CN212411172U - Touch screen display module - Google Patents
Touch screen display module Download PDFInfo
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- CN212411172U CN212411172U CN202021076907.3U CN202021076907U CN212411172U CN 212411172 U CN212411172 U CN 212411172U CN 202021076907 U CN202021076907 U CN 202021076907U CN 212411172 U CN212411172 U CN 212411172U
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- guide plate
- light guide
- touch
- display module
- screen display
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Abstract
The utility model discloses a touch-sensitive screen display module assembly, which comprises a housin, light guide plate, touch pad and display screen from top to bottom according to the preface is provided with in the casing, one side of light guide plate is the income plain noodles, the casing be provided with in the income plain noodles of light guide plate towards the light source of light guide plate, the bottom of display screen is connected with a control circuit board, light source, touch pad and display screen respectively with the control circuit board electricity is connected. The utility model discloses touch-sensitive screen display module sets up in order to light direct reflection to touch pad in the top of touch pad through the light guide plate that will have the light source, and the light loss is little, improves the utilization ratio of light, and is with low costs, and avoids up reflecting to user's eyes from the following with illumination, improves the security performance.
Description
Technical Field
The utility model relates to a touch-sensitive screen technical field especially relates to a touch-sensitive screen display module.
Background
The touch screen is a novel man-machine interaction input mode, compared with the traditional keyboard and mouse input mode, the touch screen is more visual in input, and can be matched with recognition software to realize handwriting input. The touch screen is composed of a detection part and a touch screen controller which are arranged in front of the display screen, when a finger or other objects touch the touch screen arranged at the front end of the display, the touched position is detected by the touch screen controller and is sent to the host through an interface (such as an RS-232 serial port, a USB and the like). The optical touch screen is one of numerous touch screens, the display screen of traditional optical touch screen is located the top of Light guide plate, one side of Light guide plate is provided with a plurality of LED (Light Emitting Diode) and throws Light on the display screen on it after the Light guide plate reflection, for the rear-mounted Light source, but the rear-mounted Light source Light loss is great, the luminance that gets into the display screen is lower, if need reach sufficient luminance then need more LED, the cost is great, and the illumination is from up reflecting down makes the illumination directly shine into user's eyes, it is great to user's glasses injury.
Accordingly, there is a need for a touch screen display module with low light loss that can solve the above-mentioned drawbacks to improve the utilization of light, save the amount of LEDs and reduce the cost, and avoid the illumination from being reflected from bottom to top to the eyes of the user, thereby improving the safety performance.
Disclosure of Invention
The utility model aims to solve the technical problem that a touch-sensitive screen display module that light loss is little is provided in order to improve the utilization ratio of light, saves LED's quantity and reduce cost, and avoids up reflecting to user's eyes from the bottom with illumination, improves the security performance.
In order to solve the technical problem, the utility model discloses a as follows technical scheme: the utility model provides a touch-sensitive screen display module assembly, includes the casing, from top to bottom sets gradually light guide plate, touch pad and display screen in the casing, one side of light guide plate is for going into the plain noodles, the casing is provided with in the income plain noodles of light guide plate towards the light source of light guide plate, the bottom side of display screen is connected with a control circuit board, light source, touch pad and display screen respectively with the control circuit board electricity is connected.
The further technical scheme is as follows: the shell comprises a front cover and a rear shell, the front cover and the rear shell are combined to form an accommodating cavity, and the front cover is provided with a touch window for exposing the light guide plate on the surface of the front cover.
The further technical scheme is as follows: the side of light guide plate, touch pad and display screen all is equipped with the lug, the backshell inboard corresponds the lug is provided with the recess to supply the lug card to establish.
The further technical scheme is as follows: the light source is arranged on the control circuit board and is arranged at the bottom side of the light guide plate, and the light source comprises a plurality of LEDs which are uniformly distributed along the width direction of the shell.
The further technical scheme is as follows: the light guide plate is an optical light guide plate made of PC materials.
The further technical scheme is as follows: and a plurality of mesh points which are sunken downwards are distributed on the upper surface of the light guide plate.
The further technical scheme is as follows: the mesh points are arranged on the light guide plate from sparse to dense along the irradiation direction of the light source.
The further technical scheme is as follows: the touch pad is respectively bonded with the light guide plate and the display screen through OCA optical cement.
The further technical scheme is as follows: the light incident surface of the light guide plate is provided with outward convex diffusion mesh points.
