# US 2021/0278733 A1 · Display device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2021/0278733 A1 - Document ID: US20210278733A1 - Status: Published application - Kind: A1 - Application number: 17/005,198 - Filed: 2020-08-27 - Published: 2021-09-09 - Earliest claimed: 2020-03-04 - Assignees: Samsung Display Co., Ltd. - Applicants: Samsung Display Co., LTD. - Inventors: Jung Hwan HWANG - Web page: https://patentgrep.com/patent/US20210278733A1 ## CPC - G02F 1/133371: {Cells with varying thickness of the liquid crystal layer} - G02F 1/136286: {Wiring, e.g. gate line, drain line} - G02F 1/133345: {Insulating layers (G02F1/1335, G02F1/1337, G02F1/135, G02F1/136 take precedence)} - G02F 1/134309: {characterised by their geometrical arrangement} - G02F 1/13606: {having means for reducing parasitic capacitance} - G02F 1/136213: {Storage capacitors associated with the pixel electrode} - G02F 1/1368: in which the switching element is a three-electrode device {(G02F1/136277 takes precedence)} - H10D 86/441: {Interconnections, e.g. scanning lines} - H10D 86/60: wherein the TFTs are in active matrices - G02F 1/136222: {Colour filters incorporated in the active matrix substrate} - G02F 2201/121: common or background - H10D 86/451: {characterised by the compositions or shapes of the interlayer dielectrics} - 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 - H10D: INORGANIC ELECTRIC SEMICONDUCTOR DEVICES ## Abstract A display device includes: a liquid crystal layer between a first substrate and a second substrate; a contact region electrically connecting one of horizontal gate lines to one of vertical signal lines; a plurality of data lines; and a plurality of pixels including transistors that are electrically connected to the horizontal gate lines and the data lines, wherein: the plurality of pixels includes a kickback pixel defined as a pixel that is affected by a kickback voltage caused by the one vertical signal line, and a normal pixel defined as a pixel that is less affected by the kickback voltage caused by the one vertical signal line than the kickback pixel, and the liquid crystal layer in the kickback pixel having a first cell gap, and the liquid crystal layer in the normal pixel having a second cell gap greater than the second cell gap. ## Claims ### Claim 1 A display device comprising: a first substrate and a second substrate facing each other; a liquid crystal layer disposed between the first substrate and the second substrate; a plurality of horizontal gate lines disposed on the first substrate and extending generally in a first direction; a plurality of vertical signal lines disposed in a conductive layer that is different from the horizontal gate lines and extending in a second direction intersecting the first direction; a contact region electrically connecting one of the horizontal gate lines to one of the vertical signal lines; a plurality of data lines extending in the second direction; and a plurality of pixels including transistors that are electrically connected to the horizontal gate lines and the data lines, wherein the plurality of pixels includes a kickback pixel defined as a pixel that is affected by a kickback voltage caused by the one vertical signal line, and a normal pixel defined as a pixel that is less affected by the kickback voltage caused by the one vertical signal line than the kickback pixel, and wherein the liquid crystal layer in the kickback pixel has a first cell gap, and the liquid crystal layer in the normal pixel has a second cell gap greater than the first cell gap. ### Claim 2 (depends on 1) The display device of claim 1, wherein the kickback pixel is directly adjacent to the one vertical signal line in the first direction. ### Claim 3 (depends on 2) The display device of claim 2, wherein the kickback pixel comprises a first kickback pixel and a second kickback pixel that are disposed at opposite sides of one of the plurality of vertical signal lines and are configured to display different colors. ### Claim 4 (depends on 3) The display device of claim 3, wherein: the normal pixel comprises a first normal pixel to display a different color than the colors displayed by the first kickback pixel and the second kickback pixel, and at least one of the first and second kickback pixels is disposed between the first normal pixel and a vertical signal line of the plurality of vertical signal lines disposed closest to the first normal pixel. ### Claim 5 (depends on 1) The display device of claim 1, wherein the contact region comprises a contact portion, and the normal pixel is adjacent or spaced in the second direction with respect to a pixel electrically connected to the one horizontal gate line that is electrically connected to the one vertical signal line through the contact portion. ### Claim 6 (depends on 5) The display device of claim 5, wherein the kickback pixel comprises a pixel in at least one pixel row that is adjacent in a direction opposite to the second direction with respect to a pixel electrically connected to the one horizontal gate line that is electrically connected to the one vertical signal line through the contact portion. ### Claim 7 (depends on 1) The display device of claim 1, wherein a number of pixel rows of the kickback pixel adjacent to each other in the second direction is a product of “a” and “b” when a number of adjacent horizontal gate lines electrically connected to one of the plurality of vertical signal lines through the contact region is “a” (wherein “a” is a natural number), when a period during which a gate-on voltage of a gate signal transmitted by the one horizontal gate line is maintained is “b” horizontal periods (wherein “b” is a natural number), and when a period in which gate-on voltage periods of neighboring gate signals overlap each other is (b-1) horizontal periods. ### Claim 8 (depends on 1) The display device of claim 