CN102012768B - Optical touch display device - Google Patents
Optical touch display device Download PDFInfo
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- CN102012768B CN102012768B CN200910171692.5A CN200910171692A CN102012768B CN 102012768 B CN102012768 B CN 102012768B CN 200910171692 A CN200910171692 A CN 200910171692A CN 102012768 B CN102012768 B CN 102012768B
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Abstract
The invention relates to an optical touch display device which comprises a display panel, a light source module and a sensing module. The display panel is provided with a first edge, a second edge, a third edge and a fourth edge, wherein the first edge is adjacent to the second edge, the third edge is opposite to the first edge, and the fourth edge is opposite to the second edge. The light source module is configured beside the first edge and the second edge of the display panel and is suitable 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 via the first side of the display panel, and the second parallel light passes through the fourth side of the display panel via the second side of the display panel. The sensing module is configured beside the third edge and the fourth edge of the display panel to sense the first parallel light and the 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 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 mainly comprises the display panel and the contact panel that are 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 are electric resistance touch-control panel and capacitance type touch-control panel, and wherein electric resistance touch-control panel has the not high shortcoming of sensitivity, so easily damage because user's application of force is excessive.That capacitance type touch-control panel has is expensive, easily cause the shortcoming of misoperation because of the factor such as static or humidity.
As can be seen here, above-mentioned existing touch control display apparatus, in structure and use, obviously still has inconvenience and defect, and is urgently further improved.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 have no for a long time applicable design is completed by development always, and common product does not have appropriate structure to address the above problem, develop the lower and preferably touch control display apparatus of fiduciary level of a kind of cost, this is obviously the problem that the anxious wish of relevant dealer solves.Therefore how to found a kind of optical touch display apparatus of new structure, real one of the current important research and development problem that belongs to, also becoming the current industry utmost point needs improved target.
Summary of the invention
The object of the invention is to, overcome the defect that existing touch control display apparatus exists, is to make it have the lower and preferably advantage of fiduciary level of cost and a kind of optical touch display apparatus of new structure, technical matters to be solved are provided, and is very suitable for practicality.
The object of the invention to solve the technical problems realizes by the following technical solutions.The optical touch display apparatus proposing according to the present invention, it comprises a display panel, a light source module and a sensing module.Display panel has a first side, a Second Edge, one the 3rd limit and one the 4th limit, and wherein first side and Second Edge are adjacent, and the 3rd limit is relative with first side, and the 4th limit is relative with Second Edge.Light source module is disposed at by the first side and Second Edge of display panel, and light source module is suitable for providing one first directional light and one second directional light by a display surface top of display panel.The first directional light is via the first side of display panel by the 3rd limit of display panel, and the second directional light passes through the 4th limit of display panel via the Second Edge of display panel.Sensing module is disposed at by the 3rd limit and the 4th limit of display panel, comprises one first reflecting element, one second reflecting element and a sensing element.The first reflecting element is relative with the 3rd limit of display panel, to reflect the first directional light.Be parallel to the display surface of display panel by the first directional light after the first reflecting element reflection.The second reflecting element is relative with the 4th limit of display panel, to reflect the second directional light.Be parallel to the display surface of display panel by the second directional light after the second reflecting element reflection.Sensing element is disposed at by the first directional light after the first reflecting element reflection with by the bang path of the second directional light after the second reflecting element reflection, the first directional light with sensing after by the first reflecting element reflection with by the second directional light after the second reflecting element reflection.
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.The first sensing element is disposed at by the bang path of the first directional light of the first reflecting element reflection, the first directional light after being reflected by the first reflecting element with sensing, and the second sensing element is disposed at by the bang path of the second directional light of the second reflecting element reflection, the second directional light after being reflected by the second reflecting element with sensing.In addition, the first reflecting element can be one first prism, and also has one first incidence surface, one first reflecting surface and one first exiting surface.The first incidence surface is relative with the 3rd limit of display panel, and the first exiting surface is relative with the first sensing element, and the first reflecting surface is connected between the first incidence surface and the first exiting surface.The second reflecting element can be one second prism, and also has one second incidence surface, one second reflecting surface and one second exiting surface.The second incidence surface is relative with the 4th limit of display panel, and the second exiting surface is relative with the second sensing element, and the second reflecting surface is connected between the second incidence surface and the second exiting surface.In addition, sensing module can more comprise a first refractive element and one second refracting element.First refractive arrangements of components is between the 3rd limit of the first reflecting element and display panel, and the second refracting element is disposed between the 4th limit of the second reflecting element and display panel.Above-mentioned first refractive element and the second refracting element comprise respectively at least one prism.Above-mentioned first refractive element contacts the first reflecting element, and the second refracting element contacts the second reflecting element.
In one embodiment of this invention, above-mentioned sensing element is disposed between the first reflecting element and the second reflecting element.One second sensing region of the second directional light after sensing element has one first sensing region of the first directional light after being reflected by the first reflecting element in order to sensing and reflected by the second reflecting element in order to sensing.In addition, sensing module can more comprise a first refractive element and one second refracting element.First refractive arrangements of components is between the 3rd limit of the first reflecting element and display panel, and the second refracting element is disposed between the 4th limit of the second reflecting element and display panel.First refractive element and the second refracting element comprise respectively at least one prism.In addition, sensing module can more comprise the prism being disposed between the first reflecting element and the second reflecting element, and it has in order to being reflexed to one first reflecting surface of the first sensing region and one second reflecting surface that reflexes to the second sensing region in order to the second directional light after being reflected by the second reflecting element by the first directional light after the first reflecting element reflection.
In one embodiment of this invention, the first above-mentioned directional light and the second directional light are infrared light, and light source module comprises multiple pointolites.
In one embodiment of this invention, above-mentioned light source module comprises one first light source and a secondary light source.The first light source is relative with the first side of display panel, and the first light source is suitable for providing the first directional light.Secondary light source is relative with the Second Edge of display panel, and secondary light source is suitable for providing the 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 the first side of display panel, and the first light source is suitable for providing the first directional light to the three reflecting elements, and the 3rd reflecting element is suitable for reflecting the first directional light and makes the first directional light by the display surface top of display panel.The 4th reflecting element is relative with the Second Edge of display panel, and secondary light source is suitable for providing the second directional light to the four reflecting elements, and the 4th reflecting element is suitable for reflecting the second directional light and makes the second directional light by the display surface top of display panel.
In one embodiment of this invention, above-mentioned light source module more comprises a third reflect element and a fourth reflect element.Third reflect arrangements of components is between the 3rd reflecting element and the first side of display panel, and fourth reflect arrangements of components is between the 4th reflecting element and the Second Edge of display panel.
By technique scheme, optical touch display apparatus of the present invention at least has following advantages and beneficial effect:
Optical touch display apparatus of the present invention is to adopt sensing module to carry out the first directional light and the second directional light that sensor light source module provides.In the time carrying out control action on the display surface of user at display panel, part the first directional light and part the second directional light can be subject to stopping of shade (as user's finger or manipulation pen etc.) and cannot be passed to sensing module, so sensing module can calculate according to the position of part the first directional light being blocked and part the second directional light the position of shade.Because the present invention adopts the mode of optics to carry out sensing user's control action, so can avoid the shortcoming of existing known electric resistance touch-control panel and capacitance type touch-control panel.Therefore, optical touch display apparatus of the present invention has advantages of that fiduciary level is better and production cost is low.
In sum, the present invention has significant progress technically, and has obvious good effect, is really a new and innovative, progressive, practical new design.
Above-mentioned explanation is only the general introduction of technical solution of the present invention, in order to better understand technological means of the present invention, and can be implemented according to the content of instructions, and for above and other object of the present invention, feature and advantage can be become apparent, below especially exemplified by preferred embodiment, and coordinate accompanying drawing, be described in detail as follows.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of a kind of optical touch display apparatus of one embodiment of the invention.
Fig. 2 is the schematic diagram of a kind of optical touch display apparatus of another embodiment of the present invention.
Fig. 3 is the schematic diagram of a kind of optical touch display apparatus of another embodiment of the present invention.
Fig. 4 A is the schematic diagram of a kind of refracting element of one embodiment of the invention.
Fig. 4 B is the schematic diagram of the another kind of refracting element of one embodiment of the invention.
