# US 12,111,541 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 12,111,541 B2 - Document ID: US12111541B2 - Status: Granted - Kind: B2 - Application number: 17/053,349 - Filed: 2019-11-11 - Published: 2023-03-30 - Granted: 2024-10-08 - Earliest claimed: 2019-06-27 - Assignees: Xiamen Tianma Micro-Electronics Co., Ltd. - Applicants: Xiamen Tianma Micro-Electronics Co., Ltd. - Inventors: Yan Yang; Ling Wu; Boping Shen - Web page: https://patentgrep.com/patent/US12111541B2 ## CPC - G02F 1/133601: {for spatial active dimming} - G02F 1/133612: {Electrical details} - G02F 1/133531: {characterised by the arrangement of polariser or analyser axes} - G02F 1/134309: {characterised by their geometrical arrangement} - G02F 1/134336: {Matrix} - G09G 3/3426: {the different display panel areas being distributed in two dimensions, e.g. matrix} - G09G 3/3648: {using an active matrix (G09G3/367 - G09G3/3696 take precedence)} - G02F 2201/123: pixel - G09G 2300/023: Display panel composed of stacked panels - G09G 2300/0426: Layout of electrodes and connections - G09G 2320/0238: Improving the black level - G09G 2320/0646: Modulation of illumination source brightness and image signal correlated to each other - G09G 2330/021: Power management, e.g. power saving - 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 - 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 The present disclosure discloses a display device. The display device includes a first display structure, a second display structure and a backlight device. The first display structure includes first pixels arranged in an array, the first pixels are divided into multiple dimming areas, and each dimming area includes at least one first pixel. The first display structure is for adjusting the transmittance of each dimming area for lights emitted by the backlight device according to an image to be displayed in the next frame of the second display structure. ## Claims ### Claim 1 A display device, comprising: a backlight device, a first display structure located above a light-emitting surface of the backlight device, and a second display structure located above a side, away from the backlight device, of the first display structure; wherein the first display structure and the second display structure are opposite to each other; the first display structure comprises first pixels arranged in an array; the second display structure comprises second pixels arranged in an array; and an area of orthographic projections of the first pixels on a light-emitting surface of the display device is larger than an area of orthographic projections of the second pixels on the light-emitting surface of the display device; wherein each of the second pixels comprises a second pixel electrode; each of the first pixels comprises: multiple first pixel electrodes which are axisymmetric; or multiple first pixel electrodes which are centrosymmetric; and wherein the first pixels are divided into multiple dimming areas, each of the multiple dimming areas comprises at least one of the first pixels; and the first display structure is for adjusting a transmittance of each of the multiple dimming areas for lights emitted by the backlight device according to an image to be displayed in a next frame of the second display structure; wherein the first display structure comprises a first display area and a second display area surrounding the first display area; and the multiple dimming areas comprise multiple first subareas and multiple second subareas; and wherein the multiple first subareas are located in the first display area, and the multiple second subareas are located in the second display area; and an area of the multiple second subareas is smaller than an area of the multiple first subareas; wherein the first pixel electrode of the first display structure and second pixel electrode of the second display structure each comprises a first section and multiple second sections, and the multiple second sections are electrically connected to the first section, and wherein the first section extends in a first direction, and the multiple second sections are arranged in the first direction, and the multiple second sections are arranged at intervals; and wherein each of the multiple second sections comprises a first segment, a second segment and a third segment which are connected, the first segment is electrically connected to the first section, the second segment is arranged between the first segment and the third segment, and the first segment extends in a first sub-direction, the second segment extends in a second sub-direction, and the third segment extends in a third sub-direction; and wherein the first direction is a row direction, the second sub-direction is a column direction, and the first sub-direction and the third sub-direction are parallel to each other and intersect respectively with the row direction and the column direction; or wherein the first direction is a column direction, the second sub-direction is a row direction, and the first sub-direction and the third sub-direction are parallel to each other and intersect respectively with the row direction and the column direction. ### Claim 2 (depends on 1) The display device of claim 1, wherein the first display structure comprises: multiple gate lines extending in a row direction and arranged in a column direction, and multiple data lines extending in a column direction and arranged in a row direction; the multiple dimming areas are arranged in an array, and each of the multiple dimming areas comprises multiple first pixels; and the multiple first pixels comprise transistors corresponding to first pixel electrodes; and in a same dimming area: first pixel electrodes of every two adjacent first pixels in a row direction are electrically connected to a same data line through correspondingly arranged transistors, and first pixel electrodes of every two adjacent first pixels in a column direction are electrically connected to a same gate line through correspondingly arranged transistors. ### Claim 3 (depends on 1) The display device of claim 1, wherein the first display structure comprises: multiple gate lines extending in a row direction and arranged in a column direction, and multiple data lines extending in a column direction and arranged in a row direction; for each of the first pixels, wherein: each of the first pixels comprises multiple first pixel electrodes, and is internally provided with a connecting line electrically connected to the multiple first pixel electrodes, and a transistor; the connecting line and the multiple first pixel electrodes are arranged in different layers; and a gate of the transistor is electrically connected to a corresponding gate line, a source of the transistor is electrically connected to a corresponding data line, and a drain of the transistor is electrically connected to the connecting line. ### Claim 4 (depends on 3) The display device of claim 3, wherein: the connecting line is made of a same material as one or more of: the source and the drain of the transistor; and the connecting line is arranged in a same layer as one or more of: the source and the drain of the transistor. ### Claim 5 (depends on 1) The display device of claim 1, wherein: the multiple first subareas are square, or an orthographic projection of the first display structure on the light-emitting surface of the display device is rectangular, and a length-width ratio of each of the multiple first subareas is equal to that of the first display structure; and the multiple second subareas are rectangular. ### Claim 6 (depends on 1) The display device of claim 1, wherein the first display structure and the second display structure are both liquid crystal display panels; and a transparent adhesive layer is arranged between the first display structure and the second display structure. ### Claim 7 (depends on 1) The display device of claim 1, wherein the display device comprises a first polarizer, a second polarizer and a third polarizer; the first polarizer is arranged on a side, away from the backlight device, of the second display structure, the second polarizer is arranged between the first display structure and the second display structure, and the third polarizer is arranged on a side, close to the backlight device, of the first display structure; and wherein polarized lights transmitted through the first polarizer and polarized lights transmitted through the second polarizer are perpendicular to each other, and the polarized lights transmitted through the first polarizer and polarized lights transmitted through the third polarizer are parallel to each other. ### Claim 8 (depends on 7) The display device of claim 7, wherein: the first display structure comprises a first substrate and a first liquid crystal arranged between the first substrate and the second polarizer; and the second display structure comprises a third substrate, a fourth substrate opposite to the third substrate, and a second liquid crystal located between the third substrate and the fourth substrate; and wherein the third substrate comprises pixel electrodes, and the third substrate is close to the first substrate. ### Claim 9 (depends on 8) The display device of claim 8, wherein the first substrate comprises pixel electrodes and common electrodes; and the pixel electrodes and the common electrodes are both for driving the first liquid crystal to deflect.