CN220627038U - Infrared touch display screen - Google Patents
Infrared touch display screen Download PDFInfo
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- CN220627038U CN220627038U CN202322274240.8U CN202322274240U CN220627038U CN 220627038 U CN220627038 U CN 220627038U CN 202322274240 U CN202322274240 U CN 202322274240U CN 220627038 U CN220627038 U CN 220627038U
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- infrared
- display screen
- backlight
- touch display
- cover plate
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- 206010011409 Cross infection Diseases 0.000 abstract description 3
- 206010029803 Nosocomial infection Diseases 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000003993 interaction Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 244000089409 Erythrina poeppigiana Species 0.000 description 1
- 235000009776 Rathbunia alamosensis Nutrition 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- -1 fingers Substances 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
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Abstract
An infrared touch display screen, comprising: the TFT display screen comprises a cover plate, a TFT display screen and a backlight; the backlight is characterized in that an infrared receiver and an infrared emitter are arranged in the left side and the right side of the backlight, the cover plate is arranged at the top of the TFT display screen, and the backlight is arranged at the bottom of the TFT display screen. According to the infrared touch display screen, the infrared receiver and the infrared transmitter are arranged on the backlight, so that the display module can be directly interacted when fingers of a user touch the screen, and compared with the traditional touch technology, the infrared touch technology has the advantages of no need of an additional touch screen, capability of avoiding cross infection and the like, and is more applicable in certain demand scenes, and meanwhile, the response speed of the infrared touch technology can be improved, the interference can be reduced and the like by continuously perfecting and optimizing the infrared touch technology, so that the infrared touch display screen can better meet the demands of different users.
Description
Technical Field
The utility model relates to the technical field of display screens, in particular to an infrared touch display screen.
Background
The conventional common touch technology is mainly realized by a resistive touch screen or a capacitive touch screen, and has the main defects that conductors such as fingers, metal pens and the like are required to be directly contacted with the touch screen, and the touch pad cannot be very thin. The technical scheme realizes touch control by using infrared rays, so that the touch control device is very thin, a touch screen is not required to be installed, direct contact with a display module is not required, and the touch control device has the advantages of cross infection prevention, spaced touch and the like.
Disclosure of Invention
The utility model aims to overcome the defects in the prior art and provides an infrared touch display screen.
The aim of the utility model is realized by the following technical scheme:
an infrared touch display screen, comprising: the TFT display screen comprises a cover plate, a TFT display screen and a backlight; the backlight is characterized in that an infrared receiver and an infrared emitter are arranged in the left side and the right side of the backlight, the cover plate is arranged at the top of the TFT display screen, and the backlight is arranged at the bottom of the TFT display screen.
In one embodiment, the infrared emitter is comprised of an infrared emitting circuit, an infrared light emitting diode.
In one embodiment, the infrared receiver is composed of an infrared receiving circuit, a photosensitive receiving tube and an MCU, and the MCU is responsible for receiving signals for processing and communicating with a host.
In one embodiment, the length and width of the front faces of the TFT display screen and backlight are mutually adapted.
In one embodiment, four corners of the top surface of the cover plate are subjected to smooth frosting.
In one embodiment, the infrared receiver and the infrared emitter are positioned on the same horizontal plane of the backlight, and the infrared receiver and the infrared emitter are parallel to each other.
In one embodiment, the infrared emission range of the infrared emitter covers the surface of the cover plate, and the infrared receiving range of the infrared receiver covers the surface of the cover plate.
In one embodiment, the infrared emitter is in data connection with the TFT display screen.
In one embodiment, the length of the front surface of the backlight combined with the infrared receiver and the infrared emitter is matched with the length of the front surface of the TFT display screen.
In one embodiment, the infrared receiver and infrared emitter occupy 10% -15% of the backlight area.
Compared with the prior art, the utility model has at least the following advantages:
according to the infrared touch display screen, the infrared receiver and the infrared transmitter are arranged on the backlight, so that the user can directly perform interactive operation on the display module when the finger touches the screen, and compared with the traditional touch technology, the infrared touch technology has the advantages of no need of an additional touch screen, capability of avoiding cross infection and the like, and is more applicable in certain demand scenes, for example, the infrared touch technology can be adopted in occasions such as household intelligent control and public facility self-service to provide a user interaction mode. Meanwhile, the infrared touch technology is continuously perfected and optimized, so that the response speed of the infrared touch technology can be improved, the interference can be reduced, and the like, and the infrared touch technology can better meet the requirements of different users.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the whole structure of the front surface of an infrared touch display screen according to the present utility model;
FIG. 2 is a schematic diagram of the touch principle of the infrared touch display screen of the present utility model;
fig. 3 is a schematic diagram of a touch calculation mode of an infrared touch display screen according to the present utility model.
In the figure: 1. a cover plate; 2. a TFT display screen; 3. a backlight; 31. an infrared receiver; 32. an infrared emitter.
Detailed Description
In order that the utility model may be readily understood, a more complete description of the utility model will be rendered by reference to the appended drawings. The drawings illustrate preferred embodiments of the utility model. This utility model may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
In the description of the present application, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the present application and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.
Unless specifically stated or limited otherwise, the terms "mounted," "connected," "secured" and the like are to be construed broadly and may be, for example, fixedly connected or detachably connected or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
As shown in fig. 1-3, an infrared touch display screen includes: a cover plate 1, a TFT display screen 2 and a backlight 3; the backlight 3, the left and right sides of the backlight 3 are provided with an infrared receiver 31 and an infrared emitter 32, the cover plate 1 is arranged at the top of the TFT display 2, and the backlight 3 is arranged at the bottom of the TFT display 2.
It should be noted that, the principle of realizing touching: according to what is shown in fig. 2: when a finger touches a certain position on the screen, the distance between x1 and y1 needs to be calculated, so that the position information of the finger can be known, therefore, according to the content shown in fig. 3, when the finger is placed on the screen, the finger forms a triangle included angle with the infrared receiver 31 and the infrared emitter 32, while A, B, C in fig. 3 is included angle, a, B and C are corresponding sides, when the emitting angle and the distance between the infrared receiver 31 and the infrared emitter 32 are known, the position of the finger on the screen can be calculated according to the sine theorem of the triangle, a/sina=b/sinb=c/sinC, a+b+c=180, and B1 and b2. are corresponding to x1 and y1 of fig. 2, so that the obtained structure can be output to a host computer, and the mutual interaction of the touch screen can be realized.
As shown in FIG. 1, in one embodiment, infrared emitter 32 is comprised of an infrared emitting circuit, an infrared light emitting diode. The infrared receiver 31 is composed of an infrared receiving circuit, a photosensitive receiving tube and an MCU, and the MCU is responsible for receiving signals for processing and communicating with a host. It should be noted that, the infrared emitter 32 emits light onto the screen continuously, and the infrared receiver 31 receives the emitted light continuously.
As shown in fig. 1, in an embodiment, the length and width of the front surfaces of the cover plate 1, the TFT display screen 2, and the backlight 3 are adapted to each other. It should be noted that, the cover plate 1, the TFT display screen 2 and the backlight 3 are installed and produced, and their corresponding specifications are set.
As shown in fig. 1, in one embodiment, four corners of the top surface of the cover plate 1 are rounded. It should be noted that this design can enhance the safety performance of the cover plate 1.
As shown in fig. 1-3, in one embodiment, the infrared receiver 31 and the infrared emitter 32 are positioned at the same level as the backlight 3, and the infrared receiver 31 and the infrared emitter 32 are parallel to each other.
It should be noted that, the infrared receiver 31 and the infrared emitter 32 are located at the same horizontal plane, so that the position of the finger on the screen can be better received.
As shown in fig. 1 and 2, in one embodiment, the infrared emission range of the infrared emitter 32 covers the surface of the cover plate 1, and the infrared receiving range of the infrared receiver 31 covers the surface of the cover plate 1. It should be noted that, the design can make the infrared touch display screen not have a blind spot of touching.
As shown in fig. 1-3, in one embodiment, an infrared emitter 32 is in data connection with the TFT display screen 2. It should be noted that, the infrared emitter 32 can convert the finger position through the data module and transmit the converted finger position to the display screen and interact with the display screen.
As shown in fig. 1, in one embodiment, the backlight 3 is combined with the infrared receiver 31 and the infrared emitter 32, and the length of the front surface is adapted to the length of the front surface of the TFT display screen 2. The infrared receiver 31 and the infrared emitter 32 occupy 10% to 15% of the area of the backlight 3. The design can reduce the influence on the display screen after the backlight 3 is reduced.
The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.
Claims (10)
1. An infrared touch display screen, comprising:
the TFT display comprises a cover plate (1), a TFT display screen (2) and a backlight (3);
a backlight (3), an infrared receiver (31) and an infrared emitter (32) are arranged in the left side and the right side of the backlight (3),
the cover plate (1) is arranged at the top of the TFT display screen (2), and the backlight (3) is arranged at the bottom of the TFT display screen (2).
2. The infrared touch display of claim 1, wherein the infrared emitter (32) is comprised of an infrared emitting circuit, an infrared light emitting diode.
3. The infrared touch display screen according to claim 1, wherein the infrared receiver (31) is composed of an infrared receiving circuit, a photosensitive receiving tube and an MCU, and the MCU is responsible for processing the received signal and communicating with the host.
4. The infrared touch display screen according to claim 1, characterized in that the length and width of the front faces of the cover plate (1), TFT display screen (2) and backlight (3) are mutually adapted.
5. The infrared touch display screen according to claim 1, wherein four corners of the top surface of the cover plate (1) are smooth frosted.
6. The infrared touch display according to claim 1, characterized in that the infrared receiver (31) and the infrared emitter (32) are located at the same horizontal plane as the backlight (3), and the infrared receiver (31) and the infrared emitter (32) are parallel to each other.
7. The infrared touch display screen according to claim 1, characterized in that an infrared emission range of the infrared emitter (32) covers a surface of the cover plate (1), and an infrared receiving range of the infrared receiver (31) covers a surface of the cover plate (1).
8. The infrared touch display according to claim 1, characterized by a data connection between the infrared emitter (32) and the TFT display (2).
9. The infrared touch display screen according to claim 1, characterized in that the length of the front face of the backlight (3) combined with the infrared receiver (31) and the infrared emitter (32) is adapted to the length of the front face of the TFT display screen (2).
10. The infrared touch display of claim 1, wherein the infrared receiver (31) and the infrared emitter (32) occupy 10% -15% of the area of the backlight (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322274240.8U CN220627038U (en) | 2023-08-23 | 2023-08-23 | Infrared touch display screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322274240.8U CN220627038U (en) | 2023-08-23 | 2023-08-23 | Infrared touch display screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220627038U true CN220627038U (en) | 2024-03-19 |
Family
ID=90219144
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322274240.8U Active CN220627038U (en) | 2023-08-23 | 2023-08-23 | Infrared touch display screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220627038U (en) |
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2023
- 2023-08-23 CN CN202322274240.8U patent/CN220627038U/en active Active
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