# US 2010/0165273 A1 · Color filter substrate and lcd utilizing the same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2010/0165273 A1 - Document ID: US20100165273A1 - Status: Published application - Kind: A1 - Application number: 12/723,809 - Filed: 2010-03-15 - Published: 2010-07-01 - Earliest claimed: 2006-12-01 - Assignees: Au Optronics Corporation - Inventors: Ching-Sheng Cheng; Chih-Jen Hu - Web page: https://patentgrep.com/patent/US20100165273A1 ## CPC - G02B 5/201: {in the form of arrays} - G02F 1/133514: {Colour filters} - G02F 1/13394: {spacers regularly patterned on the cell subtrate, e.g. walls, pillars (G02F1/133377 takes precedence)} - G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS - 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 An LCD including a color filter substrate, an array substrate, and a liquid crystal layer therebetween is provided. This color filter substrate has a plurality of color filters with overlap regions acting as a black matrix. Subsequently, patterned regions are defined in part of the overlap regions. After formation of a planarization layer and a conductive layer, spacers are formed in the patterned regions. The spacers may not shield the transparent region of the color filters, thereby enhancing the aperture ratio of the color filter substrate. Additionally, the thickness of the planarization layer in the patterned regions is not influenced by the overlap of the color filters, such that the spacers thereon have a uniform height. Furthermore, the at least one spacer of the color filter substrate and at least one data line of the array substrate are overlapped. ## Claims ### Claim 1 A liquid crystal display, comprising: a color filter substrate, comprising: a substrate; a first color filter formed on the substrate; a second color filter formed on the substrate, wherein the first color filter and the second color filter overlap to form an overlap region; a conductive layer on the first and second color filters; and at least one spacer formed in the overlap region; an array substrate, comprising: at least one data line, wherein the at least one spacer and the at least one data line are overlapped; and a liquid crystal layer disposed between the color filter substrate and the array substrate. ### Claim 2 (depends on 1) The liquid crystal display as claimed in claim 1, wherein the overlap region comprises a patterned region and an non-patterned region, and wherein the at least one spacer is located in the patterned region. ### Claim 3 (depends on 2) The liquid crystal display as claimed in claim 2, wherein the at least one spacer is not located in the non-patterned region. ### Claim 4 (depends on 2) The liquid crystal display as claimed in claim 2, wherein the patterned region exposes part of the color filters. ### Claim 5 (depends on 2) The liquid crystal display as claimed in claim 2, wherein the patterned region exposes part of the substrate. ### Claim 6 (depends on 2) The liquid crystal display as claimed in claim 2, wherein the patterned region is circular, square, rectangular, rhomboid, hexagonal, or elliptical. ### Claim 7 (depends on 2) The liquid crystal display as claimed in claim 2, wherein one of the overlap region and the patterned region are of the same width. ### Claim 8 (depends on 2) The liquid crystal display as claimed in claim 2, wherein the first and second filters in the patterned region do not contact. ### Claim 9 (depends on 2) The liquid crystal display as claimed in claim 2, wherein the color filter substrate further comprises a planarization layer covering the first and second color filters, and the conductive layer is located on the planarization layer. ### Claim 10 (depends on 9) The liquid crystal display as claimed in claim 9, wherein the planarization layer in the patterned region is thicker than the planarization layer on the first and second color filters out of the patterned region. ### Claim 11 (depends on 1) The liquid crystal display as claimed in claim 1, wherein the at least one data line has a wider width than the overlap region. ### Claim 12 A liquid crystal display, comprising: a color filter substrate, comprising: a substrate; a first color filter formed on the substrate; a second color filter formed on the substrate, wherein the first color region, wherein the overlap region comprises a patterned region and an non-patterned region; a conductive layer on the first and second color filters; and at least one spacer formed in the overlap region; an array substrate, comprising: at least one data line, wherein the at least one data line and the overlap region are substantially overlapped; and a liquid crystal layer disposed between the color filter substrate and the array substrate. ### Claim 13 (depends on 12) The liquid crystal display as claimed in claim 12, wherein the at least one spacer is located in the patterned region. ### Claim 14 (depends on 12) The liquid crystal display as claimed in claim 12, wherein the at least one spacer is not located in the non-patterned region. ### Claim 15 (depends on 12) The liquid crystal display as claimed in claim 12, wherein the patterned region exposes part of the color filters. ### Claim 16 (depends on 12) The liquid crystal display as claimed in claim 12, wherein the patterned region is circular, square, rectangular, rhomboid, hexagonal, or elliptical. ### Claim 17 (depends on 12) The liquid crystal display as claimed in claim 12, wherein one of the overlap region and the patterned region are of the same width. ### Claim 18 (depends on 12) The liquid crystal display as claimed in claim 12, wherein the first and second filters in the patterned region do not contact. ### Claim 19 (depends on 12) The liquid crystal display as claimed in claim 12, wherein the color filter substrate further comprises a planarization layer covering the first and second color filters, and the conductive layer is located on the planarization layer, wherein the planarization layer in the patterned region is thicker than the planarization layer on the first and second color filters out of the patterned region. ### Claim 20 (depends on 12) The liquid crystal display as claimed in claim 12, wherein the at least one data line has a wider width than the overlap region.