CN102253515B - Optical touch display device and optical operation device - Google Patents
Optical touch display device and optical operation device Download PDFInfo
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- CN102253515B CN102253515B CN201010290146.6A CN201010290146A CN102253515B CN 102253515 B CN102253515 B CN 102253515B CN 201010290146 A CN201010290146 A CN 201010290146A CN 102253515 B CN102253515 B CN 102253515B
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Abstract
The invention discloses an optical touch display device and an optical operation device. The optical touch display device comprises a transparent display panel, a visible light source, an invisible light source, a backlight module, an image sensing device and a processing circuit, wherein the transparent display panel is provided with a first surface and a second surface which are opposite to each other, and the first surface is provided with a display area; the backlight module is configured on the second surface, and used for guiding the visible light and the invisible light entering the backlight module to the second surface; and the image sensing device is arranged on one corner of the display area and used for receiving the invisible light which is reflected by indicators in the display area after passing through the second surface and the first surface and directly enters the image sensing device. When the indicators are arranged in the display area and reflect the invisible light passing through the second surface and the first surface, so that when the image sensing device can sense the invisible light reflected by the indicant, the processing circuit calculates the position of the indicant relative to the display area by using the image sensed by the image sensing device.
Description
Technical field
The invention relates to a kind of touch control display apparatus, and particularly relevant for a kind of optical touch display apparatus.
Background technology
Touch control display apparatus has advantages of processing ease, so touch control display apparatus has been widely used in multiple electronic product in recent years, as mobile phone, personal digital assistant (personal digital assistant, PDA), digital camera, music player, computer, Satellite Navigation Set etc.
Touch control display apparatus can be divided into multiple according to its sensing principle, as resistance-type, condenser type or optical profile type etc.And being surrounding in its viewing area, existing optical touch display apparatus adds the frame of being made by reflectorized material, luminescent material or optical material, to utilize this frame to send bias light, and then with respect to the hidden position of bias light, judge that this indicant is with respect to the position of viewing area according to indicant.
Yet existing optical touch display apparatus but may cause judging by accident the problem of Referent position because of mechanism's flatness of frame or bending.
Summary of the invention
A wherein object of the present invention is to be to provide a kind of optical touch display apparatus.
Another object of the present invention is to be to provide a kind of optical manipulation device.
For reaching above-mentioned purpose, the present invention proposes a kind of optical touch display apparatus, and it includes: a Nonopaque type display panel, there is first surface and second, and first surface and the second face reverse side each other wherein, and first surface has viewing area; One backlight module, is disposed at above-mentioned second; One visible light source, in order to launch visible ray to backlight module, so that backlight module leads above-mentioned second by entering its inner visible ray; One invisible light light source, in order to launch invisible light to backlight module, so that backlight module leads above-mentioned second by entering its inner invisible light; One Image sensor apparatus, be arranged at a corner of viewing area, be used for receiving invisible light, with the image of top, sensing viewing area, invisible light directly enters Image sensor apparatus via the indicant reflection in viewing area through second afterwards with first surface; An and treatment circuit.When having indicant in viewing area and reflecting through the invisible light of second and first surface, while making Image sensor apparatus can sense the invisible light that indicant reflects, the convenient image sensing with Image sensor apparatus for the treatment of circuit calculates indicant with respect to the position of viewing area.
In an embodiment of optical touch display apparatus of the present invention, above-mentioned backlight module has four sides, and above-mentioned visible light source and invisible light light source are arranged on the same side in above-mentioned four sides, or be separately positioned on wherein two sides of above-mentioned four sides, and in four sides of backlight module, towards the side of visible light source with towards the side of invisible light light source, be all transparent surface, remaining other sides are non-transparent surface or reflective surface.
In an embodiment of optical touch display apparatus of the present invention, the inside of above-mentioned Nonopaque type display panel has liquid crystal layer, and the inside of backlight module has reflecting part.Described reflecting part extend to backlight module not towards the side of visible light source and invisible light light source, so that these sides form non-transparent surface.
