CN111679493A - Backlight module with blue light conversion reflection film and liquid crystal display panel - Google Patents
Backlight module with blue light conversion reflection film and liquid crystal display panel Download PDFInfo
- Publication number
- CN111679493A CN111679493A CN202010472955.2A CN202010472955A CN111679493A CN 111679493 A CN111679493 A CN 111679493A CN 202010472955 A CN202010472955 A CN 202010472955A CN 111679493 A CN111679493 A CN 111679493A
- Authority
- CN
- China
- Prior art keywords
- blue light
- backlight module
- derivatives
- light
- optical conversion
- 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.)
- Granted
Links
Images
Classifications
-
- 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
- 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
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/08—Mirrors
- G02B5/0808—Mirrors having a single reflecting layer
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Liquid Crystal (AREA)
- Planar Illumination Modules (AREA)
Abstract
The invention discloses a backlight module containing a blue light conversion reflecting film and a liquid crystal display panel, and relates to the technical field of liquid crystal display. The backlight module and the liquid crystal display panel in the invention have the blue light conversion reflecting film in the components, and can convert high-energy blue light in light emitted by the backlight source and exposed from the bottom surface of the light guide plate into red light, thereby fundamentally solving the problem that the backlight module containing the reflecting film has great hidden danger to the health of human eyes because the backlight module does not have any protection measure for the blue light generated in the light emitting process of an electronic screen or a light source and exposes human eyes in high-energy short-wave blue light.
Description
Technical Field
The invention relates to the technical field of liquid crystal display, in particular to a backlight module containing a blue light conversion reflection film and a liquid crystal display panel.
Background
The backlight module is one of the key components of the liquid crystal display panel, and has the function of supplying sufficient light source with uniform brightness and distribution, so that the backlight module can normally display images. The backlight module mainly comprises a light source, a light guide plate and an optical diaphragm, wherein the optical diaphragm mainly comprises a reflecting film, a diffusion film and a brightness enhancement film.
The reflection film is mainly used for improving the reflectivity of an optical surface, reflecting light leaking out of the light guide plate efficiently without loss, thereby reducing light loss, reducing power consumption and improving the light saturation of the liquid crystal display surface. Currently, a large number of reflective films are used in liquid crystal display devices and new illumination sources, such as televisions, computer monitors, notebook computers, mobile phones, digital cameras, MP4 players, GPS navigators, and various illumination sources for daily use and industrial use. When the display or the light source is used, the high-energy short-wave blue light emitted by the display or the light source is very harmful to eyes of people.
The short-wave blue light is light with the wavelength of 380-500nm in visible light, has relatively high energy, and can penetrate through crystalline lens to directly reach retina. Free radicals are generated in the retina under blue light irradiation, which leads to the death of retinal pigment epithelium, which in turn leads to the deficiency of nutrients in light-sensitive cells causing impaired vision, and these damages are irreversible. The backlight module containing the common reflective film does not have any protective measures for the blue light generated in the light emitting process of an electronic screen or a light source, exposes human eyes in the high-energy short-wave blue light, and forms great hidden danger for the health of the human eyes.
Although some protective devices for preventing blue light eyes and the like developed aiming at blue light in an electronic screen or a light source are available in the market at present, the problems that the color balance, color vision, color perception and the like of people during observation are influenced due to blocking or inhibition of the blue light can be caused, the blue light can not be blocked or inhibited in an all-around manner, and the damage of the blue light to human eyes is not fundamentally solved.
Disclosure of Invention
Based on the technical problems in the background art, the invention provides a backlight module and a liquid crystal display panel containing a blue light conversion reflection film, wherein the blue light conversion reflection film contained in the components can convert high-energy blue light in light emitted by a backlight source and exposed from the bottom surface of a light guide plate into red light, so that the problem that the backlight module containing the reflection film can damage human eyes by the blue light generated in the light emitting process of an electronic screen or a light source is fundamentally solved.
The invention provides a backlight module containing a blue light conversion reflection film, which comprises the blue light conversion reflection film, wherein the blue light conversion reflection film comprises a reflection film substrate and an optical conversion layer which is fixedly arranged on the surface of one side of the reflection film substrate and can convert blue light with the wavelength of 380-500nm into red light.
