CN102012768A - Optical touch display device - Google Patents
Optical touch display device Download PDFInfo
- Publication number
- CN102012768A CN102012768A CN2009101716925A CN200910171692A CN102012768A CN 102012768 A CN102012768 A CN 102012768A CN 2009101716925 A CN2009101716925 A CN 2009101716925A CN 200910171692 A CN200910171692 A CN 200910171692A CN 102012768 A CN102012768 A CN 102012768A
- Authority
- CN
- China
- Prior art keywords
- limit
- display panel
- directional light
- sensing
- reflecting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Position Input By Displaying (AREA)
Abstract
The invention relates to an optical touch display device, which comprises a display panel, a light source module and a sensing module, wherein the display panel has a first side, a second side, a third side and a fourth side; the first side is adjacent to the second side, the third side is opposite to the first side, and the fourth side is opposite to the second side; the light source module is arranged beside the first and second sides of the display panel, and is used for providing first parallel light and second parallel light passing through the upper part of the display surface of the display panel; the first parallel light passes through the third side of the display panel through the first side of the display panel; the second parallel light passes through the fourth side of the display panel through the second side of the display panel; and the sensing module is arranged beside the third and fourth sides of the display panel so as to sense the first and second parallel light. The optical touch display device has better reliability.
Description
Technical field
The present invention relates to a kind of touch control display apparatus, particularly relate to a kind of optical touch control display device.
Background technology
Touch control display apparatus has the advantage 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 digitalassistant, PDA), digital camera, music player, computer, Satellite Navigation Set etc.
Touch control display apparatus mainly comprises display panel and the contact panel that is superimposed, and wherein display panel is in order to display frame, and contact panel can be responded to user's control action.Contact panel can be divided into multiple according to its principle of work, common have electric resistance touch-control panel and a capacitance type touch-control panel, and wherein electric resistance touch-control panel has the not high shortcoming of sensitivity, so damage because of user's application of force is excessive easily.Capacitance type touch-control panel then has the shortcoming that costs an arm and a leg, causes misoperation easily because of factors such as static or humidity.
This shows that above-mentioned existing touch control display apparatus obviously still has inconvenience and defective, and demands urgently further being improved in structure and use.In order to solve the problem of above-mentioned existence, relevant manufacturer there's no one who doesn't or isn't seeks solution painstakingly, but do not see always that for a long time suitable design finished by development, and common product does not have appropriate structure to address the above problem, develop the touch control display apparatus that a kind of cost is lower and fiduciary level is preferable, this obviously is the problem that the anxious desire of relevant dealer solves.Therefore the optical touch control display device of how to found a kind of new structure belongs to one of current important research and development problem in fact, and also becoming the current industry utmost point needs improved target.
Summary of the invention
The objective of the invention is to, overcome the defective that existing touch control display apparatus exists, and a kind of optical touch control display device of new structure is provided, technical matters to be solved is to make it have the advantage that cost is lower and fiduciary level is preferable, is very suitable for practicality.
The object of the invention to solve the technical problems realizes by the following technical solutions.According to the optical touch control display device that the present invention proposes, it comprises a display panel, a light source module and a sensing module.Display panel has one first limit, one second limit, one the 3rd limit and one the 4th limit, and wherein first limit is adjacent with second limit, and the 3rd limit is relative with first limit, and the 4th limit is relative with second limit.Light source module is disposed at by first limit and second limit of display panel, and light source module is suitable for providing one first directional light and one second directional light by the display surface top of display panel.By the 3rd limit of display panel, second directional light passes through the 4th limit of display panel to first directional light via second limit of display panel via first limit of display panel.Sensing module is disposed at by the 3rd limit and the 4th limit of display panel, with sensing first directional light and second directional light.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
In one embodiment of this invention, above-mentioned sensing module comprises one first sensing element and one second sensing element.First sensing element is relative with the 3rd limit of display panel, and with sensing first directional light, and second sensing element is relative with the 4th limit of display panel, with sensing second directional light.