Fig. 5 is the schematic diagram of a kind of optical touch display apparatus of another embodiment of the present invention.
Fig. 6 is the schematic diagram of a kind of optical touch display apparatus of another embodiment of the present invention.
Fig. 7 is the schematic diagram of a kind of optical touch display apparatus of another embodiment of the present invention.
Fig. 8 is the schematic diagram of a kind of light source module of one embodiment of the invention.
Fig. 9 is the schematic 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 display apparatus
110: display panel 112: first side
114: 116: the three limits of Second Edge
118: the four limits 119: display surface
120,120 ', 120 ": 122: the first light sources of light source module
123: the first directional lights 124: secondary light source
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
132: the first sensing elements 133,135: sensing face
136: the first reflecting elements of 134: the second sensing elements
136a: the first incidence surface 136b: the first reflecting surface
136c: the first exiting surface 138: the second reflecting element
138a: the second incidence surface 138b: the second reflecting surface
138c: the second exiting surface 142: first refractive element
144: the second refracting elements 146: sensing element
146a: the first sensing area 146b: the second sensing area
148,152,154,156: prism 148a: the first reflecting surface
148b: the second reflecting surface
Embodiment
Technological means and effect of taking for reaching predetermined goal of the invention for further setting forth the present invention, below in conjunction with accompanying drawing and preferred embodiment, to its embodiment of optical touch display apparatus, structure, feature and effect thereof of proposing according to the present invention, be described in detail as follows.
Fig. 1 is the schematic diagram of a kind of optical touch display apparatus of one embodiment of the invention.Please refer to shown in Fig. 1, the optical touch display apparatus 100 of the present embodiment comprises a display panel 110, a light source module 120 and a sensing module 130.Display panel 110 has a first side 112, a Second Edge 114, one the 3rd limit 116 and one the 4th limit 118, and wherein first side 112 is adjacent with Second Edge 114, and the 3rd limit 116 is relative with first side 112, and the 4th limit 118 is relative with Second Edge 114.Light source module 120 is disposed at the first side 112 and Second Edge 114 sides 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 display surface 119 tops of display panel 110.Via the first side 112 of display panel 110, the 3rd limit 116, the second directional lights 125 by display panel 110 pass through the 4th limit 118 of display panel 110 to the first directional light 123 via the Second Edge 114 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 the first directional light 123 and the second directional light 125.
In above-mentioned optical touch display apparatus 100, display panel 110 can be display panels (liquid crystal display panel, LCD panel), electrophoretic display panel (electrophoresis display panel, EPD panel), plasma display (plasma display panel, or organic electric-excitation luminescent displaying panel (organic electroluminesence display panel PDP), 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.The first light source 122 is for example strip-shaped light source with secondary light source 124.The first light source 122 is relative with the first side 112 of display panel 110, and the first light source 122 is suitable for the first directional light 123 that provides above-mentioned.Secondary light source 124 is relative with the Second Edge 114 of display panel 110, and secondary light source 124 is suitable for the second directional light 125 that provides above-mentioned.
Hold above-mentionedly, the first directional light 123 and the second directional light 125 are for example infrared light.The first light source 122 can comprise respectively multiple pointolite (not shown) with secondary light source 124, and the orientation of these pointolites is to arrange along the 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.The first sensing element 132 is relative with the 3rd limit 116 of display panel 110, and with sensing the first directional light 123, and the second sensing element 132 is relative with the 4th limit 118 of display panel 110, with sensing the second directional light 125.The first sensing element 132 and the 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 without shade, the whole sensing face 133 of the first sensing element 132 can receive the first directional light 123, and the whole sensing face 135 of the second sensing element 134 can receive the second directional light 125.In the time carrying out control action on the display surface 119 of user at display panel 110, part the first directional light 123 can be subject to stopping of shade 50 (as user's finger or manipulation pen etc.) and cannot be passed to the first sensing element 132 and the second sensing element 134 with part the second directional light 125.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 the first directional light 123 of the 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 the second directional light 125 of the second sensing element 134.In other words, the position that sensing module 130 can be blocked according to the first directional light 123 and the second directional light 125 calculates the position of shade 50, so that optical touch display apparatus 100 can be made corresponding reaction according to user's control action.
