CN209118025U - A kind of diffusion sheet for ultra-narrow frame backlight - Google Patents
A kind of diffusion sheet for ultra-narrow frame backlight Download PDFInfo
- Publication number
- CN209118025U CN209118025U CN201822251662.2U CN201822251662U CN209118025U CN 209118025 U CN209118025 U CN 209118025U CN 201822251662 U CN201822251662 U CN 201822251662U CN 209118025 U CN209118025 U CN 209118025U
- Authority
- CN
- China
- Prior art keywords
- pet
- cloudy surface
- surface screen
- ultra
- black
- 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
Landscapes
- Optical Elements Other Than Lenses (AREA)
Abstract
The utility model discloses a kind of diffusion sheets for ultra-narrow frame backlight, including cloudy surface screen；The cloudy surface screen is a rectangle liquid crystal display, it is in that radian that circular arc line is arranged and it is arranged is identical that angle is held at the cloudy surface screen four, it is equipped with a recess in cloudy surface screen top surface middle position, is provided with one-side band glue black PET in cloudy surface screen top and bottom;The utility model is prejudged by that will spread sheet head secret note, is reduced diffusion-induced stress and is concentrated, can effectively solve to wrinkle in hot test bad, this improvement only improves clicking technique, does not influence Material Cost.
Description
Technical field
The utility model relates to belong to backlight optical membrane material field, risen suitable for improving diffusion high temperature ultra-narrow frame backlight
The bright border problem of wrinkle and ultra-narrow frame backlight.
Background technique
Nowadays, screen concept is fried flourishing comprehensively, but due to the limitation of current techniques, at present comprehensive screen on the market
Mobile phone all only possesses superelevation screen accounting and ultra-narrow frame, and current " screen comprehensively " handset size is increasing, and screen accounting is more next
It is higher, it is higher and higher to mobile phone backlighting requirements.
It is to cover a secret note in diffusion sheet head that backlight, which commonly spreads membrane structure, at present: the thickness of usual diffusion sheet exists
Between 0.05-0.06MM, for common secret note with a thickness of 0.15MM, width is about 0.5 ~ 0.8MM.
The backlight Aspect Ratio of " screen comprehensively " mobile phone is increasing, and 16:9,18:9,19:9,20:9 ..., frame is increasingly
It is narrow, 0.8,0.7,0.6,0.55 ... etc..
With being gradually increased for backlight size, the requirement of backlight thickness is more and more thinner, requires increasingly each membrane material of backlight
Sternly, at large scale mobile phone backlight (5.8 cun or more), when diffusion still continues to use pervious diffusion sheet and covers secret note (one is whole) technique, by
Larger in diffusion sheet thickness and secret note thickness difference, diffusion sheet is easy to generate wrinkling in backlight hot test.
Analysis diffusion corrugation reason: be primarily due to diffusion differ greatly with secret note thickness, in high temperature the two shrinkage rates not
Unanimously, so as to cause diffusion corrugation.By experimental verification, it is small disconnected to cut into 4-5 for the whole secret note that diffusion sheet head is covered
(being only turned off secret note, diffusion sheet is not cut off), secret note prejudge position and need to design between lamp and lamp, can effectively solve to wrinkle
Problem.
In addition, also can solve diffusion corrugation problem by modification secret note composed structure, the common secret note structure that spreads is
PET black film thickness can be thinned to improve corrugation and thicken double-sided adhesive by the double-sided adhesive of the PET black film+0.025MM of 0.125MM
Thickness, common thickness of arranging in pairs or groups have 0.1MM+0.05MM.
