CN213814142U - Reflecting cup type hud backlight system - Google Patents
Reflecting cup type hud backlight system Download PDFInfo
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- CN213814142U CN213814142U CN202022497570.XU CN202022497570U CN213814142U CN 213814142 U CN213814142 U CN 213814142U CN 202022497570 U CN202022497570 U CN 202022497570U CN 213814142 U CN213814142 U CN 213814142U
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Abstract
The utility model discloses a reflection of light cup formula hud backlight system belongs to lighting system technical field. It includes: an LED patch board emitting an LED light source; the light reflecting component is opposite to the LED patch board and is used for collimating and emitting light beams; a light guide cavity opposite to the light reflecting component and guiding the light beam; and an LCD receiving the light transmitted from the light guide cavity; wherein, LED paster board, reflection of light subassembly, leaded light cavity and LCD connect gradually, reflection of light subassembly includes a plurality of reflection of light cups that realize the collimation and assemble to light, reflection of light cup has light inlet and light-emitting window, reflection of light cup's inboard is located light inlet with be equipped with the reflection of light face between the light-emitting window, the reflection of light face has the scale structure of being spliced each other by a plurality of slice scales and forming. Therefore, compare prior art, the utility model discloses be difficult for overheated burnout, the volume is less, the lower advantage of cost.
Description
Technical Field
The utility model relates to a lighting system technical field, concretely relates to reflection of light cup formula hud backlight system.
Background
Automobile windshield formula new line display (HUD) formula can present the display device that drives required information and avoid the driver to need to look over instrument information low on the windshield before the car, has aroused the interest of numerous producers and consumer, and along with the development of HUD design, HUD backlight system requires that low power can provide the even image of hi-lite and require that optical element is small in quantity to the cost is lower. Therefore, the utility model mainly relates to a combination of a squama reflecting cup for use, which can improve the light energy utilization rate and the image uniformity.
The prior art is realized by the following steps: as shown in fig. 1, light emitted by the LED patch (1) is converged by the total reflection optical cavity (2), and then converged by the fresnel lens (4), and the converged light beam enters the LCD screen, so as to finally realize angle control and image light uniformity processing. However, the size of the total reflection optical cavity (2) is large, the patent total reflection optical cavity (2) is produced by splicing four independent reflecting surfaces (3), and finally, a Fresnel lens (4) is added at a light outlet of the optical cavity to perform secondary control on the light ray angle; the defects of the prior art are as follows: HUD backlight mode adopts multiaspect concatenation formula total reflection optical cavity control light beam's angle size and trend more to increase fresnel mirror at the total reflection light outlet and carry out the secondary control of angle, because total reflection optical cavity size is great, LED paster size is less, and is and assembles components and parts, very easily causes the poor and too high and burn out the phenomenon of temperature rise of LCD screen homogeneity this moment, and the design volume is great, and many concatenation formula total reflection optical cavity and fresnel mirror are with higher costs.
Therefore, a new technical solution is needed.
SUMMERY OF THE UTILITY MODEL
The utility model provides a reflection of light cup formula hud backlight system solves the easy overheated burnout that prior art exists, and the volume is great, the higher problem of cost.
In order to achieve the above object, the technical solution of the present invention is that: a reflector hud backlighting system, comprising:
an LED patch board emitting an LED light source;
the light reflecting component is opposite to the LED patch board and is used for collimating and emitting light beams;
a light guide cavity opposite to the light reflecting component and guiding the light beam; and
the LCD receives the light beams transmitted from the light guide cavity;
wherein, LED paster board, reflection of light subassembly, leaded light cavity and LCD connect gradually, reflection of light subassembly includes a plurality of reflection of light cups that realize the collimation and assemble to light, reflection of light cup has light inlet and light-emitting window, reflection of light cup's inboard is located light inlet with be equipped with the reflection of light face between the light-emitting window, the reflection of light face has the scale structure of being spliced each other by a plurality of slice scales and forming.
Preferably, the size of the opening of the light inlet is smaller than the size of the opening of the light outlet, and the aperture of the light reflecting cup gradually increases along the transmission direction of the light beam.
Preferably, the reflective surface has a plurality of scaly nails per week, each scaly nail has a plurality of scaly nails, and the scaly nails in the same segment are equal in size.
Preferably, the surface of the reflecting surface is plated with a reflecting film.
Preferably, the surface of the inner wall of the light guide cavity is plated with a reflecting film.
Compared with the prior art, the utility model has the advantages of as follows: the utility model provides a reflection of light cup formula hud backlight system during operation, the LED light source carries out relative collimation outgoing through reflection of light cup internal surface, and reflection of light cup's surface scale structure has even light characteristic naturally, the light beam after even light reachs the LCD screen through the transmission of leaded light cavity, realize ultimate improvement light energy utilization and image uniformity, reduce the backlight unit device simultaneously, need not the fresnel lens and carry out the secondary control of light angle, effective reduce cost, reduce the occupation volume, also need not many concatenation formula total reflection light cavities, avoid the system overheat to burn out like this. Therefore, compare prior art, the utility model discloses be difficult for overheated burnout, the volume is less, the lower advantage of cost.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic diagram of a prior art structure;
FIG. 2 is a schematic structural view of the present invention;
FIG. 3 is a schematic view of the structure of the reflector assembly 20 of FIG. 2;
fig. 4 is a schematic structural diagram of the reflector cup 50 in fig. 3.