In one embodiment of this invention, above-mentioned sensing module comprises one first reflecting element, one second reflecting element, one first sensing element and one second sensing element.First reflecting element is relative with the 3rd limit of display panel, and reflecting first directional light, and second reflecting element is relative with the 4th limit of display panel, to reflect second directional light.First sensing element is disposed at by on the bang path of first directional light of first reflecting element reflection, and with sensing first directional light, and second sensing element is disposed at by on the bang path of second directional light of second reflecting element reflection, with sensing second directional light.In addition, first reflecting element can be one first prism, and has one first incidence surface, one first reflecting surface and one first exiting surface.First incidence surface is relative with the 3rd limit of display panel, and first exiting surface is relative with first sensing element, and first reflecting surface is connected between first incidence surface and first exiting surface.Second reflecting element can be one second prism, and has one second incidence surface, one second reflecting surface and one second exiting surface.Second incidence surface is relative with the 4th limit of display panel, and second exiting surface is relative with second sensing element, and second reflecting surface is connected between second incidence surface and second exiting surface.In addition, sensing module can more comprise one first refracting element and one second refracting element.First refracting element is disposed between the 3rd limit of first reflecting element and display panel, and second refracting element is disposed between the 4th limit of second reflecting element and display panel.Above-mentioned first refracting element and second refracting element comprise at least one prism respectively.The first above-mentioned refracting element contacts first reflecting element, and second refracting element contacts second reflecting element.
In one embodiment of this invention, above-mentioned sensing module comprises one first reflecting element, one second reflecting element and a sensing element.First reflecting element is relative with the 3rd limit of display panel, and reflecting first directional light, and second reflecting element is relative with the 4th limit of display panel, to reflect second directional light.Sensing element is disposed between first reflecting element and second reflecting element, and is positioned on the bang path of first directional light and second directional light.Sensing element has in order to one first sensing region of sensing first directional light and one second sensing region in order to sensing second directional light.In addition, sensing module can more comprise one first refracting element and one second refracting element.First refracting element is disposed between the 3rd limit of first reflecting element and display panel, and second refracting element is disposed between the 4th limit of second reflecting element and display panel.First refracting element and second refracting element comprise at least one prism respectively.In addition, sensing module can more comprise a prism that is disposed between first reflecting element and second reflecting element, and it has in order to one first reflecting surface that first directional light is reflexed to first sensing region and in order to second directional light is reflexed to one second reflecting surface of second sensing region.
In one embodiment of this invention, the first above-mentioned directional light and second directional light are infrared light, and this first light source and this secondary light source comprise a plurality of pointolites respectively.
In one embodiment of this invention, above-mentioned light source module comprises one first light source and a secondary light source.First light source is relative with first limit of display panel, and first light source is suitable for providing first directional light.Secondary light source is relative with second limit of display panel, and secondary light source is suitable for providing second directional light.
In one embodiment of this invention, above-mentioned light source module comprises one first light source, a secondary light source, one the 3rd reflecting element and one the 4th reflecting element.The 3rd reflecting element is relative with first limit of display panel, and first light source is suitable for providing first directional light to the three reflecting elements, and the 3rd reflecting element is suitable for reflecting first directional light and makes the display surface top of first directional light by display panel.The 4th reflecting element is relative with second limit of display panel, and secondary light source is suitable for providing second directional light to the four reflecting elements, and the 4th reflecting element is suitable for reflecting second directional light and makes the display surface top of second directional light by display panel.
In one embodiment of this invention, above-mentioned light source module more comprises a third reflect element and a fourth reflect element.The third reflect arrangements of components is between first limit of the 3rd reflecting element and display panel, and the fourth reflect arrangements of components is between second limit of the 4th reflecting element and display panel.
By technique scheme, optical touch control display device of the present invention has following advantage and beneficial effect at least:
Optical touch control display device of the present invention is first directional light and second directional light that adopts sensing module to come the sensor light source module to be provided.When carrying out control action on the display surface of user at display panel, part first directional light and part second directional light can be subjected to stopping of shade (as user's finger or control pen etc.) and can't be passed to sensing module, so sensing module can calculate the position of shade according to the position of part first directional light that is blocked and part second directional light.Because the present invention adopts the mode of optics to come sensing user's control action, can avoid the shortcoming of existing known electric resistance touch-control panel and capacitance type touch-control panel.Therefore, optical touch control display device of the present invention has the advantage that fiduciary level is preferable and production cost is low.
In sum, the present invention has obvious improvement technically, and has tangible good effect, really is a new and innovative, progressive, practical new design.
Above-mentioned explanation only is the general introduction of technical solution of the present invention, for can clearer understanding technological means of the present invention, and can be implemented according to the content of instructions, and for above-mentioned and other purposes, feature and advantage of the present invention can be become apparent, below especially exemplified by preferred embodiment, and conjunction with figs., be described in detail as follows.
Description of drawings
Fig. 1 is the synoptic diagram of a kind of optical touch control display device of one embodiment of the invention.
Fig. 2 is the synoptic diagram of a kind of optical touch control display device of another embodiment of the present invention.
