CN105759490A - Brightness enhancement film, display module and display device - Google Patents
Brightness enhancement film, display module and display device Download PDFInfo
- Publication number
- CN105759490A CN105759490A CN201610278629.1A CN201610278629A CN105759490A CN 105759490 A CN105759490 A CN 105759490A CN 201610278629 A CN201610278629 A CN 201610278629A CN 105759490 A CN105759490 A CN 105759490A
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- China
- Prior art keywords
- enhancement film
- prism portion
- bright enhancement
- polaroid
- liquid crystal
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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.)
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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
- G02F1/133504—Diffusing, scattering, diffracting elements
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
-
- 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
- G02F1/133504—Diffusing, scattering, diffracting elements
- G02F1/133507—Films for enhancing the luminance
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- 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)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Liquid Crystal Display Device Control (AREA)
Abstract
The embodiment of the invention relates to the technical field of display, and discloses a brightness enhancement film, a display module and a display device.The brightness enhancement film comprises a base layer and a prism portion, wherein the prism portion is arranged on the base layer and is opposite to a black matrix of a colorful film substrate in position.Multiple transmission areas which are distributed in an array mode are defined by the prism portion, and light is refracted to the adjacent transmission areas.The brightness enhancement film is applied in the display module.Light emitted by a backlight module to the transmission areas can be directly emitted out through the transmission areas.Light emitted by the backlight module to the prism portion is refracted by the prism portion to the adjacent transmission areas and then emitted out through the transmission areas.Due to the fact that the prism portion is opposite to the black matrix of the colorful film substrate in position, compared with the prior art, light emitted by the backlight module to the black matrix area can be effectively utilized, so that the transmittance of the display device is improved, power consumption of the display device is lowered, and energy is saved.
Description
Technical field
The present invention relates to Display Technique field, particularly relate to a kind of bright enhancement film, display module and display device.
Background technology
In panel display apparatus, Thin Film Transistor-LCD (ThinFilmTransistorLiquidCrystalDisplay, it is called for short TFT-LCD) there is the features such as volume is little, low in energy consumption, manufacturing cost is relatively low and radiationless, occupy leading position in current flat panel display market.
As depicted in figs. 1 and 2, the structure of the display module of existing transmission-type TFT-LCD generally includes backlight module 1 and is positioned at the liquid crystal panel 3 of (namely display device is when generally using, and these parts are near the side of beholder) on front side of backlight module 1；Liquid crystal panel 3 includes from rear to front array base palte 31, liquid crystal layer 32 and the color membrane substrates 33 set gradually；Generally also set up the first polaroid 2 at the dorsal part (namely display device is when generally using, and these parts are away from the side of beholder) of liquid crystal panel 3, also set up the second polaroid 4 in the front side of liquid crystal panel 3.Color membrane substrates 33 includes: defines the black matrix 331 of the multiple transparent areas being arranged in array, and is correspondingly arranged at the pixel color lump 332 in the plurality of transparent area.Backlight can be filtered by pixel color lump 332, thus producing red green blue tricolor, controls the electric field of liquid crystal layer, by red green blue tricolor with different strong and weak ratio mixing, it is possible to make display device present various color.Black matrix 331 is then used for blocking veiling glare, it is prevented that produce light leak between pixel.
Owing to liquid crystal panel 3 itself is not luminous, therefore, backlight module 1 is requisite for transmission-type TFT-LCD.The commonly used LED of current backlight module (light-emittingdiode, light emitting diode are called for short LED) is as light source.In realizing process of the present invention, inventor have found that in prior art, at least there are the following problems: as shown in Figure 3, the display module of existing TFT-LCD is operationally, backlight itself can be filtered by pixel color lump 332, light also can be absorbed by black matrix 331, and this causes that the transmitance of liquid crystal panel 3 is relatively low.In order to ensure display brightness, it usually needs increase the power consumption of LED in backlight module 1, improving the brightness of backlight module 1 and then the display brightness of raising liquid crystal panel 3 with this, therefore, the power consumption of existing display device is relatively larger.
Summary of the invention
Embodiments provide a kind of bright enhancement film, display module and display device, to improve the transmitance of display device, reduce the power consumption of display device.
The bright enhancement film that the embodiment of the present invention provides, including basic unit and be arranged in basic unit and the prism portion relative with the black matrix position of color membrane substrates, described prism portion defines the multiple regional transmissions being arranged in array and light reflects the regional transmission that directive is adjacent.
Optionally, the cross sectional shape in described prism portion is isosceles triangle or right angled triangle.
Preferably, the drift angle place in described prism portion has rounding.
Optionally, described basic unit material is polyethylene terephthalate, and/or, described prism portion material is the polymethyl methacrylate after ultraviolet light polymerization.
It is also preferred that the left described bright enhancement film also includes: be positioned at basic unit's diffusion layer away from side, prism portion.
The bright enhancement film that the above embodiment of the present invention provides is applied in display module, the light of backlight module directive regional transmission directly can penetrate via regional transmission, and the light in backlight module directive prism portion penetrates then through by regional transmission after adjacent regional transmission refraction through prism portion.Owing to prism portion is relative with the black matrix position of color membrane substrates, compared to existing technology, the light in backlight module directive black matrix region can be used effectively, thus improving the transmitance of display device, reducing the power consumption of display device, having saved the energy.
The embodiment of the present invention also provides for a kind of display module, including: the backlight module that order is arranged, the bright enhancement film according to aforementioned any technology scheme, and liquid crystal panel, wherein: the color membrane substrates of described liquid crystal panel includes the black matrix defining the multiple transparent areas being arranged in array, and is correspondingly arranged at the multiple pixel color lumps in the plurality of transparent area；The prism portion of described bright enhancement film is arranged towards backlight module.
Optionally, described display module also includes the first polaroid and the second polaroid, and described first polaroid is between bright enhancement film and liquid crystal panel, and described second polaroid is positioned at the side of liquid crystal panel backlight module dorsad.
It is also preferred that the left described bright enhancement film and the first polaroid are integrated composite construction.
Optionally, described display module also includes the first polaroid and the second polaroid, and described first polaroid is between backlight module and bright enhancement film, and described second polaroid is positioned at the side of liquid crystal panel backlight module dorsad.
Compared to existing technology, owing to the light in backlight module directive black matrix region can be used effectively, therefore show that module has higher transmitance, and power consumption is relatively low.
The embodiment of the present invention also provides for a kind of display device, including the display module according to aforementioned any technology scheme.Existing display device compared by this display device, has higher transmitance, and power consumption is relatively low.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the Rotating fields schematic diagram of existing display module；
Fig. 2 is color membrane substrates schematic top plan view；
Fig. 3 be existing display module go out light schematic diagram；
Fig. 4 is the schematic cross-section of one embodiment of the invention bright enhancement film；
Fig. 5 is the schematic top plan view of one embodiment of the invention bright enhancement film；
Fig. 6 is the schematic cross-section of another embodiment of the present invention bright enhancement film；
Fig. 7 is the Rotating fields schematic diagram of one embodiment of the invention display module；
Fig. 8 be display module shown in Fig. 7 go out light schematic diagram；
Fig. 9 be another embodiment of the present invention display module go out light schematic diagram.
Accompanying drawing labelling:
Prior art part:
1-backlight module；2-the first polaroid；3-liquid crystal panel；4-the second polaroid；31-array base palte；
32-liquid crystal layer；33-color membrane substrates；331-black matrix；332-pixel color lump.
Embodiment of the present invention part:
5-backlight module；6-the first polaroid；7-liquid crystal panel；8-the second polaroid；71-array base palte；
72-liquid crystal layer；73-color membrane substrates；731-black matrix；732-pixel color lump；9-bright enhancement film；
91-basic unit；92-prism portion；93-regional transmission；94-diffusion layer.
Detailed description of the invention
For making the purpose of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, all other embodiments that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of protection of the invention.
As shown in Figure 4 and Figure 5, the bright enhancement film 9 that the embodiment of the present invention provides, including basic unit 91 and be arranged in basic unit 91 and the prism portion 92 relative with the black matrix position of color membrane substrates, prism portion 92 defines the multiple regional transmissions 93 being arranged in array and light reflects the adjacent regional transmission of directive 93.
As it is shown in fig. 7, for transmissive liquid crystal display equipment, generally provided backlight by backlight module 5 for liquid crystal panel 7.Liquid crystal panel 7 includes the array base palte 71 and the color membrane substrates 73 that are oppositely arranged and the liquid crystal layer 72 between array base palte 71 and color membrane substrates 73, and wherein, the relative color membrane substrates 73 of array base palte 71 is closer to backlight module 5.Color membrane substrates 73 includes the black matrix 731 defining the multiple transparent areas being arranged in array, and is correspondingly arranged at the multiple pixel color lumps 732 in the plurality of transparent area.
Conventionally, as light can be absorbed by black matrix, this part light of directive black matrix is wasted, thus causing that the transmitance of liquid crystal panel is relatively low, and power consumption is higher.
The bright enhancement film 9 that the above embodiment of the present invention provides is applied in display module, as shown in Figure 8, bright enhancement film 9 is arranged between backlight module 5 and liquid crystal panel 7, the prism portion 92 of bright enhancement film 9 is relative with black matrix 731 position of color membrane substrates 73, the regional transmission 93 of bright enhancement film 9 is relative with pixel color lump 732 position of color membrane substrates 73, the light of the regional transmission 93 of backlight module 5 directive bright enhancement film 9 directly can penetrate via regional transmission 93, the light in the prism portion 92 of backlight module 5 directive bright enhancement film 9 penetrates then through by regional transmission 93 after adjacent regional transmission 93 refraction through prism portion 92.Prism portion 92 is for changing the light path injecting light, by the shape in prism portion is designed, what can make being diagrammatically only by property in the regional transmission 93, figure that light directive after injection is adjacent illustrates injecting and penetrating direction of light, and the refractive light paths in prism portion 92 is then not shown.Owing to prism portion 92 is relative with black matrix 731 position of color membrane substrates 73, compared to existing technology, the light in backlight module 5 directive black matrix 731 region can be used effectively, thus improving the transmitance of display device, reduce the power consumption of display device, save the energy.
The concrete cross sectional shape in prism portion 92 is not limit.As shown in Figure 8, in this embodiment, the cross sectional shape in prism portion 92 is isosceles triangle, it is possible to two sides two adjacent respectively regional transmissions 93 reflect light.Refer to shown in Fig. 9, in this embodiment, the cross sectional shape in prism portion 92 is right angled triangle, it is possible to the regional transmission 93 adjacent to hypotenuse side reflects light.
In a preferred embodiment of the invention, the drift angle place in prism portion 92 has rounding (not shown).Owing to prism portion 92 belongs to micro structure, if to bright enhancement film 9 misoperation, bright enhancement film 9 can be caused to scratch and to scrap, adopt this structural design to be then effectively reduced bright enhancement film 9 and scratch, improve qualification rate and the packaging efficiency of product.
In embodiments of the present invention, the concrete material type in basic unit 91 and prism portion 92 is not limit.Such as, basic unit 91 material can be polyethylene terephthalate (PET), and prism portion 92 material can be the polymethyl methacrylate (PMMA) after ultraviolet light polymerization.As shown in Figure 6, in order to make the light that bright enhancement film 9 penetrates more uniform, it is advantageous to, bright enhancement film 9 may also include the diffusion layer 94 being positioned at basic unit 91 away from side, prism portion 92.
As shown in Figure 8 and Figure 9, the embodiment of the present invention also provides for a kind of display module, including: the backlight module 5 of order setting, bright enhancement film 9, and liquid crystal panel 7, wherein: the color membrane substrates 73 of liquid crystal panel 7 includes the black matrix 731 defining the multiple transparent areas being arranged in array, and is correspondingly arranged at the multiple pixel color lumps 732 in multiple transparent area；The prism portion 92 of bright enhancement film 9 is arranged towards backlight module 5.
Display module normally also includes the first polaroid 6 and the second polaroid 8 that liquid crystal panel 7 both sides are arranged; as shown in Figure 8; in this embodiment, the first polaroid 6 is between bright enhancement film 9 and liquid crystal panel 7, and the second polaroid 8 is positioned at the side of liquid crystal panel 7 backlight module 5 dorsad.Bright enhancement film 9 and the first polaroid 6 can be separate parts, it is also possible to be integrated composite construction.When bright enhancement film 9 and the first polaroid 6 are integrated composite construction, it is possible to simplify the assembling of backlight module, be conducive to improving packaging efficiency.
In other embodiments of the invention, the first polaroid can also between backlight module and bright enhancement film, and the second polaroid is positioned at the side of liquid crystal panel backlight module dorsad.
Compared to existing technology, owing to the light in backlight module directive black matrix region can be used effectively, therefore show that module has higher transmitance, and power consumption is relatively low.
The embodiment of the present invention also provides for a kind of display device, including the display module according to aforementioned any technology scheme.Existing display device compared by this display device, has higher transmitance, and power consumption is relatively low.The particular type of display device is not limit, for instance, it is possible to for liquid crystal TV set, liquid crystal display, liquid crystal advertisement screen, panel computer, mobile phone etc..
Last it is noted that above example is only in order to illustrate technical scheme, it is not intended to limit；Although the present invention being described in detail with reference to previous embodiment, it will be understood by those within the art that: the technical scheme described in foregoing embodiments still can be modified by it, or wherein portion of techniques feature is carried out equivalent replacement；And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (10)
1. a bright enhancement film, it is characterised in that including basic unit and be arranged in basic unit and the prism portion relative with the black matrix position of color membrane substrates, described prism portion defines the multiple regional transmissions being arranged in array and light reflects the regional transmission that directive is adjacent.
2. bright enhancement film according to claim 1, it is characterised in that the cross sectional shape in described prism portion is isosceles triangle or right angled triangle.
3. bright enhancement film according to claim 2, it is characterised in that the drift angle place in described prism portion has rounding.
4. bright enhancement film according to claim 1, it is characterised in that described basic unit material is polyethylene terephthalate, and/or, described prism portion material is the polymethyl methacrylate after ultraviolet light polymerization.
5. the bright enhancement film according to any one of Claims 1 to 4, it is characterised in that described bright enhancement film also includes: be positioned at basic unit's diffusion layer away from side, prism portion.
6. a display module, it is characterized in that, including: the backlight module that order is arranged, the bright enhancement film according to any one of Claims 1 to 5, and liquid crystal panel, wherein: the color membrane substrates of described liquid crystal panel includes the black matrix defining the multiple transparent areas being arranged in array, and is correspondingly arranged at the multiple pixel color lumps in the plurality of transparent area；The prism portion of described bright enhancement film is arranged towards backlight module.
7. display module according to claim 6, it is characterised in that also including the first polaroid and the second polaroid, described first polaroid is between bright enhancement film and liquid crystal panel, and described second polaroid is positioned at the side of liquid crystal panel backlight module dorsad.
8. display module according to claim 7, it is characterised in that described bright enhancement film and the first polaroid are integrated composite construction.
9. display module according to claim 6, it is characterised in that also including the first polaroid and the second polaroid, described first polaroid is between backlight module and bright enhancement film, and described second polaroid is positioned at the side of liquid crystal panel backlight module dorsad.
10. a display device, it is characterised in that include the display module according to any one of claim 6～9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610278629.1A CN105759490A (en) | 2016-04-28 | 2016-04-28 | Brightness enhancement film, display module and display device |
| PCT/CN2016/099592 WO2017185595A1 (en) | 2016-04-28 | 2016-09-21 | Brightness enhancement film, display module and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610278629.1A CN105759490A (en) | 2016-04-28 | 2016-04-28 | Brightness enhancement film, display module and display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105759490A true CN105759490A (en) | 2016-07-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610278629.1A Pending CN105759490A (en) | 2016-04-28 | 2016-04-28 | Brightness enhancement film, display module and display device |
Country Status (1)
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| CN (1) | CN105759490A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105974652A (en) * | 2016-07-21 | 2016-09-28 | 京东方科技集团股份有限公司 | Display penal and preparation method thereof and display device |
| WO2017185595A1 (en) * | 2016-04-28 | 2017-11-02 | 乐视控股（北京）有限公司 | Brightness enhancement film, display module and display device |
| CN107608114A (en) * | 2017-09-29 | 2018-01-19 | 京东方科技集团股份有限公司 | Display base plate, display device and driving method |
| CN108776412A (en) * | 2018-08-10 | 2018-11-09 | Oppo广东移动通信有限公司 | Backlight module, liquid crystal display die set and electronic device |
| CN110091529A (en) * | 2019-04-17 | 2019-08-06 | 深圳市德仓科技有限公司 | Prismatic lens and preparation method thereof, equipment, backlight module, display screen and terminal |
| CN114488599A (en) * | 2022-01-25 | 2022-05-13 | Tcl华星光电技术有限公司 | Display module and mobile terminal |
| CN115857217A (en) * | 2022-12-16 | 2023-03-28 | 京东方科技集团股份有限公司 | Display module and display device |
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| CN203337950U (en) * | 2013-07-24 | 2013-12-11 | 北京京东方光电科技有限公司 | Optical structure and liquid crystal display device |
| CN104157669A (en) * | 2014-04-16 | 2014-11-19 | 上海天马有机发光显示技术有限公司 | Organic light emitting display panel and manufacturing method and display device thereof |
| CN104656180A (en) * | 2015-03-18 | 2015-05-27 | 京东方科技集团股份有限公司 | Polaroid, preparation method of polaroid and display device |
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| CN103033977A (en) * | 2012-12-14 | 2013-04-10 | 京东方科技集团股份有限公司 | Liquid crystal display device |
| CN203337950U (en) * | 2013-07-24 | 2013-12-11 | 北京京东方光电科技有限公司 | Optical structure and liquid crystal display device |
| CN104157669A (en) * | 2014-04-16 | 2014-11-19 | 上海天马有机发光显示技术有限公司 | Organic light emitting display panel and manufacturing method and display device thereof |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017185595A1 (en) * | 2016-04-28 | 2017-11-02 | 乐视控股（北京）有限公司 | Brightness enhancement film, display module and display device |
| CN105974652A (en) * | 2016-07-21 | 2016-09-28 | 京东方科技集团股份有限公司 | Display penal and preparation method thereof and display device |
| CN107608114A (en) * | 2017-09-29 | 2018-01-19 | 京东方科技集团股份有限公司 | Display base plate, display device and driving method |
| CN108776412A (en) * | 2018-08-10 | 2018-11-09 | Oppo广东移动通信有限公司 | Backlight module, liquid crystal display die set and electronic device |
| CN110091529A (en) * | 2019-04-17 | 2019-08-06 | 深圳市德仓科技有限公司 | Prismatic lens and preparation method thereof, equipment, backlight module, display screen and terminal |
| CN114488599A (en) * | 2022-01-25 | 2022-05-13 | Tcl华星光电技术有限公司 | Display module and mobile terminal |
| CN114488599B (en) * | 2022-01-25 | 2023-08-22 | Tcl华星光电技术有限公司 | Display module and mobile terminal |
| CN115857217A (en) * | 2022-12-16 | 2023-03-28 | 京东方科技集团股份有限公司 | Display module and display device |
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