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US 12,010,894 B2Granted
Display panel and display device
AssigneeWuhan China Star Optoelectronics Technology Co., Ltd.
InventorsTengteng Shi, Zhuo Zhang, Guowei Zha
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Abstract
The present application provides a display panel and a display device. The display panel includes pixel units spaced apart from each other and at least one photosensor. From a top view, each photosensor is arranged at one side of the corresponding pixel unit, and the photosensors are configured to convert received light energy into electrical energy, so that the display panel has long-lasting power.
Claims17
A display panel, comprising:
- a plurality of pixel units spaced apart from each other, each of the pixel units comprising a plurality of sub-pixels spaced apart from each other;
- and
- a plurality of photosensors, wherein from a top view, each of the photosensors is arranged at one side of the corresponding pixel unit, and the photosensors are configured to convert received light energy from an external environment and the pixel units into electrical energy;
- wherein each of the photosensors comprises a first state and a second state;
- in the first state, each of the photosensors is configured to convert the received light energy from an external environment and the pixel units into the electrical energy;
- in the second state, each of the photosensors is configured to receive reflected light of a fingerprint to generate an electrical signal;
- and the display panel further comprises a signal reading circuit, and the signal reading circuit is configured to identify the fingerprint according to the electrical signals of the photosensors;
- wherein the display panel further comprises an electrical energy collection circuit electrically connected to at least one of the photosensors for storing the electrical energy, and the electrical energy collection circuit comprises:
- a charging chip electrically connected to the photosensor;
- and
- an energy storage device, wherein the photosensor charges the energy storage device through the charging chip.
8 more elements
A display device, comprising a display panel, wherein the display panel comprises:
- a plurality of pixel units spaced apart from each other, each of the pixel units comprising a plurality of sub-pixels spaced apart from each other;
- and
- a plurality of photosensors, wherein from a top view, each of the photosensors is arranged at one side of the corresponding pixel unit, and the photosensors are configured to convert received light energy from an external environment and the pixel units into electrical energy;
- wherein each of the photosensors comprises a first state and a second state;
- in the first state, each of the photosensors is configured to convert the received light energy from an external environment and the pixel units into the electrical energy;
- in the second state, each of the photosensors is configured to receive reflected light of a fingerprint to generate an electrical signal;
- and the display panel further comprises a signal reading circuit, and the signal reading circuit is configured to identify the fingerprint according to the electrical signals of the photosensors,
- wherein the display panel further comprises an electrical energy collection circuit electrically connected to at least one of the photosensors for storing the electrical energy, and the electrical energy collection circuit comprises:
- a charging chip electrically connected to the photosensor;
- and
- an energy storage device, wherein the photosensor charges the energy storage device through the charging chip.
8 more elements
Dependencies are inferred from the claim text.