Fig. 3 is the synoptic diagram of a kind of optical touch control display device of another embodiment of the present invention.
Fig. 4 A is the synoptic diagram of a kind of refracting element of one embodiment of the invention.
Fig. 4 B is the synoptic diagram of the another kind of refracting element of one embodiment of the invention.
Fig. 5 is the synoptic diagram of a kind of optical touch control display device of another embodiment of the present invention.
Fig. 6 is the synoptic diagram of a kind of optical touch control display device of another embodiment of the present invention.
Fig. 7 is the synoptic diagram of a kind of optical touch control display device of another embodiment of the present invention.
Fig. 8 is the synoptic diagram of a kind of light source module of one embodiment of the invention.
Fig. 9 is the synoptic diagram of a kind of light source module of another embodiment of the present invention.
50: shade
100,100a, 100b, 100c, 100d, 100e: optical touch control display device
110: 112: the first limits of display panel
116: the three limits, 114: the second limits
The limit 119 in 118: the four: display surface
120,120 ', 120 ": 122: the first light sources of light source module
126: the three reflecting elements of 125: the second directional lights
127: 128: the four reflecting elements of third reflect element
129: fourth reflect element 130,130a, 130b: sensing module
Sensing element 133,135 in 132: the first: sensing face
136: the first reflecting elements of 134: the second sensing elements
136a: the first incidence surface 136b: first reflecting surface
136c: 138: the second reflecting elements of first exiting surface
138a: the second incidence surface 138b: second reflecting surface
138c: 142: the first refracting elements of second exiting surface
Refracting element 146 in 144: the second: sensing element
146a: the first sensing area 146b: second sensing area
148,152,154,156: prism 148a: first reflecting surface
148b: second reflecting surface
Embodiment
Reach technological means and the effect that predetermined goal of the invention is taked for further setting forth the present invention, below in conjunction with accompanying drawing and preferred embodiment, to its embodiment of optical touch control display device, structure, feature and the effect thereof that foundation the present invention proposes, describe in detail as after.
Fig. 1 is the synoptic diagram of a kind of optical touch control display device of one embodiment of the invention.Please refer to shown in Figure 1ly, the optical touch control display device 100 of present embodiment comprises a display panel 110, a light source module 120 and a sensing module 130.Display panel 110 has one first limit 112, one second limit 114, one the 3rd limit 116 and one the 4th limit 118, and wherein first limit 112 is adjacent with second limit 114, and the 3rd limit 116 is relative with first limit 112, and the 4th limit 118 is relative with second limit 114.Light source module 120 is disposed at first limit 112 and 114 sides, second limit of display panel 110, and light source module 120 is suitable for providing one first directional light 123 and one second directional light 125 by a display surface 119 tops of display panel 110.First directional light 123 passes through the 4th limit 118 of display panel 110 via second limit 114 of display panel 110 by the 3rd limit 116, the second directional lights 125 of display panel 110 via first limit 112 of display panel 110.Sensing module 130 is disposed at the 3rd limit 116 and 118 sides, the 4th limit of display panel 110, with sensing first directional light 123 and second directional light 125.
In the above-mentioned optical touch control display device 100, display panel 110 can be display panels (liquid crystal display panel, LCD panel), electrophoretic display panel (electrophoresis display panel, EPD panel), plasma display (plasmadisplay panel, PDP) or organic electric-excitation luminescent displaying panel (organicelectroluminesence display panel, OELD panel) etc., but not as limit.In addition, light source module 120 for example comprises one first light source 122 and a secondary light source 124.First light source 122 for example is the strip light source with secondary light source 124.First light source 122 is relative with first limit 112 of display panel 110, and first light source 122 is suitable for first directional light 123 that provides above-mentioned.Secondary light source 124 is relative with second limit 114 of display panel 110, and secondary light source 124 is suitable for second directional light 125 that provides above-mentioned.
Hold above-mentionedly, first directional light 123 and second directional light 125 for example are infrared light.First light source 122 can comprise a plurality of pointolites (figure does not show) respectively with secondary light source 124, and the orientation of these pointolites is to arrange along first light source 122 and the bearing of trend of secondary light source 124.Pointolite can be light emitting diode (light emitting diode, LED), laser diode (laser diode, LD) or other suitable pointolites.In addition, sensing module 130 comprises one first sensing element 132 and one second sensing element 134.First sensing element 132 is relative with the 3rd limit 116 of display panel 110, and with sensing first directional light 123, and second sensing element 132 is relative with the 4th limit 118 of display panel 110, with sensing second directional light 125.First sensing element 132 and second sensing element 134 can be metal-oxide semiconductor (MOS) Image Sensor (CMOS image sensing device), charge coupled cell (charge coupled device, CCD) or other suitable sensing elements.