Bright border problem for neat Liu Haiping ultra-narrow frame backlight is always the priority and difficulty of light guide plate supplier processing.Though
Right light guide plate can more effectively solve two sides bright border by V-CUT technique, but bright border remains difficult to handle at the abnormity of tail portion.Work as back
When the narrow frame of light tail portion (frame about 0.7MM), consider backlight reliability test, design light-guide edge with a distance from V.A about
0.1MM, bright border light guide plate in tail portion is difficult to handle at this time, if pressing backlight conventional design, backlight tail portion bright border can not be completely disappeared, if
Client can not receive tail portion bright border, can be (black by increasing by the black glue of 0.01 MM thickness *, 0.2 MM wide at diffusion anomaly
Ink), light-guide edge bright line is covered by black glue (tusche), to solve the problems, such as bright border.
If two sides frame is narrow, light guide plate shape only has 0.03-0.05MM from V.A, harsh for requiring bright border
Client can respectively increase by the black glue (tusche) of 0.01 MM thickness *, 0.15 MM wide by spreading both sides.
Increasing black glue is to paste clicking technique, and common black glue material has S110BT, and increase tusche is silk-screen blanker
Skill, common tusche material have ODP-8804.
Due to the thickness and width very little of black glue (tusche), after experimental test, on backlight reliability test without influence.
Utility model content
Purpose of the utility model is to solve disadvantages existing in the prior art, and the one kind proposed is visited with radar
The multifunctional blind walking stick of road function.
To achieve the goals above, the utility model adopts the technical scheme that
A kind of diffusion sheet for ultra-narrow frame backlight, including cloudy surface screen；The cloudy surface screen is a rectangle liquid crystal display
Screen, it is in that radian that circular arc line is arranged and it is arranged is identical that angle is held at the cloudy surface screen four, among cloudy surface screen top surface
Position is equipped with a recess, is provided with one-side band glue black PET in cloudy surface screen top and bottom;
The one-side band glue black PET includes three-decker；
The three-decker is respectively PET black film, adhesive layer and the transparent release film of PET from top to bottom；
Above adhesive layer, the transparent release film of PET is covered below adhesive layer the PET black plastic mulching.
Further, the shape of the recess is inverted trapezoidal.
Further, the one-side band glue black PET setting is in cloudy surface screen top surface or so circular arc and intermediate recesses, setting
General thickness be 0.20MM, error is in 0.08MM.
Further, the one-side band glue black PET setting is 0.60MM in cloudy surface screen bottom thickness, and error is
0.15MM。
Further, the transparent release film thickness of the PET is in 0.038MM.
Compared with prior art, the utility model beneficial effect achieved is: being added by optimization to diffusion sheet secret note
Work and optimization diffusion secret note structure can effectively solve diffusion secret note and wrinkle bad phenomenon in high temperature experiment, while by expanding
Black glue (ink) Lai Gaishan backlight bright border problem of 0.01*20MM is added in discrete piece；
Prejudged by the way that sheet head secret note will be spread, reduces diffusion-induced stress and concentrate, can effectively solve in hot test
It wrinkles bad, this improvement only improves clicking technique, does not influence Material Cost.
Detailed description of the invention
Attached drawing is used to provide a further understanding of the present invention, and constitutes part of specification, practical with this
Novel embodiment is used to explain the utility model together, does not constitute limitations of the present invention.In the accompanying drawings:
Fig. 1 is a kind of diffusion sheet structural schematic diagram for ultra-narrow frame backlight of the utility model；
Fig. 2 is the diffusion sheet operating process schematic diagram for ultra-narrow frame backlight of the utility model；
In figure: cloudy surface screen 1, recess 11, one-side band glue black PET 2, PET black film 21, adhesive layer 22, PET are transparent release
Film 23.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Technical solution provided by the utility model referring to FIG. 1-2: a kind of diffusion sheet for ultra-narrow frame backlight, packet
Include cloudy surface screen 1；The cloudy surface screen 1 is a rectangle liquid crystal display, and cloudy surface screen 1 is suitble to commercialization, and rough surface, light is mapped to
Diffusing reflection just has occurred above, compares Bright View, reflective phenomenon will not be generated when light is strong, at the cloudy surface screen 1 four
End angle is in circular arc setting and its radian being arranged is identical, is equipped with a recess 11 in the 1 top surface middle position of cloudy surface screen, described
The shape of recess 11 is inverted trapezoidal.It meets the setting of mobile phone shape, is provided with one-side band in 1 top and bottom of cloudy surface screen
Glue black PET 2;Described diffusion membrane structure is in diffusion sheet head in one-side band glue black PET2 i.e. background technique
Cover a secret note.
