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CN-121999685-A - Electronic equipment

CN121999685ACN 121999685 ACN121999685 ACN 121999685ACN-121999685-A

Abstract

The present application provides an electronic device including an electronic panel folded with respect to a folding axis extending along a first direction and including a light emitting element, and a window member on the electronic panel and folded with respect to the folding axis. The window member includes a first film on an uppermost side, a second film between the first film and the electronic panel, a first adhesive layer between the first film and the second film and attached to a rear surface of the first film, and a second adhesive layer between the electronic panel and the second film and attached to the electronic panel. Each of the first film and the second film has a modulus of about 5GPa or less.

Inventors

  • JIN ZHIXUN
  • Du Minxi
  • PU YINGXIANG
  • Bian Minsheng
  • AN CHENGGUO
  • LI GENXU
  • LI SHENGLI
  • ZHENG ZHEHAO

Assignees

  • 三星显示有限公司

Dates

Publication Date
20260508
Application Date
20251107
Priority Date
20241108

Claims (20)

  1. 1. An electronic device, comprising: An electronic panel folded with respect to a folding axis extending along a first direction and including a light emitting element, and A window member on the electronic panel and folded about the folding axis, Wherein the window member comprises: a first film on the uppermost side; A second film between the first film and the electronic panel; A first adhesive layer between the first film and the second film and attached to the back surface of the first film, and A second adhesive layer between the electronic panel and the second film and attached to the electronic panel, Wherein each of the first film and the second film has a modulus of 5GPa or less, and Wherein the modulus of the second film is greater than 700MPa.
  2. 2. The electronic device of claim 1, wherein the modulus of the second film is less than the modulus of the first film.
  3. 3. The electronic device of claim 1, wherein each of the first film and the second film has a thickness in a range of 20 μιη to 100 μιη.
  4. 4. The electronic device of claim 1, further comprising: A third film between the electronic panel and the second film, and A third adhesive layer between the third film and the second film and configured to bond the second film and the third film.
  5. 5. The electronic device of claim 4, wherein the modulus of the third film is 5GPa or less.
  6. 6. The electronic device of claim 4, wherein the modulus of the second film is less than the modulus of each of the first film and the third film.
  7. 7. The electronic device of claim 4, wherein the first to third films each have a thickness greater than 20 μιη and less than 100 μιη.
  8. 8. The electronic device of claim 4, wherein a thickness of the third film is greater than or equal to a thickness of each of the first film and the second film.
  9. 9. The electronic device of claim 8, wherein the thickness of the second film is less than or equal to the thickness of each of the first film and the third film.
  10. 10. The electronic device of claim 4, further comprising a fourth film between the third film and the second film, wherein the fourth film has a modulus of 5GPa or less.
  11. 11. The electronic device of claim 1, wherein each of the first film and the second film has a light transmittance of 90% or greater.
  12. 12. The electronic device of claim 1, wherein each of the first film and the second film comprises a resin.
  13. 13. The electronic device of claim 1, wherein the electronic panel comprises a color filter or a black matrix.
  14. 14. The electronic device of claim 1, wherein the window member is folded in a direction about the folding axis.
  15. 15. An electronic device, comprising: an electronic panel folded with respect to a folding axis extending along a first direction and including a light emitting element; a window member on the electronic panel and folded about the folding axis, and A housing disposed under the electronic panel and configured to provide an accommodation space for accommodating the electronic panel, Wherein the window member comprises: a first film on the uppermost side; a second film between the first film and the electronic panel, and A third film on the lowermost side and bonded to the electronic panel by an adhesive layer; wherein each of the first film to the third film has a modulus of 5GPa or less, and Wherein the second film has a modulus of 700MPa or greater.
  16. 16. The electronic device of claim 15, wherein the modulus of the second film is less than the modulus of each of the first film and the third film.
  17. 17. The electronic device of claim 16, wherein the modulus of the third film is greater than or equal to the modulus of the first film.
  18. 18. The electronic device of claim 15, wherein the first through third films each have a thickness greater than 20 μιη and less than 100 μιη.
  19. 19. The electronic device of claim 18, wherein the thickness of the first film is greater than or equal to the thickness of each of the second film and the third film.
  20. 20. The electronic device of claim 15, wherein the electronic panel further comprises a color filter or a black matrix.

Description

Electronic equipment Technical Field The present disclosure relates herein to electronic devices, and more particularly, to foldable electronic devices. Background Curved or foldable electronic devices are currently being developed. Such flexible electronic devices may include an electronic panel (such as a flexible display panel or a flexible touch panel) and a window covering the electronic panel. The window includes various functional layers. The functional layer may be curved, bent or folded together with the electronic panel. The layers that make up the electronic device have relatively flexible properties to bend, curve or fold. When the layer has a flexible property, reliability against stress due to bending can be improved, but reliability against external impact may be reduced. Disclosure of Invention The present disclosure provides a foldable electronic device having improved impact resistance and flexibility. Embodiments of the present disclosure provide an electronic device including an electronic panel folded about a folding axis extending along a first direction and including a light emitting element, and a window member on the electronic panel and folded about the folding axis. The window member includes a first film on an uppermost side, a second film between the first film and the electronic panel, a first adhesive layer between the first film and the second film and attached to a rear surface of the first film, and a second adhesive layer between the electronic panel and the second film and attached to the electronic panel. Each of the first film and the second film has a modulus of about 5GPa or less and the second film has a modulus of greater than about 700MPa. In embodiments, the modulus of the second film may be less than the modulus of the first film. Each of the first film and the second film may have a thickness in a range of about 20 μm to about 100 μm. In an embodiment, the electronic device may further include a third film between the electronic panel and the second film, and a third adhesive layer between the third film and the second film and bonding the second film and the third film. In embodiments, the modulus of the third film may be about 5GPa or less. In embodiments, the modulus of the second film may be less than the modulus of each of the first film and the third film. In an embodiment, the first to third films may each have a thickness of greater than about 20 μm and less than about 100 μm. In an embodiment, the thickness of the third film may be greater than or equal to the thickness of each of the first film and the second film. In an embodiment, the thickness of the second film may be less than or equal to the thickness of each of the first film and the third film. In an embodiment, the electronic device may further include a fourth film between the third film and the second film, wherein the fourth film has a modulus of about 5GPa or less. In an embodiment, each of the first film and the second film may have a light transmittance of about 90% or more. In an embodiment, each of the first film and the second film may include a resin. In an embodiment, the electronic panel may include a color filter or a black matrix. In an embodiment, the window member may be foldable in a direction about the folding axis. Embodiments of the present disclosure provide an electronic device including an electronic panel folded with respect to a folding axis extending along a first direction and including a light emitting element, a window member on the electronic panel and folded with respect to the folding axis, and a housing under the electronic panel and configured to provide an accommodation space for accommodating the electronic panel. The window member includes a first film on an uppermost side, a second film between the first film and the electronic panel, and a third film on a lowermost side and bonded to the electronic panel by an adhesive layer. Each of the first film to the third film has a modulus of about 5GPa or less, and the second film has a modulus of about 700MPa or greater. In embodiments, the modulus of the second film may be less than the modulus of each of the first film and the third film. In embodiments, the modulus of the third film may be greater than or equal to the modulus of the first film. In an embodiment, the first to third films may each have a thickness of greater than about 20 μm and less than about 100 μm. In an embodiment, the thickness of the first film may be greater than or equal to the thickness of each of the second film and the third film. In an embodiment, the electronic panel may further include a color filter or a black matrix. Drawings The accompanying drawings are included to provide a further understanding of the disclosure, and are incorporated in and constitute a part of this specification. The drawings illustrate embodiments of the present disclosure and, together with the description, serve to explain the principles of the disclosur