Preferably, the optical conversion layer is made of an optical conversion material and a transparent resin; preferably, the optical conversion material is a photoluminescent material. The optical conversion material is capable of absorbing light of a certain wavelength and then emitting light of a longer wavelength than the incident light.
Preferably, the optical conversion material is one or more of a rare earth fluorescent material, an organic small molecule luminescent material, an organic metal complex luminescent material, an organic polymer luminescent material and a quantum dot luminescent material.
Preferably, the rare earth fluorescent material is one or more of aluminate fluorescent powder, silicate fluorescent powder, phosphate fluorescent powder, tungstate fluorescent powder, molybdate fluorescent powder, antimonate fluorescent powder, nitride fluorescent powder and sulfide fluorescent powder;
the organic micromolecule luminescent material is one or more of oxadiazole and derivatives thereof, triazole and derivatives thereof, xanthene derivatives, coumarin derivatives, 1, 8-naphthalimide derivatives, pyrazoline derivatives, triphenylamine derivatives, porphyrin compounds, carbazole, pyrazine, pyran, thiazole derivatives and perylene derivatives;
the organic metal complex luminescent material is one or more of a metal complex of a quinoline derivative, a metal complex of a pyrazolone derivative, a metal complex of a triphenylphosphine oxide derivative, a Schiff base ligand and a complex formed by heterocyclic derivative molecules.
The organic polymer luminescent material is one or more of polyphenyl, polyphenylene ethylene, polyphenylacetylene, polyfluorene, polythiophene, polycarbazole, polytriphenylamine, polypyrrole, polyporphyrin or derivatives of the materials;
the quantum dot luminescent material is ZnO, CdS, PbS, CdSe, ZnSe, InP, InAs, CdSexTe1-xOr CuInS2。
Preferably, the transparent resin is a thermosetting resin or an ultraviolet-curable resin; preferably, the transparent resin is acrylic resin, polyester resin, polyurethane resin, epoxy resin, or silicone resin.
Preferably, the weight ratio of the optical conversion material to the transparent resin is 0.0001-0.2: 1.
preferably, the number of layers of the optical conversion layer is more than or equal to 1; in order to improve the conversion efficiency of blue light, the optical conversion layer fixed on the reflective film substrate can adopt a structure of laminating a single layer or a plurality of optical conversion layers, and the same optical conversion material or different optical conversion materials can be used in different blue light conversion layers; the conversion effect and the actual use effect are both considered, and the single-layer thickness of the optical conversion layer is preferably 0.1-50 μm.
Preferably, the thickness of the reflective film substrate layer is 1 to 200 μm.
In the present invention, light exposed from the bottom surface of the light guide plate is subjected to secondary blue light conversion on the reflective film. First, light passes through the optical conversion layer from the upper surface of the blue light conversion reflection film to perform first blue light conversion, then reaches the reflection layer substrate, and reflected light enters the optical conversion layer again to perform second blue light conversion.
The invention also provides a liquid crystal display panel containing the backlight module.
Has the advantages that: the invention provides a backlight module and a liquid crystal display panel, wherein the components of the backlight module and the liquid crystal display panel all contain blue light conversion reflection films, and the reflection films can absorb part of blue light with the wavelength of 380-500nm in a light source and emit red light with the wavelength of 500-700nm, namely, the blue light with the wavelength of 380-500nm is converted into the red light. The light guide plate in the backlight module can only convert 60-70% of side light sources to the display screen, and 20-30% of light is exposed from the bottom surface of the light guide plate and is reflected back to the light guide plate through the reflecting film; and because the blue light in the common white light LED light source is more than the red light and less, partial blue light is converted into red light and then converted onto the display screen, so that the red light can be increased, the color gamut is improved, the red quality is improved, the color development effect is improved, the visual effect of people is improved, and the basic function of the reflecting film is not influenced, thereby fundamentally solving the problem that the backlight module containing the reflecting film has great hidden danger to the eye health of people because the backlight module generates the blue light in the light emitting process of an electronic screen or a light source and has no protection measures, exposes the human eyes in high-energy short-wave blue light.
