CN210038401U - Direct type liquid crystal display backlight module and display equipment - Google Patents
Direct type liquid crystal display backlight module and display equipment Download PDFInfo
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- CN210038401U CN210038401U CN201920979321.9U CN201920979321U CN210038401U CN 210038401 U CN210038401 U CN 210038401U CN 201920979321 U CN201920979321 U CN 201920979321U CN 210038401 U CN210038401 U CN 210038401U
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- led lamp
- liquid crystal
- crystal display
- backlight module
- display backlight
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Abstract
The utility model discloses a straight following formula liquid crystal display backlight unit, including LED lamp pearl, insulating substrate, the last printing of insulating substrate has the circuit, LED lamp pearl distributes on the circuit, at each the surface of LED lamp pearl is provided with a LED lamp pearl hood, is provided with a light diffusion equipment on the array surface that LED lamp pearl hood is constituteed. The utility model also provides a display device adopts foretell straight following formula liquid crystal display backlight unit. The circuit of the utility model is completely and directly printed on the insulating substrate, which can improve the heat dissipation effect; insulating ink is used as the reflector plate, so that the material of the reflector plate is reduced, and the cost is effectively reduced; the lamp bead straw hat with the arc-shaped and polygonal structures is adopted, so that light generated by the LED lamp beads is more uniform, and the display effect is better.
Description
Technical Field
The utility model belongs to the LED shows the field, and more specifically says, relates to a straight following formula liquid crystal display backlight unit and display device.
Background
With the development of display technology, the frequency of use of display screens is higher and higher, and large-size and ultra-large-size display screens gradually enter the consumer market, but the problems of high price, poor display effect and the like of large-size liquid crystal screens are gradually revealed, and therefore, an effective solution is needed.
The patent with the publication number of CN204437831U, namely 2015, 7/1, discloses a technical scheme, which comprises a bottom plate, a reflecting component, a diffusion plate and a fixed bracket, wherein a plurality of light source modules with high brightness and high heat dissipation are arranged between the bottom plate and the reflecting component; the device also comprises a brightening component for brightening the light source and a diffusion component for secondarily diffusing the light. The technical scheme provides a high-brightness display.
The publication date is 2015, 12 months and 30 days, the publication number is CN105204107A, and the patent named as the liquid crystal display device and the backlight module thereof discloses another technical scheme, which comprises a frame body and a light guide plate, a plurality of light source assemblies and an optical film assembly in the frame body, wherein a plurality of first through holes with the same number as the light source assemblies are formed in the light guide plate in an array mode, each light source assembly comprises a light source fixing part with an annular side wall and a plurality of LED lamp beads fixed on the surface of the side wall of the light source fixing part, and the light source fixing part is inserted into the first through holes. This patent also discloses a liquid crystal display device. The light source subassembly is set up to the light source fixed part that has annular lateral wall, the lateral wall surface mounting of light source fixed part has many LED lamp pearls, the array is the same with light source subassembly quantity first through-hole on the light guide plate, the light source fixed part is inserted and is located in the first through-hole, light that LED lamp pearl sent jets into to the light guide plate along 360 inner wall of first through-hole in, this kind of design has the advantage of side income formula income light and straight following formula income light concurrently, can satisfy the demand of ultra-thin design and regional design of adjusting luminance simultaneously.
The utility model provides another kind of new different technical scheme.
Disclosure of Invention
1. Problems to be solved
To current jumbo size LCD screen high price, show inhomogeneous scheduling problem, the utility model provides a straight following formula liquid crystal display backlight unit and display device.
2. Technical scheme
In order to solve the above problem, the utility model discloses the technical scheme who adopts as follows: the utility model provides a straight following formula liquid crystal display backlight unit, includes LED lamp pearl, insulating substrate, the last circuit that is printed of insulating substrate, LED lamp pearl distributes on the circuit, at each the surface of LED lamp pearl is provided with a LED lamp pearl hood, is provided with a light diffusion equipment on the array surface that LED lamp pearl hood is constituteed. The circuit is directly printed on the insulating substrate, so that the heat dissipation effect can be effectively improved, and each LED lamp bead is provided with an LED lamp bead straw cap, so that light generated by the LED lamp beads is more uniform.
Further, the cross section of the LED lamp bead straw hat is of an arc structure or a polygonal structure.
Further, the sides of the polygonal structure are formed by a plurality of trapezoids.
Furthermore, the surface of the insulating substrate is provided with an insulating layer which is a light reflecting layer. The insulating layer on the insulating substrate has a light reflecting function and can be used as a light reflecting layer, so that the material of a reflector plate is reduced, and the cost is effectively reduced.
Further, the insulating layer is formed by coating mirror ink, polyester resin, epoxy resin, or methyl cellulose on the substrate of the insulating substrate.
Further, the insulating layer is formed of a PET, PC, PMMA film or a phenolic plastic.
Further, the light diffusion device is a diffusion plate or a diffusion film.
Furthermore, a brightness enhancement film is arranged on the surface of the light diffusion device.
The utility model provides a display device has adopted foretell straight following formula liquid crystal display backlight unit the surface mounting of brightness enhancement piece has liquid crystal display panel simultaneously.
Furthermore, inward bent parts are symmetrically arranged on the upper portion of the insulating substrate, a cavity is formed by the bent parts and the surfaces of the brightness enhancement films, and the liquid crystal panel is arranged in the accommodating cavity. The design can directly clamp the liquid crystal panel on the upper part of the insulating substrate, thereby being convenient for installation.
3. Advantageous effects
Compared with the prior art, the beneficial effects of the utility model are that:
(1) the circuit of the utility model is completely and directly printed on the insulating substrate, which can effectively improve the heat dissipation effect;
(2) the insulating layer in the utility model is used as a reflecting layer, which reduces the material of the reflecting sheet and effectively reduces the cost;
(3) the utility model adopts the lamp bead straw hat with the arc-shaped or polygonal cross section, so that the light generated by the LED lamp bead is more uniform, and the display effect is better;
(4) the utility model discloses well simple structure realizes easily.
Drawings
Fig. 1 is a schematic structural diagram of a display device according to the present invention;
FIG. 2 is a schematic diagram of a lamp bead layout structure of the backlight module of the present invention;
fig. 3 is a cross-sectional view of a single lamp bead of the backlight module of the present invention (the cross-section of the straw hat of the LED lamp bead is arc);
fig. 4 is a cross-sectional view of a single lamp bead of the backlight module of the present invention (the cross-section of the straw hat of the LED lamp bead is one of the polygonal structures);
fig. 5 is a cross-sectional view of a single lamp bead of the backlight module of the present invention (the cross-section of the straw hat of the LED lamp bead is a second polygonal structure);
in the figure: 1: a substrate; 1.1: a horizontal portion; 1.2: a vertical portion; 1.3: a bending section; 2: an insulating layer; 3: an LED circuit; 4: LED lamp beads; 5: LED lamp bead straw hat; 6: a light diffusing device; 7: a brightness enhancement film; 8: a liquid crystal panel.
Detailed Description
The present invention will be further described with reference to the following specific embodiments.
As shown in fig. 1 and 2, the utility model discloses an insulating substrate, LED circuit 3, LED lamp pearl 4, LED lamp pearl hood 5, light diffusion device 6, brightness enhancement piece 7, insulating substrate includes base plate 1 and insulating layer 2, and base plate 1 is the base plate of aluminium base plate or other materials, and base plate 1 includes horizontal part 1.1, vertical portion 1.2 and kink 1.2, horizontal part 1.1 and the vertical portion 1.2 that its bilateral symmetry set up form a holding cavity, and this holding cavity can hold LED lamp pearl 4, LED lamp pearl hood, light diffusion device 6 and brightness enhancement piece 7; the vertical part 1.2 is respectively connected with a bending part 1.3, the bending parts 1.3 are arranged inwards symmetrically, and the bending parts 1.3 at two sides and the upper surface of the brightness enhancement sheet 7 form a cavity with a width wider than that of the horizontal part 1.1.
The surface of the horizontal part 1.1 of the substrate 1 is covered with an insulating layer 2 formed by an insulating material in a printing, spraying or coating mode, the surfaces of the vertical part 1.2 and the bending part 1.3 can form the insulating layer 2 by the same method or can not be provided with the insulating layer 2, the insulating material can be a mirror ink material, a polyester resin material, an epoxy resin material and a methyl cellulose material, or the surface of the substrate 1 can be adhered with the insulating layer 2 made of insulating materials such as PET, PC, PMMA or other plastics, phenolic plastics and the like, as long as the surface of the substrate 1 has insulating property, the insulating layer 2 not only plays a role of protecting a circuit, but also can be used as a reflecting layer, has a reflecting effect and can greatly improve the optical utilization rate; and the material of the reflector plate is reduced, and the cost is effectively reduced.
The utility model discloses provide a display device who has adopted above-mentioned backlight unit simultaneously, as shown in fig. 1, including display module's liquid crystal display panel 8 has just constituteed a display device on the brightness enhancement piece 7, and this kind of display device has good display effect. The base plate 1 is an integrated structure, a horizontal part 1.1 of the base plate 1 and a vertical part 1.2 symmetrically arranged on two sides of the horizontal part form a containing cavity, and the containing cavity contains an LED lamp bead 4, an LED lamp bead straw hat 5, a light diffusion device 6 and a brightness enhancement sheet 7. When the installation, place liquid crystal display panel 8 in the upper portion of base plate 1, liquid crystal display panel 8 just in time places the surface of the backlight unit of base plate 1 lower part in, and liquid crystal display panel 8 is fixed through kink 1.3 block in the installation, and the installation is simple and convenient.
Claims (10)
1. The utility model provides a straight following formula liquid crystal display backlight unit which characterized in that: the LED lamp comprises LED lamp beads and an insulating substrate, wherein a circuit is printed on the insulating substrate, the LED lamp beads are distributed on the circuit, an LED lamp bead straw cap is arranged on the surface of each LED lamp bead, and a light diffusion device is arranged on the surface of an array formed by the LED lamp bead straw caps.
2. The direct type liquid crystal display backlight module according to claim 1, wherein: the cross section of the LED lamp bead straw hat is of an arc structure or a polygonal structure.
3. The direct type liquid crystal display backlight module according to claim 2, wherein: the sides of the polygonal structure are formed by a plurality of trapezoids.
4. The direct type liquid crystal display backlight module according to claim 1, 2 or 3, wherein: the surface of the insulating substrate is provided with an insulating layer which is a reflecting layer.
5. The direct type liquid crystal display backlight module according to claim 4, wherein: the insulating layer is formed by coating mirror ink, polyester resin, epoxy resin, or methyl cellulose on a substrate of an insulating substrate.
6. The direct type liquid crystal display backlight module according to claim 4, wherein: the insulating layer is formed of a PET, PC, PMMA film or a phenolic plastic.
7. The direct type liquid crystal display backlight module according to claim 1, 2 or 3, wherein: the light diffusion device is a diffusion plate or a diffusion film.
8. The direct type liquid crystal display backlight module according to claim 1, 2 or 3, wherein: the surface of the light diffusion device is also provided with a brightness enhancement film.
9. A display device characterized by: the direct type liquid crystal display backlight module according to claim 8 is adopted, and a liquid crystal panel is arranged on the surface of the brightness enhancement film.
10. The display device according to claim 9, wherein: the upper part of the insulating substrate is symmetrically provided with inward bent parts, the bent parts and the surfaces of the brightness enhancement films form a cavity, and the liquid crystal panel is arranged in the accommodating cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920979321.9U CN210038401U (en) | 2019-06-25 | 2019-06-25 | Direct type liquid crystal display backlight module and display equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920979321.9U CN210038401U (en) | 2019-06-25 | 2019-06-25 | Direct type liquid crystal display backlight module and display equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210038401U true CN210038401U (en) | 2020-02-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920979321.9U Active CN210038401U (en) | 2019-06-25 | 2019-06-25 | Direct type liquid crystal display backlight module and display equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210038401U (en) |
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2019
- 2019-06-25 CN CN201920979321.9U patent/CN210038401U/en active Active
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