# US 12,222,751 B2 · Display panel and display device with light-transmitting holes distributed along a ring shape > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,222,751 B2 - Document ID: US12222751B2 - Status: Granted - Kind: B2 - Application number: 16/840,589 - Filed: 2020-04-06 - Published: 2021-07-01 - Granted: 2025-02-11 - Earliest claimed: 2019-12-31 - Assignees: Wuhan Tianma Micro-Electronics Co., Ltd. - Applicants: Wuhan Tianma Micro-Electronics Co., Ltd. - Inventors: Suli Hu; Yangzhao Ma; Zhiqiang Xia; Ruiyuan Zhou - Web page: https://patentgrep.com/patent/US12222751B2 ## CPC - G06F 1/1605: {Multimedia displays, e.g. with integrated or attached speakers, cameras, microphones} - G06F 1/1626: {with a single-body enclosure integrating a flat display, e.g. Personal Digital Assistants [PDAs]} - G06F 1/189: {Power distribution} - H10F 39/8023: {Disposition of the elements in pixels, e.g. smaller elements in the centre of the imager compared to larger elements at the periphery} - H10F 39/8067: {Reflectors} - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) - H10F: INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION ## Abstract A display panel and a display device are provided in the present disclosure. The display panel includes a first display region and a second display region. The second display region includes a plurality of light-transmitting hole combination regions. At least one light-transmitting hole group is disposed at each light-transmitting hole combination region; each light-transmitting hole group includes a plurality of light-transmitting holes; a boundary line of each light-transmitting hole is a closed arc; and centers of all light-transmitting holes in each light-transmitting hole group are distributed along a ring shape. The second display region further includes a plurality of pixels and a plurality of pixel drive circuits. Pixel drive circuits used for driving pixels in the light-transmitting hole combination region are first pixel drive circuits, and at least a portion of the first pixel drive circuits is at a region outside the light-transmitting hole combination region. ## Claims ### Claim 1 A display panel, comprising: a first display region and a second display region, wherein: the second display region includes a plurality of light-transmitting hole combination regions, wherein: at each light-transmitting hole combination region, at least two light-transmitting hole groups surround a central light-transmitting hole; each light-transmitting hole group includes a plurality of light-transmitting holes; a boundary line of each light-transmitting hole is a closed arc; and centers of all light-transmitting holes in each light-transmitting hole group are distributed along a ring shape, wherein different light-transmitting hole groups have different ring sizes, different ring shapes corresponding to the at least two light-transmitting hole groups share a common center with a center of the central light-transmitting hole, and each of at least two ring shapes, corresponding to the at least two light-transmitting hole groups, is a circle or an ellipse; all light-transmitting holes, except the central light-transmitting hole, in the second display region are distributed along a ring shape, and there is no light-transmitting hole between two adjacent light-transmitting hole combination regions; and the second display region further includes a plurality of pixels and a plurality of pixel drive circuits, wherein: pixel drive circuits in the plurality of pixel drive circuits used for driving pixels in the light-transmitting hole combination regions are first pixel drive circuits; at least a portion of the first pixel drive circuits is at a region outside the light-transmitting hole combination regions; and the pixels in the light-transmitting hole combination regions are exclusively disposed between the at least two light-transmitting hole groups and between the central light-transmitting hole and one of the at least two light-transmitting hole groups directly adjacent to the central light-transmitting hole in the second display region. ### Claim 2 (depends on 1) The display panel according to claim 1, wherein: centers of all light-transmitting hole groups in each light-transmitting hole combination region coincide with each other. ### Claim 3 (depends on 2) The display panel according to claim 2, wherein: the at least two light-transmitting hole groups disposed at each light-transmitting hole combination region include a first light-transmitting hole group and a second light-transmitting hole group, wherein: a distance between each light-transmitting hole in the first light-transmitting hole group and the central light-transmitting hole is greater than a distance between each light-transmitting hole in the second light-transmitting hole group and the central light-transmitting hole; and a quantity of the light-transmitting holes included in the first light-transmitting hole group is greater than a quantity of the light-transmitting holes included in the second light-transmitting hole group. ### Claim 4 (depends on 1) The display panel according to claim 1, wherein: the first pixel drive circuits include a plurality of first sub-pixel drive circuit groups, and a first sub-pixel drive circuit group includes at least two pixel drive circuits; and the plurality of first sub-pixel drive circuit groups is evenly disposed around the light-transmitting hole combination regions. ### Claim 5 (depends on 4) The display panel according to claim 4, wherein: the second display region includes the plurality of light-transmitting hole combination regions arranged in a matrix; and the plurality of the first sub-pixel drive circuit groups is evenly disposed at a gap between two light-transmitting hole combination regions which are adjacent to the plurality of the first sub-pixel drive circuit groups. ### Claim 6 (depends on 1) The display panel according to claim 1, wherein: the first pixel drive circuits