In the present embodiment, when on the display surface 119 of display panel 110 during no shade, the whole sensing face 133 of first sensing element 132 can both receive first directional light 123, and the whole sensing face 135 of second sensing element 134 can both receive second directional light 125.When carrying out control action on the display surface 119 of user at display panel 110, part first directional light 123 and part second directional light 125 can be subjected to stopping of shade 50 (as user's finger or control pen etc.) and can't be passed to first sensing element 132 and second sensing element 134.So, sensing module 130 can calculate the X-axis coordinate values of shade 50 on the display surface 119 of display panel 110 according to the position that does not receive first directional light 123 of first sensing element 132.In like manner, sensing module 130 can calculate the Y-axis coordinate values of shade 50 on the display surface 119 of display panel 110 according to the position that does not receive second directional light 125 of second sensing element 134.In other words, sensing module 130 can calculate the position of shade 50 according to the position that first directional light 123 and second directional light 125 are blocked, so that optical touch control display device 100 can be made corresponding reaction according to user's control action.
Because present embodiment is to adopt the mode of optics to come sensing user's control action, can avoid the shortcoming of existing known electric resistance touch-control panel and capacitance type touch-control panel.Therefore, the optical touch control display device 100 of present embodiment has better reliability degree.In addition, compared to the touch control display apparatus 100 of existing known use electric resistance touch-control panel or capacitance type touch-control panel, the optical touch control display device 100 of present embodiment is because of the lower optical sensor mode of use cost, so have the lower advantage of production cost.
Fig. 2 is the synoptic diagram of a kind of optical touch control display device of another embodiment of the present invention.Please refer to shown in Figure 2ly, the difference of the optical touch control display device 100a of present embodiment and the optical touch control display device 100 of Fig. 1 is in sensing module.The sensing module 130a of the optical touch control display device 100a of present embodiment also comprises one first reflecting element 136 and one second reflecting element 138 except comprising first sensing element 132 and second sensing element 134.First reflecting element 136 is relative with the 3rd limit 116 of display panel 110, and reflecting first directional light 123, and second reflecting element 138 is relative with the 4th limit 118 of display panel 110, to reflect second directional light 125.In addition, first sensing element 132 is disposed at by on the bang path of first directional light 123 of first reflecting element, 136 reflections, with sensing first directional light 123, and second sensing element 134 is disposed at by on the bang path of second directional light 125 of second reflecting element, 138 reflections, with sensing second directional light 125.
Particularly, first reflecting element 136 for example is one first prism, and it has one first incidence surface 136a, one first reflecting surface 136b and one first exiting surface 136c.The first incidence surface 136a is relative with the 3rd limit 116 of display panel 110, and the first exiting surface 136c is relative with first sensing element 132, and the first reflecting surface 136b is connected between the first incidence surface 136a and the first exiting surface 136c.First directional light 123 is via the first incidence surface 136a incident, first reflecting element 136, and by first reflecting surface 136b reflection and be passed to first sensing element 132 via the first exiting surface 136c.In addition, second reflecting element 138 for example is one second prism, and it has one second incidence surface 138a, one second reflecting surface 138b and one second exiting surface 138c.The second incidence surface 138a is relative with the 4th limit 118 of display panel 110, and the second exiting surface 138c is relative with second sensing element 134, and the second reflecting surface 138b is connected between the second incidence surface 138a and the second exiting surface 138c.Second directional light 125 is via the second incidence surface 138a incident, second reflecting element 138, and by second reflecting surface 138b reflection and be passed to second sensing element 132 via the second exiting surface 138c.
The optical touch control display device 100a of present embodiment to control principle identical with above-mentioned optical touch control display device 100, and its advantage is also similar, will no longer repeat at this.In addition, the present invention does not limit the ornaments angle of first reflecting element 136 and second reflecting element 138 and the angle of the first incidence surface 136a, the first reflecting surface 136b, the first exiting surface 136c, the second incidence surface 138a, the second reflecting surface 138b and the second exiting surface 138c.The persond having ordinary knowledge in the technical field of the present invention can design the multiple embodiment that meets demand according to the Snell's law (Snell ' s law) and the refractive index of first reflecting element 136 and second reflecting element 138, and it should belong to protection scope of the present invention.In addition, first reflecting element 136 and second reflecting element 138 are not defined as prism, and it also can be catoptron or other suitable reflecting elements.
