# US 9,753,337 B2 · Display device and reflective liquid crystal display device comprising first to fourth pixels respectively connected to first to fourth signal lines > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,753,337 B2 - Document ID: US9753337B2 - Status: Granted - Kind: B2 - Application number: 14/607,543 - Filed: 2015-01-28 - Published: 2015-07-30 - Granted: 2017-09-05 - Earliest claimed: 2014-01-29 - Assignees: Japan Display Inc. - Applicants: Japan Display Inc. - Inventors: Hirotaka Hayashi - Web page: https://patentgrep.com/patent/US9753337B2 ## CPC - G02F 1/134336: {Matrix} - G02F 2201/52: RGB geometrical arrangements - 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 According to one embodiment, a display device includes a unit pixel includes a first pixel including a first pixel electrode, a second pixel including a second pixel electrode, a third pixel including a third pixel electrode, and a fourth pixel including a fourth pixel electrode, a scanning line electrically connected to the first to fourth pixels, and first to fourth signal lines extending in the column direction and disposed at intervals in the row direction, the first to fourth signal lines electrically connected to the first to fourth pixels, respectively, wherein the first to fourth pixel electrodes are light reflective, and the scanning line is sequentially drawn into each pixel area of the first to fourth pixels in a manner that an entire width of the scanning line is contained within each pixel area. ## Claims ### Claim 1 A display device comprising: a unit pixel comprising a first pixel including a first pixel electrode, a second pixel adjacent to the first pixel in a column direction and including a second pixel electrode, a third pixel adjacent to the first pixel in a row direction and including a third pixel electrode, and a fourth pixel adjacent to the second pixel in the row direction and adjacent to the third pixel in the column direction and including a fourth pixel electrode; a scanning line electrically connected to the first to fourth pixels; and first to fourth signal lines extending in the column direction and disposed at intervals in the row direction, the first to fourth signal lines electrically connected to the first to fourth pixels, respectively, wherein the first to fourth pixel electrodes are light reflective, the scanning line is sequentially drawn into each pixel area of the first to fourth pixels in a manner that an entire width of the scanning line is contained within each pixel area, and the scanning line is drawn between the first sixel and the second pixel in the column direction, drawn between the second pixel and the fourth pixel in the row direction, and drawn between the fourth pixel and the third pixel in the column direction. ### Claim 2 (depends on 1) The display device according to claim 1, wherein the scanning line has a rectangular wave shape which is formed of a line along the row direction and the column direction within the unit pixel. ### Claim 3 (depends on 1) The display device according to claim 1, wherein the scanning line has a sawtooth shape which is formed of a line crossing the row direction and the column direction within the unit pixel. ### Claim 4 (depends on 1) The display device according to claim 1, wherein the scanning line has a sawtooth shape which is formed of a line crossing the row direction and the column direction in which a top portion and valley portion of the sawtooth shape are replaced with lines along the row direction within the unit pixel. ### Claim 5 (depends on 1) The display device according to claim 1, wherein the first to fourth pixels are configured to display different colors. ### Claim 6 (depends on 5) The display device according to claim 5, wherein the first to fourth pixels are a pixel configured to display red, a pixel configured to display green, a pixel configured to display blue, and a pixel configured to display white. ### Claim 7 (depends on 1) The display device according to claim 1, wherein the unit pixel is a square pixel. ### Claim 8 A liquid crystal display device comprising: a unit pixel comprising a first pixel including a first pixel electrode, a second pixel adjacent to the first pixel in a column direction and including a second pixel electrode, a third pixel adjacent to the first pixel in a row direction and including a third pixel electrode, and a fourth pixel adjacent to the second pixel in the row direction and adjacent to the third pixel in the column direction and including a fourth pixel electrode; a scanning line electrically connected to the first to fourth pixels; and first to fourth signal lines extending in the column direction and disposed at intervals in the row direction, the first to fourth signal lines electrically connected to the first to fourth pixels, respectively, wherein the first to fourth pixel electrodes are light reflective, the scanning line is sequentially drawn into each pixel area of the first to fourth pixels in a manner that an entire width of the scanning line is contained within each pixel area, and the scanning line is drawn between the first pixel and the second pixel in the column direction, drawn between the second pixel and the fourth pixel in the row direction, and drawn between the fourth pixel and the third pixel in the column direction. ### Claim 9 A reflection-type liquid crystal display device comprising: a pixel area in which unit pixels are arranged in a matrix, each unit pixel comprising a first pixel including a first pixel electrode, a second pixel adjacent to the first pixel in a column direction and including a second pixel electrode, a third pixel adjacent to the first pixel in a row direction and including a third pixel electrode, and a fourth pixel adjacent to the second pixel in the row direction and adjacent to the third pixel in the column direction and including a fourth pixel electrode; an array substrate including the pixel area; a counter-substrate opposed to the array substrate; a scanning line electrically connected to the first to fourth pixels; and first to fourth signal lines extending in the column direction and disposed at intervals in the row direction, the first to fourth signal lines electrically connected to the first to fourth pixels, respectively, wherein the first to fourth pixel electrodes are light reflective, the scanning line is sequentially drawn into each pixel area of the first to fourth pixels in a manner that an entire width of the scanning line is contained within each pixel area, and the scanning line is drawn between the first pixel and the second pixel in the column direction, drawn between the second pixel and the fourth pixel in the row direction, and drawn between the fourth pixel and the third pixel in the column direction. ### Claim 10 (depends on 9) The reflection-type liquid crystal display device according to claim 9, wherein the scanning line has a rectangular wave shape which is formed of a line along the row direction and the column direction within the unit pixel. ### Claim 11 (depends on 9) The reflection-type liquid crystal display device according to claim 9, wherein the scanning line has a sawtooth shape which is formed of a line crossing the row direction and the column direction within the unit pixel. ### Claim 12 (depends on 9) The reflection-type liquid crystal display device according to claim 9, wherein the scanning line has a sawtooth shape which is formed of a line crossing the row direction and the column direction in which a top portion and valley portion of the sawtooth shape are replaced with lines along the row direction within the unit pixel. ### Claim 13 (depends on 9) The reflection-type liquid crystal display device according to claim 9, wherein the first to fourth pixels are configured to display different colors. ### Claim 14 (depends on 13) The reflection-type liquid crystal display device according to claim 13, wherein the first to fourth pixels are a pixel configured to display red, a pixel configured to display green, a pixel configured to display blue, and a pixel configured to display white. ### Claim 15 (depends on 9) The reflection-type liquid crystal display device according to claim 9, wherein the unit pixel is a square pixel. ### Claim 16 (depends on 9) The reflection-type liquid crystal display device according to claim 9, wherein the unit pixel is provided with a part of the pixel area.