Because the present embodiment is to adopt the mode of optics to carry out sensing user's control action, so can avoid the shortcoming of existing known electric resistance touch-control panel and capacitance type touch-control panel.Therefore, the optical touch display apparatus 100 of the present embodiment has preferably fiduciary level.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 display apparatus 100 of the present embodiment is because of the lower optical sensor mode of use cost, so have advantages of that production cost is lower.
Fig. 2 is the schematic diagram of a kind of optical touch display apparatus of another embodiment of the present invention.Please refer to shown in Fig. 2, the difference of the optical touch display apparatus 100a of the present embodiment and the optical touch display apparatus 100 of Fig. 1 is in sensing module.The sensing module 130a of the optical touch display apparatus 100a of the present embodiment, except comprising the first sensing element 132 and the second sensing element 134, also comprises one first reflecting element 136 and one second reflecting element 138.The first reflecting element 136 is relative with the 3rd limit 116 of display panel 110, and to reflect the first directional light 123, and the second reflecting element 138 is relative with the 4th limit 118 of display panel 110, to reflect the second directional light 125.In addition, the first sensing element 132 is disposed on the bang path of the first directional light 123 being reflected by the first reflecting element 136, with sensing the first directional light 123, and the second sensing element 134 is disposed on the bang path of the second directional light 125 being reflected by the second reflecting element 138, with sensing the second directional light 125.
Particularly, the first reflecting element 136 is for example 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 the first sensing element 132, and the first reflecting surface 136b is connected between the first incidence surface 136a and the first exiting surface 136c.The first directional light 123 is via first incidence surface 136a incident the first reflecting element 136, and by the first reflecting surface 136b reflection and be passed to the first sensing element 132 via the first exiting surface 136c.In addition, the second reflecting element 138 is for example 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 the second sensing element 134, and the second reflecting surface 138b is connected between the second incidence surface 138a and the second exiting surface 138c.The second directional light 125 is via second incidence surface 138a incident the second reflecting element 138, and by the second reflecting surface 138b reflection and be passed to the second sensing element 132 via the second exiting surface 138c.
The manipulation principle of the optical touch display apparatus 100a of the present embodiment is identical with above-mentioned optical touch display apparatus 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 the first reflecting element 136 and the 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.Persond having ordinary knowledge in the technical field of the present invention can design the multiple embodiment that meets demand according to Snell's law (Snell ' s law) and the refractive index of the first reflecting element 136 and the second reflecting element 138, and it should belong to protection scope of the present invention.In addition, the first reflecting element 136 and the 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 the first directional light 123 and the second directional light 125 can be in the first reflecting element 136 and the interior generation total reflection of the second reflecting element 138, and vertical incidence the first sensing element 132 and the 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 angle between the second reflecting surface 138b and the second incidence surface 138a is also designed to 45 degree.But this can cause the size of the first reflecting element 136 and the second reflecting element 138 larger.
In another embodiment of the present invention, can the size of the first reflecting element 136 and the second reflecting element 138 be dwindled by refracting element.Please refer to shown in Fig. 3 the schematic diagram of its a kind of optical touch display apparatus that is another embodiment of the present invention.Compared to the optical touch display apparatus 100a of Fig. 2, the sensing module 130b of the optical touch display apparatus 100b of the present embodiment more comprises a first refractive element 142 and one second refracting element 144.First refractive element 142 is disposed between the 3rd limit 116 of the first reflecting element 136 and display panel 110, and the second refracting element 144 is disposed between the 4th limit 118 of the second reflecting element 138 and display panel 110.
First refractive element 142 is just passed to the first reflecting surface 136b of the first reflecting element 136 after can making the first directional light 123 produce refraction, so can change the incident angle of first directional light 123 incident the first reflecting surface 136b.So, the angle between the first reflecting surface 136b and the first incidence surface 136a can dwindle, and still vertical outgoing the first exiting surface 136c of the first directional light 123.Therefore, the size of the first reflecting element 136 can be dwindled.In like manner, the size of the second reflecting element 138 also can be dwindled.
