CN212749467U - Diffusion film of backlight module - Google Patents
Diffusion film of backlight module Download PDFInfo
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- CN212749467U CN212749467U CN201921851677.0U CN201921851677U CN212749467U CN 212749467 U CN212749467 U CN 212749467U CN 201921851677 U CN201921851677 U CN 201921851677U CN 212749467 U CN212749467 U CN 212749467U
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- silk
- diffusion film
- diffusion barrier
- light source
- glue
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Abstract
The embodiment of the utility model provides a backlight unit's diffusion barrier, through the at least one side at the diffusion barrier in the position silk screen printing one deck printing ink layer that is close to backlight source, or set up the black glue film of one deck to play the effect of shading, make in backlight unit can not the light leak in the diffusion barrier position department that is close to the light source. According to the utility model provides a diffusion barrier, at least one side that diffusion barrier is close to the light source position is through adding the silk screen printing layer or adding the black glue, plays good shading effect, has avoided having partial light source to spill near light source position department at the diffusion barrier, causes backlight unit backlight brightness inhomogeneous, and the problem that the display effect is even has improved user and has used the experience degree.
Description
Technical Field
The embodiment of the utility model provides a but, not limited to show technical field, particularly, relate to but, but not limited to a backlight unit's diffusion barrier.
Background
The backlight module is one of the key components of the liquid crystal display screen, and has the functions of providing a sufficient light source with uniform brightness and distribution for the liquid crystal display screen to enable the liquid crystal display screen to normally display images, the other light source is a light source positioned behind the liquid crystal display screen, the luminous effect of the other light source directly influences the visual effect of the liquid crystal display module, the liquid crystal is not luminous, and the displayed graph or character is the result of modulating light by backlight. Therefore, the role played by the backlight in the display device is very important.
The diffusion film plays a role in providing a uniform surface light source for the backlight module, and the light intensity at the position close to the backlight source is the maximum, so that the brightness of the diffusion film in the whole backlight is uniformly distributed, and a small part of light cannot leak out, which is a problem to be solved urgently.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a pair of backlight unit's diffusion barrier, the main technical problem who solves is that diffusion barrier is close to backlight position luminance distribution inhomogeneous in being shaded, has the fractional light to spill, from the problem that causes the display screen display effect to reduce.
In order to solve the above technical problem, an embodiment of the utility model provides a backlight unit's diffusion barrier:
at least one surface of the diffusion film is provided with a silk screen printing layer or a rubberizing layer close to a backlight source.
Optionally, the silk-screen printing layer is a silk-screen printing ink layer.
Optionally, the color of the ink layer is one of black, gray, or white.
Optionally, the adhesive layer is black adhesive.
Optionally, the black glue is a glue on one side or a glue-free glue on both sides.
Wherein, the black glue is a glue surface on one surface covering the diffusion film.
The utility model has the advantages that:
according to the embodiment of the utility model provides a backlight unit's diffusion barrier, through at least one side at the diffusion barrier be close to the silk screen printing layer that the source position set up the silk screen printing in a poor light or set up the rubberizing layer for luminance distribution on the diffusion barrier is even, for being shaded and provide a sufficient, the even surface light source of distribution of luminance, furtherly, has prevented that the light of a small part backlight from spilling from the side of diffusion barrier. Through the utility model provides a diffusion barrier for luminance in a poor light distributes evenly, has improved the display effect that shows the screen, has promoted user's use experience degree.
Other features and corresponding advantages of the invention are set forth in the following part of the specification, and it is to be understood that at least some of the advantages become apparent from the description of the invention
Drawings
Fig. 1A is a schematic structural view of a backlight module according to a first embodiment of the present invention;
fig. 1B is a schematic view of a diffusion film provided with a silk-screen layer on an upper surface thereof according to an embodiment of the present invention;
fig. 1C is a schematic view of a diffusion film having a silk-screen layer on a lower surface thereof according to an embodiment of the present invention;
fig. 1D is a schematic diagram of a diffusion film provided by the embodiment of the present invention, in which the upper surface and the lower surface of the diffusion film are both provided with a silk-screen layer.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the embodiments of the present invention are described in further detail below with reference to the accompanying drawings by way of specific embodiments. It is to be understood that the specific embodiments described herein are for purposes of illustration only and are not to be construed as limitations of the present invention, and that the described embodiments are merely illustrative of some, but not all embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The first embodiment is as follows:
in order to solve the defects that the backlight brightness distribution of the diffusion film at the position close to the light source is not uniform and a small part of light leaks out in the prior art. The utility model provides a backlight unit's diffusion barrier, the at least one side of diffusion barrier is being provided with the silk screen printing layer of silk screen printing or is being provided with the rubberizing layer near the backlight position.
As shown in fig. 1A, the backlight module provided for this example includes a wide diffusion film 10 and other optical films, in this embodiment, a silk-screen layer 101 silk-screened on at least one side of the diffusion film is disposed on a surface of the diffusion film 10 near a light source.
In an example of this embodiment, as shown in fig. 1B, a silk-screen layer 101 is silk-screened on the upper surface of the diffusion film 10 near the light source position, or alternatively, a glue layer is arranged on the upper surface of the diffusion film near the light source position.
In another example of this embodiment, as shown in fig. 1C, a silk-screen layer 101 is silk-screened on the lower surface of the diffusion film 10 near the light source, or an adhesive layer may be disposed on the lower surface of the diffusion film near the light source.
In another example of this embodiment, as shown in fig. 1D, a silk-screen layer 101 is silk-screened on both the upper surface and the lower surface of the diffusion film 10 near the light source, or alternatively, adhesive layers are disposed on both the upper surface and the lower surface of the diffusion film near the light source.
It should be understood that, in this embodiment, the silk-screen layer or the adhesive layer silk-screen printed at the position of the diffusion film close to the light source may be disposed on the upper surface of the diffusion film, or may be disposed on the lower surface of the diffusion film, or may be disposed on both the upper surface and the lower surface of the diffusion film, and may be flexibly selected according to the needs.
In an implementation manner of this embodiment, when a silk-screen layer with a shading effect is silk-screened at a position close to the light source on at least one side of the diffusion film, the silk-screen layer is an ink layer silk-screened on the diffusion film through a silk-screen mechanism. In this embodiment, the thickness of the ink layer for silk-screen printing is not more than 0.01 mm.
It should be understood that the silk-screen layer printed on the diffusion film near the light source is not limited to the ink layer, but may be any other silk-screen substance having a good light-shielding effect and capable of being silk-screened on the diffusion film by the silk-screen mechanism. Of course, the thickness of the silk-screen layer in this embodiment does not exceed 0.01 mm.
In this embodiment, the colour preference of silk screen printing ink layer on the diffusion barrier is black printing ink layer to reach good shading effect, make the even distribution of luminance on the diffusion barrier, provide a sufficient, evenly distributed's of luminance area source for backlight unit. It can be understood that the color of the silk-screen printing ink layer can also be gray or white, and the same effect of shading light can also be achieved.
In an example of this embodiment, when a glue layer with a light-shielding effect is disposed on at least one side of the diffusion film near the light source, the used glue is a black glue with glue on one side or without glue on both sides.
In one example of the present embodiment, a black paste with glue on one side or without glue on both sides is provided on the upper surface of the diffusion film near the light source position.
In another example of the embodiment, a black glue with glue on one side or without glue on two sides is arranged on the lower surface of the diffusion film near the light source.
In another example of this embodiment, a black glue with glue on one side or without glue on both sides is provided on both the upper and lower surfaces of the diffuser film near the light source.
It should be understood that, in this embodiment, when a black glue with glue on one side or without glue on both sides is disposed at a position of the diffusion film near the light source, the black glue may be disposed on an upper surface of the diffusion film, or may be disposed on a lower surface of the diffusion film, or a silk-screen layer or a glue layer may be disposed on both the upper surface and the lower surface of the diffusion film, which may be flexibly selected according to requirements.
In this embodiment, the black glue disposed on at least one surface of the diffusion film at a position close to the light source is a black glue having a glue surface on a surface covering the diffusion film. In the embodiment, the thickness of the black glue arranged on the diffusion film is not more than 0.03 mm. Of course, in the present embodiment, the black glue disposed on the diffusion film may be a black glue having no glue on both sides.
The embodiment of the utility model provides a backlight unit's diffusion barrier sets up the silk screen printing layer of silk screen printing or sets up the rubberizing layer near the source position of being shaded through at least one side at the diffusion barrier for luminance distribution on the diffusion barrier is even, provides a sufficient, the even surface light source of distribution of luminance for being shaded, and furtherly, the light that has prevented a small part of backlight spills from the side of diffusion barrier. Through the utility model provides a diffusion barrier for luminance in a poor light distributes evenly, has improved the display effect that shows the screen, has promoted user's use experience degree.
Example two:
in order to solve the defects that the backlight brightness distribution of the diffusion film at the position close to the light source is not uniform and a small part of light leaks out in the prior art. The utility model provides a backlight unit's diffusion barrier, the at least one side of diffusion barrier is being provided with the silk screen printing layer of silk screen printing near the backlight position.
In this embodiment, a screen printing layer is screen printed on the upper surface of the diffusion film near the light source.
It should be understood that, in this embodiment, the silk-screen layer or the adhesive layer silk-screen printed at the position of the diffusion film close to the light source may be disposed on the upper surface of the diffusion film, or may be disposed on the lower surface of the diffusion film, or may be disposed on both the upper surface and the lower surface of the diffusion film, and may be flexibly selected according to the needs.
In an example of this embodiment, when a silk-screen layer with a shading effect is silk-screened at a position on the upper surface of the diffusion film close to the light source, the silk-screen layer is an ink layer silk-screened on the diffusion film by a silk-screen mechanism. In this embodiment, the thickness of the ink layer for silk-screen printing is not more than 0.01 mm.
It should be understood that the silk-screen layer printed on the diffusion film near the light source is not limited to the ink layer, but may be any other silk-screen substance having a good light-shielding effect and capable of being silk-screened on the diffusion film by the silk-screen mechanism. Of course, the thickness of the silk-screen layer in this embodiment does not exceed 0.01 mm.
In this embodiment, the colour preference of silk screen printing ink layer on the diffusion barrier is black printing ink layer to reach good shading effect, make the even distribution of luminance on the diffusion barrier, provide a sufficient, evenly distributed's of luminance area source for backlight unit. It can be understood that the color of the silk-screen printing ink layer can also be gray or white, and the same effect of shading light can also be achieved.
The embodiment of the utility model provides a backlight unit's diffusion barrier sets up the black printing ink layer of silk screen printing near the source position of being shaded through the upper surface at the diffusion barrier for luminance distribution on the diffusion barrier is even, provides a sufficient, the even area source of distribution of luminance for being shaded, and furtherly, the side of diffusion barrier is followed to the light that has prevented some back light sources from spilling. Through the utility model provides a diffusion barrier for luminance in a poor light distributes evenly, has improved the display effect that shows the screen, has promoted user's use experience degree.
Example three:
in order to solve the defects that the backlight brightness distribution of the diffusion film at the position close to the light source is not uniform and a small part of light leaks out in the prior art. The utility model provides a backlight unit's diffusion barrier, the at least one side of diffusion barrier is being provided with the rubberizing layer near the backlight position.
In this embodiment, a black glue with glue on one side is disposed on the upper surface of the diffusion film near the light source position.
It should be understood that, in the present embodiment, when the black glue with glue on one side is disposed at a position of the diffusion film close to the light source, the black glue with glue on one side may be disposed on the upper surface of the diffusion film, or may be disposed on the lower surface of the diffusion film, or may be disposed on both the upper surface and the lower surface of the diffusion film, and may be flexibly selected according to the needs.
In this embodiment, the black glue disposed on the upper surface of the diffusion film at a position close to the light source is a black glue having a glue surface on a surface covering the diffusion film. In the embodiment, the thickness of the black glue arranged on the diffusion film is not more than 0.03 mm.
The embodiment of the utility model provides a backlight unit's diffusion barrier sets up the black glue near the source position of being shaded through the upper surface at the diffusion barrier for luminance distribution on the diffusion barrier is even, provides a sufficient, the even area source of distribution of luminance for being shaded, and further, the side of diffusion barrier is spilt to the light that has prevented a small part backlight. Through the utility model provides a diffusion barrier for luminance in a poor light distributes evenly, has improved the display effect that shows the screen, has promoted user's use experience degree.
The foregoing is a more detailed description of embodiments of the present invention, and the specific embodiments are not to be considered in a limiting sense. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.
Claims (6)
1. The diffusion film of the backlight module is characterized in that a silk screen printing layer of silk screen printing or a rubberizing layer is arranged on the upper surface and the lower surface of the diffusion film at positions close to a backlight source.
2. The diffuser film for a backlight unit of claim 1, wherein the silk-screen layer is a silk-screen ink layer.
3. The diffuser film for a backlight module as set forth in claim 2, wherein the ink layer is one of black, gray or white in color.
4. The diffusion film of claim 1, wherein the adhesive layer is black glue.
5. The diffuser film of claim 4, wherein the black glue is one-sided glue or two-sided glue-free.
6. The diffuser of claim 5, wherein the black glue has a glue surface on a surface covering the diffuser.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921851677.0U CN212749467U (en) | 2019-10-30 | 2019-10-30 | Diffusion film of backlight module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921851677.0U CN212749467U (en) | 2019-10-30 | 2019-10-30 | Diffusion film of backlight module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212749467U true CN212749467U (en) | 2021-03-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921851677.0U Active CN212749467U (en) | 2019-10-30 | 2019-10-30 | Diffusion film of backlight module |
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|---|---|
| CN (1) | CN212749467U (en) |
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2019
- 2019-10-30 CN CN201921851677.0U patent/CN212749467U/en active Active
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