CN205333899U - Novel diffusion barrier and backlight unit thereof - Google Patents
Novel diffusion barrier and backlight unit thereof Download PDFInfo
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- CN205333899U CN205333899U CN201521085166.4U CN201521085166U CN205333899U CN 205333899 U CN205333899 U CN 205333899U CN 201521085166 U CN201521085166 U CN 201521085166U CN 205333899 U CN205333899 U CN 205333899U
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Abstract
The utility model discloses a novel diffusion barrier and backlight unit thereof, including light guide plate, light source, reflectance coating, blooming material, diffusion barrier, the diffusion barrier includes this tagma (1) and (2) two parts of coating layer, and wherein coating layer (2) are in two long limits in this tagma of diffusion barrier (1) reach the minor face of light source end dorsad, the utility model discloses the diffusion barrier passes through the effectual backlight unit side bright line problem of having improved of coating sclerosis type polyurethane series response type hot melt adhesive (PUR) to improved the optics quality, and simple structure, practicality.
Description
Technical field
This utility model relates to backlight Display Technique field, especially relates to a kind of novel diffusion barrier and backlight module thereof。
Background technology
The requirement of Current electronic industry maturation and user all the more, cause that backlight module more trends towards narrow frame, ultra-thin, highlighted, the requirement of the quality of backlight module backlight is also more and more higher, side bright line problem also becomes a big problem of backlight quality, and backlight is improve side bright line problem by optimization film material design greatly, now backlight module is by increasing the bonding area of diffusion barrier and film material or preventing side bright line by three limit inkings, and when current backlight module edge is more and more narrow, when structure limits, this demand of bonding area expanded between diffusion barrier and film material cannot be met, and inking is because of ink particle shape solid, there is dry linting, technique is bad also easily there is the three limits phenomenon caused not of uniform size simultaneously, strong influence production efficiency and optical quality, now by dark for the coating of backlight diffusion edge glue, it is particularly important that namely this structure is used for improving side bright line problem。
Summary of the invention
This utility model provides a kind of novel diffusion barrier and backlight module thereof, to add method and the three limit inkings of the bonding area between atherosclerotic type Polyurethane Reactive hot melt adhesive (PUR) replacement expansion diffusion barrier and film material, become another outlet solving side bright line, effectively improve backlight diffusion and the problem of four limit bright lines, be greatly improved optical quality。
For solving above-mentioned technical problem, this utility model be employed technical scheme comprise that。
A kind of novel diffusion barrier and backlight module thereof, including light guide plate, light source, reflectance coating, optical film material, diffusion barrier, it is characterized in that, described diffusion barrier includes body zone (1) and (2) two parts of coating layer, described coating layer (2) is moisture-curable type polyurethane serial reaction type PUR (PUR), is coated on two long limits of described diffusion barrier body zone (1) and a minor face by ultra-fine dispensing technology。
Preferably, described PUR is dark。
Preferably, described coating layer (2) thickness is less than or equal to 0.12mm。
The beneficial effects of the utility model are, by at two long limits of diffusion barrier and a dark PUR glue-line of short slab coating, original diffusion barrier sheet material layers is substituted with dark PUR glue-line, utilize this optical property of PUR extinction and good cementability and toughness to improve bond effect, effectively solve the bright line problem of surrounding side。
Accompanying drawing explanation
Fig. 1 is diffusion barrier structural representation of the present utility model。
Detailed description of the invention
By the examples below, and in conjunction with accompanying drawing, the technical solution of the utility model is further described in detail, it will be appreciated that the case that is preferable to carry out described herein is merely to illustrate and explains this utility model, and need not with restriction this utility model。
Fig. 1 is the structural representation of the diffusion barrier of a kind of novel diffusion barrier of this utility model and backlight module thereof。As shown in Figure 1, a kind of novel diffusion barrier and backlight module thereof, including light guide plate, light source, reflectance coating, optical film material, diffusion barrier, it is characterized in that, described diffusion barrier includes body zone (1) and (2) two parts of coating layer, described coating layer (2) is moisture-curable type polyurethane serial reaction type PUR (PUR), is coated on two long limits of described diffusion barrier body zone (1) and a minor face by ultra-fine dispensing technology。
Further, described PUR is dark。
Further, described coating layer (2) thickness is less than or equal to 0.12mm。
This utility model adopts dispensing technology coating PUR dark color glue, utilizes the photo absorption performance of dark glue, and the extinction when light is refracted to sideline, thus effectively reducing side bright line problem；Meanwhile, good for PUR caking property and toughness, it is ensured that the firm effect of coating layer, thus improve optical quality, and simple in construction, practicality, improve production efficiency。
This utility model this utility model illustrates embodiment of the present utility model and structure by above-described embodiment; but this patent is not limited to above-mentioned embodiment; all employings and this utility model analog structure realize all modes of this utility model purpose, all within protection domain of the present utility model。
Claims (3)
1. a novel diffusion barrier and backlight module thereof, including light guide plate, light source, reflectance coating, optical film material, diffusion barrier, it is characterized in that, described diffusion barrier includes body zone (1) and (2) two parts of coating layer, described coating layer (2) is moisture-curable type polyurethane serial reaction type PUR (PUR), is coated on two long limits of described diffusion barrier body zone (1) and a minor face by ultra-fine dispensing technology。
2. the novel diffusion barrier of one according to claim 1, it is characterised in that described PUR is dark。
3. the novel diffusion barrier of one according to claim 1, it is characterised in that described dark glue coating layer (2) thickness is less than or equal to 0.12mm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521085166.4U CN205333899U (en) | 2015-12-24 | 2015-12-24 | Novel diffusion barrier and backlight unit thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521085166.4U CN205333899U (en) | 2015-12-24 | 2015-12-24 | Novel diffusion barrier and backlight unit thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205333899U true CN205333899U (en) | 2016-06-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201521085166.4U Active CN205333899U (en) | 2015-12-24 | 2015-12-24 | Novel diffusion barrier and backlight unit thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN205333899U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020232754A1 (en) * | 2019-05-21 | 2020-11-26 | 武汉华星光电技术有限公司 | Display module and electronic device |
| CN112871602A (en) * | 2020-12-08 | 2021-06-01 | 深圳市长松科技有限公司 | Coating process and optical diffusion film |
-
2015
- 2015-12-24 CN CN201521085166.4U patent/CN205333899U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020232754A1 (en) * | 2019-05-21 | 2020-11-26 | 武汉华星光电技术有限公司 | Display module and electronic device |
| CN112871602A (en) * | 2020-12-08 | 2021-06-01 | 深圳市长松科技有限公司 | Coating process and optical diffusion film |
| CN112871602B (en) * | 2020-12-08 | 2024-04-16 | 深圳市长松科技有限公司 | Coating process and optical diffusion film |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |