CN212750252U

CN212750252U - Luminous cavity inner wall structure of white light LED digital display screen

Info

Publication number: CN212750252U
Application number: CN202021272577.5U
Authority: CN
Inventors: 郑军; 林嘉磊; 郑夏云; 陈锦; 陈晶
Original assignee: HUANGSHAN GUANGYUAN PHOTOELECTRIC TECHNOLOGY CO LTD
Current assignee: HUANGSHAN GUANGYUAN PHOTOELECTRIC TECHNOLOGY CO LTD
Priority date: 2020-07-02
Filing date: 2020-07-02
Publication date: 2021-03-19
Anticipated expiration: 2030-07-02

Abstract

The utility model discloses a white light LED digital display screen's luminous intracavity wall structure, including moulding the shell, PCB board and LED paster lamp pearl, be located digital display regional figure "8" on the white light LED digital display screen and constitute by seven fields of equal width, mould the shell on correspond position department with seven fields of equal width and be equipped with luminous cavity, the PCB board is fixed in moulds the shell bottom, LED paster lamp pearl is fixed in on the PCB board and is connected with PCB board electricity, luminous cavity is including light-transmitting section and erection section, the light-transmitting section is located erection section top and communicates with the erection section, light-transmitting section diameter is less than the erection section diameter, be formed with the stair structure between light-transmitting section and the erection section, this stair structure is for sheltering from the shoulder, LED paster lamp pearl stretches into the erection section and is located the erection section. The utility model provides a luminous cavity adopts the multistage formula structure, through reflection and the refraction of control yellow light, makes the digital colour of showing of white light LED digital display screen be white, and the colour shows that the uniformity is good.

Description

Luminous cavity inner wall structure of white light LED digital display screen

Technical Field

The utility model belongs to the technical field of the digital display screen of LED technique and specifically relates to a luminous intracavity wall structure of white light LED digital display screen is related to.

Background

An LED Segment display (LED Segment display) is an 8-shaped device formed by packaging a plurality of light emitting diodes together, wherein a white LED digital display screen is a common LED digital tube for displaying white light.

The existing white light LED digital display screen structure comprises a plastic shell 1, a PCB 2 and LED patch lamp beads 3 (shown in figure 3), wherein the number 8 of a digital display area on the white light LED digital display screen is composed of seven fields with equal width, a light-emitting cavity 4 (also called a light-transmitting opening) is arranged at the position, corresponding to the seven fields with equal width, on the plastic shell, the PCB is fixed at the bottom of the plastic shell, the LED patch lamp beads are fixed on the PCB and are electrically connected with the PCB, the LED patch lamp beads are arranged in the light-emitting cavity, and different LED patch lamp beads are lightened by controlling so that the digital display area can display ten Arabic numbers of 0, 1, 2, 3, 4, 5, 6, 7, 8 and 9.

Because LED paster lamp pearl self packaging structure's influence, the luminous intensity of LED paster lamp pearl side is little, the blue light total amount that arouses the fluorescent glue is few, the fluorescent glue energy is higher than the ability of blue light, the colour that leads to LED paster lamp pearl side light source can yellow, and the luminous cavity of current white light LED digital display screen is the through-hole structure big-end-up in diameter, the yellow light that leads to LED paster lamp pearl side takes place to reflect and refract in luminous intracavity, the digital colour that leads to white light LED digital display screen to show is yellow (white pure inadequately), influence the luminous visual effect of display screen.

SUMMERY OF THE UTILITY MODEL

The utility model relates to a solve the yellow light of the LED paster lamp pearl side of current white light LED digital display screen and take place reflection and refraction at luminous intracavity, the digital colour that leads to the digital display screen of white light LED to show yellows (white is pure inadequately), influence the problem of the luminous visual effect of display screen, it is ingenious to provide a structure, can control the refraction and the reflection of LED paster lamp pearl side yellow light, the white that makes the figure show is more pure, the colour shows the uniformity good, can improve the luminous visual effect's of display screen white light LED digital display screen's of luminous intracavity wall structure.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a white light LED digital display screen's luminous intracavity wall structure, includes and moulds shell, PCB board and LED paster lamp pearl, is located digital display regional figure "8" on white light LED digital display screen and comprises seven fields of equal width, moulds the shell on with seven fields of equal width correspond the position department and be equipped with luminous cavity, the PCB board is fixed in moulds the shell bottom, LED paster lamp pearl is fixed in on the PCB board and is connected with PCB board electricity, luminous cavity is a through-hole structure, luminous cavity includes light-transmitting section and installation section, light-transmitting section is located the installation section top, and light-transmitting section and installation section intercommunication, and light-transmitting section diameter is less than the installation section diameter, is formed with the stair structure between light-transmitting section and the installation section, and this stair structure is for sheltering from the shoulder, LED paster lamp pearl stretches into the installation section and is located the installation section. The utility model discloses luminous cavity structure to among the white light LED digital display screen has improved, adopt the luminous cavity structure of multistage formula, luminous cavity is including light-transmitting section and erection segment, and light-transmitting section diameter is less than the erection segment diameter, so that can form between light-transmitting section and the erection segment and shelter from the shoulder, shelter from the shoulder and then can shelter from the yellow light of LED paster lamp pearl side, the reflection and the refraction of control yellow light (the unnecessary colour of control reflection light source), the yellow light that the follow light-transmitting section that significantly reduces jets out, thereby make the digital colour of white light LED digital display screen demonstration be white, improve the luminous visual effect of display screen.

Preferably, a light collecting section is arranged between the light transmitting section and the mounting section, the diameter of the light collecting section is smaller than that of the mounting section, and a step structure is formed between the light transmitting section and the mounting section and is a shielding shoulder. The light collecting section is used for concentrating light, can further control the reflection and the refraction of LED paster lamp pearl side yellow light simultaneously, is favorable to improving luminance.

Preferably, the light-transmitting section is a through hole structure with a large diameter at the top and a small diameter at the bottom, and the diameter of the opening at the lower end of the light-transmitting section is equal to the diameter of the light-collecting section. The light transmitting section is of a through hole structure with a large diameter at the top and a small diameter at the bottom, so that a digital display window on the white light LED digital display screen is large, the difference of digital display brightness on the white light LED digital display screen is favorably reduced, and the color display consistency is good.

Preferably, the plastic shell comprises a panel and side walls fixed to the peripheral edges of the panel, and the PCB is located in the side walls and is bonded and fixed to the bottom surface of the panel.

Preferably, the panel and the side wall are of a homogeneous and integral structure.

Preferably, a convex block is formed on the bottom surface of the panel in a downward protruding mode, the lower end openings of the light collecting section, the mounting section and the light transmitting section are located in the convex block, and the PCB is fixedly bonded with the bottom surface of the convex block.

Therefore, the utility model discloses following beneficial effect has: the structure of the light-emitting cavity is improved, the multi-section light-emitting cavity structure is adopted, and the yellow light emitted from the light-transmitting section is greatly reduced by controlling the reflection and refraction of the yellow light (controlling the redundant color of the reflected light source), so that the color of the displayed number of the white-light LED digital display screen is white, the color display consistency is good, and the light-emitting visual effect of the display screen can be improved.

Drawings

Fig. 1 is a schematic diagram of an internal structure of the present invention.

Fig. 2 is a partially enlarged view of a portion a in fig. 1.

Fig. 3 is a schematic diagram of an internal structure of a conventional white LED digital display screen.

In the figure: mould shell 1, PCB board 2, LED paster lamp pearl 3, luminous chamber 4, light-transmitting section 5, installation section 6 shelters from shoulder 7, light-collecting section 8, panel 9, side wall 10, lug 11.

Detailed Description

The invention is further described with reference to the accompanying drawings and the detailed description.

As shown in fig. 1 and 2, the light-emitting cavity inner wall structure of a white LED digital display screen comprises a plastic casing 1, a PCB 2 and LED patch beads 3, wherein a number "8" in a digital display area on the white LED digital display screen is composed of seven fields with equal width, the plastic casing comprises a panel 9 and side walls 10 fixed on the edges of the periphery of the panel, the panel and the side walls are of a homogeneous structure (made of plastic material), a convex block 11 is formed on the bottom surface of the panel in a downward protruding manner, a light-emitting cavity is arranged at a position of the panel corresponding to the seven fields with equal width, the light-emitting cavity comprises a light-transmitting section 5, a light-collecting section 8 and a mounting section 6, the light-transmitting section, the light-collecting section and the mounting section are sequentially arranged from top to bottom and are communicated with each other, the light-transmitting section is a through hole structure with a large diameter at the top, the diameter of an opening at the lower end of the light-transmitting section is equal, this stair structure is for sheltering from shoulder 7, and the lower extreme opening of light-collecting section, installation section and light-transmitting section all is located the lug, and the PCB board is located the side wall and bonds fixedly with the bottom surface of lug, and LED paster lamp pearl is fixed in on the PCB board and is connected with PCB board electricity, and LED paster lamp pearl stretches into the installation section and is located the installation section.

The principle of the utility model is that: after the LED surface-mounted lamp beads in the mounting section emit light, the light is emitted through the mounting section, the light collecting section and the light transmitting section, so that a digital display area on the white-light LED digital display screen can display corresponding Arabic numerals, in the process, yellow light on the edges of two sides of the LED surface-mounted lamp beads can be shielded by the shielding shoulders, the reflection and refraction of the yellow light are controlled (the redundant color of a reflection light source is controlled), the yellow light is emitted from the light transmitting section through the concentration of the light collecting section, the yellow light emitted from the light transmitting section is greatly reduced by controlling the reflection and refraction of the yellow light (the redundant color of the reflection light source is controlled), the color of the displayed numerals of the white-light LED digital display screen is white, the color display consistency is good, and the luminous visual effect of the display screen can be improved.

The above-described embodiment is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and other variations and modifications may be made without departing from the scope of the invention as set forth in the claims.

Claims

1. The utility model provides a white light LED digital display screen's luminous intracavity wall structure, includes and moulds shell (1), PCB board (2) and LED paster lamp pearl (3), is located digital display regional figure "8" on the white light LED digital display screen and comprises seven fields of equal width, and the position department that corresponds with seven fields of equal width on moulding the shell is equipped with luminous cavity, and the PCB board is fixed in moulds the shell bottom, LED paster lamp pearl is fixed in on the PCB board and is connected with PCB board electricity, its characterized in that, luminous cavity is a through-hole structure, and luminous cavity includes light-transmitting section (5) and installation section (6), light-transmitting section is located the installation section top, and light-transmitting section and installation section intercommunication, and light-transmitting section diameter is less than the installation section diameter, is formed with the stair structure between light-transmitting section and the installation section, and this stair structure be for sheltering from shoulder (7), LED paster lamp pearl stretches into the installation section and is located the installation section.

2. The structure of the inner wall of the light-emitting cavity of the digital display screen of white LED as claimed in claim 1, wherein a light-collecting section (8) is disposed between the light-transmitting section and the mounting section, the diameter of the light-collecting section is smaller than that of the mounting section, and a step structure is formed between the light-transmitting section and the mounting section, and the step structure is a shielding shoulder.

3. The digital display screen of claim 2, wherein the light-transmitting section is a through hole structure with a larger diameter at the top and a smaller diameter at the bottom, and the diameter of the opening at the bottom of the light-transmitting section is equal to the diameter of the light-collecting section.

4. The structure of the inner wall of the light-emitting cavity of the digital display screen of white LED in claim 2, wherein the plastic case comprises a panel (9) and a side wall (10) fixed to the peripheral edge of the panel, and the PCB is located in the side wall and is bonded and fixed to the bottom surface of the panel.

5. The digital display screen of white light LED of claim 4 wherein the panel and the side wall are of a homogeneous structure.

6. The digital display screen of white light LED with inner wall structure of light-emitting cavity as claimed in claim 4, wherein the bottom surface of the panel is formed with a protrusion (11) protruding downward, the lower openings of the light collecting section, the mounting section and the light transmitting section are all located in the protrusion, and the PCB board is fixed to the bottom surface of the protrusion by bonding.