CN101876848A

CN101876848A - Optical touch device and keyboard thereof

Info

Publication number: CN101876848A
Application number: CN200910132204XA
Authority: CN
Inventors: 林键达; 蔡文基; 张荣文; 梁次震
Original assignee: Quanta Computer Inc
Current assignee: Quanta Computer Inc
Priority date: 2009-04-28
Filing date: 2009-04-28
Publication date: 2010-11-03

Abstract

The invention discloses an optical touch device and a keyboard thereof. The optical touch device comprises a body, the keyboard and a light emission element, wherein the keyboard is placed on the body and provided with a first end part and a second end part and comprises a support frame, a keycap and a stop element, wherein the support frame has light transmission, the keycap is connected with the support frame in a movable way, and the stop element is connected with the keycap, does not have the light transmission and synchronously moves with the keycap; the light emission element supplies a light ray for the keyboard, the light ray can penetrate through the first end part to reach the second end part, and when the keycap is pressed, the stop element obstructs the light ray so that the light ray can not reach the second end part.

Description

Optical touch control apparatus and keyboard thereof

Technical field

The present invention relates to a kind of keyboard, particularly relate to a kind of keyboard that can be applicable in the optical touch control apparatus.

Background technology

Keyboard is the input tool in the computer system, and general keyboard is made up of multiple part, and for example: plastic press key, touch switch and circuit board or the like, complex structure and cost costliness can't reduce production costs.

A kind of dummy keyboard is also arranged on the market, the user can directly utilize the direct touch-control display panel of finger to operate on touch control display panel, yet, virtual keyboard can't provide the sense of touch of user's physical keyboard, and can't typewrite fast, and, dummy keyboard does not provide anchor point usually, not only strike wrong keyboard easily, the user must locate by the help of sight line, causes the fatigue of eyes easily.

Summary of the invention

The object of the present invention is to provide a kind of keyboard, to address the above problem.

The object of the present invention is achieved like this, and a kind of keyboard promptly is provided, and comprises a support frame, a keycap and a block element.Support frame has light transmission, and keycap is connected with support frame, and the block element is connected with keycap, and the block element does not have light transmission.Keycap can move between a primary importance and a second place, when keycap is positioned at primary importance, support frame block element and support frame are positioned at differentiated levels, and when keycap was positioned at the second place, block element and support frame were positioned at same level height.

The invention provides a kind of optical touch control apparatus and comprise a body, a keyboard and a photocell.Keyboard is positioned on the body, and has a first end and a second end, and comprises a support frame one keycap and a block element.Keycap can move between a primary importance and a second place, is connected with support frame, and the block element is connected with keycap, and with the same moved further of keycap, photocell provides a light to keyboard.When keycap was positioned at this primary importance, the penetrable first end of this light arrived the second end; When keycap was positioned at the second place, the block element stopped light, made light can't arrive the second end.

For above-mentioned and other purpose of the present invention, feature and advantage can be become apparent, cited below particularly one concrete preferred embodiment, and cooperate appended accompanying drawing to elaborate.

Description of drawings

Fig. 1 shows the exploded view of optical touch control apparatus of the present invention;

Fig. 2 A shows the planimetric map of optical touch control apparatus of the present invention;

The right side view of optical touch control apparatus among Fig. 2 B displayed map 2A;

Among Fig. 3 A, Fig. 3 B displayed map 2A along the cut-open view of an A-A ' tangent line; And

One of keycap changes routine cut-open view among Fig. 4 A, Fig. 4 B displayed map 3A, Fig. 3 B.

The main element symbol description

100 optical touch control apparatus

200 optical touch panels

300 keyboards

310 support frames

311 support components

320 keycaps

330 block elements

330 ' block element

331 teats

332 top layers

400 optical lens modules

500 reflecting strips

600 dummy keyboards

E light

The S inside surface

The P1 first end

The P2 the second end

A-A ' tangent line

Embodiment

As shown in Figure 1, the invention provides an optical touch control apparatus 100, comprise that an optical touch panel 200, a keyboard 300, a reflecting strips 500 (or reflective optical system) and two optical lens modules 400 place two adjacent summits of optical touch panel 200 respectively, optical lens module 400 comprises a photocell and an optical inductor; Wherein optical touch control apparatus 100 is to utilize the photocell of optical lens module 400 to send light E, light E contact reflecting strips 500 reflection backs are responded to by optical inductor along original route, therefore, when the position on an object or finger touches optical touch panel 200 surfaces, optical inductor will detect the signal of light crested, then calculate for the touched position of optical touch panel 200 by arithmetic system.

Referring to Fig. 2 A, Fig. 2 B, keyboard 300 comprises a support frame 310, a plurality of keycap 320 and a plurality of block element 330, and wherein the mode that support frame 310, keycap 320 and block element 330 can be integrally formed is made by rubber.

