# US 2019/0355802 A1 · Electroluminescence display > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0355802 A1 - Document ID: US20190355802A1 - Status: Published application - Kind: A1 - Application number: 16/413,268 - Filed: 2019-05-15 - Published: 2019-11-21 - Earliest claimed: 2018-05-16 - Assignees: LG Display Co., Ltd. - Applicants: LG Display Co., Ltd. - Inventors: Jongsik Shim; Byeonguk Gang; Seonghwan Hwang - Web page: https://patentgrep.com/patent/US20190355802A1 ## CPC - G09G 3/3233: with pixel circuitry controlling the current through the light-emitting element - H10K 59/131: Interconnections, e.g. wiring lines or terminals - G09G 3/3225: using an active matrix - H10K 59/121: characterised by the geometry or disposition of pixel elements - H10K 59/1213: {the pixel elements being TFTs} - G09G 2300/0426: Layout of electrodes and connections - G09G 2300/0465: Improved aperture ratio, e.g. by size reduction of the pixel circuit, e.g. for improving the pixel density or the maximum displayable luminance or brightness - G09G 2310/0262: The addressing of the pixel, in a display other than an active matrix LCD, involving the control of two or more scan electrodes or two or more data electrodes, e.g. pixel voltage dependent on signals of two data electrodes - G09G 2320/029: by monitoring one or more pixels in the display panel, e.g. by monitoring a fixed reference pixel - G09G 2320/045: Compensation of drifts in the characteristics of light emitting or modulating elements - G09G 2330/02: Details of power systems and of start or stop of display operation - H10K 59/351: {comprising more than three subpixels, e.g. red-green-blue-white [RGBW]} - G09G: ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION (arrangements for transferring data between digital computers and displays G06F3/14; static indicating arrangements comprising an association of a number of separate sources or light control cells G09F9/00; static indicating arrangements comprising integral associations of a number of light sources H01J, H01K, H10H, H05B33/12; scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission, details thereof H04N1/00) - H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES ## Abstract An electroluminescence display includes a plurality of sub-pixels, each of the plurality of sub-pixels including a light emission region, and a first circuit region and a second circuit region disposed on respective sides of the light emission region. Power supply lines are configured to supply a first power to at least one of the second circuit regions of the sub-pixels arranged at odd-numbered row and the first circuit regions of the sub-pixels arranged at an even-numbered row. A sensing line is configured to supply an initialization voltage or a sensing voltage to at least one of the first circuit regions of the sub-pixels arranged at the odd-numbered row and the second circuit regions of the sub-pixels arranged in the even-numbered row. ## Claims ### Claim 1 An electroluminescence display, comprising: a plurality of sub-pixels arranged in rows, each of the plurality of sub-pixels including a light emission region, and a first circuit region and a second circuit region disposed on respective sides of the light emission region; power supply lines configured to supply a first power to at least one of the second circuit regions of the sub-pixels arranged at an odd-numbered row and the first circuit regions of the sub-pixels arranged at an even-numbered row; and a sensing line configured to supply an initialization voltage or a sensing voltage to at least one of the first circuit regions of the sub-pixels arranged at the odd-numbered row or the second circuit regions of the sub-pixels arranged in the even-numbered row. ### Claim 2 (depends on 1) The electroluminescence display of claim 1, wherein the plurality of sub-pixels includes a first, a second, a third and a fourth sub-pixel, and wherein the power supply lines include: a first power supply line disposed at a left side of the first sub-pixel, and configured to supply a first power to the second circuit regions of the first and second sub-pixels disposed at the odd-numbered rows, and configured to supply the first power to the first circuit regions of the first and second sub-pixels disposed at the even-numbered rows; and a second power supply line disposed at a right side of the fourth sub-pixel, and configured to supply the first power to the second circuit regions of the third and fourth sub-pixels disposed at the odd-numbered rows, and configured to supply the first power to the first circuit regions of the third and fourth sub-pixels disposed at the even-numbered row. ### Claim 3 (depends on 2) The electroluminescence display of claim 2, wherein the first power supply line includes: a first horizontal power supply branch line connected to the first power supply line and extending along a row direction; and a first vertical power supply branch line extending from the first horizontal power supply branch line along a column direction, wherein the second power supply line includes: a second horizontal power supply branch line connected to the second power supply line and extending along the row direction; and a second vertical power supply branch line extending from the second horizontal power supply branch line along the column direction. ### Claim 4 (depends on 3) The