# US 11,444,143 B2 · AMOLED display panel and corresponding display device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,444,143 B2 - Document ID: US11444143B2 - Status: Granted - Kind: B2 - Application number: 17/460,312 - Filed: 2021-08-30 - Published: 2022-02-10 - Granted: 2022-09-13 - Earliest claimed: 2018-09-07 - Assignees: Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd. - Applicants: Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd. - Inventors: Mian Zeng; Liang Sun; Shoucheng Wang - Web page: https://patentgrep.com/patent/US11444143B2 ## CPC - H10K 59/1213: {the pixel elements being TFTs} - G09G 3/3233: with pixel circuitry controlling the current through the light-emitting element - H10K 59/131: Interconnections, e.g. wiring lines or terminals - H10K 59/353: {characterised by the geometrical arrangement of the RGB subpixels} - G09G 2300/0426: Layout of electrodes and connections - G09G 2300/0439: Pixel structures - G09G 2300/0452: Details of colour pixel setup, e.g. pixel composed of a red, a blue and two green components - 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 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 - H10D 86/421: {having a particular composition, shape or crystalline structure of the active layer} - H10D 86/60: wherein the TFTs are in active matrices - H10K 59/1216: {the pixel elements being capacitors} - 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) - H10D: INORGANIC ELECTRIC SEMICONDUCTOR DEVICES ## Abstract The present disclosure provides an active-matrix organic light-emitting diode (AMOLED) display panel and a display device. The AMOLED display panel includes a plurality of first pixel units and a plurality of second pixel units. The first pixel unit includes a first sub-pixel and a second sub-pixel. The present disclosure is achieved by the first sub-pixel and the second sub-pixel in the first pixel unit to share one of the data lines, and by another first sub-pixel and a third sub-pixel in the second pixel unit to share one of the data lines, such that a quantity of data lines and a quantity of fan-out wires are reduced, so as to reduce a size of a lower bezel. ## Claims ### Claim 1 An active-matrix organic light-emitting diode (AMOLED) display panel, comprising a plurality of first sub-pixels, a plurality of second sub-pixels and a plurality of third sub-pixels, wherein each of the plurality of first sub-pixels, the plurality of second sub-pixels, and the third sub-pixels comprises a light-emitting device and a pixel driving circuit, wherein the pixel driving circuit is disposed along a horizontal direction and along a vertical direction; wherein the pixel driving circuit comprises a driving transistor configured to determine a driving current of the pixel driving circuit; and wherein the driving transistor comprises a linear first active layer and a linear first gate disposed on the first active layer, the first active layer comprises a channel area overlapping with the first gate, and the channel area is straight-line-shaped; wherein the display panel further comprises a plurality of data lines and a plurality of gate lines connected to the plurality of first sub-pixels, the plurality of second sub-pixels and the plurality of third sub-pixels; wherein one of the plurality of first sub-pixels and one of the plurality of second sub-pixels are arranged along a direction in which the data lines extend, and one of the plurality of first sub-pixels and one of the plurality of second sub-pixels share one of the data lines; and wherein one of the plurality of first sub-pixels and one of the plurality of third sub-pixels are arranged along the direction in which the gate lines extend, and one of the plurality of first sub-pixels and one of the plurality of third sub-pixels share one of the gate lines; and wherein a size of the pixel driving circuit along the data line is less than a size of the pixel driving circuit along the gate line. ### Claim 2 (depends on 1) The AMOLED display panel as claimed in claim 1, wherein the first sub-pixel, the second sub-pixel, and the third sub-pixel are rectangular and have areas in equal, and a direction extending along a long side of each of of the plurality of first sub-pixels, the plurality of second sub-pixels, and the third sub-pixels is perpendicular to a direction in which the data lines extend; and wherein the channel area of the first active layer extends along the long side of each of the first sub-pixel, the second sub-pixel, and the third sub-pixel. ### Claim 3 (depends on 1) The AMOLED display panel as claimed in claim 1, wherein the pixel driving circuit is one of 7T1C, 6T1C, 6T2C, 5T1C, and 4T1C. ### Claim 4 (depends on 3) The AMOLED display panel as claimed in claim 3, wherein the pixel driving circuit is a 7T1C pixel driving circuit. ### Claim 5 (depends on 4) The AMOLED display panel as claimed in claim 4, wherein the 7T1C pixel driving circuit further comprises a capacitor for voltage compensation, the capacitor comprises a straight-strip-shaped lower electrode plate and a straight-strip-shaped upper electrode plate located over the straight-strip-shaped lower electrode plate, and the first gate is a portion of the straight-strip-shaped lower electrode plate. ### Claim 6 (depends on 3) The AMOLED display panel as claimed in claim 3, wherein the pixel driving circuit is a 7T1C pixel driving circuit, and the 7T1C pixel driving circuit comprises a transistor configured to control a reference signal transmitted to a control end of the driving transistor; and the transistor comprises a U-shaped second active layer and an oblique-line-shaped second gate disposed on the second active layer, the second active layer comprises two strip-shaped portions disposed in parallel, the second gate overlaps with the two strip-shaped portions, the second active layer comprises a first channel area in which the second gate obliquely overlaps with one of the strip-shaped portions, and a second channel area in which the second gate obliquely overlaps with the other of the strip-shaped portions, wherein the first channel area and the second channel area are oblique-line-shaped. ### Claim 7 A display device, comprising an active-matrix organic light-emitting diode (AMOLED) display panel, which comprises a plurality of first sub-pixels, a plurality of second sub-pixels and a plurality of third sub-pixels, wherein each of the plurality of first sub-pixels, the plurality of second sub-pixels, and the third sub-pixels comprises a light-emitting device and a pixel driving circuit, wherein the pixel driving circuit is disposed along a horizontal direction and along a vertical direction; wherein the pixel driving circuit comprises a driving transistor configured to determine a driving current of the pixel driving circuit; and wherein the driving transistor comprises a linear first active layer and a linear first gate disposed on the first active layer, the first active layer comprises a channel area overlapping with the first gate, and the channel area is straight-line-shaped; wherein the display panel further comprises a plurality of data lines and a plurality of gate lines connected to the plurality of first sub-pixels, the plurality of second sub-pixels and the plurality of third sub-pixels; wherein one of the plurality of first sub-pixels and one of the plurality of second sub-pixels are arranged along a direction in which the data lines extend, and one of the plurality of first sub-pixels and one of the plurality of second sub-pixels share one of the data lines; and wherein one of the plurality of first sub-pixels and one of the plurality of third sub-pixels are arranged along the direction in which the gate lines extend, and one of the plurality of first sub-pixels and one of the plurality of third sub-pixels share one of the gate lines; and wherein a size of the pixel driving circuit along the data line is less than a size of the pixel driving circuit along the gate line. ### Claim 8 (depends on 7) The display device as claimed in claim 7, wherein the first sub-pixel, the second sub-pixel, and the third sub-pixel are rectangular and have areas in equal; and an extending direction of a long side of each of the first sub-pixel, the second sub-pixel and the third sub-pixel is perpendicular to the extending direction of the data lines; and wherein the channel area of the first active layer extends along the long side of each of the first sub-pixel, the second sub-pixel, and the third sub-pixel. ### Claim 9 (depends on 7) The display device as claimed in claim 7, wherein the pixel driving circuit is one of 7T1C, 6T1C, 6T2C, 5T1C, and 4T1C. ### Claim 10 (depends on 9) The display device as claimed in claim 9, wherein the pixel driving circuit is a 7T1C pixel driving circuit. ### Claim 11 (depends on 10) The display device as claimed in claim 10, wherein the 7T1C pixel driving circuit further comprises a capacitor for voltage compensation, the capacitor comprises a straight-strip-shaped lower electrode plate and a straight-strip-shaped upper electrode plate located over the straight-strip-shaped lower electrode plate, and the first gate is a portion of the straight-strip-shaped lower electrode plate. ### Claim 12 (depends on 9) The display device as claimed in claim 9, wherein the pixel driving circuit is a 7T1C pixel driving circuit, and the 7T1C pixel driving circuit comprises a transistor configured to control a reference signal transmitted to a control end of the driving transistor; and the transistor comprises a U-shaped second active layer and an oblique-line-shaped second gate disposed on the second active layer, the second active layer comprises two strip-shaped portions disposed in parallel, the second gate overlaps with the two strip-shaped portions, the second active layer comprises a first channel area in which the second gate obliquely overlaps with one of the strip-shaped portions, and a second channel area in which the second gate obliquely overlaps with the other of the strip-shaped portions, wherein the first channel area and the second channel area are oblique-line-shaped.