# US 12,604,626 B2 · Display apparatus including branch electrodes connecting gate lines to gate electrodes > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,604,626 B2 - Document ID: US12604626B2 - Status: Granted - Kind: B2 - Application number: 18/890,324 - Filed: 2024-09-19 - Published: 2025-07-31 - Granted: 2026-04-14 - Earliest claimed: 2024-01-30 - Assignees: Samsung Display Co., Ltd. - Applicants: Samsung Display Co., Ltd. - Inventors: Byungchang Yu; Jangmi Kang; Minkyu Woo; Geunho Lee - Web page: https://patentgrep.com/patent/US12604626B2 ## CPC - H10K 59/131: Interconnections, e.g. wiring lines or terminals - G09G 3/3233: with pixel circuitry controlling the current through the light-emitting element - H10K 59/88: Dummy elements, i.e. elements having non-functional features - G02F 1/134309: {characterised by their geometrical arrangement} - G02F 1/136227: {Through-hole connection of the pixel electrode to the active element through an insulation layer} - G09G 2300/0413: Details of dummy pixels or dummy lines in flat panels - G09G 2300/0426: Layout of electrodes and connections - G09G 2300/0819: used for counteracting undesired variations, e.g. feedback or autozeroing - G09G 2300/0842: forming a memory circuit, e.g. a dynamic memory with one capacitor - G09G 2300/0861: with additional control of the display period without amending the charge stored in a pixel memory, e.g. by means of additional select electrodes - G09G 2310/08: Details of timing specific for flat panels, other than clock recovery - G09G 2320/0233: Improving the luminance or brightness uniformity across the screen - H10K 59/35: comprising red-green-blue [RGB] subpixels - H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES - 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) - 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 apparatus includes a first pixel circuit including a first driving transistor and a first data-write transistor. A second pixel circuit includes a second driving transistor and a second data-write transistor. A first gate line and a second gate line each extend primarily in a first direction. A first data line extends primarily in a second direction crossing the first direction and is configured to transfer a first data signal to the first data-write transistor, a second data line extending primarily in the second direction and is configured to transfer a second data signal to the second data-write transistor. A first branch electrode electrically connects the first gate line to a gate electrode of the first data-write transistor. A second branch electrode electrically connects the second gate line to a gate electrode of the second data-write transistor. ## Claims ### Claim 1 A display apparatus, comprising: a first pixel circuit including a first driving transistor and a first data-write transistor; a second pixel circuit including a second driving transistor and a second data-write transistor; a first gate line and a second gate line each extending primarily in a first direction; a first data line extending primarily in a second direction crossing the first direction and configured to transfer a first data signal to the first data-write transistor; a second data line extending primarily in the second direction and configured to transfer a second data signal to the second data-write transistor; a first branch electrode electrically connecting the first gate line to a gate electrode of the first data-write transistor; and a second branch electrode electrically connecting the second gate line to a gate electrode of the second data-write transistor, wherein the first pixel circuit and the second pixel circuit are adjacent to each other in the first direction. ### Claim 2 (depends on 1) The display apparatus of claim 1, further comprising: a data driver configured to output data signals through a first output line; a data switch including a first switch and a second switch, wherein the first switch connects the first output line to the first data line in response to a first control signal, and the second switch connects the first output line to the second data line in response to a second control signal; and a controller configured to alternately output the first control signal and the second control signal for each line time of one frame. ### Claim 3 (depends on 2) The display apparatus of claim 2, wherein a first gate signal applied to the first gate line is synchronized with the first control signal, and a second gate signal applied to the second gate line is synchronized with the second control signal. ### Claim 4 (depends on 2) The display apparatus of claim 2, wherein the data driver is configured to output a first data signal in synchronization with an output timing of the first control signal and output a second data signal in synchronization with an output timing of the second control signal. ### Claim 5 (depends on 1) The display apparatus of claim 1, further comprising: a third pixel circuit adjacent to the first pixel circuit in the second direction and sharing the first data line with the first pixel circuit; a fourth pixel circuit adjacent to the second pixel circuit in the second direction, sharing the second data line with the second pixel circuit, and arranged in a same row as the third pixel circuit; a first light-emitting diode electrically connected to the first pixel circuit; a second light-emitting diode electrically connected to the second pixel circuit; a third light-emitting diode electrically connected to the third pixel circuit; and a fourth