Feedback method of projection keyboard and projection keyboard

A projection keyboard and key technology, applied in the feedback method of projection keyboard and the field of projection keyboard, can solve the problems of reducing input efficiency, lack of touch feeling of keys, affecting user experience, etc., and achieve the effect of improving input efficiency

Inactive Publication Date: 2019-02-22
DONGGUAN HUABEL ELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the other hand, although the projection keyboard is easier to carry than the physical keyboard, the projection keyboard is prone to misidentification and other problems. In addition, the traditional projection keyboard generally does not have the tactile feel of the keys, so users must know their own keys by checking the display content on the screen. Whether the operation has been effectively identified
[0003] In this way, the user's line of sight will constantly switch between the keyboard and the screen, which not only affects the user experience, but also does not reduce the input efficiency.

Method used

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  • Feedback method of projection keyboard and projection keyboard
  • Feedback method of projection keyboard and projection keyboard
  • Feedback method of projection keyboard and projection keyboard

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] like figure 1 As shown, this embodiment provides a feedback method for a projected keyboard, including the following steps S10-S50.

[0056] S10: Use the projector 1 to project each laser key of the projection keyboard.

[0057] Specifically, the projector 1 can project light of different colors. Specifically, the projector 1 can project a projection keyboard with a single color such as red, white, blue or green, or project a keyboard with two colors as required. One or more colors of projection keyboards, for example, the laser keys of F1-F12 of the projection keyboard are all red, while the color of the laser keys of 26 English letters is blue.

[0058] S20: Projecting a sensing beam above each laser key through the linear sensing laser head 2, and the sensing beam is used to form a light spot on an object that touches the laser key.

[0059] Specifically, the light beam emitted by the inline linear sensor laser head 2 can form a light plane above the laser key. Li...

Embodiment 2

[0076] The difference between this embodiment and the first implementation lies in step S40. In this embodiment, step S40 includes:

[0077] S401: before the laser keys of the projection keyboard are struck, make all the laser keys present a raised visual effect;

[0078] S402: When the laser key of the projection keyboard is struck, the struck laser key presents a sinking visual effect;

[0079] S403: After the laser key of the projection keyboard is struck, restore the raised visual effect to the struck laser key.

[0080] For example, for example:

[0081] ①At the beginning, the projector 1 projected a keyboard, and the laser keys on the keyboard were all raised;

[0082] ②When the user's finger touches the laser button "C", the laser button "C" becomes sinking, as if it was pressed by the finger;

[0083] ③ When the user's finger leaves the laser key "C", the laser key "C" returns to the raised state, as if it were bounced up again.

[0084] Specifically, this embodime...

Embodiment 3

[0086] like Figure 2 ~ Figure 3 As shown, this embodiment provides a projection keyboard for implementing the method of Embodiment 1, including a projector 1 , a linear induction laser head 2 , a camera 3 , a visual effect control module 4 and a signal transmission unit 5 .

[0087] The projector 1 is connected to the visual effect control module 4 for projecting each laser key of the projection keyboard according to the instructions of the visual effect control module 4 .

[0088] The in-line induction laser head 2 is located below the projector 1; the in-line induction laser head 2 is used to project an induction beam above each laser key that can form a spot on the object that touches the laser key.

[0089] The camera 3 is located between the projector 1 and the in-line induction laser head 2; the camera 3 is connected to the visual effect control module 4 to track the light spot and send the information of the pressed laser button to the visual effect control module 4. ...

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Abstract

The invention relates to the technical field of an input device, in particular to a feedback method of a projection keyboard and a projection keyboard. When a laser key of the projection keyboard is touched, the visual effect of the touched laser key is changed. The invention provides a feedback method of a projection keyboard and a projection keyboard, the user can directly stare at the visual effect change of the keyboard to know whether his input is effectively responded to and recognized, and the switching back and forth between the screen and the keyboard is not needed, which greatly improves the input efficiency.

Description

technical field [0001] The invention relates to the technical field of input devices, in particular to a feedback method for a projection keyboard and the projection keyboard. Background technique [0002] Due to the advantages of small size and convenient portability, the projection keyboard has received extensive attention. On the other hand, although the projection keyboard is easier to carry than the physical keyboard, the projection keyboard is prone to misidentification and other problems. In addition, the traditional projection keyboard generally does not have the tactile feel of the keys, so users must know their own keys by checking the display content on the screen. Whether the operation is validly identified. [0003] As a result, the user's line of sight will constantly switch between the keyboard and the screen, which not only affects the user experience, but also does not reduce the input efficiency. Contents of the invention [0004] An object of the prese...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/042
CPCG06F3/0426
Inventor 陈磊
Owner DONGGUAN HUABEL ELECTRONICS TECH
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