CN212905832U

CN212905832U - Touch screen backlight source with adjustable brightness

Info

Publication number: CN212905832U
Application number: CN202022369957.7U
Authority: CN
Inventors: 林德雄; 方展胜
Original assignee: Dongguan City Tezhan Electronics Co ltd
Current assignee: Dongguan City Tezhan Electronics Co ltd
Priority date: 2020-10-22
Filing date: 2020-10-22
Publication date: 2021-04-06
Anticipated expiration: 2030-10-22

Abstract

The utility model discloses a touch screen backlight source with adjustable brightness, which comprises a touch screen body, wherein one side of the touch screen body is fixedly provided with a backlight source component through a fixing device, the backlight source component comprises a reflecting sheet, a light guide plate, a diffusion plate, a light screen, a heat absorbing layer, a mounting plate and a dust screen, one side of the reflecting sheet is fixedly connected with the light guide plate, and one side of the light guide plate is fixedly connected with the diffusion plate, the photosensitive sensor can sense the change of the external light environment and feed the change back to the micro-processor to control the LED lamp to adjust the brightness so as to match the change of the external light, the eyes of a user are protected, the micro processor controls the micro heat dissipation fan to release wind energy to perform heat dissipation treatment on the backlight source assembly, and screen damage and poor user experience caused by overhigh temperature are avoided.

Description

Touch screen backlight source with adjustable brightness

Technical Field

The utility model relates to a backlight field specifically is a luminance adjustable touch-sensitive screen backlight.

Background

BackLight (BackLight) is a light source located behind a Liquid Crystal Display (LCD), and its lighting effect directly affects the visual effect of the liquid crystal display module (LCM). The liquid crystal display does not emit light, displays a graph or modulates light, is widely applied to industries such as a touch screen, a backlight source, an LCD/LCM, a mobile phone, a tablet personal computer, a GPS, a solar battery and the like, and is in the leading level of the industries, an automatic film pasting production line combined by a plurality of companies realizes full-automatic production, more than 80% of production workers can be saved for customers, labor cost is greatly reduced for enterprises, and a whole set of applicable production process flow and production solution are provided for the enterprises.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a luminance adjustable touch-sensitive screen backlight to the backlight that proposes in solving above-mentioned background art can not be independently adjust the screen brightness according to the change of outside ring light and lead to causing the damage to user's eyes and the backlight can not dispel the heat well in the course of the work and lead to the screen to send out the problem of scalding.

In order to achieve the above object, the utility model provides a following technical scheme: a touch screen backlight source with adjustable brightness comprises a touch screen body, wherein a backlight source assembly is fixedly arranged on one side of the touch screen body through a fixing device, the backlight source assembly consists of a reflecting sheet, a light guide plate, a diffusion plate, a light screen, a heat absorption layer, a mounting plate and a dust screen, the light guide plate is fixedly connected to one side of the reflecting sheet, the diffusion plate is fixedly connected to one side of the light guide plate, the light screen is fixedly connected to one side of the diffusion plate, the heat absorption layer is fixedly connected to one side of the light screen, the mounting plate is fixedly connected to one side of the heat absorption layer, the dust screen is fixedly connected to one side of the mounting plate, a photosensitive sensor is fixedly arranged at the top end of the other side of the touch screen body, a microprocessor is fixedly arranged at the bottom end of the fixing device, the photosensitive sensor is, the micro-processor is electrically connected with an external power supply through a press switch.

As an optimal technical scheme of the utility model, the one end fixed mounting of light guide plate has the LED lamp, LED lamp and microprocessor electric connection.

As an optimal technical scheme of the utility model, the fixed miniature radiator fan of a plurality of, a plurality of that is provided with in middle part of mounting panel miniature radiator fan all with microprocessor electric connection.

As a preferred technical scheme of the utility model, the four sides of diffuser plate are all fixed and are provided with black strip of back of the body.

