Patent ID: 11899890
Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. A display device, wherein the display device comprises a beam emitter and a display panel;
the beam emitter is configured to emit a first beam to mark an input position on the display panel, and perform an operation to the input position which is marked by the first beam;
the display panel comprises a display screen body and a light control layer disposed on a light-emitting side of the display screen body, the light control layer comprises photosensitive devices configured to sense the first beam projected on the display panel, and the photosensitive devices are configured to output a sensing signal according to a sensing result;
wherein the display panel further comprises a touch device disposed on the light-emitting side of the display screen body, the touch device comprises a transmitting electrode and a receiving electrode spaced apart from each other, a touch capacitance is formed between the transmitting electrode and the receiving electrode, and a photosensitivity of the photosensitive device is less than a first presetting value, wherein the transmitting electrode is disposed in a same layer as the first gate electrode, and the receiving electrode is disposed in a same layer as the first source-drain electrode;
wherein the light control layer further comprises a control module and a reading module, the control module is electrically connected to the photosensitive device to output a control signal for controls turning on and turning off of the photosensitive devices, the reading module is electrically connected to the photosensitive devices to read the sensing signal output by the photosensitive device, the reading module is configured to determine a projection position of the first beam on the display panel according to the sensing signal, and the reading module is further configured to perform a corresponding operation to the projection position of the first beam;
wherein the light control layer comprises:
a first gate electrode;
a gate insulating layer covering the first gate electrode;
a first semiconductor layer disposed on the gate insulating layer;
a first source-drain electrodes electrically connected to the first semiconductor layer; and
a first passivation layer covering the first source-drain electrodes and the first semiconductor layer;
wherein the photosensitive devices comprise the first gate electrode, the first semiconductor layer, and the first source-drain electrodes, and the reading module is electrically connected to the first source-drain electrodes.