CN201163394Y - Touch detection apparatus used for notebook computer - Google Patents
Touch detection apparatus used for notebook computer Download PDFInfo
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- CN201163394Y CN201163394Y CNU2008200792212U CN200820079221U CN201163394Y CN 201163394 Y CN201163394 Y CN 201163394Y CN U2008200792212 U CNU2008200792212 U CN U2008200792212U CN 200820079221 U CN200820079221 U CN 200820079221U CN 201163394 Y CN201163394 Y CN 201163394Y
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- imageing sensor
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Abstract
The utility model discloses a touch detection device constructed by using image sensors on a notebook PC. The device consists of a touch sensor and a display screen which are arranged on the notebook PC, wherein, the touch sensor comprises at least two image sensors arranged at corners of the display screen, an optical axis of the touch sensor or an extension line equivalent to the optical axis is parallel to the surface of the screen; and the viewing angle of the image sensors can cover the surface of the whole display area of the display screen. In the device, the thickness direction of the image sensors is consistent with the thickness direction of the display screen of the notebook PC, a reflecting mirror is respectively arranged on the front of each image sensor and at the edge of the display screen to reflect the light parallel to the surface of the screen into lenses of the image sensors, namely an optical axis of the camera is parallel to the surface of a display panel. The device has the advantages of simple structure, low cost, small volume, and good applicability; and a set of same modules can be suitable for a plurality of dimensions of display screens.
Description
Technical field
The present invention relates to a kind of touch operation pick-up unit that is used on the notebook display screen, belong to the computer touch screen technology field, especially use the touch screen technology field of imageing sensor as detecting element.
Background technology
Have the touch detecting apparatus that is used for notebook now, mainly be to use the technical scheme of resistive film touch-screen, the function that a slice resistive film touch-screen realizes touching detection is installed on the display screen of notebook.Based on the shortcoming of resistive film touch-screen itself, this organization plan has born several shortcomings.
At first, the cladding material on the surface of resistive film touch-screen is soft organic film, and hardness is very low, can be worn to cause transparency to reduce after the touch operation of a period of time, influences the display effect of display; Even also can be scratched by touch objects such as nail, nibs and lose efficacy.Secondly, the transmittance of resistive film touch-screen generally is no more than 80%, is installed in the brightness that screen the place ahead can reduce screen.This just need make compromise on the cruising time of screen intensity and battery for battery powered notebook: perhaps stand screen intensity and reduce the display performance bring and descend, perhaps improve brightness and reduce cruising time of battery.The 3rd, the resistive film touch-screen is a kind of force sensing element, need apply certain pressure to screen surface during operation.With regard to very light, as to lack support and rotary notebook when using display screen, it is very careful to operate for weight own for this, and therefore the convenience of using is restricted.At last,, at least 2 ~ 3mm is arranged also generally, additionally increased the thickness and the weight of notebook though the thickness of resistive film touch-screen is very thin.In addition, the resistive film touch-screen also has the higher shortcoming of cost.
Number is that the United States Patent (USP) of US20060468956 has provided a kind of use camera senses touch soldier on large-sized monitor and determines touch point positional structure and method, but the CCD camera assembly in this structure hangs over the display next door outward, and its structure and size all are not suitable for the notebook of structure height compactness.Application number is that 200710117751.1 Chinese patent discloses a kind of artificial mobile information apparatus hand input device that uses camera, having solved on as undersized display screens such as mobile phones uses camera to realize the organization plan of touch and handwriting input, if but this organization plan is used for notebook, then or require camera that the super wide angle shot abilities of 180 degree are nearly arranged, perhaps require imageing sensor and screen edge that certain distance is arranged, therefore be not suitable for notebook.And, rely on and measure the touch objects distance that the size of imaging is come senses touch thing and imageing sensor on imageing sensor, for the notebook that is used for routine office work, design, precision is obviously not enough.
Summary of the invention
Purpose of the present invention exactly at the existing technological deficiency that is used for the touch detecting apparatus of notebook, discloses a kind of imageing sensor that uses and has made up the technical scheme of touch detecting apparatus on notebook.
Concrete structure of the present invention is to be made of the touch sensor and the display screen that are installed on the notebook computer, wherein said touch sensor is at least two imageing sensors that are installed in the display screen corner positions, and its optical axis or the extension line that is equal to optical axis are parallel to screen surface; The visual angle of described imageing sensor can cover the surface of entire display screen viewing area.