Drawings
Fig. 1 is a schematic structural view of a blue light conversion reflective film in examples 1 and 2 of the present invention; in the figure: 1. a reflective film substrate 2, an optical conversion layer.
Fig. 2 is a reflection spectrum of example 1 of the present invention, wherein a is the blue light conversion reflective film of example 1, and b is a white LED.
Fig. 3 is a reflection spectrum of example 2 of the present invention, wherein a is the blue light conversion reflective film of example 2, and b is a white LED.
Fig. 4 is a schematic structural view of a blue light conversion reflective film in embodiment 3 of the present invention; in the figure: 1. a reflective film substrate 2, a first optical conversion layer 3, a second optical conversion layer.
Fig. 5 is a reflection spectrum of example 3 of the present invention, wherein a is the blue light conversion reflective film of example 3, and b is a white LED.
Detailed Description
The technical solution of the present invention will be described in detail below with reference to specific examples.
Example 1
A blue light conversion reflection film, as shown in FIG. 1, comprises a reflection film substrate 1 with a thickness of 50 μm, and an optical conversion layer 2 with a thickness of 10 μm is fixed on the upper surface of the reflection film substrate 1 by coating.
Wherein, the optical conversion layer 2 is prepared from an optical conversion material and a transparent resin according to the following ratio of 2: 100 by weight ratio; the optical conversion material is a rare earth fluorescent material: eu (Eu)2+Doped fluorescent powder, transparent resin is epoxy resin, and Eu is prepared2+The doped fluorescent powder is dispersed in epoxy resin by using ultrasonic, and then is fixed on the surface of the reflecting film substrate by a coating method. Eu (Eu)2+The doped fluorescent powder can be excited by blue light with the wavelength of about 450nm to emit orange red light with the wavelength of about 600 nm. As shown in fig. 2, after the white LED light source is reflected by the blue conversion layer, the intensity of the blue light is reduced, and the intensity of the red light is increased.
The blue light conversion reflection film is used for the backlight module.
Example 2
A blue light conversion reflection film, as shown in FIG. 1, comprises a reflection film substrate 1 with a thickness of 50 μm, and an optical conversion layer 2 with a thickness of 2 μm is fixed on the upper surface of the reflection film substrate 1 by coating.
Wherein, the optical conversion layer 2 is prepared by mixing an optical conversion material and a transparent resin according to the ratio of 1.5: 100 by weight ratio; the optical conversion material is a rare earth fluorescent material: eu (Eu)2+The mixed material of doped fluorescent powder and xanthene derivative is transparent acrylic resin, and Eu is prepared through high speed shearing2+The mixture of the doped fluorescent powder and the xanthene derivative is dispersed in acrylic resin and then fixed on the surface of the reflective film substrate by a coating method. Eu (Eu)2+The doped fluorescent powder can be excited by blue light with the wavelength of about 450nm to emit orange red light with the wavelength of about 600 nm. As shown in fig. 3, after the white LED light source is reflected by the blue conversion layer, the intensity of the blue light is reduced, and the intensity of the red light is increased.
The blue light conversion reflection film is used for the backlight module.
Example 3
A blue light conversion reflection film, as shown in FIG. 4, comprises a reflection film substrate 1 with a thickness of 60 μm, a first optical conversion layer 2 with a thickness of 1 μm is fixed on the upper surface of the reflection film substrate 1 by coating, and a second optical conversion layer 3 with a thickness of 1 μm is fixed on the upper surface of the reflection film substrate.
Wherein, the optical conversion layer 2 is prepared from an optical conversion material and a transparent resin according to the following ratio of 5: 100 by weight ratio; the optical conversion material is rare earth fluorescent material YAG: ce3+The fluorescent powder is prepared by dispersing a rare earth fluorescent material YAG in epoxy resin by using ultrasonic, and then fixing the rare earth fluorescent material YAG on the surface of the reflecting film by a coating method. Fluorescent powder YAG Ce3+Can be excited by blue light with the wavelength of about 450nm to emit yellow-green light.
The optical conversion layer 3 was formed of an optical conversion material and a transparent resin in a ratio of 0.01: 100 by weight ratio; the optical conversion material is pyran-containing organic small-molecule fluorescent dye DCM: 4- (dicyanomethylene) -2-methyl-6- (4-dimethylaminostyryl) -4H-pyran, the transparent resin is polyester resin, and DCM is firstly dissolved in chloroform solvent, then mixed with the polyester resin and fixed on the upper surface of the reflecting film substrate by coating method. The DCM can absorb yellow-green light and emit orange-red light with a wavelength of about 600 nm. As shown in fig. 5, the white LED light source has reduced blue light intensity and improved red light intensity after passing through the two stacked blue light conversion layers.
The blue light conversion reflection film is used for the backlight module.
Example 4
A blue light conversion reflection film comprises a reflection film substrate with a thickness of 200 μm, and an optical conversion layer with a thickness of 50 μm is fixed on the upper surface of the reflection film substrate by coating.
Wherein, the optical conversion layer is prepared by mixing an optical conversion material and transparent resin according to the ratio of 1: 10 by weight ratio; the optical conversion material is metal complex of quinoline derivative, the transparent resin is acrylic resin, and the optical conversion material is prepared by dispersing the metal complex of quinoline derivative in the acrylic resin by a high-speed shearing method and then fixing the metal complex on the surface of the reflecting film substrate by a coating method.
The blue light conversion reflection film is used for the backlight module.
Example 5
A blue light conversion reflection film comprises a reflection film substrate with the thickness of 1 μm, and an optical conversion layer with the thickness of 0.1 μm is fixed on the upper surface of the reflection film substrate by coating.
Wherein, the optical conversion layer is prepared from an optical conversion material and a transparent resin according to the ratio of 2: 10 by weight ratio; the optical conversion material is a mixed material of quantum dot luminescent material ZnO and InAs, the transparent resin is organic silicon resin, and the preparation method is that the quantum dot luminescent material is dispersed in the organic silicon resin by adopting a high-speed shearing method and then is fixed on the surface of the reflecting film substrate by a coating method.
The blue light conversion reflection film is used for the backlight module.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (9)
1. The backlight module is characterized by comprising a blue light conversion reflection film, wherein the blue light conversion reflection film comprises a reflection film substrate and an optical conversion layer which is fixed on the surface of one side of the reflection film substrate and can convert blue light with the wavelength of 380-500nm into red light.
2. The backlight module with the blue light conversion reflective film as claimed in claim 1, wherein the optical conversion layer is made of an optical conversion material and a transparent resin; preferably, the optical conversion material is a photoluminescent material.
3. The backlight module with the blue light conversion reflective film as claimed in claim 2, wherein the optical conversion material is one or more of a rare earth fluorescent material, an organic small molecule luminescent material, an organic metal complex luminescent material, an organic polymer luminescent material, and a quantum dot luminescent material.
4. The backlight module of claim 3, wherein the rare earth phosphor is one or more of aluminate phosphor, silicate phosphor, phosphate phosphor, tungstate phosphor, molybdate phosphor, antimonate phosphor, nitride phosphor, and sulfide phosphor;
the organic micromolecule luminescent material is one or more of oxadiazole and derivatives thereof, triazole and derivatives thereof, xanthene derivatives, coumarin derivatives, 1, 8-naphthalimide derivatives, pyrazoline derivatives, triphenylamine derivatives, porphyrin compounds, carbazole, pyrazine, pyran, thiazole derivatives and perylene derivatives;
the organic metal complex luminescent material is one or more of a metal complex of a quinoline derivative, a metal complex of a pyrazolone derivative, a metal complex of a triphenylphosphine oxide derivative, a Schiff base ligand and a complex formed by heterocyclic derivative molecules.
The organic polymer luminescent material is one or more of polyphenyl, polyphenylene ethylene, polyphenylacetylene, polyfluorene, polythiophene, polycarbazole, polytriphenylamine, polypyrrole, polyporphyrin or derivatives of the materials;
the quantum dot luminescent material is ZnO, CdS, PbS, CdSe, ZnSe, InP, InAs, CdSexTe1-xOr CuInS2。
5. The backlight module containing the blue-light converting reflective film according to any one of claims 2 to 4, wherein the transparent resin is a thermosetting resin or an ultraviolet-curable resin; preferably, the transparent resin is one or more of acrylic resin, polyester resin, polyurethane resin, epoxy resin and silicone resin.