The further technical scheme is as follows: the touch panel comprises a top nano silver layer, an OCA adhesive layer and a bottom nano silver layer which are sequentially stacked from top to bottom.
The utility model has the advantages of: the utility model discloses touch-sensitive screen display module sets up in order to light direct reflection to the touch pad in the top of touch pad through the light guide plate that will have the light source, and the light loss is little, improves the utilization ratio of light, and is with low costs, and avoids with illumination from up reflecting to user's eyes down, improves the security performance, simultaneously, need not additionally to set up the glass membrane and can effectively protect the touch pad in order to avoid damaging to reduce the thickness of touch-sensitive screen display module.
Drawings
Fig. 1 is a schematic structural diagram of a touch screen display module according to the present invention;
fig. 2 is an exploded schematic view of the touch screen display module of the present invention;
fig. 3 is a schematic diagram of a hierarchical structure of a touch pad of the touch screen display module according to the present invention.
Detailed Description
To make the objects, technical solutions and advantages of the present invention more clearly understood by those skilled in the art, the present invention will be further described with reference to the accompanying drawings and examples.
Referring to fig. 1 to 2, in this embodiment, the utility model discloses touch screen display module 10 includes casing 110, stack according to the preface from top to bottom in casing 110 and be provided with light guide plate 120, touch pad 130 and display screen 140, one side of light guide plate 120 is the income plain noodles, casing 110 is provided with in the income plain noodles of light guide plate 120 towards light source 150 of light guide plate 120, the bottom side of display screen 130 is connected with a control circuit board 160, light source 150, touch pad 130 and display screen 140 respectively with control circuit board 160 electricity is connected.
Touch-sensitive screen display module assembly 10 sets up in the top of touch pad 130 through the light guide plate 120 that has light source 150 on one side in order to shine the light direct reflection and straight line on touch pad 130, and the light loss is little, improves the utilization ratio of light, and is with low costs, and avoids shining from up reflecting to user's eyes down, improves the security performance, simultaneously, need not additionally to set up the glass membrane and can effectively protect touch pad 130 in order to avoid damaging to reduce the thickness of touch-sensitive screen display module assembly 10.
Preferably, in this embodiment, the bottom side of the light guide plate 120 is a light incident surface, the light source 150 is disposed on the control circuit board 160 and is installed on the bottom side of the light guide plate 120, and the light source 150 includes a plurality of LEDs 151 uniformly distributed along the width direction of the housing 110. Wherein the number of the LEDs 151 is 5.
Specifically, the touch screen display module 10 further includes a connection end 170 disposed at the bottom side of the casing 110, the connection end 170 is electrically connected to the control circuit board 160, one end of the connection end 170 extends out of the casing 110, and the connection between the touch screen display module 10 and an external device is realized by disposing the connection end 170.
Specifically, in the present embodiment, the housing 110 includes a front cover 111 and a rear cover 112, the front cover 111 and the rear cover 112 are combined to form an accommodating cavity, and the front cover 111 is formed with a touch window for exposing the light guide plate 120 on the surface of the front cover 111 for user touch interaction.
Specifically, in this embodiment, the side edges of the light guide plate 120, the touch panel 130 and the display screen 140 are respectively provided with a protrusion, and the inner side of the rear housing 112 is provided with a groove 1121 corresponding to the protrusion for the protrusion to be clamped, so as to prevent the light guide plate 120, the touch panel 130 and the display screen 140 from shifting. The positions of the bumps of the light guide plate 120, the touch panel 130 and the display screen 140 are different.
Specifically, in the present embodiment, the light guide plate 120 is an optical light guide plate using a PC material. The optical light guide plate made of the PC material is used as the top layer, so that the optical light guide plate is not fragile, the maintenance cost is reduced, the heat resistance is high, the moisture absorption rate is low, and the chromatic aberration of the touch screen display module 10 can be reduced. Preferably, a plurality of mesh points recessed downward are distributed on the upper surface of the light guide plate 120, and the lower surface of the light guide plate 120 is a flat surface. The dots are arranged on the light guide plate 120 from sparse to dense along the illumination direction of the light source 150, so that the light reflected on the light guide plate 120 is uniform, the lower surface of the light guide plate 120 is a light-transmitting surface, and the illumination is emitted from the light source 150, is incident on the light guide plate 120, is reflected by the dots, is emitted linearly on the lower surface of the light guide plate 120, and is illuminated on the touch panel 130.
In the present embodiment, the light sources 150 are disposed on the bottom side of the light guide plate 120, and the distribution of the mesh points is from sparse to dense from the bottom side to the top side of the light guide plate 120. The bottom surface of the mesh points can be circular or triangular. The light incident surface of the light guide plate 120 is provided with outwardly protruding diffusion dots.
Specifically, the touch panel 130 is bonded to the light guide plate 120 and the display screen 140 through the OCA optical cement, and high-temperature bonding is not required, so that the preparation process is safe and reliable.
Referring to fig. 3, in the present embodiment, the touch panel 130 includes a top nano silver layer 131, an OCA adhesive layer 132, and a bottom nano silver layer 133 sequentially arranged from top to bottom, so that the thickness and weight of the touch panel 130 can be effectively reduced, and the overall thickness and weight of the touch screen display module 10 can be reduced.
To sum up, the utility model discloses touch-sensitive screen display module set up in order to shine the touch pad with light direct reflection and straight line through the light guide plate that will have the light source in the top of touch pad, and the light loss is little, improves the utilization ratio of light, reduces LED's quantity, and effective reduce cost, and avoid from up reflecting to user's eyes down with illumination, improve the security performance. Meanwhile, the touch pad can be effectively protected from being damaged without additionally arranging a glass film, so that the thickness of the touch screen display module is reduced. The touch pad is made by the nanometer silver layer, can effectively reduce touch panel thickness and weight, the light guide plate adopts the optics light guide plate of PC material not fragile, reduces the maintenance cost, and the practicality is strong.
The foregoing is considered as illustrative of the preferred embodiments of the invention and is not intended to limit the invention in any way. Various equivalent changes and modifications can be made on the basis of the above embodiments by those skilled in the art, and all equivalent changes and modifications within the scope of the claims should fall within the protection scope of the present invention.
Claims (10)
1. The utility model provides a touch-sensitive screen display module assembly, its characterized in that, includes the casing, light guide plate, touch pad and display screen are provided with according to the preface from top to bottom in the casing, one side of light guide plate is for going into the plain noodles, the casing is provided with in the income plain noodles of light guide plate towards the light source of light guide plate, the bottom side of display screen is connected with a control circuit board, light source, touch pad and display screen respectively with the control circuit board electricity is connected.
2. The touch screen display module of claim 1, wherein the housing comprises a front cover and a rear cover, the front cover and the rear cover are combined to form a receiving cavity, and the front cover forms a touch window for exposing the light guide plate on the surface of the front cover.
3. The touch screen display module of claim 2, wherein the light guide plate, the touch pad and the display screen are provided with bumps at the sides, and the inner side of the rear case is provided with grooves corresponding to the bumps for the bumps to be clamped.
4. The touch screen display module of claim 1, wherein the light source is disposed on the control circuit board and mounted on the bottom side of the light guide plate, and comprises a plurality of LEDs uniformly distributed along the width direction of the housing.
5. The touch screen display module of claim 1, wherein the light guide plate is an optical light guide plate using a PC material.
6. The touch screen display module of claim 1, wherein a plurality of downwardly recessed dots are distributed on the upper surface of the light guide plate.
7. The touch screen display module of claim 6, wherein the dots are arranged on the light guide plate from sparse to dense along the illumination direction of the light source.
8. The touch screen display module of claim 1, wherein the touch pad is bonded to the light guide plate and the display screen by OCA optical cement, respectively.
9. The touch screen display module of claim 1, wherein the light incident surface of the light guide plate is provided with outwardly protruding diffusion dots.
10. The touch screen display module of claim 1, wherein the touch panel comprises a top nano silver layer, an OCA adhesive layer, and a bottom nano silver layer stacked in sequence from top to bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021076907.3U CN212411172U (en) | 2020-06-11 | 2020-06-11 | Touch screen display module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021076907.3U CN212411172U (en) | 2020-06-11 | 2020-06-11 | Touch screen display module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212411172U true CN212411172U (en) | 2021-01-26 |
Family
ID=74406197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021076907.3U Active CN212411172U (en) | 2020-06-11 | 2020-06-11 | Touch screen display module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212411172U (en) |
-
2020
- 2020-06-11 CN CN202021076907.3U patent/CN212411172U/en active Active
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