US-20260126882-A1 - DISPLAY DEVICE AND ELECTRONIC DEVICE INCLUDING THE SAME

Abstract

A display device includes a display panel having a first non-folding area, a second non-folding area, and a folding area between them. A digitizer is arranged under the display panel and overlaps the first and second non-folding areas, the digitizer including a loop coil. A metal layer is positioned under the digitizer, with a cushioning member arranged beneath the metal layer. A circuit board is located under the digitizer and is electrically connected to it. A circuit board lead is positioned on the circuit board, with a protection member arranged over the circuit board lead. The digitizer and circuit board are bonded by an anisotropic conductive film. The cushioning member includes a first cushioning layer with a first opening and a second cushioning layer beneath it, overlapping the first opening and having a second opening in an offset location.

Inventors

• Eunjeong JEON
• Eui Jeong KANG
• Hyunseok Ko
• Dong-Youb LEE
• JINUK HWANG

Assignees

• SAMSUNG DISPLAY CO., LTD.

Dates

Publication Date

20260507

Application Date

20250724

Priority Date

20241101

Claims (20)

1. 1 . A display device comprising: a display panel comprising a first non-folding area, a second non-folding area, and a folding area arranged between the first non-folding area and the second non-folding area; a lower member arranged under the display panel; a digitizer module arranged under the lower member; and a circuit board module arranged in a region under the digitizer module, wherein the lower member comprises a panel support that overlaps at least the first non-folding area and the second non-folding area, and the digitizer module comprises: a digitizer comprising a loop coil and overlapping the first non-folding area and the second non-folding area; a metal layer arranged under the digitizer; and a cushioning member arranged under the metal layer, and the circuit board module comprises: a circuit board electrically connected to the digitizer and arranged under the digitizer; a circuit board lead arranged on the circuit board; and a protection member arranged on the circuit board lead, and the digitizer module and the circuit board module are bonded by an anisotropic conductive film, and the cushioning member comprises a first cushioning layer having a first opening, and a second cushioning layer arranged under the first cushioning layer and overlapping the first opening, the second cushioning layer having a second opening.
2. 2 . The display device of claim 1 , wherein the circuit board lead extends beyond the protection member, and the circuit board extends further outward from the circuit board lead.
3. 3 . The display device of claim 1 , wherein the protection member at least partially overlaps a region of the anisotropic conductive film.
4. 4 . The display device of claim 1 , wherein an outer end of the protection member is located in the first opening.
5. 5 . The display device of claim 1 , wherein the anisotropic conductive film is positioned in a region that overlaps at least the circuit board lead within the first opening.
6. 6 . The display device of claim 1 , wherein the second opening includes a first area that overlaps the protection member and a second area adjacent to the first area, and a width of the first area is greater than a width of the second area.
7. 7 . The display device of claim 6 , wherein the anisotropic conductive film covers at least a part of the second area.
8. 8 . The display device of claim 6 , wherein an outer end of the circuit board is located on the second area or the second cushioning layer.
9. 9 . The display device of claim 6 , wherein an outer end of the circuit board lead corresponds to an inner end of the second area.
10. 10 . An electronic device comprising: an input module; a memory storing at least one program; a processor configured to operate by executing the at least one program; a display device; and a power module configured to supply power to the display device, wherein the processor is further configured to control the input module to obtain data and control the display device to visually display the data, and the display device comprises: a display module comprising a first non-folding area, a second non-folding area, and a folding area arranged between the first non-folding area and the second non-folding area; a lower member arranged under the display module; a digitizer module arranged under the lower member; and a circuit board module arranged in a region under the digitizer module, wherein the lower member comprises a panel support that overlaps at least the first non-folding area and the second non-folding area, and the digitizer module comprises: a digitizer comprising a loop coil and overlapping the first non-folding area and the second non-folding area; a metal layer arranged under the digitizer; and a cushioning member arranged under the metal layer, and the circuit board module comprises: a circuit board electrically connected to the digitizer and arranged under the digitizer; a circuit board lead arranged on the circuit board; a protection member arranged on the circuit board lead; and an anisotropic conductive film bonding the digitizer module and the circuit board module, wherein the cushioning member comprises a first cushioning layer having a first opening, and a second cushioning layer arranged under the first cushioning layer and overlapping the first opening, the second cushioning layer having a second opening.
11. 11 . The electronic device of claim 10 , further comprising an embedded module, wherein the embedded module comprises: a sensor module configured to detect an input and generate data corresponding to the input; an antenna module configured to exchange the data with an external electronic device; and an audio output module, wherein the processor is further configured to control the audio output module to output the data audibly.
12. 12 . The electronic device of claim 10 , further comprising an external module, wherein the external module comprises: a camera module configured to capture an image; a light module configured to output light; and a communication module configured to exchange the data between the electronic device and an external electronic device.
13. 13 . The electronic device of claim 10 , wherein the circuit board lead extends beyond the protection member, and the circuit board extends further outward from the circuit board lead.
14. 14 . The electronic device of claim 10 , wherein the protection member at least partially overlaps a region of the anisotropic conductive film.
15. 15 . The electronic device of claim 10 , wherein an outer end of the protection member is located in the first opening.
16. 16 . The electronic device of claim 10 , wherein the anisotropic conductive film is positioned in a region that overlaps at least the circuit board lead in the first opening.
17. 17 . The electronic device of claim 10 , wherein the second opening includes a first area that overlaps the protection member and a second area adjacent to the first area, and a width of the first area is greater than a width of the second area.
18. 18 . The electronic device of claim 17 , wherein the anisotropic conductive film covers at least a part of the second area.
19. 19 . The electronic device of claim 17 , wherein an outer end of the circuit board is located on the second area or the second cushioning layer and an outer end of the circuit board lead corresponds to an inner end of the second area.
20. 20 . A display device comprising: a display panel comprising a first non-folding area, a second non-folding area, and a folding area arranged between the first non-folding area and the second non-folding area; a digitizer arranged under the display panel; a circuit board electrically connected to the digitizer and arranged under the digitizer; a circuit board lead arranged on the circuit board; a metal layer arranged under the digitizer; a protection member arranged on the circuit board lead; an anisotropic conductive film bonding the digitizer to the circuit board; and a cushioning member arranged under the metal layer, the cushioning member comprising: a first cushioning layer having a first opening; and a second cushioning layer arranged under the first cushioning layer, overlapping the first opening, and having a second opening offset from the first opening.

Description

CROSS-REFERENCE TO RELATED APPLICATION This U.S. patent application claims priority under 35 U.S.C. § 119 to Korean Patent Application No. 10-2024-0153567, filed on Nov. 1, 2024, in the Korean Intellectual Property Office, the disclosure of which is incorporated by reference in its entirety herein. 1. TECHNICAL FIELD The present disclosure is directed to a display device and an electronic device including the same, and more particularly, to a display device with enhanced surface quality and an electronic device including the display device. 2. Discussion of Related Art A display device includes a display area that is activated by an electrical signal. The display device may detect an input applied from outside through the display area and at the same time, display various images to provide information to a user. The display device may be made foldable and retain its ability to detect the input if it is designed using flexible Organic Light Emitting Diode panels and combined with bendable touch sensor technology. The display device may include a digitizer that detects and processes touch inputs. For example, the digitizer may convert touch gestures into electrical signals for allowing the display device to respond accordingly. A bonding process may be used to bond the digitizer to other components during manufacture of the display device. However, deformation or indentation of the digitizer may occur during this bonding process, which may cause touch sensitivity issues, visible screen defects and structural weaknesses. SUMMARY At least one embodiment of the present disclosure provides a display device having enhanced surface quality when a digitizer and a sensing circuit board are pressed, and an electronic device including the display device. However, the scope of the present disclosure is not limited thereto as additional features and enhancements may be provided by the embodiments. According to an aspect of the present disclosure, a display device includes a display panel including a first non-folding area, a second non-folding area, and a folding area arranged between the first non-folding area and the second non-folding area, a lower member arranged under the display panel, a digitizer module arranged under the lower member, and a circuit board module arranged in a region under the digitizer module, in which the lower member includes a panel support that overlaps at least the first non-folding area and the second non-folding area, and the digitizer module includes a digitizer including a loop coil and overlapping the first non-folding area and the second non-folding area, a metal layer arranged under the digitizer, and a cushioning member arranged under the metal layer, and the circuit board module includes a circuit board electrically connected to the digitizer and arranged under the digitizer, a circuit board lead arranged on the circuit board, and a protection member arranged on the circuit board lead, and the digitizer module and the circuit board module are bonded by an anisotropic conductive film, and the cushioning member includes a first cushioning layer having a first opening, and a second cushioning layer arranged under the first cushioning layer and overlapping the first opening, the second cushioning layer having a second opening. In an embodiment, the circuit board lead may extend beyond the protection member, and the circuit board may extend further outward from the circuit board lead. In an embodiment, the protection member may at least partially overlap a region of the anisotropic conductive film. In an embodiment, an outer end of the protection member may be located in the first opening. In an embodiment, the anisotropic conductive film may be positioned in a region that overlaps at least the circuit board lead in the first opening. In an embodiment, the second opening may include a first area that overlaps the protection member and a second area adjacent to the first area, and a width of the first area may be greater than a width of the second area. In an embodiment, the anisotropic conductive film may cover at least a part of the second area. In an embodiment, an outer end of the circuit board is located on the second area or the second cushioning layer. In an embodiment, an outer end of the circuit board lead corresponds to an inner end of the second area. According to another aspect of the present disclosure, an electronic device includes an input module, a memory storing at least one program, a processor configured to operate by executing the at least one program, a display device, and a power module configured to supply power to the display device, in which the processor is further configured to control the input module to obtain data and control the display device to visually display the data, and the display device includes a display module including a first non-folding area, a second non-folding area, and a folding area arranged between the first non-folding area and the second