Non-Optically Bonded Display Device

• US 20130169900A1
• Filed: 01/02/2012
• Published: 07/04/2013
• Est. Priority Date: 01/02/2012
• Status: Abandoned Application

• Current Assignee: Microsoft Technology Licensing LLC (Microsoft Corporation)
• Original Assignee: Microsoft Corporation
• Inventors: Dighde, Rajesh Manohar
• Application Number:
  US13/342,180
• Publication Number:
  US 20130169900A1
• Time in Patent Office: Days
• US Class Current: 349/43
• CPC Class Codes: G02B 1/11 Anti-reflection coatings
• CPC Class Codes: G02F 1/133308 Support structures for LCD panels, e.g. frames or bezels
• CPC Class Codes: G02F 1/133331 Cover glasses
• CPC Class Codes: G02F 1/13338 Input devices, e.g. touch panels

Abstract

Various embodiments provide a display that utilizes a film having a plurality of compliant microdots to non-optically bond a layer of chemically strengthened protective glass to the display. The film, microdots, and chemically strengthened protective glass provide an assembly provides a non-bonded ruggedized, interactive display that is highly functional, safe, and easy to construct.

Claims

1. An assembly comprising:

a compliant optically clear film; and

a plurality of microdots formed on film;

the assembly being dimensioned to be utilized in a display between a layer of protective glass and a display stack up in which the film and plurality of microdots are configured to be non-optically bonded to the stack up.

2. The assembly of claim 1, wherein the film comprises a clear, antireflective film.

3. The assembly of claim 1, wherein the film comprises a transparent thermoplastic material.

4. The assembly of claim 1, wherein the film comprises poly methyl methacrylate (PMMA).

5. The assembly of claim 1, wherein individual microdots of the plurality of microdots have a generally semi-spherical shape.

6. The assembly of claim 1, wherein individual microdots of the plurality of microdots have a height from between about 0.1 mm to 0.4 mm.

7. The assembly of claim 1, wherein individual microdots of the plurality of microdots are arranged to have a uniform spacing therebetween.

8. An assembly comprising:

a film;

a plurality of microdots formed on film; and

a layer of protective glass affixed to the film, the assembly being dimensioned to be utilized in a display and non-optically bonded to a display stack up of the display.

9. The assembly of claim 8, wherein individual microdots of the plurality of microdots have a shape other than semi-spherical.

10. The assembly of claim 8, wherein the layer of protective glass has a thickness from between about 0.7 mm to 0.9 mm.

11. The assembly of claim 10, wherein the film comprises a clear, antireflective film.

12. The assembly of claim 10, wherein the film comprises a transparent thermoplastic material.

13. The assembly of claim 10, wherein the film comprises poly methyl methacrylate (PMMA).

14. The assembly of claim 10, wherein individual microdots of the plurality of microdots have a generally semi-spherical shape.

15. The assembly of claim 10, wherein individual microdots of the plurality of microdots have a height from between about 0.1 mm to 0.4 mm.

16. The assembly of claim 8, wherein the microdots have a reflective index that is the same as a reflective index of the layer of protective glass.

17. A display comprising:

a housing;

an assembly mounted within the housing and comprising;

a film;

a plurality of microdots formed on the film; and

a layer of protective glass affixed to the film;

a display stack up comprising;

one or more panels, the assembly being non-optically bonded to the display stack up;

a light guide plate adjacent the one or more panels; and

a light source adjacent the light guide plate.

18. The display of claim 17, wherein the one or more panels comprise:

an LCD panel comprising at least a liquid crystal display color filter (LCD CF); and

a liquid crystal display thin-film transistor array (LCD TFT).

19. The display of claim 17, wherein the one or more panels comprise:

an LCD panel comprising at least a liquid crystal display color filter (LCD CF); and

a liquid crystal display thin-film transistor array (LCD TFT),

wherein the layer of protective glass has a thickness from between about 0.7 mm to 0.9 mm.

20. The display of claim 17, wherein the one or more panels comprise:

an LCD panel comprising at least a liquid crystal display color filter (LCD CF); and

a liquid crystal display thin-film transistor array (LCD TFT),

wherein the film comprises poly methyl methacrylate (PMMA) and wherein individual microdots of the plurality of microdots have a height from between about 0.1 mm to 0.4 mm.