ELECTRONIC DEVICE AND TACTILE TOUCH SCREEN DISPLAY

• US 20090244013A1
• Filed: 03/27/2008
• Published: 10/01/2009
• Est. Priority Date: 03/27/2008
• Status: Abandoned Application

• Current Assignee: Malikie Innovations Limited (Key Patent Innovations Limited)
• Original Assignee: Research In Motion Limited (Blackberry Limited)
• Inventors: ELDERSHAW, Michael Keith
• Application Number:
  US12/056,848
• Publication Number:
  US 20090244013A1
• Time in Patent Office: Days
• US Class Current: 345/173
• 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 1/1643 the display being associated to a digitizer, e.g. laptops that can be used as penpads details related to the relative motion of the display enclosure with respect to the body enclosure, e.g. to move between laptop and tablet PC configuration G06F1/1615
• CPC Class Codes: G06F 3/041 Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means

Abstract

An electronic device includes a housing with a back and a frame. A support tray is spaced from the back and includes a tray base, and a lip connected to and spaced from the tray base. The support tray supports a display device and touch-sensitive overlay disposed on the display device. A plurality of pads on an exterior of the support tray include pads between the tray base and the back and pads between the lip and the frame. Operational components are housed in the housing and include a touch screen controller connected to the touch-sensitive overlay and a processor connected to the display device and the touch-screen controller.

Claims

1. A touch screen display assembly for use in an electronic device comprising:

a display device;

a touch-sensitive overlay disposed on the display device;

a support tray comprising a tray base and a lip connected to and spaced from the tray base for supporting the display device and touch-sensitive overlay; and

a plurality of compliant pads on an exterior of the support tray including pads on the tray base and pads on the lip.

2. The touch screen display assembly according to claim 1, comprising a controller connected to the touch-sensitive overlay for receiving input from the touch-sensitive overlay and for connecting to a processor.

3. The touch screen display assembly according to claim 1, wherein ones of the pads on the tray base are connected to respective ones of the pads on the lip.

4. The touch screen display assembly according to claim 1, wherein the plurality of pads comprise a respective pad on the tray base at each corner of the support tray.

5. The touch screen display assembly according to claim 1, wherein the plurality of pads comprise a respective pad on the lip at each corner of the support tray.

6. The touch screen display assembly according to claim 1, wherein the plurality of pads comprises at least one pad extending proximal a center of the tray base.

7. The touch screen display assembly according to claim 1, wherein the plurality of pads comprise respective pads extending inwardly toward a center of the tray base from opposing sides thereof.

8. The touch screen display assembly according to claim 1, wherein the plurality of pads comprise respective pads extending on the lip, at opposing sides of the support tray.

9. The touch screen display assembly according to claim 1 wherein the pads are overmolded on the support tray in a mechanical interlock.

10. The touch screen display assembly according to claim 1 wherein the pads comprise a gel or foam material

11. The touch screen display assembly according to claim 1 wherein the pads comprises a thermoplastic elastomer.

12. The touch screen display assembly according to claim 11, wherein the pads have a shore hardness of about 30 to about 80 on the shore 00 scale.

13. An electronic device comprising:

a housing comprising a back and a frame;

a support tray spaced from the back and comprising a tray base, and a lip connected to and spaced from the tray base;

a display device and touch-sensitive overlay disposed on the display device, the display device and touch-sensitive overlay supported by the support tray and disposed on the tray base;

a plurality of compliant pads on an exterior of the support tray including pads between the tray base and the back and pads between the lip and the frame; and

operational components housed in the housing and comprising a touch screen controller connected to the touch-sensitive overlay and a processor connected to the display device and the touch-screen controller.

14. The electronic device according to claim 13, comprising a base disposed between the back and the frame and wherein the pads between the tray base and the back comprise pads between the tray base and the base.

15. The electronic device according to claim 14, wherein the pads between the tray base and the base comprise at least one pivot pad for the support tray to pivot on.

16. The electronic device according to claim 13, wherein ones of the pads between the tray base and the back are connected to respective ones of the pads between the lip and the frame.

17. The electronic device according to claim 13, wherein the plurality of pads comprise a respective pad between the tray base and the back at each corner of the support tray.

18. The electronic device according to claim 13, wherein the plurality of pads comprise a respective pad between the lip and the frame at each corner of the support tray.

19. The electronic device according to claim 13, wherein the plurality of pads comprise at least one pivot pad extending proximal a center of the tray base for the support tray to pivot on.

20. The electronic device according to claim 13, wherein the plurality of pads comprise respective pads extending inwardly toward a center of the tray base from opposing sides thereof.

21. The electronic device according to claim 13, wherein the plurality of pads comprise respective pads extending on the lip, at opposing sides of the support tray.

22. The electronic device according to claim 13 wherein the pads are overmolded on the support tray to provide a mechanical interlock.

23. The electronic device according to claim 13 wherein the pads comprise gel or foam pads.

24. The electronic device according to claim 13, wherein the pads comprise a thermoplastic elastomer.

25. The electronic device according to claim 24, wherein the pads have a shore hardness of about 30 to about 80 on the shore 00 scale.

26. A method of manufacturing a touch screen display assembly for use in an electronic device, the method comprising:

placing a support tray in a mold;

closing the mold;

injecting gel or foam into the mold to form a plurality of pads on the support tray;

allowing the pads to cool; and

removing the support tray including the pads from the mold.

27. The method according to claim 26, wherein injecting gel comprises injecting gel or foam at least at each corner of the support tray.

28. The method according to claim 27, wherein injecting gel or foam comprises injecting gel or foam proximal center locations along long sides of the support tray.

29. The method according to claim 26, wherein injecting gel or foam comprises injection a thermoplastic elastomer into the mold.

30. The method according to claim 29, wherein injecting a thermoplastic elastomer comprises injecting a thermoplastic elastomer having a shore hardness of about 30 to about 80 on the shore 00 scale.