Because general cmos image sensor commonly used is little at the thickness of optical axis direction, but the size of the length and width direction vertical with optical axis is bigger, so best mounting means, be exactly that its thickness direction is consistent with the thickness direction of the display screen of notebook, like this its optical axis will become with the surface of display screen one 90 the degree or near 90 the degree angles, at this moment can a catoptron all be installed in the place ahead of described each imageing sensor; Its reflecting surface oblique camera lens and screen surface facing to imageing sensor can reflex to the light that is parallel to screen surface in the camera lens of imageing sensor; And this reflective mirror is installed on the frame of display screen of described notebook.
In this programme, described catoptron is installed in by a rotating shaft on the frame of display screen of described notebook.When using touch function, open reflective mirror and panel and get final product at an angle like this.Give prominence to outside display screen panel for fear of reflective mirror, the position of described catoptron can be installed on the panel of described frame, offer the depression that to hold described catoptron; The bottom of depression includes an opening that is used for arriving by catoptron the reflection ray in the imageing sensor camera lens.After reflective mirror is packed up, can drop in this depression like this.
Reflective mirror can also use other structure among the present invention: described catoptron is included within the projection of triangular prism shape of a hollow on the described notebook screen frame, is the part of described frame; A side inside surface away from described display screen on the described projection is a reflecting surface, and the side of close described screen is an optical transmission window, and the 3rd side is the opening of projection to frame inside, facing to the camera lens of imageing sensor.Use this structure, the reflective mirror optical transmission window protrudes from outside the display screen panel, at this moment just need be in the bight on the panel of described notebook keyboard, when display screen closes and the corresponding position of described projection, have the groove that a shape matches with described projection.
In the present invention, use two described imageing sensors, can be installed in two bights of the relative frame of the rotating shaft that is connected with the notebook fuselage with display screen, also can be installed in two bights of the frame that the rotating shaft that is connected with the notebook fuselage with display screen faces mutually.Certainly, also can use 4 imageing sensors, be installed in four bights of notebook display screen frame respectively.
The benefit of invention:
According to the top description of this invention, can see that the present invention has overcome the shortcoming of the employed touching technique of existing notebook, have advantage simple in structure, with low cost, that volume is small and exquisite, applicability is good, and a same grip assembly goes for the display screen of multiple size.
In the present invention, according to basic technical scheme, multiple concrete enforcement structure can be arranged.To a kind of embodiment of the present invention be described by means of accompanying drawing below.
Description of drawings
Fig. 1: the present invention is used for the general structure synoptic diagram of the touch detecting apparatus of notebook;
Fig. 2: the synoptic diagram of the structural relation of the reflective mirror of imageing sensor and its front;
The front elevation of the section of Fig. 3: Fig. 2;
Fig. 4: the structural representation of the reflective mirror of outstanding structure;
The front elevation of the section of Fig. 5: Fig. 4;
Fig. 6: the synoptic diagram that matches and cave in the reflective mirror of projection shown in Figure 4 on the notebook key panel.
Among the figure: 101, the notebook fuselage; 102, the display of notebook; 103, display pannel; 104, be installed in imageing sensor (the being commonly referred to as camera) assembly on the display frame bight; 105, imageing sensor is taken the outline line at angle (visual angle), perhaps is called maximum angle limitations line; 106, key panel; 201, be installed in the reflective mirror in imageing sensor camera lens the place ahead; Imageing sensor (camera); 203, the rotating shaft that is connected between reflective mirror and the display frame; 204, position, the transverse section schematic lines in the frame bight of installation camera; 301, the cover glass on the display pannel; 401, the catoptron and the optical transmission window of projection; 501, the reflective mirror in the projection; 502, the optical transmission window in the projection; 601, the groove that matches with the image sensor module of projection in the key panel bight.
Specific embodiments
Fig. 1 has provided the overall technological scheme when the present invention uses two imageing sensors.As shown in the figure, the bight at the frame of the display of notebook respectively is equipped with two imageing sensors (camera) assembly 104.This assembly can only be made of camera, and at this moment the optical axis of camera should parallel with the surface of display panel 103, makes it can detect touch objects on the display panel with best catching mode.But because general imageing sensor (mainly being the cmos element of low-power consumption) commonly used is little at the thickness of optical axis direction, but the size of the length and width direction vertical with optical axis is bigger, if install like this, it is a lot of that imageing sensor certainly will will be projected into panel 103 outsides of display 102, increased the complicacy that whole notebook computer design is produced, and be not easy to design frivolous product, so not preferred plan.Therefore, best mounting means, be exactly that its thickness direction is consistent with the thickness direction of the display screen of notebook, its optical axis will become one 90 degree with the surface of display screen or near the angles of 90 degree like this, and on the frame of the place ahead of described each imageing sensor, display screen a catoptron is installed all; Its reflecting surface oblique camera lens and screen surface facing to imageing sensor can reflex to the light that is parallel to screen surface in the camera lens of imageing sensor, the common composing images sensor module of these two parts.Like this, though the optical axis of camera is not parallel to the surface of display pannel 103, but its extension line through mirror reflects is parallel to screen surface, the optical axis that is equal to camera is parallel to the surface of display pannel, but but greatly reduces the height of the part that need be projected into panel 103 outsides.
If go into shown in Figure 2, catoptron 201 is installed in by a rotating shaft 203 on the frame of display screen of described notebook, open reflective mirror and become a suitable angle with panel when using touch function, the part light that touch objects reflected on the assurance display pannel 103 can get final product by the camera lens that reflective mirror arrives camera.Further, if the position of described catoptron is installed on the panel of described frame, the depression that can hold described catoptron is set, when not using touch function or close notebook, reflective mirror is packed up to be dropped in this depression, it is collapsible to be equivalent to reflective mirror, the consistency of thickness that so just can keep frame around the outside surface of reflective mirror and the display pannel 103, make after increasing camera and mirror assembly, not change the key panel 106 of notebook and the structure of other parts, guaranteed that notebook need not make extra sacrifice aspect other at volume and weight etc.Because the hardness of the diaphragm material of the panel surface of general desktop computer displays is lower, possible wearing and tearing or scuffing when preventing touch operation can also be installed one deck cover glass plate 301 again in the outside of panel 103.
In the present invention, operable another the not collapsible structure of imageing sensor (camera) assembly is as Fig. 4, shown in Figure 5.In Fig. 4, imageing sensor (camera) assembly 104 is made of camera and the projection 401 that is included in prism shape on the notebook screen frame, hollow; Reflective mirror 501 and optical transmission window 502 are installed, as shown in Figure 5 within this projection.In Fig. 5, the raised profile of this prism structure has been selected the shape of triangular prism for use, and a side inside surface away from described display screen on its protrusions is a reflecting surface, and promptly reflective mirror 501; Side near described screen is that 502, the three sides of optical transmission window are the opening of projection to frame inside, facing to the camera lens of imageing sensor.Use this structure, reflective mirror and optical transmission window, and the structure of the becoming one of display frame of notebook have strengthened the intensity of various piece greatly, are more suitable for moving and use.
If but adopt this structure; the reflective mirror optical transmission window will protrude from outside the display screen panel; at this moment also be in order to protect this protruding structure simultaneously for fear of the thickness that increases this bossing; just need be in the bight on the key panel 106 of described notebook fuselage 101; the groove 601 that a shape matches with described projection is set, as shown in Figure 6.The position of this groove, with when display screen closes and the position of described projection on key panel corresponding, guarantee that when notebook closed, described projection fell among this groove.Certainly, this groove need hold described projection down fully.
The principle that apparatus of the present invention are used for the senses touch thing is to adopt the technology of triangle location to realize, belonged to existing mature technology, concrete technical scheme can be referring to relevant patent documentation, number is the United States Patent (USP) of US20060468956 and the patent of being quoted thereof as described above, no longer describes in detail at this.
More than explanation is the two kind reasonable specific embodiments of the present invention when using two cameras, in these schemes, described two imageing sensors are installed in two bights of the relative frame of the rotating shaft that is connected with the notebook fuselage with display screen.This structure helps reducing the interference of dust and general top-down surround lighting.But the present invention's operable technical scheme when implementing is not limited only to these two kinds.Such as two bights (not providing among the figure) that described CCD camera assembly are installed in the frame that the rotating shaft that is connected with the notebook fuselage with display screen faces mutually, perhaps the bight at the two ends of other certain bar frames can be realized the Monitoring and Positioning to touch objects equally.Use 4 imageing sensors for another example, be installed in four bights of notebook display panel frame on every side respectively,, can improve the uniformity coefficient of resolution on whole screen the touch objects detection and location though increased the complicacy of system.Therefore, the foregoing description can't limit all concrete structures on the technical program basis, so protection scope of the present invention is not limited to above-mentioned concrete structure scheme.
Claims (9)
1. the touch detecting apparatus that is used for notebook, constitute by the touch sensor and the display screen that are installed on the notebook computer, it is characterized in that: described touch sensor is at least two imageing sensors that are installed in the display screen corner positions, and its optical axis or the extension line that is equal to optical axis are parallel to screen surface; The visual angle of described imageing sensor can cover the surface of entire display screen viewing area.
2. touch detecting apparatus according to claim 1 is characterized in that: the place ahead of described each imageing sensor all is equipped with a catoptron; The reflecting surface of described catoptron oblique camera lens and screen surface facing to imageing sensor can reflex to the light that is parallel to screen surface in the camera lens of imageing sensor; Described catoptron is installed on the frame of display screen of described notebook.
3. touch detecting apparatus according to claim 2 is characterized in that: described catoptron is installed in by a rotating shaft on the frame of display screen of described notebook.
4. touch detecting apparatus according to claim 3 is characterized in that: the position of described catoptron is installed on the panel of described frame, offers the depression that can hold described catoptron; And the bottom of this depression includes an opening that is used for arriving by catoptron the reflection ray in the imageing sensor camera lens.
5. touch detecting apparatus according to claim 2 is characterized in that: described catoptron is included within the projection of triangular prism shape of a hollow on the described notebook screen frame, is the part of described frame; A side inside surface away from described display screen on the described projection is a reflecting surface, and the side of close described screen is an optical transmission window, and the 3rd side is the opening of projection to frame inside, facing to the camera lens of imageing sensor.
6. touch detecting apparatus according to claim 5, it is characterized in that: the bight on the panel of described notebook keyboard, when display screen closes and the corresponding position of described projection, have the groove that a shape matches with described projection.
7. touch detecting apparatus according to claim 1 is characterized in that: described imageing sensor is two, is installed in two bights of the relative frame of the rotating shaft that is connected with the notebook fuselage with display screen.
8. touch detecting apparatus according to claim 1 is characterized in that: described imageing sensor is two, is installed in two bights of the frame that the rotating shaft that is connected with the notebook fuselage with display screen faces mutually.
9. touch detecting apparatus according to claim 1 is characterized in that: described imageing sensor is four, is installed in four bights of notebook display screen frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200792212U CN201163394Y (en) | 2008-03-06 | 2008-03-06 | Touch detection apparatus used for notebook computer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200792212U CN201163394Y (en) | 2008-03-06 | 2008-03-06 | Touch detection apparatus used for notebook computer |
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| Publication Number | Publication Date |
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| CN201163394Y true CN201163394Y (en) | 2008-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2008200792212U Expired - Lifetime CN201163394Y (en) | 2008-03-06 | 2008-03-06 | Touch detection apparatus used for notebook computer |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102073412A (en) * | 2009-11-24 | 2011-05-25 | 矽创电子股份有限公司 | Device for detecting position of touch panel |
| GB2477174A (en) * | 2010-01-25 | 2011-07-27 | Naveen Chawla | Right angled camera housing |
| CN102692804A (en) * | 2011-03-21 | 2012-09-26 | 联想(北京)有限公司 | Display screen and terminal device |
| CN102043430B (en) * | 2009-10-21 | 2015-03-18 | 致伸科技股份有限公司 | Laptop computer with multi-image acquisition function |
-
2008
- 2008-03-06 CN CNU2008200792212U patent/CN201163394Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102043430B (en) * | 2009-10-21 | 2015-03-18 | 致伸科技股份有限公司 | Laptop computer with multi-image acquisition function |
| CN102073412A (en) * | 2009-11-24 | 2011-05-25 | 矽创电子股份有限公司 | Device for detecting position of touch panel |
| GB2477174A (en) * | 2010-01-25 | 2011-07-27 | Naveen Chawla | Right angled camera housing |
| CN102692804A (en) * | 2011-03-21 | 2012-09-26 | 联想(北京)有限公司 | Display screen and terminal device |
| CN102692804B (en) * | 2011-03-21 | 2015-06-03 | 联想(北京)有限公司 | Display screen and terminal device |
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Legal Events
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: B, building 4, block M8, East Jiuxianqiao Road, Beijing, Chaoyang District, 100016 Patentee after: Beijing UNITOP New Technology Co., Ltd. Address before: B, building 4, block M8, East Jiuxianqiao Road, Beijing, Chaoyang District, 100016 Patentee before: UNITOP New Technology Co., Ltd. |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20081210 |
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| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Beijing UNITOP New Technology Co., Ltd. Document name: Notification of Expiration of Patent Right Duration |