# US 10,503,038 B2 · Display device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,503,038 B2 - Document ID: US10503038B2 - Status: Granted - Kind: B2 - Application number: 15/958,052 - Filed: 2018-04-20 - Published: 2018-08-23 - Granted: 2019-12-10 - Earliest claimed: 2015-01-21 - Assignees: Innolux Corporation - Applicants: InnoLux Corporation - Inventors: Yu-Tsung Liu; Kuan-Yu Chiu; Te-Yu Lee; Chao-Hsiang Wang - Web page: https://patentgrep.com/patent/US10503038B2 ## CPC - G02F 1/1368: in which the switching element is a three-electrode device {(G02F1/136277 takes precedence)} - G02F 1/136227: {Through-hole connection of the pixel electrode to the active element through an insulation layer} - H10D 30/6731: {Top-gate only TFTs} - H10D 30/6745: {Polycrystalline or microcrystalline silicon} - H10D 86/441: {Interconnections, e.g. scanning lines} - H10D 86/60: wherein the TFTs are in active matrices - H10K 59/123: Connection of the pixel electrodes to the thin film transistors [TFT] - H10K 59/124: Insulating layers formed between TFT elements and OLED elements - H10K 59/131: Interconnections, e.g. wiring lines or terminals - H10K 77/10: Substrates, e.g. flexible substrates - 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 - H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES ## Abstract A display device includes a first substrate, and a semiconductor layer, and a gate line disposed over the first substrate. The gate line overlaps the semiconductor layer. The display device also includes a first insulating layer disposed over the semiconductor layer, wherein a first opening is formed through the first insulating layer. The display device further includes a metal pad disposed over the first insulating layer, being electrically connected to the semiconductor layer through the first opening, and a data line disposed over the first insulating layer, wherein the data line crosses the gate line. In addition, the display device includes a second insulating layer disposed over the metal pad and the first insulating layer, wherein a second opening is formed through the second insulating layer, and the second opening at least partially overlaps the gate line. ## Claims ### Claim 1 A display device, comprising: a first substrate; a semiconductor layer disposed over the first substrate; a gate line disposed over the first substrate; a first insulating layer disposed over the semiconductor layer, wherein a first opening is formed through the first insulating layer; a metal pad disposed over the first insulating layer, wherein the metal pad is electrically connected to the semiconductor layer through the first opening; a data line disposed over the first insulating layer, wherein the data line crosses the gate line; and a second insulating layer disposed over the metal pad and the first insulating layer, wherein a second opening is formed through the second insulating layer, part of the second insulating layer is disposed in the first opening to form a recess, and part of the metal pad disposed over a sidewall surface of the first opening is exposed by the recess. ### Claim 2 (depends on 1) The display device as claimed in claim 1, wherein the metal pad at least partially overlaps the gate line. ### Claim 3 (depends on 1) The display device as claimed in claim 1, wherein the second opening at least partially overlaps the first opening. ### Claim 4 (depends on 1) The display device as claimed in claim 1, wherein an area of the metal pad exposed by the second opening is a first area, an area of the semiconductor layer exposed by the first opening is a second area, and the first area is greater than the second area. ### Claim 5 (depends on 1) The display device as claimed in claim 1, wherein an another first opening is formed through the first insulating layer, the another first opening overlaps the data line, and a distance between the another first opening and the gate line is different from a distance between the first opening and the gate line. ### Claim 6 (depends on 5) The display device as claimed in claim 5, wherein the distance between the another first opening and the gate line is greater than the distance between the first opening and the gate line. ### Claim 7 (depends on 1) The display device as claimed in claim 1, further comprising: a display layer disposed on the first substrate. ### Claim 8 (depends on 7) The display device as claimed in claim 7, wherein the display layer is a liquid-crystal layer. ### Claim 9 (depends on 7) The display device as claimed in claim 7, wherein the display layer is a light-emitting diode layer. ### Claim 10 (depends on 1) The display device as claimed in claim 1, further comprising a pixel electrode, wherein the pixel electrode is electrically connected to the metal pad through the second opening. ### Claim 11 (depends on 1) The display device as claimed in claim 1, wherein the first opening has a first geometric center, the second opening has a second geometric center, an extension line passing through the first geometric center and the second geometric center is inclined to the gate line with an included angle, and the included angle is greater than 0 degrees and less than 90 degrees. ### Claim 12 A display device, comprising: a first substrate; a semiconductor layer disposed over the first substrate; a gate line disposed over the first substrate; a first insulating layer disposed over the semiconductor layer, wherein a first opening is formed through the first insulating layer; a metal pad disposed over the first insulating layer, wherein the metal pad is electrically connected to the semiconductor layer through the first opening; a data line disposed over the first insulating layer, wherein the data line crosses the gate line; and a second insulating layer disposed over the metal pad and the first insulating layer, wherein a second opening is formed through the second insulating layer, wherein in a top view, a bottom of the second opening partially overlaps a bottom of the first opening, and a portion of the bottom of the first opening is located outside the bottom of the second opening. ### Claim 13 (depends on 12) The display device as claimed in claim 12, wherein an another first opening is formed through the first insulating layer, the another first opening overlaps the data line, and a distance between the another first opening and the gate line is different from a distance between the first opening and the gate line. ### Claim 14 (depends on 13) The display device as claimed in claim 13, wherein the distance between the another first opening and the gate line is greater than a distance between the first opening and the gate line. ### Claim 15 (depends on 12) The display device as claimed in claim 12, further comprising: a display layer disposed on the first substrate. ### Claim 16 (depends on 15) The display device as claimed in claim 15, wherein the display layer is a liquid-crystal layer. ### Claim 17 (depends on 15) The display device as claimed in claim 15, wherein the display layer is a light-emitting diode layer. ### Claim 18 (depends on 12) The display device as claimed in claim 12, further comprising a pixel electrode, wherein the pixel electrode is electrically connected to the metal pad through the second opening. ### Claim 19 (depends on 12) The display device as claimed in claim 12, wherein the first opening has a first geometric center, the second opening has a second geometric center, an extension line passing through the first geometric center and the second geometric center is inclined to the gate line with an included angle, and the included angle is greater than 0 degrees and less than 90 degrees.