# US 12,217,658 B2 · Display panel and display apparatus > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,217,658 B2 - Document ID: US12217658B2 - Status: Granted - Kind: B2 - Application number: 18/058,676 - Filed: 2022-11-23 - Published: 2023-11-23 - Granted: 2025-02-04 - Earliest claimed: 2022-09-06 - Assignees: Wuhan Tianma Microelectronics Co., Ltd. Shanghai Branch; Wuhan Tianma Microelectronics Co., Ltd. - Applicants: Wuhan Tianma Microelectronics Co., Ltd. Shanghai Branch; Wuhan Tianma Microelectronics Co., Ltd. - Inventors: Xingyao Zhou; Qibing Wei; Peng Zhang; Mengmeng Zhang; Wei Liu; Kang Yang; Gaojun Huang; Yana Gao - Web page: https://patentgrep.com/patent/US12217658B2 ## CPC - G09G 3/32: semiconductive, e.g. using light-emitting diodes [LED] - H10D 86/423: {comprising semiconductor materials not belonging to the Group IV, e.g. InGaZnO} - H10D 86/441: {Interconnections, e.g. scanning lines} - H10D 86/60: wherein the TFTs are in active matrices - H10K 59/131: Interconnections, e.g. wiring lines or terminals - G09G 2300/0413: Details of dummy pixels or dummy lines in flat panels - G09G 2300/0426: Layout of electrodes and connections - 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 - G09G 2310/0248: Precharge or discharge of column electrodes before or after applying exact column voltages - G09G 2310/08: Details of timing specific for flat panels, other than clock recovery - G09G 2320/0223: Compensation for problems related to R-C delay and attenuation in electrodes of matrix panels, e.g. in gate electrodes or on-substrate video signal electrodes - 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 - H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES ## Abstract A display panel has functional component regions arranged along a first direction and a display region at least partially surrounding the functional component regions. The display panel includes first signal lines located in the display region. One of the first signal lines has a least one part extending in the first direction, and the first signal lines are arranged in a second direction intersecting with the first direction. The first signal lines include a first-type signal line and a second-type signal line, and the first-type signal line at least partially surrounds the functional component regions. In the first direction, at least one second-type signal line is broken at two sides of one of the functional component region. ## Claims ### Claim 1 A display panel, wherein the display panel has a display region and at least two functional component regions, wherein the display region at least partially surrounds the at least two functional component regions, and the at least two functional component regions are arranged along a first direction; and wherein the display panel comprises: first signal lines located in the display region, wherein at least part of each first signal line of the first signal lines extends in a first direction, and the first signal lines are arranged in a second direction intersecting with the first direction, wherein the first signal lines comprise at least one first-type signal line and at least one second-type signal line, wherein one of the at least one first-type signal line at least partially surrounds the at least two functional component regions, and at least one of the at least one second-type signal line is broken at two sides of one functional component region of the at least two functional component regions in the first direction; wherein the display panel has a dummy line extending in the second direction and comprises a first edge and a second edge that are opposite to each other in the first direction, wherein a distance d1 between the first edge and the dummy line and a distance d2 between the second edge and the dummy line satisfy 0.9≤d1/d2≤1.1, and wherein the at least two functional component regions comprise a first functional component region and a second functional component region, wherein the dummy line passes through the first functional component region, and one of the at least one second-type signal line is broken at two sides of the first functional component region in the first direction. ### Claim 2 (depends on 1) The display panel according to claim 1, wherein the at least two functional component regions comprise a first functional component region and a second functional component region, wherein a distance A between the first functional component region and an edge of the display region in the first direction and a length B of the display region in the first direction satisfy B/4≤A≤B/2, and wherein one of the at least one second-type signal line is broken at two sides of the first functional component region in the first direction. ### Claim 3 (depends on 1) The display panel according to claim 1, wherein the at least two functional component regions comprise a first functional component region and a second functional component region, wherein a length of the first functional component region in the first direction is greater than a length of the second functional component region in the first direction, and one of the at least one second-type signal line is broken at two sides of the first functional component region in the first direction. ### Claim 4 (depends on 1) The display panel according to claim 1, wherein at least one first signal line of the first signal lines comprises at least one first connecting line, wherein one of the at least one first connecting line electrically connects two parts, which are located at two sides of one functional component region of the at least two functional component regions, of one first signal line of the first signal lines. ### Claim 5 (depends on 4) The display panel according to claim 4, wherein the at least one first connecting line comprises a first-type connecting line and a second-type connecting line, wherein the at least one first-type signal line comprises the first-type connecting line, and the first-type connecting line electrically connects parts of one of the at least one first-type signal line that are located at two sides of one of the at least two functional component regions; and the at least one second-type signal line comprises the second-type connecting line, and the second-type connecting line electrically connects parts of one of the at least one second-type signal line that are located at two sides of one of the at least two functional component regions. ### Claim 6 (depends on 4) The display panel according to claim 4, wherein the display panel further has a first non-display region located between the display region and one of the at least two functional component regions, wherein at least part of one first connecting line of the at least one first connecting line is located in the first non-display region. ### Claim 7 (depends on 4) The display panel according to claim 4, wherein at least part of one first connecting line of the at least one first connecting line is located in the display region. ### Claim 8 (depends on 7) The display panel according to claim 7, wherein one first connecting line of the at least one first connecting line comprises a first segment and a second segment that are electrically connected to each other, wherein the first segment and the second segment extend in different directions. ### Claim 9 (depends on 4) The display panel according to claim 4, wherein the display panel further has a second non-display region located at a side of the display region away from one of the at least two functional component regions; and wherein at least part of one first connecting line of the at least one first connecting line is located in the second non-display region. ### Claim 10 (depends on 4) The display panel according to claim 4, wherein the first signal lines comprise at least two first signal lines corresponding to the at least two functional component regions, wherein in the second direction, at least two first connecting lines in the at least two first signal lines are located at a same side of the at least two functional component regions. ### Claim 11 (depends on 4) The display panel according to claim 4, wherein the first signal lines comprise at least two first signal lines corresponding to the at least two functional component regions, wherein each of the at least two first signal lines comprises the at least one first connecting line; and in the second direction, one first connecting line of the at least one first connecting line of one first signal line of the at least two first signal lines is located at a first side of one functional component region of the at least two functional component regions, and one first connecting line of the at least one first connecting line of another first signal line of the at least two first signal lines is located at a second side of the one functional component region of the at least two functional component regions. ### Claim 12 (depends on 1) The display panel according to claim 1, wherein the at least one second-type signal line comprises a control signal line, and the display panel further has a second non-display region that at least partially surrounds the display region; and wherein the display panel further comprises: a first-type driving circuit located in the second non-display region and electrically connected to one of the at least one first-type signal line and located at a side of the display region in the first direction, and second-type driving circuits located in the second non-display region and electrically connected to the control signal line and located at two sides of the display region in the first direction. ### Claim 13 (depends on 12) The display panel according to claim 12, wherein the at least one first-type signal line comprises at least one first-type connecting line, wherein one of the at least one first-type connecting line electrically connects parts of one first-type signal line of the at least one first-type signal line that are located at two sides of one of the at least one functional component region; wherein the display panel further comprises pixel driving circuit groups arranged in the display region along the second direction, wherein each pixel driving circuit group of the pixel driving circuit groups comprises at least two pixel driving circuit rows arranged in the second direction, wherein each pixel driving circuit row of the at least two pixel driving circuit rows comprises pixel driving circuits arranged in the first direction; wherein the at least one first-type signal line comprises a plurality of first-type signal lines, the first-type driving circuit comprises first-type driving units that are cascaded, wherein one of the first-type driving units is electrically connected to the at least two pixel driving circuit rows in one pixel driving circuit group of the pixel driving circuit groups through at least two first-type signal lines of the plurality of first-type signal lines; and wherein the display panel further comprises at least one first jointing line, wherein at least two of the plurality of first-type signal lines that are electrically connected to the at least two pixel driving circuit rows in one pixel driving circuit group of the pixel driving circuit groups are electrically connected to one of the at least one first jointing line, and the one of the at least one first jointing line is electrically connected to the at least one first-type connecting line. ### Claim 14 (depends on 12) The display panel according to claim 12, further comprising: pixel driving circuits located in the display region, wherein each of the pixel driving circuit comprises: a driving transistor, a light-emitting control circuit having a control terminal electrically connected to a light-emitting control signal line, a gate reset circuit having a control terminal electrically connected to a first scanning control signal line and an input terminal electrically connected to a first reset signal line, a data input circuit having a control terminal electrically connected to one second scanning control signal line of second scanning control signal lines, a threshold voltage compensation circuit having a control terminal electrically connected to a third scanning control signal line, and a light-emitting element reset circuit having a control terminal electrically connected to a fourth scanning control signal line, wherein the at least one first-type signal line comprises at least one of the light-emitting control signal line, the first scanning control signal line, the third scanning control signal line, or the fourth scanning control signal line; and the control signal line comprises the one second scanning control signal line. ### Claim 15 (depends on 14) The display panel according to claim 14, wherein the at least one second-type signal