US 12,327,510 B2
Display panel and method for driving the same, and display apparatus
Yuhao Zhong, Xiamen (CN); Min Huang, Xiamen (CN); Jiancai Huang, Xiamen (CN); and Ming Fang, Xiamen (CN)
Assigned to Xiamen Tianma Optoelectronics Co., Ltd., Xiamen (CN); and Xiamen Tianma Micro-Electronics Co., Ltd., Xiamen (CN)
Filed by Xiamen Tianma Optoelectronics Co., Ltd., Xiamen (CN); and Xiamen Tianma Micro-Electronics Co., Ltd., Xiamen (CN)
Filed on Dec. 20, 2023, as Appl. No. 18/390,236.
Claims priority of application No. 202311308937.0 (CN), filed on Oct. 10, 2023.
Prior Publication US 2024/0135857 A1, Apr. 25, 2024
Int. Cl. G09G 3/20 (2006.01); G11C 19/28 (2006.01)
CPC G09G 3/2092 (2013.01) [G09G 2310/0267 (2013.01); G09G 2310/0286 (2013.01); G09G 2310/08 (2013.01); G09G 2330/021 (2013.01); G11C 19/28 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A display panel, comprising:
a display region and a non-display region;
pixel circuits located in the display region; and
a shift register circuit located in the non-display region and comprising a plurality of cascaded shift units, wherein each shift unit comprises a first output circuit, a control circuit and a first node, the first output circuit is configured to output an active scanning level or an inactive scanning level in response to an enabling level at the first node, and the control circuit is configured to output a non-enabling level to the first node,
wherein the display panel has a first mode,
in the first mode, the display region comprises a first sub-region and a second sub-region that are adjacent in a first direction, data refreshing of the first sub-region is performed at a first frequency, data refreshing of the second sub-region is performed at a second frequency, the first frequency is greater than the second frequency, the shift register circuit comprises a first unit group and a second unit group, the first unit group is electrically connected to the pixel circuits in the first sub-region, the second unit group is electrically connected to the pixel circuits in the second sub-region, and the shift unit in the second unit group that is cascaded subsequent to a last shift unit in the first unit group is a first shift unit,
in the first mode, in some frames, the first unit group and the second unit group sequentially output the active scanning level, and in some frames, the control circuit in the first shift unit supplies the non-enabling level to the first node at least after the first unit group outputs the active scanning level, and
wherein a duration of one frame is t,

OG Complex Work Unit Math
where f is a reference frequency greater than or equal to the first frequency, and the reference frequency is an integer-multiple of each of the first frequency and the second frequency.