electroluminescence display of claim 3, wherein the sensing line includes: a first horizontal sensing branch line connected to the sensing line and extending toward the first power supply line along the row direction; a first vertical sensing branch line extending from the first horizontal sensing branch line along the column direction; a second horizontal sensing branch line connected to the sensing line and extending toward the second power supply line along the row direction; and a second vertical sensing branch line extending from the second horizontal sensing branch line along the column direction. ### Claim 5 (depends on 4) The electroluminescence display of claim 4, wherein each of the first circuit regions of the sub-pixels disposed at the odd-numbered rows includes a sensing thin film transistor, wherein each of the second circuit regions of the sub-pixels disposed at the odd-numbered rows includes a driving thin film transistor, and wherein each of the second circuit regions of the sub-pixels disposed at the even-numbered rows includes a sensing thin film transistor, wherein each of the first circuit regions of the sub-pixels disposed at the even-numbered rows includes a driving thin film transistor. ### Claim 6 (depends on 5) The electroluminescence display of claim 5, wherein the first vertical power supply branch line is connected to the driving thin film transistors of the first and second sub-pixels disposed on at least one side of upper and lower sides of the first horizontal power supply branch line, and wherein the second vertical power supply branch line is connected to the driving thin film transistors of the third and fourth sub-pixels disposed on at least one side of upper and lower sides of the second horizontal power supply branch line. ### Claim 7 (depends on 5) The electroluminescence display of claim 5, wherein the first vertical sensing branch line is connected to the sensing thin film transistors of the first and second sub-pixels disposed on at least one side of upper and lower sides of the first horizontal sensing branch line, and wherein the second vertical sensing branch line is connected to the sensing thin film transistors of the third and fourth sub-pixels disposed on at least one side of upper and lower sides of the second horizontal sensing branch line. ### Claim 8 (depends on 5) The electroluminescence display of claim 5, further comprising: a first and second data lines disposed between the first sub-pixel and the second sub-pixel, and extending in parallel with each other along the column direction; and a third and fourth data lines disposed between the third sub-pixel and the fourth sub-pixel, and extending in parallel with each other along the column direction, wherein the first circuit region of each the first to fourth sub-pixels disposed at the odd-numbered row and the second circuit region of each the first to fourth sub-pixels disposed at the even-numbered row include a switching thin film transistor, respectively, the first data line is connected to the switching thin film transistor of the first sub-pixel; the second data line is connected to the switching thin film transistor of the second sub-pixel; the third data line is connected to the switching thin film transistor of the third sub-pixel; and the fourth data line is connected to the switching thin film transistor of the fourth sub-pixel. ### Claim 9 (depends on 8) The electroluminescence display of claim 8, further comprising a first scan line and a second scan line disposed at one side of the sub-pixels disposed at one row and extending in parallel with each other along the row direction, wherein the first scan line is connected to a gate electrode of the sensing thin film transistor, and the second scan line is connected to a gate electrode of the switching thin film transistor. ### Claim 10 (depends on 8) The electroluminescence display of claim 8, wherein the light emission region includes a transparent storage capacitor having a first electrode connected to a drain electrode of the sensing thin film transistor and a second electrode connected to a drain electrode of the switching thin film transistor. ### Claim 11 (depends on 1) The electroluminescence display of claim 1, further comprising a storage capacitor having a first electrode and a second electrode facing each other with an insulating layer interposed therebetween in the light emission region. ### Claim 12 An electroluminescence display, comprising: a substrate including a plurality of a light emission regions, and first circuit regions and second circuit regions disposed at respective sides of the light emission regions; power supply lines, a sensing line and data lines arranged along a row direction and extending along a column direction outside the light emission regions; a semiconductor layer disposed on a buffer layer covering the power supply lines, the sensing line and the data lines to expose a portion of the power supply lines, sensing line and data lines; scan lines, branch lines and thin film transistors disposed on a gate insulating layer covering the semiconductor layer to expose a portion of the semiconductor layer, and disposed in the first and second circuit regions; color filters disposed to correspond to the light emission regions on a passivation layer covering the scan lines, the branch lines and the thin film transistors; and organic light