CN210323691U

CN210323691U - Light source device for generating stripe light through LCD

Info

Publication number: CN210323691U
Application number: CN201921601718.0U
Authority: CN
Inventors: 王晶晶; 邓启路; 许欢甜; 黎立文
Original assignee: Dongguan Ruishi Optoelectronics Technology Co Ltd
Current assignee: Dongguan Ruishi Optoelectronics Technology Co Ltd
Priority date: 2019-09-24
Filing date: 2019-09-24
Publication date: 2020-04-14
Anticipated expiration: 2029-09-24

Abstract

The utility model discloses a produce light source device of stripe light through LCD, including the LCD display screen that is used for showing stripe light, the back of LCD display screen is provided with the diffusion device, the back of diffusion device is provided with the LED lamp plate of hi-lite and constant current. The utility model discloses the design is novel, reasonable in design, and convenient to use, the utility model discloses a LCD display screen produces the stripe light with the mode that shows, make the production of stripe light more intelligent, stripe light is only unchangeable among the having avoided prior art, the precision is lower, produce the blind area easily, be not suitable for large-scale article detection, be difficult to the performance effect in the aspect of three-dimensional application, simultaneously through setting up the LED lamp plate as the backlight on one side of the back at the LCD display screen, it is shaded to reach the high bright constant current of backlight, the luminance value is high, the homogeneity is good, and the constant current drive mode can avoid the effect of light source scintillation, and reach even and soft light's effect through setting up.

Description

Light source device for generating stripe light through LCD

Technical Field

The utility model relates to a light source technical field, in particular to produce light source device of stripe light through LCD.

Background

The traditional grating stripe belongs to a physical mode to realize stripe imaging, a set stripe is carved on a grating sheet, and then polishing is carried out, and the stripe is carved in advance, so that the stripe is unique and unchangeable, the precision is low, and a detection blind area is easy to generate. Because the grating is realized in a physical mode, the grating is limited by the polishing angle and the size of the grating sheet, and when some large, multi-angle, smooth-surface and irregular objects are processed, the traditional grating stripes can hardly meet the imaging requirements of all-around and multi-angle, and the three-dimensional application is more difficult to play a role.

SUMMERY OF THE UTILITY MODEL

In view of the above, the conventional fringe light generating device employs a grating, which causes the fringe light to be unique and unchanged, has low precision, is easy to generate a blind area, is not suitable for large-scale object detection, and is difficult to play a role in three-dimensional application. The utility model provides a light source device through LCD production stripe light produces stripe light with the mode that shows through the LCD display screen for the production of stripe light is more intelligent, and sets up the LED lamp plate as the backlight through back one side at the LCD display screen, reaches the high bright constant current of backlight, and the luminance value is high, and the homogeneity is good, and the constant current drive mode can avoid the effect of light source scintillation. The utility model discloses technical scheme as follows:

a light source device for generating stripe light through an LCD comprises an LCD display screen for displaying stripe light, wherein a diffusion device is arranged on the back surface of the LCD display screen, and an LED lamp panel with high brightness and constant current is arranged on the back surface of the diffusion device.

Further, preferably, the diffusion means is a diffusion plate.

Further, as preferred, still include the light source cavity, LCD display screen, diffusion device and LED lamp plate all set up in the light source cavity, the LCD display screen is close to one side border of light source cavity, the LED lamp plate is close to the opposite side border of light source cavity.

Further, preferably, a tempered glass plate for supporting the LCD display screen is disposed on a back surface of the diffusion device.

Further, as preferred, LCD display screen, diffusion device, LED lamp plate, light source cavity and toughened glass board all are the rectangle.

Has the advantages that: the utility model discloses the design is novel, reasonable in design, and convenient to use, the utility model discloses a LCD display screen produces the stripe light with the mode that shows, make the production of stripe light more intelligent, stripe light is only unchangeable among the having avoided prior art, the precision is lower, produce the blind area easily, be not suitable for large-scale article detection, be difficult to the performance effect in the aspect of three-dimensional application, simultaneously through setting up the LED lamp plate as the backlight on one side of the back at the LCD display screen, it is shaded to reach the high bright constant current of backlight, the luminance value is high, the homogeneity is good, and the constant current drive mode can avoid the effect of light source scintillation, and reach even and soft light's effect through setting up.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is an exploded schematic view of an embodiment of the present invention.

Detailed Description

The invention will be further explained with reference to the following figures and examples:

referring to fig. 1 to 2, a light source device for generating stripe light by an LCD includes an LCD display panel 1 for displaying stripe light, a diffusion device 2 disposed on a back surface of the LCD display panel 1, and a high-brightness and constant-current LED lamp panel 3 disposed on a back surface of the diffusion device 2.

The utility model discloses an among the basic scheme, show stripe light through LCD display screen 1, reach the purpose that produces stripe light. The LCD display screen 1 displays the stripe light by transmitting data with the stripe light message to the LCD display screen 1 through the communication circuit provided. Based on this display principle, the effect of changing the stripe light can thus be achieved by modifying the data of the stripe light information. The LED lamp panel 3 is used as a backlight source of the LCD display screen 1, and adopts a high-brightness and constant-current LED lamp, so as to achieve the effects of high brightness value, good uniformity and capability of avoiding light source flicker in a constant-current driving mode. The diffusion device 2 is arranged between the LED lamp panel 3 and the LCD display screen 1 to achieve the effect of blending light from the LED lamp panel 3, so that the backlight of the LCD display screen 1 is more uniform and softer.

In a specific implementation, the diffusion device 2 is preferably a diffusion plate. In the preferred embodiment, a diffuser plate is specifically used as the diffuser 2.

When specifically implementing, as preferred technical scheme, still include light source cavity 4, LCD display screen 1, diffusion device 2 and LED lamp plate 3 all set up in the light source cavity 4, LCD display screen 1 is close to one side border of light source cavity 4, LED lamp plate 3 is close to the opposite side border of light source cavity 4. In this preferred scheme, come to directly provide sufficient interval for LED lamp plate 3 and LCD display screen 1 through setting up light source cavity 4, prevent that the lamp pearl from exposing and improve the homogeneity.

In specific implementation, as a preferable technical solution, a tempered glass plate 5 for supporting the LCD display screen 1 is disposed on the back surface of the diffusion device 2. In this preferred scheme, play the supporting role to LCD display screen 1 through setting up toughened glass board 5, prevent that the middle part of LCD display screen 1 from collapsing.

In specific implementation, as an optimal technical scheme, the LCD display screen 1, the diffusion device 2, the LED lamp panel 3, the light source cavity 4 and the tempered glass plate 5 are rectangular. In the preferred scheme, a specific shape form of the LCD display screen 1, the diffusion device 2, the LED lamp panel 3, the light source cavity 4 and the toughened glass plate 5 is provided.

The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the teachings of the present invention without undue experimentation. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.

Claims

1. The light source device for generating the stripe light through the LCD is characterized by comprising an LCD display screen (1) for displaying the stripe light, wherein a diffusion device (2) is arranged on the back surface of the LCD display screen (1), and an LED lamp panel (3) with high brightness and constant current is arranged on the back surface of the diffusion device (2).

2. A light source device for generating stripe light by LCD according to claim 1, wherein said diffusing means (2) is a diffusing plate.

3. The light source device for generating stripe light by LCD according to claim 2, further comprising a light source cavity (4), wherein the LCD display screen (1), the diffusion device (2) and the LED lamp panel (3) are all disposed in the light source cavity (4), the LCD display screen (1) is close to one side edge of the light source cavity (4), and the LED lamp panel (3) is close to the other side edge of the light source cavity (4).

4. A light source device for producing stripe light by LCD according to claim 3, wherein the back of the diffuser (2) is provided with a tempered glass plate (5) for supporting the LCD display screen (1).

5. The light source device for generating the stripe light through the LCD according to claim 4, wherein the LCD display screen (1), the diffusion device (2), the LED lamp panel (3), the light source cavity (4) and the tempered glass plate (5) are rectangular.