# US 12,225,765 B2 · Display panel and display device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,225,765 B2 - Document ID: US12225765B2 - Status: Granted - Kind: B2 - Application number: 17/385,592 - Filed: 2021-07-26 - Published: 2022-12-01 - Granted: 2025-02-11 - Earliest claimed: 2021-05-25 - Assignees: Hubei Yangtze Industrial Innovation Center Of Advanced Display Co., Ltd. - Applicants: Hubei Yangtze Industrial Innovation Center of Advanced Display Co., LTD. - Inventors: Ai Xiao - Web page: https://patentgrep.com/patent/US12225765B2 ## CPC - H10K 59/38: comprising colour filters or colour changing media [CCM] - H10K 59/121: characterised by the geometry or disposition of pixel elements - H10K 59/131: Interconnections, e.g. wiring lines or terminals - H10K 59/8792: {comprising light absorbing layers, e.g. black layers} - H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES ## Abstract A display panel and a display device are provided in the present disclosure. The display panel includes a display region and a non-display region, where the non-display region is on at least one side of the display region. The display panel includes a substrate; a light-emitting unit layer on a side of the substrate, where the light-emitting unit layer includes pixel units, at the display region, arranged in an array; and further includes a light-blocking layer on a side of the light-emitting unit layer away from the substrate, where the light-blocking layer includes first openings and second openings. The first openings are at the display region; along a direction perpendicular to the substrate, the pixel units correspond to the first openings; and the second openings are at least on a side of the non-display region adjacent to the display region. ## Claims ### Claim 1 A display panel, including a display region and a non-display region, where the non-display region is on at least one side of the display region, comprising: a substrate; a light-emitting unit layer on a side of the substrate, wherein the light-emitting unit layer includes pixel units, at the display region, arranged in an array; and a light-blocking layer on a side of the light-emitting unit layer away from the substrate, wherein the light-blocking layer includes first openings and second openings, wherein: the first openings are at the display region; and along a direction perpendicular to the substrate, the pixel units correspond to the first openings; and the second openings are at least on a side of the non-display region adjacent to the display region; and along a first direction, opening areas of the second openings gradually increase, wherein the first direction is a direction parallel to the substrate and parallel to a plane that separates the non-display region from the display region. ### Claim 2 (depends on 1) The display panel according to claim 1, wherein: the non-display region includes a wiring region and a driving circuit region; the wiring region is adjacent to the display region; and the driving circuit region is on a side of the wiring region away from the display region; and the second openings are at least at the wiring region. ### Claim 3 (depends on 2) The display panel according to claim 2, wherein: an arrangement pattern of the second openings at the wiring region is same as an arrangement pattern of the pixel units. ### Claim 4 (depends on 2) The display panel according to claim 2, further including: a color resist layer on the side of the light-emitting unit layer away from the substrate, wherein: the color resist layer includes color resist units arranged in an array; and along the direction perpendicular to the substrate, a projection of the color resist units on the light-blocking layer at least covers the second openings. ### Claim 5 (depends on 4) The display panel according to claim 4, wherein: the color resist layer includes a plurality of first-color color resists; along the direction perpendicular to the substrate, a first opening of the first openings corresponds to a first-color color resist of the plurality of first-color color resists; along the direction perpendicular to the substrate, a second opening of the second openings corresponds to another first-color color resist of the plurality of first-color color resists; and an opening area of the second opening at the wiring region is greater than or equal to an opening area of the first opening. ### Claim 6 (depends on 5) The display panel according to claim 5, wherein: the light-blocking layer further includes third openings in the driving circuit region; and along the direction perpendicular to the substrate, the projection of the color resist units on the light-blocking layer covers the third openings; along the direction perpendicular to the substrate, a third opening of the third openings corresponds to one first-color color resist of the plurality of first-color color resists; and an opening area of the third opening is less than the opening area of the first opening. ### Claim 7 (depends on 6) The display panel according to claim 6, wherein: a pixel unit of the pixel units includes a first sub-pixel; along the direction perpendicular to the substrate, the first sub-pixel corresponds to one first opening; the first sub-pixel includes a first electrode, a light-emitting material, and a second electrode which are stacked sequentially; and a projection of the first electrode on the light-blocking layer is in the one first opening; and an opening area of one or more third openings is equal to an area of the first electrode. ### Claim 8 (depends on 7) The display panel according to claim 7, wherein: a shape of the third opening and a shape of a projection of the first electrode on the substrate are the same. ### Claim 9 (depends on 4) The display panel according to claim 4, wherein: the wiring region further includes at least one reflecting unit on a side of the light-blocking layer adjacent to the substrate; and a projection of a reflecting unit of the at least one reflecting unit on the light-blocking layer overlaps a second opening of the second openings. ### Claim 10 (depends on 1) The display panel according to claim 1, wherein: a pixel unit of the pixel units includes a first sub-pixel; along the direction perpendicular to the substrate, the first sub-pixel corresponds to one first opening; the first sub-pixel includes a first electrode, a light-emitting material, and a second electrode which are stacked sequentially; and a projection of the first electrode on the light-blocking layer is in the one first opening; and an area of a reflecting unit is less than an area of the first electrode. ### Claim 11 (depends on 10) The display panel according to claim 10, wherein: a projection of the reflecting unit on the substrate and a projection of the first electrode on the substrate have same shapes. ### Claim 12 (depends on 10) The display panel according to claim 10, wherein: the reflecting unit is electrically connected to the second electrode. ### Claim 13 (depends on 10) The display panel according to claim 10, wherein: the reflecting unit and the first electrode are formed using a same material at a same processing layer. ### Claim 14 (depends on 10) The display panel according to claim 10, wherein: the light-emitting unit layer further includes a driving array on a side of the first electrode adjacent to the substrate, and the driving array includes at least one thin film transistor; a light-blocking metal layer is disposed on a side of the driving array adjacent to the substrate; and the reflecting unit and the light-blocking metal layer are formed using a same material at a same processing layer. ### Claim 15 A display device, comprising: a display panel, including a display region and a non-display region, where the non-display region is on at least one side of the display region, comprising: a substrate; a light-emitting unit layer on a side of the substrate, wherein the light-emitting unit layer includes pixel units, at the display region, arranged in an array; and a light-blocking layer on a side of the light-emitting unit layer away from the substrate, wherein the light-blocking layer includes first openings and second openings, wherein: the first openings are at the display region; and along a direction perpendicular to the substrate, the pixel units correspond to the first openings; and the second openings are at least on a side of the non-display region adjacent to the display region; and a driving chip on the display panel, wherein: the display panel further includes a touch-control layer on a side of the light-blocking layer adjacent to the substrate; the touch-control layer and the driving chip are electrically connected with each other through touch-control wires; and along the direction perpendicular to the substrate, the touch-control wires overlap the non-display region; and along a first direction, opening areas of the second openings gradually increase, wherein the first direction is a direction pointing from a side of the display panel adjacent to the driving chip to a side of the display panel away from the driving chip. ### Claim 16 (depends on 15) The display device according to claim 15, wherein: the non-display region includes a wiring region and a driving circuit region; the wiring region is adjacent to the display region; and the driving circuit region is on a side of the wiring region away from the display region; and along the direction perpendicular to the substrate, the touch-control wires overlap the wiring region. ### Claim 17 (depends on 15) The display device according to claim 15, wherein: the non-display region includes a wiring region and a driving circuit region; the wiring region is adjacent to the display region; and the driving circuit region is on a side of the wiring region away from the display region; and the second openings are at least at the wiring region. ### Claim 18 (depends on 17) The display device according to claim 17, wherein: the display panel further includes a color resist layer on the side of the light-emitting unit layer away from the substrate, wherein: the color resist layer includes color resist units arranged in an array; and along the direction perpendicular to the substrate, a projection of the color resist units on the light-blocking layer at least covers the second openings. ### Claim 19 (depends on 18) The display device according to claim 18, wherein: the wiring region further includes at least one reflecting unit on a side of the light-blocking layer adjacent to the substrate; and a projection of a reflecting unit of the at least one reflecting unit on the light-blocking layer overlaps a second opening of the second openings. ### Claim 20 (depends on 19) The display device according to claim 19, wherein: a pixel unit of the pixel units includes a first sub-pixel; along the direction perpendicular to the substrate, the first sub-pixel corresponds to one first opening; the first sub-pixel includes a first electrode, a light-emitting material, and a second electrode which are stacked sequentially; and a projection of the first electrode on the light-blocking layer is in the one first opening; and an area of the reflecting unit is less than an area of the first electrode.