emitting diodes disposed on an overcoat layer covering the color filters, each of the organic light emitting diodes being connected to one of the transistors via a contact hole passing through the overcoat layer and the passivation layer. ### Claim 13 (depends on 12) The electroluminescence display of claim 12, wherein the thin film transistors include a sensing thin film transistor, a switching thin film transistor, and a driving thin film transistor disposed in the first and second circuit regions, wherein a first and second light shielding patterns are disposed in each of first circuit regions related to light emission regions disposed at an odd-numbered rows so that the first light shielding pattern corresponds to a sensing thin film transistor disposed in the first circuit region of the odd-numbered rows, and the second light shielding pattern corresponds to a switching thin film transistor disposed in the first circuit region of the odd-numbered rows, and a third light shielding pattern is disposed in each of second circuit regions related to the light emission regions disposed at the odd-numbered rows so that the third light shielding pattern corresponds to driving thin film transistors disposed in the second circuit region of the odd-numbered rows, and wherein a fourth light shielding pattern is disposed in each of first circuit regions related to light emission regions disposed at an even-numbered rows so that the fourth light shielding pattern corresponds to a driving thin film transistor disposed in the first circuit region of the even-numbered row, and a fifth and sixth light shielding patterns are disposed in each of second circuit regions related to light emission regions disposed in the even-numbered rows so that the fifth light shielding pattern corresponds to a sensing thin film transistors disposed in the second circuit region of the even-numbered row and the sixth light shielding pattern corresponds to switching thin film transistors disposed in the second circuit region of the even-numbered row. ### Claim 14 (depends on 13) The electroluminescence display of claim 13, wherein a first electrode of a storage capacitor is disposed in each of the light emission regions, the first electrode being disposed on the same layer as the power supply lines, the sensing line and the data lines. ### Claim 15 (depends on 14) The electroluminescence display of claim 14, wherein each of the power supply lines, the sensing line and the data lines includes a transparent conductive layer on the substrate and a metal layer disposed on the transparent conductive layer, and wherein the first electrode of the storage capacitor includes the transparent conductive layer. ### Claim 16 (depends on 13) The electroluminescence display of claim 13, wherein the power supply lines include a first power supply line and a second power supply line arranged in parallel with each other: wherein the first power supply line includes: a first horizontal power supply branch line connected to the first power supply line and extending along a row direction; and a first vertical power supply branch line extending from the first horizontal power supply branch line along a column direction, wherein the second power supply line includes: a second horizontal power supply branch line connected to the second power supply line and extending along the row direction; and a second vertical power supply branch line extending from the second horizontal power supply branch line along the column direction. ### Claim 17 (depends on 13) The electroluminescence display of claim 13, wherein the power supply lines include a first power supply line and a second power supply line arranged in parallel with each other: wherein the sensing line includes: a first horizontal sensing branch line connected to the sensing line and extending toward the first power supply line along the row direction; a first vertical sensing branch line extending from the first horizontal sensing branch line along the column direction; a second horizontal sensing branch line connected to the sensing line and extending toward the second power supply line along the row direction; and a second vertical sensing branch line extending from the second horizontal sensing branch line along the column direction. ### Claim 18 (depends on 16) The electroluminescence display of claim 16, wherein the first vertical power supply branch line is connected to the driving thin film transistors of the first and second sub-pixels disposed on at least one side of upper and lower sides of the first horizontal power supply branch line, and wherein the second vertical power supply branch line is connected to the driving thin film transistors of the third and fourth sub-pixels disposed on at least one side of upper and lower sides of the second horizontal power supply branch line. ### Claim 19 (depends on 17) The electroluminescence display of claim 17, wherein the first vertical sensing branch line is connected to the sensing thin film transistors of the first and second sub-pixels disposed on at least one side of upper and lower sides of the first horizontal sensing branch line, and wherein the second vertical sensing branch line is connected to the sensing thin film transistors of the third and fourth sub-pixels disposed on at least one side of upper and lower sides of the second horizontal sensing branch line.