As shown in Figure 1, the one-side band glue black PET2 includes three-decker；
The three-decker is respectively PET black film 21, adhesive layer 22 and the transparent release film 23 of PET from top to bottom；PET black film
21 have stability, the transparency, and recuperability can be used for liquid crystal protective film, and it is kind that adhesive layer, which is acrylics adhesive,
Adhesive, the transparent release film 23 of PET black film 21 and PET is bonding, and the transparent release film 23 of PET has high-temperature stability,
Usually as ground.
The PET black film 21 is covered on 22 top of adhesive layer, and the transparent release film 23 of PET is covered under adhesive layer 22
Side, in the present embodiment, transparent 23 thickness of release film of PET is in 0.038MM.
In above-mentioned cloudy surface screen 1, the mode of installation one-side band glue black PET2 is to set the one-side band glue black PET2
It sets in 1 top surface of cloudy surface screen or so circular arc and intermediate recesses 11, the general thickness of setting is 0.20MM, and error is in 0.08MM.
The one-side band glue black PET2 setting is 0.60MM, error 0.15MM in 1 bottom thickness of cloudy surface screen.
The process of one-side band glue black PET is set as shown in Fig. 2, being arranged 0.15T one-side band glue black PET2 in cloudy surface
Shield 1 bottom surface, then the gum of bottom surface is fractureed and indiffusion, then one-side band glue black is set in 1 top surface recess of cloudy surface screen, 11 position
PET2, then extend and be arranged to top surface both sides circular arc.
Above-mentioned technical proposal, the Contrast on effect before and after improvement are as follows:
Prejudged by the way that sheet head secret note will be spread, reduces diffusion-induced stress and concentrate, can effectively solve in hot test
It wrinkles bad.This improvement only improves clicking technique, does not influence Material Cost；
Increase the black glue of 0.01 MM thickness by being diffused in heterotype edge or three sides for Liu Haiping ultra-narrow frame backlight, can have
Effect improves bright line problem and is required to height to equipment precision and machining accuracy since black glue thickness only has 0.01 MM.This technique pair
Material Cost is promoted.
Diffusion sheet head piece secret note, which is prejudged, to be realized with three side black glues by improvement die-cutting process, to reach backlight without bright border
Phenomenon need to cooperate full work station CCD laminator to complete.
The utility model can effectively solve to expand by optimization to the processing of diffusion sheet secret note and optimization diffusion secret note structure
It dissipates secret note to wrinkle bad phenomenon in high temperature experiment, while passing through and adding the black glue (ink) of 0.01 MM * 20MM in diffusion sheet
To improve backlight bright border problem；
Prejudged by the way that sheet head secret note will be spread, reduces diffusion-induced stress and concentrate, can effectively solve in hot test
It wrinkles bad.This improvement only improves clicking technique, does not influence Material Cost.Finally, it should be noted that the foregoing is merely
The preferred embodiment of the utility model, is not intended to limit the utility model, although practical to this with reference to the foregoing embodiments
It is novel to be described in detail, it for those skilled in the art, still can be to recorded in foregoing embodiments
Technical solution modify or equivalent replacement of some of the technical features.It is all the utility model spirit and
Within principle, any modification, equivalent replacement, improvement and so on be should be included within the scope of protection of this utility model.
Claims (5)
1. a kind of diffusion sheet for ultra-narrow frame backlight, including cloudy surface screen；It is characterized by: the cloudy surface screen is a rectangle
Liquid crystal display, it is in that radian that circular arc line is arranged and it is arranged is identical, and arc length is equal that angle is held at the cloudy surface screen four,
It is equipped with a recess in cloudy surface screen top surface middle position, is provided with one-side band glue black in cloudy surface screen top and bottom
PET;
The one-side band glue black PET includes three-decker；
The three-decker is respectively PET black film, adhesive layer and the transparent release film of PET from top to bottom；
Above adhesive layer, the transparent release film of PET is covered below adhesive layer the PET black plastic mulching.