1, further comprising a plurality of insulating layers positioned between the first substrate and the liquid crystal layer, wherein at least one insulating layer of the plurality of insulating layers in the normal pixel has a first thickness, and the at least one insulating layer in the kickback pixel has second thickness greater than the first thickness. ### Claim 9 (depends on 8) The display device of claim 8, wherein the first thickness is substantially zero. ### Claim 10 (depends on 8) The display device of claim 8, wherein: the plurality of insulating layers comprises a first insulating layer disposed between the one horizontal gate line and the one vertical signal line, the contact region comprises a contact portion formed in the first insulating layer as a first opening on the one horizontal gate line, and the at least one insulating layer comprises the first insulating layer. ### Claim 11 (depends on 1) The display device of claim 1, further comprising: a common electrode disposed below the second substrate and a pixel electrode electrically connected to the transistors, wherein the pixel electrode and the common electrode face each other with the liquid crystal layer therebetween to form a liquid crystal capacitor. ### Claim 12 A display device comprising: a first substrate and a second substrate facing each other; a liquid crystal layer disposed between the first substrate and the second substrate; a plurality of horizontal gate lines disposed on the first substrate and extending generally in a first direction; a plurality of vertical signal lines disposed in a conductive layer that is different from the horizontal gate lines and extending in a second direction intersecting the first direction; a contact region electrically connecting one of the horizontal gate lines to one of the vertical signal lines; a plurality of data lines extending in the second direction; and a plurality of pixels including transistors that are electrically connected to the horizontal gate lines and the data lines, wherein the plurality of pixels includes a first pixel that is directly adjacent to the one vertical signal line in the first direction and a second pixel interposed between at least one pixel and the one vertical signal line adjacent to the second pixel, and wherein the liquid crystal layer in the first pixel has a first cell gap, and the liquid crystal layer in the second pixel has a second cell gap greater than the first cell gap. ### Claim 13 (depends on 12) The display device of claim 12, wherein the first pixel comprises a first kickback pixel and a second kickback pixel that are disposed at opposite sides of a vertical signal line of the plurality of vertical signal lines and are configured to display different colors. ### Claim 14 (depends on 13) The display device of claim 13, wherein the second pixel is configured to display a different color than colors displayed by the first kickback pixel and the second kickback pixel. ### Claim 15 (depends on 12) The display device of claim 12, further comprising a plurality of insulating layers positioned between the first substrate and the liquid crystal layer, wherein at least one insulating layer of the plurality of insulating layers disposed in the first pixel has a first thickness, the at least one insulating layer in the second pixel has a second thickness smaller than the first thickness. ### Claim 16 (depends on 15) The display device of claim 15, wherein the first thickness is substantially zero. ### Claim 17 (depends on 15) The display device of claim 15, wherein: the plurality of insulating layers comprises a first insulating layer disposed between the one horizontal gate line and the one vertical signal line, the contact region comprises a contact portion formed in the first insulating layer as a first opening on the one horizontal gate line, and the at least one insulating layer comprises the first insulating layer. ### Claim 18 (depends on 12) The display device of claim 12, further comprising: a common electrode disposed below the second substrate; and a pixel electrode electrically connected to the transistors, wherein the pixel electrode and the common electrode face each other with the liquid crystal layer therebetween to form a liquid crystal capacitor. ### Claim 19 A display device comprising: a first substrate; a plurality of horizontal gate lines disposed on the first substrate and extending generally in a first direction; a plurality of vertical signal lines disposed in a conductive layer that is different from the horizontal gate lines and extending in a second direction intersecting the first direction; a plurality of data lines extending in the second direction; a transistor electrically connected to a horizontal gate line of the plurality of horizontal gate lines and a data line of the plurality of data lines; a pixel electrode electrically connected to the transistor; and an insulating layer disposed between the horizontal gate line and the vertical signal line, wherein the insulating layer has an opening disposed on the horizontal gate line, the vertical signal line is electrically connected to the horizontal gate line through the opening, at least three pixel electrodes are adjacent to each other and disposed between two adjacent vertical signal lines, and the insulating layer overlapping a first pixel electrode disposed in the middle of the at least three pixel electrodes has a first average thickness and the insulating layer overlapping a second pixel electrode of the at least three pixel electrode immediately adjacent the vertical signal lines has a second average thickness, with the first average thickness being smaller than the second average thickness. ### Claim 20 (depends on 19) The display device of claim 19, wherein the insulating layer overlapping the first pixel electrode has a recess overlapping the first pixel electrode.