CN216388051U - Infrared touch display device - Google Patents
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- CN216388051U CN216388051U CN202122842565.2U CN202122842565U CN216388051U CN 216388051 U CN216388051 U CN 216388051U CN 202122842565 U CN202122842565 U CN 202122842565U CN 216388051 U CN216388051 U CN 216388051U
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Abstract
The utility model provides an infrared touch display device, which comprises touch control glass; the frame is provided with an accommodating part, and the opening of the accommodating part faces the inner side of the frame; the circuit board is positioned in the accommodating part and is provided with an infrared assembly; the infrared assembly comprises an infrared emitting piece and an infrared receiving piece; a reflection sheet attached to an inner wall surface of the accommodation portion; the reflection sheet comprises a first reflection sheet and a second reflection sheet, and the first reflection sheet and the second reflection sheet are respectively arranged corresponding to the infrared emitting piece and the infrared receiving piece; the infrared emitting member is used for emitting an infrared beam toward a front side of the display device, the first reflection sheet is used for reflecting the received infrared beam toward the second reflection sheet, and the second reflection sheet is used for reflecting the infrared beam from the first reflection sheet to the infrared receiving member. The infrared touch display device provided by the utility model has smaller touch height.
Description
Technical Field
The utility model relates to the technical field of display, in particular to infrared touch display equipment.
Background
In an interactive touch display device (such as an electronic whiteboard), an infrared touch manner is widely used due to its advantages of reliable technology, large size, splicing, low cost, and the like.
The infrared touch display device comprises a frame, touch control glass, a circuit board and a light filtering piece. The frame is used for fixing the touch glass, the circuit board is provided with an infrared emitting piece and an infrared receiving piece, the infrared emitting piece is used for emitting infrared beams, and the infrared receiving piece is used for receiving the infrared beams; the infrared emitting piece and the infrared receiving piece are respectively arranged on two opposite sides of the frame. When the user carries out touch operation on touch glass, the user shelters from the infrared ray light beam that infrared transmitter sent for infrared receiver can't receive the infrared ray light beam that infrared transmitter sent, and this infrared touch display device can carry out signal location to input signal according to the change of signal.
However, in the prior art, the touch height of the infrared touch display device is large, which easily causes the mistaken shielding of the infrared light beam, and the touch precision is poor.
SUMMERY OF THE UTILITY MODEL
In view of the foregoing problems, embodiments of the present invention provide an infrared touch display device, which has a small touch height and a high touch precision.
In order to achieve the above object, the embodiments of the present invention provide the following technical solutions:
the embodiment of the utility model provides an infrared touch display device, which comprises:
touch control glass;
the frame surrounds the outer side of the periphery of the touch control glass, the frame is provided with an accommodating part, and an opening of the accommodating part faces the inner side of the frame;
the circuit board is positioned in the accommodating part, an infrared assembly is arranged on the circuit board, and the infrared assembly is positioned on the outer side of the periphery of the touch glass; the infrared assembly comprises an infrared emitting piece and an infrared receiving piece, and the infrared emitting piece and the infrared receiving piece are respectively arranged on two opposite sides of the frame;
the reflecting sheet is attached to the inner wall surface of the accommodating part and is arranged on the front side of the infrared assembly; the reflection sheet comprises a first reflection sheet and a second reflection sheet, and the first reflection sheet and the second reflection sheet are respectively arranged corresponding to the infrared emitting piece and the infrared receiving piece;
the infrared emitting piece is used for emitting infrared light beams towards the front side of the display device, the first reflection sheet is used for reflecting the received infrared light beams towards the second reflection sheet, and the second reflection sheet is used for reflecting the infrared light beams from the first reflection sheet to the infrared receiving piece.
Like this, can reduce the interval between infrared ray beam and the touch-control glass after the reflection of first reflector plate through adjusting the luminous angle that infrared subassembly sent infrared ray beam and the inclination of reflector plate, reduce the touch height promptly, avoid the mistake to shelter from infrared ray beam, improve touch-control precision. And the reflector plate has the advantages of simple structure, low manufacturing cost and easy installation.