In the present embodiment, in order to make first directional light 123 and second directional light 125 can in first reflecting element 136 and second reflecting element 138, produce total reflection, and vertical incidence first sensing element 132 and second sensing element 134, angle between the first reflecting surface 136b and the first incidence surface 136a is to be designed to 45 degree, and the angle between the second reflecting surface 138b and the second incidence surface 138a also is designed to 45 degree.Yet this can cause the size of first reflecting element 136 and second reflecting element 138 bigger.
In another embodiment of the present invention, can the size of first reflecting element 136 and second reflecting element 138 be dwindled by refracting element.Please refer to shown in Figure 3ly, it is the synoptic diagram of a kind of optical touch control display device of another embodiment of the present invention.Compared to the optical touch control display device 100a of Fig. 2, the sensing module 130b of the optical touch control display device 100b of present embodiment more comprises one first refracting element 142 and one second refracting element 144.First refracting element 142 is disposed between the 3rd limit 116 of first reflecting element 136 and display panel 110, and second refracting element 144 is disposed between the 4th limit 118 of second reflecting element 138 and display panel 110.
First refracting element 142 just is passed to the first reflecting surface 136b of first reflecting element 136 after can making first directional light 123 produce refraction, so can change the incident angle of first directional light, 123 incidents, the first reflecting surface 136b.So, the angle between the first reflecting surface 136b and the first incidence surface 136a can dwindle, and the first directional light 123 vertical outgoing first exiting surface 136c still.Therefore, the size of first reflecting element 136 can be dwindled.In like manner, the size of second reflecting element 138 also can be dwindled.
The first above-mentioned refracting element 142 or second refracting element 144 can be grating (opticalgrating) or are formed by a plurality of microprisms arrangements.The slit of grating (slit) length of side wide or microprism is about several nanometers (nanometer).In addition, in other embodiments, first refracting element 142 or second refracting element 144 can be a prism 152 (shown in Fig. 4 A) or comprise at least two prisms 154,156 (shown in Fig. 4 B), and wherein prism 154 is different with the refractive index of prism 156.In Fig. 4 B, the refractive index of prism 154 for example is the refractive index greater than prism 156, but in other embodiments, the also visual demand of the refractive index of prism 154 and be designed to refractive index less than prism 156.
Be noted that the visual demand of shape of prism 152,154,156 and adjusting.First directional light 123 does not limit the vertical outgoing first exiting surface 136c of need, and second directional light 125 does not limit needs to pass the straight outgoing second exiting surface 138c.In addition, shown in the optical touch control display device 100c of Fig. 5, first refracting element 142 can contact first reflecting element 136, and second refracting element 144 can contact second reflecting element 138.
Fig. 6 is the synoptic diagram of a kind of optical touch control display device of another embodiment of the present invention.Please refer to shown in Figure 6ly, the difference of the optical touch control display device 100a of the optical touch control display device 100d of present embodiment and Fig. 2 is in sensing module.The sensing module 130d of optical touch control display device 100d comprises one first reflecting element 136, one second reflecting element 138 and a sensing element 146.First reflecting element 136 is relative with the 3rd limit 116 of display panel 110, and reflecting first directional light 123, and second reflecting element 138 is relative with the 4th limit 118 of display panel 110, to reflect second directional light 125.Sensing element 146 is disposed between first reflecting element 132 and second reflecting element 134, and is positioned on the bang path of first directional light 123 and second directional light 125.Sensing element 146 has in order to one first sensing region 146a of sensing first directional light 123 and one second sensing region 146b in order to sensing second directional light 125.
The optical touch control display device 100d of present embodiment is similar to the advantage of the optical touch control display device 100a of Fig. 2, but because the optical touch control display device 100d of present embodiment only uses a sensing element 146, so can further reduce production costs.In addition, similar to the optical touch control display device 100b of Fig. 3, between the 3rd limit 116 of first reflecting element 136 and display panel 110, first refracting element can be set, between the 4th limit 118 of second reflecting element 138 and display panel 110, second refracting element can be set.
Fig. 7 is the synoptic diagram of a kind of optical touch control display device of another embodiment of the present invention.Please refer to shown in Figure 7ly, compared to the optical touch control display device 100d of Fig. 6, the sensing module 130e of the optical touch control display device 100e of present embodiment more comprises a prism 148, and it is disposed between first reflecting element 136 and second reflecting element 138.This prism 148 has in order to the one first reflecting surface 148a that first directional light 123 is reflexed to the first sensing region 146a and in order to second directional light 125 is reflexed to the one second reflecting surface 148b of the second sensing region 146b.
