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US 12,718,755 B2Granted
Display panel and method for driving pixel circuit, and display device
AssigneesChengdu Boe Optoelectronics Technology Co., Ltd., Boe Technology Group Co., Ltd.
InventorsYuanjie Xu, Taofeng Xie
Life of this patent
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Abstract
Provided is a display panel. The display panel includes: a substrate, comprising a first display region and a second display region, wherein the first display region at least partially surrounds the second display region; a plurality of transparent conductive wires, disposed in the first display region and the second display region; wherein the first pixel circuit and the first light-emitting element are disposed in the first display region; a plurality of second pixels, the second pixel comprising a second pixel circuit and a second light-emitting element, wherein the second pixel circuit is disposed in the first display region, the second light-emitting element is disposed in the second display region.
Claims14
A display panel, comprising:
- a substrate, comprising a first display region and a second display region, wherein the first display region at least partially surrounds the second display region, the first display region is a non-transparent display region, and the second display region is a transparent display region;
- a plurality of transparent conductive wires, disposed in the first display region and the second display region;
- a plurality of first pixels, the first pixel being a normal pixel and comprising a first pixel circuit and a first light-emitting element, wherein the first pixel circuit and the first light-emitting element are disposed in the first display region, the first pixel circuit is coupled to the first light-emitting element, a first gate signal terminal, and a first reset power terminal, and the first pixel circuit is configured to control, in response to a first gate drive signal supplied by the first gate signal terminal, the first reset power terminal to transmit a reset power signal to the first light-emitting element;
- a plurality of second pixels, the second pixel being a full display with camera (FDC) pixel and comprising a second pixel circuit and a second light-emitting element, wherein the second pixel circuit is disposed in the first display region, the second light-emitting element is disposed in the second display region, the second pixel circuit is coupled to the second light-emitting element via the transparent conductive wire and is further coupled to a second gate signal terminal and a second reset power terminal, and the second pixel circuit is configured to control, in response to a second gate drive signal supplied by the second gate signal terminal, the second reset power terminal to transmit a reset power signal to the second light-emitting element;
- wherein the first reset power terminal and the second reset power terminal are a same reset power terminal, a reset power signal supplied by the same reset power terminal is an alternating current signal, and the first pixel circuit and the second pixel circuit transmit different reset power signals to coupled light-emitting elements in a time-sharing manner, such that a potential of the reset power signal supplied by the same reset power terminal to the first light-emitting element is less than a potential of the reset power signal supplied by the same reset power terminal to the second light-emitting element;
- and
- the first pixel circuit comprises a first reset circuit, the first reset circuit is coupled to the first gate signal terminal, the first reset power terminal, and a first electrode of the first light-emitting element, and is configured to control, in response to the first gate drive signal, the first reset power terminal to transmit the reset power signal to the first electrode of the first light-emitting element;
- the second pixel circuit comprises a second reset circuit, the second reset circuit is coupled to the second gate signal terminal, the second reset power terminal, and a first electrode of the second light-emitting element, and is configured to control, in response to the second gate drive signal, the second reset power terminal to transmit the reset power signal to the first electrode of the second light-emitting element, wherein the first electrode of the first light-emitting element and the first electrode of the second light-emitting element are coupled to a first power terminal;
- wherein the first reset circuit comprises a first reset transistor, and the second reset circuit comprises a second reset transistor, wherein the first reset transistor and the second reset transistor are controlled separately to reset the first light-emitting element and the second light-emitting element in the time-sharing manner, such that different reset power signals are transmitted to the first light-emitting element and the second light-emitting element
- wherein the first reset transistor is a P-type transistor and belongs to the normal pixel, and the second reset transistor is an N-type transistor and belongs to the FDC pixel;
- a gate electrode of the first reset transistor is coupled to the first gate signal terminal, a first electrode of the first reset transistor is coupled to the first reset power terminal, and a second electrode of the first reset transistor is coupled to the first electrode of the first light-emitting element;
- and
- a gate electrode of the second reset transistor is coupled to the second gate signal terminal, a first electrode of the second reset transistor is coupled to the second reset power terminal, and a second electrode of the second reset transistor is coupled to the first electrode of the second light-emitting element.
10 more elements
A display device, comprising:
- a photosensitive sensor, and a display panel, wherein
- the display panel comprises:
- a substrate, comprising a first display region and a second display region, wherein the first display region at least partially surrounds the second display region, the first display region is a non-transparent display region, and the second display region is a transparent display region;
- a plurality of transparent conductive wires, disposed in the first display region and the second display region;
- a plurality of first pixels, the first pixel being a normal pixel and comprising a first pixel circuit and a first light-emitting element, wherein the first pixel circuit and the first light-emitting element are disposed in the first display region, the first pixel circuit is coupled to the first light-emitting element, a first gate signal terminal, and a first reset power terminal, and the first pixel circuit is configured to control, in response to a first gate drive signal supplied by the first gate signal terminal, the first reset power terminal to transmit a reset power signal to the first light-emitting element;
- a plurality of second pixels, the second pixel being a full display with camera (FDC) pixel and comprising a second pixel circuit and a second light-emitting element, wherein the second pixel circuit is disposed in the first display region, the second light-emitting element is disposed in the second display region, the second pixel circuit is coupled to the second light-emitting element via the transparent conductive wire and is further coupled to a second gate signal terminal and a second reset power terminal, and the second pixel circuit is configured to control, in response to a second gate drive signal supplied by the second gate signal terminal, the second reset power terminal to transmit a reset power signal to the second light-emitting element;
- wherein the first reset power terminal and the second reset power terminal are a same reset power terminal, a reset power signal supplied by the same reset power terminal is an alternating current signal, and the first pixel circuit and the second pixel circuit transmit different reset power signals to coupled light-emitting elements in a time-sharing manner, such that a potential of the reset power signal supplied by the same reset power terminal to the first light-emitting element is less than a potential of the reset power signal supplied by the same reset power terminal to the second light-emitting element;
- and
- the first pixel circuit comprises a first reset circuit, the first reset circuit is coupled to the first gate signal terminal, the first reset power terminal, and a first electrode of the first light-emitting element, and is configured to control, in response to the first gate drive signal, the first reset power terminal to transmit the reset power signal to the first electrode of the first light-emitting element;
- the second pixel circuit comprises a second reset circuit, the second reset circuit is coupled to the second gate signal terminal, the second reset power terminal, and a first electrode of the second light-emitting element, and is configured to control, in response to the second gate drive signal, the second reset power terminal to transmit the reset power signal to the first electrode of the second light-emitting element, wherein the first electrode of the first light-emitting element and the first electrode of the second light-emitting element are coupled to a first power terminal;
- wherein the first reset circuit comprises a first reset transistor, and the second reset circuit comprises a second reset transistor, wherein the first reset transistor and the second reset transistor are controlled separately to reset the first light-emitting element and the second light-emitting element in the time-sharing manner, such that different reset power signals are transmitted to the first light-emitting element and the second light-emitting element;
- wherein the first reset transistor is a P-type transistor and belongs to the normal pixel, and the second reset transistor is an N-type transistor and belongs to the FDC pixel, a gate electrode of the first reset transistor is coupled to the first gate signal terminal, a first electrode of the first reset transistor is coupled to the first reset power terminal, and a second electrode of the first reset transistor is coupled to the first electrode of the first light-emitting element;
- and a gate electrode of the second reset transistor is coupled to the second gate signal terminal, a first electrode of the second reset transistor is coupled to the second reset power terminal, and a second electrode of the second reset transistor is coupled to the first electrode of the second light-emitting element;
- and
- the photosensitive sensor is disposed in the second display region of the display panel.
12 more elements
Dependencies are inferred from the claim text.