# US 2024/0201534 A1 · Liquid crystal display panel > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2024/0201534 A1 - Document ID: US20240201534A1 - Status: Published application - Kind: A1 - Application number: 17/905,174 - Filed: 2022-08-15 - Published: 2024-06-20 - Earliest claimed: 2022-08-05 - Assignees: Wuhan China Star Optoelectronics Technology Co., Ltd. - Applicants: Wuhan China Star Optoelectronics Technology Co., Ltd. - Inventors: Kun Ma - Web page: https://patentgrep.com/patent/US20240201534A1 ## CPC - G02F 1/133526: {Lenses, e.g. microlenses or Fresnel lenses} - G02F 1/1335: Structural association of cells with optical devices, e.g. polarisers or reflectors - G02F 1/133514: {Colour filters} - G02F 1/133528: {Polarisers} - G02F 1/133607: {the light controlling member including light directing or refracting elements, e.g. prisms or 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 ## Abstract The present invention relates to a liquid crystal display panel. A first polarizer of the present invention has a plurality of microlens structures disposed on a side of a polarizing film adjacent to a backlight module, and the plurality of microlens structures are configured to converge light emitted by the backlight module, so that more light is converged upward and enters the polarizing film. Therefore, a light utilization rate is increased, a brightness of the liquid crystal display panel is increased, and a power consumption of the liquid crystal display panel is reduced. ## Claims ### Claim 1 A liquid crystal display panel comprising: a backlight module; a first polarizer disposed on a side of the backlight module; and an array substrate disposed on a surface on a side of the first polarizer away from the backlight module; wherein the first polarizer comprises: a polarizing film disposed between the array substrate and the backlight module; and a plurality of microlens structures arranged in an array on a side of the polarizing film facing the backlight module; wherein the backlight module comprises a first prism film, and a surface on a side of the first prism film adjacent to the array substrate has a plurality of triangular prism structures arranged in an array and protruding toward the array substrate; a first groove is defined between two adjacent ones of the plurality of triangular prism structures, and each of the plurality of microlens structures covers at least one of the plurality of first grooves; any two adjacent ones of the plurality of microlens structures are abutted against each other, and an abutting side of any two adjacent ones of the plurality of microlens structures is disposed corresponding to a ridge on a side of one of the plurality of triangular prism structures adjacent to the polarizing film. ### Claim 2 (depends on 1) The liquid crystal display panel according to claim 1, wherein both the plurality of microlens structures and the plurality of triangular prism structures of the first prism film extend along a first direction. ### Claim 3 (depends on 2) The liquid crystal display panel according to claim 2, wherein a refractive index of a material of each of the plurality of microlens structures is greater than 1.6. ### Claim 4 (depends on 2) The liquid crystal display panel according to claim 2, wherein a first surface on a side of each of the plurality of microlens structures adjacent to the backlight module is planar, and a second surface on a side of each of the plurality of microlens structures away from the back light module is an arc surface convex toward the array substrate. ### Claim 5 (depends on 4) The liquid crystal display panel according to claim 4, in a section perpendicular to the first direction, an angle between a tangent line of an end point on a side of the second surface of each of the plurality of microlens structures adjacent to the backlight module and the first surface ranges from 30° to 60°. ### Claim 6 (depends on 4) The liquid crystal display panel according to claim 4, wherein a first gap is defined between the plurality of second surfaces of two adjacent ones of the plurality of microlens structures and a surface on a side of the polarizing film adjacent to the backlight module. ### Claim 7 (depends on 6) The liquid crystal display panel according to claim 6, wherein the first polarizer further comprises: a planarization layer disposed in at least one of the plurality of first gaps. ### Claim 8 (depends on 7) The liquid crystal display panel according to claim 7, wherein a refractive index of a material of the planarization layer is less than the refractive index of the material of the plurality of microlens structures. ### Claim 9 (depends on 1) The liquid crystal display panel according to claim 1, wherein a width of the first surface on the side of each of the plurality of microlens structures adjacent to the backlight module is a first width, and the first width of each of the plurality of microlens structures ranges from 24 micrometers (μm) to 200 μm. ### Claim 10 (depends on 9) The liquid crystal display panel according to claim 9, wherein a height of the plurality of microlens structure ranges from 12 μm to 70 μm. ### Claim 11 (depends on 10) The liquid crystal display panel according to claim 10, wherein a ratio of the first width to the height of the plurality of microlens structure ranges from 2:1 to 3:1. ### Claim 12 (depends on 9) The liquid crystal display panel according to claim 9, wherein a width between two ridges on a side of two adjacent ones of the plurality of triangular prism structures adjacent to the array substrate is a second width; the second width ranges from 24 μm to 110 μm. ### Claim 13 (depends on 12) The liquid crystal display panel according to claim 12, wherein a ratio of the first width to the second width ranges from 1 to 3. ### Claim 14 (depends on 2) The liquid crystal display panel according to claim 2, wherein the backlight module further comprises: a reflective film disposed on a side of the first prism film away from the array substrate. ### Claim 15 (depends on 14) The liquid crystal display panel according to claim 14, wherein the backlight module further comprises: a second prism film disposed on the side of the first prism film away from the array substrate; wherein a surface on a side of the second prism film adjacent to the array substrate has a plurality of triangular prism structures arranged in an array and protruding toward the array substrate. ### Claim 16 (depends on 15) The liquid crystal display panel according to claim 15, wherein the plurality of triangular prism structures of the second prism film extend along a second direction perpendicular to the first direction. ### Claim 17 (depends on 1) The liquid crystal display panel according to claim 1, further comprising: a color filter substrate disposed on a side of the array substrate away from the backlight module; and a liquid crystal layer disposed between the array substrate and the color filter substrate. ### Claim 18 (depends on 17) The liquid crystal display panel according to claim 17, wherein the array substrate comprises: an array base and a thin-film transistor device disposed on a side of the array substrate away from the backlight module. ### Claim 19 (depends on 17) The liquid crystal display panel according to claim 17, wherein the color filter substrate comprises: a color filter base arranged opposite to the array substrate; a black matrix disposed on a side of the color filter base facing the array substrate, the black matrix having a plurality of openings; and a color filter film arranged in the plurality of openings of the black matrix and extending and covering a surface on a side of the black matrix facing the array substrate. ### Claim 20 (depends on 17) The liquid crystal display panel according to claim 17, further comprising: a second polarizer disposed on a side of the color filter substrate away from the array substrate; and a cover plate disposed on a side of the second polarizer away from the array substrate.