In an embodiment of optical touch display apparatus of the present invention, in above-mentioned reflecting part, the part relative with second of Nonopaque type display panel has pattern, and this pattern in order to by the photoconduction receiving to above-mentioned second, and then allow the visible ray of entry of backlight module internal and penetrable this Nonopaque type display panel of invisible light and inner liquid crystal layer and viewing area thereof.
For reaching above-mentioned purpose, the present invention proposes a kind of optical manipulation device, and it includes: a light-passing board, there is first surface and second, and first surface and the second face reverse side each other; One backlight module, is disposed at above-mentioned second; One first light source, in order to provide the first light to backlight module, so that backlight module leads above-mentioned by the first light that enters its inside second; One Image sensor apparatus, for receiving the first light, with the image of this first surface top of sensing, and produces sensing document, and the first light directly enters Image sensor apparatus via the indicant reflection on light-passing board through second afterwards with first surface; And
One treatment circuit, produces object information in order to the sensing document according to above-mentioned.
In an embodiment of optical manipulation device of the present invention, the first light that above-mentioned the first light source provides is non-visible light, and the first above-mentioned light source comprises an infrared light sources.
In an embodiment of optical manipulation device of the present invention, above-mentioned optical manipulation device more includes secondary light source.This secondary light source is in order to provide the second light to backlight module, so that backlight module leads above-mentioned by the second light that enters its inside second.Wherein said the second light is a visible ray.
In an embodiment of optical manipulation device of the present invention, in above-mentioned light-passing board, have more liquid crystal layer.
In an embodiment of optical manipulation device of the present invention, above-mentioned sensing document is complete image or Luminance Distribution information.
In an embodiment of optical manipulation device of the present invention, above-mentioned backlight module has four sides, and the first light source is arranged at one of them side of these four sides, and in four sides of backlight module, towards the side of the first light source, be transparent surface, remaining other sides are non-transparent surface or reflective surface.
In an embodiment of optical manipulation device of the present invention, the inside of above-mentioned backlight module has light element.This light element is in order to lead above-mentioned by the first light of entry of backlight module second.
Optical touch display apparatus proposed by the invention is to add invisible light light source, Image sensor apparatus and treatment circuit in existing Nonopaque type display device, and the invisible light that utilizes the backlight module in existing Nonopaque type display device that invisible light light source the is launched junction of this Nonopaque type display panel and backlight module that leads, and then allow invisible light penetrable this Nonopaque type display panel and viewing area thereof.Thus, when having an indicant in viewing area and reflecting through the invisible light of viewing area, while making Image sensor apparatus in order to sensing viewing area top image can sense the invisible light that indicant reflects, just can further utilize the image that treatment circuit senses according to Image sensor apparatus and calculate indicant with respect to the position of viewing area.
And optical manipulation device proposed by the invention is comprised of light-passing board, backlight module, light source, Image sensor apparatus and treatment circuit.Described light-passing board has first surface and second, and first surface and the second face reverse side each other.Described backlight module is disposed at above-mentioned second.Light source is in order to provide light to backlight module, so that backlight module leads above-mentioned second by entering its inner light.And Image sensor apparatus is in order to the image of the above-mentioned first surface of sensing top, to produce sensing document.As for treatment circuit, it is in order to produce object information according to sensing document.
For above and other object of the present invention, feature and advantage can be become apparent, preferred embodiment cited below particularly, and coordinate accompanying drawing, be described in detail below.
Accompanying drawing explanation
Fig. 1 is the schematic perspective view according to the optical touch display apparatus of one embodiment of the invention.
Fig. 2 is the running schematic diagram of the backlight module of Fig. 1.
Fig. 3 is the schematic perspective view according to the optical touch display apparatus of another embodiment of the present invention.
Fig. 4 is the running schematic diagram of the backlight module of Fig. 3.
Fig. 5 is the schematic perspective view according to the optical manipulation device of one embodiment of the invention.
[main element symbol description]
100,300: optical touch display apparatus 102: Nonopaque type display panel
102-1,502-1: first surface 102-2,502-2: second
102-3: viewing area 102-A: liquid crystal layer
104,304,504: backlight module 104-2,304-2: reflecting part
106: visible light source 108: invisible light light source
110,510: Image sensor apparatus 112,512: treatment circuit
120: indicant 500: optical manipulation device
502: light-passing board 506,508: light source
Embodiment
The first embodiment:
Fig. 1 is the schematic perspective view according to the optical touch display apparatus of one embodiment of the invention.Please refer to Fig. 1, this optical touch display apparatus 100 includes Nonopaque type display panel 102, backlight module 104, visible light source 106, invisible light light source 108, Image sensor apparatus 110 and treatment circuit 112.Nonopaque type display panel 102 has first surface 102-1 and second 102-2, and first surface 102-1 and second 102-2 be reverse side each other, and first surface 102-1 has viewing area 102-3.In this example, viewing area 102-3 is shaped as a quadrilateral, is preferably rectangle.In addition, the inside of Nonopaque type display panel 102 also has a liquid crystal layer (this figure does not illustrate, in detail aftermentioned).Backlight module 104 is disposed at above-mentioned second 102-2.Image sensor apparatus 110 is arranged on a corner of viewing area 102-3, in order to the image of sensing viewing area 102-3 top.Treatment circuit 112 electric property coupling Image sensor apparatus 110, the image being sensed to receive Image sensor apparatus 110.
As for visible light source 106, it is in order to launch visible ray to backlight module 104, so that backlight module 104 will enter its inner visible ray above-mentioned second 102-2 that lead.Invisible light light source 108 is in order to launch invisible light to backlight module 104, so that backlight module 104 will enter its inner invisible light above-mentioned second 102-2 that lead.In addition, in four sides of backlight module 104, towards the side of visible light source 106 with towards the side of invisible light light source 108, be all transparent surface, other two sides are non-transparent surface or reflective surface.The function mode of backlight module 104 will further utilize Fig. 2 to describe, and take other described sides and all adopt non-transparent surface as example.
Fig. 2 is the running schematic diagram of the backlight module of Fig. 1.In Fig. 2, indicate and be expressed as same item with the identical person of sign in Fig. 1, and indicate the liquid crystal layer that 102-A is expressed as Nonopaque type display panel 102 inside, as for sign 104-2, be expressed as the reflecting part of backlight module 104 inside.This reflecting part 104-2 extends to not two sides with invisible light light source 108 towards visible light source 106 of backlight module 104, so that these two sides form non-transparent surface.In addition, in reflecting part 104-2, the part relative with second 102-2 of Nonopaque type display panel 102 has pattern, and this pattern in order to by the photoconduction receiving to second above-mentioned 102-2.As shown in Figure 2, visible light source 106 can be launched visible ray to backlight module 104, and invisible light light source 108 can be launched invisible lights to backlight module 104.Be with, backlight module 104 can utilize pattern on its inner reflecting part 104-2 by the visible ray of entry of backlight module 104 inside and invisible light above-mentioned second 102-2 that lead, and then allows and enter its inner visible ray and the penetrable Nonopaque type display panel 102 of invisible light and inner liquid crystal layer 102-A and surperficial viewing area 102-3.
Referring again to Fig. 1.Because the invisible light of entry of backlight module 104 inside finally can penetrate Nonopaque type display panel 102 and inner liquid crystal layer 102-A and surperficial viewing area 102-3, therefore when having an indicant 120 in the 102-3 of viewing area, and reflect through the invisible light of viewing area 102-3, while making Image sensor apparatus 110 can sense the invisible light that indicant 120 reflects, the image that treatment circuit 112 just can utilize Image sensor apparatus 110 to sense calculates indicant 120 with respect to the position of viewing area 102-3.
The second embodiment:
By the teaching of the first embodiment, even having, this area conventionally knows that the knowledgeable should know the visible light source of optical touch display apparatus 100 106 with invisible light light source 108 pendulum at same position, also can implement the present invention.With Fig. 3, be described further.
Fig. 3 is the schematic perspective view according to the optical touch display apparatus of another embodiment of the present invention.In Fig. 3, indicate and be expressed as same item with the identical person of sign in Fig. 1.Please refer to Fig. 3, the difference of this optical touch display apparatus 300 and aforementioned optical touch display apparatus 100, is that the visible light source 106 in optical touch display apparatus 300 is that pendulum is in same position with invisible light light source 108.In addition, backlight module 304 is also different from aforesaid backlight module 104.In four sides of this backlight module 304, towards visible light source 106, be only transparent surface with the side of invisible light light source 108, other three sides are non-transparent surface or reflective surface.The function mode of backlight module 304 will further utilize Fig. 4 to describe, and take other described sides and all adopt non-transparent surface as example.
Fig. 4 is the running schematic diagram of the backlight module of Fig. 3.In Fig. 4, indicate and be expressed as same item with the identical person of sign in Fig. 3, and indicate the liquid crystal layer that 102-A is expressed as Nonopaque type display panel 102 inside, as for sign 304-2, be expressed as the reflecting part of backlight module 304 inside.This reflecting part 304-2 extends to not three sides with invisible light light source 108 towards visible light source 106 of backlight module 304, so that these three sides form non-transparent surface.In addition, in reflecting part 304-2, the part relative with second 102-2 of Nonopaque type display panel 102 also has pattern, and this pattern in order to by the photoconduction receiving to second above-mentioned 102-2.As shown in Figure 4, visible light source 106 can be launched visible ray to backlight module 304, and invisible light light source 108 can be launched invisible lights to backlight module 304.Be with, backlight module 304 can utilize pattern on its inner reflecting part 304-2 to enter its inner visible ray and invisible light above-mentioned second 102-2 that lead, and then allows and enter its inner visible ray and the penetrable Nonopaque type display panel 102 of invisible light and inner liquid crystal layer 102-A and surperficial viewing area 102-3.
Referring again to Fig. 3.Because the invisible light of entry of backlight module 304 inside finally can penetrate Nonopaque type display panel 102 and inner liquid crystal layer 102-A and surperficial viewing area 102-3, therefore when having an indicant 120 in the 102-3 of viewing area, and reflect through the invisible light of viewing area 102-3, while making Image sensor apparatus 110 can sense the invisible light that indicant 120 reflects, the image that treatment circuit 112 just can utilize Image sensor apparatus 110 to sense calculates indicant 120 with respect to the position of viewing area 102-3.
The 3rd embodiment:
Proposing in this embodiment, is a kind of optical manipulation device, as shown in Figure 5.Fig. 5 is the schematic perspective view according to the optical manipulation device of one embodiment of the invention.Please refer to Fig. 5, this optical manipulation device 500 mainly includes light-passing board 502, backlight module 504, light source 506, Image sensor apparatus 510 and treatment circuit 512.Described light-passing board 502 has first surface 502-1 and second 502-2, and first surface 502-1 and second 502-2 reverse side each other.Described backlight module 504 is disposed at second 502-2.Described light source 506 is in order to provide the first light to backlight module 504, so that backlight module 504 will enter second 502-2 of the first light guiding of its inside.And described Image sensor apparatus 510 is in order to the image of sensing first surface 502-1 top, to produce sensing document.Described sensing document can be complete image or Luminance Distribution information.So-called Luminance Distribution information is the Luminance Distribution of every row pixel of institute's sensing image.As for described treatment circuit 512, it produces object information in order to the sensing document according to above-mentioned, for example, be to produce the object information that is relevant to indicant 520.And so-called object information is for example that indicant 520 is with respect to the position of first surface 502-1.
In this example, the first light that light source 506 provides is non-visible light, and this light source 506 is for example to adopt an infrared light sources to implement.In addition, optical manipulation device 500 more can further comprise light source 508.And this light source 508 is in order to provide the second light to backlight module 504, so that backlight module 504 will enter second 502-2 of the second light guiding of its inside, wherein said the second light is visible ray.
Because backlight module 504 has four sides, therefore light source 506 and 508 can be wherein two sides that are arranged at respectively these four sides, also can be the same side being all arranged in these four sides, as long as in four sides of backlight module 504, side towards light source 506 and 508 is all transparent surface, and remaining other sides are non-transparent surface or reflective surface.
In addition, the inside of backlight module 504 can further adopt light element (not illustrating), to utilize this light element by the first light of entry of backlight module 504 and second 502-2 of the second light guiding.Further, in light-passing board 502, also can there is liquid crystal layer (not illustrating).
In sum, optical touch display apparatus proposed by the invention is to add invisible light light source, Image sensor apparatus and treatment circuit in existing Nonopaque type display device, and utilize invisible light guiding Nonopaque type display panel that the backlight module in existing Nonopaque type display device launches invisible light light source and the junction of backlight module, and then allow the penetrable Nonopaque type display panel of invisible light and viewing area thereof.Thus, when having an indicant in viewing area and reflecting through the invisible light of viewing area, while making Image sensor apparatus in order to sensing viewing area top image can sense the invisible light that indicant reflects, just can further utilize the image that treatment circuit senses according to Image sensor apparatus and calculate indicant with respect to the position of viewing area.
And optical manipulation device proposed by the invention is comprised of light-passing board, backlight module, light source, Image sensor apparatus and treatment circuit.Described light-passing board has first surface and second, and first surface and the second face reverse side each other.Described backlight module is disposed at above-mentioned second.Light source is in order to provide light to backlight module, so that backlight module leads above-mentioned second by entering its inner light.And Image sensor apparatus is in order to the image of the above-mentioned first surface of sensing top, to produce sensing document.As for treatment circuit, it is in order to produce object information according to sensing document.
Although the present invention discloses as above with preferred embodiment; so it is not in order to limit the present invention; persond having ordinary knowledge in the technical field of the present invention; without departing from the spirit and scope of the present invention; when doing a little change and retouching, thus protection scope of the present invention when with application range the person of being defined be as the criterion.
Claims (11)
1. an optical touch display apparatus, is characterized in that comprising:
A Nonopaque type display panel, has first surface and second, and this first surface and this second face be reverse side each other, and this first surface has a viewing area;
A backlight module, is disposed at this second;
A visible light source, in order to launch visible ray to this backlight module, so that this backlight module leads this second by entering its inner visible ray;
An invisible light light source, in order to launch invisible light to this backlight module, so that this backlight module leads this second by entering its inner invisible light;
An Image sensor apparatus, be arranged at a corner of this viewing area, be used for receiving invisible light, with the image of this top, viewing area of sensing, this invisible light directly enters this Image sensor apparatus after reflecting via the indicant in this viewing area afterwards with this first surface through this second; And
A treatment circuit, when this indicant is in this viewing area, and reflect through the invisible light of this second and this first surface, while making this Image sensor apparatus can sense this invisible light that this indicant reflects, this treatment circuit is convenient calculates this indicant with respect to the position of this viewing area with the image that this Image sensor apparatus senses.
2. optical touch display apparatus as claimed in claim 1, it is characterized in that: this backlight module has four sides, this visible light source and this invisible light light source are arranged on the same side in these four sides, or be separately positioned on wherein two sides of these four sides, and in these four sides of this backlight module, towards the side of this visible light source with towards the side of this invisible light light source, be all transparent surface, remaining other sides are non-transparent surface or reflective surface.
3. optical touch display apparatus as claimed in claim 2, it is characterized in that: the inside of this Nonopaque type display panel has a liquid crystal layer, and the inside of this backlight module has a reflecting part, this reflecting part extend to this backlight module not towards the side of this visible light source and this invisible light light source, so that these sides form non-transparent surface.
4. optical touch display apparatus as claimed in claim 3, it is characterized in that: in this reflecting part, the part relative with this second of this Nonopaque type display panel has pattern, and this pattern in order to by the photoconduction receiving to this second, make to enter the visible ray of this backlight module inside and penetrable this Nonopaque type display panel of invisible light and inner this liquid crystal layer and this viewing area thereof.
