Touch screen and mobile terminal including same

• US 9,501,186 B2
• Filed: 05/07/2014
• Issued: 11/22/2016
• Est. Priority Date: 07/12/2013
• Status: Active Grant

• Current Assignee: Xiaomi Inc. (Xiaomi Corp.)
• Original Assignee: Xiaomi Inc. (Xiaomi Corp.)
• Inventors: Gao, Yuan, Pi, Xiaohui, Jiao, Xiaogang
• Primary Examiner(s): Chow, Van
• Application Number:
  US14/271,613
• Publication Number:
  US 20150015804A1
• Time in Patent Office: 930 Days
• US Class Current: 1/1
• CPC Class Codes: G06F 3/0443 using a single layer of sensing electrodes

Abstract

A touch screen, including: at least two cover glasses; a flexible film; a coating layer coating the flexible film; a transparent bonding layer bonding the flexible film that is coated with the coating layer to the at least two cover glasses; and a flexible printed circuit board electrically connected to the coating layer.

Claims

1. A touch screen, comprising:

at least two cover glasses;

a flexible film;

a coating layer coating the flexible film;

a transparent bonding layer bonding the flexible film that is coated with the coating layer to the at least two cover glasses; and

a flexible printed circuit board electrically connected to the coating layer;

wherein the at least two cover glasses comprise;

a main cover glass; and

a first auxiliary cover glass;

wherein a first side of the main cover glass is fixedly connected to a first side of the first auxiliary cover glass, and a surface of the main cover glass and a surface of the first auxiliary cover glass form a first angle therebetween.

2. The touch screen according to claim 1, wherein the coating layer is an indium tin oxide layer.

3. The touch screen according to claim 1, wherein the transparent bonding layer bonds the flexible film that is coated with the coating layer to the main cover glass and the first auxiliary cover glass, and the coating layer is located between the flexible film and the transparent bonding layer.

4. The touch screen according to claim 1, wherein the at least two cover glasses further comprise:

a second auxiliary cover glass;

wherein

a second side of the main cover glass is fixedly connected to a first side of the second auxiliary cover glass, and the surface of the main cover glass and a surface of the second auxiliary cover glass form a second angle therebetween.

5. The touch screen according to claim 1, wherein the flexible film is a polyester film.

6. The touch screen according to claim 1, wherein the transparent bonding layer is an optically clear adhesive layer.

7. The touch screen according to claim 1, further comprising:

a spacer bar for connecting the main cover glass to the first auxiliary cover glass.

8. The touch screen according to claim 7, wherein the spacer bar is one of a plastic spacer bar, a metal spacer bar, or a rubber spacer bar.

9. The touch screen according to claim 1, wherein the coating layer is plated on its four sides with electrodes, and is connected to the flexible printed circuit board through the electrodes.

10. A mobile terminal, comprising:

a processor; and

a touch screen coupled to the processor, wherein the touch screen comprises;

at least two cover glasses;

a flexible film;

a coating layer coating the flexible film;

a transparent bonding layer bonding the flexible film that is coated with the coating layer to the at least two cover glasses; and

a flexible printed circuit board electrically connected to the coating layer;

wherein the at least two cover glasses comprise;

a main cover glass; and

a first auxiliary cover glass;

wherein a first side of the main cover glass is fixedly connected to a first side of the first auxiliary cover glass, and a surface of the main cover glass and a surface of the first auxiliary cover glass form a first angle therebetween.

11. The mobile terminal according to claim 10, wherein the coating layer is an indium tin oxide layer.

12. The mobile terminal according to claim 10, wherein the transparent bonding layer bonds the flexible film that is coated with the coating layer to the main cover glass and the first auxiliary cover glass, and the coating layer is located between the flexible film and the transparent bonding layer.

13. The mobile terminal according to claim 10, wherein the at least two cover glasses further comprise:

a second auxiliary cover glass;

wherein

a second side of the main cover glass is fixedly connected to a first side of the second auxiliary cover glass, and the surface of the main cover glass and a surface of the second auxiliary cover glass form a second angle therebetween.

14. The mobile terminal according to claim 10, wherein the flexible film is a polyester film.

15. The mobile terminal according to claim 10, wherein the transparent bonding layer is an optically clear adhesive layer.

16. The mobile terminal according to claim 10, wherein the touch screen further comprises:

a spacer bar for connecting the main cover glass to the first auxiliary cover glass.

17. The mobile terminal according to claim 16, wherein the spacer bar is one of a plastic spacer bar, a metal spacer bar, or a rubber spacer bar.

18. The mobile terminal according to claim 10, wherein the coating layer is plated on its four sides with electrodes, and is connected to the flexible printed circuit board through the electrodes.