INPUT DEVICE USING PROJECTOR

• US 20110304580A1
• Filed: 11/29/2010
• Published: 12/15/2011
• Est. Priority Date: 06/11/2010
• Status: Active Grant

• Current Assignee: FIH (Hong Kong) Limited (Hon Hai Precision Industry Co., Ltd.)
• Original Assignee: FIH (Hong Kong) Limited (Hon Hai Precision Industry Co., Ltd.)
• Inventors: WU, KUN-TSAN, TIEN, LI-WEN
• Granted Patent: US 8,564,566 B2
• Time in Patent Office: Days
• US Class Current: 345/174
• CPC Class Codes: G06F 3/021 Arrangements integrating additional peripherals in a keyboard, e.g. card or barcode reader, optical scanner
• CPC Class Codes: G06F 3/044 by capacitive means
• CPC Class Codes: G06F 3/04886 by partitioning the display area of the touch-screen or the surface of the digitising tablet into independently controllable areas, e.g. virtual keyboards or menus

Abstract

An input device includes a base, a touchscreen, and a projector. The base defines a receiving slot. The touchscreen is secured to the base. The projector can be pivotally received in the receiving slot. The projector includes a holder and a lens. One end of the holder is pivotally secured to the base, and the lens is secured to the other end of the holder. The lens can project a keyboard image on the touchscreen to identify input locations.

Claims

1. An input device comprising:

a base defining a receiving slot;

a touchscreen secured to the base; and

a projector including a holder supporting a lens, the holder pivotally received in the receiving slot of the base, and the lens projecting a keyboard image on the touchscreen to identify input locations.

2. The input device as claimed of claim 1, further comprising a control module, the control module for selecting one of different keyboard images to be projected on the touchscreen.

3. The input device as claimed of claim 1, wherein the touchscreen is a transparent capacitive touchscreen.

4. The input device as claimed of claim 3, wherein a transparent protective layer, a first conducting layer, a transparent substrate, and a second conducting layer stacked on each in series.

5. The input device as claimed of claim 4, wherein the first and second conducting layers are either indium tin oxide, aluminum-doped zinc oxide, or cadmium oxide.

6. The input device as claimed of claim 1, wherein a leg portion projects from the base, the leg portion angles with the base.

7. The input device as claimed of claim 1, wherein the holder including a fixing portion and a connecting portion, the fixing portion is pivotally secured to the fixing portion, the lens is supported on the fixing portion, and the connecting portion is pivotally secured to the base.

8. The input device as claimed of claim 1, wherein a sensor is imbedded in the holder, the sensor detects an angle between the holder and the base, one of different keyboard images are projected on the touchscreen according the angle.

9. The input device as claimed of claim 1, wherein another projector is secured to the holder, the projectors are oriented at opposite sides of the holders.

10. An input device comprising:

a base;

a touchscreen secured to the base;

a holder, one end of the holder secured to the base; and

a lens, the lens secured to the other end of the holder, and the lens projecting a keyboard image on the touchscreen to identify input locations.

11. The input device as claimed of claim 10, wherein further including a control module, the control module for selecting one of different keyboard images to be projected on the touchscreen.

12. The input device as claimed of claim 10, wherein the touchscreen is a transparent capacitive touchscreen.

13. The input device as claimed of claim 12, wherein a transparent protective layer, a first conducting layer, a transparent main body, and a second conducting layer stacked on each in series.

14. The input device as claimed of claim 13, wherein the first and second conducting layers are either indium tin oxide, aluminum-doped zinc oxide, or cadmium oxide.

15. The input device as claimed of claim 10, wherein a leg portion projects from the base, the leg portion angles with the base.

16. The input device as claimed of claim 10, wherein the holder including a fixing portion and a connecting portion, the fixing portion is pivotally secured to the fixing portion, the lens is imbedded in the fixing portion, and the connecting portion is pivotally secured to the base.

17. The input device as claimed of claim 10, wherein a sensor is imbedded in the holder, the sensor detects an angle between the holder and the base, different keyboard images are projected on the touchscreen according the angle.

18. The input device as claimed of claim 10, wherein another projector is secured to the holder, the projectors are oriented at opposite sides of the holders.