# US 11,994,778 B2 · Color filter substrate and display panel > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,994,778 B2 - Document ID: US11994778B2 - Status: Granted - Kind: B2 - Application number: 16/969,562 - Filed: 2020-06-23 - Published: 2023-03-30 - Granted: 2024-05-28 - Earliest claimed: 2020-06-01 - Applicants: Wuhan China Star Optoelectronics Technology Co., Ltd - Inventors: Li Zhong; Guowei Zha - Web page: https://patentgrep.com/patent/US11994778B2 ## CPC - G02F 1/136222: {Colour filters incorporated in the active matrix substrate} - G02F 1/13312: {Circuits comprising photodetectors for purposes other than feedback} - G02F 1/133514: {Colour filters} - G02F 1/136286: {Wiring, e.g. gate line, drain line} - H10H 20/853: characterised by their shape - H10W 90/00: Package configurations - G02F 2201/44: Arrangements combining different electro-active layers, e.g. electrochromic, liquid crystal or electroluminescent layers - H10H 20/855: Optical field-shaping means, e.g. lenses - G02F: OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS - H10H: INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS - H10W: GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10 ## Abstract A color filter substrate and a display panel including the same are provided. The color filter substrate includes a first pixel area and a second pixel area adjacent to the first pixel area, and further includes: a plurality of micro light-emitting diode (LED) units disposed on a first surface of the base substrate in the first pixel area, wherein there are a plurality of light-transmitting areas among the micro LED units; and a color resist disposed on a second surface of the base substrate in the second pixel area, wherein the first surface and the second surface are two opposite surfaces of the base substrate. ## Claims ### Claim 1 A color filter substrate, comprising a first pixel area and a second pixel area adjacent to the first pixel area, and further comprising: a base substrate; a plurality of micro light-emitting diode (LED) units disposed on a first surface of the base substrate in the first pixel area, wherein there are a plurality of light-transmitting areas among the micro LED units; and a color resist disposed on a second surface of the base substrate only in the second pixel area, wherein the first surface and the second surface are two opposite surfaces of the base substrate. ### Claim 2 (depends on 1) The color filter substrate according to claim 1, further comprising: an encapsulation layer covering the first surface, the micro LED units, and the light-transmitting areas, and the encapsulation layer is located in the first pixel area and the second pixel area. ### Claim 3 (depends on 2) The color filter substrate according to claim 2, wherein a distance between a surface of the encapsulation layer away from the base substrate and the base substrate is greater than a distance between surfaces of the micro LED units away from the base substrate and the base substrate. ### Claim 4 (depends on 3) The color filter substrate according to claim 3, wherein a thickness of parts of the encapsulation layer corresponding to the micro LED units is 2 μm to 80 μm, and a thickness of other parts of the encapsulation layer is 3 μm to 100 μm. ### Claim 5 (depends on 2) The color filter substrate according to claim 2, wherein a light transmittance of the encapsulation layer is greater than or equal to 70%. ### Claim 6 (depends on 1) The color filter substrate according to claim 1, further comprising: a first driving circuit disposed on the first surface, and the micro LED units are disposed on and electrically connected to the first driving circuit. ### Claim 7 (depends on 6) The color filter substrate according to claim 6, wherein the first driving circuit comprises a plurality of scan lines extending in a transverse direction and a plurality of data lines extending in a longitudinal direction, two adjacent scan lines and two adjacent data lines define a sub-pixel region, and an area of an orthographic projection of each of the micro LED units on the base substrate is less than an area of an orthographic projection of each of the sub-pixel regions on the base substrate. ### Claim 8 (depends on 7) The color filter substrate according to claim 7, wherein the area of the orthographic projection of each of the micro LED units on the base substrate accounts for 10%-50% of the area of the orthographic projection of each of the sub-pixel regions on the base substrate, and the micro LED units comprise a red light-emitting unit, a green light-emitting unit, and a blue light-emitting unit. ### Claim 9 (depends on 1) The color filter substrate according to claim 1, further comprising: a flat layer covering the second surface and a surface of the color resist away from the base substrate, and a surface of the flat layer away from the base substrate is a flat surface. ### Claim 10 A display panel, comprising a color filter substrate, wherein the color filter substrate comprises a first pixel area and a second pixel area adjacent to the first pixel area, and further comprises: a base substrate; a plurality of micro light-emitting diode (LED) units disposed on a first surface of the base substrate in the first pixel area, wherein there are a plurality of light-transmitting areas among the micro LED units; and a color resist disposed on a second surface of the base substrate only in the second pixel area, wherein the first surface and the second surface are two opposite surfaces of the base substrate. ### Claim 11 A color filter substrate, comprising a first pixel area and a second pixel area adjacent to the first pixel area, and further comprising: a base substrate; a plurality of micro light-emitting diode (LED) units disposed on a first surface of the base substrate in the first pixel area, wherein there are a plurality of light-transmitting areas among the micro LED units; and a color resist disposed on a second surface of the base substrate only in the second pixel area, wherein the first surface and the second surface are two opposite surfaces of the base substrate; wherein the first pixel area is a micro LED display area, and the second pixel area is a liquid crystal display area. ### Claim 12 (depends on 11) The color filter substrate according to claim 11, further comprising: an encapsulation layer covering the first surface, the micro LED units, and the light-transmitting areas. ### Claim 13 (depends on 12) The color filter substrate according to claim 12, wherein a distance between a surface of the encapsulation layer away from the base substrate and the base substrate is greater than a distance between surfaces of the micro LED units away from the base substrate and the base substrate. ### Claim 14 (depends on 13) The color filter substrate according to claim 13, wherein a thickness of parts of the encapsulation layer corresponding to the micro LED units is 2 μm to 80 μm, and a thickness of other parts of the encapsulation layer is 3 μm to 100 μm. ### Claim 15 (depends on 12) The color filter substrate according to claim 12, wherein a light transmittance of the encapsulation layer is greater than or equal to 70%. ### Claim 16 (depends on 11) The color filter substrate according to claim 11, further comprising a first driving circuit disposed on the first surface, and the micro LED units are disposed on and electrically connected to the first driving circuit. ### Claim 17 (depends on 16) The color filter substrate according to claim 16, wherein the first driving circuit comprises a plurality of scan lines extending in a transverse direction and a plurality of data lines extending in a longitudinal direction, two adjacent scan lines and two adjacent data lines define a sub-pixel region, and an area of an orthographic projection of each of the micro LED units on the base substrate is less than an area of an orthographic projection of each of the sub-pixel regions on the base substrate. ### Claim 18 (depends on 17) The color filter substrate according to claim 17, wherein the area of the orthographic projection of each of the micro LED units on the base substrate accounts for 10%-50% of the area of the orthographic projection of each of the sub-pixel regions on the base substrate, and the micro LED units comprise a red light-emitting unit, a green light-emitting unit, and a blue light-emitting unit. ### Claim 19 (depends on 11) The color filter substrate according to claim 11, further comprising a flat layer covering the second surface and a surface of the color resist away from the base substrate, and a surface of the flat layer away from the base substrate is a flat surface.