line further comprises a functional signal line, wherein the functional signal line is configured to transmit a constant signal and is electrically connected to an input terminal of the pixel driving circuit. ### Claim 16 (depends on 15) The display panel according to claim 15, wherein the functional signal line comprises the first reset signal line. ### Claim 17 (depends on 15) The display panel according to claim 15, wherein an input terminal of the light-emitting element reset circuit is electrically connected to a second reset signal line, and the functional signal line comprises the second reset signal line. ### Claim 18 (depends on 15) The display panel according to claim 15, wherein the pixel driving circuit further comprises a bias adjusting circuit, wherein the bias adjusting circuit is electrically connected to the fourth scanning control signal and a signal adjusting line, and the functional signal line comprises the signal adjusting line. ### Claim 19 (depends on 15) The display panel according to claim 15, wherein the at least one second-type signal line comprises N functional signal lines electrically connected to M second-type connecting lines of the at least one second-type connecting line, respectively, where 1≤M≤N, and N and M are integers. ### Claim 20 (depends on 14) The display panel according to claim 14, wherein an input terminal of the light-emitting element reset circuit is electrically connected to a second reset signal line; wherein the pixel driving circuit further comprises a bias adjusting circuit, wherein the bias adjusting circuit is electrically connected to the fourth scanning control signal and a signal adjusting line; wherein the at least one first-type signal line comprises the light-emitting control signal line, the first scanning control signal line, the third scanning control signal line, and the fourth scanning control signal line; and wherein, in the second direction, the first scanning control signal line, the one second scanning control signal line, the third scanning control signal line, the light-emitting control signal line, the fourth scanning control signal line, the second reset signal line, the signal adjusting line, and the first rest signal line are sequentially arranged. ### Claim 21 (depends on 14) The display panel according to claim 14, further comprising: a first metal layer, a second metal layer, a third metal layer, a fourth metal layer, and a fifth metal layer that are sequentially stacked in a thickness direction of the display panel, wherein the first scanning control signal line comprises a first sub-line and a second sub-line that are connected in parallel, wherein the first sub-line of the first scanning control signal line is located in the third metal layer, and the second sub-line of the first scanning control signal line is located in the fourth metal layer; wherein the one second scanning control signal line is located in the second metal layer; wherein the third scanning control signal line comprises a first sub-line and a second sub-line that are connected in parallel, wherein the first sub-line of the third scanning control signal line is located in the third metal layer, and the second sub-line of the third scanning control signal line is located in the fourth metal layer; wherein the light-emitting control signal line is located in the second metal layer; wherein the fourth scanning control signal line is located in the second metal layer; and wherein the first reset signal line is located in the second metal layer. ### Claim 22 (depends on 21) The display panel according to claim 21, wherein the light-emitting element reset circuit is electrically connected to a second reset signal line, wherein the pixel driving circuit further comprises a bias adjusting circuit, wherein the bias adjusting circuit is electrically connected to the fourth scanning control signal line and a signal adjusting line; and wherein the second reset signal line is located in the fifth metal layer, and the signal adjusting line is located in the fourth metal layer. ### Claim 23 (depends on 22) The display panel according to claim 22, wherein the at least one first-type signal line comprises a plurality of first-type signal lines, and each of at least one of the plurality of first-type signal lines comprises at least one first-type connecting line, wherein each of the at least one first-type connecting line electrically connects parts of one of the plurality of first-type signal lines that are located at two sides of one of the at least two functional component regions; wherein the display panel comprises pixel driving circuit groups arranged in the display region along the second direction, each pixel driving circuit group of the pixel driving circuit groups comprises at least two pixel driving circuit rows arranged in the second direction, and each pixel driving circuit row of the at least two pixel driving circuit rows comprises pixel driving circuits arranged in the first direction; wherein the first-type driving circuit comprises first-type driving units that are cascaded, wherein one of the first-type driving units is electrically connected to the at least two pixel driving circuit rows in one pixel driving circuit group of the pixel driving circuit groups through at least two first-type signal lines of the plurality of first-type signal lines; wherein the display panel further comprises first jointing lines, wherein the at least two first-type signal lines are electrically connected to one of the first jointing lines, and one of the first jointing lines is electrically connected to the at least one first-type connecting line; and wherein one of the first jointing lines that is electrically connected to the first scanning control signal line, one of the first jointing lines that is electrically connected to the third scanning control signal line, one of the first jointing lines that is electrically connected to the light-emitting control signal line, one of the first jointing lines that is electrically connected to the fourth scanning control signal line, one of the first jointing lines that is electrically connected to the signal adjusting line, and one of the first jointing lines that is electrically connected to the first reset signal line are all located in the fifth metal layer. ### Claim 24 (depends on 23) The display panel according to claim 23, wherein the one of the first jointing lines that is electrically connected to the second rest signal line is located in the first metal layer. ### Claim 25 (depends on 23) The display panel according to claim 23, wherein the one of the first jointing lines that is electrically connected to the second rest signal line is located in the fifth metal layer. ### Claim 26 (depends on 22) The display panel according to claim 22, wherein the first signal lines comprises first connecting lines, wherein one of the first connecting lines electrically connects two parts, which are located at two sides of one functional component region of the at least two functional component regions, of one first signal line of the first signal lines; and wherein in the second direction, at least two of the first connecting lines are alternately arranged in at least two of the first metal layer, the second metal layer, the third metal layer, the fourth metal layer, or the fifth metal layer. ### Claim 27 (depends on 26) The display panel according to claim 26, wherein the first connecting lines comprise first-type connecting lines and second-type connecting lines; and wherein one of the first-type connecting lines that corresponds to the first scanning control signal line, one of the second-type connecting lines that corresponds to the one second scanning control signal line of the second scanning control signal lines, one of the first-type connecting lines that corresponds to the third scanning control signal line, one of the first-type connecting lines that corresponds to the light-emitting control signal line, one of the first-type connecting lines that corresponds to the fourth scanning control signal line, one of the second-type connecting lines that corresponds to another one second scanning control signal line of the second scanning control signal lines, one of the first-type connecting lines that corresponds to the signal adjusting line, and one of the first-type connecting lines that corresponds to the first reset signal line are alternately arranged in the fourth metal layer and the second metal layer. ### Claim 28 (depends on 27) The display panel according to claim 27, wherein one of the second-type connecting lines that corresponds to the second reset signal line is located in the first metal layer. ### Claim 29 (depends on 26) The display panel according to claim 26, wherein the first connecting lines comprise first-type connecting lines and second-type connecting lines; and wherein one of the first-type connecting lines that corresponds to the first scanning control signal line, one of the second-type connecting lines that corresponds to the one second scanning control signal line of the second scanning control signal lines, one of the first-type connecting lines that corresponds to the third scanning control signal line, one of the first-type connecting lines that corresponds to the light-emitting control signal line, one of the first-type connecting lines that corresponds to the fourth scanning control signal line, one of the second-type connecting lines that corresponds to the signal adjusting line, one of the second-type connecting lines that corresponds to the first reset signal line, one of the second-type connecting lines that corresponds to another second scanning control signal line of the second scanning control signal lines, and one of the second-type connecting line that corresponds to the second reset signal line are alternately arranged in the first metal layer, the second metal layer, and the fourth metal layer. ### Claim 30 (depends on 27) The display panel according to claim 27, wherein one first connecting line of the first connecting lines that is located in one of the first metal layer, the second metal layer, the third metal layer, the fourth metal layer, or the fifth metal layer has a width of 1.6 μm, and another first connecting line of the first connecting lines that is located in another one of the first metal layer, the second metal layer, the third metal layer, the fourth metal layer, or the fifth metal layer has a width of 1.7 μm; and two adjacent first connecting lines of the first connecting lines are located in two of the first metal layer, the second metal layer, the third metal layer, the fourth metal layer, or the fifth metal layer, and a distance between the two adjacent first connecting lines is 1.6 μm or 1.5 μm. ### Claim 31 (depends on 22) The display panel according to claim 22, wherein the first connecting lines comprise first-type connecting lines and second-type connecting lines, and the display panel further comprises pixel driving circuit groups arranged in the second direction; and wherein in the second direction, one of the first-type connecting lines that corresponds to the first scanning control signal line, one of the second-type connecting lines that corresponds to one of the second scanning control signal lines electrically connected to one pixel driving circuit group of the pixel driving circuit groups, one of the first-type connecting lines that corresponds to the third scanning control signal line, one of the first-type connecting lines that corresponds to the light-emitting control signal line, one of the first-type connecting lines that corresponds to the fourth scanning control signal line, one of the second-type connecting lines that corresponds to another second scanning control signal line of the second scanning control signal lines electrically connected to one pixel driving circuit group of the pixel driving circuit groups, one of the second-type connecting lines that corresponds to the second reset signal line, one of the second-type connecting lines that corresponds to the signal adjusting line, and one of the second-type connecting lines that corresponds to the first reset signal line are sequentially arranged. ### Claim 32 (depends on 22) The display panel according to claim 22, wherein the first connecting lines comprise first-type connecting lines and second-type connecting lines, and the display panel further comprises pixel driving circuit groups arranged in the second direction; and wherein in the second direction, one of the first-type connecting lines that corresponds to the first scanning control signal line, one of the second-type connecting line that corresponds to one of the second scanning control signal lines electrically connected to one pixel driving circuit group of the pixel driving circuit groups, one of the first-type connecting lines that corresponds to the third scanning control signal line, one of the first-type connecting lines that corresponds to the light-emitting control signal line, one of the first-type connecting lines that corresponds to the fourth scanning control signal line, one of the second-type connecting lines that corresponds to the signal adjusting line, one of the second-type connecting lines that corresponds to the first reset signal line, one of the second-type connecting lines that corresponds to another second scanning control signal line of the second scanning control signal lines electrically connected to one pixel driving circuit group of the pixel driving circuit groups, and one of the second-type connecting lines that corresponds to the second reset signal line are sequentially arranged. ### Claim 33 (depends on 15) The display panel according to claim 15, wherein the at least one first-type signal line comprises a plurality of first-type signal lines, and the first-type driving circuit comprises a first-side driving circuit and a second-side driving circuit, wherein the display region is located between the first-side driving circuit and the second-side driving circuit in the first direction, one of the plurality of first-type signal lines is electrically connected to the first-side driving circuit, and another one of the plurality of at least one first-type signal lines is electrically connected to the second-side driving circuit. ### Claim 34 (depends on 33) The display panel according to claim 33, wherein the first-side driving circuit comprises a first scanning control circuit and a light-emitting control circuit, wherein the first scanning control circuit is electrically connected to the first scanning control signal line, and the light-emitting control circuit is electrically connected to the light-emitting control signal line, and wherein the second-side driving circuit comprises a third scanning control circuit and a fourth scanning control circuit, wherein the third scanning control circuit is electrically connected to the third scanning control signal line, and the fourth scanning control circuit is electrically connected to the fourth scanning control signal line. ### Claim 35 (depends on 1) The display panel according to claim 1, further comprising second signal lines located in the display region, wherein one of the second signal lines has at least one part extending in the second direction, and the second signal lines are arranged in the first direction and at least partially surround one of the at least two functional component regions. ### Claim 36 (depends on 35) The display panel according to claim 35, wherein the second signal lines comprise a first power supply voltage line. ### Claim 37 (depends on 35) The display panel according to claim 35, wherein the second signal lines comprise second connecting lines, wherein each of the second connecting lines electrically connects parts of one of the second signal lines that are located at two sides of one of the at least two functional component regions. ### Claim 38 (depends on 37) The display panel according to claim 37, wherein one of the second connecting lines has at least one part located in the display region. ### Claim 39 (depends on 37) The display panel according to claim 37, wherein one of the second connecting lines has at least one part located between a second non-display region and one of the at least two functional component regions, wherein the second non-display region at least partially surrounds the display region; or the second connecting line has at least one part located between two adjacent functional component regions of the at least two functional component regions. ### Claim 40 (depends on 35) The display panel according to claim 35, wherein the display panel further has a second non-display region that at least partially surrounds the display region, and the display panel further comprises a connecting bus located in the second non-display region, wherein the connecting bus is electrically connected to the second signal lines. ### Claim 41 (depends on 35) The display panel according to claim 35, wherein one of the at least two functional component regions comprises a first functional component sub-region and a second functional component sub-region that are arranged in the first direction. ### Claim 42 (depends on 41) The display panel according to claim 41, wherein at least one second signal line of the second signal lines is arranged between the first functional component sub-region and the second functional component sub-region. ### Claim 43 A display apparatus, comprising a display panel, wherein the display panel has a display region and at least two functional component regions, wherein the display region at least partially surrounding the at least two functional component regions, and the at least two functional component regions are arranged along a first direction; and wherein the display panel comprises: first signal lines located in the display region, wherein at least part of each first signal line of the first signal lines extends in the first direction, and the first signal lines are arranged in a second direction intersecting with the first direction, wherein the first signal lines comprise at least one first-type signal line and at least one second-type signal line, wherein one of the at least one first-type signal line at least partially surrounds the at least two functional component regions, and at least one of the at least one second-type signal line is broken at two sides of one functional component region of the at least two functional component regions in the first direction; wherein the display panel has a dummy line extending in the second direction and comprises a first edge and a second edge that are opposite to each other in the first direction, wherein a distance d1 between the first edge and the dummy line and a distance d2 between the second edge and the dummy line satisfy 0.9≤d1/d2≤1.1, and wherein the at least two functional component regions comprise a first functional component region and a second functional component region, wherein the dummy line passes through the first functional component region, and one of the at least one second-type signal line is broken at two sides of the first functional component region in the first direction.