CN106773322B - Backlight module and double-sided liquid crystal display - Google Patents
Backlight module and double-sided liquid crystal display Download PDFInfo
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- CN106773322B CN106773322B CN201710095910.6A CN201710095910A CN106773322B CN 106773322 B CN106773322 B CN 106773322B CN 201710095910 A CN201710095910 A CN 201710095910A CN 106773322 B CN106773322 B CN 106773322B
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 31
- 239000002096 quantum dot Substances 0.000 claims abstract description 86
- 239000012788 optical film Substances 0.000 claims abstract description 40
- 239000003292 glue Substances 0.000 claims abstract description 20
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 7
- 239000001301 oxygen Substances 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000010410 layer Substances 0.000 claims description 30
- 239000011368 organic material Substances 0.000 claims description 6
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 5
- 239000012790 adhesive layer Substances 0.000 claims description 5
- 230000000903 blocking effect Effects 0.000 claims description 5
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 238000002310 reflectometry Methods 0.000 claims description 3
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 3
- 229910052709 silver Inorganic materials 0.000 claims description 3
- 239000004332 silver Substances 0.000 claims description 3
- 239000010408 film Substances 0.000 abstract description 34
- 230000009467 reduction Effects 0.000 abstract description 3
- 235000009537 plain noodles Nutrition 0.000 abstract description 2
- 238000010791 quenching Methods 0.000 abstract description 2
- 230000000171 quenching effect Effects 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 229910004205 SiNX Inorganic materials 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 229910004613 CdTe Inorganic materials 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- UHYPYGJEEGLRJD-UHFFFAOYSA-N cadmium(2+);selenium(2-) Chemical compound [Se-2].[Cd+2] UHYPYGJEEGLRJD-UHFFFAOYSA-N 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- SBIBMFFZSBJNJF-UHFFFAOYSA-N selenium;zinc Chemical compound [Se]=[Zn] SBIBMFFZSBJNJF-UHFFFAOYSA-N 0.000 description 1
- 230000005476 size effect Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
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
- G02F1/133615—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
- G02F1/133614—Illuminating devices using photoluminescence, e.g. phosphors illuminated by UV or blue light
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Planar Illumination Modules (AREA)
- Liquid Crystal (AREA)
Abstract
The invention provides a backlight module and a double-sided liquid crystal display. Wherein backlight unit includes: light source, low refracting index glue film, block water and hinder oxygen layer, first blooming, second blooming and have first surface, second surface and go into the plain noodles light guide plate, be provided with the quantum dot film on the first surface of light guide plate, be provided with the quantum dot site that is the array and arranges on the quantum dot film, along the direction of keeping away from the light guide plate, set gradually low refracting index glue film, block water and hinder oxygen layer and first blooming on the first surface of light guide plate. The second optical film is covered on the second surface. The light source is arranged near the light incident surface. According to the structure, the quantum dot film is arranged on the first surface of the light guide plate, the truest image color reduction can be realized, and the light source is arranged on the light incident surface of the light guide plate, and the quantum dot film is far away from the light source, so that the temperature quenching of the quantum dot film is avoided, and the quantum dot film arranged in such a way has high luminous efficiency.
Description
Technical Field
The invention relates to the technical field of display screens, in particular to a backlight module and a double-sided liquid crystal display.
Background
At present, the color gamut level of TFT liquid crystal display devices is generally about 72%, and Quantum Dot (Quantum Dot) backlight module technology is developed to further improve the color gamut level. Quantum dot luminescent materials obey quantum size effects, the properties of which vary with the size of the quantum dots. When stimulated by light or electricity, the quantum dots emit colored light, the color of the light is related to the properties of the light, and therefore the light emitted by the quantum dots can be controlled by changing the size of the light. The quantum dot luminescent material has the advantages of concentrated luminescent spectrum, high color purity and the like. The quantum dot light-emitting material is used in the technical field of display, so that the color gamut of the traditional display can be greatly improved, and the color reduction capability of the display is enhanced. The quantum dot backlight module utilizes the characteristic of the quantum dot, utilizes the irradiation of the LED backlight to irradiate the quantum dot layer to excite the color light with different colors, and obtains white light by mixing with the color light partially penetrating through the quantum dot, thereby improving the light emitting effect of the whole backlight module.
With the demand of double-sided display screens becoming more and more extensive, how to apply the quantum dot technology to double-sided display becomes a problem which needs to be solved urgently at present.
Disclosure of Invention
The invention provides a backlight module and a double-sided liquid crystal display, which are used for solving the technical problem that the quantum dot technology is not applied to double-sided display in the prior art.
