CN218728483U - Visual angle controllable backlight source - Google Patents
Visual angle controllable backlight source Download PDFInfo
- Publication number
- CN218728483U CN218728483U CN202222644558.6U CN202222644558U CN218728483U CN 218728483 U CN218728483 U CN 218728483U CN 202222644558 U CN202222644558 U CN 202222644558U CN 218728483 U CN218728483 U CN 218728483U
- Authority
- CN
- China
- Prior art keywords
- light
- angle
- backlight
- peep
- frame body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Mirrors, Picture Frames, Photograph Stands, And Related Fastening Devices (AREA)
Abstract
The utility model discloses a controllable visual angle backlight, the fruit pick-up device comprises a frame body, the bottom veneer is connected with the reflectance coating in the framework, and the reflectance coating top is provided with the lantern light board, the blooming has been laid at lantern light board top, and blooming top edge glues the veneer through the mouth and is connected with the peep-proof membrane, peep-proof membrane top surface is located same level with framework top surface. The utility model relates to a controllable visual angle backlight, according to the supporting output of the secret angle demand of product with the light of angle, reduce the angle light that makes not need see very weak or all there is not, can not see the transmission of light and see unclear picture in the demonstration department, play the effect of peep-proof, and, because light output angle can be controlled, so light can not be hindered the shelves and absorbed, thereby guarantee the luminance of this backlight, be fit for being extensively promoted and used.
Description
Technical Field
The utility model relates to a backlight technical field, in particular to controllable visual angle backlight.
Background
Backlight is a form of illumination commonly used on LCD displays, and is different from front-light in that it is side-or back-illuminated, which is used to increase the illumination in low-light environments and brightness on computer monitors, LCD screens, and to produce light in a manner similar to CRT displays.
Patent application No. 201920962977.X discloses a backlight structure of integration of backlight high accuracy, can avoid the light diffusion of cold cathode fluorescent lamp effectively, when guaranteeing for the light rate, also be favorable to the integrated installation of device, the setting of recess simultaneously also avoids the light guide plate can rip cold cathode fluorescent lamp under high temperature.
The conventional backlight source can perform angle control from the transformation to the light output on the basis of the traditional backlight source, but in the technology, part of light is absorbed by a barrier, so that the brightness of the light source is reduced more.
SUMMERY OF THE UTILITY MODEL
The main objective of the present invention is to provide a viewing angle controllable backlight source, which can effectively solve the problems in the background art.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a controllable visual angle backlight source comprises a frame body, wherein a reflecting film is connected to the bottom in the frame body in a gluing mode, a light plate is arranged on the top of the reflecting film, an optical film is laid on the top of the light plate, an anti-peeping film is connected to the edge of the top of the optical film in a gluing mode through a piece of gum, and the top surface of the anti-peeping film and the top surface of the frame body are located at the same horizontal height; the frame body can play a good protection role to the internal components.
Furthermore, a fixing groove is formed in the surface of the bottom of the frame body, a spring is welded in the fixing groove, a rectangular plate is welded at the free end of the bottom of the spring, the top of the rectangular plate is located in the fixing groove, and the bottom of the rectangular plate is located outside the fixing groove; the springs are distributed in the fixing grooves at equal intervals, so that the rectangular plate is stressed uniformly.
Further, fixed threaded holes are formed in corners of the top of the frame body.
Further, the bottom of the rectangular plate is connected with a rubber pad in a gluing mode.
Furthermore, the frame body is a rubber frame, and the outer side of the light panel is connected with the frame body through screws.
Compared with the prior art, the utility model discloses following beneficial effect has:
the backlight source product with the controllable angle is provided for the terminal display device, the light rays with the same angle are output in a matched mode according to the confidential angle requirement of the product, the light rays with the angle which are not required to be seen are reduced, the light rays with the angle which are not required to be seen are very weak or all dull, the picture cannot be seen clearly due to the fact that the light rays cannot be transmitted in the display position, the peeping preventing effect is achieved, in addition, the light rays can not be blocked and absorbed due to the fact that the light ray output angle can be controlled, and therefore the brightness of the backlight source is guaranteed.
Drawings
Fig. 1 is a schematic view of an overall structure of a viewing-angle-controllable backlight according to the present invention.
Fig. 2 is a schematic cross-sectional view of a viewing-angle-controllable backlight according to the present invention.
Fig. 3 is a schematic structural view of a spring and a rectangular plate of a viewing-angle-controllable backlight according to the present invention.
Fig. 4 is a schematic diagram of a part a of an enlarged structure of a backlight source with controllable viewing angle according to the present invention.
In the figure: 1. a frame body; 2. fixing grooves; 3. fixing the threaded hole; 4. a reflective film; 5. a light plate; 6. an optical film; 7. a privacy film; 8. a rubber pad; 9. glue for sealing the mouth; 10. a spring; 11. a rectangular plate.
Detailed Description
In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.
As shown in fig. 1 and 2, a controllable viewing angle backlight source comprises a frame body 1, wherein a reflective film 4 is connected to the bottom of the frame body 1 in a gluing manner, a light plate 5 is arranged on the top of the reflective film 4, an optical film 6 is laid on the top of the light plate 5, an anti-peeping film 7 is connected to the edge of the top of the optical film 6 in a gluing manner through a gutta percha 9, and the top surface of the anti-peeping film 7 and the top surface of the frame body 1 are located at the same horizontal height; the light board 5 is composed of a cathode lamp tube and a board body, the reflecting film 4 can reflect light emitted by the cathode lamp tube, and the peep-proof film 7 changes the wide visual angle of the screen into a narrow visual angle through angle control of the light.
Fixed slot 12 has been seted up on framework 1 bottom surface, and welded spring 10 in the fixed slot 12, the welding of spring 10 bottom free end has rectangular plate 11, and the rectangular plate 11 top is located fixed slot 12, the rectangular plate 11 bottom is located outside fixed slot 12.
In this embodiment, as shown in fig. 2, 3 and 4, after the backlight source is fixed, the rectangular plate 11 will contact with the fixing mechanism, so as to compress the spring 10, and after the spring 10 retracts, a reaction force will be applied to the rectangular plate 11, so that it is tightly attached to the external mechanism, thereby preventing a gap from being generated between the fixed backlight source and the fixing plane, so as to meet the use requirements of the personnel.
And fixing threaded holes 3 are formed in the corners of the top of the frame body 1.
In this embodiment, as shown in fig. 1 and 3, a person can fix the frame body 1 at a corresponding position through the fixing threaded hole 3.
Wherein, the bottom of the rectangular plate 11 is connected with a rubber pad 8 by gluing.
In this embodiment, as shown in fig. 3, the rubber pad 8 has good deformation capability, so that the rectangular plate 11 can be fully contacted and fixed through the rubber pad 8.
The frame body 1 is a rubber frame, and the outer side of the light plate 5 is connected with the frame body 1 through screws.
In this embodiment, as shown in fig. 2, the light plate 5 is fixed to the frame 1, so that it has good stability.
It should be noted that, the utility model relates to a controllable visual angle backlight to framework 1 is the mounting, collocation reflectance coating 4, light board 5, blooming 6, peep-proof membrane 7 and the 9 area of mouth of a word glue constitute peep-proof type backlight, light is by some to the face light source, from positive transmission, control light printing opacity direction by peep-proof membrane 7's angle again, the angle that makes required light has light, the angle that does not need light is shaded or the dull, thereby make the display need not to see clearly the light that the angle is dark or weak, play the effect of peep-proof.
The foregoing shows and describes the basic principles and principal features of the invention, together with the advantages thereof. It should be understood by those skilled in the art that the present invention is not limited by the foregoing embodiments, and the description of the embodiments and the description is only illustrative of the principles of the present invention, without departing from the spirit and scope of the present invention
There are numerous variations and modifications of the invention which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. A controllable viewing angle backlight comprising a frame (1), characterized in that: bottom veneer is connected with reflectance coating (4) in framework (1), and reflectance coating (4) top is provided with light board (5), optical film (6) have been laid at light board (5) top, and optical film (6) top edge glues (9) veneer through the mouth and is connected with peep-proof membrane (7), peep-proof membrane (7) top surface and framework (1) top surface are located same level.
2. A controllable viewing angle backlight as claimed in claim 1, wherein: fixed slot (12) have been seted up on framework (1) bottom surface, and welded spring (10) in fixed slot (12), the welding of spring (10) bottom free end has rectangular plate (11), and rectangular plate (11) top is located fixed slot (12), rectangular plate (11) bottom is located outside fixed slot (12).
3. A controllable viewing angle backlight as claimed in claim 2, wherein: fixed threaded holes (3) are formed in corners of the top of the frame body (1).
4. A controllable viewing angle backlight as claimed in claim 2, wherein: the bottom of the rectangular plate (11) is connected with a rubber pad (8) in a gluing way.
5. A controllable viewing angle backlight as claimed in claim 1, wherein: the frame body (1) is a rubber frame, and the outer side of the light plate (5) is connected with the frame body (1) through screws.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222644558.6U CN218728483U (en) | 2022-10-09 | 2022-10-09 | Visual angle controllable backlight source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222644558.6U CN218728483U (en) | 2022-10-09 | 2022-10-09 | Visual angle controllable backlight source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218728483U true CN218728483U (en) | 2023-03-24 |
Family
ID=85640126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222644558.6U Active CN218728483U (en) | 2022-10-09 | 2022-10-09 | Visual angle controllable backlight source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218728483U (en) |
-
2022
- 2022-10-09 CN CN202222644558.6U patent/CN218728483U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP3865593B2 (en) | Transmission type display device | |
| WO2021018192A1 (en) | Terminal device | |
| US11422397B2 (en) | Display assembly and manufacturing method for display assembly | |
| KR101751883B1 (en) | Liquid crystal display device including improved flexible printed circuit connecting structure and method the same | |
| CN202813236U (en) | Light leakage preventing black and white double-sided adhesive tape, backlight module and liquid crystal display device | |
| CN114527599A (en) | Backlight module and liquid crystal display device | |
| WO2024022125A1 (en) | Backlight module, display device and assembled display device | |
| JP2001210127A (en) | Liquid crystal display(lcd) module | |
| CN218728483U (en) | Visual angle controllable backlight source | |
| WO2022032738A1 (en) | Backlight module and display device | |
| CN106814499A (en) | Transmitting/reflecting LCD | |
| WO2019127755A1 (en) | Led light source, side entry-type backlight module and liquid crystal display device | |
| US20160225324A1 (en) | Display Device | |
| WO2021208477A1 (en) | Backlight module and display device | |
| CN110018594B (en) | Backlight module and display module | |
| CN209842281U (en) | Full-screen display module | |
| CN210488183U (en) | Display module group of increase visual angle polaroid | |
| CN101696780B (en) | Backlight module, plat panel display and design method of positioning element of flat panel display | |
| CN211014916U (en) | Energy-saving L CM liquid crystal display module | |
| WO2020237843A1 (en) | Display device | |
| WO2020093580A1 (en) | Panel middle frame, display panel, and display device | |
| CN218675596U (en) | Backlight module without dark space, display panel and terminal | |
| CN216387675U (en) | Direct type backlight module and display equipment | |
| WO2024113158A1 (en) | Backlight assembly, display panel and display device | |
| CN216647026U (en) | Narrow frame structure in a poor light |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |