CN209992778U - Liquid crystal display device - Google Patents
Liquid crystal display device Download PDFInfo
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- CN209992778U CN209992778U CN201920694834.5U CN201920694834U CN209992778U CN 209992778 U CN209992778 U CN 209992778U CN 201920694834 U CN201920694834 U CN 201920694834U CN 209992778 U CN209992778 U CN 209992778U
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 64
- 239000000758 substrate Substances 0.000 claims abstract description 34
- 238000006243 chemical reaction Methods 0.000 claims description 12
- DMLAVOWQYNRWNQ-UHFFFAOYSA-N azobenzene Chemical class C1=CC=CC=C1N=NC1=CC=CC=C1 DMLAVOWQYNRWNQ-UHFFFAOYSA-N 0.000 claims description 4
- 239000002096 quantum dot Substances 0.000 claims description 3
- 239000010410 layer Substances 0.000 abstract description 120
- 239000011521 glass Substances 0.000 abstract description 4
- 239000011248 coating agent Substances 0.000 abstract description 3
- 238000000576 coating method Methods 0.000 abstract description 3
- 239000011241 protective layer Substances 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000010408 film Substances 0.000 description 11
- 230000010287 polarization Effects 0.000 description 11
- 239000000463 material Substances 0.000 description 9
- 239000004372 Polyvinyl alcohol Substances 0.000 description 4
- 229920002451 polyvinyl alcohol Polymers 0.000 description 4
- DMLAVOWQYNRWNQ-BUHFOSPRSA-N (E)-azobenzene Chemical compound C1=CC=CC=C1\N=N\C1=CC=CC=C1 DMLAVOWQYNRWNQ-BUHFOSPRSA-N 0.000 description 3
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 3
- 230000005284 excitation Effects 0.000 description 3
- 229910052740 iodine Inorganic materials 0.000 description 3
- 239000011630 iodine Substances 0.000 description 3
- 229920002284 Cellulose triacetate Polymers 0.000 description 2
- NNLVGZFZQQXQNW-ADJNRHBOSA-N [(2r,3r,4s,5r,6s)-4,5-diacetyloxy-3-[(2s,3r,4s,5r,6r)-3,4,5-triacetyloxy-6-(acetyloxymethyl)oxan-2-yl]oxy-6-[(2r,3r,4s,5r,6s)-4,5,6-triacetyloxy-2-(acetyloxymethyl)oxan-3-yl]oxyoxan-2-yl]methyl acetate Chemical compound O([C@@H]1O[C@@H]([C@H]([C@H](OC(C)=O)[C@H]1OC(C)=O)O[C@H]1[C@@H]([C@@H](OC(C)=O)[C@H](OC(C)=O)[C@@H](COC(C)=O)O1)OC(C)=O)COC(=O)C)[C@@H]1[C@@H](COC(C)=O)O[C@@H](OC(C)=O)[C@H](OC(C)=O)[C@H]1OC(C)=O NNLVGZFZQQXQNW-ADJNRHBOSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
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- 238000000034 method Methods 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- DMLAVOWQYNRWNQ-YPKPFQOOSA-N (Z)-azobenzene Chemical compound C1=CC=CC=C1\N=N/C1=CC=CC=C1 DMLAVOWQYNRWNQ-YPKPFQOOSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- ZVQOOHYFBIDMTQ-UHFFFAOYSA-N [methyl(oxido){1-[6-(trifluoromethyl)pyridin-3-yl]ethyl}-lambda(6)-sulfanylidene]cyanamide Chemical compound N#CN=S(C)(=O)C(C)C1=CC=C(C(F)(F)F)N=C1 ZVQOOHYFBIDMTQ-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000031700 light absorption Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 229920002120 photoresistant polymer Polymers 0.000 description 1
- 229920001690 polydopamine Polymers 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000004528 spin coating Methods 0.000 description 1
- ILJSQTXMGCGYMG-UHFFFAOYSA-N triacetic acid Chemical compound CC(=O)CC(=O)CC(O)=O ILJSQTXMGCGYMG-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model provides a liquid crystal display device, this liquid crystal display device includes: first base plate, second base plate and set up the liquid crystal layer between first base plate and second base plate, first base plate with the second base plate is close to one side of liquid crystal layer is provided with first alignment layer and second alignment layer respectively, first alignment layer with first base plate is provided with first polarisation layer, the second alignment layer with be provided with second polarisation layer between the second base plate, set up between glass substrate and alignment layer through the polarisation layer with display device, make the polarisation layer can set up through the mode of coating, need not additionally to make the protective layer again, avoided the production of panel warpage problem, thinned liquid crystal display device's thickness, promoted display performance.