The optical touch control display device 100e of present embodiment is similar to the advantage of the optical touch control display device 100d of Fig. 6.In addition, similar to the optical touch control display device 100b of Fig. 3, between the 3rd limit 116 of first reflecting element 136 and display panel 110, first refracting element can be set, second refracting element between the 4th limit 118 of second reflecting element 138 and display panel 110.
In the various embodiments described above, light source module 120 can change light source module 120 ' shown in Figure 8 into.Compared to light source module 120, light source module 120 ' more comprises one the 3rd reflecting element 126 and one the 4th reflecting element 128.The 3rd reflecting element 126 is relative with first limit 112 of display panel 110, and first light source 122 is suitable for providing first directional light 123 to the 3rd reflecting elements 126, and the 3rd reflecting element 126 is suitable for reflecting first directional light 123, so that first directional light 123 is by display surface 119 tops of display panel 110.The 4th reflecting element 128 is relative with second limit 114 of display panel 110, and secondary light source 124 is suitable for providing second directional light 125 to the 4th reflecting elements 128, and the 4th reflecting element 128 is suitable for reflecting second directional light 125, so that second directional light 125 is by display surface 119 tops of display panel 110.In addition, light source module 120 as Fig. 9 " shown in; between first limit 112 of the 3rd reflecting element 126 and display panel 110, a third reflect element 127 can be set, and between second limit 114 of the 4th reflecting element 128 and display panel 110, a fourth reflect element 129 can be set.
About the detailed description of the 3rd reflecting element 126 and the 4th reflecting element 128, please refer to the first above-mentioned reflecting element 136 and the related description of second reflecting element 138.About the detailed description of third reflect element 127 and fourth reflect element 129, please refer to the first above-mentioned refracting element 142 and the related description of second refracting element 144.
Be noted that the present invention only limits light source module need provide first directional light and second directional light, do not limit for the composition member and the leaded light mode of light source module.In addition, the composition member of sensing module of the present invention and leaded light mode also are not limited to the various embodiments described above.
In sum, because optical touch control display device of the present invention is to adopt the mode of optics to come sensing user's control action, can avoid the shortcoming of existing known electric resistance touch-control panel and capacitance type touch-control panel.Therefore, optical touch control display device of the present invention has the advantage that fiduciary level is preferable and production cost is low.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, though the present invention discloses as above with preferred embodiment, yet be not in order to limit the present invention, any those skilled in the art, in not breaking away from the technical solution of the present invention scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be the content that does not break away from technical solution of the present invention, according to technical spirit of the present invention to any simple modification that above embodiment did, equivalent variations and modification all still belong in the scope of technical solution of the present invention.
Claims (12)
1. optical touch control display device is characterized in that it comprises:
One display panel has one first adjacent limit and one second limit, with respect to one the 3rd limit on this first limit and with respect to one the 4th limit on this second limit;
One light source module, be disposed at by this first limit and this second limit of this display panel, this light source module provides one first directional light and one second directional light by the display surface top of this display panel, wherein by the 3rd limit of this display panel, this second directional light passes through the 4th limit of this display panel to this first directional light via this second limit of this display panel via this first limit of this display panel; And
One sensing module is disposed at by the 3rd limit and the 4th limit of this display panel, with this first directional light of sensing and this second directional light.
2. optical touch control display device according to claim 1 is characterized in that wherein said sensing module comprises:
One first sensing element, relative with the 3rd limit of this display panel, with this first directional light of sensing; And
One second sensing element, relative with the 4th limit of this display panel, with this second directional light of sensing.
3. optical touch control display device according to claim 1 is characterized in that wherein said sensing module comprises:
One first reflecting element, relative with the 3rd limit of this display panel, to reflect this first directional light;
One second reflecting element, relative with the 4th limit of this display panel, to reflect this second directional light;
One first sensing element is disposed at by on the bang path of this first directional light of this first reflecting element reflection, with this first directional light of sensing; And
One second sensing element is disposed at by on the bang path of this second directional light of this second reflecting element reflection, with this second directional light of sensing.
4. optical touch control display device according to claim 3, it is characterized in that wherein said first reflecting element is one first prism, it has one first incidence surface, one first reflecting surface and one first exiting surface, this first incidence surface is relative with the 3rd limit of this display panel, this first exiting surface is relative with this first sensing element, this first reflecting surface is connected between this first incidence surface and this first exiting surface, and this second reflecting element is one second prism, it has one second incidence surface, one second reflecting surface and one second exiting surface, this second incidence surface is relative with the 4th limit of this display panel, this second exiting surface is relative with this second sensing element, and this second reflecting surface is connected between this second incidence surface and this second exiting surface.
5. optical touch control display device according to claim 3 is characterized in that wherein said sensing module more comprises:
One first refracting element is disposed between the 3rd limit of this first reflecting element and this display panel; And
One second refracting element, be disposed between the 4th limit of this second reflecting element and this display panel, and this first refracting element and this second refracting element comprise at least one prism respectively, wherein, this first refracting element contacts this first reflecting element, and this second refracting element contacts this second reflecting element.
6. optical touch control display device according to claim 1 is characterized in that wherein said sensing module comprises:
One first reflecting element, relative with the 3rd limit of this display panel, to reflect this first directional light;
One second reflecting element, relative with the 4th limit of this display panel, to reflect this second directional light;
One sensing element, be disposed between this first reflecting element and this second reflecting element, and be positioned on the bang path of this first directional light and this second directional light, wherein this sensing element has in order to one first sensing region of this first directional light of sensing and one second sensing region in order to this second directional light of sensing.
7. optical touch control display device according to claim 6 is characterized in that wherein said sensing module more comprises:
One first refracting element is disposed between the 3rd limit of this first reflecting element and this display panel; And
One second refracting element be disposed between the 4th limit of this second reflecting element and this display panel, and this first refracting element and this second refracting element comprises at least one prism respectively.
8. optical touch control display device according to claim 6, it is characterized in that wherein said sensing module more comprises a prism, be disposed between this first reflecting element and this second reflecting element, this prism has in order to one first reflecting surface that this first directional light is reflexed to this first sensing region and in order to this second directional light is reflexed to one second reflecting surface of this second sensing region.
9. optical touch control display device according to claim 1 is characterized in that wherein said first directional light and this second directional light are infrared light, and this first light source and this secondary light source comprise a plurality of pointolites respectively.
10. optical touch control display device according to claim 1 is characterized in that wherein said light source module comprises:
One first light source, relative with this first limit of this display panel, and this first light source is suitable for providing this first directional light; And
One secondary light source, relative with this second limit of this display panel, and this secondary light source is suitable for providing this second directional light.
11. optical touch control display device according to claim 1 is characterized in that wherein said light source module comprises:
One the 3rd reflecting element is relative with this first limit of this display panel;
One first light source provides this first directional light to the 3rd reflecting element, and the 3rd reflecting element reflects this first directional light and makes this display surface top of this first directional light by this display panel;
One the 4th reflecting element is relative with this second limit of this display panel; And
One secondary light source provides this second directional light to the 4th reflecting element, and the 4th reflecting element reflects this second directional light and makes this display surface top of this second directional light by this display panel.
12. optical touch control display device according to claim 11 is characterized in that wherein said light source module more comprises:
One third reflect element is disposed between this first limit of the 3rd reflecting element and this display panel; And
One fourth reflect element is disposed between this second limit of the 4th reflecting element and this display panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910171692.5A CN102012768B (en) | 2009-09-08 | 2009-09-08 | Optical touch display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910171692.5A CN102012768B (en) | 2009-09-08 | 2009-09-08 | Optical touch display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102012768A true CN102012768A (en) | 2011-04-13 |
| CN102012768B CN102012768B (en) | 2014-07-02 |
Family
ID=43842954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910171692.5A Expired - Fee Related CN102012768B (en) | 2009-09-08 | 2009-09-08 | Optical touch display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102012768B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103164084A (en) * | 2011-12-16 | 2013-06-19 | 原相科技股份有限公司 | Optical touch control device, display module and light source assembly of optical touch control device |