5. an optical manipulation device, is characterized in that comprising:
A light-passing board, has first surface and one second, and this first surface and this second face be reverse side each other;
A backlight module, is disposed at this second;
First light source, in order to provide the first light to this backlight module, so that this backlight module leads this second by this first light that enters its inside;
An Image sensor apparatus, be used for receiving the first light, with the image of this first surface top of sensing, and produce sensing document, this first light directly enters this Image sensor apparatus via the indicant reflection on this light-passing board through this second afterwards with this first surface; And
A treatment circuit, in order to produce object information according to this sensing document.
6. optical manipulation device as claimed in claim 5, is characterized in that: this first light that this first light source provides is non-visible light, and this first light source comprises infrared light sources.
7. optical manipulation device as claimed in claim 6, is characterized in that more comprising:
A secondary light source, in order to provide the second light to this backlight module, so that this backlight module leads this second by this second light that enters its inside, wherein this second light is visible ray.
8. optical manipulation device as claimed in claim 5, is characterized in that: in this light-passing board, have more a liquid crystal layer.
9. optical manipulation device as claimed in claim 5, is characterized in that: this sensing document is complete image or Luminance Distribution information.
10. optical manipulation device as claimed in claim 5, it is characterized in that: this backlight module has four sides, this first light source is arranged at one of them side of these four sides, and in these four sides of this backlight module, towards the side of this first light source, be transparent surface, remaining other sides are non-transparent surface or reflective surface.
11. optical manipulation devices as claimed in claim 10, is characterized in that: the inside of this backlight module has light element, and this light element is in order to lead this second by this first light that enters this backlight module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010290146.6A CN102253515B (en) | 2010-05-20 | 2010-09-25 | Optical touch display device and optical operation device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010177858.7 | 2010-05-20 | ||
| CN201010177858 | 2010-05-20 | ||
| CN201010290146.6A CN102253515B (en) | 2010-05-20 | 2010-09-25 | Optical touch display device and optical operation device |
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| CN102253515A CN102253515A (en) | 2011-11-23 |
| CN102253515B true CN102253515B (en) | 2014-04-02 |
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| CN201010290146.6A Expired - Fee Related CN102253515B (en) | 2010-05-20 | 2010-09-25 | Optical touch display device and optical operation device |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103389833A (en) * | 2012-05-10 | 2013-11-13 | 信泰光学(深圳)有限公司 | Light sensing type touch sensing device as well as light source module and optical lens of light sensing type touch sensing device |
| CN103032811A (en) * | 2013-01-06 | 2013-04-10 | 深圳市华星光电技术有限公司 | Backlight module |
| CN110750169B (en) * | 2019-09-20 | 2023-10-10 | 苏州佳世达电通有限公司 | touch display device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200928917A (en) * | 2007-12-28 | 2009-07-01 | Ibm | Optical touch panel |
| CN101634406A (en) * | 2008-07-24 | 2010-01-27 | 爱普生映像元器件有限公司 | Illumination device, coordinate inputting device, electro-optical device, and electronic apparatus |
| CN101819340A (en) * | 2009-08-21 | 2010-09-01 | 程抒一 | Infrared multi-point touch screen |
| CN101859206A (en) * | 2009-04-08 | 2010-10-13 | 鸿富锦精密工业（深圳）有限公司 | Touch display device |
| CN102043272A (en) * | 2009-10-23 | 2011-05-04 | 乐金显示有限公司 | Liquid crystal display device |
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2010
- 2010-09-25 CN CN201010290146.6A patent/CN102253515B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200928917A (en) * | 2007-12-28 | 2009-07-01 | Ibm | Optical touch panel |
| CN101634406A (en) * | 2008-07-24 | 2010-01-27 | 爱普生映像元器件有限公司 | Illumination device, coordinate inputting device, electro-optical device, and electronic apparatus |
| CN101859206A (en) * | 2009-04-08 | 2010-10-13 | 鸿富锦精密工业（深圳）有限公司 | Touch display device |
| CN101819340A (en) * | 2009-08-21 | 2010-09-01 | 程抒一 | Infrared multi-point touch screen |
| CN102043272A (en) * | 2009-10-23 | 2011-05-04 | 乐金显示有限公司 | Liquid crystal display device |
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