# US 2026/0087983 A1 · Display device and electronic device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2026/0087983 A1 - Document ID: US20260087983A1 - Status: Published application - Kind: A1 - Application number: 19/192,034 - Filed: 2025-04-28 - Published: 2026-03-26 - Earliest claimed: 2024-09-20 - Assignees: Samsung Display Co., Ltd. - Applicants: Samsung Display Co., LTD. - Inventors: Kwi Hyun KIM; Se Hyun LEE - Web page: https://patentgrep.com/patent/US20260087983A1 ## CPC - G09G 3/3233: with pixel circuitry controlling the current through the light-emitting element - G09G 3/2007: {Display of intermediate tones} - G09G 2300/0426: Layout of electrodes and connections - G09G 2300/0804: Sub-multiplexed active matrix panel, i.e. wherein one active driving circuit is used at pixel level for multiple image producing elements - 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 - G09G 2320/0242: Compensation of deficiencies in the appearance of colours - G09G 2330/023: using energy recovery or conservation - G09G 2380/10: Automotive applications - 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) ## Abstract A display device includes: a first pixel including a first light emitting element which provides light of a first color; a second pixel including a second light emitting element which provides light of a second color different from the first color, a first emission line which is connected to the first pixel and transmits a first emission signal to the first pixel; and a second emission line which is connected to the second pixel and transmits a second emission signal to the second pixel, where a first pulse width of the first emission signal is smaller than a second pulse width of the second emission signal. ## Claims ### Claim 1 A display device comprising: a first pixel comprising a first light emitting element which provides light of a first color; a second pixel comprising a second light emitting element which provides light of a second color different from the first color; a first emission line which is connected to the first pixel and transmits a first emission signal to the first pixel; and a second emission line which is connected to the second pixel and transmits a second emission signal to the second pixel, wherein a first pulse width of the first emission signal is smaller than a second pulse width of the second emission signal. ### Claim 2 (depends on 1) The display device of claim 1, wherein the first color is red, and the second color is green. ### Claim 3 (depends on 1) The display device of claim 1, wherein a first data voltage corresponding to a same gray level and applied to the first pixel is greater than a second data voltage corresponding to the same gray level and applied to the second pixel. ### Claim 4 (depends on 3) The display device of claim 3, wherein an absolute value of a difference value between a reference voltage and the first data voltage is greater than an absolute value of a difference value between the reference voltage and the second data voltage. ### Claim 5 (depends on 4) The display device of claim 4, wherein the reference voltage is a voltage corresponding to a black gray level. ### Claim 6 (depends on 1) The display device of claim 1, wherein a first driving current corresponding to a same gray level and supplied to the first light emitting element is larger than a second driving current corresponding to a same gray level and supplied to the second light emitting element. ### Claim 7 (depends on 6) The display device of claim 6, wherein a peak value of the first driving current is greater than a peak value of the second driving current. ### Claim 8 (depends on 1) The display device of claim 1, further comprising: a first emission driver which provides the first emission signal to the first emission line; and a second emission driver which provides the second emission signal to the second emission line. ### Claim 9 (depends on 1) The display device of claim 1, wherein the first pixel comprises: a first transistor comprising a source electrode connected to a first node, a drain electrode connected to a second node, and a gate electrode connected to a third node; a fifth transistor comprising a gate electrode connected to the first emission line, a source electrode connected to a driving voltage line, and a drain electrode connected to the first node; and a sixth transistor comprising a gate electrode connected to the first emission line, a source electrode connected to the second node, and a drain electrode connected to an anode of the first light emitting element. ### Claim 10 (depends on 9) The display device of claim 9, wherein the first pixel further comprises: a second transistor comprising a gate electrode connected to a first gate line, a source electrode connected to a first data line, and a drain electrode connected to the first node; a third transistor comprising a gate electrode connected to a second gate line, a source electrode connected to the third node, and a drain electrode connected to the second node; a fourth transistor comprising a gate electrode connected to a third gate line, a drain electrode connected to the third node, and a source electrode connected to a first initialization voltage line; a seventh transistor comprising a gate electrode connected to a fourth gate line, a source electrode connected to the anode of the first light emitting element, and a drain electrode connected to a second initialization voltage line; and a capacitor connected between the driving voltage line and the third node. ### Claim 11 (depends on 10) The display device of claim 10, wherein the first pixel further comprises an eighth transistor comprising a gate electrode connected to the fourth gate line, a source electrode connected to a bias voltage line, and a drain electrode connected to the first node. ### Claim 12 (depends on 11) The display device of claim 11, wherein each of the first transistor, the second transistor, the fifth transistor, the sixth transistor, the seventh transistor and the eighth transistor of the first pixel is a p-type transistor, and each of the third transistor and the fourth transistor of the first pixel is an n-type transistor. ### Claim 13 (depends on 1) The display device of claim 1, wherein the second pixel comprises: a first transistor comprising a source electrode connected to a first node, a drain electrode connected to a second node, and a gate electrode connected to a third node; a fifth transistor comprising a gate electrode connected to the second emission line, a source electrode connected to a driving voltage line, and a drain electrode connected to the first node; and a sixth transistor comprising a gate electrode connected to the second emission line, a source electrode connected to the second node, and a drain electrode connected to an anode of the second light emitting element. ### Claim 14 (depends on 13) The display device of claim 13, wherein the second pixel further comprises: a second transistor comprising a gate electrode connected to a first gate line, a source electrode connected to a second data line, and a drain electrode connected to the first node; a third transistor comprising a gate electrode connected to a second gate line, a source electrode connected to the third node, and a drain electrode connected to the second node; a fourth transistor comprising a gate electrode connected to a third gate line, a drain electrode connected to the third node, and a source electrode connected to a first initialization voltage line; a seventh transistor comprising a gate electrode connected to a fourth gate line, a source electrode connected to the anode of the second light emitting element, and a drain electrode connected to a second initialization voltage line; and a capacitor connected between the driving voltage line and the third node. ### Claim 15 (depends on 14) The display device of claim 14, wherein the second pixel further comprises an eighth transistor comprising a gate electrode connected to the fourth gate line, a source electrode connected to a bias voltage line, and a drain electrode connected to the first node. ### Claim 16 (depends on 15) The display device of claim 15, wherein each of the first transistor, the second transistor, the fifth transistor, the sixth transistor, the seventh transistor and the eighth transistor of the second pixel is a p-type transistor, and each of the third transistor and the fourth transistor of the second pixel is an n-type transistor. ### Claim 17 (depends on 1) The display device of claim 1, further comprising: a third pixel comprising a third light emitting element which provides light of a third color different from the first color and the second color; and a third emission line which is connected to the third pixel and transmits a third emission signal to the third pixel, wherein a third pulse width of the third emission signal is greater than the first pulse width and smaller than the second pulse width. ### Claim 18 (depends on 17) The display device of claim 17, wherein the first color is red, the second color is blue, and the third color is green. ### Claim 19 (depends on 17) The display device of claim 17, wherein a third data voltage corresponding to a same gray level and applied to the third pixel is smaller than a first data voltage corresponding to a same gray level and applied to the first pixel and greater than a second data voltage corresponding to a same gray level and applied to the second pixel, wherein an absolute value of a difference value between a reference voltage and the third data voltage is smaller than the absolute value of the difference value between the reference voltage and the first data voltage and greater than the absolute value of the difference value between the reference voltage and the second data voltage. ### Claim 20 An electronic device comprising: a display device which displays an image, wherein the display device comprising: a first pixel comprising a first light emitting element which provides light of a first color; a second pixel comprising a second light emitting element which provides light of a second color different from the first color; a first emission line which is connected to the first pixel and transmits a first emission signal to the first pixel; and a second emission line which is connected to the second pixel and transmits a second emission signal to the second pixel, wherein a first pulse width of the first emission signal is smaller than a second pulse width of the second emission signal.