In some embodiments, the first reflective sheet and the second reflective sheet are oppositely arranged, and an included angle between at least one of the first reflective sheet and the second reflective sheet and the touch glass is 45 degrees, so that the assembly is easy.
In some embodiments, the reflector plate is a metal piece, a glass piece or a silica gel piece, and the manufacturing cost is low.
In some embodiments, a first adhesive member is provided between the reflection sheet and the inner wall surface of the accommodating portion, and the fixing stability of the reflection sheet is high.
In some embodiments, the light emitting end of the infrared emitting element is located between the front side surface and the back side surface of the touch glass, and the light entering end of the infrared receiving element is located between the front side surface and the back side surface of the touch glass, so that the phenomenon that the thickness of the infrared touch display device is increased due to a circuit board can be avoided.
In some embodiments, the touch glass is recessed from the edge to the middle part towards the rear side. Therefore, the condition that the infrared light beams are shielded due to the fact that the touch glass protrudes and deforms towards the front side can be avoided.
In some embodiments, the infrared touch display device further includes a filter, a front end of the filter is connected to the opening of the accommodating portion, and a rear end of the filter is connected to the touch glass. Therefore, stray light on the front side of the touch glass can be filtered.
In some embodiments, the rear end of the optical filter is inclined towards the side far away from the circuit board so as to improve the optical filtering effect of the optical filter.
In some embodiments, the bezel comprises: a body on which the receiving portion is provided; a support member coupled to the body; the front end of the light filtering piece is connected with the body, and the rear end of the light filtering piece is connected with the supporting piece, so that the infrared touch display equipment is easy to assemble.
In some embodiments, second bonding members are disposed between the filter member and the touch glass and between the touch glass and the support member, and the connection between the filter member and the touch glass and between the touch glass and the support member is stable.
In addition to the technical problems solved by the embodiments of the present invention, the technical features constituting the technical solutions, and the advantages brought by the technical features of the technical solutions described above, other technical problems solved by the infrared touch display device provided by the embodiments of the present invention, other technical features included in the technical solutions, and advantages brought by the technical features will be further described in detail in the detailed description.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an infrared touch display device according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view of the infrared touch display device of FIG. 1;
FIG. 3 is a broken-away schematic view of FIG. 2;
fig. 4 is a schematic structural view of a portion a in fig. 2 and 3.
Reference numerals:
100: an infrared touch display device;
110: a frame;
111: a receptacle portion;
112: a body;
113: a support member;
120: a circuit board;
121: an infrared emitting member;
122: an infrared receiving member;
130: a reflective sheet;
131: a first reflective sheet;
132: a second reflective sheet;
140: a light filtering member;
150: touch control glass;
h: the height of the touch.
Detailed Description
In order to make the aforementioned objects, features and advantages of the embodiments of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. It is to be understood that the described embodiments are merely a few embodiments of the utility model, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the related art, the frame has a receiving portion, and the infrared emitting element and the infrared receiving element are generally disposed opposite to each other at an opening of the receiving portion, so that the infrared light beam emitted from the infrared emitting element can be directly emitted to the front side of the touch glass through the opening of the receiving portion, and at the same time, the infrared receiving element can directly receive the infrared light beam. Considering the size limitation of the infrared component, the touch height of the infrared touch display device is larger, the infrared light beam is easy to be shielded by mistake, and the touch precision is poorer
In view of this, an embodiment of the present disclosure provides an infrared touch display device, wherein the infrared assembly is disposed at an outer side of the touch glass in parallel, an infrared light beam emitted by the infrared emitter is reflected by the first reflection sheet and emitted toward the second reflection sheet, and the infrared receiver can receive the infrared light beam reflected by the second reflection sheet. The infrared light beam reflected by the first reflector is positioned on the front side of the touch glass, and the reflector is arranged, so that the distance between the infrared light beam and the touch glass can be reduced, namely, the touch height is reduced, and the touch precision is improved.