Support frame 310 has light transmission, so that the light E that photocell is launched can penetrate keyboard 300 and must be responded to by optical inductor after reflecting strips 500 reflections, in addition, support frame 310 also comprises a plurality of support components 311 (having light transmission), a plurality of keycaps 320 are connected with support component 311, and, when keyboard 300 is positioned on the optical touch panel 200, support component 311 and optical touch panel 200 butts, support keycap 320 by support component 311, can between keycap 320 and optical touch panel 200, keep a distance.

It should be noted, in this embodiment, 311 one-tenth strips of a plurality of support components, and arrange in the mode that is parallel to each other, but the shape of support component 311 and arrangement mode are not limited thereto, as long as can support keycap 320.

Referring to Fig. 3 A, Fig. 3 B, keycap 320 can (be pushed the front position in a primary importance, as shown in Figure 3A) and a second place (push the back position, shown in Fig. 3 B) between move, each keycap 320 has an inside surface S, one block element 330 is set respectively in each keycap 320, and can with these keycap 320 same moved further, block element 330 comprises a teat 331 and a top layer 332, teat 331 can protrude on the inside surface S in integrally formed mode with keycap 320, and top layer 332 is formed on the teat 331, and possess light tight or extinction property with shield lights.In one embodiment, top layer 332 can be a grinding layer, reaches light tight character and integrally formed with keycap 320 in the mode of grinding inside surface S; Or on inside surface S, form a coating or a sputtered layer to reach light tight character, so make top layer 332 reach light tight character and but be not limited thereto, as long as top layer 332 is light tight.In one embodiment, block element 330 integral body (teat 331 and top layer 332) are made with light tight material, then are bonded in the inside surface S of keycap 320.In another embodiment, the teat 331 of block element 330 is integrally formed with keycap 320, and then the top layer 332 of block element 330 is bonded in the inside surface S of keycap 320 with light tight material making.

Referring to Fig. 4 A and Fig. 4 B, change in the example one, keycap 320 can (be pushed the front position in a primary importance, shown in Fig. 4 A) and a second place (position after pushing, shown in Fig. 4 B) between move, wherein block element 330 ' is a top layer, directly be formed on the inside surface S of keycap 320, and top layer 330 ' can be a grinding layer, integrally formed in the mode of grinding inside surface S with keycap 320, or on inside surface S, form a coating or a sputtered layer, but be not limited thereto, as long as top layer 330 ' is light tight.

Referring to Fig. 3 A and Fig. 4 A, when being positioned at primary importance, keycap 320 (pushes the front position), block element 330,330 ' and support frame 310 be positioned at differentiated levels, referring to Fig. 3 B and Fig. 4 B, when keycap 320 is pressed down and when moving to the second place by primary importance (pushing the position, back), block element 330,330 ' and support frame 310 be positioned at same level height.

Refer again to Fig. 2 A, Fig. 2 B, Fig. 3 A, Fig. 3 B and Fig. 4 A, Fig. 4 B, shown in Fig. 2 A, keyboard 300 is positioned on the optical touch panel 200, and have a first end P1 and a second end P2 opposite with first end P1, and optical lens module 400 is arranged at optical touch panel 200 adjacent two corners, and provides a light E whether the surface of the touching optical touch panel 200 of finger or object is arranged with detecting.Shown in Fig. 3 A and Fig. 4 A, when keycap 320 was positioned at primary importance, because support frame 310 and a plurality of support component 311 have light transmission, this light E can penetrate support component 311 smoothly and be passed through the second end P2 and arrived reflecting strips 500 by first end P1.Shown in Fig. 3 B and Fig. 4 B, when the user presses to the second place with keycap 320 by primary importance, make block element 330,330 ' and support frame 310 when being positioned at same level height, because block element 330,330 ' is lighttight design, can stop advancing of light E, make light E can't penetrate block element 330,330 ' and arrive the second end P2 and reflecting strips 500, just can calculate the position that is pressed down keycap 320 by the signal of light E crested this moment.

As mentioned above, before the user did not press down keycap 320, light E can penetrate keyboard 300 smoothly and arrive reflecting strips 500 and reflect also unscreened situation generation therebetween, therefore be able to be responded to, promptly do not have the situation of any touch point in optical touch panel as prior art by optical inductor; When the user presses down keycap 320, by block element 330,330 ' block, light E can't arrive reflecting strips 500 and the reflected light inductor, therefore optical inductor will induce a grazing point, and must carry out the calculating of touch point, promptly as the situation of prior art touch point in optical touch panel.

See also Fig. 1, in one embodiment, can show dummy keyboard 600 on the optical touch panel 200, when keyboard 300 is positioned on the optical touch panel 200, keyboard 300 corresponding dummy keyboards 600, that is corresponding dummy keyboard 600 one of them key of keycap 320 difference of keyboard 300 are therefore when the user presses down specific keycap, promptly touch in the dummy keyboard 600 key, and then produce corresponding function keycap that should be specific as the user; In an embodiment, there is no on the optical touch panel 200 and show dummy keyboard 600, as long as calculated in advance also stores each keycap 320 will touch data in the position of optical touch panel 200 (that is understand the grazing point position of generation) after pressing down, for example, when specific keycap presses down, because the position of the grazing point that produces was known when each keycap pressed down, therefore after the position calculation of a certain grazing point is come out, can instead push away this specific keycap and be in pressed status, thereby can produce the function that presses down this specific keycap correspondence.

Keyboard 300 of the present invention can be applicable in any optical touch control apparatus, when the user needs physical keyboard, can directly keyboard 300 be positioned over and operate on the optical touch panel, the entity sense of touch is provided and does not influence the running that optics touches device; In addition, because keyboard 300 be that flexible material is integrally formed, when taking in keyboard 300, also keyboard 300 arbitrarily can be folded, make things convenient for the user to carry, and keyboard 300 is simple in structure, lower cost for material can significantly reduce the manufacture craft cost.

Though disclosed the present invention in conjunction with above preferred embodiment; yet it is not in order to limit the present invention; anyly have the knack of this skill person; without departing from the spirit and scope of the present invention; still can do a little change and retouching, thus protection scope of the present invention should with enclose claim was defined is as the criterion.

Claims

1. keyboard comprises:

Support frame, wherein this support frame has light transmission;

Keycap is connected with this support frame; And

The block element is connected with this keycap, and this block element does not have light transmission;

Wherein this keycap can move between a primary importance and a second place, when this keycap is positioned at this primary importance, this block element and this support frame are positioned at differentiated levels, and when this keycap was positioned at this second place, this block element and this support frame were positioned at same level height.

2. keyboard as claimed in claim 1, wherein this support frame comprises a plurality of support components, and these many support components are parallel to each other.

3. keyboard as claimed in claim 1, wherein this keycap has an inside surface, and this block element is arranged on this inside surface.

4. keyboard as claimed in claim 3, wherein this block element comprises a teat and a top layer, this teat protrudes in this inside surface, and this top layer is formed on this teat.

5. keyboard as claimed in claim 4, wherein this top layer is a coating, a grinding layer or a sputtered layer.

6. keyboard as claimed in claim 3, wherein this stop section is a top layer, is formed on this inside surface.

7. keyboard as claimed in claim 6, wherein this top layer is a coating, a grinding layer or a sputtered layer.

8. a keyboard has a first end and a second end, comprising:

Support frame, wherein this support frame has light transmission;

Keycap can move between a primary importance and a second place, is connected with this support frame; And

Wherein when this keycap was positioned at this primary importance, penetrable this first end of a light arrived this second end; When this keycap was positioned at this second place, this block element stopped this light, made this light can't arrive this second end.

9. optical touch control apparatus comprises:

Body;

Keyboard is positioned on this body, has a first end and a second end, comprising:

Support frame;

Keycap can move between a primary importance and a second place, is connected with this support frame;

The block element is connected with this keycap, and with the same moved further of this keycap; And

Photocell provides a light to this keyboard;

Wherein when this keycap was positioned at this primary importance, penetrable this first end of this light arrived this second end; When this keycap was positioned at this second place, this block element stopped this light, made this light can't arrive this second end.

10. optical touch control apparatus as claimed in claim 9, wherein this support frame comprises a plurality of support components, and these many support components are parallel to each other.

11. optical touch control apparatus as claimed in claim 9, wherein this keycap has an inside surface, and this block element is arranged on this inside surface.

12. optical touch control apparatus as claimed in claim 11, wherein this block element comprises a teat and a top layer, and this teat protrudes in this inside surface, and this top layer is formed on this teat.

13. optical touch control apparatus as claimed in claim 12, wherein this top layer is a coating, a grinding layer or a sputtered layer.

14. optical touch control apparatus as claimed in claim 11, wherein this stop section is a top layer, is formed on this inside surface.

15. optical touch control apparatus as claimed in claim 14, wherein this top layer is a coating, a grinding layer or a sputtered layer.

16. optical touch control apparatus as claimed in claim 9, wherein this support frame and this keycap are one of the forming.

17. optical touch control apparatus as claimed in claim 9, wherein this support frame, this keycap and this block element are one of the forming.

18. optical touch control apparatus as claimed in claim 9, wherein this support frame has light transmission.

19. optical touch control apparatus as claimed in claim 9, wherein this block element does not have light transmission.

20. optical touch control apparatus as claimed in claim 9 also comprises a reflecting strips, is arranged at the edge of this body, wherein works as penetrable this first end of this light and arrives this second end, this light can arrive this reflecting strips, and by this reflecting strips reflection.