TOUCH-PANEL DISPLAY DEVICE

• US 20150331515A1
• Filed: 05/14/2015
• Published: 11/19/2015
• Est. Priority Date: 05/15/2014
• Status: Active Grant

• Current Assignee: TPK Touch Solutions (Xiamen) Inc. (TPK Holding Co., Ltd.)
• Original Assignee: TPK Touch Solutions (Xiamen) Inc. (TPK Holding Co., Ltd.)
• Inventors: Ye, Huilin, Yu, Jing, Chiu, Tsung-Ke, Wu, Xiaoyan
• Granted Patent: US 9,874,967 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: B32B 17/06 comprising glass as the main or only constituent of a layer, next to another layer of a specific material
• CPC Class Codes: B32B 17/1055 characterized by the resin layer, i.e. interlayer
• CPC Class Codes: B32B 2457/202 LCD, i.e. liquid crystal displays
• CPC Class Codes: B32B 2457/206 Organic displays, e.g. OLED
• CPC Class Codes: B32B 2457/208 Touch screens
• CPC Class Codes: B32B 27/08 of synthetic resin
• CPC Class Codes: G02F 1/13338 Input devices, e.g. touch panels
• CPC Class Codes: G02F 1/133528 Polarisers
• CPC Class Codes: G06F 2203/04103 Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
• CPC Class Codes: G06F 3/0412 Digitisers structurally integrated in a display
• CPC Class Codes: G06F 3/042 by opto-electronic means
• CPC Class Codes: G06F 3/0445 using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer
• CPC Class Codes: G09G 3/3208 organic, e.g. using organic light-emitting diodes [OLED]
• CPC Class Codes: G09G 3/36 using liquid crystals

Abstract

The present disclosure provides a touch-panel display device. The touch-panel display device comprises a substrate, a display module, a sensing module and a function layer. The substrate includes a first surface and a second surface on opposite sides of the substrate, respectively. The display module is proximal to the first surface of the substrate, and the sensing module is disposed between the display module and the substrate. The function layer, disposed on either the first surface or the second surface of the substrate, is configured to polarize light emitted from the display module towards the substrate.

Claims

1. A touch-panel display device, comprising:

a substrate including a first surface and a second surface on opposite sides of the substrate, respectively;

a display module proximal to the first surface of the substrate;

a sensing module between the display module and the substrate; and

a function layer, on either the first surface or the second surface of the substrate, configured to polarize light emitted from the display module toward the substrate.

2. The touch-panel display device of claim 1, wherein the display module includes a liquid crystal module comprising a first polarizer and a liquid crystal layer, and the function layer serves as a second polarizer for the liquid crystal module, the first polarizer being configured to polarize light incident upon the liquid crystal layer and the function layer being configured to polarize light emergent from the liquid crystal layer, wherein the polarization direction of the first polarizer is orthogonal to that of the function layer.

3. The touch-panel display device of claim 1, wherein the display module includes an organic light emitting diode (OLED) module comprising an organic light emitting layer, and the function layer serves as a polarizer for the OLED module and is configured to polarize light emergent from the organic light emitting layer.

4. The touch-panel display device of claim 3, wherein the polarizer includes a circular polarizer.

5. The touch-panel display device of claim 1, wherein the substrate is divided into a viewable area and a non-viewable area distinct from the viewable area, and the function layer only covers the viewable area.

6. The touch-panel display device of claim 1, wherein the substrate is divided into a viewable area and a non-viewable area distinct from the viewable area, and the function layer covers the viewable area and extends into the non-viewable area.

7. The touch-panel display device of claim 6, wherein the function layer extends a length of 0.1 millimeter (mm) to 0.2 mm from the viewable area into the non-viewable area of the substrate.

8. The touch-panel display device of claim 1, wherein the substrate is divided into a viewable area and a non-viewable area distinct from the viewable area, and the function layer covers the viewable area and the non-viewable area of the substrate.

9. The touch-panel display device of claim 1, wherein the further comprising a coating, wherein the coating includes one of an anti-split (AS) film, anti-glare (AG) film, anti-reflection (AR) film and anti-fingerprint (AF) film.

10. The touch-panel display device of claim 1, wherein the function layer includes an etched surface for diffuse reflection of light incident thereupon.

11. The touch-panel display device of claim 1, wherein the function layer includes a nano-coating for diffuse reflection of light incident thereupon.

12. The touch-panel display device of claim 1, wherein the sensing module includes a sensing electrode layer on the first surface of the substrate.

13. The touch-panel display device of claim 12, wherein the sensing electrode layer includes a material selected from one of metal oxides, nanometals, carbon nanotubes and graphene.

14. The touch-panel display device of claim 12, wherein the substrate includes an optically transmissive material selected from glass, polymethyl methacrylate (PMMA), polyvinyl chloride (PVC), polypropylene (PP), polyethylene terephthalate (PET), polyethylene naphthalate (PEN), polycarbonate (PC) and polystyrene (PS).

15. The touch-panel display device of claim 1 further comprising a first carrier between the substrate and the display module, wherein the sensing module includes a sensing electrode layer on the first carrier.

16. The touch-panel display device of claim 1 further comprising a first carrier between the substrate and the display module, and a second carrier between the first carrier and the display module, wherein the sensing module includes a first sensing electrode layer on the first carrier, and a second sensing electrode layer on the second carrier.

17. The touch-panel display device of claim 16, wherein at least one of the first sensing electrode layer or the second sensing electrode layer includes a material selected from one of metal oxides, nanometals, carbon nanotubes and graphene.

18. The touch-panel display device of claim 16, wherein at least one of the first carrier or the second carrier includes an optically transmissive material selected from glass, polymethyl methacrylate (PMMA), polyvinyl chloride (PVC), polypropylene (PP), polyethylene terephthalate (PET), polyethylene naphthalate (PEN), polycarbonate (PC) and polystyrene (PS).