One aspect of the present invention provides a backlight module, including: the light guide plate comprises a light source, a low-refractive-index adhesive layer, a water and oxygen blocking layer, a first optical film, a second optical film and a light guide plate, wherein the light guide plate is provided with a first surface, a second surface and a light incident surface; the second optical film is covered on the second surface; the light source is arranged near the light incident surface.
Further, the reflectivity of the first optical film is greater than the reflectivity of the second optical film.
Furthermore, the water and oxygen blocking layer is composed of aluminum, silver, silicon oxide or silicon nitride and organic materials.
Further, the refractive index of the low-refractive-index glue layer is less than 1.42.
Further, the thickness of the low refractive index glue layer is between 3um and 20 um.
The optical film assembly further comprises a third optical film and a fourth optical film, wherein the third optical film is covered on the first optical film, and the fourth optical film is covered on the second optical film.
Further, the light source emits blue light, and the quantum dot dots comprise red quantum dots and green quantum dots.
Further, the light source emits red light, and the quantum dot dots comprise green quantum dots and blue quantum dots.
Further, the light source emits green light, and the quantum dot dots comprise red quantum dots and blue quantum dots.
The invention provides a double-sided liquid crystal display, which comprises a first liquid crystal screen, a second liquid crystal screen and the backlight module, wherein the backlight module is positioned between the first liquid crystal screen and the second liquid crystal screen so as to provide backlight for the first liquid crystal screen and the second liquid crystal screen.
According to the backlight module and the double-sided liquid crystal display, the quantum dot film is coated on the first surface of the light guide plate, blue light is changed into white light through the quantum dot film, and meanwhile, the low-refractive-index glue layer is additionally arranged between the water-blocking and oxygen-blocking layer and the light guide plate, so that the blue light (or red light or green light) emitted by the light source is totally reflected in the light guide plate, and the utilization rate of the light is improved. Above-mentioned structure is through setting up the quantum dot film at light guide plate first surface, can realize the most real image color reduction to set up the quantum dot film between low refracting index glue film and light guide plate, have fine reliance, and because the light source setting is at the income plain noodles of light guide plate, the light source is kept away from to the quantum dot film, so avoided the temperature quenching of quantum dot film, the quantum dot film that sets up like this has very high luminous efficacy.
Drawings
The invention will be described in more detail hereinafter on the basis of embodiments and with reference to the accompanying drawings. Wherein:
fig. 1 is a schematic structural diagram of a backlight module according to an embodiment of the invention;
fig. 2 is a schematic structural diagram of a double-sided liquid crystal display according to an embodiment of the invention.
In the drawings, like parts are provided with like reference numerals. The figures are not drawn to scale.
Detailed Description
The invention will be further explained with reference to the drawings.
Fig. 1 is a schematic structural diagram of a backlight module according to an embodiment of the invention. As shown in fig. 1, the present embodiment provides a backlight module, including: the light source comprises a light source 1, a low-refractive-index adhesive layer 2, a water and oxygen blocking layer 3, a first optical film 4, a second optical film 5 and a light guide plate 6 with a first surface 61, a second surface 62 and a light incident surface 63.
The first surface 61 of the light guide plate 6 is provided with a quantum dot film, and the quantum dot film is provided with quantum dot dots 64 arranged in an array. The first surface 61 side of the light guide plate 6 is provided with a low refractive index adhesive layer 2, a water and oxygen blocking layer 3, and a first optical film 4 in this order in a direction away from the light guide plate 6. The second optical film 5 is covered on the second surface 62. The light source 1 is disposed near the light incident surface 63.
Specifically, the light source 1 emitting blue light will be described as an example. When the light source 1 emits blue light, the quantum dot dots 64 include red quantum dots and green quantum dots, the red quantum dots emit red light when excited by the light source 1, and the green quantum dots emit green light when excited by the light source 1. The red light, the green light and the blue light entering the light guide plate 6 are combined to form white light, and thus, when the light source 1 emits blue light, the blue light is changed into white light by the red quantum dots and the green quantum dots. Furthermore, since the quantum dot dots 64 are disposed on the first surface 61 of the light guide plate 6, which may destroy the total reflection of the blue light in the light guide plate 6, some of the blue light may be emitted from the first surface 61 to reach the low refractive index glue layer 2. Preferably, the refractive index of the low refractive index glue layer 2 is less than 1.42 and the thickness of the low refractive index glue layer 2 is between 3um and 20 um. The low-refractive-index glue layer 2 can enable blue light reaching the low-refractive-index glue layer 2 to be totally reflected, the blue light entering the low-refractive-index glue layer 2 is reflected back to the quantum dot film, and then quantum dot mesh points 64 in the quantum dot film are re-excited to emit monochromatic light, so that the utilization rate of the light is improved.
The quantum dot dots 64 are quantum dot materials that can excite color light different from the monochromatic light emitted from the light source 1. The light source 1 emits blue light, the blue light enters the light guide plate 6 from the light incident surface 63, the blue light is incident on the quantum dot mesh points 64, the quantum dot mesh points 64 are excited to emit red light and green light, and part of the blue light can penetrate through the quantum dot film and enter the low-refractive-index adhesive layer 2. Under the effect of low refracting index glue film 2, make the blue light that gets into low refracting index glue film 2 take place the reflection, through the refracting index of adjustment low refracting index glue film 2, can make the blue light that gets into low refracting index glue film 2 take place the total reflection, improves the utilization ratio of light as far as. The low refractive index glue layer 2 reflects the incident blue light back to the quantum dot film, the quantum dot mesh points 64 in the quantum dot film are excited again to emit red light and green light, and the red light and the green light excited by the quantum dot mesh points 64 are mixed with the blue light entering the light guide plate 6 to form white light, so that backlight is provided for the double-sided liquid crystal display. Because low refracting index glue film 2 reflects the blue light that gets into wherein, and the blue light of reflection reenters the quantum dot film, and then excites quantum dot site 64 again and sends ruddiness and green glow, compares with prior art, and greatly increased quantum dot site 64 excites efficiency, has improved backlight unit's luminance and colour gamut, has further promoted product quality.
Further, the quantum dot dots 64 are one or more of CdSe, CdS, CdTe, ZnS, ZnSe, CuInS, and ZnCuInS.
Further, the light source 1 is a red LED, which emits red light outwards, and the quantum dot film 64 includes green quantum dots and blue quantum dots. The green quantum dots and the blue quantum dots respectively emit green light and blue light under the excitation of the light source 1, and the green light, the blue light and the red light entering the light guide plate 6 are combined to form white light, so that when the light source 1 emits red light, the red light emitted by the light source 1 into the light guide plate 6 is changed into white light under the action of the green quantum dots and the red quantum dots. Similarly, when the light source 1 is a green LED and emits green light outwards, the quantum dot film 64 includes red quantum dots and blue quantum dots, and when the light source 1 emits green light, the green light emitted from the light source 1 into the light guide plate 6 is finally changed into white light under the action of the red quantum dots and the blue quantum dots. The light source 1 is located in the middle of the light incident surface 63, and the emitted light vertically enters the light incident surface 63. Further, the first optical film 4 has a higher reflectance than the second optical film 5. This makes it possible to make the luminance and chromaticity of the display screens disposed on both sides (the first surface 61 side and the second surface 62 side) of the light guide plate 6 as close as possible, and prevent the luminance of the light output from the second surface 62 side from being higher than the luminance of the light output from the first surface 61 side.
Further, the water-blocking and oxygen-blocking layer 3 is a water-blocking and oxygen-blocking film composed of an Al layer, an Ag layer, SiOx or SiNX and an organic material. The water-blocking oxygen-blocking layer 3 can be an Al layer or an Ag layer, and the water-blocking oxygen-blocking layer 3 can also be a multilayer water-blocking oxygen-blocking layer composed of SiOX or SiNX and an organic material. Namely, the water-blocking and oxygen-blocking layer is composed of aluminum, silver, silicon oxide or silicon nitride and organic materials. The water-blocking and oxygen-blocking film composed of SiOx and organic materials has excellent barrier property and good light transmission property, and the quantum dot film 64 has good reliability due to the arrangement of the water-blocking and oxygen-blocking layer 3.
Further, a third optical film 7 and a fourth optical film 8 are included. Wherein the third optical film 7 is covered on the first optical film 4, and the fourth optical film 8 is covered on the second optical film 5. The third optical film 7 and the fourth optical film 8 may be used to achieve a high brightness effect. The third optical film 7 and the fourth optical film 8 may be made of the same material or different materials.
Fig. 2 is a schematic structural diagram of a double-sided liquid crystal display according to an embodiment of the invention. As shown in fig. 2, an embodiment of the present invention further provides a dual-sided liquid crystal display, which includes a first liquid crystal panel a, a second liquid crystal panel B, and the backlight module C in the foregoing embodiment, wherein the backlight module C is located between the first liquid crystal panel a and the second liquid crystal panel B, and the backlight module C provides backlight for the first liquid crystal panel a and the second liquid crystal panel B.
