Handheld electronic device and method for assembling display panel thereof

• US 9,288,294 B2
• Filed: 10/19/2012
• Issued: 03/15/2016
• Est. Priority Date: 10/19/2012
• Status: Active Grant

• Current Assignee: HTC Corporation
• Original Assignee: HTC Corporation
• Inventors: Lin, Ming-Tien, Hu, Chih-Jen
• Primary Examiner(s): Wilson, Adrian S
• Application Number:
  US13/655,455
• Publication Number:
  US 20140111910A1
• Time in Patent Office: 1,243 Days
• Field of Search: 455/575.8, 361/679.3
• US Class Current: 1/1
• CPC Class Codes: G06F 1/1626 with a single-body enclosure integrating a flat display, e.g. Personal Digital Assistants [PDAs]
• 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 1/1652 the display being flexible, e.g. mimicking a sheet of paper, or rollable
• CPC Class Codes: H04M 1/0266 for a display module assembly
• CPC Class Codes: H04M 1/0269 mounted in a fixed curved configuration, e.g. display curved around the edges of the telephone housing
• CPC Class Codes: H05K 13/00 Apparatus or processes specially adapted for manufacturing or adjusting assemblages of electric components
• CPC Class Codes: H05K 7/00 Constructional details common to different types of electric apparatus casings, cabinets, drawers H05K5/00
• CPC Class Codes: Y10T 29/49 Method of mechanical manufacture
• CPC Class Codes: Y10T 29/4998 Combined manufacture including applying or shaping of fluent material

Abstract

A handheld electronic device includes a body, a transparent cover, and a display panel. The body has a display opening. The transparent cover is disposed on the display opening. The transparent cover includes a first surface facing outside of the body and a second surface opposite to the first surface, and the second surface includes a curved surface. A curvature radius of the first surface is different from a curvature radius of the second surface. The display panel bends along the second surface and is attached to the second surface. Moreover, a method for assembling the display panel of the handheld electronic device is provided.

Claims

1. A handheld electronic device, comprising:

a body comprising a display opening;

a transparent cover disposed on the display opening and comprising a first surface facing outside of the body and a second surface opposite to the first surface, and the second surface comprising a curved surface, wherein a curvature radius of the first surface is different from a curvature radius of the second surface;

a reinforced layer in direct contact with a substantial surface area of the first surface of the transparent cover; and

a display panel bent along the second surface and attached to the second surface,

wherein a material of the reinforced layer comprises glass, and a material of the transparent cover comprises plastic.

2. The handheld electronic device according to claim 1, wherein the second surface is an arc curved surface, and a curvature radius of the arc curved surface is in a range of 200-600 mm.

3. The handheld electronic device according to claim 1, further comprising an adhesive layer disposed between the display panel and the transparent cover.

4. The handheld electronic device according to claim 3, wherein the adhesive layer comprises an optical adhesive.

5. The handheld electronic device according to claim 1, wherein the first surface comprises a curved surface, and a curvature radius of a central area of the first surface is greater than a curvature radius of a peripheral area of the first surface.

6. The handheld electronic device according to claim 1, further comprising a touch panel disposed between the display panel and the transparent cover.

7. The handheld electronic device according to claim 1, wherein the display panel comprises a non-flexible display panel and a flexible display panel.

8. An assembling method for assembling a display panel of a handheld electronic device, comprising a body having a display opening, the method comprising:

forming a transparent cover to be disposed on the display opening, the transparent cover comprising a first surface facing outside of the body and a second surface opposite to the first surface, and the second surface comprising a curved surface, wherein a curvature radius of the first surface is different from a curvature radius of the second surface, the method for forming the transparent cover comprising;

providing a reinforced plate; and

disposing the reinforced plate in a mold and pouring a material into the mold to form the transparent cover by injection molding, wherein the reinforced plate covers the first surface of the transparent cover;

attaching the display panel to the second surface; and

assembling the transparent cover as well as the display panel to the body.

9. The assembling method according to claim 8, wherein the method for forming the transparent cover further comprises processing the reinforced plate into a bent plate, and a curvature radius of a central area of the reinforced plate is greater than a curvature radius of a peripheral area of the reinforced plate for molding the first surface of the transparent cover.

10. The assembling method according to claim 8, wherein the second surface is an arc curved surface, and a curvature radius of the arc curved surface is in a range of 200-600 mm.

11. The assembling method according to claim 8, wherein the display panel is attached to the second surface via an adhesive layer.

12. The assembling method according to claim 11, wherein the adhesive layer comprises an optical adhesive.

13. The assembling method according to claim 8, further comprising disposing a touch panel between the display panel and the transparent cover.