CN109738981A - The site arrangement and backlight module of lamp shadow phenomenon can be eliminated - Google Patents
The site arrangement and backlight module of lamp shadow phenomenon can be eliminated Download PDFInfo
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- CN109738981A CN109738981A CN201811629156.0A CN201811629156A CN109738981A CN 109738981 A CN109738981 A CN 109738981A CN 201811629156 A CN201811629156 A CN 201811629156A CN 109738981 A CN109738981 A CN 109738981A
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- site
- dot area
- lamp shadow
- guide plate
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Abstract
The invention 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 present invention 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 invention belongs to light conducting plate structure technical fields, and in particular to one kind can eliminate the site arrangement knot of lamp shadow phenomenon
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.
Summary of the invention
In view of this, the main purpose of the present invention is to provide one kind can eliminate lamp shadow phenomenon site arrangement and
Backlight module.
In order to achieve the above objectives, the technical scheme of the present invention is realized as follows:
The embodiment of the present invention provides a kind of site arrangement that can eliminate lamp shadow phenomenon, along the incident side side of light guide plate
Two layers of non-homogeneous site is set gradually to light emission side direction, wherein the non-homogeneous site of first layer is with the first interval dot area C
Setting, the second heterosphere site are staggered according to the second dot area A, third dot area B, first dot area
C and third dot area B is correspondingly arranged and the two intersection the second dot area A and third site area into light emission side direction
Region except the B of domain 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 embodiment of the present invention also provides a kind of backlight module, including light guide plate, LED light emitting source, the light guide plate be equipped with into
Several LED light emitting sources are arranged in light side and light emission side, the incident side side；The light guide plate is equipped with several sites, institute
Site is stated to arrange according to the site arrangement as described in any one of above scheme.
Compared with prior art, the present invention is by adjusting the shape size in the region A, B, C and the mode of density transition, then with
The L of the corresponding lamp bead number of LED light emitting source apart from systematicness with duplication or array manner arrangement, can significantly improve into
Light 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 schematic diagram of site arrangement that can eliminate lamp shadow phenomenon for the embodiment of the present invention；
Fig. 4, which provides one kind for the embodiment of the present invention, can eliminate the first site described in the site arrangement of lamp shadow phenomenon
The schematic diagram of region C, the second dot area A, third dot area B；
Fig. 5, which provides one kind for the embodiment of the present invention, can eliminate the first site described in the site arrangement of lamp shadow phenomenon
The control schematic diagram of region C, the second dot area A, third dot area B.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
The embodiment of the present invention provides a kind of site arrangement that can eliminate lamp shadow phenomenon, as shown in figure 3, along light guide plate
Incident side direction set gradually two layers of non-homogeneous site to light emission side direction, wherein the non-homogeneous site of first layer is with the first net
The setting of the point interval region C, the second heterosphere site is staggered according to the second dot area A, third dot area B, described
First dot area C and third dot area B is correspondingly arranged and the two intersection second dot area A into light emission side direction
It is uniform site with the region except third dot area B；What the first dot area C was in light guide plate is left white region, leads to
It crosses and carries out site working process the first dot area C of acquisition in the region that is left white of not site, increase optical scattering angle, improve
Lamp shadow effect under limit A/P value；By the trizonal size of corresponding A.B.C, dot density processing and density are converted
Processing is crossed, desired visual effect is reached.
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 Startline-
Pitch plays the role of changing the light energy power for reaching dot area.Light guide plate incident side Startline-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 embodiment of the present invention also provides a kind of backlight module, including light guide plate, LED light emitting source, the light guide plate be equipped with into
Several LED light emitting sources are arranged in light side and light emission side, the incident side side；The light guide plate is equipped with several sites, institute
Site is stated to arrange according to above-mentioned site arrangement.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the scope of the present invention.
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 according to claim 1 that lamp shadow phenomenon can be eliminated, which is characterized in that first net
What point region C was in light guide plate is left white region.
3. the site arrangement according to claim 1 or 2 that lamp shadow phenomenon can be eliminated, which is characterized in that described
The density values or magnitude numerical value of site are greater than uniform site in one interval dot area C and third dot area B.
4. the site arrangement according to claim 3 that lamp shadow phenomenon can be eliminated, which is characterized in that second net
The density values or magnitude numerical value of site are equal to uniform site in point region A.
5. the site arrangement according to claim 4 that lamp shadow phenomenon can be eliminated, which is characterized in that first net
Semiellipse on the basis of being put centered on point region C.
6. the site arrangement according to claim 5 that lamp shadow phenomenon can be eliminated, which is characterized in that second net
Point region A, third dot area B are the semiellipse on the basis of central point.
7. the site arrangement according to claim 6 that lamp shadow phenomenon can be eliminated, which is characterized in that the site
Start line is adjusted as needed to light-guide edge distance, and is adjusted to range less than or equal to light-guide edge to visually
Offset from.
8. the site arrangement according to claim 7 that lamp shadow phenomenon can be eliminated, which is characterized in that described two layers non-
Uniform 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 apart from systematicness with duplication or
The arrangement of person's array manner.
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 |
|---|---|---|---|
| CN201811629156.0A CN109738981A (en) | 2018-12-28 | 2018-12-28 | The site arrangement and backlight module of lamp shadow phenomenon can be eliminated |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811629156.0A CN109738981A (en) | 2018-12-28 | 2018-12-28 | The site arrangement and backlight module of lamp shadow phenomenon can be eliminated |
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| Publication Number | Publication Date |
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| CN109738981A true CN109738981A (en) | 2019-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811629156.0A Withdrawn CN109738981A (en) | 2018-12-28 | 2018-12-28 | The site arrangement and backlight module of lamp shadow phenomenon can be eliminated |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110187430A (en) * | 2019-05-29 | 2019-08-30 | 重庆翰博光电有限公司 | A kind of light guide plate mesh point arrangement and its design method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004145035A (en) * | 2002-10-25 | 2004-05-20 | Sanyo Electric Co Ltd | Surface light source device and method for manufacturing light transmission plate used therein |
| TW200627012A (en) * | 2005-01-21 | 2006-08-01 | Hon Hai Prec Ind Co Ltd | Light guide plate |
| CN102520518A (en) * | 2011-12-12 | 2012-06-27 | 康佳集团股份有限公司 | Processing method based on light guide plate mesh point shadow reinforcement and processing apparatus |
| CN202972788U (en) * | 2012-11-21 | 2013-06-05 | 深圳市瀚达美电子有限公司 | Novel energy-saving 7-inch LED (Light Emitting Diode) backlight module |
| CN104501045A (en) * | 2014-12-23 | 2015-04-08 | 苏州茂立光电科技有限公司 | Laterally-incoming-type backlight module and light guide plate thereof |
| CN209590324U (en) * | 2018-12-28 | 2019-11-05 | 深圳市高美福电子有限公司 | A kind of site arrangement and backlight module that can eliminate lamp shadow phenomenon |
-
2018
- 2018-12-28 CN CN201811629156.0A patent/CN109738981A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004145035A (en) * | 2002-10-25 | 2004-05-20 | Sanyo Electric Co Ltd | Surface light source device and method for manufacturing light transmission plate used therein |
| TW200627012A (en) * | 2005-01-21 | 2006-08-01 | Hon Hai Prec Ind Co Ltd | Light guide plate |
| CN102520518A (en) * | 2011-12-12 | 2012-06-27 | 康佳集团股份有限公司 | Processing method based on light guide plate mesh point shadow reinforcement and processing apparatus |
| CN202972788U (en) * | 2012-11-21 | 2013-06-05 | 深圳市瀚达美电子有限公司 | Novel energy-saving 7-inch LED (Light Emitting Diode) backlight module |
| CN104501045A (en) * | 2014-12-23 | 2015-04-08 | 苏州茂立光电科技有限公司 | Laterally-incoming-type backlight module and light guide plate thereof |
| CN209590324U (en) * | 2018-12-28 | 2019-11-05 | 深圳市高美福电子有限公司 | A kind of site arrangement and backlight module that can eliminate lamp shadow phenomenon |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110187430A (en) * | 2019-05-29 | 2019-08-30 | 重庆翰博光电有限公司 | A kind of light guide plate mesh point arrangement and its design method |
| CN110187430B (en) * | 2019-05-29 | 2024-02-06 | 重庆翰博光电有限公司 | Light guide plate mesh point arrangement structure and design method thereof |
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190510 |
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| WW01 | Invention patent application withdrawn after publication |