EP-4739055-A1 - DISPLAY DEVICE INCLUDING PANEL PADS IN A NON-DISPLAY REGION AND ELECTRONIC DEVICE INCLUDING THE SAME

Abstract

A display device includes a substrate having a display area and a non-display area proximate to the display area. A thin-film transistor is disposed on the substrate. A light-emitting element is disposed within the display area on the substrate and is electrically connected to the thin-film transistor. The non-display area includes a pad area in which a plurality of panel pads arranged in a first direction are disposed. A first panel pad group and a second panel pad group are arranged in the first direction are disposed in the pad area. The first panel pad group includes first panel pads having a first predetermined distance between adjacent first panel pads. The second panel pad group includes second panel pads having a second predetermined distance between adjacent second panel pads. The first predetermined distance is different from the second predetermined distance.

Inventors

• LEE, Seeook
• KANG, EUI JEONG
• KO, HYUNSEOK
• LEE, DONG-YOUB
• WON, CHANGWOO
• HWANG, Jinuk

Assignees

• Samsung Display Co., Ltd.

Dates

Publication Date

20260506

Application Date

20251031

Claims (15)

1. A display device, comprising: a substrate comprising a display area and a non-display area proximate to the display area; a thin-film transistor disposed on the substrate; and a light-emitting element disposed within the display area on the substrate and electrically connected to the thin-film transistor, wherein the non-display area comprises a pad area in which a plurality of panel pads arranged in a first direction are disposed, wherein a first panel pad group and a second panel pad group arranged in the first direction are disposed in the pad area, wherein the first panel pad group comprises first panel pads having a first predetermined distance between adjacent first panel pads, wherein the second panel pad group comprises second panel pads having a second predetermined distance between adjacent second panel pads, and wherein the first predetermined distance is different from the second predetermined distance.
2. The display device of claim 1, wherein a third panel pad group comprising third panel pads arranged in the first direction and having a third predetermined distance between adjacent third panel pads is further disposed in the pad area, wherein the third predetermined distance is different from each of the first predetermined distance and the second predetermined distance.
3. The display device of claim 2, wherein the first panel pad group, the second panel pad group, and the third panel pad group are sequentially arranged in the first direction in the pad area.
4. The display device of claim 2 or 3, wherein the first predetermined distance and the third predetermined distance are each less than the second predetermined distance.
5. The display device of claim 4, wherein the first panel pad group and/or the third panel pad group are electrically connected to a touch line.
6. The display device of claim 1, wherein at least two panel pads among the first panel pads and the second panel pads are inclined without being parallel to each other.
7. The display device of any one of the preceding claims, wherein upper ends of the first and second panel pads in a second direction perpendicular to the first direction are disposed colinearly in the first direction.
8. The display device of claim 1, wherein the first panel pad group comprises first panel pads each having a first predetermined width, wherein the second panel pad group comprises second panel pads each having a second predetermined width, and wherein the first predetermined width is different from the second predetermined width.
9. The display device of claim 8, wherein a third panel pad group comprising third panel pads arranged in the first direction and each having a third predetermined width is further disposed in the pad area, wherein the third predetermined width is different from each of the first predetermined width and the second predetermined width.
10. The display device of claim 9, wherein the first panel pad group, the second panel pad group, and the third panel pad group are sequentially arranged in the first direction in the pad area, and/or wherein the first predetermined width and the third predetermined width are each less than the second predetermined width.
11. The display device of any one of claims 8 to 10, wherein the distance between the first panel pads is different from the distance between the second panel pads.
12. The display device of any one of claims 8 to 11, wherein at least two panel pads among the first panel pads and the second panel pads are inclined without being parallel to each other.
13. The display device of any one of claims 8 to 12, wherein first ends of the first panel pad group and the second panel pad group, which are closest to the display area, are narrower than second ends of the first panel pad group and the second panel pad group, which are closest to an edge of the substrate, and wherein opposite terminals of the first and second panel pads in a second direction perpendicular to the first direction are disposed colinearly in the first direction.
14. The display device of any one of the preceding claims, further comprising a connection circuit board having a plurality of connection pads arranged in the first direction, wherein a first connection pad group and a second connection pad group arranged in the first direction are disposed on the connection circuit board, wherein the first connection pad group comprises first connection pads having a fourth predetermined distance between adjacent first connection pads, wherein the second connection pad group comprises second connection pads having a fifth predetermined distance between adjacent second connection pads, and wherein the first connection pads are electrically connected to the first panel pad group, and the second connection pads are electrically connected to the second panel pad group, optionally wherein the fourth predetermined distance is different from the fifth predetermined distance.
15. An electronic device, comprising: a controller configured to generate a scan input signal; a power module configured to generate a scan input voltage; a display device according to any one of the preceding claims.

Description

CROSS-REFERENCE TO RELATED APPLICATION This application claims priority to Korean Patent Application No. 10-2024-0153599, filed on 1 November 2024 in the Korean Intellectual Property Office. TECHNICAL FIELD The present disclosure relates to a display device and, more specifically, to a display device including panel pads in a non-display region and an electronic device including the same. DISCUSSION OF THE RELATED ART Typically, a display device consists of multiple electronic components. For example, electronic devices such as mobile phones, laptop computers, and televisions contain an electro-optical panel that generates images, along with a main circuit board and connection circuit boards that facilitate signal transmissions. The connection circuit board may be electrically connected to the display panel, transmitting the necessary signals for display operation. To establish this connection, pads on both the connection circuit board and the display panel are bonded together. As display regions have expanded in modem devices, the available space for the connection circuit board has decreased. Consequently, reducing the size of the connection circuit board has become necessary to accommodate this change while maintaining functionality. SUMMARY A display device includes a substrate having a display area and a non-display area proximate to the display area. A thin-film transistor is disposed on the substrate. A light-emitting element is disposed within the display area on the substrate and is electrically connected to the thin-film transistor. The non-display area includes a pad area in which a plurality of panel pads arranged in a first direction are disposed. A first panel pad group and a second panel pad group are arranged in the first direction are disposed in the pad area. The first panel pad group includes first panel pads having a first predetermined distance between adjacent first panel pads. The second panel pad group includes second panel pads having a second predetermined distance between adjacent second panel pads. The first predetermined distance is different from the second predetermined distance. A third panel pad group including third panel pads arranged in the first direction and having a third predetermined distance between adjacent third panel pads may be further disposed in the pad area. The third predetermined distance may be different from each of the first predetermined distance and the second predetermined distance. The first panel pad group, the second panel pad group, and the third panel pad group may be sequentially arranged in the first direction in the pad area. The first predetermined distance and the third predetermined distance may each be less than the second predetermined distance. The first panel pad group and/or the third panel pad group may be electrically connected to a touch line. At least two panel pads among the first panel pads and the second panel pads may be inclined without being parallel to each other. Upper ends of the panel pads in a second direction perpendicular to the first direction may be disposed colinearly in the first direction. A first width, which is a width of the first panel pad, may be different from a second width, which is a width of the second panel pad. The display device may further include a connection circuit board having a plurality of connection pads arranged in the first direction. A first connection pad group and a second connection pad group may be arranged in the first direction and may be disposed on the connection circuit board. The first connection pad group may include first connection pads having a fourth predetermined distance between adjacent first connection pads. The second connection pad group may include second connection pads having a fifth predetermined distance between adjacent second connection pads. Each of the first connection pads may overlap and may be electrically connected to a corresponding one of the first panel pads in at least a region and each of the second connection pads may overlap and may be electrically connected to a corresponding one of the second panel pads in at least a region. The fourth predetermined distance may be different from the fifth predetermined distance. A display device includes a substrate having a display area and a non-display area proximate to the display area. A thin-film transistor is disposed on the substrate. A light-emitting element is disposed within the display area on the substrate and is electrically connected to the thin-film transistor. The non-display area includes a pad area in which a plurality of panel pads arranged in a first direction are disposed. A first panel pad group and a second panel pad group arranged in the first direction are disposed in the pad area. The first panel pad group includes first panel pads having a first predetermined width with respect to each other. The second panel pad group includes second panel pads having a second predetermined width with