CN106019719A - Method for reducing side-emitting-type backlight leakage and uniformizing light-emitting-side edge backlight - Google Patents
Method for reducing side-emitting-type backlight leakage and uniformizing light-emitting-side edge backlight Download PDFInfo
- Publication number
- CN106019719A CN106019719A CN201610635646.6A CN201610635646A CN106019719A CN 106019719 A CN106019719 A CN 106019719A CN 201610635646 A CN201610635646 A CN 201610635646A CN 106019719 A CN106019719 A CN 106019719A
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- China
- Prior art keywords
- light
- emitting
- guide plate
- diffusion sheet
- light source
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- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000009792 diffusion process Methods 0.000 claims abstract description 19
- 239000004973 liquid crystal related substance Substances 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 abstract 1
- 229910052709 silver Inorganic materials 0.000 abstract 1
- 239000004332 silver Substances 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 239000002699 waste material Substances 0.000 description 2
- 238000000149 argon plasma sintering Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
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
- G02F1/133602—Direct backlight
- G02F1/133605—Direct backlight including specially adapted reflectors
-
- 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
- G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
- G02B6/0031—Reflecting element, sheet or layer
-
- 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
- G02F1/133602—Direct backlight
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
-
- 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
- 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
- G02F1/133602—Direct backlight
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
- G02F1/133607—Direct backlight including a specially adapted diffusing, scattering or light controlling members the light controlling member including light directing or refracting elements, e.g. prisms or lenses
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 relates to a method for reducing side-emitting-type backlight leakage and uniformizing light-emitting-side edge backlight. The method comprises the following steps: S1: eliminating original black light extincting ink and light reflecting strips; S2: pasting and covering silver reflective ink on the light emitting side of a diffusion part. According to the method, the light source utilization ratio of a product is improved, and meanwhile the production process is simplified.
Description
Technical field
The present invention relates to a kind of side entrance back and reduce light leakage and the uniform method of incident side edge backlit.
Background technology
Refer to Fig. 1, the side entrance back display devices such as existing LED/LCD, structure is substantially formed by with lower part: backboard 1, reflector plate 2, light guide plate 3, diffusion sheet 4, prismatic lens group 5(are expansible), liquid crystal display screen 6 and light source 7 form, described prismatic lens group includes the 1st to the n-th prismatic lens, and quantity can control according to the actual requirements.Lamp source is positioned at light guide plate side, and because technology and structure limit, the light that light source sends passes through the incoming light guide plate of air, causes waste and the reduction of light efficiency of part light source, sometimes for improving backlight efficiency, needs the power strengthening light source to provide display effect.
Because prior art cannot eliminate the gap between light source and light guide plate, there is the phenomenon of light source scattering waste.Existing way is to paste reflecting strips on gap to leak to reduce light, covers uneven bright band at diffusion sheet incident side printing delustring ink, adds the cost of material and operation.
Summary of the invention
In view of this, it is an object of the invention to provide a kind of side entrance back and reduce light leakage and the uniform method of incident side edge backlit, while improving product light source utilization rate, simplify production technology.
For achieving the above object, the present invention adopts the following technical scheme that a kind of side entrance back reduces light leakage and the uniform method of incident side edge backlit, a kind of side entrance back display device is provided, described backlight display device includes backboard, reflector plate, light guide plate, diffusion sheet, prismatic lens group and the liquid crystal display screen arranged from bottom to top, the side of described light guide plate is provided with light source, the upper side of described diffusion sheet light guide plate corresponding with downside is corresponding with the interstitial site of light source is covered with black matt ink and luminous reflectance bar, it is characterized in that, comprise the following steps:
Step S1: eliminate original black matt ink and luminous reflectance bar；
Step S2: the incident side at described diffusion sheet pastes silvery reflective ink.
Further, described silvery reflective ink correspondence light guide plate is arranged with the interstitial site of light source.
Further, described silvery reflective ink is arranged at upper side or the downside of described diffusion sheet.
The present invention compared with prior art has the advantages that
1, the present invention reflects leakage light, improves the utilization rate of light source；
2, the present invention improves Boris Edge Lighting band, makes marginal position light efficiency uniform；
3, present invention eliminates original luminous reflectance bar, while Simplified flowsheet, reduce Material Cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing side entrance back display device.
Fig. 2 is existing diffusion sheet and luminous reflectance bar schematic diagram.
Fig. 3 is the partial schematic diagram of the light source of existing structure, light guide plate and diffusion sheet.
Fig. 4 is the partial schematic diagram of the light source of one embodiment of the invention, light guide plate and diffusion sheet.
In figure: 1-backboard；2-reflector plate；3-light guide plate；4-diffusion sheet；41-luminous reflectance bar；42-black matt ink；43-silvery reflective ink；5-prismatic lens group；6-liquid crystal display screen；7-light source.
Detailed description of the invention
Below in conjunction with the accompanying drawings and embodiment the present invention will be further described.
The light source 7 of existing structure is positioned at the side of light guide plate 3, has gap between the two.Refer to Fig. 2 and Fig. 3, even back when prior art is in order to reduce light guide plate 3 and the light scattering loss of light source 7 gap location and improve light belt, on diffusion sheet 4, corresponding interstitial site pastes luminous reflectance bar 41 and black matt ink 42.This technology not only operation luminous reflectance bar that is loaded down with trivial details and that paste easily tilts and causes effect bad.
Refer to Fig. 4, on the basis of existing technology, the side entrance back that the present embodiment provides reduces light leakage and the uniform method of incident side edge backlit comprises the following steps:
Step S1: eliminate original black matt ink and luminous reflectance bar；
Step S2: paste silvery reflective ink 43 with the interstitial site of light source 7 at the incident side correspondence light guide plate 3 of described diffusion sheet 4, and described silvery reflective ink is arranged at the upper side of described diffusion sheet, in other embodiments, described silvery reflective ink may also set up in the downside of described diffusion sheet.
Comparison diagram 3 and Fig. 4, the present embodiment eliminates luminous reflectance bar 41 originally, has changed the material of black matt ink 42 simultaneously, change the silvery reflective ink 43 with light diffuse-reflectance effect into, while improving light source utilization rate, the light band caused because of scattered light can be eliminated, improve even back degree；It addition, also eliminate the hidden danger causing effect bad because luminous reflectance bar tilts while reducing this supplies consumption of luminous reflectance bar.
The foregoing is only presently preferred embodiments of the present invention, all impartial changes done according to scope of the present invention patent and modification, all should belong to the covering scope of the present invention.
Claims (3)
1. a side entrance back reduces light leakage and the uniform method of incident side edge backlit, a kind of side entrance back display device is provided, described backlight display device includes backboard, reflector plate, light guide plate, diffusion sheet, prismatic lens group and the liquid crystal display screen arranged from bottom to top, the side of described light guide plate is provided with light source, the upper side of described diffusion sheet light guide plate corresponding with downside is corresponding with the interstitial site of light source is covered with black matt ink and luminous reflectance bar, it is characterized in that, comprise the following steps:
Step S1: eliminate original black matt ink and luminous reflectance bar；
Step S2: the incident side at described diffusion sheet pastes silvery reflective ink.
Side entrance back the most according to claim 1 reduces light leakage and the uniform method of incident side edge backlit, it is characterised in that: described silvery reflective ink correspondence light guide plate is arranged with the interstitial site of light source.
Side entrance back the most according to claim 1 reduces light leakage and the uniform method of incident side edge backlit, it is characterised in that: described silvery reflective ink is arranged at upper side or the downside of described diffusion sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610635646.6A CN106019719A (en) | 2016-08-05 | 2016-08-05 | Method for reducing side-emitting-type backlight leakage and uniformizing light-emitting-side edge backlight |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610635646.6A CN106019719A (en) | 2016-08-05 | 2016-08-05 | Method for reducing side-emitting-type backlight leakage and uniformizing light-emitting-side edge backlight |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106019719A true CN106019719A (en) | 2016-10-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610635646.6A Pending CN106019719A (en) | 2016-08-05 | 2016-08-05 | Method for reducing side-emitting-type backlight leakage and uniformizing light-emitting-side edge backlight |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106019719A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110161753A (en) * | 2019-05-31 | 2019-08-23 | 厦门天马微电子有限公司 | A kind of backlight module and display device |
| CN110444109A (en) * | 2019-07-26 | 2019-11-12 | Oppo（重庆）智能科技有限公司 | A kind of display screen component and display equipment |
| CN110673389A (en) * | 2019-09-09 | 2020-01-10 | 武汉华星光电技术有限公司 | Backlight module and display device |
| CN112166353A (en) * | 2018-05-22 | 2021-01-01 | 3M创新有限公司 | Optical film with light controlling edge |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101419361A (en) * | 2007-10-24 | 2009-04-29 | 株式会社日立制作所 | Liquid crystal display |
| CN101876420A (en) * | 2009-04-30 | 2010-11-03 | 骏升科技（扬州）有限公司 | Light guide plate |
| CN202017999U (en) * | 2011-04-22 | 2011-10-26 | 惠州Tcl移动通信有限公司 | Light guide structure |
| CN102252175A (en) * | 2010-05-18 | 2011-11-23 | 扬升照明股份有限公司 | Light source module |
| CN203551830U (en) * | 2013-08-29 | 2014-04-16 | 深圳市汇创达科技有限公司 | Printing reflection light guide film and material strap |
-
2016
- 2016-08-05 CN CN201610635646.6A patent/CN106019719A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101419361A (en) * | 2007-10-24 | 2009-04-29 | 株式会社日立制作所 | Liquid crystal display |
| CN101876420A (en) * | 2009-04-30 | 2010-11-03 | 骏升科技（扬州）有限公司 | Light guide plate |
| CN102252175A (en) * | 2010-05-18 | 2011-11-23 | 扬升照明股份有限公司 | Light source module |
| CN202017999U (en) * | 2011-04-22 | 2011-10-26 | 惠州Tcl移动通信有限公司 | Light guide structure |
| CN203551830U (en) * | 2013-08-29 | 2014-04-16 | 深圳市汇创达科技有限公司 | Printing reflection light guide film and material strap |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112166353A (en) * | 2018-05-22 | 2021-01-01 | 3M创新有限公司 | Optical film with light controlling edge |
| US11906759B2 (en) | 2018-05-22 | 2024-02-20 | 3M Innovative Properties Company | Optical film with light control edge |
| CN110161753A (en) * | 2019-05-31 | 2019-08-23 | 厦门天马微电子有限公司 | A kind of backlight module and display device |
| CN110444109A (en) * | 2019-07-26 | 2019-11-12 | Oppo（重庆）智能科技有限公司 | A kind of display screen component and display equipment |
| CN110673389A (en) * | 2019-09-09 | 2020-01-10 | 武汉华星光电技术有限公司 | Backlight module and display device |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161012 |
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| RJ01 | Rejection of invention patent application after publication |