US-12628520-B2 - Display panel and display device

US12628520B2US 12628520 B2US12628520 B2US 12628520B2US-12628520-B2

Abstract

A display panel and a display device are provided. The display panel includes an array substrate including a first column of pixel circuits, a second column of pixel circuits adjacently arranged in a second direction intersecting a first direction, and a third column of pixel circuits. A first data signal line and a first auxiliary signal line extending along the second direction are arranged between two columns of pixel circuits and the first auxiliary signal line is electrically connected to a third data signal line corresponding to the third column of pixel circuits through a first connection section in the first connection signal line extending in the first direction. A first gap formed between a first non-connection section in the first connection signal line and the first connection section is blocked by the first data signal line in a direction perpendicular to the display panel.

Inventors

Guoxing Chen

Assignees

Xiamen Tianma Display Technology Co., Ltd.

Dates

Publication Date: 20260512
Application Date: 20230706
Priority Date: 20230413

Claims (20)

1 . A display panel, comprising: an array substrate including multiple columns of pixel circuits arranged along a first direction and extending along a second direction, wherein the first direction intersects the second direction, the multiple columns of pixel circuits include a first column of pixel circuits and a second column of pixel circuits adjacently arranged in the second direction, and a third column of pixel circuits different from the first column of pixel circuits and the second column of pixel circuits; a first data signal line and a first auxiliary signal line extending along the second direction are arranged between the first column of pixel circuits and the second column of pixel circuits, the first auxiliary signal line is located a side of the data signal line adjacent to the third column of pixel circuits, the first data signal line is electrically connected to the first column of pixel circuits or the second column of pixel circuits, the first auxiliary signal line is electrically connected to a third data signal line corresponding to the third column of pixel circuits through a first connection section in the first connection signal line extending in the first direction, the first connection signal line further includes a first non-connection section, the first non-connection section is located on a side of the first auxiliary signal line away from the first connection section, a first gap is formed between the first connection section and the first non-connection section; and in a direction perpendicular to a plane where the display panel is located, the first gap is blocked by the first data signal line.
2 . The display panel according to claim 1 , wherein the first data signal line comprises: a first extension section and a second extension section connected to each other, wherein: in the direction perpendicular to the plane where the display panel is located, the first gap is blocked by the first data signal line along the second extension section; a width of the second extension section in a third direction is greater than a width of the first extension section in the third direction; and the third direction is perpendicular to the second direction.
3 . The display panel according to claim 1 , wherein: the first column of pixel circuits are located on a side of the second column of pixel circuits adjacent to the third column of pixel circuits; and the first data signal line is electrically connected to the first column of pixel circuits.
4 . The display panel according to claim 3 , wherein: a second data signal line extending in the second direction is also disposed between the first column of pixel circuits and the second column of pixel circuits; the second data signal line is located at a side of the first data signal line adjacent to the second column of pixel circuits; the second signal line is electrically connected to the second column of pixel circuits; the first auxiliary signal line is located on a side of the first data signal line and the second data signal line as a whole adjacent to the third column of pixel circuits.
5 . The display panel according to claim 4 , wherein: a second auxiliary signal line extending along the second direction is also disposed between the first column of pixel circuits and the second column of pixel circuits; and the second auxiliary signal line is located at a side of the first data signal line and the second data signal line as a whole away from the third column of pixel circuits.
6 . The display panel according to claim 1 , wherein: the first column of pixel circuits are located at a side of the second column of pixel circuits adjacent to the third column of pixel circuits; and the first data signal line is electrically connected to the second column of pixel circuits.
7 . The display panel according to claim 6 , wherein: a second data signal line extending in the second direction is also disposed between the first column of pixel circuits and the second column of pixel circuits; the second data signal line is located at a side of the first data signal line adjacent to the first column of pixel circuits; the second data signal line is electrically connected to the first column of pixel circuits; and the first auxiliary signal line is located between the first data signal line and the second data signal line.
8 . The display panel according to claim 7 , wherein: a second auxiliary signal line extending in the second direction is also disposed between the first column of pixel circuits and the second column of pixel circuits; and the second auxiliary signal line is also located between the first data signal line and between the second data signal line.
9 . The display panel according to claim 7 , wherein: a first symmetrical line extending along the second direction is located between the first column of pixel circuits and the second column of pixel circuits; the first column of pixel circuits and the second column of pixel circuits are mirrored along the symmetrical line; the first data signal line and the second data signal line are mirrored along the first symmetrical line; and the first auxiliary signal line is located on the first symmetrical line.
10 . The display panel according to claim 9 , wherein: the multiple columns of pixel circuits include a plurality of column repeating units arranged in the first direction; the plurality of column repeating units include two columns of pixel circuits adjacently arranged in the first direction; the two columns of pixel circuits respectively electrically connected a data signal line and an auxiliary signal line arranged between the two columns of the pixel circuits; a symmetrical line extending along the second direction is located between the two columns of pixel circuits; the two columns of pixel circuits and respective electrically connected data signal lines are mirrored along the symmetrical line between the two columns of pixel circuits and the auxiliary signal line between the two columns of pixel circuits is located on the symmetrical line between the two columns of pixel circuits; the first column pixel circuits and the second column of pixel circuits form a column repeating unit; the data signal line includes the first data signal line, the second data signal line and the third data signal line; the auxiliary signal line includes the first auxiliary signal line; the multiple columns of pixel circuits also form multiple rows of pixel circuits arranged along the second direction; a connection signal line extending along the first direction is arranged between two adjacent rows of pixel circuits; and the connection signal line includes the first connection signal line.
11 . The display panel according to claim 10 , wherein: the auxiliary signal line is located on a first metal layer; the connection signal line is located on a second metal layer; the first metal layer and the second metal layer are located in different layers; and along the direction perpendicular to the plane where the display panel is located, overlap areas between the auxiliary signal line and the connection signal line are connected through a via hole between the first metal layer and the second layer.
12 . The display panel according to claim 11 , wherein: the connection signal line also includes a second connection signal line; at least a portion of the first auxiliary signal line is electrically connected to the first section of in the first connection signal line after passing through the second connection signal line in the second direction; the second connection signal line includes a second non-connection section, a second connection section and a third non-connection section arranged in sequence in the first direction; the second connection section is electrically connected the first auxiliary signal line through the first via hole; there is a second gap between the second non-connection section and the second connection section; there is a third gap between the second connection section and the third non-connection section; and in the direction perpendicular to the plane where the display panel is located, the second gap is blocked by the second data signal line, and the third gap is blocked by the first data signal line.
13 . The display panel according to claim 11 , further comprising: a plurality of light-emitting elements located on one side of the array substrate, a light-emitting element of the plurality of light-emitting elements includes an anode layer, a light-emitting layer, and a cathode layer arranged in sequence in a direction away from the array substrate; the first auxiliary signal line includes a third connection section and a fourth non-connection section; the third connection section is electrically connected to the first connection section in the first connection signal line; a fourth gap is between the third connection section and the fourth non-connection section; and in a direction perpendicular to the plane where the display panel is located, the fourth gap is blocked by the anode layer.
14 . The display panel according to claim 13 , wherein: the auxiliary signal line further includes a third auxiliary signal line; at least a portion of the first connection section in the first connection signal line is electrically connected to the third data signal line after passing through the third auxiliary signal line in the first direction; the third auxiliary signal line includes a fifth non-connection section, a fourth connection section, and a sixth non-connection section sequentially arranged along the second direction; the fourth connection section is connected to the first connection section in the first data signal line through the first via hole; a fifth gap is between the fifth non-connection section and the fourth connection section; a sixth gap is between the fourth connection section and the sixth non-connection section; and in a direction perpendicular to the plane where the display panel is located, the fifth gap and the sixth gap are blocked by the anode layer.
15 . The display panel according to claim 10 , further comprising: a plurality of light-emitting elements located on one side of the array substrate, wherein: a light-emitting element of the plurality of light-emitting elements includes an anode layer, a light-emitting layer, and a cathode layer arranged in sequence in the direction away from the array substrate; the cathode layer is set as an entire layer and is connected to a constant potential; in each of the auxiliary signal lines and each of the connection signal lines, the non-connection sections except the connection sections electrically connected to the data signal lines are electrically connected to the cathode layer.
16 . The display panel according to claim 10 , wherein: a number F of data signal lines corresponding to F columns of pixel circuits are electrically connected to a number F of first auxiliary signal lines between other 2F columns of pixel circuits in a one-to correspondence through a first connection section in one first connection signal line corresponding the number F of data signal lines.
17 . The display panel according to claim 16 , comprising: a display area including a first display area and a second display area symmetrically arranged in the second direction; in a direction in which the first display area points to the second display area, the first display area is provided with a 1st column of pixel circuits to an NX-th column of pixel circuits; a data signal line corresponding to any one column of the pixel circuits in the 1st column of pixel circuits to the F column of pixel circuits is electrically connected to one of the first auxiliary signal lines between a Q-th column of pixel circuits to the (Q+2F−1)-th column of pixel circuits through the first connection section in the first connection signal line; and F<Q+ 2 F− 1< NX.
18 . The display panel according to claim 17 , wherein: in the direction in which the first display area points to the second display area, the pixel circuits in the Q-th column to the (Q+2F−1)-th column include a 1st to an F-th first auxiliary signal lines; the data signal line corresponding to an i-th column of pixel circuits is electrically connected to an (F+1−i)-th first auxiliary signal line through a first connection section in the first connection signal line; and I≤i≤F.
19 . The display panel according to claim 1 , wherein: the first connection section in the first connection signal line is electrically connected to the third data signal line through a first access signal line extending in the second direction; the third data signal line is located on a first metal layer; the first connection signal line and the first access signal line are both located on a second metal layer; the second metal layer and the first metal layer are arranged in different layers; the first connection section in the first connection signal line is electrically connected to the first access signal line on a same layer; the first access signal line is electrically connected to the third data signal line through a second via hole between the first metal layer and the second metal layer; a pixel circuit includes a plurality of thin-film transistors; the plurality of thin-film transistors include a first transistor; a first electrode of the first transistor is used to receive a data signal; the first electrode of the first transistor is located on a third metal layer; the third metal layer is located on a side of the second metal layer away from the first metal layer; and the third data signal line is also electrically connected to the first electrode of the first transistor through the second via hole.
20 . A display device, comprising: a display panel, including an array substrate, wherein the array substrate includes multiple columns of pixel circuits arranged along a first direction and extending in a second direction, the first direction intersects the second direction, the multiple columns of pixel circuits include a first column of pixel circuits and a second column of pixel circuits adjacently arranged in the second direction, and a third column of pixel circuits different from the first column of pixel circuits and the second column of pixel circuits; a first data signal line and a first auxiliary signal line extending along the second direction are arranged between the first column of pixel circuits and the second column of pixel circuits, the first auxiliary signal line is located a side of the data signal line adjacent to the third column of pixel circuits, the first data signal line is electrically connected to the first column of pixel circuits or the second column of pixel circuits, the first auxiliary signal line is electrically connected to a third data signal line corresponding to the third column of pixel circuits through a first connection section in the first connection signal line extending in the first direction, the first connection signal line further includes a first non-connection section, the first non-connection section is located on a side of the first auxiliary signal line away from the first connection section, a first gap is formed between the first connection section and the first non-connection section; and in a direction perpendicular to a plane where the display panel is located, the first gap is blocked by the first data signal line.

Description

CROSS-REFERENCE TO RELATED APPLICATION This application claims the priority of Chinese Patent Application No. 202310395024.0, filed on Apr. 13, 2023, the content of which is incorporated by reference in its entirety. TECHNICAL FIELD The present disclosure generally relates to the field of display technologies and, more particularly, relates to a display panel and a display device. BACKGROUND With the continuous development of display technologies, the frame of the display panel has become narrower and narrower. To reduce the bottom frame of the display panel, a portion of the fan-out lines may be arranged in the display area (i.e., “fanout in AA” or FIAA). However, in the existing FIAA display panel, metal wirings may be arranged with different densities in the FIAA area (display area that realizes FIAA connection) and the non-FIAA area (normal display area). The density difference of metal wirings makes the light reflected by the metal wirings be different, resulting in uneven visibility (i.e., Mura phenomena) in the FIAA area and non-FIAA area in the dark state and display state in the display. The disclosed display panels and display devices are direct to solve one or more problems set forth above and other problems in the arts. SUMMARY One aspect of the present disclosure provides a display panel. The display panel includes an array substrate. The array substrate includes multiple columns of pixel circuits arranged along a first direction and extending along a second direction. The first direction intersects the second direction, the multiple columns of pixel circuits include a first column of pixel circuits and a second column of pixel circuits adjacently arranged in the second direction, and a third column of pixel circuits different from the first column of pixel circuits and the second column of pixel circuits; a first data signal line and a first auxiliary signal line extending along the second direction are arranged between the first column of pixel circuits and the second column of pixel circuits, the first auxiliary signal line is located a side of the data signal line adjacent to the third column of pixel circuits, the first data signal line is electrically connected to the first column of pixel circuits or the second column of pixel circuits, the first auxiliary signal line is electrically connected to a third data signal line corresponding to the third column of pixel circuits through a first connection section in the first connection signal line extending in the first direction, the first connection signal line further includes a first non-connection section, the first non-connection section is located on a side of the first auxiliary signal line away from the first connection section, a first gap is formed between the first connection section and the first non-connection section; and in a direction perpendicular to a plane where the display panel is located, the first gap is blocked by the first data signal line. Another aspect of the present disclosure provides a display device. The display device includes a display panel. The display panel includes an array substrate. The array substrate includes multiple columns of pixel circuits arranged along a first direction and extending along a second direction. The first direction intersects the second direction, the multiple columns of pixel circuits include a first column of pixel circuits and a second column of pixel circuits adjacently arranged in the second direction, and a third column of pixel circuits different from the first column of pixel circuits and the second column of pixel circuits; a first data signal line and a first auxiliary signal line extending along the second direction are arranged between the first column of pixel circuits and the second column of pixel circuits, the first auxiliary signal line is located a side of the data signal line adjacent to the third column of pixel circuits, the first data signal line is electrically connected to the first column of pixel circuits or the second column of pixel circuits, the first auxiliary signal line is electrically connected to a third data signal line corresponding to the third column of pixel circuits through a first connection section in the first connection signal line extending in the first direction, the first connection signal line further includes a first non-connection section, the first non-connection section is located on a side of the first auxiliary signal line away from the first connection section, a first gap is formed between the first connection section and the first non-connection section; and in a direction perpendicular to a plane where the display panel is located, the first gap is blocked by the first data signal line. Other aspects of the present disclosure can be understood by those skilled in the art in light of the description, the claims, and the drawings of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS To illustrate the technical solutions