CN211858012U

CN211858012U - LED display screen integrating touch control and display

Info

Publication number: CN211858012U
Application number: CN202020708997.7U
Authority: CN
Inventors: 刘利平; 涂俊清; 刘亮; 肖章权; 杨爱兰; 周忠林; 丁永华
Original assignee: Jiangxi Lianchuang Nanfen Technology Co ltd
Current assignee: Jiangxi Lianchuang Nanfen Technology Co ltd
Priority date: 2020-05-01
Filing date: 2020-05-01
Publication date: 2020-11-03
Anticipated expiration: 2030-05-01

Abstract

The utility model provides an integrated touch-control and LED display screen who shows, is including installation casing, PCB board and display diaphragm, the installation casing is bottom open-ended hollow cavity class structure, PCB board fixed mounting in the die cavity of installation casing, display diaphragm seal cover in on the up end of installation casing, several light trap and button hole have been seted up on the up end of installation casing, several LED backlight has been seted up on the PCB board, the LED backlight all aligns the light trap, every all be equipped with a touch spring in the button hole, touch spring all with PCB board electric connection, the PCB board passes through the connecting wire and is connected with the controller. The utility model has the advantages of reasonable design, directly integrate the backlight on the PCB board, will show that the diaphragm is sealed to be attached on the up end of installation casing again, through set up the light trap on the installation casing, provide the light source for showing the diaphragm through the light trap by the LED backlight, can guarantee normal demonstration function, can guarantee the leakproofness of whole device again.

Description

LED display screen integrating touch control and display

Technical Field

The utility model relates to a touch screen technical field specifically is a LED display screen of integrated touch-control and demonstration.

Background

With the continuous development of science and technology, touch screens are widely used in various fields, but the touch screens have more and more challenges. At present, in the display module of the existing touch screen, the backlight source is generally arranged in the backlight module, and then is electrically connected with the PCB through the FPC, because the connection circuit is arranged between the backlight module and the control module, when the working environment needing better sealing performance is faced, the traditional touch screen often has difficulty in meeting the sealing performance requirement due to the connection circuit between the backlight module and the control module. And the spring at the button of the existing touch screen is generally a touch spring on the film, and the sealing performance of the product can also be influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the not enough of existence among the prior art, providing a LED display screen of integrated touch-control and demonstration, the backlight of having solved the backlight unit who touches the display screen among the prior art generally sets up in backlight unit, and back rethread FPC and PCB board electric connection are difficult to satisfy the problem of leakproofness requirement.

In order to realize the purpose, the utility model discloses a technical scheme be:

the utility model provides an integrated touch-control and LED display screen who shows, is including installation casing, PCB board and display diaphragm, the installation casing is bottom open-ended hollow cavity class structure, PCB board fixed mounting in the die cavity of installation casing, display diaphragm seal cover in on the up end of installation casing, several light trap and button hole have been seted up on the up end of installation casing, several LED backlight has been seted up on the PCB board, the LED backlight all aligns the light trap, every all be equipped with a touch spring in the button hole, touch spring all with PCB board electric connection, the PCB board passes through the connecting wire and is connected with the controller.

Furthermore, the button holes are all round holes, the touch spring is located at the bottom of the button holes, a round pressing block is arranged at the top of the touch spring, and when the touch spring is in the original length, the top end face of the pressing block is flush with the upper end face of the installation shell.

Further, the PCB is packaged in the cavity of the mounting shell by adopting a semi-encapsulation process.

Further, a protective film is hermetically covered on the top surface of the display membrane.

Furthermore, a touch display IC is further arranged in the PCB, a touch sensing module and a display driving module are integrated on the touch display IC, and the touch display IC is electrically connected with the connecting line and the touch spring through a circuit.

The utility model discloses simple structure, reasonable in design, with backlight unit's direct integration of backlight on the PCB board, will show that diaphragm seal attaches on the up end of installation casing again, through set up the light trap on the installation casing, conduct the light source that the LED backlight produced to showing on the diaphragm, make to show that the diaphragm accomplishes normal demonstration function. The utility model discloses in with the direct integrated circuit connection between backlight unit and the PCB board that has reduced on the PCB board of backlight, improved the leakproofness of whole device. Simultaneously the utility model discloses in touch spring mounting in the button hole, will show diaphragm seal installation again on the up end of installation casing, hide the touch spring in the below of showing the diaphragm, further improvement the sealing performance of whole device, and the touch spring is difficult for droing, has improved the stability of product. The utility model discloses touch-control display IC on well PCB board still with touch-control induction module and show that drive module is integrated on same IC, has improved the integrated level of product, has reduced product cost, has improved the reliability of product.

