CN110441954B - Display panel and display device - Google Patents
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- CN110441954B CN110441954B CN201910707609.5A CN201910707609A CN110441954B CN 110441954 B CN110441954 B CN 110441954B CN 201910707609 A CN201910707609 A CN 201910707609A CN 110441954 B CN110441954 B CN 110441954B
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- 239000010410 layer Substances 0.000 claims description 110
- 239000011358 absorbing material Substances 0.000 claims description 16
- 229920001167 Poly(triaryl amine) Polymers 0.000 claims description 9
- 150000002391 heterocyclic compounds Chemical class 0.000 claims description 8
- 239000004820 Pressure-sensitive adhesive Substances 0.000 claims description 7
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- 150000001335 aliphatic alkanes Chemical class 0.000 claims description 6
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- CZPWVGJYEJSRLH-UHFFFAOYSA-N Pyrimidine Chemical compound C1=CN=CN=C1 CZPWVGJYEJSRLH-UHFFFAOYSA-N 0.000 description 1
- FZWLAAWBMGSTSO-UHFFFAOYSA-N Thiazole Chemical compound C1=CSC=N1 FZWLAAWBMGSTSO-UHFFFAOYSA-N 0.000 description 1
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- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
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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
- G02F1/133509—Filters, e.g. light shielding masks
- G02F1/133512—Light shielding layers, e.g. black matrix
-
- 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
- G02F1/133509—Filters, e.g. light shielding masks
- G02F1/133514—Colour filters
-
- 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
- G02F1/133528—Polarisers
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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)
- Polarising Elements (AREA)
- Liquid Crystal (AREA)
Abstract
The display panel comprises a filter layer, a light absorption film layer and a polarizing film layer, wherein at least one of the filter layer, the light absorption film layer and the polarizing film layer comprises the light absorption material provided by the embodiment of the disclosure. The film layer formed by the light absorption material absorbs light with a certain wave band wavelength, so that the problem of light leakage of the iodine polarizer in the liquid crystal display under the dark state is solved.
Description
Technical Field
The present disclosure relates to the field of display technologies, and in particular, to a display panel and a display device.
Background
With the rapid development of liquid crystal display technology, people have higher and higher performance requirements on display panels.
Thin film transistor liquid crystal displays (TFT-LCDs) are widely used in the display field. When current passes through the transistor in the LCD, the electric field will change to cause the liquid crystal molecule to deflect, and the polarizer is used to determine the brightness state of the pixel. In the current liquid crystal display, a polarizer is one of the main structural components. The polarizer mainly uses iodine-based polarizer, in which iodine molecules play a role of polarization, but I5 with large molecular weight among the iodine molecules-The ions are readily decomposed or volatilized to form I3-Ions, in turn, affect the display effect. To improve the above situation, I5 is usually added to the polarizer-Content of ions, however I5-The other improvement method is to adjust the color point of the blue (B) pixel, namely, the thickness of the blue color resistance is increased, so that the display effect is provided, but the penetrability of blue light is reduced due to the increase of the thickness of the blue color resistance, and the display brightness of the module is reduced accordingly, so that the display effect is influenced.
In summary, the conventional display has problems of excessive blue light leakage, blue color point bias, large blue color resistance thickness in the display device, unsatisfactory display, and the like under the dark state.
Disclosure of Invention
The present disclosure provides a display panel and a display device, so as to solve the problems of excessive blue light leakage, blue color point bias, large blue color resistance thickness in a display device, unsatisfactory display and the like in the case of a dark state of the conventional display panel.
To solve the above technical problem, the technical solution provided by the embodiment of the present disclosure is as follows:
according to a first aspect of embodiments of the present disclosure, there is provided a display panel including:
a filter layer;
a light absorbing film layer disposed on the filter layer; and
the polarizing film layer is arranged adjacent to the light absorption film layer;
wherein at least one of the filter layer, the light absorbing film layer, and the polarizing film layer comprises a light absorbing material.
According to an embodiment of the present disclosure, the light absorbing material comprises poly [ bis (4-phenyl) (2,4, 6-trimethylphenyl) amine ] or a derivative of poly [ bis (4-phenyl) (2,4, 6-trimethylphenyl) amine ]. According to one embodiment of the present disclosure, the poly [ bis (4-phenyl) (2,4, 6-trimethylphenyl) amine ] has the chemical formula
According to an embodiment of the present disclosure, the heterocyclic compound includes a five-membered heterocyclic compound, a six-membered heterocyclic compound, or a benzo-heterocyclic compound.
According to an embodiment of the present disclosure, the light absorption film layer includes the light absorption material, and the thickness of the light absorption film layer is 100nm to 3000 nm.
According to an embodiment of the present disclosure, the light-emitting device further comprises a brightness enhancement film layer and a cover plate, wherein the cover plate is disposed on the brightness enhancement film layer, and the light absorption film layer is disposed between the brightness enhancement film layer and the cover plate.
According to an embodiment of the present disclosure, the polarizing film layer includes:
a release film layer;
the pressure-sensitive adhesive layer is arranged on the release film layer;
a polymer film layer disposed on the pressure sensitive adhesive film layer; and
a protective layer disposed on the polymer film layer.
According to an embodiment of the present disclosure, the light absorbing film layer is disposed between the release film layer and the protection layer, and the light absorbing film layer includes the light absorbing material.
According to an embodiment of the present disclosure, a display device is also provided, which includes the display panel provided by the embodiment of the present disclosure.
In summary, the beneficial effects of the embodiment of the present disclosure are: the light absorption material is added into the polaroid film layer of the display panel or the light absorption film layer is arranged in the display panel or the light absorption material is added into the light filter, and the light absorption material absorbs light with a certain wave band wavelength, so that the problem of light leakage under the dark state of the iodine polaroid in the liquid crystal display is solved. Meanwhile, the preparation process of each film layer in the display panel is simple, and the display effect quality of the display panel is high.
Drawings
In order to illustrate the embodiments or the technical solutions in the prior art more clearly, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some of the disclosed embodiments, and that other drawings can be obtained by those skilled in the art without inventive effort.
FIG. 1 is a schematic diagram of the structure of each layer of a display panel according to an embodiment of the disclosure;
FIG. 2 is a schematic diagram of a polarizer layer according to an embodiment of the disclosure;
FIG. 3 is a schematic structural diagram of a filter film according to an embodiment of the disclosure;
FIG. 4 is a schematic diagram of a display device according to an embodiment of the disclosure.
Detailed Description
The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present disclosure. It is to be understood that the described embodiments are merely illustrative of some, but not all embodiments of the disclosure. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any inventive step, are intended to be within the scope of the present disclosure.
In an embodiment of the disclosure, as shown in fig. 1, fig. 1 is a schematic view of a structure of each layer of a display panel according to an embodiment of the disclosure. The display panel includes an indium tin oxide film layer 100, a color filter film layer 101, a polarizer layer 103, and a glass layer 104. The color filter film layer 101 is disposed on the ito film layer 100, and the glass layer 104 is disposed on the polarizer layer 103.
The embodiment of the present disclosure further includes a light absorbing layer 102. The light absorbing film layer 102 is disposed between the color filter film layer 101 and the polarizer layer 103. The light absorbing layer 102 includes a light absorbing material. When light passes through the light absorbing film 102, the light absorbing material provided by the present disclosure is included in the light absorbing film 102, and the light absorbing material of the light absorbing film 102 absorbs light with a wavelength below 430nm, so that the light cannot pass through the light absorbing film 102. Furthermore, when the display panel is in a dark state, the display effect of the display panel is normal, and the problem that color dots in the dark state are bluish is avoided.
The light absorbing film layer 102 is completely prepared from the light absorbing material provided by the embodiment of the present disclosure, and when assembling, the light absorbing film layer 102 is disposed between the color filter film layer 101 and the polarizer layer 103, which does not interfere with the normal functions of other film layers, and meanwhile, in order to ensure the optimal display effect of the display panel, the thickness of the light absorbing film layer 102 is between 100nm and 3000 nm.
Specifically, in order to realize ultra-thinning of the display panel, in the embodiment of the present disclosure, the light absorption layer 102 may be omitted, and the light absorption material provided in the embodiment of the present disclosure is added in the color filter layer 101 or the polarizer layer 103, so that the color filter layer 101 or the polarizer layer 103 also has the function of the light absorption layer 102 in the present disclosure, i.e., can absorb light with a wavelength less than 430 nm. Therefore, when the display panel is in a dark state, the problem that the color point of the display panel is blue in the dark state can be effectively solved.
Specifically, the light absorbing materials provided in the embodiments of the present disclosure include poly [ bis (4-phenyl) (2,4, 6-trimethylphenyl) amine ] and derivatives thereof. The chemical structural formula of the poly [ bis (4-phenyl) (2,4, 6-trimethylphenyl) amine ] is shown in the specification
Specifically, in the above structural formula, R1The structure of (1) comprises alkoxy and ester group, and the length of the carbon chain is in the range of 1-10; r1The structure of (A) may be a straight-chain alkane having a nonconjugated structure, a branched alkane, a straight-chain alkane having an alkoxy group, or a branched alkane.
Further, R1The structure of (1) also includes compounds containing heterocyclic rings, which are five-membered and six-membered heterocyclic rings, benzo-heterocyclic compounds, and the like. Wherein the five-membered heterocyclic compound comprises: furan, thiophene, pyrrole, thiazole, imidazole, etc.; the six-membered heterocyclic compound includes: pyridine, pyrazine, pyrimidine, pyridazine, etc.; the benzoheterocyclic compounds include: indole, quinoline, pteridine, acridine, and the like.
The light absorption film layer made of the light absorption material can absorb light with the wavelength lower than 430nm, and the display panel does not have the problem of blue color point when the display panel is in a dark state due to the absorption of the light with the low wavelength, so the display quality of the display panel is better.
Meanwhile, the light absorption material disclosed by the embodiment of the disclosure has good heat resistance, the melting point of the light absorption material is greater than 400 ℃, and the high melting point does not influence various performances of the display panel at high temperature.
The display panel in the embodiment of the disclosure further comprises a glass substrate, a thin film transistor arranged on the glass substrate, a liquid crystal layer arranged on the thin film transistor layer, and a glass cover plate arranged on the outermost layer of the display panel.
In order to improve the display effect of the display panel, the display panel in the embodiment of the disclosure further includes a brightness enhancement film layer, and when the brightness enhancement film layer is disposed, the light absorption film layer is disposed between the brightness enhancement film layer and the outermost glass cover plate, so as to ensure the light absorption effect of the light absorption film layer in the display panel.
As shown in fig. 2, fig. 2 is a schematic structural diagram of a polarizer layer in an embodiment of the disclosure. The polarizer layer includes a release film 200, a light absorbing film layer 201, a pressure sensitive adhesive layer 202, a polymer film layer 203, and a protective film 204. In the embodiment of the disclosure, the light absorbing film layer 201 is disposed on the release film 200, the pressure sensitive adhesive layer 202 is disposed on the release film 200, the polymer film layer 203 is disposed on the pressure sensitive adhesive layer 202, and the protective film 204 is disposed on the polymer film layer 203.
In the embodiment of the present disclosure, the light absorbing film 201 made of a light absorbing material is directly disposed in the film of the polarizer. The thickness of the light absorption film layer 201 is 100nm-3000 nm. The light absorption film layer 201 is directly arranged in the film layer of the polarizer, which is beneficial to realizing the lightness and thinness of the display panel.
In preparing the light absorbing film layer 201, poly [ bis (4-phenyl) (2,4, 6-trimethylphenyl) amine ] and its derivative materials are dissolved in transparent resin, and dried to form a single layer film for subsequent use.
Specifically, the light absorbing film layer 201 in the embodiment of the disclosure may be disposed between any other two film layers between the release film 200 and the protection film 204 of the polarizer. After the setting is completed, the polarizer can absorb light with the wavelength less than 430nm, so that the problem that the color point is blue when the display panel is in a dark state is avoided.
As shown in fig. 3, fig. 3 is a schematic diagram of a filter structure according to an embodiment of the disclosure. The filter film layer 300 includes a light absorbing film layer 301. In the embodiment of the present disclosure, the light absorbing film layer 301 is directly formed in the filter film layer 300 to absorb light. The filter film layer 300 is a blue filter.
During preparation, the light absorbing material and the derivatives thereof are dissolved in the solvent of propylene glycol methyl ether acetate, and are uniformly dispersed in the blue photoresist, and after uniform dispersion, the process procedures of cleaning, coating, baking, exposing, developing and the like are continued, so as to finally obtain the blue filter film layer 300 with the absorbable wavelength of less than 430 nm.
As shown in fig. 4, fig. 4 is a schematic structural diagram of a display device according to an embodiment of the disclosure. The display device 400 includes the display panel 401 provided by the embodiment of the present disclosure, and at least one of the layers of the display panel 401 includes the light absorbing material provided by the embodiment of the present disclosure, and the light absorbing material absorbs light with a wavelength less than 430nm, thereby solving the problem that the color point of the display panel is blue when the display panel is in a dark state.
The display panel and the display device provided by the embodiments of the present disclosure are described in detail above, and the description of the embodiments is only used to help understanding the technical solution and the core idea of the present disclosure; those of ordinary skill in the art will understand that: it is to be understood that modifications may be made to the arrangements described in the embodiments above, and such modifications or alterations may be made without departing from the spirit of the respective arrangements of the embodiments of the present disclosure.
Claims (9)
1. A display panel, comprising:
a filter layer; and
a polarizing film layer;
wherein at least one of the filter layer and the polarizing film layer comprises a light absorbing material comprising a poly [ bis (4-phenyl) (2,4, 6-trimethylphenyl) amine ] or a derivative of poly [ bis (4-phenyl) (2,4, 6-trimethylphenyl) amine ].
2. The display panel of claim 1, wherein the poly [ bis (4-phenyl) (2,4, 6-trimethylphenyl) amine ] has the chemical formula
3. The display panel according to claim 2, wherein the heterocyclic compound comprises a five-membered heterocyclic compound, a six-membered heterocyclic compound, or a benzo-heterocyclic compound.
4. The display panel of claim 1, further comprising a light absorbing film layer comprising the light absorbing material, the light absorbing film layer having a thickness of 100nm to 3000 nm.
5. The display panel of claim 4, further comprising a brightness enhancing film layer and a cover plate disposed over the brightness enhancing film layer, the light absorbing film layer being disposed between the brightness enhancing film layer and the cover plate.
6. The display panel according to claim 4, wherein the polarizing film layer comprises:
a release film layer;
the pressure-sensitive adhesive layer is arranged on the release film layer;
a polymer film layer disposed on the pressure sensitive adhesive film layer; and
a protective layer disposed on the polymer film layer.
7. The display panel of claim 6, wherein the light absorbing film layer is disposed between the release film layer and the protective layer, the light absorbing film layer comprising the light absorbing material.
8. The display panel of claim 1, wherein the filter layer comprises a blue filter layer comprising the light absorbing material.
9. A display device characterized by comprising the display panel according to any one of claims 1 to 8.
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| CN201910707609.5A CN110441954B (en) | 2019-08-01 | 2019-08-01 | Display panel and display device |
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| CN201910707609.5A CN110441954B (en) | 2019-08-01 | 2019-08-01 | Display panel and display device |
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| CN110441954B true CN110441954B (en) | 2022-03-29 |
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|---|---|---|---|---|
| EP0157639A2 (en) * | 1984-04-03 | 1985-10-09 | Konica Corporation | Heat-developable multilayered color photo-sensitive material |
| US6245118B1 (en) * | 1999-09-10 | 2001-06-12 | General Electric Company | Resinous compositions containing blue dye |
| CN1938586A (en) * | 2004-01-28 | 2007-03-28 | 科学与工业研究委员会 | A method for standardization of chemical and therapeutic values of foods & medicines using animated chromatographic fingerprinting |
| CN103676203A (en) * | 2013-12-05 | 2014-03-26 | 上海伟星光学有限公司 | Dark brown resin lens with visible-light color-changing performance and manufacture method thereof |
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