Bezelless display system having a display assembly with an overlay including a transparent section optically bonded to a display region with an optical layer that includes a pre-cured adhesive preform

• US 7,924,362 B2
• Filed: 04/18/2008
• Issued: 04/12/2011
• Est. Priority Date: 04/20/2007
• Status: Active Grant

• Current Assignee: VIA Optronics GmbH
• Original Assignee: VIA Optronics, LLC
• Inventors: Slobodin, David Elliott
• Primary Examiner(s): HEYMAN, JOHN S
• Application Number:
  US12/106,195
• Publication Number:
  US 20080261057A1
• Time in Patent Office: 1,089 Days
• Field of Search: 349 58- 60, 349/12
• US Class Current: 349/58
• CPC Class Codes: B32B 2457/202 LCD, i.e. liquid crystal displays
• CPC Class Codes: G02F 1/133308 Support structures for LCD panels, e.g. frames or bezels
• CPC Class Codes: G02F 1/133311 Environmental protection, e.g. against dust or humidity
• CPC Class Codes: G02F 1/13338 Input devices, e.g. touch panels
• CPC Class Codes: G02F 1/133502 Antiglare, refractive index matching layers
• CPC Class Codes: G02F 2201/503 Arrangements improving the resistance to shock
• CPC Class Codes: G02F 2202/28 Adhesive materials or arrangements
• CPC Class Codes: Y10T 156/10 Methods of surface bonding and/or assembly therefor
• CPC Class Codes: Y10T 428/31663 As siloxane, silicone or silane

Abstract

A display system is provided including a display assembly with a display region of a first size, an overlay having a first substantially transparent section corresponding to the size of the display region of the display assembly and a second customized section extending beyond the first substantially transparent section, and an adhesive optically bonding the display region of the display assembly to the overlay. In some embodiments, the display assembly is one of a liquid crystal display, an organic light emitting diode display, and an electronic paper display. In some embodiments, the second customized section of the overlay may include an accessory, such as a sensor accessory, an actuator, or a coating.

Claims

1. A display system comprising:

a first display assembly with a display region of a first size;

a continuous overlay having a first substantially transparent section corresponding to the size of the display region of the first display assembly and a second customized section extending beyond the first substantially transparent section; and

an optical layer disposed between the first display assembly and the first substantially transparent section of the overlay, the first display assembly optically bonded to the first substantially transparent section of the overlay by the optical layer;

wherein the optical layer includes a pre-cured adhesive preform.

2. The display system of claim 1, wherein the first display assembly is one of a liquid crystal display, an organic light emitting diode display, and an electronic paper display.

3. The display system of claim 1, wherein the optical layer comprises an adhesive.

4. The display system of claim 1, wherein the display system further comprises a second display assembly optically bonded to the overlay by a second optical layer.

5. The display system of claim 1, wherein the second customized section of the overlay includes an actuator or a sensor accessory.

6. The display system of claim 5, wherein the actuator is one of an audio transducer, a haptic vibrator, and a light source.

7. The display system of claim 1, wherein the second customized section of the overlay includes at least one non-transparent region.

8. The display system of claim 7, wherein the second customized section of the overlay includes at least one additional layer.

9. The display system of claim 8, wherein the at least one additional layer is an opaque coating.

10. The display system of claim 8, wherein the at least one additional layer is an anti-reflective coating.

11. The display system of claim 3, wherein the adhesive includes a two-part cured silicone adhesive.

12. The display system of claim 3, wherein the adhesive has a refractive index substantially similar to one of the first substantially transparent section of the overlay and an exterior surface of the display region of the first display assembly.

13. The display system of claim 1, wherein the second customized section extends beyond the first substantially transparent section along at least two sides.

14. The display system of claim 1, further comprising a second substantially transparent section spaced apart from the first substantially transparent section.

15. The display system of claim 1, wherein the first display assembly is optically bonded to the first substantially transparent section of the overlay without a mechanical bezel overlaying the overlay.

16. The display system of claim 5, wherein the sensor accessory is a touch switch.

17. A method for construction of a display system comprising:

applying an optical adhesive to a substantially transparent section of an overlay;

customizing a second section of the overlay;

aligning the transparent section of the overlay with a viewable portion of a display assembly;

bonding the overlay and the display assembly so that the optical adhesive is disposed between the display assembly and the viewable portion of the display; and

pre-curing the optical adhesive and the overlay prior to aligning the transparent section of the overlay with the viewable portion of the display assembly.

18. The method of claim 17, wherein customizing the second section of the overlay includes adhering a sensor to the second section of the overlay.

19. The method of claim 18, wherein customizing the second section of the overlay includes adhering a touch switch to the second section of the overlay.

20. The method of claim 17, wherein customizing the second section of the overlay includes applying a coating to at least a portion of the second section.

21. The method of claim 17, wherein aligning the transparent section of the overlay with the viewable portion of a display assembly includes positioning the display assembly such that the second section of the overlay extends beyond at least one side of the transparent section of the overlay.

22. A display system comprising:

a first display assembly with a display region of a first size;

a continuous overlay having a first substantially transparent section corresponding to the size of the display region of the first display assembly and a second customized section extending beyond the first substantially transparent section; and

an optical layer disposed between the first display assembly and the first substantially transparent section of the overlay, the first display assembly optically bonded to the first substantially transparent section of the overlay by the optical layer;

wherein the optical layer comprises an adhesive; and

wherein the adhesive includes a two-part cured silicone adhesive.