CN209590324U - A kind of site arrangement and backlight module that can eliminate lamp shadow phenomenon - Google Patents
A kind of site arrangement and backlight module that can eliminate lamp shadow phenomenon Download PDFInfo
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- CN209590324U CN209590324U CN201822239266.8U CN201822239266U CN209590324U CN 209590324 U CN209590324 U CN 209590324U CN 201822239266 U CN201822239266 U CN 201822239266U CN 209590324 U CN209590324 U CN 209590324U
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- lamp shadow
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Abstract
The utility model discloses the site arrangements that one kind can eliminate lamp shadow phenomenon, two layers of non-homogeneous site is set gradually along the incident side direction of light guide plate to light emission side direction, wherein, the non-homogeneous site of first layer is arranged with the first interval dot area C, second heterosphere site is staggered according to the second dot area A, third dot area B, and the first dot area C and third dot area B is correspondingly arranged and region of the two intersection into light emission side direction except the second dot area A and third dot area B is uniform site；Also disclose a kind of backlight module.The utility model is by adjusting the shape size in the region A, B, C and the mode of density transition, being arranged with duplication or array manner apart from systematicness with the L of the corresponding lamp bead number of LED light emitting source again, incident side lamp shadow effect can significantly be improved, processing cost can be effectively reduced, general technical staff's operational design is conducive to.
Description
Technical field
The utility model belongs to light conducting plate structure technical field, and in particular to one kind can eliminate the site row of lamp shadow phenomenon
Cloth structure and backlight module.
Background technique
At this stage, the mode major way that light guide plate lamp shadow is solved the problems, such as in industry is two kinds:
One, some of the staff can do light guide plate (Light Guide Plate abbreviation LGP) in factory and enter light V-cut, that is, enter
Zigzag cutting process is done in light side end face, so that LED lamp holder light is scattered out with more wide visual angle, this scheme needs add
Add light guide plate processing process, needs Special precision equipment to carry out the processing of light inputting end face and (be divided into laser processing or mechanic
Skill processing), increase cost with manually, increased process flow can directly result in the fraction defective for improving product, and will be by surveying
Parameter is tried, determines that the end face the V-cut form of processing can satisfy the lamp shadow effect of light guide plate, as shown in Figure 1.
Two, density processing in incident side site is done using the method for design, it is bright with diffusing reflection dot number compensating lamp shadow zone domain
Dark subregion, in the position of lamp cap by site desaturation, position between lamp is by site densification process.This process needs to continuously attempt to density
The structure design of the area size of numerical value and density, corresponding ultra-narrow frame and larger LED spacing, there are design limits, that is, exist
After the processing of limiting density density, it is shinny still to there is lamp cap, the phenomenon that obfuscation between lamp, as shown in Figure 2.
Utility model content
In view of this, the main purpose of the utility model is to provide the site arrangement knots that one kind can eliminate lamp shadow phenomenon
Structure and backlight module.
In order to achieve the above objectives, the technical solution of the utility model is achieved in that
The utility model embodiment provides a kind of site arrangement that can eliminate lamp shadow phenomenon, enters light along light guide plate
Side direction sets gradually two layers of non-homogeneous site to light emission side direction, wherein the non-homogeneous site of first layer is with the first dot area C
Interval setting, the second heterosphere site are staggered according to the second dot area A, third dot area B, first site
Region C and third dot area B is correspondingly arranged and the two intersection the second dot area A and third net into light emission side direction
Region except point region B is uniform site.
In above scheme, what the first dot area C was in light guide plate is left white region.
In above scheme, the density values of site or big in the interval the first dot area C and third dot area B
Fractional value is greater than uniform site.
In above scheme, the density values or magnitude numerical value of site are equal to uniform site in the second dot area A.
Semiellipse in above scheme, on the basis of being put centered on the first dot area C.
In above scheme, the second dot area A, third dot area B are the semiellipse on the basis of central point.
In above scheme, the start line of the site is adjusted as needed to light-guide edge distance, and is adjusted
It is less than or equal to light-guide edge to visible area distance to range.
