US 12,380,838 B2
Display panel and driving method for the same, and display device
Yingteng Zhai, Shanghai (CN); and Yuan Ding, Shanghai (CN)
Assigned to Shanghai Tianma Micro-Electronics Co., Ltd., Shanghai (CN)
Filed by Shanghai Tianma Micro-Electronics Co., Ltd., Shanghai (CN)
Filed on Mar. 18, 2024, as Appl. No. 18/607,586.
Application 18/607,586 is a continuation of application No. 17/656,231, filed on Mar. 24, 2022, granted, now 11,955,058.
Claims priority of application No. 202111671753.1 (CN), filed on Dec. 31, 2021.
Prior Publication US 2024/0249670 A1, Jul. 25, 2024
Int. Cl. G09G 3/32 (2016.01)
CPC G09G 3/32 (2013.01) [G09G 2320/0233 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A display panel, comprising:
a pixel driving circuit and sub-pixels, wherein
the pixel driving circuit comprises a pulse width modulation circuit, the pulse width modulation circuit is configured to receive at least a sweep signal, provide a pulse width setting signal and control a light emitting time of at least one of the sub-pixels;
the display panel comprises N types of display areas, and the N types of display areas comprise an h-th type display area and a k-th type display area, wherein N is an integer greater than or equal to two, each of h and k is an integer greater than zero and less than or equal to N;
during a refresh cycle of the display panel, a start time of an effective time period of a sweep signal received by a pixel driving circuit in the h-th type display area is earlier than a start time of an effective time period of a sweep signal received by a pixel driving circuit in the k-th type display area; and
the display panel comprises a first display part and a second display part, and both the first display part and the second display part comprises at least one h-th type display area and at least one k-th type display area.