light-emitting diode electrically connected to the fourth pixel circuit, wherein the first light-emitting diode is configured to emit light of a same color as the third light-emitting diode, and the second light-emitting diode is configured to emit light of a same color as the fourth light-emitting diode. ### Claim 6 (depends on 5) The display apparatus of claim 5, wherein the first light-emitting diode and the third light-emitting diode are configured to emit light of a first color, and the second light-emitting diode and the fourth light-emitting diode are configured to emit light of a second color that is different from the first color. ### Claim 7 (depends on 6) The display apparatus of claim 6, wherein an emission area of the first light-emitting diode overlaps the first pixel circuit, and an emission area of the second light-emitting diode overlaps the second pixel circuit, and wherein an emission area of the third light-emitting diode is spaced apart from the third pixel circuit, and an emission area of the fourth light-emitting diode is spaced apart from the fourth pixel circuit. ### Claim 8 (depends on 7) The display apparatus of claim 7, wherein each of the first light-emitting diode, the second light-emitting diode, the third light-emitting diode, and the fourth light-emitting diode includes a pixel electrode including a body and a connector extending from the body to a corresponding pixel circuit, wherein a pixel electrode of the first light-emitting diode further includes a first dummy portion corresponding to a shape of a connector of the third light-emitting diode, and wherein a pixel electrode of the second light-emitting diode further includes a second dummy portion corresponding to a shape of a connector of the fourth light-emitting diode. ### Claim 9 (depends on 5) The display apparatus of claim 5, wherein the first light-emitting diode and the second light-emitting diode are each configured to emit light of a third color. ### Claim 10 (depends on 9) The display apparatus of claim 9, wherein an emission area of the first light-emitting diode overlaps the first pixel circuit, an emission area of the second light-emitting diode is spaced apart from the second pixel circuit, and wherein an emission area of the third light-emitting diode is spaced apart from the third pixel circuit, and an emission area of the fourth light-emitting diode overlaps the fourth pixel circuit. ### Claim 11 (depends on 10) The display apparatus of claim 10, wherein each of the first light-emitting diode, the second light-emitting diode, the third light-emitting diode, and the fourth light-emitting diode includes a pixel electrode including a body and a connector extending from the body to a corresponding pixel circuit, wherein a pixel electrode of the first light-emitting diode further includes a first dummy portion corresponding to a shape of a connector of the second light-emitting diode, and wherein a pixel electrode of the fourth light-emitting diode further includes a second dummy portion corresponding to a shape of a connector of the third light-emitting diode. ### Claim 12 (depends on 5) The display apparatus of claim 5, wherein the third pixel circuit includes a third driving transistor, a third data-write transistor, and a first initialization transistor connected between the third driving transistor and an initialization voltage line, wherein the fourth pixel circuit includes a fourth driving transistor, a fourth data-write transistor, and a second initialization transistor connected between the fourth driving transistor and the initialization voltage line, wherein the first branch electrode electrically connects the first gate line to a gate electrode of the first initialization transistor, and wherein the second branch electrode electrically connects the second gate line to a gate electrode of the second initialization transistor. ### Claim 13 (depends on 12) The display apparatus of claim 12, wherein the gate electrode of the first initialization transistor and the gate electrode of the second initialization transistor are disposed between the first gate line and the second gate line. ### Claim 14 (depends on 12) The display apparatus of claim 12, wherein the gate electrode of the first data-write transistor, the gate electrode of the second data-write transistor, the gate electrode of the first initialization transistor, and the gate electrode of the second initialization transistor each have an island shape. ### Claim 15 (depends on 1) The display apparatus of claim 1, wherein the second gate line has a zigzag shape. ### Claim 16 (depends on 15) The display apparatus of claim 15, wherein a resistance of the first gate line is equal to a resistance of the second gate line. ### Claim 17 A display apparatus, comprising: a first semiconductor layer including a first semiconductor pattern and a second semiconductor pattern spaced apart from each other in a first direction and symmetrical with respect to each other about a virtual line extending in a second direction crossing the first direction; a first conductive layer disposed on the first semiconductor layer and including a first gate electrode and a second gate electrode, wherein the first gate electrode overlaps the first semiconductor pattern and the second gate electrode overlaps the second semiconductor pattern; a second conductive layer disposed on the first conductive layer and including a first gate line and a second gate line each extending primarily in the first direction; a second semiconductor layer disposed on the second