Fig. 1 is a schematic structural diagram of an infrared touch display device according to an embodiment of the present invention. Fig. 2 is a cross-sectional view of the infrared touch display device of fig. 1. Fig. 3 is a broken-away schematic view of fig. 2. Fig. 4 is a schematic structural view of a portion a in fig. 1 and 2.
Referring to fig. 1 to 4, the present embodiment provides an infrared touch display device 100, and the infrared touch display device 100 may be an industrial personal computer, a self-service inquiry machine, a cash dispenser, a song ordering machine, a self-service retail machine, an electronic whiteboard, and the like.
The infrared touch display device 100 includes a touch glass 150 and a display screen for displaying image information, and the display screen is disposed at a rear side of the touch glass 150 to form a protection for the display screen through the touch glass 150.
The infrared touch display device 100 further includes a frame 110, and the frame 110 is disposed around the outer sides of the touch glass 150 and the display screen.
The frame 110 may be a ring frame structure, for example, the frame 110 may be a square frame, a circular frame, or the like. The area surrounded by the frame 110 is a touch area, and the frame 110 is connected to the edge of the touch glass 150 to fix the touch glass 150.
Taking the rectangular frame 110 as an example, the frame 110 includes four edge strips, and the four edge strips are respectively disposed on the top side, the bottom side, the left side, and the right side of the touch glass 150. Any two adjacent edge strips are detachably connected.
Here, the left and right sides of the touch glass 150 refer to the left and right sides of the user when the user performs a touch operation toward the infrared touch display device 100. Correspondingly, the side of the touch glass 150 facing the user is the front side, and the side of the touch glass 150 facing away from the user is the back side.
In some embodiments, the frame 110 is provided with a receiving portion 111, and an opening of the receiving portion 111 faces an inner side of the frame 110. Thus, the openings of the receiving portions 111 on the day side face the ground side, the receiving portions 111 on the ground side face the day side, the left receiving portions 111 face the right side, and the right receiving portions 111 face the left side.
The infrared touch display device 100 further includes a circuit board 120, the circuit board 120 is located in the accommodating portion 111, an infrared component juxtaposed to the touch glass 150 is disposed on the circuit board 120, and the infrared component is located on the outer side of the touch glass 150 in the circumferential direction; the infrared assembly includes an infrared emitting element 121 and an infrared receiving element 122, and the infrared emitting element 121 and the infrared receiving element 122 are respectively disposed at opposite sides of the bezel 110. Illustratively, the left and the right side edge strips of the frame 110 are each provided with an infrared emitting element 121, and the right and the ground side edge strips of the frame 110 are each provided with an infrared receiving element 122.
That is, the openings of the receiving portions 111 of the two opposite edge strips are opposite to each other, so that the infrared ray beam emitted from the infrared emitting element 121 can be emitted through the opening of the receiving portion 111 where the infrared emitting element is located, and spread into the receiving portion 111 opposite to the infrared emitting element, so that the infrared ray beam is received by the opposite infrared receiving element 122.
In some embodiments, the edge strip of the frame 110 on the left side may also be provided with the infrared emitting element 121 and the infrared receiving element 122, and the edge strip of the frame 110 on the right side is provided with the infrared receiving element 122 and the infrared emitting element 121 at corresponding positions.
The circuit boards 120 may be two, one of the circuit boards 120 is used to connect to each of the ir emitting elements 121, and the other circuit board 120 is used to connect to each of the ir receiving elements 122. The circuit board 120 may be connected to any one of the side bars.
Wherein, the infrared emitting element 121 and the infrared receiving element 122 are respectively disposed at two opposite sides of the frame 110. Thus, the center lines of the infrared beams emitted from the respective infrared emitting members 121 may form an infrared matrix crossing in length and width.
