# US 10,310,343 B2 · Display panel > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,310,343 B2 - Document ID: US10310343B2 - Status: Granted - Kind: B2 - Application number: 15/826,086 - Filed: 2017-11-29 - Published: 2018-05-31 - Granted: 2019-06-04 - Earliest claimed: 2016-11-30 - Assignees: LG Display Co., Ltd. - Applicants: LG Display Co., Ltd. - Inventors: Hoon-Sub Shin; Mi-Kyung Lee; Ji-Yun Jang; Jun-Sung Kong; Yong-Hee Han; Eun-Young Yun - Web page: https://patentgrep.com/patent/US10310343B2 ## CPC - G02F 1/136209: {Light shielding layers, e.g. black matrix, incorporated in the active matrix substrate, e.g. structurally associated with the switching element} - G02F 1/133512: {Light shielding layers, e.g. black matrix (G02F1/136209 takes precedence)} - G02F 1/133524: {Light-guides, e.g. fibre-optic bundles, louvered or jalousie light-guides} - G02F 1/1368: in which the switching element is a three-electrode device {(G02F1/136277 takes precedence)} - G02F 1/136222: {Colour filters incorporated in the active matrix substrate} - 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 Disclosed is a display panel in which a black matrix is formed on an upper substrate, which is disposed so as to face a lower substrate, so as to delimit each pixel area, a plurality of light control partitions is provided in the pixel area of the upper substrate, a color filter is provided in the pixel area of the upper substrate, and an overcoat layer is provided over the entire surface of the upper substrate. The light control partitions are formed in the pixel area simultaneously with the formation of the black matrix, which enables the omission of an existing light control film. Thereby, a narrow viewing angle is realized without increasing the thickness or manufacturing cost of a product. ## Claims ### Claim 1 A display panel comprising: a lower substrate having a thin-film transistor array; an upper substrate disposed so as to face the lower substrate; a black matrix provided on the upper substrate and configured to delimit each pixel area; more than two light control partitions provided in the pixel area of the upper substrate; a color filter provided in the pixel area of the upper substrate; an overcoat layer provided over an entire surface of the upper substrate on which the color filter and the more than two light control partitions have been provided; and a liquid crystal layer provided between the upper substrate and the lower substrate, wherein the more than two light control partitions are embedded in the color filter. ### Claim 2 (depends on 1) The display panel according to claim 1, wherein the more than two light control partitions are formed of a same material as the black matrix. ### Claim 3 (depends on 1) The display panel according to claim 1, wherein the more than two light control partitions are formed of a material different from a material of the black matrix. ### Claim 4 (depends on 1) The display panel according to claim 1, wherein each of the more than two light control partitions has a same thickness as the black matrix. ### Claim 5 (depends on 1) The display panel according to claim 1, wherein each of the more than two light control partitions has a thickness different from a thickness of the black matrix. ### Claim 6 (depends on 5) The display panel according to claim 5, wherein the thickness of each of the more than two light control partitions is greater than the thickness of the black matrix. ### Claim 7 (depends on 1) The display panel according to claim 1, wherein each of the more than two light control partitions has a width smaller than a width of the black matrix. ### Claim 8 (depends on 1) The display panel according to claim 1, wherein a distance between the more than two light control partitions is smaller than a cell gap. ### Claim 9 (depends on 1) The display panel according to claim 1, wherein each of the more than two light control partitions has a width smaller than a cell gap. ### Claim 10 (depends on 1) The display panel according to claim 1, wherein the more than two light control partitions are provided in the color filter of the pixel area. ### Claim 11 (depends on 1) The display panel according to claim 1, wherein a height of each of the more than two light control partitions is greater than a height of the color filter. ### Claim 12 (depends on 1) The display panel according to claim 1, wherein a height of each of the more than two light control partitions is smaller than a height of the color filter. ### Claim 13 (depends on 1) The display panel according to claim 1, wherein a height of each of the more than two light control partitions is greater than a height of the black matrix. ### Claim 14 (depends on 1) The display panel according to claim 1, wherein a height of each of the more than two light control partitions is equal to a height of the black matrix. ### Claim 15 (depends on 1) The display panel according to claim 1, wherein each of the more than two light control partitions has a rectangular, trapezoidal, triangular or any other cross-sectional shape. ### Claim 16 (depends on 1) The display panel according to claim 1, wherein both side ends of each of the more than two light control partitions are connected to the black matrix.