# US 10,120,255 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 10,120,255 B2 - Document ID: US10120255B2 - Status: Granted - Kind: B2 - Application number: 15/447,249 - Filed: 2017-03-02 - Published: 2017-09-21 - Granted: 2018-11-06 - Earliest claimed: 2016-03-16 - Assignees: Innolux Corporation - Applicants: InnoLux Corporation - Inventors: Chien-Hung Chen; Hsia-Ching Chu; Ming-Chien Sun - Web page: https://patentgrep.com/patent/US10120255B2 ## CPC - G02F 1/136286: {Wiring, e.g. gate line, drain line} - G02F 1/133512: {Light shielding layers, e.g. black matrix (G02F1/136209 takes precedence)} - G02F 1/134309: {characterised by their geometrical arrangement} - G02F 1/13439: {characterised by their electrical, optical, physical properties; materials therefor; method of making} - G02F 2201/121: common or background - 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 display panel is disclosed, which includes: a first substrate; plural scan lines disposed on the first substrate and extending along a first direction; plural data lines disposed on the first substrate and extending along a second direction, wherein at least one pixel region is defined by the scan lines and the data lines, and the first direction and the second direction are different; a common electrode disposed in the pixel region; and a metal line electrically connecting to the common electrode and extending along the first direction, wherein the metal line has a first portion overlapping the common electrode and a second portion overlapping one of the data lines; wherein the first portion has a first maximum width along the second direction, the second portion has a second maximum with along the second direction, and the first maximum width is greater than the second maximum width. ## Claims ### Claim 1 A display device, comprising: a first substrate; a second substrate opposite to the first substrate; plural scan lines disposed on the first substrate and extending along a first direction; plural data lines disposed on the first substrate and extending along a second direction, wherein at least one pixel region is defined by the scan lines and the data lines, and the first direction and the second direction are different; a common electrode disposed in the pixel region; a metal line electrically connecting to the common electrode and extending along the first direction, wherein the metal line has a first portion and a second portion, the first portion partially overlaps the common electrode, and the second portion overlaps one of the data lines; and a black matrix layer disposed on the second substrate, wherein the black matrix layer has a light shielding region extending along the first direction, and the light shielding region covers the metal line; wherein the first portion has a first maximum width along the second direction, the second portion has a second maximum width along the second direction, and the first maximum width is greater than the second maximum width, wherein the metal lines has a metal edge closest to a shielding edge of the light shielding region, the shielding edge extends along the first direction, and a distance between the shielding edge and the metal edge is between 0 μm and the first maximum width. ### Claim 2 (depends on 1) The display device of claim 1, wherein the first maximum width is less than two times of the second maximum width. ### Claim 3 (depends on 1) The display device of claim 1, wherein a distance between the common electrode and one of the data lines adjacent thereto is between 2 μm and 10 μm. ### Claim 4 (depends on 1) The display device of claim 1, wherein a central line extending along the second direction in the pixel region is defined, the metal line has an overlapping region overlapping the common electrode, the overlapping region has a third width at the central line along the second direction, the metal line has a fourth width at the central line along the second direction, and a ratio of the third width to the fourth width is between 0.4:1 and 0.99:1. ### Claim 5 (depends on 1) The display device of claim 1, wherein the metal line has an overlapping region overlapping the common electrode, the overlapping region has a third width along the second direction, and a ratio of the third width to the first maximum with is between 0.4:1 and 0.99:1. ### Claim 6 (depends on 1) The display device of claim 1, wherein the metal line has an overlapping region overlapping the common electrode, the overlapping region has a third width along the second direction, the third width is less than two times of the second maximum width. ### Claim 7 (depends on 1) The display device of claim 1, wherein the black matrix layer further comprises a light transmitting region, the light transmitting region exposes the pixel region, and the light shielding region covers the scan lines and the data lines. ### Claim 8 (depends on 1) The display device of claim 1, wherein the black matrix layer further comprises a light transmitting region, the light transmitting region exposes the pixel region, and the light shielding region covers the scan lines and the data lines; wherein the metal line has a metal edge mostly closed to the shielding edge; wherein a central line extending along the second direction in the pixel region is defined, the metal line has a fourth width at the central line along the second direction, and a distance between the shielding edge and the metal edge is between 0 μm and the fourth width. ### Claim 9 (depends on 1) The display device of claim 1, further comprising a pixel electrode, wherein the pixel electrode is disposed in the pixel region; wherein the black matrix layer has a light transmitting region, the light transmitting region exposes the pixel electrode, and the light shielding region covers the scan lines and the data lines; wherein the first maximum width is represented by “A”, the pixel electrode has an electrode length along the second direction, the electrode length is represented by “B”, the light transmitting region has an opening length along the second direction, the opening length is represented by “C”, and the “A”, the “B” and the “C” satisfy Equations (I) and (II) below: 0.01B≤A≤0.1B [Equation (I)] 0.6B≤C≤0.99B. [Equation (II)] ### Claim 10 (depends on 1) The display device of claim 1, wherein the common electrode has an edge, and the metal line overlaps the edge. ### Claim 11 A display device, comprising: a first substrate; a second substrate opposite to the first substrate; plural scan lines disposed on the first substrate and extending along a first direction; plural data lines disposed on the first substrate and extending along a second direction, wherein at least one pixel region is defined by the scan lines and the data lines, and the first direction and the second direction are different; a common electrode disposed in the pixel region; a metal line electrically connecting to the common electrode and extending along the first direction, wherein the metal line has a first portion and a second portion, the second portion overlaps one of the data lines, the first portion is a region of the metal line excluding the second portion, and the first portion partially overlaps the common electrode; and a black matrix layer disposed on the second substrate, wherein the black matrix layer has a light shielding region extending along the first direction, and the light shielding region covers the metal line; wherein the first portion has a first maximum width along the second direction, the second portion has a second maximum width along the second direction, and the first maximum width is greater than the second maximum width, wherein the metal lines has a metal edge closest to a shielding edge of the light shielding region, the shielding edge extends along the first direction, and a distance between the shielding edge and the metal edge is between 0 μm and the first maximum width. ### Claim 12 (depends on 11) The display device of claim 11, wherein the first maximum width is less than two times of the second maximum width. ### Claim 13 (depends on 11) The display device of claim 11, wherein a distance between the common electrode and one of the data lines adjacent thereto is between 2 μm and 10 μm. ### Claim 14 (depends on 11) The display device of claim 11, wherein a central line extending along the second direction in the pixel region is defined, the metal line has an overlapping region overlapping the common electrode, the overlapping region has a third width at the central line along the second direction, the metal line has a fourth width at the central line along the second direction, and a ratio of the third width to the fourth width is between 0.4:1 and 0.99:1. ### Claim 15 (depends on 11) The display device of claim 11, wherein the metal line has an overlapping region overlapping the common electrode, the overlapping region has a third width along the second direction, and a ratio of the third width to the first maximum with is between 0.4:1 and 0.99:1. ### Claim 16 (depends on 11) The display device of claim 11, wherein the metal line has an overlapping region overlapping the common electrode, the overlapping region has a third width along the second direction, the third width is less than two times of the second maximum width. ### Claim 17 (depends on 11) The display device of claim 11, wherein the black matrix layer further comprises a light transmitting region, the light transmitting region exposes the pixel region, and the light shielding region covers the scan lines and the data lines. ### Claim 18 (depends on 11) The display device of claim 11, wherein the black matrix layer further comprises a light transmitting region, the light transmitting region exposes the pixel region, and the light shielding region covers the scan lines and the data lines; wherein the metal line has a metal edge mostly closed to the shielding edge; wherein a central line extending along the second direction in the pixel region is defined, the metal line has a fourth width at the central line along the second direction, and a distance between the shielding edge and the metal edge is between 0 μm and the fourth width. ### Claim 19 (depends on 11) The display device of claim 11, further comprising a pixel electrode, wherein the pixel electrode is disposed in the pixel region; wherein the black matrix layer has a light transmitting region, the light transmitting region exposes the pixel electrode, and the light shielding region covers the scan lines and the data lines; wherein the first maximum width is represented by “A”, the pixel electrode has an electrode length along the second direction, the electrode length is represented by “B”, the light transmitting region has an opening length along the second direction, the opening length is represented by “C”, and the “A”, the “B” and the “C” satisfy Equations (I) and (II) below: 0.01B≤A≤0.1B [Equation (I)] 0.6B≤C≤0.99B. [Equation (II)] ### Claim 20 (depends on 11) The display device of claim 11, wherein the common electrode has an edge, and the metal line overlaps the edge.