The cross-sectional shape of the accommodating portion 111 is related to the arrangement position, direction, and the like of the circuit board 120. An included angle may be formed between the circuit board 120 and the touch glass 150. For example, referring to fig. 3 and fig. 4, the circuit board 120 in the present embodiment is perpendicular to the touch glass 150, so that the width of the frame 110 of the infrared touch display device 100 is smaller, which is beneficial to increasing the screen occupation ratio of the infrared touch display device 100.
The infrared touch display device 100 further includes a filter 140 located at an opening of the accommodating portion 111, wherein a front end of the filter 140 is connected to the opening of the accommodating portion 111, and a rear end of the filter 140 is connected to the touch glass 150. The material of the optical filter 140 may be Polycarbonate (PC) for filtering other optical signals than infrared rays, that is, only infrared rays may pass through the optical filter 140 to prevent other optical signals from affecting the infrared emitting element 121 and the infrared receiving element 122.
That is, the infrared ray beam emitted from the infrared emitting element 121 passes through the filter 140 at the position thereof and propagates to the front side of the touch glass 150, and the infrared receiving element 122 can receive the infrared ray beam filtered by the filter 140 at the position thereof.
In this way, when the user does not perform the touch operation, the infrared light beam emitted from the infrared emitting element 121 is not blocked, the infrared receiving element 122 can receive the infrared light beam emitted from the infrared emitting element 121, and the circuit board 120 determines that the user does not perform the touch operation according to the infrared light beam received from the infrared receiving element 122.
When the user performs a touch operation, for example, touches the touch glass 150, the infrared light beam emitted from the infrared emitting element 121 is blocked, and the infrared receiving element 122 cannot receive the infrared light beam emitted from the infrared emitting element 121. At this time, since the infrared receiving part 122 does not receive the infrared ray beam emitted from the infrared emitting part 121, the circuit board 120 determines that the user has performed the touch operation.
In some embodiments, the infrared touch display device 100 further includes a reflection sheet 130, the reflection sheet 130 is attached on an inner wall surface of the accommodating portion 111, the reflection sheet 130 includes a first reflection sheet 131 and a second reflection sheet 132, and the first reflection sheet 131 and the second reflection sheet 132 are disposed corresponding to the infrared emitting element 121 and the infrared receiving element 122, respectively. For example, when the infrared emitters 121 are disposed on both the top and bottom sides of the bezel 110, the first reflection sheet 131 may be a unitary structure and fixed inside the accommodating portion 111.
In some embodiments, the reflective sheet 130 is located in the accommodating portion 111 and disposed at the front side of the infrared assembly; the infrared emitting part 121 serves to emit an infrared light beam toward the front side of the infrared touch display device 100, the first reflection sheet 131 serves to reflect the received infrared light beam toward the second reflection sheet 132, and the second reflection sheet 132 serves to reflect the infrared light beam from the first reflection sheet 131 to the infrared receiving part 122.
Thus, when the infrared assembly works, the infrared emitting device 121 firstly emits an infrared beam toward the front side of the touch glass 150 until the infrared beam propagates to the position of the first reflection sheet 131, the first reflection sheet 131 reflects the infrared beam emitted by the infrared emitting device 121, so that the infrared beam propagates to the front side of the touch glass 150 and propagates toward the second reflection sheet 132, at this time, the infrared beam reflected by the first reflection sheet 131 is parallel to the touch glass 150, and a distance between a center line of the infrared beam reflected by the first reflection sheet 131 and the touch glass 150 is a touch height H. When the infrared light beam reflected by the first reflection sheet 131 propagates to the position of the second reflection sheet 132, the second reflection sheet 132 reflects the infrared light beam to propagate towards the infrared receiving element 122, and the infrared receiving element 122 is used for receiving the infrared light beam reflected by the second reflection sheet 132.
Like this, through the inclination of adjusting the light-emitting direction of infrared transmitter 121, the income light direction of infrared receiver 122 and reflector plate 130, can adjust the position of the infrared beam after first reflector plate 131 reflects, make its orientation be close to touch glass 150 one side and remove, also reduce touch height H promptly, avoid appearing infrared beam's the mistake and shelter from the condition, improve touch accuracy.
In some embodiments, the infrared light beam can be tangent to the touch glass 150, i.e., a touch height of the infrared touch display device 100 of approximately "zero" can be achieved, thereby avoiding a false occlusion condition of the infrared light beam.
The light emitting direction of the infrared emitting member 121 and the propagation direction of the infrared light beam reflected by the second reflective sheet 132 can be set as required. In some embodiments, the first reflective sheet 131 and the second reflective sheet 132 are disposed opposite to each other, and an included angle between at least one of the first reflective sheet 131 and the second reflective sheet 132 and the touch glass 150 is 45 °.
Specifically, the included angle between the first reflective sheet 131 and the touch glass 150 is 45 °, that is, the light emitting direction of the infrared emitter 121 is perpendicular to the touch panel, and the infrared emitter 121 is easy to assemble. At this time, the incident light direction of the infrared receiving element 122 may be set according to the inclination angle of the inner wall surface of the accommodating portion 111, that is, the requirement for the molding accuracy of the inner wall surface at the position of the accommodating portion 111 corresponding to the infrared receiving element 122 is low. For example, the incident light direction of the infrared receiving element 122 may be an acute angle or an obtuse angle with the touch glass 150.
In some embodiments, the included angle between the second reflection sheet 132 and the touch glass 150 is 45 °, that is, the incident light direction of the infrared receiving element 122 is perpendicular to the touch glass 150, and the infrared receiving element 122 is easy to assemble. At this time, the light emitting direction of the infrared emitter 121 may be set according to the inclination angle of the inner wall surface of the accommodating portion 111, that is, the requirement for the molding accuracy of the inner wall surface at the position of the accommodating portion 111 corresponding to the infrared emitter 121 is low. For example, the angle between the light emitting direction of the infrared emitter 121 and the touch glass 150 may be an acute angle or an obtuse angle, and the infrared emitter 121 emits the infrared light beam toward the front side of the infrared touch display device 100 in an inclined manner.
It can be understood that, when the included angle between the first reflective sheet 131 and the touch glass 150 is 45 °, the included angle between the second reflective sheet 132 and the touch glass 150 may also be 45 °. Like this, the light-emitting direction and the touch panel of infrared transmitter 121 set up perpendicularly, and the incident light direction and the perpendicular setting of touch glass 150 of infrared receiver 122 can avoid setting up because of the light-emitting direction of infrared transmitter 121 and the incident light direction slope of infrared receiver 122, lead to the width grow of frame 110.
When the infrared component works, the infrared emitting component 121 firstly emits an infrared beam towards the front side along the vertical direction of the touch glass 150 until the infrared beam propagates to the position of the first reflector 131, the first reflector 131 reflects the infrared beam emitted by the infrared emitting component 121, so that the infrared beam propagates to the front side of the touch glass 150 and propagates towards the second reflector 132, at this time, the center line of the infrared beam reflected by the first reflector 131 is parallel to the touch glass 150, and the distance between the infrared beam reflected by the first reflector 131 and the touch glass 150 is the touch height H. When the infrared light beam reflected by the first reflection sheet 131 propagates to the position of the second reflection sheet 132, the second reflection sheet 132 reflects the infrared light beam so that the infrared light beam propagates toward the infrared receiving element 122 along the vertical direction of the touch glass 150, and the infrared receiving element 122 is used for receiving the infrared light beam reflected by the second reflection sheet 132.
The infrared device is disposed in parallel with the touch glass 150 and is disposed outside the touch glass 150 in the circumferential direction. That is, the infrared device is not disposed on the rear side of the touch glass 150, the light emitting end of the infrared emitting element 121 is located between the front side and the rear side of the touch glass 150, and the light entering end of the infrared receiving element 122 is located between the front side and the rear side of the touch glass 150. Therefore, the thickness of the infrared touch display device 100 can be prevented from being increased by the circuit board 120, and the development trend of ultra-thinning of the infrared touch display device is met.
It can be understood that the reflective sheet 130 has a sheet structure, and reflects the infrared light beam through the outer wall of the reflective sheet 130, and the reflective sheet 130 has a simpler structure and a lower manufacturing cost. The reflector plate can be made of different materials, for example, the reflector plate is made of metal pieces, glass pieces or silica gel pieces, so that the reflector plate is low in manufacturing cost and easy to install.
In some embodiments, a first adhesive member (e.g., a double-sided tape) is disposed between the reflection sheet 130 and the inner wall surface of the accommodating portion 111 to fix the reflection sheet 130 on the inner wall surface of the accommodating portion 111, so that the fixing stability of the reflection sheet 130 is high. Moreover, the reflective sheet 130 can be smoothly attached to the inner wall surface of the accommodating portion 111, so as to prevent the reflective sheet 130 from being wrinkled and affecting the reflective effect of the infrared beam.
Considering that the touch glass 150 may be deformed during assembly or use, for example, a convex deformation toward the front side of the infrared touch display device 100, which may block the infrared light beam, in some embodiments, the touch glass 150 is recessed from the edge toward the middle toward the rear side. Thus, even if the touch glass 150 is convexly deformed toward the front side, by making the touch glass 150 concavely arranged, a part of the convex deformation amount can be offset, thereby avoiding the touch glass 150 from mistakenly shielding the infrared beam and improving the touch precision.
At this time, the vertical direction of the touch glass 150 is the thickness direction of the infrared touch display device 100.
In some embodiments, the rear end of the filter 140 is disposed obliquely toward a side away from the circuit board 120 to improve the filtering effect of the filter 140.
In some embodiments, a side of the optical filter 140 facing the circuit board 120 may also be a concave arc surface, and a side of the optical filter 140 facing away from the circuit board 120 is a plane, and the cross-sectional shape of the optical filter 140 is not limited in this embodiment.
The bezel 110 may be a unitary structure. In some embodiments, the bezel 110 includes a body 112, and the receiving portion 111 is disposed on the body 112; the support member 113, support member 113 is connected with body 112, and exemplarily, support member 113 is connected with body 112 through the threaded fastener, and the connection stability is high.
At this time, the front end of the filter 140 is coupled to the body 112, and the rear end of the filter 140 is coupled to the support 113, so that the infrared touch display device 100 is easily assembled.
In some embodiments, second adhesive members are disposed between the filter 140 and the touch glass 150 and between the touch glass 150 and the supporting member 113, for example, the second adhesive members may be double-sided tapes, so that the connection between the filter 140 and the touch glass 150 and between the touch glass 150 and the supporting member 113 is stable, and the filter 140 is prevented from being displaced by being pressed.
It can be understood that the second adhesive is a light-impermeable member, and the second adhesive disposed between the filter 140 and the touch glass 150 can block the infrared light beam, so as to increase the touch height H. The thickness of the second adhesive along the vertical direction of the touch glass 150 may be 0.1mm-0.5mm, so as to avoid that the touch height H is significantly increased due to the arrangement of the second adhesive.
The embodiments or implementation modes in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments may be referred to each other.
