module, a threshold detection module, a first light emission control module, an initialization module and a light emitting module; wherein,
a first terminal of the drive module is configured to receive a signal output by a first power supply, the first light emission control module is connected between a second terminal of the drive module and a first terminal of the light emitting module, and a second terminal of the light emitting module is connected to a second power supply; the drive module is configured to provide a light mission drive signal to the light emitting module;
a first terminal of the first storage module is connected to a control terminal of the drive module, a second terminal of the first storage module is connected to a first terminal of the second storage module, and a second terminal of the second storage module is connected to the first terminal of the light emitting module;
the threshold detection module is connected between the second terminal of the first storage module and the second terminal of the drive module, and the threshold detection module is configured to control the first storage module to store a threshold voltage of the drive module;
the data writing module is connected to the second terminal of the drive module, and the data writing module is configured to transmit a data voltage to the drive module; and
the initialization module is connected to the control terminal of the drive module and the first terminal of the light emitting module, and the initialization module is configured to transmit a corresponding initialization voltage to the control terminal of the drive module and the first terminal of the light emitting module.