US 12,439,688 B2
Array substrate and display panel
Bangqing Xiao, Shenzhen (CN)
Assigned to TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD., Shenzhen (CN)
Appl. No. 17/286,479
Filed by TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD., Shenzhen (CN)
PCT Filed Feb. 22, 2021, PCT No. PCT/CN2021/077286
§ 371(c)(1), (2) Date Apr. 18, 2021,
PCT Pub. No. WO2022/160392, PCT Pub. Date Aug. 4, 2022.
Claims priority of application No. 202110116613.1 (CN), filed on Jan. 28, 2021.
Prior Publication US 2023/0261006 A1, Aug. 17, 2023
Int. Cl. G02F 1/1333 (2006.01); G02F 1/1343 (2006.01); G02F 1/1345 (2006.01); G02F 1/1362 (2006.01); H10D 86/40 (2025.01); H10D 86/60 (2025.01)
CPC H10D 86/60 (2025.01) [G02F 1/134309 (2013.01); G02F 1/136286 (2013.01); H10D 86/441 (2025.01)] 14 Claims
OG exemplary drawing
 
1. An array substrate, comprising:
a display region;
a non-display region adjacent to the display region;
a plurality of scan lines extending along a horizontal direction;
a plurality of data lines extending along a vertical direction; and
a plurality of pixel units defined by intersections of the scan lines and the data lines;
wherein the pixel units comprise display pixel units positioned in the display region and dummy pixel units positioned in the non-display region, the display pixel units comprise display pixel electrodes connected to the data lines, and the dummy pixel units comprise dummy pixel electrodes disconnected from the data lines, wherein each of the dummy pixel electrodes comprises a main trunk electrode;
wherein the data lines comprise a plurality of first data lines and at least one second data line, each first data line is positioned between two adjacent ones of the display pixel units, and the second data line is positioned between one of the display pixel units and one of the dummy pixel units;
wherein the second data line comprises a trunk portion and a branch portion, the trunk portion extends along the vertical direction, the branch portion extends directly from the second data line, and an orthographic projection of the branch portion on the non-display region overlaps the main trunk electrode of an adjacent one of the dummy pixel electrodes to form a first overlapping region;
wherein the second data line comprises a first portion and a second portion, the first portion is parallel to the first data lines, the second portion surrounds an opening region of a corresponding one of the dummy pixel units, and an orthographic projection of the first portion on the non-display region overlaps the main trunk electrode of one of the dummy pixel electrodes to form a second overlapping region;
the branch portion causes an increased length of the second data line than a length of each first data line; the increased length causes a greater resistive load on the second data line than each first data line, and the first and second overlapping regions cause a greater capacitive load on the second data line than each first data line; the greater resistive load and the greater capacitive load on the second data line relative to each first data line collectively control charging rates between the dummy pixel units and the display pixel units.
 
8. A display panel comprising an array substrate;
wherein the array substrate comprises:
a display region;
a non-display region adjacent to the display region;
a plurality of scan lines extending along a horizontal direction;
a plurality of data lines extending along a vertical direction; and
a plurality of pixel units defined by intersections of the scan lines and the data lines;
wherein the pixel units comprise display pixel units positioned in the display region and dummy pixel units positioned in the non-display region, the display pixel units comprise display pixel electrodes connected to the data lines, and the dummy pixel units comprise dummy pixel electrodes disconnected from the data lines, wherein each of the dummy pixel electrodes comprises a main trunk electrode;
wherein the data lines comprise a plurality of first data lines and at least one second data line, each first data line is positioned between two adjacent ones of the display pixel units, and the second data line is positioned between one of the display pixel units and one of the dummy pixel units;
wherein the second data line comprises a trunk portion and a branch portion, the trunk portion extends along the vertical direction, the branch portion extends directly from the second data line, and an orthographic projection of the branch portion on the non-display region overlaps the main trunk electrode of an adjacent one of the dummy pixel electrodes to form a first overlapping region;
wherein the second data line comprises a first portion and a second portion, the first portion is parallel to the first data lines, the second portion surrounds an opening region of a corresponding one of the dummy pixel units, and an orthographic projection of the first portion on the non-display region overlaps the main trunk electrode of one of the dummy pixel electrodes to form a second overlapping region;
the branch portion causes an increased length of the second data line than a length of each first data line; the increased length causes a greater resistive load on the second data line than each first data line, and the first and second overlapping regions cause a greater capacitive load on the second data line than each first data line; the greater resistive load and the greater capacitive load on the second data line relative to each first data line collectively control charging rates between the dummy pixel units and the display pixel units.