conductive layer; a third conductive layer disposed on the second semiconductor layer; a fourth conductive layer disposed on the third conductive layer and including a first branch electrode and a second branch electrode, wherein the first branch electrode electrically connects the first gate line to the first gate electrode, and the second branch electrode electrically connects the second gate line to the second gate electrode; and a fifth conductive layer disposed on the fourth conductive layer and including a first data line and a second data line each extending primarily in the second direction. ### Claim 18 (depends on 17) The display apparatus of claim 17, further comprising: a data driver configured to output data signals through a first output line; a data switch including a first switch and a second switch, wherein the first switch connects the first output line to the first data line in response to a first control signal, and the second switch connects the first output line to the second data line in response to a second control signal; and a controller configured to alternately output the first control signal and the second control signal for each line time of one frame. ### Claim 19 (depends on 18) The display apparatus of claim 18, wherein a first gate signal applied to the first gate line is synchronized with the first control signal, and a second gate signal applied to the second gate line is synchronized with the second control signal. ### Claim 20 (depends on 17) The display apparatus of claim 17, wherein the second gate line has a zigzag shape. ### Claim 21 (depends on 20) The display apparatus of claim 20, wherein a resistance of the first gate line is equal to a resistance of the second gate line. ### Claim 22 (depends on 17) The display apparatus of claim 17, further comprising a fifth conductive layer disposed on the fourth conductive layer and including a first pixel electrode electrically connected to the first semiconductor pattern and a second pixel electrode electrically connected to the second semiconductor pattern, wherein, when the first pixel electrode overlaps the first semiconductor pattern, the first pixel electrode includes a body, a connector extending from the body, and a dummy portion. ### Claim 23 (depends on 22) The display apparatus of claim 22, wherein the fourth conductive layer further includes a driving voltage line extending primarily in the second direction, and the first pixel electrode overlaps the driving voltage line. ### Claim 24 (depends on 23) The display apparatus of claim 23, wherein the second pixel electrode includes a body and a connector extending from the body, and the driving voltage line includes a shield overlapping the connector of the first pixel electrode. ### Claim 25 A display apparatus, comprising: a first data line and a second data line each extending primarily in a first direction; a first pixel circuit electrically connected to the first data line; a second pixel circuit electrically connected to the second data line; a first pixel electrode including a first body and a first connector extending from the first body and electrically connected to the first pixel circuit; and a second pixel electrode including a second body, a second connector extending from the second body and electrically connected to the second pixel circuit, and a first dummy portion having a shape corresponding to at least a portion of the first connector, wherein the first pixel circuit and the second pixel circuit are adjacent to each other in the first direction. ### Claim 26 (depends on 25) The display apparatus of claim 25, further comprising: a third pixel circuit electrically connected to the first data line; a fourth pixel circuit electrically connected to the second data line; a third pixel electrode including a third body, a third connector extending from the third body and electrically connected to the third pixel circuit, and a second dummy portion; and a fourth pixel electrode including a fourth body and a fourth connector extending from the fourth body and electrically connected to the fourth pixel circuit, wherein the second dummy portion has a shape corresponding to at least a portion of the fourth connector. ### Claim 27 (depends on 26) The display apparatus of claim 26, wherein a shape of the first pixel electrode and a shape of the fourth pixel electrode are symmetrical with respect to each other about a virtual line extending in the first direction, and wherein a shape of the second pixel electrode and a shape of the third pixel electrode are symmetrical with respect to each other about the virtual line. ### Claim 28 A display apparatus, comprising: a first data line extending primarily in a first direction; a first pixel circuit and a second pixel circuit each electrically connected to the first data line and adjacent to each other in the first direction; a first pixel electrode including a first body and a first connector extending from the first body and electrically connected to the first pixel circuit; and a second pixel electrode including a second body, a second connector extending from the second body and electrically connected to the second pixel circuit, and a first dummy portion having a shape corresponding to at least a portion of the first connector. ### Claim 29 (depends on 28) The display apparatus of claim 28, wherein the first body of the first pixel electrode and the second body of the second pixel electrode are arranged in a staggered manner with respect to a virtual line extending in the first direction.