While the invention has been described with reference to a preferred embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict. It is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (9)
1. A backlight module, comprising: the light guide plate comprises a light source, a low-refractive-index adhesive layer, a water and oxygen blocking layer, a first optical film, a second optical film and a light guide plate, wherein the light guide plate is provided with a first surface, a second surface and a light incident surface; the second optical film is covered on the second surface; the light source is arranged near the light incident surface, and the refractive index of the low-refractive-index glue layer is smaller than 1.42.
2. The backlight module as claimed in claim 1, wherein the first optical film has a reflectivity greater than that of the second optical film.
3. The backlight module as claimed in claim 1, wherein the water-blocking and oxygen-blocking layer is made of aluminum, silver, silicon oxide or silicon nitride and an organic material.
4. A backlight module according to claim 1, wherein the low refractive index glue layer has a thickness of between 3um and 20 um.
5. The backlight module according to claim 1, further comprising a third optical film and a fourth optical film, wherein the third optical film is covered on the first optical film and the fourth optical film is covered on the second optical film.
6. The backlight module defined in any one of claims 1-5 wherein the light source emits blue light and the quantum dot dots comprise red quantum dots and green quantum dots.
7. The backlight module according to any of claims 1-5, wherein the light source emits red light, and the quantum dot dots comprise green quantum dots and blue quantum dots.
8. The backlight module according to any of claims 1-5, wherein the light source emits green light, and the quantum dot dots comprise red quantum dots and blue quantum dots.
9. A dual-sided liquid crystal display comprising a first liquid crystal panel, a second liquid crystal panel and the backlight module of any one of claims 1 to 8, wherein the backlight module is located between the first liquid crystal panel and the second liquid crystal panel to provide backlight to the first liquid crystal panel and the second liquid crystal panel.
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| CN201710095910.6A CN106773322B (en) | 2017-02-22 | 2017-02-22 | Backlight module and double-sided liquid crystal display |
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| CN201710095910.6A CN106773322B (en) | 2017-02-22 | 2017-02-22 | Backlight module and double-sided liquid crystal display |
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| CN106773322B true CN106773322B (en) | 2020-09-08 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108398829B (en) * | 2018-02-27 | 2021-03-02 | 惠州市华星光电技术有限公司 | Backlight module based on quantum dots and manufacturing method thereof |
| CN108983491A (en) * | 2018-07-20 | 2018-12-11 | 深圳市华星光电技术有限公司 | Liquid crystal display device and its quantum-dot structure |
| CN109739051A (en) * | 2019-02-21 | 2019-05-10 | 深圳市华星光电技术有限公司 | Quantum dot liquid crystal display |
| CN110738940B (en) * | 2019-11-28 | 2022-02-01 | 京东方科技集团股份有限公司 | Quantum dot film, color film layer and display device |
| CN111724698A (en) * | 2020-06-04 | 2020-09-29 | 深圳市隆利科技股份有限公司 | Double-sided display electronic equipment |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105700236A (en) * | 2016-04-13 | 2016-06-22 | 深圳市华星光电技术有限公司 | Double-face liquid crystal display device and backlight module thereof |
| CN105700242A (en) * | 2016-04-29 | 2016-06-22 | 深圳市华星光电技术有限公司 | Backlight module and double-side liquid crystal display device |
| CN105717704A (en) * | 2016-04-22 | 2016-06-29 | 深圳市华星光电技术有限公司 | Two-sided display screen and LED light bar thereof |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105700236A (en) * | 2016-04-13 | 2016-06-22 | 深圳市华星光电技术有限公司 | Double-face liquid crystal display device and backlight module thereof |
| CN105717704A (en) * | 2016-04-22 | 2016-06-29 | 深圳市华星光电技术有限公司 | Two-sided display screen and LED light bar thereof |
| CN105700242A (en) * | 2016-04-29 | 2016-06-22 | 深圳市华星光电技术有限公司 | Backlight module and double-side liquid crystal display device |
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Address after: 9-2 Tangming Avenue, Guangming New District, Shenzhen City, Guangdong Province Patentee after: TCL China Star Optoelectronics Technology Co.,Ltd. Address before: 9-2 Tangming Avenue, Guangming New District, Shenzhen City, Guangdong Province Patentee before: Shenzhen China Star Optoelectronics Technology Co.,Ltd. |