6. The backlight module containing the blue-light converting reflective film according to any one of claims 2 to 5, wherein the weight ratio of the optical conversion material to the transparent resin is 0.0001 to 0.2: 1.
7. the backlight module with the blue light conversion and reflection film as claimed in any one of claims 1 to 6, wherein the number of optical conversion layers is greater than or equal to 1; preferably, the thickness of the optical conversion layer single layer is 0.1-50 μm.
8. The backlight module comprising the blue-light converting reflective film according to any one of claims 1 to 6, wherein the thickness of the reflective film substrate layer is 1 to 200 μm.
9. A liquid crystal display panel comprising the backlight module of any one of claims 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010472955.2A CN111679493B (en) | 2020-05-29 | 2020-05-29 | Backlight module with blue light conversion reflecting film and liquid crystal display panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010472955.2A CN111679493B (en) | 2020-05-29 | 2020-05-29 | Backlight module with blue light conversion reflecting film and liquid crystal display panel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111679493A true CN111679493A (en) | 2020-09-18 |
| CN111679493B CN111679493B (en) | 2022-10-21 |
Family
ID=72434347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010472955.2A Active CN111679493B (en) | 2020-05-29 | 2020-05-29 | Backlight module with blue light conversion reflecting film and liquid crystal display panel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111679493B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112300427A (en) * | 2020-10-10 | 2021-02-02 | 北京科技大学 | Preparation method of blue light absorbing and red light emitting film for backlight module |
| TWI758871B (en) * | 2020-09-18 | 2022-03-21 | 李宛儒 | A backlight module |
| CN116935750A (en) * | 2023-08-08 | 2023-10-24 | 太湖金张科技股份有限公司 | Peep-proof display cover plate |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202171710U (en) * | 2011-09-06 | 2012-03-21 | 广东欧珀移动通信有限公司 | Structure for reducing LCD backlight radiation |
| CN103155024A (en) * | 2010-10-05 | 2013-06-12 | 英特曼帝克司公司 | Solid-state light emitting devices and signage with photoluminescence wavelength conversion |
| CN104576941A (en) * | 2013-10-16 | 2015-04-29 | 海洋王照明科技股份有限公司 | White-light OLED (organic light emission diode) device and preparation method thereof |
| CN105086570A (en) * | 2014-05-20 | 2015-11-25 | 太湖金张科技股份有限公司 | Blue light-blocking hardened resin, blue light-blocking hardened resin film and manufacturing method thereof |
| US20150378217A1 (en) * | 2014-06-25 | 2015-12-31 | Samsung Display Co., Ltd. | Fluorescent sheet and light unit and liquid crystal display including the same |
| CN205157934U (en) * | 2015-11-30 | 2016-04-13 | 信利半导体有限公司 | Display module assembly and LCD |
| CN105789474A (en) * | 2014-12-24 | 2016-07-20 | 固安翌光科技有限公司 | Lighting source |
| CN106405706A (en) * | 2016-06-06 | 2017-02-15 | 安徽省光学膜材料工程研究院有限公司 | Blue light conversion diffusion barrier |
| CN207164413U (en) * | 2017-08-23 | 2018-03-30 | 深圳创维－Rgb电子有限公司 | A kind of backlight module, display screen and display device |
| CN208000439U (en) * | 2018-03-29 | 2018-10-23 | 瑞仪光电(苏州)有限公司 | Backlight module and display device |
| CN209215806U (en) * | 2018-12-11 | 2019-08-06 | 深圳Tcl新技术有限公司 | A kind of backlight module |
-
2020
- 2020-05-29 CN CN202010472955.2A patent/CN111679493B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103155024A (en) * | 2010-10-05 | 2013-06-12 | 英特曼帝克司公司 | Solid-state light emitting devices and signage with photoluminescence wavelength conversion |
| CN202171710U (en) * | 2011-09-06 | 2012-03-21 | 广东欧珀移动通信有限公司 | Structure for reducing LCD backlight radiation |
| CN104576941A (en) * | 2013-10-16 | 2015-04-29 | 海洋王照明科技股份有限公司 | White-light OLED (organic light emission diode) device and preparation method thereof |