Description
Technical Field
The utility model belongs to the technical field of show, especially, relate to a display device.
Background
Thin Film Transistor Liquid Crystal displays (TFT-LCDs) have the characteristics of small size, low power consumption, no radiation, and the like, have been rapidly developed in recent years, and have a leading position in the current flat panel Display market. At present, TFT-LCDs are widely used in various products with large, medium and small sizes, and almost cover the major electronic products of the current information society, such as liquid crystal televisions, high definition digital televisions, computers (desktop and notebook), mobile phones, PDAs, GPS, vehicle displays, projection displays, video cameras, digital cameras, electronic watches, calculators, electronic instruments, meters, public displays, and illusion displays.
A polarizer (polarizer) is a key component of a liquid crystal panel, and is capable of polarizing light transmitted therethrough to provide linearly polarized light to a liquid crystal display device. Fig. 1 is a simple structure of an iodine-dyed polarizer in the prior art, as shown in fig. 1, a conventional iodine-dyed polarizer is composed of a polyvinyl alcohol (PVA) -doped iodine film 01 and a cellulose Triacetate (TAC) film 02 generated by mechanical stretching, and is attached to outer surfaces of two glass substrates on a light incident side and a light emergent side of a liquid crystal display panel, the overall thickness of the polarizer is thick due to the multiple film structures and the inherent physicochemical properties of the polarizer, and the polarization characteristics are easy to lose effectiveness in a high-temperature and high-humidity environment.
In view of the above, the applicant of the present invention has made extensive and intensive studies and researches on various defects and inconveniences caused by the liquid crystal display device in the prior art.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a liquid crystal display device that thickness is thin, environmental suitability is strong, stability is high and optical characteristic is good to solve not enough scheduling problem among the prior art.
In order to solve the technical problem, the utility model discloses a solution is: disclosed is a liquid crystal display device including: first base plate, second base plate and set up the liquid crystal layer between first base plate and second base plate, first base plate with the second base plate is close to one side of liquid crystal layer is provided with first alignment layer and second alignment layer respectively, first alignment layer with be provided with first polarisation layer between the first base plate, the second alignment layer with be provided with second polarisation layer between the second base plate.
Furthermore, the first polarizer and the second polarizer are made of azobenzene derivatives.
Further, the liquid crystal display device further includes: and the light source is positioned on one side of the second substrate, which is far away from the liquid crystal layer, and the wavelength of emergent light of the light source is 400-550 nm.
Further, the light source includes a blue LED lamp.
Further, a light conversion layer is arranged between the first substrate and the first polarizing layer, and the light conversion layer can convert incident light into white light.
Further, a color layer is arranged between the light conversion layer and the first substrate.
Further, the light conversion layer is a white light quantum dot layer.
Further, the film thickness of the first polarizing layer and the second polarizing layer is not more than 500 nm.
Further, a pixel electrode layer is arranged between the second polarizing layer and the second substrate.
Further, an electrode layer is arranged between the first polarizing layer and the first alignment layer.
The utility model provides a liquid crystal display device, this liquid crystal display device includes: first base plate, second base plate and set up the liquid crystal layer between first base plate and second base plate, first base plate with the second base plate is close to one side of liquid crystal layer is provided with first alignment layer and second alignment layer respectively, first alignment layer with first base plate is provided with first polarisation layer, the second alignment layer with be provided with second polarisation layer between the second base plate, set up between glass substrate and alignment layer through the polarisation layer with display device, make the polarisation layer can set up through the mode of coating, need not additionally to make the protective layer again, avoided the production of panel warpage problem, thinned liquid crystal display device's thickness, promoted display performance.
Drawings
The above and other objects, features and advantages of the present invention will become more apparent from the following description of the embodiments of the present invention with reference to the accompanying drawings, in which:
FIG. 1 is a simplified structure of an iodine-dyed polarizer in the prior art;
fig. 2 is a schematic structural diagram of a liquid crystal display device according to an embodiment of the present invention.
Detailed Description
In order to further explain the technical solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention, and it is obvious that the described embodiment is only a part of the embodiment of the present invention, but not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Fig. 2 is a schematic structural diagram of a liquid crystal display device according to an embodiment of the present invention. As shown in fig. 2, the liquid crystal display device includes: a first substrate 10, a second substrate 20, and a liquid crystal layer 30 disposed between the first substrate 10 and the second substrate 20. In this embodiment, the first substrate 10 may be, for example, a color filter substrate, and the second substrate may be, for example, a thin film transistor array substrate.
In most liquid crystal display devices, the application of the liquid crystal in the liquid crystal layer 30 requires that the alignment of the liquid crystal on the substrate has a certain regularity. Therefore, the first alignment layer 15 and the second alignment layer 22 are further disposed on the first substrate 10 and the second substrate 20 on the sides close to the liquid crystal layer 30, respectively. The present invention is not limited to the alignment process and material of the first alignment layer 15 and the second alignment layer 22, for example, the first alignment layer 15 and the second alignment layer 22 may be a common alignment material or a photo-alignment material.
The embodiment of the utility model provides a liquid crystal display device, still including set up the first polarisation layer 14 between first base plate 10 and first alignment layer 15 and set up the second polarisation layer 21 between second base plate 20 and second alignment layer 22. In this embodiment, the first polarizing layer 14 and the second polarizing layer 21 are made of the same material and formed in the same manner. The material can be azobenzene derivative in photo-alignment material, the azobenzene derivative has excellent long-term stability, and two different forms, namely cis form and trans form, exist; trans-azobenzene is stable, but trans-azobenzene absorbs the energy of the excitation light and then converts to cis, cis-azobenzene is an unstable state and converts back to trans by releasing energy, wherein the absorption of light by trans-azobenzene is somewhat related to the molecular long axis and the angle of light polarization, specifically, the final polarization direction of the azo material is perpendicular to the incident direction of the polarized excitation light, the film formation can be performed by spin coating, for example, the first polarizing layer 14 and the second polarizing layer 21 are finally formed between the first substrate 10 and the first alignment layer 15 and between the second substrate 20 and the second alignment layer 22 by laser alignment, and the film thickness of the first polarizing layer 14 and the second polarizing layer 21 is not more than 500 nm. Because the first polarizing layer 14 and the second polarizing layer 21 do not adopt a stretching process with a polyvinyl alcohol doped iodine film, no contractility is generated, and meanwhile, the two polarizing layers are clamped between the alignment layer and the substrate, so that the problem of panel warping is avoided, in addition, the material stability of the first polarizing layer 14 and the second polarizing layer 21 is far superior to that of the polyvinyl alcohol doped iodine film, and meanwhile, the first polarizing layer 15 and the second polarizing layer 22 which are corresponding and excellent in stability cover and protect the polarizing layers, so that a protective film layer similar to cellulose triacetate is not required to be additionally arranged, and further, the polarizing layers only need to be provided with a single-layer film layer with a polarizing characteristic to meet the requirement, the thickness of the liquid crystal display device is greatly reduced, and the display effect is improved.
The liquid crystal display device belongs to the passive light emitting element, therefore, a backlight source is required as the light source to perform the auxiliary display, and with continued reference to fig. 2, in the liquid crystal display device provided in the embodiment of the present invention, the backlight source is disposed on one side of the second substrate 20 away from the liquid crystal layer 30, and the wavelength range of the emergent light of the backlight source 40 is 400-550nm, that is, the light source can be a blue light source, a violet light source, a green light source, a violet-blue light source or a blue-green light source, within this wavelength range, the polarization characteristics of the first polarization layer 14 and the second polarization layer 21 in the embodiment of the present invention are the best. Taking the liquid crystal display device in the normally black mode as an example, the polarization directions of the first polarizing layer 14 and the second polarizing layer 21 are perpendicular to each other, and in the initial state, the liquid crystal molecules are not deflected by the external electric field, and at this time, the transmittance of the polarized light filtered by the first polarizing layer 14 on the second polarizing layer 21 is not more than 0.3%; after an external electric field is applied to the liquid crystal molecules, the liquid crystal molecules are deflected, and then the transmittance of polarized light filtered by the first polarizing layer 14 on the second polarizing layer 21 is not less than 88%. In order to ensure good polarization characteristics of the polarization layer of the liquid crystal display device and ensure excellent contrast, the wavelength range can be further reduced to 426-524 nm, and the wavelength value of the blue light source is completely in the range, so that the blue LED light source can be directly used as the backlight light source.
Further, with continued reference to fig. 2, in order to ensure that the emergent light is converted into a white light source based on the blue light source, the embodiment of the present invention provides a liquid crystal display device further including a light conversion layer 13 disposed between the first polarizing layer 14 and the first substrate 10, for example, the light conversion layer may be a phosphor material layer. However, in order to obtain excellent color purity, high stability and good luminous efficiency, the light conversion layer 13 may also be a layer of white light quantum dots, for example, which can emit yellow light in a complementary color relationship under excitation of a blue light source so that white light is emitted as a whole.
Of course, to achieve the effect of color display, the liquid crystal display device further includes a color layer disposed between the light conversion layer 13 and the first substrate 10, and the color layer specifically includes a color photoresist 11 and a black matrix 12.
In the embodiment of the present invention, the second substrate is specifically a TFT array substrate, that is, the TFT that is also disposed between the second substrate 20 and the second alignment layer 22 and the sub-pixel structure corresponding to each color resistance in the color resistance layer specifically include film layer structures such as a pixel electrode layer (not shown in the figure), in this embodiment, the pixel electrode layer can be disposed between the second substrate 20 and the second polarization layer 21, and can also be disposed between the second polarization layer 21 and the second alignment layer 22. The first substrate 10 of the liquid crystal display device may further include, for example, a common electrode layer (not shown) disposed between the first polarizing layer 14 and the first alignment layer 15, and a spacer 16 disposed on the first alignment layer.
The utility model provides a liquid crystal display device, this liquid crystal display device includes: first base plate, second base plate and set up the liquid crystal layer between first base plate and second base plate, first base plate with the second base plate is close to one side of liquid crystal layer is provided with first alignment layer and second alignment layer respectively, first alignment layer with first base plate is provided with first polarisation layer, the second alignment layer with be provided with second polarisation layer between the second base plate, set up between glass substrate and alignment layer through the polarisation layer with display device, make the polarisation layer can set up through the mode of coating, need not additionally to make the protective layer again, the thickness that has attenuate liquid crystal display device has promoted display performance.
In the present specification, the terms of front, rear, upper, lower and the like are defined by the positions of the components in the drawings and the positions of the components relative to each other, and are only used for the sake of clarity and convenience in technical solution. It is to be understood that the use of the directional terms should not be taken to limit the scope of the claims.
The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the principle of the present invention should be included within the protection scope of the present invention.
Claims (10)
1. A liquid crystal display device comprising: first base plate, second base plate and set up the liquid crystal layer between first base plate and second base plate, its characterized in that, first base plate with the second base plate is close to one side of liquid crystal layer is provided with first alignment layer and second alignment layer respectively, first alignment layer with be provided with first polarisation layer between the first base plate, the second alignment layer with be provided with the second polarisation layer between the second base plate.
2. The liquid crystal display device of claim 1, wherein the first and second polarizing layers are made of azobenzene derivatives.
3. The liquid crystal display device according to claim 2, further comprising a light source located on a side of the second substrate away from the liquid crystal layer, wherein a wavelength of light emitted from the light source is 400 to 550 nm.
4. The liquid crystal display device according to claim 3, wherein the light source includes a blue LED lamp.
5. The liquid crystal display device according to claim 3, wherein a light conversion layer is further provided between the first substrate and the first polarizing layer, the light conversion layer being capable of converting incident light into white light.
6. The liquid crystal display device according to claim 5, wherein a color layer is further provided between the light conversion layer and the first substrate.
7. The liquid crystal display device according to claim 5, wherein the light conversion layer is a white light quantum dot layer.
8. The liquid crystal display device according to claim 1, wherein the first polarizing layer and the second polarizing layer each have a film thickness of not more than 500 nm.
9. The liquid crystal display device according to claim 1, wherein a pixel electrode layer is provided between the second polarizing layer and the second substrate.
10. The liquid crystal display device according to claim 5, wherein a common electrode layer is provided between the first polarizing layer and the first alignment layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920694834.5U CN209992778U (en) | 2019-05-15 | 2019-05-15 | Liquid crystal display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920694834.5U CN209992778U (en) | 2019-05-15 | 2019-05-15 | Liquid crystal display device |
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| Publication Number | Publication Date |
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| CN209992778U true CN209992778U (en) | 2020-01-24 |
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| CN201920694834.5U Active CN209992778U (en) | 2019-05-15 | 2019-05-15 | Liquid crystal display device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021208182A1 (en) * | 2020-04-13 | 2021-10-21 | 武汉华星光电技术有限公司 | Quantum dot display panel, and quantum dot display device and manufacturing method therefor |
-
2019
- 2019-05-15 CN CN201920694834.5U patent/CN209992778U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021208182A1 (en) * | 2020-04-13 | 2021-10-21 | 武汉华星光电技术有限公司 | Quantum dot display panel, and quantum dot display device and manufacturing method therefor |
| US11803079B2 (en) | 2020-04-13 | 2023-10-31 | Wuhan China Star Optoelectronics Technology Co., Ltd. | Quantum dot display panel, quantum dot display device, and preparation method thereof |
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Address after: 215301 No. 1, Longteng Road, Kunshan Development Zone, Suzhou, Jiangsu Patentee after: InfoVision Optoelectronics(Kunshan)Co.,Ltd. Address before: 215301 No. 1, Longteng Road, Kunshan Development Zone, Suzhou, Jiangsu Patentee before: Infovision Optoelectronics (Kunshan) Co.,Ltd. |
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