2. the diffusion sheet according to claim 1 for ultra-narrow frame backlight, it is characterised in that: the shape of the recess is
Inverted trapezoidal.
3. the diffusion sheet according to claim 1 for ultra-narrow frame backlight, it is characterised in that: the one-side band glue black
In cloudy surface screen top surface or so circular arc and intermediate recesses, the general thickness of setting is 0.20MM for PET setting, error 0.08MM with
It is interior.
4. the diffusion sheet according to claim 1 for ultra-narrow frame backlight, it is characterised in that: the one-side band glue black
PET setting is 0.60MM in cloudy surface screen bottom thickness, and error is within 0.15MM.
5. the diffusion sheet according to claim 1 for ultra-narrow frame backlight, it is characterised in that: the PET is transparent release
Film thickness is 0.038MM.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822251662.2U CN209118025U (en) | 2018-12-29 | 2018-12-29 | A kind of diffusion sheet for ultra-narrow frame backlight |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822251662.2U CN209118025U (en) | 2018-12-29 | 2018-12-29 | A kind of diffusion sheet for ultra-narrow frame backlight |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209118025U true CN209118025U (en) | 2019-07-16 |
Family
ID=67209022
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822251662.2U Active CN209118025U (en) | 2018-12-29 | 2018-12-29 | A kind of diffusion sheet for ultra-narrow frame backlight |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209118025U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111176014A (en) * | 2019-12-30 | 2020-05-19 | 深圳市南极光电子科技股份有限公司 | Optical diaphragm processing method for backlight source, backlight source and mobile terminal |
-
2018
- 2018-12-29 CN CN201822251662.2U patent/CN209118025U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111176014A (en) * | 2019-12-30 | 2020-05-19 | 深圳市南极光电子科技股份有限公司 | Optical diaphragm processing method for backlight source, backlight source and mobile terminal |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202835065U (en) | Backlight module and display device | |
| CN202453599U (en) | Liquid crystal module structure with film positioning function | |
| CN209356808U (en) | A kind of light leakage backlight module | |
| CN206532053U (en) | A kind of liquid crystal display device | |
| CN202870439U (en) | Liquid crystal display | |
| CN207008250U (en) | A kind of glue frame, backlight source module and display device | |
| CN209118025U (en) | A kind of diffusion sheet for ultra-narrow frame backlight | |
| CN210488190U (en) | Optical diaphragm, backlight module, liquid crystal module and terminal equipment | |
| CN209373299U (en) | A kind of anti-bright line structure in backlight tail portion | |
| CN104678647A (en) | LCD display device with black plastic rubber | |
| CN205899197U (en) | Backlight module and liquid crystal display (LCD) device | |
| CN205318064U (en) | Backlight module and display device | |
| CN204719370U (en) | A kind of novel narrow frame backlight source light leakage blooming | |
| CN206505202U (en) | A kind of backlight | |
| CN204964948U (en) | Display and terminal | |
| CN207114976U (en) | A kind of backlight module for reducing light leak | |
| CN208334848U (en) | A kind of novel backlight module structure | |
| CN207114974U (en) | The backlight module for being easy to optical diaphragm group to fix | |
| CN206321920U (en) | A kind of backlight and liquid crystal display module | |
| CN105739183B (en) | A kind of backlight, backlight module and preparation method thereof, display device | |
| CN203082682U (en) | Backlight module and liquid crystal display device using same | |
| CN206209241U (en) | A kind of liquid crystal display module | |
| CN208156367U (en) | A kind of backlight module improving light leakage effect | |
| CN207636883U (en) | A kind of display module and touch-control display module | |
| CN207742655U (en) | Touch-control display module and touch control display device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |