# US 2022/0035408 A1 · 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 2022/0035408 A1 - Document ID: US20220035408A1 - Status: Published application - Kind: A1 - Application number: 17/505,038 - Filed: 2021-10-19 - Published: 2022-02-03 - Earliest claimed: 2020-01-03 - Assignees: Wuhan Tianma Micro-Electronics Co., Ltd. - Applicants: WuHan TianMa Micro-electronics CO., LTD - Inventors: Yangzhao MA; Xingxing YANG; Zhiqiang XIA; Ruiyuan ZHOU - Web page: https://patentgrep.com/patent/US20220035408A1 ## CPC - G06F 1/1647: {including at least an additional display (G06F1/1692 takes precedence)} - G02F 1/13306: {Circuit arrangements or driving methods for the control of single liquid crystal cells (G02F1/132, G02F1/133382 take precedence)} - G06F 1/1626: {with a single-body enclosure integrating a flat display, e.g. Personal Digital Assistants [PDAs]} - G06F 1/1637: {Details related to the display arrangement, including those related to the mounting of the display in the housing} - G06F 1/1686: {the I/O peripheral being an integrated camera} - H10K 59/126: Shielding, e.g. light-blocking means over the TFTs - H10K 59/131: Interconnections, e.g. wiring lines or terminals - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) - 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 - H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES ## Abstract A display panel and a display device are provided. The display panel has a display area including first and second display areas. First light-emitting units and first pixel circuits are provided in the first display area, and second light-emitting units and second pixel circuits are provided in the second display area. The second display area includes at least one light-shielding area and at least one light-transmitting area. At least one second pixel circuit of the second pixel circuits is located in the at least one light-shielding area, and at least one second light-emitting unit of the second light-emitting units is located in the at least one light-transmitting area. One of the at least one second light-emitting unit is connected to one of the at least one second pixel circuit through one of anode connection lines. ## Claims ### Claim 1 A display panel having a display area comprising a first display area and a second display area, wherein the display panel comprises: first light-emitting units and first pixel circuits in the first display area; and second light-emitting units and second pixel circuits in the second display area, wherein the second display area comprises at least one light-shielding area and at least one light-transmitting area, wherein at least one second pixel circuit of the second pixel circuits is located in the at least one light-shielding area, and at least one second light-emitting unit of the second light-emitting units is located in the at least one light-transmitting area; and wherein one of the at least one second light-emitting unit is connected to one of the at least one second pixel circuit through one of anode connection lines. ### Claim 2 (depends on 1) The display panel according to claim 1, wherein the at least one second light-emitting unit comprises at least two second light-emitting units, and the at least one second pixel circuit comprises at least two second pixel circuits; in the second display area, the at least two second light-emitting units are located in the at least one light-transmitting area; and the at least two second light-emitting units are respectively connected, through at least two of the anode connection lines, to the at least two second pixel circuits; and wherein extending directions of at least two of the at least two anode connection lines that are respectively connected to the at least two second light-emitting units cross each other. ### Claim 3 (depends on 1) The display panel according to claim 1, wherein a pixel circuit array is provided in at least one of the at least one light-shielding area, the pixel circuit array comprising second pixel circuits arranged in an array of M rows by N columns, where M and N are positive integers; wherein the second pixel circuits arranged in the M rows and N columns respectively provide driving signals for M*N second light-emitting units of the second light-emitting units through M*N anode connection lines of the anode connection lines; and wherein extending directions of the M*N anode connection lines cross each other. ### Claim 4 (depends on 3) The display panel according to claim 3, wherein the pixel circuit array is provided in each of the at least one light-shielding area, and a number of the second pixel circuits comprised in the pixel circuit array in one of the at least one light-shielding area is the same as a number of the second pixel circuits comprised in the pixel circuit array in another one of the at least one light-shielding area. ### Claim 5 (depends on 1) The display panel according to claim 1, wherein a plurality of sets of light-emitting units is provided in the at least one light-transmitting area, and each set of the plurality of sets of light-emitting units comprises a first light-emitting unit configured to emit light of a first color, a second light-emitting unit configured to emit light of a second color, and a third light-emitting unit configured to emit light of a third color, wherein the first light-emitting unit, the second light-emitting unit, and the third light-emitting unit are adjacent to each other; wherein the first light-emitting unit, the second light-emitting unit, and the third light-emitting unit are connected to three of the at least one second pixel circuit through three anode connection lines of the anode connection lines, respectively; and wherein extending directions of the three anode connection lines cross each other. ### Claim 6 (depends on 1) The display panel according to claim 1, wherein the anode connection lines are made of a transparent conductive material. ### Claim 7 (depends on 6) The display panel according to claim 6, wherein an anode of one of the second light-emitting units comprises a first conductive layer, a second conductive layer, and a reflective layer located between the first conductive layer and the second conductive layer, and one of the anode connection lines is disposed in a same layer as the first conductive layer or the second conductive layer. ### Claim 8 (depends on 1) The display panel according to claim 1, wherein the anode connection lines are made of a metal material. ### Claim 9 (depends on 8) The display panel according to claim 8, wherein an anode of one of the second light-emitting units comprises a first conductive layer, a second conductive layer, and a reflective layer located between the first conductive layer and the second conductive layer, and one of the anode connection lines is disposed in a same layer as the reflective layer. ### Claim 10 (depends on 1) The display panel according to claim 1, further comprising: gate signal lines each extending in a first direction; and data signal lines each extending in a second direction, wherein a distance between two adjacent gate signal lines of the gate signal lines in the light-transmitting area in the second direction is greater than a distance between the two adjacent gate signal lines in the at least one light-shielding area in the second direction, and/or, a distance between two adjacent data signal lines of the data signal lines in the light-transmitting area in the first direction is greater than a distance between the two adjacent data signal lines in the at least one light-shielding area in the first direction. ### Claim 11 (depends on 10) The display panel according to claim 10, wherein an extending direction of one of the anode connection lines crosses both the first direction and the second direction. ### Claim 12 A display panel having a display area comprising a first display area and a second display area, wherein the display panel comprises: first light-emitting units and first pixel circuits in the first display area; and second light-emitting units and second pixel circuits in the second display area, wherein the second display area comprises at least one light-transmitting area, and one of the second light-emitting units is connected to one of the second pixel circuits through one of anode connection lines; and wherein one of the anode connection lines comprises a first connection line segment, wherein the first connection line segment is disposed in a same layer as at least one conductive layer of an anode of one of the second light-emitting units. ### Claim 13 (depends on 12) The display panel according to claim 12, wherein the second display area further comprises at least one light-shielding area, wherein at least one second pixel circuit of the second pixel circuits is located in the at least one light-shielding area, and at least two second light-emitting units of the second light-emitting units are located in the at least one light-transmitting area and are connected to at least two of the second pixel circuits through at least two anode connection lines of the anode connection lines; and wherein extending directions of at least two of the at least two anode connection lines cross each other. ### Claim 14 (depends on 12) The display panel according to claim 12, wherein a pixel circuit array is provided in at least one of the at least one light-shielding area, the pixel circuit array comprising second pixel circuits arranged in an array of M rows by N columns, where M and N are positive integers; wherein the second pixel circuits arranged in the M rows and N columns respectively provide driving signals for M*N second light-emitting units of the second light-emitting units through M*N anode connection lines of the anode connection lines; and wherein extending directions of the M*N anode connection lines cross each other. ### Claim 15 (depends on 14) The display panel according to claim 14, wherein the pixel circuit array is provided in each of the at least one light-shielding area, and a number of the second pixel circuits comprised in the pixel circuit array in one of the at least one light-shielding area is the same as or different from a number of the second pixel circuits comprised in the pixel circuit array in another one of the at least one light-shielding area. ### Claim 16 (depends on 12) The display panel according to claim 12, wherein a plurality of sets of light-emitting units is provided in the at least one light-transmitting area, and each set of the plurality of sets of light-emitting units comprises a first light-emitting unit configured to emit light of a first color, a second light-emitting unit configured to emit light of a second color, and a third light-emitting unit configured to emit light of a third color, wherein the first light-emitting unit, the second light-emitting unit, and the third light-emitting unit are adjacent to each other; wherein the first light-emitting unit, the second light-emitting unit, and the third light-emitting unit are connected to three of the at least one second pixel circuit through three anode connection lines of the anode connection lines, respectively; and wherein extending directions of the three anode connection lines cross each other. ### Claim 17 (depends on 12) The display panel according to claim 12, wherein the anode connection lines are made of a transparent conductive material. ### Claim 18 (depends on 17) The display panel according to claim 17, wherein an anode of one of the second light-emitting units comprises a first conductive layer, a second conductive layer, and a reflective layer located between the first conductive layer and the second conductive layer, and one of the anode connection lines is disposed in a same layer as the first conductive layer or the second conductive layer. ### Claim 19 (depends on 12) The display panel according to claim 12, wherein the anode connection lines are made of a metal material. ### Claim 20 (depends on 19) The display panel according to claim 19, wherein an anode of one of the second light-emitting units comprises a first conductive layer, a second conductive layer, and a reflective layer located between the first conductive layer and the second conductive layer, and one of the anode connection lines is disposed in a same layer as the reflective layer. ### Claim 21 (depends on 1) The display panel according to claim 1, further comprising: gate signal lines each extending in a first direction; and data signal lines each extending in a second direction, wherein a distance between two adjacent gate signal lines of the gate signal lines in the light-transmitting area in the second direction is greater than a distance between the two adjacent gate signal lines in the at least one light-shielding area in the second direction, and/or, a distance between two adjacent data signal lines of the data signal lines in the light-transmitting area in the first direction is greater than a distance between the two adjacent data signal lines in the at least one light-shielding area in the first direction. ### Claim 22 (depends on 21) The display panel according to claim 21, wherein an extending direction of one of the anode connection lines crosses both the first direction and the second direction. ### Claim 23 A display device, comprising: a display panel, wherein the display panel has a display area comprising a first display area and a second display area, and comprises first light-emitting units and first pixel circuits that are located in the first display area, and second light-emitting units and second pixel circuits that are located in the second display area; and wherein the second display area comprises at least one light-shielding area and at least one light-transmitting area, wherein at least one second pixel circuit of the second pixel circuits is located in the at least one light-shielding area, and at least one second light-emitting unit of the second light-emitting units is located in the at least one light-transmitting area; and one of the at least one second light-emitting unit is connected to one of the at least one second pixel circuit through one of anode connection lines; or wherein the second display area comprises at least one light-transmitting area, and one of the second light-emitting units is connected to one of the second pixel circuits through one of anode connection lines; and one of the anode connection lines comprises a first connection line segment, wherein the first connection line segment is disposed in a same layer as at least one conductive layer of an anode of one of the second light-emitting units.