Drawings

FIG. 1 is an exploded view of the structure of the device of the present invention;

fig. 2 is a top view of the mounting housing of the present invention;

fig. 3 is a schematic structural view between the connecting line and the mounting housing in the present invention;

fig. 4 is a sectional view of the installation structure of the touch spring in the installation housing according to the present invention;

fig. 5 is a schematic diagram of a touch display IC board according to the present invention;

in the figure: 1. the LED backlight lamp comprises an installation shell, 2, a PCB, 3, a display diaphragm, 4, a light hole, 5, a button hole, 6, an LED backlight lamp, 7, a touch spring, 8, a connecting wire, 9 and a pressing block.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The LED display screen integrating touch control and display as shown in fig. 1-4 comprises a mounting housing 1, a PCB 2 and a display membrane 3, and is characterized in that the mounting housing 1 is a hollow cavity structure with an open bottom, the PCB 2 is fixedly mounted in the cavity of the mounting housing 1, the display membrane 3 is hermetically covered on the upper end surface of the mounting housing 1, the upper end surface of the mounting housing 1 is provided with a plurality of light transmission holes 4 and button holes 5, the PCB 2 is provided with a plurality of LED backlights 6, the LED backlights 6 are aligned with the light transmission holes 4, each button hole 5 is internally provided with a touch spring 7, the touch springs 7 are electrically connected with the PCB 2, and the PCB 2 is connected with a controller through a connecting wire 8; the touch spring 7 is positioned at the bottom of the button hole 5, a round pressing block 9 is arranged at the top of the touch spring 7, and when the touch spring 7 is in the original length, the top end surface of the pressing block 9 is flush with the upper end surface of the installation shell 1; the PCB 2 is encapsulated in a cavity of the mounting shell 1 by adopting a semi-encapsulation process; the top surface of the display membrane 3 is hermetically covered with a protective film.

As shown in fig. 5, a touch display IC is further disposed in the PCB 2, a touch sensing module and a display driving module are integrated on the touch display IC, and the touch display IC is electrically connected to the connecting line 8 and the touch spring 7 through a circuit, so that the touch sensing module and the display driving module are integrated on the same IC, thereby improving the integration level of the product and reducing the product cost.

The utility model discloses simple structure, reasonable in design directly integrates backlight unit's backlight on PCB board 2, will show diaphragm 3 sealed attached on the up end of installation casing 1 again, through set up light trap 4 on installation casing 1, conduct the light source that LED backlight 6 produced to showing diaphragm 3 on, make and show diaphragm 3 and accomplish normal demonstration function. The utility model discloses in with the direct integrated circuit connection between backlight unit and PCB board 2 that has reduced on PCB board 1 of backlight, improved the leakproofness of whole device. Simultaneously the utility model discloses in installing touch spring 7 in button hole 5, will show diaphragm 3 seal installation again on the up end of installation casing 1, hide touch spring 7 in the below that shows diaphragm 3, further improvement the sealing performance of whole device, and touch spring 7 is difficult for droing, has improved the stability of product. The utility model discloses touch-control display IC on well PCB board still with touch-control induction module and show that drive module is integrated on same IC, has improved the integrated level of product, has reduced product cost, has improved the reliability of product.

The above-described embodiments are illustrative of the present invention and not restrictive, it being understood that various changes, modifications, substitutions and alterations may be made herein without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An LED display screen integrating touch control and display comprises a mounting shell (1), a PCB (2) and a display membrane (3), it is characterized in that the mounting shell (1) is a hollow cavity structure with an opening at the bottom, the PCB (2) is fixedly arranged in a cavity of the mounting shell (1), the display diaphragm (3) is hermetically covered on the upper end surface of the mounting shell (1), a plurality of light holes (4) and button holes (5) are arranged on the upper end surface of the mounting shell (1), a plurality of LED backlight lamps (6) are arranged on the PCB (2), the LED backlight lamps (6) are aligned with the light holes (4), a touch spring (7) is arranged in each button hole (5), the touch springs (7) are electrically connected with the PCB (2), the PCB (2) is connected with the controller through a connecting wire (8).

2. The touch and display integrated LED display screen according to claim 1, wherein the button holes (5) are all round holes, the touch spring (7) is located at the bottom of the button holes (5), a round pressing block (9) is arranged at the top of the touch spring (7), and when the touch spring (7) is in the original length, the top end face of the pressing block (9) is flush with the upper end face of the mounting shell (1).

3. The touch and display integrated LED display screen according to claim 1, wherein the PCB (2) is encapsulated in the cavity of the mounting housing (1) by a semi-potting process.

4. The touch and display integrated LED display screen according to claim 1, wherein the top surface of the display film (3) is hermetically covered with a protective film.

5. The touch and display integrated LED display screen according to claim 1, wherein a touch display IC is further disposed in the PCB (2), a touch sensing module and a display driving module are integrated on the touch display IC, and the touch display IC is electrically connected to the connecting wires (8) and the touch springs (7) through wires.