CN216412129U - Infrared touch screen of high accuracy of anti highlight interference - Google Patents
Infrared touch screen of high accuracy of anti highlight interference Download PDFInfo
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- CN216412129U CN216412129U CN202123304826.1U CN202123304826U CN216412129U CN 216412129 U CN216412129 U CN 216412129U CN 202123304826 U CN202123304826 U CN 202123304826U CN 216412129 U CN216412129 U CN 216412129U
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Abstract
The utility model discloses a high-precision infrared touch screen capable of resisting strong light interference, which comprises a casing, wherein the front surface of the casing is of an open structure, the side wall of the casing is provided with a fixed groove, a polished rod resistor is arranged inside the fixed groove, a circuit board is arranged inside the casing, the front surface of the circuit board is sequentially provided with a base plate, a protective layer and a filter layer, a circle of the filter layer is provided with a groove body, the inner wall of the groove body is provided with a filter film, and a lamp bead is arranged inside the filter film. Has the advantages that: the bright light of lamp pearl sees through the cell body and shines the filter layer, makes whole filter layer all contain the filtering effect of cell body, realizes the compensation to the highlight through the filter layer that has filtering effect to reach the purpose of anti highlight, anti highlight effect is good.
Description
Technical Field
The utility model relates to the field of infrared touch screens, in particular to a high-precision infrared touch screen capable of resisting strong light interference.
Background
In daily life, the touch screen is visible everywhere, is quite popular in application, becomes standard configuration of a human-computer interface, and brings great convenience to users. The infrared touch screen is one kind of touch screen and consists of infrared emitting tube and receiving tube installed on the outer frame of the touch screen.
When an existing infrared touch screen is irradiated by external strong light, but the sunlight contains infrared waves, the infrared waves irradiate an infrared receiving tube, and therefore interference is brought to touch positioning.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problems and provide a high-precision infrared touch screen with strong light interference resistance.
In order to achieve the purpose, the utility model provides the following technical scheme:
the utility model provides a high-precision infrared touch screen capable of resisting strong light interference, which comprises a machine shell, wherein the front surface of the machine shell is of an open structure, the side wall of the machine shell is provided with a fixed groove, a polished rod resistor is arranged inside the fixed groove, a circuit board is arranged inside the machine shell, a substrate, a filter layer and a protective layer are sequentially arranged on the front surface of the circuit board, and a frame for fixing the filter layer is arranged on the outer side of the machine shell;
infrared emitter and infrared receiver are installed respectively to frame about the base plate, install respectively to the frame about the base plate infrared emitter with infrared receiver, the round of filter layer is provided with the cell body, the cell body inner wall is provided with the filter coating, filter coating internally mounted has the lamp pearl, the lamp pearl is in the cell body outside evenly distributed, polished rod resistance infrared emitter infrared receiver with the lamp pearl all with the circuit board electricity is connected.
Adopt above-mentioned anti high accuracy infrared touch screen of strong light interference, when the use device, through utilizing infra-red transmitter transmission infrared ray is passed through infra-red receiver receives the infrared ray, infra-red transmitter with infra-red receiver's light constitutes the rectangle dot matrix to the touch-control operation of assistant user, through the fixed slot is inside the polished rod resistance detects outside luminance, when external brightness is higher, passes through circuit board control the lamp pearl is bright, then the bright light of lamp pearl sees through the cell body is right the filter layer shines, makes wholly the filter layer all contains the filtering effect of cell body is through having filtering effect the filter layer realizes the compensation to the highlight to reach the purpose of anti highlight, anti strong light is effectual.
Preferably, a light shielding layer is arranged on the surface, facing the protective layer, of the filter layer, the light shielding layer is of a frame-shaped structure, and the light shielding layer corresponds to the infrared transmitter and the infrared receiver.
Preferably, the lamp beads comprise a white light lamp and a yellow light lamp, and the white light lamp and the yellow light lamp are distributed at intervals.
Preferably, the number of the fixing grooves is four, and the fixing grooves correspond to four sides of the housing respectively.
Preferably, the substrate is matched with the housing slot.
Preferably, the substrate, the protective layer, and the filter layer are bonded and fixed.
Preferably, the frame is connected with the casing in a snap-fit manner.
Has the advantages that: the bright light of lamp pearl sees through the cell body and shines the filter layer, makes whole filter layer all contain the filtering effect of cell body, realizes the compensation to the highlight through the filter layer that has filtering effect to reach the purpose of anti highlight, anti highlight effect is good.
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, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of the internal structure of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is a left side view of the substrate, passivation layer, and filter layer of the present invention;
fig. 4 is an enlarged view of a portion of the filter layer according to the present invention.
The reference numerals are explained below:
1. a housing; 101. fixing grooves; 2. a polished rod resistor; 3. a substrate; 301. an infrared emitter; 302. an infrared receiver; 4. a protective layer; 5. a filter layer; 501. a trough body; 502. a light filtering film; 503. a lamp bead; 504. a light-shielding layer; 6. a circuit board; 7. a frame-shaped frame.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the utility model, and not restrictive of the full scope of the utility model. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
Referring to fig. 1-4, the utility model provides a high-precision infrared touch screen with strong light interference resistance, which comprises a casing 1, wherein the front surface of the casing 1 is of an open structure, a fixing groove 101 is formed in the side wall of the casing 1, a polish rod resistor 2 is installed inside the fixing groove 101, a circuit board 6 is installed inside the casing 1, a substrate 3, a filter layer 5 and a protective layer 4 are sequentially installed on the front surface of the circuit board 6, the substrate 3 is matched with a clamping groove of the casing 1, and a frame 7 for fixing the filter layer 5 is installed on the outer side of the casing 1;
As an alternative embodiment, the surface of the filter layer 5 facing the protective layer 4 is provided with a light shielding layer 504, the light shielding layer 504 is in a frame structure, and the light shielding layer 504 corresponds to the infrared emitter 301 and the infrared receiver 302, so that the light shielding layer 504 can shield the brightness of the lamp bead 503.
The number of the fixing grooves 101 is four, and the fixing grooves correspond to four sides of the casing 1, so that the external light can be detected through the plurality of the rod resistors 2.
The base plate 3, the protective layer 4 and the filter layer 5 are bonded and fixed, so that the base plate 3, the protective layer 4 and the filter layer 5 are fixed through bonding, and the base plate 3, the protective layer 4 and the filter layer 5 are limited.
The frame 7 is connected with the casing 1 through a buckle, and is fixed to the casing 1 through the frame 7, and the filter layer 5 can be compressed through the frame 7.
Adopt above-mentioned structure, when the using device, through utilizing infra-red transmitter 301 transmission infrared ray, receive the infrared ray through infra-red receiver 302, infra-red transmitter 301 constitutes the rectangle dot matrix with infra-red receiver 302's light, thereby the touch-control operation of auxiliary user, polish rod resistance 2 through fixed slot 101 inside detects outside luminance, when outside luminance is higher, light through circuit board 6 control lamp pearl 503, then the bright light of lamp pearl 503 sees through cell body 501 and shines filter layer 5, make whole filter layer 5 all contain the filter effect of cell body 501, realize the compensation to the highlight through filter layer 5 that has filter effect, thereby reach the purpose of anti highlight, anti highlight effect is good.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (7)
1. The utility model provides an infrared touch-control screen of high accuracy of anti highlight interference which characterized in that: the optical filter comprises a machine shell (1), wherein the front surface of the machine shell (1) is of an open structure, a fixing groove (101) is formed in the side wall of the machine shell (1), a polished rod resistor (2) is installed inside the fixing groove (101), a circuit board (6) is installed inside the machine shell (1), a substrate (3), a filter layer (5) and a protective layer (4) are sequentially installed on the front surface of the circuit board (6), and a frame-shaped frame (7) used for fixing the filter layer (5) is installed on the outer side of the machine shell (1);
infrared emitter (301) and infrared receiver (302) are installed respectively to frame about base plate (3), install respectively to frame about base plate (3) infrared emitter (301) with infrared receiver (302), the round of filter layer (5) is provided with cell body (501), cell body (501) inner wall is provided with filter coating (502), filter coating (502) internally mounted has lamp pearl (503), lamp pearl (503) are in cell body (501) outside evenly distributed, polished rod resistance (2) infrared emitter (301) infrared receiver (302) with lamp pearl (503) all with circuit board (6) electricity is connected.
2. The infrared touch screen of claim 1, wherein the touch screen is characterized in that: the surface of the filter layer (5) facing the protective layer (4) is provided with a light shielding layer (504), the light shielding layer (504) is of a frame-shaped structure, and the light shielding layer (504) corresponds to the infrared transmitter (301) and the infrared receiver (302).
3. The infrared touch screen of claim 1, wherein the touch screen is characterized in that: the lamp beads (503) comprise a white light lamp and a yellow light lamp which are distributed at intervals.
4. The infrared touch screen of claim 3, wherein the touch screen is characterized in that: the number of the fixing grooves (101) is four, and the fixing grooves correspond to four sides of the machine shell (1) respectively.
5. The infrared touch screen of claim 1, wherein the touch screen is characterized in that: the base plate (3) is matched with the clamping groove of the shell (1).
6. The infrared touch screen of claim 5, wherein the touch screen is characterized in that: the substrate (3), the protective layer (4) and the filter layer (5) are fixedly bonded.
7. The infrared touch screen of claim 1, wherein the touch screen is characterized in that: the frame (7) is connected with the casing (1) in a buckling manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123304826.1U CN216412129U (en) | 2021-12-27 | 2021-12-27 | Infrared touch screen of high accuracy of anti highlight interference |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123304826.1U CN216412129U (en) | 2021-12-27 | 2021-12-27 | Infrared touch screen of high accuracy of anti highlight interference |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216412129U true CN216412129U (en) | 2022-04-29 |
Family
ID=81285004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123304826.1U Active CN216412129U (en) | 2021-12-27 | 2021-12-27 | Infrared touch screen of high accuracy of anti highlight interference |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216412129U (en) |
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2021
- 2021-12-27 CN CN202123304826.1U patent/CN216412129U/en active Active
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