Display substrate of electronic ink screen and display device thereof
AssigneesBeijing Boe Optoelectronics Technology Co., Ltd., Boe Technology Group Co., Ltd.
InventorsRui Xu, Chao Tian
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Abstract
A display substrate of an electronic ink screen and a display device thereof are disclosed. The display substrate of the electronic ink screen includes: a base substrate having a display region and a non-display region; a display structure disposed in the display region of the base substrate; and a photoelectric conversion device disposed in the non-display region of the base substrate, wherein the photoelectric conversion device is connected to a driving circuit of the electronic ink screen and is configured to convert an optical signal of ambient light of the electronic ink screen to an electrical signal so as to supply power to the driving circuit.
Claims20
A display substrate of an electronic ink screen, comprising:
- a base substrate having a display region and a non-display region;
- a display structure disposed in the display region of the base substrate;
- and
- a photoelectric conversion device disposed in the non-display region of the base substrate, wherein the photoelectric conversion device is connected to a driving circuit of the electronic ink screen and is configured to convert an optical signal to an electrical signal so as to supply power to the driving circuit of the electronic ink screen,
- wherein the photoelectric conversion device comprises a plurality of photodiodes connected to the driving circuit and arranged on at least one side of the display region, wherein the plurality of photodiodes are arranged in the non-display region on three sides of the display region except a side where a bonding region is disposed in the non-display region, wherein the bonding region is a region located on a side of the display region, and
- wherein the display substrate further comprises:
- a switch unit disposed in the non-display region of the base substrate, wherein the photoelectric conversion device is connected to an electrical signal input terminal of the switch unit, an electrical signal output terminal of the switch unit is connected to an electrical signal input terminal of the driving circuit, the switch unit is configured to transmit an electrical signal generated by the photoelectric conversion device to the electrical signal input terminal of the driving circuit when being turned on, and the switch unit is a thin film transistor (TFT);
- and
- a storage battery disposed in the non-display region of the base substrate, wherein the electrical signal output terminal of the switch unit is connected to an electrical signal input terminal of the storage battery, and an electrical signal output terminal of the storage battery is connected to the electrical signal input terminal of the driving circuit.
A display device, comprising an electronic ink screen having a display substrate, and a driving circuit of the electronic ink screen, wherein the display substrate comprises:
- a base substrate having a display region and a non-display region;
- a display structure disposed in the display region of the base substrate;
- and
- a photoelectric conversion device disposed in the non-display region of the base substrate, wherein the photoelectric conversion device is connected to the driving circuit and is configured to convert an optical signal to an electrical signal so as to supply power to the driving circuit,
- wherein the photoelectric conversion device comprises a plurality of photodiodes connected to the driving circuit and arranged on at least one side of the display region, wherein the plurality of photodiodes are arranged in the non-display region on three sides of the display region except a side where a bonding region is disposed in the non-display region, wherein the bonding region is a region located on a side of the display region, and
- wherein the display substrate further comprises:
- a switch unit disposed in the non-display region of the base substrate, wherein the photoelectric conversion device is connected to an electrical signal input terminal of the switch unit, an electrical signal output terminal of the switch unit is connected to an electrical signal input terminal of the driving circuit, the switch unit is configured to transmit an electrical signal generated by the photoelectric conversion device to the electrical signal input terminal of the driving circuit when being turned on, and the switch unit is a thin film transistor (TFT);
- and
- a storage battery disposed in the non-display region of the base substrate, wherein the electrical signal output terminal of the switch unit is connected to an electrical signal input terminal of the storage battery, and an electrical signal output terminal of the storage battery is connected to the electrical signal input terminal of the driving circuit.
Dependencies are inferred from the claim text.