Electronic device

Patent metadata

Field	Value
Publication number	US-11775121-B2
Application number	US-202016933846-A
Country	US
Kind code	B2
Filing date	Jul 20, 2020
Priority date	Sep 29, 2017
Publication date	Oct 3, 2023
Grant date	Oct 3, 2023

Abstract

An electronic device includes a window having a modulus of about 55 GPa to about 80 GPa, an panel including an electronic element, and a plurality of adhesive layers between the window and the panel, wherein a sum of thicknesses of the adhesive layers is less than about 200 μm, wherein the adhesive layers include a first adhesive layer contacting the panel, and a second adhesive layer contacting the window, and wherein a thickness of the first adhesive layer is equal to or less than about ½ of the sum of the thicknesses of the adhesive layers.

First claim

What is claimed is:

1. An electronic device comprising:
a window;
a panel comprising:
a base layer; and
a display element on the base layer for displaying an image;

at least three adhesive layers between the window and the panel, and comprising:
a first adhesive layer contacting the panel; a second adhesive layer contacting the window; and a third adhesive layer between the first adhesive layer and the second adhesive layer; and

a first additional member and a second additional member between the panel and the window, and respectively being located on opposite sides of the third adhesive layer,
wherein a sum of thicknesses of the adhesive layers is less than 200 μm,
wherein the second additional member comprises an input sensing member for sensing an external touch and is disposed on the first additional member, and
wherein the thickness of the second adhesive layer is larger than each of those of the first adhesive layer and the third adhesive layer.

2. The electronic device of claim 1 , wherein thickness of the first adhesive layer is equal to or less than ½ of the sum of the thicknesses of the adhesive layers.

3. The electronic device of claim 1 , wherein the window has a modulus of 55 GPa to 85 GPa.

4. An electronic device comprising:
a window;
a panel comprising:
a base layer; and
a display element on the base layer for displaying an image;

adhesive layers between the window and the panel; and
a first additional member disposed on the panel; and
a second additional member between the panel and the window,
wherein the adhesive layers comprise:
a first adhesive layer contacting the panel;
a second adhesive layer between the window and the first adhesive layer and contacting the window; and
a third adhesive layer between the first adhesive layer and the second adhesive layer,

wherein a thickness of the first adhesive layer is equal to or less than ½ of a sum of thicknesses of the adhesive layers,
wherein the first additional member comprises an optical member comprising a polarizing film, an anti-reflection film, or a phase difference film,
wherein the second additional member comprises an input sensing member for sensing an external touch and is disposed on the first additional member, and
wherein the thickness of the second adhesive layer is larger than each of those of the first adhesive layer and the third adhesive layer.

5. The electronic device of claim 4 , wherein each of the first additional member and the second additional member comprises a transparent resin, and
wherein the third adhesive layer is between the first additional member and the second additional member.

6. The electronic device of claim 4 , wherein the sum of the thicknesses of the adhesive layers is less than 200 μm, and is equal to or greater than 75 μm.

7. The electronic device of claim 4 , further comprising:
a protective panel on the window; and
an upper adhesive layer between the protective panel and the window to couple the protective panel and the window to each other.

8. The electronic device of claim 4 , wherein the window comprises a glass having a modulus of 55 GPa to 85 GPa.

9. The electronic device of claim 4 , wherein the window has a thickness of 80 μm or less.

10. The electronic device of claim 4 , wherein the second additional member is located between the second adhesive layer and the third adhesive layer and comprises a supplementary member.

11. The electronic device of claim 10 , wherein the supplementary member comprises a transparent resin.

12. The electronic device of claim 4 , wherein the panel comprises:
a base substrate having modulus of 1 GPa to 10 GPa;
a pixel defining layer on a front surface of the base substrate and comprising a plurality of pixels; and
an encapsulation layer covering the pixel defining layer, and
wherein the panel is configured to display an image on a front surface thereof.

13. The electronic device of claim 4 , wherein a folding axis is defined on a back surface of the panel,
wherein the folding axis is parallel to the back surface of the panel, and
wherein the panel and the window are foldable along the folding axis.

14. An electronic device comprising: a panel, foldable along a folding axis extending in one direction, comprising: a base layer; and a display element on the base layer for displaying an image; a window on a front surface of the panel; a first additional member between the panel and the window; a second additional member between the first additional member and the window, wherein the second additional member comprises an optical member comprising a polarizing film, an anti-reflection film, or a phase difference film and the first additional member comprises an input sensing member for sensing an external touch; and a plurality of adhesive layers between the window and the panel, and comprising: a first adhesive layer on the panel; a second adhesive layer between the first adhesive layer and the window, and contacting an upper surface of the second additional member; and a third adhesive layer between the first additional member and the second additional member, and contacting a lower surface of the second additional member, wherein a sum of thicknesses of the adhesive layers is between 75 um and 200 um, wherein a thickness of the first adhesive layer is equal to or less than ½ of the sum of the thicknesses of the adhesive layers, and wherein the thickness of the second adhesive layer is larger than each of those of the first adhesive layer and the third adhesive layer.

15. An electronic device comprising: a panel foldable along a folding axis extending in one direction, and comprising: a base layer; and a display layer on the base layer for displaying an image; a window on a front surface of the panel; a protective layer on a front surface of the window; a lower panel on a back surface of the panel; a first additional member disposed on the panel and a second additional member between the panel and the window; and a plurality of adhesive layers between the window and the lower panel, and comprising: a first adhesive layer disposed on the panel: a second adhesive layer disposed between the first adhesive layer and the window; a third adhesive layer between the first additional member and the second additional member; and a fourth adhesive layer between the panel and the lower panel, wherein a sum of thicknesses of the adhesive layers is less than 200 um, wherein a thickness of the first adhesive layer is equal to or less than ½ of the sum of the thicknesses of the adhesive layers, and wherein the first additional member comprises an input sensing member for sensing an external touch, and wherein the thickness of the second adhesive layer is larger than each of those of the first adhesive layer and the third adhesive layer.

16. The electronic device of claim 15 , further comprising an optical member between the panel and the window,
wherein the third adhesive layer is between the optical member and the input sensing member.

17. The electronic device of claim 15 , wherein the protective layer comprises at least one of polycarbonate (PC), polyethyleneterephthalate (PET), or thermoplastic polyurethane (TPU).

18. The electronic device of claim 15 , wherein the window comprises:
a first layer including a glass; and
a second layer including a transparent resin and having a modulus that is lower than that of the first layer, and
wherein a sum of thicknesses of the first and second layers is equal to or less than 80 μm.

Assignees

• Samsung Display Co Ltd

Inventors

• Shin Jaiku
• Ryou Hansun
• Jung Soyoun
• Han Jiwon
• Seo Dongwoo
• Oh Youngeun

Classifications

• G06F3/0443 Primary

  using a single layer of sensing electrodes · CPC title

• G06F1/1652 Primary

  the display being flexible, e.g. mimicking a sheet of paper, or rollable · CPC title

• H10K2102/311

  Flexible OLED · CPC title

• H10K77/111

  Flexible substrates · CPC title

• G06F2203/04102

  Flexible digitiser, i.e. constructional details for allowing the whole digitising part of a device to be flexed or rolled like a sheet of paper · CPC title