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US 11,961,853 B2Granted
Color filter substrate and manufacturing method thereof
AssigneeShenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
InventorHaijun Wang
Life of this patent
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Abstract
A color filter substrate and a manufacturing method thereof are provided. A plurality of grating structures, a sensor unit and a switch unit are integrated on the color filter substrate. As such, in addition to an original light-filtering function, the color filter substrate is given functions of polarizing light rays and sensing light rays.
Claims17
A color filter substrate, comprising a base substrate, the color filter substrate further comprising:
- a plurality of color filters, disposed on the base substrate;
- a plurality of grating structures, disposed at a side of the base substrate, configured to generate polarized light;
- a sensor unit, disposed at a side of the base substrate, configured to generate an electric current signal after irradiated by a laser;
- and
- a switch unit, disposed at a side of the base substrate as the same as the sensor unit and connected to the sensor unit, configured to receive the electric current signal and allow the electric current signal to pass through the switch unit in response to the switch unit being in a switched-on state,
- wherein the both the sensor unit and the switch unit are thin-film transistors, and the plurality of grating structures, the sensor unit and the switch unit are integrated on the color filter substrate, wherein the sensor unit at least comprises a first gate electrode, a first source electrode and a first drain electrode, each of the grating structures comprises a first grating structure and a second grating structure, the second grating structure stacks on a corresponding first grating structure, a material of the first grating structure and a material of the first gate electrode are a same material and belong to a same film layer, and a material of the second grating structure and a material of the first source electrode or the first drain electrode are a same material and belong to a same film layer.
3 more elements
A color filter substrate, comprising a base substrate, the color filter substrate further comprising:
- a plurality of grating structures, disposed at a side of the base substrate, configured to generate polarized light;
- a sensor unit, disposed at a side of the base substrate, configured to generate an electric current signal after irradiated by a laser;
- and
- a switch unit, disposed at a side of the base substrate as the same as the sensor unit and connected to the sensor unit, configured to receive the electric current signal and allow the electric current signal to pass through the switch unit in response to the switch unit being in a switched-on state,
- wherein the plurality of grating structures, the sensor unit and the switch unit are disposed on the color filter substrates
- wherein the sensor unit is a thin-film transistor and at least comprises a first gate electrode, a first source electrode and a first drain electrode, each of the grating structures comprises a first grating structure and a second grating structure, the second grating structure stacks on a corresponding first grating structure, a material of the first grating structure and a material of the first gate electrode are a same material and belong to a same film layer, and a material of the second grating structure and a material of the first source electrode or the first drain electrode are a same material and belong to a same film layer.
3 more elements
A method for manufacturing a color filter substrate, the method comprising the steps of:
- forming a plurality of grating structures, a sensor unit and a switch unit at a side of a base substrate,
- wherein the sensor unit is configured to generate an electric current signal after irradiated by a laser, the switch unit is connected to the sensor unit and is configured to receive the electric current signal and allow the electric current signal to pass through the switch unit in response to the switch unit being in a switched-on state, and the plurality of grating structures are configured to generate polarized light;
- and
- wherein the plurality of grating structures, the sensor unit and the switch unit are disposed on the color filter substrate,
- wherein the sensor unit is a thin-film transistor and at least comprises a first gate electrode, a first source electrode and a first drain electrode, each of the grating structures comprises a first grating structure and a second grating structure, the second grating structure stacks on a corresponding first grating structure, a material of the first grating structure and a material of the first gate electrode are a same material and belong to a same film layer, and a material of the second grating structure and a material of the first source electrode or the first drain electrode are a same material and belong to a same film layer.
2 more elements
Dependencies are inferred from the claim text.