# US 8,542,331 B2 · Display apparatus > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,542,331 B2 - Document ID: US8542331B2 - Status: Granted - Kind: B2 - Application number: 12/818,766 - Filed: 2010-06-18 - Published: 2011-01-27 - Granted: 2013-09-24 - Earliest claimed: 2009-07-24 - Assignees: Samsung Display Co., Ltd. - Applicants: Min-Ho Yoon; Seung-Ju Lee; Jong-Seong Kim - Inventors: Min-Ho Yoon; Seung-Ju Lee; Jong-Seong Kim - Web page: https://patentgrep.com/patent/US8542331B2 ## CPC - G02F 1/1345: Conductors connecting electrodes to cell terminals - H10D 86/00: Integrated devices formed in or on insulating or conducting substrates, e.g. formed in silicon-on-insulator [SOI] substrates or on stainless steel or glass substrates - G02F 1/13629: {Multilayer wirings} - H10D 86/441: {Interconnections, e.g. scanning lines} - H10D 86/60: wherein the TFTs are in active matrices - 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 is provided that improves product yield thereof. The display device according to the present invention includes: an insulation substrate; a plurality of gate pad metal layers disposed in a first direction on the substrate; a plurality of data pad metal layers disposed in a second direction on the substrate; a gate fanout unit connecting the gate pad metal layers and gate lines of a display area; a data fanout unit connecting the data pad metal layers and data lines of the display area; and a first insulating layer pattern on the gate pad metal layers, the data pad metal layers, the gate fanout unit, and the data fanout unit, wherein the first insulating layer pattern is partially removed on at least a portion of a region between two neighboring gate pad metal layers, or two neighboring data pad metal layers, thereby forming a first opening. ## Claims ### Claim 1 A display device comprising: a substrate; a plurality of gate pad metal layers disposed in a first direction on the substrate; a plurality of data pad metal layers disposed in a second direction on the substrate; a gate fanout unit connecting the gate pad metal layers and gate lines of a display area; a data fanout unit connecting the data pad metal layers and data lines of the display area; an upper insulating layer pattern disposed on the plurality of gate pad metal layers, the plurality of data pad metal layers, the gate fanout unit, and the data fanout unit, and a lower insulating layer pattern disposed between the substrate and both the plurality of data pad metal layers and data fanout unit, wherein the upper insulating layer pattern does not completely cover a first region between two neighboring gate pad metal layers, a second region between two neighboring data pad metal layers, or both the first region and the second region, thereby forming a first opening, and wherein the thickness of the lower insulating layer pattern disposed under the plurality of data pad metal layers is different from the thickness of the lower insulating layer pattern disposed in the first opening. ### Claim 2 (depends on 1) The display device of claim 1, wherein the substrate comprises a plastic material. ### Claim 3 (depends on 2) The display device of claim 2, further comprising an organic layer disposed between the substrate and both the plurality of gate pad metal layers and gate fanout unit. ### Claim 4 (depends on 3) The display device of claim 3, wherein the upper insulating layer pattern comprises a contact hole partially exposing each of the plurality of gate pad metal layers. ### Claim 5 (depends on 4) The display device of claim 4, wherein the upper insulating layer pattern does not completely cover a region between two neighboring gate fanout units, thereby forming a second opening. ### Claim 6 (depends on 5) The display device of claim 5, wherein the organic layer is exposed through the first opening and the second opening. ### Claim 7 (depends on 1) The display device of claim 1, wherein at least one of the plurality of gate pad metal layers and the gate fanout unit has a linear shape comprising curved portions. ### Claim 8 (depends on 1) The display device of claim 1, wherein at least one of the plurality of gate pad metal layers and the gate fanout unit has a shape of a plurality of rings connected to each other in a line. ### Claim 9 (depends on 8) The display device of claim 8, wherein each ring in the plurality of rings is hexagonal. ### Claim 10 (depends on 1) The display device of claim 1, wherein the upper insulating layer pattern comprises a contact hole partially exposing each of the plurality of data pad metal layers. ### Claim 11 (depends on 10) The display device of claim 10, wherein at least one of the plurality of data pad metal layers and the data fanout unit has a linear shape comprising curved portions. ### Claim 12 (depends on 10) The display device of claim 10, wherein at least one of the plurality of data pad metal layers and the data fanout unit has a shape of a plurality of rings connected to each other in a line. ### Claim 13 (depends on 12) The display device of claim 12, wherein each ring in the plurality of rings is hexagonal. ### Claim 14 (depends on 1) The display device of claim 1, further comprising an organic layer disposed between the substrate and the lower insulating layer pattern. ### Claim 15 (depends on 14) The display device of claim 14, wherein the upper insulating layer pattern does not completely cover a region between two neighboring data fanout units, thereby forming a second opening. ### Claim 16 (depends on 15) The display device of claim 15, wherein the lower insulating layer pattern has a third opening in positions corresponding to the first opening and the second opening, such that the organic layer is exposed through the first opening, the second opening, and the third opening. ### Claim 17 (depends on 16) The display device of claim 16, wherein the width of the lower insulating layer pattern under each of the plurality of data pad metal layers is equal to or larger than the width of each of the plurality of data pad metal layers. ### Claim 18 (depends on 1) The display device of claim 1, wherein the lower insulating layer pattern disposed in the first opening is thinner than the lower insulating layer pattern disposed under the plurality of data pad metal layers.