Display screen, display device and mobile terminal

• US 10,520,764 B2
• Filed: 12/27/2017
• Issued: 12/31/2019
• Est. Priority Date: 04/27/2017
• Status: Active Grant

• Current Assignee: Guangdong OPPO Mobile Telecommunications Corporation Limited
• Original Assignee: Guangdong OPPO Mobile Telecommunications Corporation Limited
• Inventors: Yang, Le, Zhang, Haiping
• Primary Examiner(s): Merlin, Jessica M
• Application Number:
  US15/854,956
• Publication Number:
  US 20180314096A1
• Time in Patent Office: 734 Days
• CPC Class Codes: G02F 1/13338 Input devices, e.g. touch panels
• CPC Class Codes: G02F 1/133512 Light shielding layers, e.g. black matrix G02F1/136209 takes precedence
• CPC Class Codes: G06F 1/1637 Details related to the display arrangement, including those related to the mounting of the display in the housing
• CPC Class Codes: G06F 1/1684 Constructional details or arrangements related to integrated I/O peripherals not covered by groups G06F1/1635 - G06F1/1675
• CPC Class Codes: G06F 21/32 using biometric data, e.g. fingerprints, iris scans or voiceprints
• CPC Class Codes: G06F 3/041 Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
• CPC Class Codes: G06F 3/0412 Digitisers structurally integrated in a display
• CPC Class Codes: G06V 40/1318 using electro-optical elements or layers, e.g. electroluminescent sensing
• CPC Class Codes: H10K 59/40 OLEDs integrated with touch screens

Abstract

The present disclosure provides a display screen, a display device, and a mobile terminal. The display screen includes a light-shielding panel and a display panel. The light-shielding panel is provided with a hollow-out groove, and the hollow-out groove is configured so that a fingerprint module is fastened in the hollow-out groove. The display panel is superposed on a side of the light-shielding panel towards a user. A side of the display panel towards the light-shielding panel is provided with an ink layer. An orthographic projection area of the ink layer on the light-shielding panel coincides with the hollow-out groove. Chromaticity of the ink layer is consistent with chromaticity of a side of the light-shielding panel towards the display panel.

Claims

1. A display screen, comprising a light-shielding panel and a display panel, the light-shielding panel being provided with a hollow-out groove, the hollow-out groove being configured to fasten an optical fingerprint module, the display panel being configured to be superposed on a side of the light-shielding panel towards a user, a side of the display panel towards the light-shielding panel being provided with an ink layer, an orthographic projection area of the ink layer on the light-shielding panel coinciding with the hollow-out groove, and chromaticity of the ink layer being consistent with chromaticity of a side of the light-shielding panel towards the display panel;

the ink layer is provided with a plurality of tiny holes, and the plurality of tiny holes are configured so that inductive light of the optical fingerprint module is transmitted;

the plurality of tiny holes comprises a first tiny hole and a second tiny hole, the first tiny hole is configured so that the inductive light emitted by the optical fingerprint module is transmitted outside, and the second tiny hole is configured so that the inductive light reflected from the outside is transmitted towards the optical fingerprint module.

2. The display screen according to claim 1, wherein the light-shielding panel comprises a first surface towards the display panel and a second surface opposite the first surface, the hollow-out groove runs through from the first surface to the second surface.

3. The display screen according to claim 1, wherein the light-shielding panel is provided with a plurality of hollow-out grooves, and a plurality of optical fingerprint modules is fastened to the plurality of hollow-out grooves respectively.

4. The display screen according to claim 2, wherein the display panel comprises an upper surface and a lower surface opposite the upper surface, and the lower surface is attached to the first surface of the light-shielding panel.

5. The display screen according to claim 1, wherein the plurality of tiny holes are arranged in an array.

6. The display screen according to claim 1, wherein the light-shielding panel is made from foam.

7. The display screen according to claim 1, wherein the display panel comprises a substrate and a display layer, the substrate is superposed on the light-shielding panel, and the display layer is superposed on a side of the substrate away from the light-shielding panel.

8. The display screen according to claim 7, wherein the display panel is a liquid crystal display panel, the substrate is a thin film transistor substrate, and the display layer is a liquid crystal layer.

9. The display screen according to claim 8, wherein the display panel further comprises a colorful substrate attached to a side of the display layer away from the substrate, an upper polarizer attached to a side of the colorful substrate away from the display layer, a lower polarizer attached to a side of the substrate away from the display layer, and a backlight source attached to a side of the lower polarizer away from the substrate.

10. The display screen according to claim 7, wherein the display panel is an organic light-emitting diode display panel, the substrate is a glass substrate, and the display layer is an organic luminescent layer.

11. The display screen according to claim 10, wherein the display panel further comprises an anode layer attached between the display layer and the substrate, a cathode layer attached to a side of the display layer away from the anode layer, and an upper polarizer attached to a side of the cathode layer away from the display layer.

12. The display screen according to claim 1, wherein the display screen further comprises a light-transparent cover plate, the light-transparent cover plate is superposed on a side of the display panel away from the light-shielding panel, and the light-transparent cover plate covers the display panel.

13. The display screen according to claim 12, wherein the light-transparent cover plate is a glass plate, and the light-transparent cover plate and the display panel are bonded together through an optical adhesive.

14. A display device, comprising a display screen and an optical fingerprint module, the display screen comprising a light-shielding panel and a display panel, the light-shielding panel being provided with a hollow-out groove, the hollow-out groove being configured to fasten the optical fingerprint module, the display panel being configured to be superposed on a side of the light-shielding panel towards a user, a side of the display panel towards the light-shielding panel being provided with an ink layer, an orthographic projection area of the ink layer on the light-shielding panel coinciding with the hollow-out groove, and chromaticity of the ink layer being consistent with chromaticity of a side of the light-shielding panel towards the display panel, the optical fingerprint module being fastened to the hollow-out groove;

the ink layer is provided with a plurality of tiny holes, and the plurality of tiny holes are configured so that inductive light of the optical fingerprint module is transmitted;

the plurality of tiny holes comprises a first tiny hole and a second tiny hole, the first tiny hole is configured so that the inductive light emitted by the optical fingerprint module is transmitted outside, and the second tiny hole is configured so that the inductive light reflected from the outside is transmitted towards the optical fingerprint module.

15. The display device according to claim 14, wherein the optical fingerprint module comprises a base, a light emitting source, and a light receiving source, the light emitting source and the light receiving source are both fastened to the base, the light emitting source is configured to emit inductive light to the outside through the display panel, and the light receiving source is configured to receive the inductive light reflected from the outside through the display panel.

16. A mobile terminal, comprising a display device, the display device comprising a display screen and an optical fingerprint module, the display screen comprising a light-shielding panel and a display panel, the light-shielding panel being provided with a hollow-out groove, the hollow-out groove being configured to fasten the optical fingerprint module, the display panel being configured to be superposed on a side of the light-shielding panel towards a user, a side of the display panel towards the light-shielding panel being provided with an ink layer, an orthographic projection area of the ink layer on the light-shielding panel coinciding with the hollow-out groove, and chromaticity of the ink layer being consistent with chromaticity of a side of the light-shielding panel towards the display panel, the optical fingerprint module being fastened to the hollow-out groove;

the ink layer is provided with a plurality of tiny holes, and the plurality of tiny holes are configured so that inductive light of the optical fingerprint module can be transmitted;

the plurality of tiny holes comprises a first tiny hole and a second tiny hole, the first tiny hole is configured so that the inductive light emitted by the optical fingerprint module is transmitted outside, and the second tiny hole is configured so that the inductive light reflected from the outside is transmitted towards the optical fingerprint module.

17. The mobile terminal according to claim 16, wherein the mobile terminal is selected from a group consisting of a mobile phone, a tablet computer, and a notebook computer.