In above scheme, two layers of non-homogeneous site is with the corresponding lamp of LED light emitting source in the incident side direction of light guide plate
The L of pearl number is apart from systematicness with duplication or array manner arrangement.
The utility model embodiment also provides a kind of backlight module, including light guide plate, LED light emitting source, the light guide plate are set
There are incident side and light emission side, several LED light emitting sources are arranged in the incident side side；The light guide plate is equipped with several nets
Point, the site are arranged according to the site arrangement as described in any one of above scheme.
Compared with prior art, the utility model is by adjusting the shape size in the region A, B, C and the mode of density transition,
Being arranged with duplication or array manner apart from systematicness with the L of the corresponding lamp bead number of LED light emitting source again, can significantly change
Kind incident side lamp shadow effect, can effectively reduce processing cost, be conducive to general technical staff's operational design.
Detailed description of the invention
Fig. 1 is the first arrangement schematic diagram of site on prior art light guide plate；
Fig. 2 is second of arrangement schematic diagram of site on prior art light guide plate；
Fig. 3 provides a kind of structural representation of site arrangement that can eliminate lamp shadow phenomenon for the utility model embodiment
Figure；
Fig. 4 provides a kind of can eliminate first described in the site arrangement of lamp shadow phenomenon for the utility model embodiment
The schematic diagram of dot area C, the second dot area A, third dot area B；
Fig. 5 provides a kind of can eliminate first described in the site arrangement of lamp shadow phenomenon for the utility model embodiment
The control schematic diagram of dot area C, the second dot area A, third dot area B.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
The utility model embodiment provides a kind of site arrangement that can eliminate lamp shadow phenomenon, as shown in figure 3, along leading
The incident side direction of tabula rasa sets gradually two layers of non-homogeneous site to light emission side direction, wherein the non-homogeneous site of first layer is with
The setting of one interval dot area C, the second heterosphere site are staggered according to the second dot area A, third dot area B,
The first dot area C and third dot area B is correspondingly arranged and the two intersection second site into light emission side direction
Region except region A and third dot area B is uniform site；What the first dot area C was in light guide plate is left white area
Domain carries out site working process the first dot area C of acquisition by the region that is left white in not site, increases optical scattering angle
Degree improves the lamp shadow effect under limit A/P value；By the trizonal size of corresponding A.B.C, dot density processing and density
Switch transition processing, reaches desired visual effect.
The first dot area C, the second dot area A, the density values variation of site and gradually in third dot area B
Change mode plays the role of changing light diffusing reflection power.According to LED light emitting source with successively array or the duplication of Pitch distance.
The density values or magnitude numerical value of site are greater than in the interval first dot area C and third dot area B
Uniform site.
The density values or magnitude numerical value of site are equal to uniform site in the second dot area A.
Semiellipse on the basis of being put centered on the first dot area C.
The second dot area A, third dot area B are the semiellipse on the basis of central point.
As shown in Figure 4,5, there are A, B and C before LED light emitting source in range, light-guide edge to visible area distance is A-
Pitch, lamp bead spacing are Pitch, ratio A/P.When LED light emitting source length is L=8, the area A semiellipse, X semiaxis size is
X=L* (35%~40%), Y semiaxis size are Y=L* (40%~50%).In the area A semiellipse, using elliptical center as gradual change
Point reduces areal concentration, and size is into optical density initial value * A/P, and gradual change specification is according to varies with cosine.
The area B semiellipse, X semiaxis size be X '=(1.2*Pitch-2X)/2, Y semiaxis size be Y '=Y* (95%~
105%), in the area B semiellipse, using elliptical center as gradual change point, lifting region density, size be into optical density initial value/2A/P,
Gradual change specification is according to varies with cosine.
The area C semiellipse, X semiaxis size be X "=2X ' * (90%~110%), Y semiaxis size be Y "=2Y ' * (70%~
90%) lifting region density, size are into optical density initial value * (150%~200%), no gradual change.
The start line of the site is as needed adjusted to light-guide edge distance, and be adjusted to range less than etc.
In light-guide edge to visible area distance.
The site start line is to light-guide edge distance (Start line-Pitch), to change Start line-
Pitch plays the role of changing the light energy power for reaching dot area.Light guide plate incident side Start line-Pitch is reference
Value, needs to be adjusted according to practical visual effect situation.
By adjusting start line pitch, it can reach LGP lamp shadow effects of demand, shorten the development cycle, drop
Low development difficulty.
Start line pitch numerical value is modified during actual fabrication, extent of amendment does not surpass since 0.5mm
A-Pitch is crossed, achievees the purpose that meet visual effect.
Two layers of non-homogeneous site with the L of the corresponding lamp bead number of the LED light emitting source in the incident side direction of light guide plate away from
From systematicness with duplication or array manner arrangement.
The utility model embodiment also provides a kind of backlight module, including light guide plate, LED light emitting source, the light guide plate are set
There are incident side and light emission side, several LED light emitting sources are arranged in the incident side side；The light guide plate is equipped with several nets
Point, the site are arranged according to above-mentioned site arrangement.
The above, the only preferred embodiment of the utility model, are not intended to limit the protection of the utility model
Range.
Claims (9)
1. the site arrangement that one kind can eliminate lamp shadow phenomenon, which is characterized in that along the incident side direction of light guide plate to out
Light side direction sets gradually two layers of non-homogeneous site, wherein and the non-homogeneous site of first layer is arranged with the first interval dot area C,
Second heterosphere site is staggered according to the second dot area A, third dot area B, the first dot area C and
Three dot area B be correspondingly arranged and the two intersection into light emission side direction the second dot area A and third dot area B it
Outer region is uniform site.
2. the site arrangement that one kind according to claim 1 can eliminate lamp shadow phenomenon, which is characterized in that described
What one dot area C was in light guide plate is left white region.
3. the site arrangement that one kind according to claim 1 or 2 can eliminate lamp shadow phenomenon, which is characterized in that institute
The density values or magnitude numerical value for stating site in the first interval dot area C and third dot area B are greater than uniform site.
4. the site arrangement that one kind according to claim 3 can eliminate lamp shadow phenomenon, which is characterized in that described
The density values or magnitude numerical value of site are equal to uniform site in two dot area A.
5. the site arrangement that one kind according to claim 4 can eliminate lamp shadow phenomenon, which is characterized in that described
Semiellipse on the basis of being put centered on one dot area C.
6. the site arrangement that one kind according to claim 5 can eliminate lamp shadow phenomenon, which is characterized in that described
Two dot area A, third dot area B are the semiellipse on the basis of central point.
7. the site arrangement that one kind according to claim 6 can eliminate lamp shadow phenomenon, which is characterized in that the net
The start line of point is adjusted as needed to light-guide edge distance, and is adjusted to range and is arrived less than or equal to light-guide edge
Visible area distance.
8. the site arrangement that one kind according to claim 7 can eliminate lamp shadow phenomenon, which is characterized in that described two
The non-homogeneous site of layer is with the L of the corresponding lamp bead number of the LED light emitting source in the incident side direction of light guide plate apart from systematicness with multiple
System or array manner arrangement.
9. a kind of backlight module, which is characterized in that including light guide plate, LED light emitting source, the light guide plate is equipped with incident side and out light
Several LED light emitting sources are arranged in side, the incident side side；The light guide plate be equipped with several sites, the site according to
Site arrangement arrangement as described in claim 1-8 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822239266.8U CN209590324U (en) | 2018-12-28 | 2018-12-28 | A kind of site arrangement and backlight module that can eliminate lamp shadow phenomenon |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822239266.8U CN209590324U (en) | 2018-12-28 | 2018-12-28 | A kind of site arrangement and backlight module that can eliminate lamp shadow phenomenon |
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| CN209590324U true CN209590324U (en) | 2019-11-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109738981A (en) * | 2018-12-28 | 2019-05-10 | 深圳市高美福电子有限公司 | The site arrangement and backlight module of lamp shadow phenomenon can be eliminated |
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2018
- 2018-12-28 CN CN201822239266.8U patent/CN209590324U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109738981A (en) * | 2018-12-28 | 2019-05-10 | 深圳市高美福电子有限公司 | The site arrangement and backlight module of lamp shadow phenomenon can be eliminated |
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