In the figure: 1-LED paster, 2-total reflection optical cavity, 3-reflection of light face, 4-fresnel lens, 10-LED paster board, 20-reflection of light subassembly, 30-leaded light cavity, 40-LCD, 50-reflection of light cup, 510-reflection of light face, 520-scale structure.
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 any creative effort belong to the protection scope of the present invention.
As shown in fig. 1-4, fig. 1 is a schematic diagram of a prior art structure; FIG. 2 is a schematic structural view of the present invention; FIG. 3 is a schematic view of the structure of the reflector assembly 20 of FIG. 2; fig. 4 is a schematic structural diagram of the reflector cup 50 in fig. 3.
The utility model provides a reflection of light cup formula hud backlight system, include:
an LED patch panel 10 emitting an LED light source; the LED patch board 10 is provided with a plurality of LED light-emitting patches, and the LED light-emitting patches emit LED light sources after being electrified.
A light reflecting component 20 opposite to the LED chip board 10 for collimating and emitting light beams; in the optical field, light rays emitted after incident light rays are reflected or refracted by an object are called outgoing light rays. An opposite optical term to the incident ray; collimation: generally speaking, the light rays are kept parallel, and generally the light rays are divergent, that is, two adjacent light rays are separated from each other more and more after propagation. Collimated light emission means controlling and maintaining parallelism between the emitted light rays.
A light guide cavity 30 opposite to the light reflecting member 20 to guide the light beam; the inner wall surface of the light guide cavity is plated with a reflecting film (not shown in the figure). This can improve the efficiency of light energy utilization.
And an LCD40 for receiving the light transmitted from the light guide cavity 30; of course, the system further includes some fixing components, which are not the key points of the present invention, and therefore, redundant description is not repeated here.
Wherein, LED paster board 10, reflection of light subassembly 20, leaded light cavity 30 and LCD40 connect gradually, and reflection of light subassembly 20 includes a plurality of reflection of light cups 50 that realize the collimation and assemble to the light, and reflection of light cup 50 has light inlet and light outlet, and the inboard of reflection of light cup is located and is equipped with reflection of light face 510 between light inlet and the light outlet, and reflection of light face 510 has the scale structure 520 of splicing each other and forming by a plurality of slice scales. The scale structure 520 naturally has a light homogenizing property.
The size of the opening of the light inlet is smaller than that of the opening of the light outlet, and the aperture of the light reflecting cup 50 is gradually increased along the transmission direction of the light beam. This is advantageous for controlling the angle of the light
The reflecting surface is provided with a plurality of sections of scaly nails every week, each section of scaly nail is provided with a plurality of scaly nails, and the scaly nails in the same section are equal in size. The surface of the reflecting surface is plated with a reflecting film (not shown in the figure). This can improve the efficiency of light energy utilization.
During operation, the LED light source carries out relative collimation outgoing through the internal surface of reflection of light cup, and the surperficial scale structure of reflection of light cup has even light characteristic naturally, and the light beam after even light reaches the LCD screen through the transmission of leaded light cavity, realizes ultimate improvement light energy utilization ratio and image uniformity, reduces backlight unit device simultaneously, need not the fresnel lens and carries out the secondary control of light angle, effective reduce cost, reduce and occupy the volume, also need not many concatenation formula total reflection optical cavities, avoid the system overheat to burn out like this.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. A reflector hud backlight system, comprising:
an LED patch board emitting an LED light source;
the light reflecting component is opposite to the LED patch board and is used for collimating and emitting light beams;
a light guide cavity opposite to the light reflecting component and guiding the light beam; and
the LCD receives the light beams transmitted from the light guide cavity;
wherein, LED paster board, reflection of light subassembly, leaded light cavity and LCD connect gradually, reflection of light subassembly includes a plurality of reflection of light cups that realize the collimation and assemble to light, reflection of light cup has light inlet and light-emitting window, reflection of light cup's inboard is located light inlet with be equipped with the reflection of light face between the light-emitting window, the reflection of light face has the scale structure of being spliced each other by a plurality of slice scales and forming.
2. The reflector hud backlight system of claim 1, wherein: the opening size of the light inlet is smaller than that of the light outlet, and the aperture of the light reflecting cup is gradually increased along the transmission direction of the light beam.
3. The reflector hud backlight system of claim 1, wherein: the reflecting surface is provided with a plurality of sections of scaly nails on each week, each section of scaly nail is provided with a plurality of scaly nails, and the sizes of the scaly nails in the same section are equal.
4. The reflector hud backlight system of claim 1, wherein: and a reflecting film is plated on the surface of the reflecting surface.
5. The reflector hud backlight system of claim 1, wherein: and the surface of the inner wall of the light guide cavity is plated with a reflecting film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022497570.XU CN213814142U (en) | 2020-11-02 | 2020-11-02 | Reflecting cup type hud backlight system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022497570.XU CN213814142U (en) | 2020-11-02 | 2020-11-02 | Reflecting cup type hud backlight system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213814142U true CN213814142U (en) | 2021-07-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022497570.XU Active CN213814142U (en) | 2020-11-02 | 2020-11-02 | Reflecting cup type hud backlight system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213814142U (en) |
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2020
- 2020-11-02 CN CN202022497570.XU patent/CN213814142U/en active Active
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