# US 10,371,993 B2 · Curved liquid crystal display > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,371,993 B2 - Document ID: US10371993B2 - Status: Granted - Kind: B2 - Application number: 15/498,195 - Filed: 2017-04-26 - Published: 2017-08-10 - Granted: 2019-08-06 - Earliest claimed: 2015-01-07 - Assignees: Samsung Display Co., Ltd. - Applicants: Samsung Display Co., Ltd. - Inventors: Hyun-Ho Kang; O Sung Seo; Seung Jun Yu; Ha Won Yu; Ki Kyung Youk; Yeo Geon Yoon; Sang-Myoung Lee; Tae Kyung Yim - Web page: https://patentgrep.com/patent/US10371993B2 ## CPC - G02F 1/134309: {characterised by their geometrical arrangement} - G02F 1/133707: {Structures for producing distorted electric fields, e.g. bumps, protrusions, recesses, slits in pixel electrodes} - G02F 1/133757: {with different alignment orientations} - G02F 1/134345: {Subdivided pixels, e.g. for grey scale or redundancy} - G02F 1/13624: {having more than one switching element per pixel} - G02F 2201/123: pixel - 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 A curved liquid crystal display includes a first panel having a pixel electrode including crossed stem parts, a plurality of fine branch parts extending from the crossed stem parts, and fine slits positioned between fine branch parts adjacent to each other, a second panel having a common electrode, and a liquid crystal layer between the first panel and the second panel. Misalignment between the first panel and the second lower panel is determined and a pitch, which is a sum of a width of the fine branch part and a width of the fine slit, gradually increases from a region having a small misalignment toward a region having a large misalignment. ## Claims ### Claim 1 A curved liquid crystal display, comprising: a plurality of first pixel in a first area, each first pixel including a first pixel electrode including a first crossed stem part, first fine branch parts extending from the first crossed stem part, and a first fine slit positioned between the first fine branch parts adjacent to each other; and a plurality of second pixel in a second area surrounding the first area, each second pixel including a second pixel electrode including a second crossed stem part, second fine branch parts extending from the second crossed stem part, and a second fine slit positioned between the second fine branch parts adjacent to each other, wherein: lengths and a number of the first fine branch parts of each first pixel are substantially equal to lengths and a number of the second fine branch parts of each second pixel such that each of the first fine branch parts of each first pixel corresponds to each of the second fine branch parts of each second pixel, and widths of the first fine branch parts of each first pixel are greater than widths of corresponding second fine branch parts of each second pixel. ### Claim 2 (depends on 1) The curved liquid crystal display as claimed in claim 1, wherein: the plurality of first pixels are positioned in the first area corresponding center areas on a left area and a right area of a screen, and the plurality of second pixels are positioned in the second area corresponding a peripheral area of the screen, the peripheral area surrounding the center areas. ### Claim 3 (depends on 2) The curved liquid crystal display as claimed in claim 2, wherein: a width of the first fine slit is larger than a width of the second fine slit. ### Claim 4 (depends on 1) The curved liquid crystal display as claimed in claim 1, wherein a first pitch, which is a sum of each of the widths of the first fine branch parts and a width of the first fine slit, is different from a second pitch, which is a sum of each of the widths of the second fine branch parts and a width of the second fine slit. ### Claim 5 (depends on 4) The curved liquid crystal display as claimed in claim 4, wherein: the first pitch is larger than the second pitch. ### Claim 6 (depends on 4) The curved liquid crystal display as claimed in claim 4, wherein: each of the first pitch and the second pitch is between 5 μm and 7 μm. ### Claim 7 (depends on 4) The curved liquid crystal display as claimed in claim 4, wherein: the first pitch is 7 μm. ### Claim 8 (depends on 1) The curved liquid crystal display as claimed in claim 1, wherein: a width of the first fine slit is larger than each of the widths of the first fine branch parts. ### Claim 9 (depends on 1) The curved liquid crystal display as claimed in claim 1, wherein: a width of the second fine slit is larger than each of the widths of the second fine branch parts. ### Claim 10 (depends on 1) The curved liquid crystal display as claimed in claim 1, wherein: each of a width of the first fine slit and a width of the second fine slit is equal to or more than 4 μm. ### Claim 11 (depends on 1) The curved liquid crystal display as claimed in claim 1, wherein: each of the first pixel electrode and the second pixel electrode includes a first subpixel electrode and a second subpixel electrode, and when a same data voltage is applied to the first subpixel electrode and the second subpixel electrode, the first subpixel electrode and the second subpixel electrode are charged to different voltages from each other. ### Claim 12 (depends on 1) The curved liquid crystal display as claimed in claim 1, wherein the first and second pixels are a same color pixel. ### Claim 13 (depends on 1) The curved liquid crystal display as claimed in claim 1, wherein the first and second pixels are in different areas of a screen including different misalignments between first and second panels. ### Claim 14 (depends on 1) The curved liquid crystal display as claimed in claim 1, further including a plurality of third pixels in a third area surrounding the first and second areas, each third pixel including a third pixel electrode including a third crossed stem part, third fine branch parts extending from the third crossed stem part, and a third fine slit positioned between the third fine branch parts adjacent to each other, wherein: lengths and a number of the third fine branch parts of each third pixel are substantially equal to the lengths and the number of the first branch parts of each first pixel and the lengths and the number of the second fine branch parts of each second pixel such that each of the third fine branch parts of each third pixel corresponds to each of the first and second fine branch parts of each first pixel and each second pixel, and widths of the third fine branch parts of each third pixel are smaller than the widths of corresponding first and second fine branch parts of each first pixel and each second pixel.