CN107450232A - A kind of backlight module and its visual color ameliorative way - Google Patents
A kind of backlight module and its visual color ameliorative way Download PDFInfo
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- CN107450232A CN107450232A CN201710711578.1A CN201710711578A CN107450232A CN 107450232 A CN107450232 A CN 107450232A CN 201710711578 A CN201710711578 A CN 201710711578A CN 107450232 A CN107450232 A CN 107450232A
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- Prior art keywords
- light
- viewing area
- guide plate
- light guide
- backlight module
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Classifications
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- 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
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/3406—Control of illumination source
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Computer Hardware Design (AREA)
- Theoretical Computer Science (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Optics & Photonics (AREA)
- Planar Illumination Modules (AREA)
- Illuminated Signs And Luminous Advertising (AREA)
Abstract
A kind of backlight module and its visual color ameliorative way, it includes：Light source；FPC, light-blocking structure, ink layer and light guide plate, wherein, light guide plate includes the first viewing area middle area and the second viewing area, and light inputting end is oppositely arranged with the LED light source, and middle area abuts with the first viewing area, the second viewing area respectively；Ink layer, the light-blocking structure of backlight module of the present invention determine the adding proportion of ink according to the dispersion effect of light guide plate, improve the uniformity of light extraction and weaken even color difference eliminating, by the above-mentioned means, ensure backlight module emergent light and the uniformity, and weaken even color difference eliminating.
Description
Technical field
The present invention relates to field of liquid crystal display, more particularly to a kind of backlight module and its visual color ameliorative way.
Background technology
LCM（Liquid Crystal Display Module, liquid crystal display die set）Mainly by backlight, liquid-crystalline glasses,
Polaroid, integrated circuit, FPC composition.Liquid crystal display device due to its liquid crystal panel can not light in itself, it is necessary to by
Backlight module provides light source, to realize that the image of liquid crystal panel is shown.LCM design mainly includes structure design, electronics is set
Meter and display effect design, wherein, display effect is designed as a most intuitively characteristic.
LCM display effect design includes many parameters, and aberration balanced design is one of which.Aberration is balanced mainly by carrying on the back
LED in light（Light Emitting Diode, light emitting diode）Spectrum and light guide plate transmitance determine.Routine techniques
Middle back light LED is, it is necessary to which paster could light on FPC, and to reduce the luminous loss in LED exits, we are generally in LED
White ink is printed on the FPC in front, LED white lights are mixed by blue light and gold-tinted, and the ability of its longer diffraction of gold-tinted ripple is more
By force.Therefore gold-tinted more can expand the offside of particle directive light source around the light of light guide plate, show backlight close to light source lateral deviation
Indigo plant, the light source optical effect yellow to lateral deviation, the transmitance of different wave length part is also different, therefore just determines the liquid of different model
Crystal glass needs the LED of collocation different model.The design generally use of traditional LED aberration balance chooses the leaded light of a model
After plate, then by the color for constantly changing the LED light source of different model to select satisfied, but so operation wastes largely
Time and resource.
The content of the invention
The present invention solves the technical problem of provide a kind of backlight module and its visual color ameliorative way, Neng Goubao
The uniformity for the light color that card backlight module is sent, so as to reduce aberration.
To solve the above problems, one aspect of the present invention is：A kind of backlight module, it includes：
LED light source；
Light guide plate, it is made up of the first viewing area, middle area and the second viewing area, wherein, first viewing area and the LED
Light source is oppositely arranged, and the middle area abuts with the first viewing area, the second viewing area respectively；
FPC, it is arranged at the top of the LED light source；
Ink layer, between the light guide plate and the FPC；
Light-blocking structure, it is adjacent to the second viewing area；It is made up of lily PC materials.
Further, the ink layer corresponds to light guide plate and the interstitial site of LED light source is set.
Further, the ink layer is made up of following composition and percentage by weight, and forming inclined yellow with light guide plate puts down
Weighing apparatus display, in unit mass：
Mute white ink：1000g；
Red toner：0.198-0.213g；
Yellow toner：0.295-0.303g.
Further, the light-blocking structure ink addition 9.98g-10.16g green toners, are formed with the light guide plate
Blueness balance display partially.
A kind of backlight module visual color ameliorative way, it is characterised in that comprise the following steps：
Acquisition module, the light guide plate of display module and the model of LED light source are obtained, and for the light guide plate measure first of this model
Viewing area, middle area, the chromaticity coordinates of the second viewing area；
Input module, the yellow of the viewing area of input record light guide plate first, middle area and the second viewing area in computer
The chromaticity coordinates data of light and red light；
Processing module, the first viewing area, middle area and the second display are calculated based on the data inputted in input step
Aberration between area；Determine ink layer and the printing oil proportion relation being in the light in framework.
Further, the ink layer is made up of following composition and percentage by weight, and forming inclined yellow with light guide plate puts down
Weighing apparatus display, in unit mass：
Mute white ink：1000g；
Red toner：0.198-0.213g；
Yellow toner：0.295-0.303g.
Further, the light-blocking structure ink addition 9.98-10.16g green toners, are formed partially with the light guide plate
Blueness balance display.
The beneficial effects of the invention are as follows：The situation of prior art is different from, the present invention is by FPC or light-blocking structure
Ink coating is added, to be modified to the spectrum in light guide plate, the consistent of the light color that backlight module is emitted can be ensured, from
And weaken even color difference eliminating.
Brief description of the drawings
Fig. 1 is the structural representation of the first embodiment of backlight module of the present invention.
Fig. 2 is the structural representation of the second embodiment of backlight module of the present invention.
Fig. 3 is the chromaticity coordinates pickup area figure of embodiments of the invention.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present disclosure clearer, below in conjunction with the embodiment of the present disclosure
Accompanying drawing, the technical scheme of the embodiment of the present disclosure is clearly and completely described.Obviously, described embodiment is this public affairs
The part of the embodiment opened, rather than whole embodiments.Based on described embodiment of the disclosure, ordinary skill
The every other embodiment that personnel are obtained on the premise of without creative work, belong to the scope of disclosure protection.
Unless otherwise defined, the technical term or scientific terminology that the disclosure uses, which are should be in disclosure art, to be had
The ordinary meaning that the personage for having general technical ability is understood.The similar word meaning such as the " comprising " or "comprising" that are used in the disclosure
Point out that the element before the existing word either cover the element for appearing in the word presented hereinafter or object and its be equal by object, without
Exclude other elements or object.
Under study for action, inventors herein have recognized that：Because in backlight module there is aberration and light guide plate in light source in itself
Send the absorption of light to light source, the backlight that backlight module provides can produce aberration, LED white lights mixed with gold-tinted by blue light and
Into.Blue light wavelength is stronger in 570-585nm, yellow wavelengths length, the ability of its diffraction in 440-475nm, yellow wavelengths.Therefore it is yellow
Luminous energy shows backlight close to light source lateral deviation indigo plant, light source offside more around the offside of directive light source inside light guide plate
Yellow optical effect partially.
An at least embodiment of the invention provides a kind of backlight module and its visual color ameliorative way.The backlight module passes through
Scattering state is presented with red light in the Huang excited on ink layer white oil, and light is largely trapped in close to source ends, without
The blue light that scattering state is presented can be inspired by afterbody frequency modulated light structure, therefore the light is most of toward the diffusion of light source offside
It is trapped in close to light source contralateral side, without being transmitted toward source ends.The present invention can ensure backlight module emergent light and it is uniform
Degree, and weaken even color difference eliminating.
Light-guide device provided in an embodiment of the present invention and preparation method thereof and backlight module are carried out below in conjunction with the accompanying drawings
Explanation.
Embodiment one
A kind of backlight module provided by the invention, as described in Figure 1, the backlight module includes：
LED light source 12；
Light guide plate 13, the first viewing area A, middle area B and the second viewing area C are formed, wherein, the first viewing area A and LED
Light source 12 is oppositely arranged, and middle area B abuts with the first viewing area A, the second viewing area C respectively；FPC11 is arranged at the LED light
The top in source 12；
Ink layer 14, between light guide plate 13 and the FPC11；
Light-blocking structure 15, it is adjacent to the second viewing area C；It is made up of lily PC materials.
Backlight module visual color ameliorative way of the present invention, it is characterised in that further comprising the steps of：
1) acquisition module, the light guide plate 13 of display module and the model of LED light source 12 are obtained, and for the light guide plate 13 of this model
Determine the first viewing area A, middle area B, the second viewing area C chromaticity coordinates；
2) Huang of input module, in a computer the viewing area A of input record light guide plate 13 first, middle area B and the second viewing area C
The chromaticity coordinates data of coloured light line and red light；
3) processing module, the first viewing area A, middle area B and the second viewing area C are calculated based on the data inputted in input step
Between aberration；Determine ink layer 14 and the printing oil proportion relation being in the light in framework.
To add red toner 0.2g inside 1000g white PC materials；Exemplified by yellow toner 0.3g；Backlight chromaticity coordinate with
Conventional backlit measure of merit data are as follows：
Table 1
。
The first viewing area and the second viewing area chromaticity coordinates test data are small compared with full white oil backlight difference as shown in Table 1, LED
After the reflection of ink layer 14, its red toner, yellow toner can be excited to week the light that light source 12 is sent by LED light line
Enclose and diffuse out partially yellow, the light with red partially, the yellow of the scattering, red light mixes with blue ray of the backlight close to light source
Close, make backlight that inclined sodium yellow counterbalance effect also be presented close to source ends, dissipated because the Huang excited on white oil is presented with red light
State is penetrated, therefore the light is largely trapped in close to source ends, without being spread toward light source offside, backlight module visual color
Improved.
Embodiment two
A kind of backlight module visual color ameliorative way provided by the invention, it is further comprising the steps of：
1) acquisition module, the light guide plate 13 of display module and the model of LED light source 12 are obtained, and for the light guide plate 13 of this model
Determine the first viewing area A, middle area B, the second viewing area C chromaticity coordinates；
2) Huang of input module, in a computer the viewing area A of input record light guide plate 13 first, middle area B and the second viewing area C
The chromaticity coordinates data of coloured light line and red light；
3) processing module, the first viewing area A, middle area B and the second viewing area C are calculated based on the data inputted in input step
Between aberration；Determine ink layer 14 and the printing oil proportion relation being in the light in framework.
This scheme after LED light line is mapped to frequency modulated light structure 15, excites this by adding green toner in the inside of frequency modulated light structure 15
Green toner, the frequency modulated light structure 15 is set to scatter partially blue light.Dissipated because the blue light that afterbody frequency modulated light structure 15 excites is presented
State is penetrated, therefore the light is largely trapped in close to light source contralateral side, without transmitting green toner toward source ends, with
Add exemplified by green toner 10g 1000g whites PC material the inside；Backlight chromaticity coordinate and conventional backlit measure of merit data are as follows：
Table 2
The first viewing area and the second viewing area chromaticity coordinates test data are small compared with full white oil backlight difference as shown in Table 2, LED light
After line is mapped to frequency modulated light structure 15, the green toner is excited.The frequency modulated light structure 15 is set to scatter partially blue light, due to frequency modulated light structure
Scattering state is presented in 15 blue lights excited, therefore the light is largely trapped in close to light source contralateral side, without past light source
End transmits；
Ink layer 14, the light-blocking structure 15 of backlight module of the present invention determine the addition ratio of ink according to the dispersion effect of light guide plate 13
Example, improve the uniformity of light extraction and weaken even color difference eliminating, by the above-mentioned means, the present invention can ensure that backlight module goes out
Penetrate light and the uniformity, and weaken even color difference eliminating, obtain partially blue photo-equilibrium display effect.
Described above, the only embodiment of the disclosure, but the protection domain of the disclosure is not limited thereto is any
Those familiar with the art can readily occur in change or replacement in the technical scope that the disclosure discloses, and should all contain
Cover within the protection domain of the disclosure.Therefore, the protection domain of the disclosure should be based on the protection scope of the described claims.
Claims (7)
1. a kind of backlight module, it includes：
LED light source；
Light guide plate, it is made up of the first viewing area, middle area and the second viewing area, wherein, first display
Area is oppositely arranged with the LED light source, and the middle area abuts with the first viewing area, the second viewing area respectively；
FPC, it is arranged at the top of the LED light source；
Ink layer, between the light guide plate and the FPC；
Light-blocking structure, it is adjacent to the second viewing area；It is made up of lily PC materials.
2. backlight module according to claim 1, it is characterised in that：The ink layer corresponds to light guide plate and LED light source
Interstitial site is set.
3. backlight module according to claim 1, it is characterised in that：The ink layer is by following composition and weight percent
Than composition, form inclined yellow balance with the light guide plate and show；In unit mass：
Mute white ink：1000g；
Red toner：0.198-0.213g；
Yellow toner：0.295-0.303g.
4. backlight module visual color ameliorative way according to claim 1, it is characterised in that：The light-blocking structure ink
Addition 9.98-10.16g green toners, form blueness balance partially with the light guide plate and show.
5. a kind of backlight module visual color ameliorative way, it is characterised in that comprise the following steps：
Acquisition module, the light guide plate of display module and the model of LED light source are obtained, and for the light guide plate measure first of this model
Viewing area, middle area, the chromaticity coordinates of the second viewing area；
Input module, the sodium yellow of computer input record light guide plate first viewing area, middle area and the second viewing area
The chromaticity coordinates data of line and red light；
Processing module, the first viewing area, middle area and the second display are calculated based on the data inputted in input step
Aberration between area；Determine ink layer and the printing oil proportion relation being in the light in framework.
6. backlight module visual color ameliorative way according to claim 5, it is characterised in that：The ink layer is by following
Constituent and percentage by weight composition, form inclined yellow balance with light guide plate and show, in unit mass：
Mute white ink：1000g；
Red toner：0.198-0.213g；
Yellow toner：0.295-0.303g.
7. backlight module visual color ameliorative way according to claim 5, it is characterised in that：The light-blocking structure ink
Addition 9.98-10.16g green toners, form blueness balance partially with the light guide plate and show.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710711578.1A CN107450232A (en) | 2017-08-18 | 2017-08-18 | A kind of backlight module and its visual color ameliorative way |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710711578.1A CN107450232A (en) | 2017-08-18 | 2017-08-18 | A kind of backlight module and its visual color ameliorative way |
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| Publication Number | Publication Date |
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| CN107450232A true CN107450232A (en) | 2017-12-08 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108710449A (en) * | 2018-05-02 | 2018-10-26 | Oppo广东移动通信有限公司 | Electronic device |
| CN110095191A (en) * | 2019-03-01 | 2019-08-06 | 华灿光电(苏州）有限公司 | The method of inspection and device of light-emitting diode chip for backlight unit stepping color difference |
| CN110568668A (en) * | 2019-10-09 | 2019-12-13 | 东莞市钰晟电子科技有限公司 | Novel backlight source |
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| CN203745771U (en) * | 2013-05-24 | 2014-07-30 | 上海天马微电子有限公司 | Backlight module and liquid crystal display device |
| CN104061496A (en) * | 2014-05-29 | 2014-09-24 | 瑞仪光电股份有限公司 | Backlight module |
| CN105156940A (en) * | 2014-06-13 | 2015-12-16 | 扬升照明股份有限公司 | Backlight module |
| CN205982937U (en) * | 2016-09-14 | 2017-02-22 | 信利半导体有限公司 | Backlight and liquid crystal display module |
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| CN202884679U (en) * | 2012-10-08 | 2013-04-17 | 京东方科技集团股份有限公司 | Light-leaking-proof backlight body and liquid crystal display module thereof |
| CN203745771U (en) * | 2013-05-24 | 2014-07-30 | 上海天马微电子有限公司 | Backlight module and liquid crystal display device |
| CN104061496A (en) * | 2014-05-29 | 2014-09-24 | 瑞仪光电股份有限公司 | Backlight module |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108710449A (en) * | 2018-05-02 | 2018-10-26 | Oppo广东移动通信有限公司 | Electronic device |
| CN108710449B (en) * | 2018-05-02 | 2022-03-22 | Oppo广东移动通信有限公司 | Electronic device |
| CN110095191A (en) * | 2019-03-01 | 2019-08-06 | 华灿光电(苏州）有限公司 | The method of inspection and device of light-emitting diode chip for backlight unit stepping color difference |
| CN110095191B (en) * | 2019-03-01 | 2021-02-19 | 华灿光电(苏州）有限公司 | Method and device for detecting grading chromatic aberration of light-emitting diode chip |
| CN110568668A (en) * | 2019-10-09 | 2019-12-13 | 东莞市钰晟电子科技有限公司 | Novel backlight source |
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