As a preferred technical scheme of the utility model, fixing device comprises U type mount, spring and the type clamp splice of falling L, the top fixedly connected with spring of U type mount inner wall, the type clamp splice of falling L of one end fixedly connected with of spring, the spout sliding connection that the one end of the type clamp splice of falling L and U type mount inner wall one side were seted up.

As an optimized technical proposal of the utility model, the heat absorption layer is made of radiation cooling heat insulation coating.

Compared with the prior art, the beneficial effects of the utility model are that: the device simple structure, high durability and convenient operation, can respond to the change of external light environment through photosensitive sensor, and feed back this change to microprocessor and control the LED lamp and carry out adjustting of the lighteness, change with the matching external light, protect user's eyes, microprocessor control miniature radiator fan releases wind and can come to carry out the thermal treatment to the backlight subassembly, avoid the high temperature to lead to the screen to damage and cause user experience to feel not good, the setting up of back of the body black strip can effectually block the light of reflecting to the outside from the diffusion surface, avoid forming the border bright line, come to fix the backlight subassembly through the combined action of U type mount and the type of falling L clamp splice and avoid in use the backlight subassembly to drop and lead to the screen to break down, and can dismantle the maintenance with the backlight subassembly through the type of falling L clamp splice of sliding.

Drawings

Fig. 1 is a front sectional view of the present invention;

FIG. 2 is an enlarged view of a portion A of the present invention;

fig. 3 is a structural diagram of the diffusion plate of the present invention.

In the figure: 1. a touch screen body; 2. a fixing device; 3. a photosensitive sensor; 4. a U-shaped fixing frame; 5. a spring; 6. an inverted L-shaped clamp block; 7. a push switch; 8. a microprocessor; 9. a reflective sheet; 10. a light guide plate; 11. a diffusion plate; 12. a visor; 13. a heat absorbing layer; 14. a micro heat dissipation fan; 15. mounting a plate; 16. a dust screen; 17. an LED lamp; 18. black bars are backed.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a touch screen backlight source with adjustable brightness, which comprises a touch screen body 1, a backlight source assembly fixedly disposed on one side of the touch screen body 1 via a fixing device 2, the backlight source assembly comprising a reflector plate 9, a light guide plate 10, a diffuser plate 11, a light shielding plate 12, a heat absorbing layer 13, a mounting plate 15 and a dust screen 16, the light guide plate 10 fixedly connected to one side of the reflector plate 9, the diffuser plate 11 fixedly connected to one side of the light guide plate 10, the light shielding plate 12 fixedly connected to one side of the diffuser plate 11, the heat absorbing layer 13 fixedly connected to one side of the light shielding plate 12, the mounting plate 15 fixedly connected to one side of the heat absorbing layer 13, the dust screen 16 fixedly connected to one side of the mounting plate 15, a photosensitive sensor 3 fixedly mounted on the top of the other side of, the photosensitive sensor 3 is electrically connected with the microprocessor 8, the bottom end of the other side of the touch screen body 1 is fixedly provided with the press switch 7, the microprocessor 8 is electrically connected with an external power supply through the press switch 7, the model of the photosensitive sensor 3 is LXD-GB5-A1E, and the model of the microprocessor 8 is SD 506.

Preferably, an LED lamp 17 is fixedly mounted at one end of the light guide plate 10, the LED lamp 17 is electrically connected to the microprocessor 8, and the microprocessor 8 controls the intensity of light emitted from the LED lamp 17.

Preferably, the middle part of the mounting plate 15 is fixedly provided with a plurality of micro heat dissipation fans 14, the plurality of micro heat dissipation fans 14 are electrically connected with the micro processor 8, the micro heat dissipation fans 14 are controlled by the micro processor 8 to release wind energy to perform heat dissipation treatment on the backlight source assembly, and the problems that the screen is damaged due to overhigh temperature and the experience of a user is poor are avoided.

Preferably, back black stripes 18 are fixedly disposed on four sides of the diffusion plate 11, and the back black stripes 18 are disposed to effectively block light reflected from the diffusion surface to the outside, so as to avoid forming bright edge lines.

Preferably, fixing device 2 comprises U type mount 4, spring 5 and the type of falling L clamp splice 6, the top fixedly connected with spring 5 of the 4 inner walls of U type mount, the one end fixedly connected with type of falling L clamp splice 6 of spring 5, the spout sliding connection that the one end of the type of falling L clamp splice 6 was seted up with U type mount 4 inner wall one side, come to fix the backlight subassembly through U type mount 4 and the combined action of type of falling L clamp splice 6 and avoid in use that the backlight subassembly drops and lead to the screen to break down, and can come to dismantle the maintenance with the backlight subassembly through the type of sliding L clamp splice 6.

Preferably, the heat absorbing layer 13 is made of a radiation cooling and heat insulating coating, and the radiation cooling and heat insulating coating can quickly and effectively absorb heat of the backlight source assembly.

When the utility model is used specifically, the utility model relates to a luminance adjustable touch-sensitive screen backlight, people press down press switch 7 in the use, microprocessor 8 begins to start, control photosensitive sensor 3, LED lamp 17 and a plurality of miniature radiator fan 14 circular telegram begins to work, photosensitive sensor 3 can respond to the change of external light environment, and feed back this change to microprocessor 8 and control LED lamp 17 and carry out luminance regulation, in order to match the change of external light, protect user's eyes, microprocessor 8 controls miniature radiator fan 14 and releases wind energy to carry out the heat dissipation treatment to the backlight subassembly, avoid the screen damage and cause user experience to feel bad due to the high temperature, the setting of back black strip 18 can effectively block the light that reflects to the outside from the diffusion surface, avoid forming the bright line at the border, when the backlight subassembly breaks down, the backlight unit can be disassembled and repaired by sliding the inverted-L-shaped clamping block 6.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a luminance adjustable touch-sensitive screen backlight, includes touch-sensitive screen body (1), its characterized in that: the touch screen comprises a touch screen body (1), and is characterized in that a backlight source assembly is fixedly arranged on one side of the touch screen body (1) through a fixing device (2), the backlight source assembly consists of a reflector plate (9), a light guide plate (10), a diffusion plate (11), a shading plate (12), a heat absorption layer (13), a mounting plate (15) and a dust screen (16), the light guide plate (10) is fixedly connected to one side of the reflector plate (9), the diffusion plate (11) is fixedly connected to one side of the light guide plate (10), the shading plate (12) is fixedly connected to one side of the diffusion plate (11), the heat absorption layer (13) is fixedly connected to one side of the shading plate (12), the mounting plate (15) is fixedly connected to one side of the heat absorption layer (13), the dust screen (16) is fixedly connected to one side of the mounting plate (, the bottom fixed mounting of fixing device (2) has microprocessor (8), photosensitive sensor (3) and microprocessor (8) electric connection, the bottom fixed mounting of touch-sensitive screen body (1) opposite side has press switch (7), microprocessor (8) are through press switch (7) and external power supply electric connection.

2. The backlight of claim 1, wherein: one end of the light guide plate (10) is fixedly provided with an LED lamp (17), and the LED lamp (17) is electrically connected with the microprocessor (8).

3. The backlight of claim 1, wherein: the middle part of mounting panel (15) is fixed and is provided with a plurality of miniature radiator fan (14), a plurality of miniature radiator fan (14) all with microprocessor (8) electric connection.

4. The backlight of claim 1, wherein: and back black strips (18) are fixedly arranged on four sides of the diffusion plate (11).

5. The backlight of claim 1, wherein: fixing device (2) comprise U type mount (4), spring (5) and type clamp splice (6) of falling L, the top fixedly connected with spring (5) of U type mount (4) inner wall, the one end fixedly connected with type clamp splice (6) of falling L of spring (5), the spout sliding connection that the one end of type clamp splice (6) and U type mount (4) inner wall one side were seted up falls L type clamp splice (6).

6. The backlight of claim 1, wherein: the heat absorption layer (13) is made of radiation cooling heat insulation paint.