| CN103793109A (en) * | 2012-10-31 | 2014-05-14 | 乐金显示有限公司 | Touch display device and light sensor module recovery method thereof |
| US9880668B2 (en) | 2013-09-11 | 2018-01-30 | Beijing Lenovo Software Ltd. | Method for identifying input information, apparatus for identifying input information and electronic device |
| US9904413B2 (en) | 2011-12-08 | 2018-02-27 | Pixart Imaging Inc. | Optical touch device, and light source assembly and display module thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2131544A (en) * | 1982-12-07 | 1984-06-20 | Lowbar Inc | Optical position location apparatus |
| US20040263482A1 (en) * | 2001-11-02 | 2004-12-30 | Magnus Goertz | On a substrate formed or resting display arrangement |
| US20050128190A1 (en) * | 2003-12-11 | 2005-06-16 | Nokia Corporation | Method and device for detecting touch pad input |
| CN101261557A (en) * | 2008-04-30 | 2008-09-10 | 北京汇冠新技术有限公司 | Image sensing apparatus for touch screen |
| US20090073142A1 (en) * | 2007-09-19 | 2009-03-19 | Canon Kabushiki Kaisha | Touch panel |
-
2009
- 2009-09-08 CN CN200910171692.5A patent/CN102012768B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2131544A (en) * | 1982-12-07 | 1984-06-20 | Lowbar Inc | Optical position location apparatus |
| US20040263482A1 (en) * | 2001-11-02 | 2004-12-30 | Magnus Goertz | On a substrate formed or resting display arrangement |
| CN1276338C (en) * | 2001-11-02 | 2006-09-20 | 内奥诺德股份有限公司 | On a substrate formed or resting display arrangement |
| US20050128190A1 (en) * | 2003-12-11 | 2005-06-16 | Nokia Corporation | Method and device for detecting touch pad input |
| US20090073142A1 (en) * | 2007-09-19 | 2009-03-19 | Canon Kabushiki Kaisha | Touch panel |
| CN101261557A (en) * | 2008-04-30 | 2008-09-10 | 北京汇冠新技术有限公司 | Image sensing apparatus for touch screen |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9904413B2 (en) | 2011-12-08 | 2018-02-27 | Pixart Imaging Inc. | Optical touch device, and light source assembly and display module thereof |
| CN103164084A (en) * | 2011-12-16 | 2013-06-19 | 原相科技股份有限公司 | Optical touch control device, display module and light source assembly of optical touch control device |
| CN103793109A (en) * | 2012-10-31 | 2014-05-14 | 乐金显示有限公司 | Touch display device and light sensor module recovery method thereof |
| US9417736B2 (en) | 2012-10-31 | 2016-08-16 | Lg Display Co., Ltd. | Touch display device and light sensor module recovery method thereof |
| CN103793109B (en) * | 2012-10-31 | 2017-01-04 | 乐金显示有限公司 | Touch display unit and optical sensor module restoration methods thereof |
| US9977540B2 (en) | 2012-10-31 | 2018-05-22 | Lg Display Co., Ltd. | Touch display device with light sensor module |
| US9880668B2 (en) | 2013-09-11 | 2018-01-30 | Beijing Lenovo Software Ltd. | Method for identifying input information, apparatus for identifying input information and electronic device |
| CN104423564B (en) * | 2013-09-11 | 2018-03-27 | 联想(北京)有限公司 | Input information identifying method, device and electronic equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102012768B (en) | 2014-07-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105678255B (en) | A kind of optical fingerprint identification display screen and display device | |
| CN102841716B (en) | A kind of capacitance type in-cell touch panel and display device | |
| US9798061B2 (en) | Hybrid light guide plate and display device | |
| US20100006347A1 (en) | Cover lens with touch sensing function | |
| US8803847B2 (en) | Touch display device | |
| CN204087706U (en) | Frame-free displaying device | |
| US8508509B2 (en) | Optical touch display device | |
| CN102012768B (en) | Optical touch display device | |
| TWI405109B (en) | Optical touch display | |
| CN106155439A (en) | Touch screen, touch display module and electronic equipment | |
| US20110012867A1 (en) | Optical touch screen device | |
| CN203444128U (en) | Prismatic lens, backlight source and display device | |
| US8442323B2 (en) | Handwriting recognition device having an externally defined input area | |
| CN102754424A (en) | Camera module for an optical touch screen | |
| US20110169774A1 (en) | Touch module, display device having the touch module, and method for detecting a touch position of the touch module | |
| US20140333853A1 (en) | Touch panel | |
| CN103090272A (en) | Straight down type backlight module and display device provided with the same | |
| CN102236478A (en) | Optical touch display device | |
| CN201562262U (en) | Device for fixing camera in touch screen and touch screen | |
| CN102253760B (en) | Optical touch display device | |
| KR20140132065A (en) | Electronic apparatus and method for detecting user input position on display unit and machine-readable storage medium | |
| CN102967892A (en) | Reflector and optical touch device using same | |
| CN208999989U (en) | Capacitance touching control formula short focus projection screen and optical projection system | |
| CN201489501U (en) | Device for fixing camera in touch screen and touch screen | |
| KR102139510B1 (en) | Film and input device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140702 Termination date: 20170908 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |