Organic light emitting display device and method of manufacturing the same

Patent metadata

Field	Value
Publication number	US-9927898-B2
Application number	US-201615209010-A
Country	US
Kind code	B2
Filing date	Jul 13, 2016
Priority date	Oct 6, 2015
Publication date	Mar 27, 2018
Grant date	Mar 27, 2018

Abstract

An organic light emitting display device includes a substrate including a light-emitting region and a reflection region, a plurality of sensing patterns disposed in the light-emitting region and the reflection region, and including a material having a first reflectivity, and a reflection pattern disposed in the reflection region, and including a material having a second reflectivity, and overlapping the plurality of sensing patterns.

First claim

What is claimed is:

1. An organic light emitting display device comprising:
a substrate comprising a light-emitting region and a reflection region;
a plurality of sensing patterns disposed in an area corresponding to the light-emitting region and the reflection region, and comprising a material having a first reflectivity; and
a reflection pattern disposed in an area corresponding to the reflection region, and comprising a material having a second reflectivity, and overlapping the plurality of sensing patterns.

2. The organic light emitting display device of claim 1 , further comprising:
a plurality of connection lines connected to the sensing patterns;
a sensing driver connected to the connection lines; and
an opposite substrate facing the substrate, and
wherein the plurality of sensing patterns is disposed on a first surface of the opposite substrate, the plurality of sensing patterns being disposed between the substrate and the opposite substrate, and the reflection pattern is disposed on the plurality of sensing patterns, and further comprising:
an insulation layer disposed between the plurality of sensing patterns and the reflection pattern.

3. The organic light emitting display device of claim 2 , wherein the reflection pattern is electrically connected to the substrate through a conductive adhesive member.

4. The organic light emitting display device of claim 1 , further comprising:
a plurality of connection lines connected to the sensing patterns;
a sensing driver connected to the connection lines; and
a thin film encapsulation layer disposed on the substrate, and
wherein the plurality of sensing patterns is disposed on the thin film encapsulation layer, and the reflection pattern is disposed on the plurality of sensing patterns, and further comprising:
an insulation layer disposed between the plurality of sensing patterns and the reflection pattern.

5. The organic light emitting display device of claim 1 , further comprising:
a plurality of connection lines connected to the sensing patterns;
a sensing driver connected to the connection lines; and
a first thin film encapsulation layer disposed on the substrate, and
wherein the plurality of sensing patterns is disposed on the first thin film encapsulation layer, and the reflection pattern is disposed on the plurality of sensing patterns, and further comprising:
a second thin film encapsulation layer disposed between the plurality of sensing patterns and the reflection pattern.

6. The organic light emitting display device of claim 1 , wherein the plurality of sensing patterns is classified as a plurality of sensing groups comprising a predetermined number of sensing patterns of the plurality of sensing patterns, and
when a touch signal is applied to the plurality of sensing patterns, a sensing group of the plurality of sensing groups to which the touch signal is applied is detected, and an accurate touch position in the sensing group to which the touch signal is applied is detected.

7. The organic light emitting display device of claim 6 , when the touch signal is applied to the sensing group, a signal having the same signal as the touch signal is applied to the reflection pattern.

8. The organic light emitting display device of claim 6 , wherein the reflection pattern comprises a plurality of sub-reflection patterns having an area corresponding to an area of one sensing group of the plurality of sensing groups, and
when the touch signal is applied to the sensing group, a signal having the same signal as the touch signal is applied to a sub-reflection pattern of the plurality of sub-reflection patterns overlapping the sensing group to which the touch signal is applied.

9. The organic light emitting display device of claim 1 , wherein the reflection pattern comprises a plurality of sub-reflection patterns having an area corresponding to an area of a predetermined number of sensing patterns of the plurality of sensing patterns, and
wherein a sub-reflection pattern of the plurality of sub-reflection patterns senses a touch position of a wide range, and after the sub-reflection pattern senses the touch position, the sensing pattern senses an accurate touch position.

10. The organic light emitting display device of claim 1 , wherein the reflection pattern comprises a plurality of sub-reflection patterns having an area corresponding to an area of one sensing pattern, and
wherein one sub-reflection pattern of the plurality of sub-reflection patterns is electrically connected to one sensing pattern.

11. A method of manufacturing an organic light emitting display device comprising a substrate comprising a light-emitting region and a reflection region, the method comprising:
forming a plurality of sensing patterns comprising a material having a first reflectivity on the light-emitting region and the reflection region; and
forming a reflection pattern comprising a material having a second reflectivity on the reflection region, the reflection pattern overlapping the plurality of sensing patterns.

12. The method of claim 11 , wherein the forming the plurality of sensing patterns and the forming the reflection pattern comprise:
forming the plurality of sensing patterns on a first surface of an opposite substrate facing the substrate;
forming an insulation layer on the plurality of sensing patterns; and
forming the reflection pattern on the insulation layer,
wherein the plurality of sensing patterns and the reflection pattern are disposed between the substrate and the opposite substrate.

13. The method of claim 12 , further comprising:
electrically connecting the reflection pattern to the substrate by a conductive adhesive member.

14. The method of claim 11 , wherein the forming the plurality of sensing patterns and the forming the reflection pattern comprise:
forming a thin film encapsulation layer on the substrate;
forming the plurality of sensing patterns on the thin film encapsulation layer;
forming an insulation layer on the plurality of sensing patterns; and
forming the reflection pattern on the insulation layer.

15. The method of claim 11 , wherein the forming the plurality of sensing patterns and the forming the reflection pattern comprise:
forming a first thin film encapsulation layer on the substrate;
forming the plurality of sensing patterns on the first thin film encapsulation layer;
forming a second thin film encapsulation layer comprising the same material as that of the first thin film encapsulation layer on the plurality of sensing patterns; and
forming the reflection pattern on the second thin film encapsulation layer.

16. The method of claim 11 , wherein the plurality of sensing patterns is classified as a plurality of sensing groups comprising a predetermined number of sensing patterns of the plurality of sensing patterns, and
when a touch signal is applied to the plurality of sensing patterns, a sensing group of the plurality of sensing groups to which the touch signal is applied is detected, and an accurate touch position in the sensing group to which the touch signal is applied is detected.

17. The method of claim 16 , when the touch signal is applied to the sensing group, a signal having the same signal as the touch signal is applied to the reflection pattern.

18. The method of claim 16 , wherein the reflection pattern comprises a plurality of sub-reflection patterns having an area corresponding to an area of one sensing group of the plurality of sensing groups, and
when the touch signal is applied to the sensing group, a signal hav

Assignees

• Samsung Display Co Ltd

Inventors

• Bok Seung-Lyong
• Seo Young-Seok
• Kim Mu-Gyeom

Classifications

• G06F2203/04103

  Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices · CPC title

• G06F3/0412 Primary

  Digitisers structurally integrated in a display · CPC title

• G06F3/0448

  Details of the electrode shape, e.g. for enhancing the detection of touches, for generating specific electric field shapes, for enhancing display quality · CPC title

• H01L51/5237

  Electricity · mapped topic

• H01L2227/323

  Electricity · mapped topic