CN109613643A - Improve site arrangement and backlight module that side enters light lamp bar lamp bead spacing - Google Patents
Improve site arrangement and backlight module that side enters light lamp bar lamp bead spacing Download PDFInfo
- Publication number
- CN109613643A CN109613643A CN201811629502.5A CN201811629502A CN109613643A CN 109613643 A CN109613643 A CN 109613643A CN 201811629502 A CN201811629502 A CN 201811629502A CN 109613643 A CN109613643 A CN 109613643A
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- CN
- China
- Prior art keywords
- site
- light
- dot area
- optically focused
- lamp bead
- 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.)
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Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
- G02B6/0015—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/0016—Grooves, prisms, gratings, scattering particles or rough surfaces
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Planar Illumination Modules (AREA)
Abstract
The invention discloses the site arrangements that a kind of raising side enters light lamp bar lamp bead spacing, 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 staggered according to the first dim light dot area H, the first optically focused dot area M, second heterosphere site is staggered according to the second optically focused dot area P, the second dim light dot area N, and the region except two layers of non-homogeneous site is uniform site；Also disclose a kind of backlight module.The present invention can obtain desired level and uniformly go out light, and the size of network point distribution is determined by the distance with LED light source, can also reduce LED lamp bead quantity and optical diaphragm, to improve energy conservation and environmental protection and reduce cost and loss.
Description
Technical field
The invention belongs to light conducting plate structure technical fields, and in particular to a kind of site improved side and enter light lamp bar lamp bead spacing
Arrangement and backlight module.
Background technique
Light guide plate is the key component of backlight module, backlight module is because linear light source can be transformed into area source by it
The supplier of liquid crystal display (LCD) light source, LCD itself do not shine, and the performance of backlight module light source just determines display
Show outer visual experience effect.
As shown in Figure 1, 2, existing light guide plate be essentially PMMA light guide plate/MS light guide plate/PS light guide plate/glass light guide plate this
It is several.As existing cost is continuously increased and energy consumption control, that is only continuous to reduce LED lamp bead and various optical films
Piece, the site in light guide plate are uniformly arrangement；LED light emitting source emits beam the incident side that can not uniformly reflect in light guide plate
Direction will form lamp shadow phenomenon so as to cause light guide plate incident side.
It is generallyd use in industry by doing V-Cut Design processing in every a piece of light guide plate incident side cross section.Fraction defective
Height, light efficiency is low, at high cost, processing difficulties.
Summary of the invention
In view of this, the main purpose of the present invention is to provide the site arrangements that a kind of raising side enters light lamp bar lamp bead spacing
Structure 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 for improving side and entering light lamp bar lamp bead spacing, along entering for light guide plate
Light side direction sets gradually two layers of non-homogeneous site to light emission side direction, wherein the non-homogeneous site of first layer is according to the first dim light
Dot area H, the first optically focused dot area M are staggered, and the second heterosphere site is according to the second optically focused dot area P,
Two dim light dot area N are staggered, and the region except two layers of non-homogeneous site is uniform site.
In above scheme, the first dim light dot area H points are the first dim light subregion H1 and the second dim light subregion
The density values or magnitude numerical value of site are less than uniform in H2, the first dim light subregion H1 and the second dim light subregion H2
Site.
In above scheme, the first optically focused dot area M points are the first optically focused subregion M1 and the second optically focused subregion
The density values or magnitude numerical value of site in M2, the first optically focused subregion M1 and the second central area optically focused subregion M2
Greater than uniform site.
In above scheme, the density values or magnitude numerical value of site are greater than uniform in the second optically focused dot area P
Site.
In above scheme, the density values or magnitude numerical value of site are less than uniform in the second dim light dot area N
Site.
In above scheme, the dot shape in the uniform site and non-homogeneous site is round, rectangular or special-shaped.
In above scheme, the first dim light dot area H is correspondingly arranged with the second optically focused dot area P, and described first
Optically focused dot area M is correspondingly arranged with the second dim light dot area N.
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 are provided with
Several LED light emitting sources are arranged in incident side and light emission side, the incident side side；Several nets are provided on the light guide plate
Point, the site are arranged according to the site arrangement as described in any one of above scheme.
Compared with prior art, the present invention can obtain desired level and uniformly go out light, by a distance from LED light source
Distance determines the size of network point distribution, LED lamp bead quantity and optical diaphragm can be also reduced, to improve energy conservation and environmental protection and drop
Low cost and loss.
Detailed description of the invention
Fig. 1 is the arrangement schematic diagram of site on prior art light guide plate；
Fig. 2 is the site refraction effect figure of prior art light guide plate；
Fig. 3 shows for the structure that the embodiment of the present invention provides a kind of site arrangement that raising side enters light lamp bar lamp bead spacing
It is intended to；
Fig. 4 for the embodiment of the present invention provides a kind of raising side, and to enter in the site arrangement of light lamp bar lamp bead spacing first weak
The schematic diagram of light dot area H；
Fig. 5 for the embodiment of the present invention provides a kind of raising side, and to enter in the site arrangement of light lamp bar lamp bead spacing first weak
The schematic diagram of photon region H1；
Fig. 6 for the embodiment of the present invention provides a kind of raising side, and to enter in the site arrangement of light lamp bar lamp bead spacing second weak
The schematic diagram of photon region H2；
Fig. 7 for the embodiment of the present invention provides a kind of raising side, and to enter in the site arrangement of light lamp bar lamp bead spacing first weak
Light dot area H1, the second dim light dot area H2 compare schematic diagram with uniform site；
Fig. 8 for the embodiment of the present invention provides a kind of raising side, and to enter in the site arrangement of light lamp bar lamp bead spacing first poly-
The schematic diagram of light dot area M；
Fig. 9 for the embodiment of the present invention provides a kind of raising side, and to enter in the site arrangement of light lamp bar lamp bead spacing first poly-
The schematic diagram of photon region M1；
Figure 10 provides a kind of raising side for the embodiment of the present invention and enters second in the site arrangement of light lamp bar lamp bead spacing
The schematic diagram of optically focused subregion M2；
Figure 11 provides a kind of raising side for the embodiment of the present invention and enters second in the site arrangement of light lamp bar lamp bead spacing
The schematic diagram of optically focused dot area P；
Figure 12 provides a kind of raising side for the embodiment of the present invention and enters second in the site arrangement of light lamp bar lamp bead spacing
Optically focused dot area P compares schematic diagram with uniform site；
Figure 13 provides a kind of raising side for the embodiment of the present invention and enters second in the site arrangement of light lamp bar lamp bead spacing
The schematic diagram of dim light dot area N；
Figure 14 provides a kind of refraction for improving side and entering the site arrangement of light lamp bar lamp bead spacing for the embodiment of the present invention
Effect picture.
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 for improving side and entering light lamp bar lamp bead spacing, as shown in figure 3, edge
The incident side direction of light guide plate sets gradually two layers of non-homogeneous site to light emission side direction, wherein presses the non-homogeneous site of first layer
It is staggered according to the first dim light dot area H, the first optically focused dot area M, the second heterosphere site is according to the second optically focused net
Point region P, the second dim light dot area N are staggered, and the region except two layers of non-homogeneous site is uniform site, this
Sample, the incident side of light guide plate can obtain desired level and uniformly go out light, determine net by the distance with LED light source
The size of point distribution, can also reduce LED lamp bead quantity and optical diaphragm, to improve energy conservation and environmental protection and reduce cost and damage
Consumption.
The first dim light dot area H point is the first dim light subregion H1 and the second dim light subregion H2, described first
The density values or magnitude numerical value of site are less than uniform site in dim light subregion H1 and the second dim light subregion H2.
As shown in figure 4, when LED light emitting source length is R=4, when structural member center pressure light guide plate range is 5/MM, H long
Size C is spent to be equal to R and be not more than 1.2 times of R.During H height dimension S is equal to center pressure light guide plate range 5/MM and is not more than
Frame presses 1.32 times of light guide plate range 5/MM.
As shown in Fig. 5,6,7, the length dimension C of H1 and H2 is H length dimension C half, and the height S of H1 and H2 are equal to
0.6-0.75 times of H height S, the center of H1 are on the one third position of H length C, and H1 angle is -3 degree.The center of H2
Position is on 2/3rds positions of H length C, and H2 angle is+3 degree.Three range positions are reduced by starting point of central point
Dot density value or the sizes values for reducing site, to play dim light effect.When the regular mesh point density for not doing processing
When value is 100%, then the dot density value of H is within the scope of 13%-17%, the dot density value of H1 and H2 are 45%-55%
In range.
The first optically focused dot area M point is the first optically focused subregion M1 and the second optically focused subregion M2, described first
The density values or magnitude numerical value of site are greater than uniform net in optically focused subregion M1 and the second central area optically focused subregion M2
Point.
As shown in figure 8, the length C of M is equal to the sum of L and LED light emitting source R length, to subtract the size after LED light emitting source again long
Degree.Within the scope of 0.7-0.88 times of height S of the height S of M equal to H.
As shown in Figures 9 and 10, the length dimension C of M1 and M2 is M length dimension C half, and the height S of M1 and M2 are equal to M
0.6-0.72 times of height S, the center of M1 are on the one third position of M length C, and M1 angle is -2 degree.The center of M2
Position is on 2/3rds positions of M length C, and M2 angle is+2 degree.Three range positions are increased by starting point of central point
Dot density value or the sizes values for increasing site, to play spotlight effect.When the dot density for not doing processing is
When 100%, then the density value of M is within the scope of 200%-250%, the density value of M1 and M2 are within the scope of 135%-150%.
The density values or magnitude numerical value of site are greater than uniform site in the second optically focused dot area P.
As shown in Figure 11,12, dot density is big within the scope of dot density ratio H within the scope of P position, increases dot density value
Or the sizes values of site are increased to play focusing light effect.The length C size of P is less than LED light emitting source R=4 and is greater than
Rx0.85, height S size are less than H height S size and are greater than H height S size x0.8.When the regular mesh point for not doing processing is close
When angle value is 100%, then the dot density value in P range position is within the scope of 113%-120%.
The density values or magnitude numerical value of site are less than uniform site in the second dim light dot area N.
As shown in figure 13, the length C of N subtracts P dimensions length equal to the sum of L and LED light emitting source R length again.The height S of N
Height S greater than P is cut within the scope of 1.1 times of the height less than P.Range position is all to reduce dot density value by starting point of central point
Or reduce the sizes values of site, to play dim light effect.When the regular mesh point density value for not doing processing is 100%
When, then the density value of N is within the scope of 85%-92%.
Dot shape in the uniform site and non-homogeneous site is round, rectangular or special-shaped.
The first dim light dot area H is correspondingly arranged with the second optically focused dot area P, the first optically focused dot area
M is correspondingly arranged with the second dim light dot area N.
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.
If Figure 14 and Fig. 2 is compared it is found that lamp shadow area of the invention is improved well, overall light is uniform, can drop
Low cost；And design is simple, easily operated, general engineering technology personnel can be realized.
The embodiment of the present invention also provides a kind of backlight module, which is characterized in that described to lead including light guide plate, LED light emitting source
Tabula rasa is provided with incident side and light emission side, several LED light emitting sources are arranged in the incident side side；It is provided on the light guide plate
Several sites, the site are arranged 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. a kind of site arrangement for improving side and entering light lamp bar lamp bead spacing, which is characterized in that 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 according to the first dim light site area
Domain H, the first optically focused dot area M are staggered, and the second heterosphere site is according to the second optically focused dot area P, the second dim light
Dot area N is staggered, and the region except two layers of non-homogeneous site is uniform site.
2. the site arrangement according to claim 1 for improving side and entering light lamp bar lamp bead spacing, which is characterized in that described
First dim light dot area H points are the first dim light subregion H1 and the second dim light subregion H2, the first dim light subregion H1
It is less than uniform site with the density values or magnitude numerical value of site in the second dim light subregion H2.
3. the site arrangement according to claim 1 or 2 for improving side and entering light lamp bar lamp bead spacing, which is characterized in that
The first optically focused dot area M points are the first optically focused subregion M1 and the second optically focused subregion M2, the first optically focused sub-district
The density values or magnitude numerical value of site are greater than uniform site in domain M1 and the second central area optically focused subregion M2.
4. the site arrangement according to claim 3 for improving side and entering light lamp bar lamp bead spacing, which is characterized in that described
The density values or magnitude numerical value of site are greater than uniform site in second optically focused dot area P.
5. the site arrangement according to claim 4 for improving side and entering light lamp bar lamp bead spacing, which is characterized in that described
The density values or magnitude numerical value of site are less than uniform site in second dim light dot area N.
6. the site arrangement according to claim 5 for improving side and entering light lamp bar lamp bead spacing, which is characterized in that described
Dot shape in uniform site and non-homogeneous site is round, rectangular or special-shaped.
7. the site arrangement according to claim 6 for improving side and entering light lamp bar lamp bead spacing, which is characterized in that described
First dim light dot area H is correspondingly arranged with the second optically focused dot area P, the first optically focused dot area M and the second dim light
Dot area N is correspondingly arranged.
8. the site arrangement according to claim 7 for improving side and entering light lamp bar lamp bead spacing, which is characterized in that described
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 apart from systematicness with
Duplication 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 provided with incident side and goes out
Several LED light emitting sources are arranged in light side, the incident side side；Several sites, the site are provided on the light guide plate
According to the site arrangement arrangement as described in claim 1-8 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811629502.5A CN109613643A (en) | 2018-12-28 | 2018-12-28 | Improve site arrangement and backlight module that side enters light lamp bar lamp bead spacing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811629502.5A CN109613643A (en) | 2018-12-28 | 2018-12-28 | Improve site arrangement and backlight module that side enters light lamp bar lamp bead spacing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109613643A true CN109613643A (en) | 2019-04-12 |
Family
ID=66011932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811629502.5A Withdrawn CN109613643A (en) | 2018-12-28 | 2018-12-28 | Improve site arrangement and backlight module that side enters light lamp bar lamp bead spacing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109613643A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110412680A (en) * | 2019-08-16 | 2019-11-05 | 东莞市银泰丰光学科技有限公司 | A kind of leaded light mould group |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102681079A (en) * | 2011-03-11 | 2012-09-19 | 康佳集团股份有限公司 | Light guide plate, backlight module and display device |
| TW201433866A (en) * | 2011-07-27 | 2014-09-01 | Au Optronics Corp | Backlight module |
| CN105090811A (en) * | 2014-05-20 | 2015-11-25 | 广州璨宇光学有限公司 | Light source module |
| CN205484896U (en) * | 2016-04-01 | 2016-08-17 | 厦门市益津鹭科技有限公司 | Eliminate light guide plate of lamp shadow |
| CN206209245U (en) * | 2016-10-24 | 2017-05-31 | 合肥惠科金扬科技有限公司 | Backlight source module and light guide plate |
| CN209590323U (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 for improving side and entering light lamp bar lamp bead spacing |
-
2018
- 2018-12-28 CN CN201811629502.5A patent/CN109613643A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102681079A (en) * | 2011-03-11 | 2012-09-19 | 康佳集团股份有限公司 | Light guide plate, backlight module and display device |
| TW201433866A (en) * | 2011-07-27 | 2014-09-01 | Au Optronics Corp | Backlight module |
| CN105090811A (en) * | 2014-05-20 | 2015-11-25 | 广州璨宇光学有限公司 | Light source module |
| CN205484896U (en) * | 2016-04-01 | 2016-08-17 | 厦门市益津鹭科技有限公司 | Eliminate light guide plate of lamp shadow |
| CN206209245U (en) * | 2016-10-24 | 2017-05-31 | 合肥惠科金扬科技有限公司 | Backlight source module and light guide plate |
| CN209590323U (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 for improving side and entering light lamp bar lamp bead spacing |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110412680A (en) * | 2019-08-16 | 2019-11-05 | 东莞市银泰丰光学科技有限公司 | A kind of leaded light mould group |
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190412 |
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| WW01 | Invention patent application withdrawn after publication |