| CN105086570A (en) * | 2014-05-20 | 2015-11-25 | 太湖金张科技股份有限公司 | Blue light-blocking hardened resin, blue light-blocking hardened resin film and manufacturing method thereof |
| US20150378217A1 (en) * | 2014-06-25 | 2015-12-31 | Samsung Display Co., Ltd. | Fluorescent sheet and light unit and liquid crystal display including the same |
| CN105789474A (en) * | 2014-12-24 | 2016-07-20 | 固安翌光科技有限公司 | Lighting source |
| CN205157934U (en) * | 2015-11-30 | 2016-04-13 | 信利半导体有限公司 | Display module assembly and LCD |
| CN106405706A (en) * | 2016-06-06 | 2017-02-15 | 安徽省光学膜材料工程研究院有限公司 | Blue light conversion diffusion barrier |
| CN207164413U (en) * | 2017-08-23 | 2018-03-30 | 深圳创维－Rgb电子有限公司 | A kind of backlight module, display screen and display device |
| CN208000439U (en) * | 2018-03-29 | 2018-10-23 | 瑞仪光电(苏州)有限公司 | Backlight module and display device |
| CN209215806U (en) * | 2018-12-11 | 2019-08-06 | 深圳Tcl新技术有限公司 | A kind of backlight module |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI758871B (en) * | 2020-09-18 | 2022-03-21 | 李宛儒 | A backlight module |
| CN112300427A (en) * | 2020-10-10 | 2021-02-02 | 北京科技大学 | Preparation method of blue light absorbing and red light emitting film for backlight module |
| CN116935750A (en) * | 2023-08-08 | 2023-10-24 | 太湖金张科技股份有限公司 | Peep-proof display cover plate |
| CN116935750B (en) * | 2023-08-08 | 2024-05-10 | 太湖金张科技股份有限公司 | Peep-proof display cover plate |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111679493B (en) | 2022-10-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111679493B (en) | Backlight module with blue light conversion reflecting film and liquid crystal display panel | |
| US9182631B2 (en) | Phosphor substrate, display device, and electronic apparatus | |
| US9599857B2 (en) | LED display with wavelength conversion layer | |
| CN1230708C (en) | Substrate for electro-optics apparatus, electro-optics apparatus and electronic apparatus | |
| TWI701318B (en) | Color liquid crystal displays and display backlights | |
| WO2013039072A1 (en) | Light-emitting device, display apparatus, illumination apparatus, and electricity-generating apparatus | |
| WO2013183751A1 (en) | Fluorescent substrate, light-emitting device, display device, and lighting device | |
| CN106405706A (en) | Blue light conversion diffusion barrier | |
| US20150323711A1 (en) | Scatterer substrate | |
| JP2014052606A (en) | Phosphor substrate, light-emitting device, display device and luminaire | |
| US20190004375A1 (en) | Optical film, backlight module and display device for backlight module | |
| JPWO2013154133A1 (en) | Light scatterer, light scatterer film, light scatterer substrate, light scatterer device, light emitting device, display device, and illumination device | |
| CN107102514A (en) | Quantum dot light photoresist, quantum dot color membrane substrates and display device | |
| CN206946014U (en) | A kind of optical film assembly, backlight module and display device | |
| CN207799291U (en) | A kind of high colour gamut illuminating module | |
| TW201510622A (en) | Liquid crystal panel and liquid crystal display | |
| US20180299609A1 (en) | Method for manufacturing backlight module | |
| CN111679492A (en) | Backlight module containing blue light blocking reflection film and liquid crystal display panel | |
| KR101481673B1 (en) | Oragnic Luminescent Display Device | |
| CN101852342A (en) | LED light source and backlight module | |
| CN113156703A (en) | Backlight module and quantum dot display device | |
| US20130250209A1 (en) | High Color Expression Display Device and Method for Adjusting Displayed Color | |
| CN103325809B (en) | Organic light-emitting display device | |
| Kim et al. | Optimal design of a quantum dot color conversion film in LCD backlighting | |
| CN109061788A (en) | A kind of liquid crystal display device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |