Display panel

Patent metadata

Field	Value
Publication number	US-10969892-B2
Application number	US-201916668241-A
Country	US
Kind code	B2
Filing date	Oct 30, 2019
Priority date	Nov 8, 2018
Publication date	Apr 6, 2021
Grant date	Apr 6, 2021

Abstract

A display panel comprises a light-emission elements array including a plurality of light-emission elements which corresponds to a plurality of pixel regions arranged in a display region; an encapsulating film covering the light-emission elements array; a touch sensor disposed over the encapsulating film; and a touch protective film covering the touch sensor, wherein the touch protective film includes a material containing core-shell structured particles.

First claim

What is claimed is:

1. A display panel comprising:
a light-emission elements array including a plurality of light-emission elements which corresponds to a plurality of pixel regions arranged in a display region;
an encapsulating film covering the light-emission elements array;
a touch sensor disposed on the encapsulating film; and
a touch protective film disposed on the encapsulating film and covering the touch sensor,
wherein the touch sensor comprises:
a touch interlayer insulating film disposed on the encapsulating film;
a plurality of first touch electrodes extending in a first direction; and
a plurality of second touch electrodes extending in a second direction perpendicular to the first direction,
wherein each of the plurality of first touch electrodes is connected to a first touch electrode pad via a first touch link which is disposed outside the display region,
wherein each of the plurality of second touch electrodes is connected to a second touch electrode pad via a second touch link which is disposed outside the display region,
wherein a portion of each of the first touch link and the second touch link are disposed on a sloped surface of the encapsulating film, thereby having a sloped surface corresponding to the sloped surface of the encapsulating film,
wherein each of the first touch link and the second touch link are partially covered by the touch protective film, and
wherein the touch protective film includes a material containing core-shell structured particles.

2. The display panel of claim 1 , wherein the core-shell structured particles include a core and a shell surrounding the core, wherein the core includes a metal oxide, and the shell includes a molecular sieve.

3. The display panel of claim 2 , wherein the metal oxide includes an oxide containing Ti or Fe, wherein the molecular sieve includes MCM-41 or SBA-15.

4. The display panel of claim 1 , wherein the material of the touch protective film includes at least one binder and a photosensitive agent.

5. The display panel of claim 4 , wherein the at least one binder provides adhesiveness to the touch protective film.

6. The display panel of claim 4 , wherein the at least one binder includes at least one of an alkali developable binder and a silicon based binder.

7. The display panel of claim 6 , wherein the photosensitive agent includes an oxime compound or a benzophenone compound.

8. The display panel of claim 1 , further comprising a polarizing film on the touch protective film and corresponding to the display region.

9. The display panel of claim 1 , wherein the plurality of first touch electrodes comprises: a plurality of first electrode patterns disposed over the touch interlayer insulating film and arranged in the first direction; and a plurality of first bridges connecting the plurality of first electrode patterns in the first direction, wherein the plurality of first bridge is disposed over the touch interlayer insulating film.

10. The display panel of claim 1 , wherein the plurality of second touch electrodes comprises: Response Under Non-final Office Action (F19-0425US001) a plurality of second electrode patterns disposed over the touch interlayer insulating film and spaced apart from the plurality of first electrode, and plurality of second electrode patterns arranged in the second direction; and a plurality of second bridges connecting the plurality of second electrode patterns adjacent to each other in the second direction, wherein the plurality of second bridge is disposed over the encapsulating film and is covered with the touch interlayer insulating film, and wherein the plurality of second bridge is connected to the plurality of second electrode patterns through a contact hole that passes through the touch interlayer insulating film.

11. A display panel comprising:
a light-emission elements array including a plurality of light-emission elements corresponding to a plurality of pixel regions arranged in a display region;
an encapsulating film disposed on the light-emission elements array;
a touch sensor disposed on the encapsulating film,
wherein the touch sensor comprises:
a touch interlayer insulating film disposed on the encapsulating film;
a plurality of first touch electrodes extending in a first direction; and
a plurality of second touch electrodes extending in a second direction perpendicular to the first direction; and
a touch protective film disposed on the encapsulating film and covering the touch sensor to prevent light emission loss through the touch sensor,
wherein each of the plurality of first touch electrodes is connected to a first touch electrode pad via a first touch link which is disposed outside the display region,
wherein each of the plurality of second touch electrodes is connected to a second touch electrode pad via a second touch link which is disposed outside the display region,
wherein a portion of each of the first touch link and the second touch link are disposed on a sloped surface of the encapsulating film, thereby having a sloped surface corresponding to the sloped surface of the encapsulating film,
wherein each of the first touch link and the second touch link are partially covered by the touch protective film, and
wherein the touch protective film includes core-shell structured particles that have a core and a shell surrounding the core, and the core includes a metal oxide and the shell includes a molecular sieve.

12. The display panel of claim 11 , wherein the metal oxide includes an oxide containing Ti or Fe, wherein the molecular sieve includes MCM-41 or SBA-15.

13. The display panel of claim 11 , wherein the touch protective film includes at least one binder and a photosensitive agent.

14. The display panel of claim 13 , wherein the at least one binder provides adhesiveness to the touch protective film.

15. The display panel of claim 13 , wherein the at least one binder includes at least one of an alkali developable binder and a silicon based binder.

16. The display panel of claim 13 , wherein the photosensitive agent includes an oxime compound or a benzophenone compound.

17. The display panel of claim 11 , further comprising a polarizing film on the touch protective film and corresponding to the display region.

18. The display panel of claim 11 , wherein the plurality of first touch electrodes comprises:
a plurality of first electrode patterns disposed above the touch interlayer insulating film and arranged in the first direction; and
a plurality of first bridges connecting the plurality of first electrode patterns in the first direction,
wherein the plurality of first bridge is disposed over the touch interlayer insulating film.

19. The display panel of claim 18 , wherein the plurality of second touch electrodes comprises:
a plurality of second electrode patterns disposed over the touch interlayer insulating film and spaced apart from the plurality of first electrode, and plurality of second electrode patterns arranged in the second direction; and
a plurality of second bridges connecting the plurality of second electrode patterns adjacent to each other in the second direction,
wherein the plurality of second bridge is disposed over the encapsulating film and is covered with the touch interlayer insulating film, and
wherein the plurality of second bridge is connected to the plurality of second electrode patterns through a contact hole that passes through the touch interlayer insulating film.

Assignees

• Lg Display Co Ltd

Inventors

• Kim Jangryang

Classifications

• H10H20/854

  characterised by their material, e.g. epoxy or silicone resins · CPC title

• Y02E10/549

  Organic PV cells · CPC title

• H10K59/40 Primary

  OLEDs integrated with touch screens · CPC title

• H10K30/88

  Passivation; Containers; Encapsulations · CPC title

• H10K59/12

  Active-matrix OLED [AMOLED] displays · CPC title