In the description of the present specification, reference to the description of the terms "one embodiment", "some embodiments", "an illustrative embodiment", "an example", "a specific example", or "some examples", etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. An infrared touch display device, comprising:
touch control glass;
the frame surrounds the outer side of the periphery of the touch control glass, the frame is provided with an accommodating part, and an opening of the accommodating part faces the inner side of the frame;
the circuit board is positioned in the accommodating part, and an infrared assembly is arranged on the circuit board;
the infrared assembly is positioned on the outer side of the periphery of the touch control glass and comprises an infrared emitting piece and an infrared receiving piece, and the infrared emitting piece and the infrared receiving piece are respectively arranged on two opposite sides of the frame;
the reflecting sheet is attached to the inner wall surface of the accommodating part and is arranged on the front side of the infrared assembly; the reflection sheet comprises a first reflection sheet and a second reflection sheet, and the first reflection sheet and the second reflection sheet are respectively arranged corresponding to the infrared emitting piece and the infrared receiving piece;
the infrared emitting piece is used for emitting infrared light beams towards the front side of the display device, the first reflection sheet is used for reflecting the received infrared light beams towards the second reflection sheet, and the second reflection sheet is used for reflecting the infrared light beams from the first reflection sheet to the infrared receiving piece.
2. The infrared touch display device of claim 1,
the first reflector plate and the second reflector plate are oppositely arranged, and an included angle between at least one of the first reflector plate and the second reflector plate and the touch glass is 45 degrees.
3. The infrared touch display device of claim 1, wherein the reflective sheet is a piece of metal, glass, or silicone.
4. The infrared touch display device according to claim 1, wherein a first adhesive member is provided between the reflection sheet and an inner wall surface of the accommodating portion.
5. The infrared touch display device of any one of claims 1-4,
the light emitting end of the infrared emitting piece is located between the front side face and the rear side face of the touch control glass, and the light entering end of the infrared receiving piece is located between the front side face and the rear side face of the touch control glass.
6. The infrared touch display device of any one of claims 1-4, wherein the touch glass is recessed from the edge toward the middle toward the back side.
7. The infrared touch display device of any one of claims 1-4,
the infrared touch display device further comprises a light filtering piece, the front end of the light filtering piece is connected with the opening of the accommodating portion, and the rear end of the light filtering piece is connected with the touch glass.
8. The infrared touch display device of claim 7, wherein the rear end of the filter is disposed obliquely toward a side away from the circuit board.
9. The infrared touch display device of claim 8, wherein the bezel comprises:
a body on which the receiving portion is provided;
a support member coupled to the body; the front end of the light filtering piece is connected with the body, and the rear end of the light filtering piece is connected with the supporting piece.
10. The infrared touch display device of claim 9, wherein second adhesive members are disposed between the filter member and the touch glass and between the touch glass and the support member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122842565.2U CN216388051U (en) | 2021-11-18 | 2021-11-18 | Infrared touch display device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122842565.2U CN216388051U (en) | 2021-11-18 | 2021-11-18 | Infrared touch display device |
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| CN216388051U true CN216388051U (en) | 2022-04-26 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023226511A1 (en) * | 2022-05-25 | 2023-11-30 | 华为技术有限公司 | Infrared touch-control apparatus, infrared touch-control system and display device |
| US20250020952A1 (en) * | 2023-07-12 | 2025-01-16 | Wistron Corporation | Display apparatus and display holding device thereof |
| WO2025025717A1 (en) * | 2023-07-31 | 2025-02-06 | 深圳市华胜软件技术有限公司 | Display device |
| US12276875B2 (en) * | 2023-07-12 | 2025-04-15 | Wistron Corporation | Display apparatus and display holding device thereof |
-
2021
- 2021-11-18 CN CN202122842565.2U patent/CN216388051U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023226511A1 (en) * | 2022-05-25 | 2023-11-30 | 华为技术有限公司 | Infrared touch-control apparatus, infrared touch-control system and display device |
| US20250020952A1 (en) * | 2023-07-12 | 2025-01-16 | Wistron Corporation | Display apparatus and display holding device thereof |
| US12276875B2 (en) * | 2023-07-12 | 2025-04-15 | Wistron Corporation | Display apparatus and display holding device thereof |
| WO2025025717A1 (en) * | 2023-07-31 | 2025-02-06 | 深圳市华胜软件技术有限公司 | Display device |
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