further include a plurality of second sub-pixel drive circuit groups; and the plurality of second sub-pixel drive circuit groups is disposed within the light-transmitting hole combination regions. ### Claim 7 (depends on 1) The display panel according to claim 1, wherein: the second display region further includes an electrical connection line electrically connecting a pixel with a pixel drive circuit. ### Claim 8 (depends on 7) The display panel according to claim 7, wherein: the electrical connection line includes a metal wiring which is at a region in the light-transmitting hole combination regions and outside the light-transmitting holes. ### Claim 9 (depends on 7) The display panel according to claim 7, wherein: the electrical connection line includes a transparent conductive wiring, wherein at least a portion of the transparent conductive wiring is at a region of the light-transmitting holes in the light-transmitting hole combination regions. ### Claim 10 (depends on 7) The display panel according to claim 7, wherein: the electrical connection line includes a metal wiring and a transparent conductive wiring electrically connected to the metal wiring, wherein the metal wiring is at a region in the light-transmitting combination regions and outside the light-transmitting holes, and at least a portion of the transparent conductive wiring is at a region of the light-transmitting holes in the light-transmitting hole combination regions. ### Claim 11 (depends on 7) The display panel according to claim 7, further including: a plurality of scan lines arranged along a first direction; and the plurality of scan lines is at a region outside the light-transmitting hole combination regions in the second display region and passes through gaps between adjacent light-transmitting hole combination regions arranged along a second direction. ### Claim 12 (depends on 7) The display panel according to claim 7, further including: a plurality of data lines arranged along a second direction; and the plurality of data lines is at a region outside the light-transmitting hole combination regions in the second display region and passes through gaps between adjacent light-transmitting hole combination regions arranged along a first direction. ### Claim 13 (depends on 1) The display panel according to claim 1, further including: a support element; a multi-layer insulating layer on a first side surface of the support element, wherein the multi-layer insulating layer includes at least one organic insulating layer and at least one inorganic insulating layer, and a portion of the multi-layer insulating layer, corresponding to the light-transmitting hole combination regions, includes a plurality of first through holes passing through the at least one organic insulating layer; and a metal light-shielding layer on a side of the multi-layer insulating layer away from the support element, wherein a portion of the metal light-shielding layer, corresponding to the light-transmitting hole combination regions, includes a plurality of second through holes passing through the metal light-shielding layer; and the plurality of first through holes and the plurality of second through holes have a one-to-one correspondence passing through each other to form the light-transmitting holes of the second display region. ### Claim 14 (depends on 13) The display panel according to claim 13, wherein: the metal light-shielding layer includes a plurality of first anode power supply lines; and the display panel further includes second anode power supply lines disposed at a different layer of the first anode power supply lines, wherein the first anode power supply lines have a one-to-one correspondence with the second anode power supply lines and are configured in parallel with the second anode power supply lines corresponding to the first anode power supply lines. ### Claim 15 A display device, comprising: a display panel, comprising: a first display region and a second display region, wherein: the second display region includes a plurality of light-transmitting hole combination regions, wherein: at each light-transmitting hole combination region, at least two light-transmitting hole groups surround a central light-transmitting hole; each light-transmitting hole group includes a plurality of light-transmitting holes; a boundary line of each light-transmitting hole is a closed arc; and centers of all light-transmitting holes in each light-transmitting hole group are distributed along a ring shape, wherein different light-transmitting hole groups have different ring sizes, different ring shapes corresponding to the at least two light-transmitting hole groups share a common center with a center of the central light-transmitting hole, and each of at least two ring shapes, corresponding to the at least two light-transmitting hole groups, is a circle or an ellipse; all light-transmitting holes, except the central light-transmitting hole, in the second display region are distributed along a ring shape, and there is no light-transmitting hole between two adjacent light-transmitting hole combination regions; and the second display region further includes a plurality of pixels and a plurality of pixel drive circuits, wherein: pixel drive circuits in the plurality of pixel drive circuits used for driving pixels in the light-transmitting hole combination regions are first pixel drive circuits; at least a portion of the first pixel drive circuits is at a region outside the light-transmitting hole combination regions; and the pixels in the light-transmitting hole combination regions are exclusively disposed between the at least two light-transmitting hole groups and between the central light-transmitting hole and one of the at least two light-transmitting hole groups directly adjacent to the central light-transmitting hole in the second display region. ### Claim 16 (depends on 15) The display device according to claim 15, further including: a camera, disposed at the second display region.