Above-mentioned first refractive element 142 or the second refracting element 144 can be grating (optical grating) or are arranged and formed by multiple microprisms.Slit (slit) length of side wide or microprism of grating is about several nanometers (nanometer).In addition, in other embodiments, first refractive element 142 or the second refracting element 144 can be a prism 152 (as shown in Figure 4 A) or comprise at least two prisms 154,156 (as shown in Figure 4 B), and wherein prism 154 is different from the refractive index of prism 156.In Fig. 4 B, the refractive index of prism 154 is for example the refractive index that is greater than prism 156, but in other embodiments, also visual demand and be designed to be less than the refractive index of prism 156 of the refractive index of prism 154.
Should be noted the visual demand of shape of prism 152,154,156 and adjusting.The first directional light 123 does not limit vertical outgoing the first exiting surface 136c of need, and the second directional light 125 does not limit needs to pass straight outgoing the second exiting surface 138c.In addition, as shown in the optical touch display apparatus 100c of Fig. 5, first refractive element 142 can contact the first reflecting element 136, and the second refracting element 144 can contact the second reflecting element 138.
Fig. 6 is the schematic diagram of a kind of optical touch display apparatus of another embodiment of the present invention.Please refer to shown in Fig. 6, the difference of the optical touch display apparatus 100d of the present embodiment and the optical touch display apparatus 100a of Fig. 2 is in sensing module.The sensing module 130d of optical touch display apparatus 100d comprises one first reflecting element 136, one second reflecting element 138 and a sensing element 146.The first reflecting element 136 is relative with the 3rd limit 116 of display panel 110, and to reflect the first directional light 123, and the second reflecting element 138 is relative with the 4th limit 118 of display panel 110, to reflect the second directional light 125.Sensing element 146 is disposed between the first reflecting element 132 and the second reflecting element 134, and is positioned on the bang path of the first directional light 123 and the second directional light 125.Sensing element 146 have in order to one first sensing region 146a of sensing the first directional light 123 with in order to one second sensing region 146b of sensing the second directional light 125.
The optical touch display apparatus 100d of the present embodiment is similar to the advantage of the optical touch display apparatus 100a of Fig. 2, but because the optical touch display apparatus 100d of the present embodiment only uses a sensing element 146, so can further reduce production costs.In addition, similar to the optical touch display apparatus 100b of Fig. 3, between the 3rd limit 116 of the first reflecting element 136 and display panel 110, first refractive element can be set, between the 4th limit 118 of the second reflecting element 138 and display panel 110, the second refracting element can be set.
Fig. 7 is the schematic diagram of a kind of optical touch display apparatus of another embodiment of the present invention.Please refer to shown in Fig. 7, compared to the optical touch display apparatus 100d of Fig. 6, the sensing module 130e of the optical touch display apparatus 100e of the present embodiment more comprises a prism 148, and it is disposed between the first reflecting element 136 and the second reflecting element 138.This prism 148 have in order to the first directional light 123 is reflexed to the one first reflecting surface 148a of the first sensing region 146a with in order to the second directional light 125 is reflexed to the one second reflecting surface 148b of the second sensing region 146b.
The optical touch display apparatus 100e of the present embodiment is similar to the advantage of the optical touch display apparatus 100d of Fig. 6.In addition, similar to the optical touch display apparatus 100b of Fig. 3, between the 3rd limit 116 of the first reflecting element 136 and display panel 110, first refractive element can be set, the second refracting element between the 4th limit 118 of the second reflecting element 138 and display panel 110.
In the various embodiments described above, light source module 120 can change the light source module 120 ' shown in Fig. 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 the first side 112 of display panel 110, and the first light source 122 is suitable for providing the first directional light 123 to the 3rd reflecting element 126, and the 3rd reflecting element 126 is suitable for reflecting the first directional light 123, so that the first directional light 123 is by display surface 119 tops of display panel 110.The 4th reflecting element 128 is relative with the Second Edge 114 of display panel 110, and secondary light source 124 is suitable for providing the second directional light 125 to the 4th reflecting element 128, and the 4th reflecting element 128 is suitable for reflecting the second directional light 125, so that the second directional light 125 is by display surface 119 tops of display panel 110.In addition, as the light source module 120 of Fig. 9 " as shown in; between the 3rd reflecting element 126 and the first side 112 of display panel 110, a third reflect element 127 can be set, and between the 4th reflecting element 128 and the Second Edge 114 of 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 the second reflecting element 138.About third reflect element 127 and the detailed description of fourth reflect element 129, please refer to the related description of above-mentioned first refractive element 142 and the second refracting element 144.
Should be noted, the present invention only limits light source module need provide the first directional light and the second directional light, does not limit for 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 are also not limited to the various embodiments described above.
In sum, because optical touch display apparatus of the present invention is to adopt the mode of optics to carry out sensing user's control action, so can avoid the shortcoming of existing known electric resistance touch-control panel and capacitance type touch-control panel.Therefore, optical touch display apparatus of the present invention has advantages of that fiduciary level is better and production cost is low.
The above, it is only preferred embodiment of the present invention, not the present invention is done to any pro forma restriction, although the present invention discloses as above with preferred embodiment, but not in order to limit the present invention, any those skilled in the art, do not departing within the scope of technical solution of the present invention, when can utilizing the technology contents of above-mentioned announcement to make a little change or being modified to the equivalent embodiment of equivalent variations, in every case be the content that does not depart from technical solution of the present invention, any simple modification of above embodiment being done according to technical spirit of the present invention, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Claims (8)
1. an optical touch display apparatus, is characterized in that it comprises:
One display panel, has an adjacent first side and a Second Edge, with respect to one the 3rd limit of this first side and with respect to one the 4th limit of this Second Edge;
One light source module, be disposed at by this first side and this Second Edge of this display panel, this light source module provides by one first directional light and one second directional light of a display surface top of this display panel, wherein this first directional light is via this first side of this display panel by the 3rd limit of this display panel, and this second directional light passes through the 4th limit of this display panel via this Second Edge of this display panel; And
One sensing module, is disposed at by the 3rd limit and the 4th limit of this display panel, and this sensing module comprises:
One first reflecting element, this first reflecting element is relative with the 3rd limit of this display panel, to reflect this first directional light, is parallel to this display surface of this display panel by this first directional light after this first reflecting element reflection;
One second reflecting element, this second reflecting element is relative with the 4th limit of this display panel, to reflect this second directional light, is parallel to this display surface of this display panel by this second directional light after this second reflecting element reflection;
One sensing element, be disposed at by this first directional light after this first reflecting element reflection with by the bang path of this second directional light after this second reflecting element reflection, this first directional light with sensing after by the reflection of this first reflecting element with by this second directional light after this second reflecting element reflection, this sensing element comprises:
One first sensing element, is disposed at by the bang path of this first directional light of this first reflecting element reflection, this first directional light after being reflected by this first reflecting element with sensing; And
One second sensing element, is disposed at by the bang path of this second directional light of this second reflecting element reflection, this second directional light after being reflected by this second reflecting element with sensing;
One first refractive 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 refractive element and this second refracting element comprise respectively at least one prism, wherein, this first refractive element contacts this first reflecting element, and this second refracting element contacts this second reflecting element.
2. optical touch display apparatus according to claim 1, it is characterized in that the first wherein said 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, this second reflecting surface is connected between this second incidence surface and this second exiting surface.
3. optical touch display apparatus according to claim 1, is characterized in that the first wherein said directional light and this second directional light are infrared light, and this light source module comprises multiple pointolites.
4. optical touch display apparatus according to claim 1, is characterized in that wherein said light source module comprises:
One first light source, relative with this first side 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 Edge of this display panel, and this secondary light source is suitable for providing this second directional light.
5. optical touch display apparatus according to claim 1, is characterized in that wherein said light source module comprises:
One the 3rd reflecting element is relative with this first side 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 first directional light by this display surface top of this display panel;
One the 4th reflecting element is relative with this Second Edge 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 second directional light by this display surface top of this display panel.
6. optical touch display apparatus according to claim 5, is characterized in that wherein said light source module more comprises:
One third reflect element, is disposed between the 3rd reflecting element and this first side of this display panel; And
One fourth reflect element, is disposed between the 4th reflecting element and this Second Edge of this display panel.
7. an optical touch display apparatus, is characterized in that it comprises:
One display panel, has an adjacent first side and a Second Edge, with respect to one the 3rd limit of this first side and with respect to one the 4th limit of this Second Edge;
One light source module, be disposed at by this first side and this Second Edge of this display panel, this light source module provides by one first directional light and one second directional light of a display surface top of this display panel, wherein this first directional light is via this first side of this display panel by the 3rd limit of this display panel, and this second directional light passes through the 4th limit of this display panel via this Second Edge of this display panel; And
One sensing module, is disposed at by the 3rd limit and the 4th limit of this display panel, and this sensing module comprises:
One first reflecting element, this first reflecting element is relative with the 3rd limit of this display panel, to reflect this first directional light, is parallel to this display surface of this display panel by this first directional light after this first reflecting element reflection;
One second reflecting element, this second reflecting element is relative with the 4th limit of this display panel, to reflect this second directional light, is parallel to this display surface of this display panel by this second directional light after this second reflecting element reflection;
One sensing element, be disposed at by this first directional light after this first reflecting element reflection with by the bang path of this second directional light after this second reflecting element reflection, this first directional light with sensing after by the reflection of this first reflecting element with by this second directional light after this second reflecting element reflection, this sensing element is to be disposed between this first reflecting element and this second reflecting element, wherein this sensing element has one second sensing region of one first sensing region of this first directional light after by the reflection of this first reflecting element in order to sensing and this second directional light after by this second reflecting element reflection in order to sensing,
One first refractive 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 refractive element and this second refracting element comprises respectively at least one prism.
8. optical touch display apparatus according to claim 7, 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 being reflexed to one first reflecting surface of this first sensing region and one second reflecting surface that reflexes to this second sensing region in order to this second directional light after being reflected by this second reflecting element by this first directional light after this first reflecting element reflection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910171692.5A CN102012768B (en) | 2009-09-08 | 2009-09-08 | Optical touch display device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910171692.5A CN102012768B (en) | 2009-09-08 | 2009-09-08 | Optical touch display device |
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| CN102012768A CN102012768A (en) | 2011-04-13 |
| CN102012768B true CN102012768B (en) | 2014-07-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200910171692.5A Expired - Fee Related CN102012768B (en) | 2009-09-08 | 2009-09-08 | Optical touch display device |
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Cited By (1)
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| TWI885489B (en) * | 2023-09-18 | 2025-06-01 | 達方電子股份有限公司 | Electronic apparatus with peripheral segmented illumination |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI526900B (en) | 2011-12-08 | 2016-03-21 | 原相科技股份有限公司 | Optical touch apparatus, and light source unit and display module for the same |
| CN103164084B (en) * | 2011-12-16 | 2016-08-03 | 原相科技股份有限公司 | Optical touch device and its display module and light source assembly |
| KR101407311B1 (en) | 2012-10-31 | 2014-06-13 | 엘지디스플레이 주식회사 | Touch display panel and method for recovering ligt sensor module of the same |
| CN104423564B (en) | 2013-09-11 | 2018-03-27 | 联想(北京)有限公司 | Input information identifying method, device and electronic equipment |
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| CN1276338C (en) * | 2001-11-02 | 2006-09-20 | 内奥诺德股份有限公司 | Display device formed or resting on a substrate |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2131544B (en) * | 1982-12-07 | 1986-03-05 | Lowbar Inc | Optical postition location apparatus |
| US7265748B2 (en) * | 2003-12-11 | 2007-09-04 | Nokia Corporation | Method and device for detecting touch pad input |
| US8395588B2 (en) * | 2007-09-19 | 2013-03-12 | Canon Kabushiki Kaisha | Touch panel |
| CN101261557B (en) * | 2008-04-30 | 2011-09-14 | 北京汇冠新技术股份有限公司 | Image sensing apparatus for touch screen |
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| CN1276338C (en) * | 2001-11-02 | 2006-09-20 | 内奥诺德股份有限公司 | Display device formed or resting on a substrate |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| TWI885489B (en) * | 2023-09-18 | 2025-06-01 | 達方電子股份有限公司 | Electronic apparatus with peripheral segmented illumination |
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| CN102012768A (en) | 2011-04-13 |
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