CN110873915A - Polaroid and display panel - Google Patents
Polaroid and display panel Download PDFInfo
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- CN110873915A CN110873915A CN201811012004.6A CN201811012004A CN110873915A CN 110873915 A CN110873915 A CN 110873915A CN 201811012004 A CN201811012004 A CN 201811012004A CN 110873915 A CN110873915 A CN 110873915A
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/30—Polarising elements
- G02B5/3025—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state
- G02B5/3033—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/15—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components having potential barriers, specially adapted for light emission
- H01L27/153—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components having potential barriers, specially adapted for light emission in a repetitive configuration, e.g. LED bars
- H01L27/156—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components having potential barriers, specially adapted for light emission in a repetitive configuration, e.g. LED bars two-dimensional arrays
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/30—Devices specially adapted for multicolour light emission
- H10K59/35—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Power Engineering (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Optics & Photonics (AREA)
- Polarising Elements (AREA)
- Electroluminescent Light Sources (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The application discloses polaroid and display panel, wherein, the polaroid includes polarisation layer and light conversion layer, and light conversion layer sets up in the both sides of polarisation layer or one of them side, and it includes a plurality of light conversion blocks of a plurality of different light conversion colours. The polaroid integrates the light conversion function and the polarization function and can convert light with different colors.
Description
Technical Field
The application relates to the technical field of display, in particular to a polarizer and a display panel.
Background
Display technology is rapidly developed, and display panels are widely applied to electronic devices such as televisions, computers, mobile phones and the like, and are gradually developed towards light weight, high luminous efficiency and the like.
The polarizer is an important element in the display panel, and research on the structure and function of the polarizer is more and more intensive, however, the current polarizers all have a single function, and further thinning of the display panel cannot be achieved.
Disclosure of Invention
The application provides a polaroid and display panel to realize the integration of light conversion function and polarisation function, and can convert the light that obtains different colours.
To achieve the above object, the present application provides a polarizer, which includes: a polarizing layer; and the light conversion layer is arranged on two sides or one side of the polarizing layer and comprises a plurality of light conversion blocks with different light conversion colors.
The polarizing layer is defined with a plurality of pixel areas arranged in an array, and each light conversion block is arranged corresponding to one pixel area.
The plurality of pixel areas comprise a red pixel area, a green pixel area and a blue pixel area which are periodically and sequentially arranged; the multiple light conversion blocks comprise red light quantum dot blocks and green light quantum dot blocks; the red light quantum dot blocks are arranged corresponding to the red pixel areas, and the green light quantum dot blocks are arranged corresponding to the green pixel areas.
Wherein, the light conversion blocks are quadrangles with the side length of 1-100 μm or round/oval with the diameter of 1-100 μm.
The polarizer further comprises a sealing layer, wherein the sealing layer is arranged on one side of the polarizing layer, which is provided with the light conversion layer, and covers the light conversion layer.
Wherein the polarizer further comprises: the protective layer is arranged on one side, away from the light conversion layer, of the polarizing layer; and the release layer is arranged on one side of the sealing layer, which is far away from the light conversion layer.
To achieve the above object, the present application proposes a display panel including: the light-emitting substrate comprises a light-emitting substrate and a polaroid arranged on the light-emitting substrate; wherein, the polaroid includes: a polarizing layer; and the light conversion layer is arranged on two sides or one side of the polarizing layer and comprises a plurality of light conversion blocks with different light conversion colors.
The light conversion device comprises a polarizing layer, a light conversion block and a light source, wherein the polarizing layer is defined with a plurality of pixel areas which are arranged in an array manner, and each light conversion block corresponds to one pixel area; the light-emitting substrate comprises a plurality of light-emitting diodes arranged in an array; each light emitting diode corresponds to a pixel region.
The light emitting diode array comprises a blue light emitting diode, an ultraviolet light emitting diode or a white light emitting diode.
The polarizer further comprises a sealing layer, wherein the sealing layer is arranged on one side of the polarizing layer, which is provided with the light conversion layer, and covers the light conversion layer; the polaroid is adhered to the light-emitting substrate through the sealing layer.
The polarizer comprises a polarizing layer and a light conversion layer, so that the light conversion function and the polarizing function are realized at the same time, the light conversion layer is arranged on two sides or one side of the polarizing layer, and the polarizer comprises a plurality of light conversion blocks with different light conversion colors, so that light with different colors can be obtained in a convertible manner.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of a polarizer of the present application;
FIG. 2 is a top view of an embodiment of the polarizer shown in FIG. 1;
FIG. 3 is a schematic structural diagram of another embodiment of a polarizer of the present application;
FIG. 4 is a schematic structural diagram of another embodiment of a polarizer of the present application;
FIG. 5 is a schematic flow chart of a method for manufacturing a polarizer according to the present application.
Fig. 6 is a schematic structural diagram of an embodiment of a display panel according to the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the specific embodiments described herein are merely illustrative of the application and are not limiting of the application. It should be further noted that, for the convenience of description, only some of the structures related to the present application are shown in the drawings, not all of the structures. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless explicitly specifically limited otherwise. All directional indicators in the embodiments of the present application (such as upper, lower, left, right, front, rear, top, bottom … …) are only used to explain the relative positional relationship between the components, the movement, etc. in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a polarizer 100 of the present application, in which the polarizer includes a polarizing layer 11 and a light conversion layer 12.
Wherein, the polarization layer 11 plays the polarization effect to light, specifically, it can be including realizing the polyvinyl alcohol (PVA) layer of polarization effect, because the PVA layer is very easy to hydrolyze, consequently it has the triacetyl cellulose (TAC) film that the one deck has high light transmissivity, the water proofness is good and have certain mechanical strength still to compound respectively in the both sides of PVA layer, and the polarization layer 11 includes the PVA layer in this embodiment promptly, and the TAC film of PVA layer both sides.
The light conversion layer 12 functions to convert the color of the light, and is disposed on one or both sides of the polarizing layer 11, i.e. on one side of the polarizing layer 11, or on both sides of the polarizing layer 11, and the light conversion layer 12 is disposed on one side of the polarizing layer 11 in the embodiment shown in fig. 1.
The light conversion layer 12 constitutes the polarizer 100 together with the polarizing layer 11, so that the polarizer 100 can simultaneously realize a polarizing function and a light conversion function.
The light conversion layer 12 further includes a plurality of light conversion blocks of different light conversion colors, for example, a first light conversion block 121 and a second light conversion block 122. Light of different colors is converted by the first and second light conversion blocks 121 and 122. For a display panel, it can replace the function of a color filter. Further contributes to the lightness and thinness of the display panel. The first and second light conversion blocks are block structures made of light conversion materials, and the light conversion materials may be quantum dots or fluorescent materials.
The light conversion block can emit light with different colors, namely the light conversion block can be used as a color light source for realizing color display, and self-luminescence of pixel points can be realized if the light conversion block is arranged corresponding to the pixel points. In this embodiment, a plurality of pixel regions arranged in an array are further defined on the polarizing layer 11, that is, a plurality of pixel points corresponding to the display panel, and each of the first light conversion blocks 121 and each of the second light conversion blocks 122 are respectively disposed corresponding to one pixel region, that is, each of the light conversion blocks corresponds to one pixel point. The light conversion block emits light to realize self-luminescence of each pixel point in the display panel. The first light conversion block 121 and the second light conversion block 122 corresponding to the pixel points may be quadrangles having a side length of 1 μm to 100 μm, or may be circles/ellipses having a diameter of 1 μm to 100 μm, and specifically, the first light conversion block 121 and the second light conversion block 122 may be squares having a side length of 50 μm, or circles having a diameter of 50 μm.
There are many ways to arrange color pixels in the display panel, and the light conversion blocks in the light conversion layer can be correspondingly arranged. For example, as shown in FIG. 2, FIG. 2 is a top view of the embodiment of the polarizer shown in FIG. 1. The plurality of pixel regions defined on the polarizing layer 11 in fig. 2 include a red pixel region R, a green pixel region G, and a blue pixel region B, which are periodically arranged in sequence; the corresponding display panel is in a traditional RGB arrangement mode.
The first light conversion block 121 selects red light quantum dots, and is arranged corresponding to the red pixel region; the second light conversion block 122 selects green light quantum dots, and is disposed corresponding to the green pixel region. For this, a blue light source may be used to excite the red light quantum dots to generate red light and the green light quantum dots to generate green light, respectively, and for the blue pixel region B, no light conversion block is required.
The red light quantum dot and the green light quantum dot respectively comprise a luminescent core and an inorganic protective shell wrapped outside the luminescent core, and the luminescent core of the red light quantum dot is made of one or more of CdSe, Cd2SeTe, InAs, ZnCuInSxSey and CuInSx; the material of the luminescent core of the green light quantum dot comprises one or more of ZnCdSe2, InP, Cd2SSe, ZnCuInSxSey and CuInSx; the inorganic protective shells of the red light quantum dots and the green light quantum dots respectively comprise one or more of CdS, ZnSe, ZnCdS2, ZnS and ZnO.
For other color pixel arrangement modes, such as RGBW or Pentiel, based on the above principle, a corresponding arrangement mode may be adopted for the light conversion blocks, for example, for RGBW, a third light conversion block may be further arranged to emit light of four colors.
The polarizer of the embodiment comprises a polarizing layer and a light conversion layer, can realize a light conversion function and a polarizing function at the same time, and the light conversion layer is arranged on one side or the other side of the polarizing layer and comprises a plurality of first light conversion blocks and second light conversion blocks with different light conversion colors, so that light with different colors can be obtained through conversion.
As described above, the light conversion layers may also be disposed at both sides of the polarizing layer, respectively, for example, the first light conversion block of the light conversion layers is disposed at one side of the polarizing layer, and the second light conversion block is disposed at the other side of the polarizing layer. Referring to fig. 3, fig. 3 is a schematic structural diagram of another embodiment of the polarizer of the present application, in which the polarizer 200 of the present embodiment includes a polarizer 21 and a light conversion layer 22. It is similar to the polarizer 100 of the above embodiment, and the description of the same parts is omitted
The light conversion layer 22 in this embodiment includes a first light conversion block 221 and a second light conversion block 222, and the first light conversion block 221 is disposed on one side of the polarizer 21, and the second light conversion block 222 is disposed on the other side of the polarizer 21.
For the polarizer 200 of the present embodiment, the first light conversion block 221 and the second light conversion block 222 are formed on two sides of the polarizer 21, respectively, so that the two light conversion blocks do not interfere with each other. Especially for a high-resolution display screen, if the light conversion blocks corresponding to the pixels have small size and small distance and are arranged on one side together, the light conversion blocks are easy to influence each other, so that the light conversion blocks can be arranged on two sides respectively.
The polarizer of the embodiment comprises a polarizing layer and a light conversion layer, can realize a light conversion function and a polarizing function at the same time, and the light conversion layer is arranged on two sides or one side of the polarizing layer and comprises a plurality of first light conversion blocks and second light conversion blocks with different light conversion colors, so that light with different colors can be obtained through conversion.
To facilitate the assembly of the polarizer to form the display panel, the present application further provides a polarizer, please refer to fig. 4, fig. 4 is a schematic structural diagram of another embodiment of the polarizer of the present application, in which the polarizer 300 of the present embodiment includes: a polarizing layer 31, a light converting layer 32, and a sealing layer 33. The structures of the polarizing layer 31 and the light conversion layer 32 are similar to those of the polarizers 100 and 200 of the above embodiments, and are not described herein again.
The light conversion layer 32 is disposed at both sides or one side of the polarizing layer 31 in this embodiment, and the light conversion layer 32 includes various light conversion blocks, such as a first light conversion block 321 and a second light conversion block 322. The sealing layer 33 is disposed on the side of the polarizing layer 31 on which the light conversion layer 32 is disposed, and covers the light conversion layer 32, and if the light conversion layer 32 is disposed on the side of the polarizing layer 31, the sealing layer 33 is disposed only on the side; if the light conversion layers 32 are disposed on both sides of the polarizing layer 31, the sealing layers 33 are also disposed on both sides of the polarizing layer 31.
Taking a structure similar to the polarizer 100 as an example, the light conversion layer 32 is disposed on one side of the polarizing layer 31, and the sealing layer 33 may be a pressure sensitive adhesive, which may serve as an adhesive for adhering to other elements in the display panel while sealing the light conversion layer 32.
The polarizer 300 further includes a protective layer 34 and a release layer 35. The protection layer 34 is disposed on a side of the polarizing layer 31 away from the light conversion layer 32, and is used to protect the polarizing layer 31, and a material of the protection layer 34 includes a plastic material such as Polyethylene terephthalate (PET). The release layer 35 is disposed on a side of the sealing layer 33 away from the light conversion layer 32 for protecting the pressure sensitive adhesive.
The polarizer 300 including the polarizing layer 31, the light conversion layer 32, the sealing layer 33, the protective layer 34 and the release layer 35 forms a polarizer finished product. The polarizer of the embodiment comprises a polarizing layer and a light conversion layer, can realize a light conversion function and a polarizing function at the same time, and the light conversion layer is arranged on two sides or one side of the polarizing layer and comprises a plurality of first light conversion blocks and second light conversion blocks with different light conversion colors, so that light with different colors can be obtained through conversion.
The polarizer manufacturing process provided in the present application can refer to fig. 5, and fig. 5 is a schematic flow chart of the polarizer manufacturing method of the present application. The manufacturing method includes the following steps.
S101: a polarizing layer is produced.
The polarizing layer prepared in the step comprises a PVA film and TAC films which respectively realize protection on two sides of the PVA film, the PVA film is prepared by adopting an extension method or a coating method, and then the TAC films and the PVA film are compounded to form the polarizing layer.
S102: a first light conversion block is formed at one side of the polarizing layer.
S103: a second light conversion block is formed at one side or the other side of the polarizing layer.
The first and second light conversion blocks, which realize different light conversion colors, are also different in material, and thus the first and second light conversion blocks are respectively formed in two steps. The process can adopt the processes of nano-imprinting, screen printing, ink-jet printing, photoetching and the like.
S104: and forming a sealing layer on the first light conversion block and the second light conversion block.
The sealing layer may be formed by applying a pressure sensitive adhesive in this step. If the first light conversion block and the second light conversion block are made of quantum dot materials, before the pressure-sensitive adhesive is coated, the pressure-sensitive adhesive needs to be subjected to water and oxygen removal treatment, so that the luminous effect is prevented from being influenced by the corrosion of water and oxygen after the quantum dots are packaged.
The polarizer can be applied to a display panel, and specifically refer to fig. 6, where fig. 6 is a schematic structural diagram of a display panel according to an embodiment of the present application. The display panel 400 of the present embodiment includes a light-emitting substrate 41 and a polarizer 42. The polarizer 42 in this embodiment is similar to the above embodiments, and the description of the same parts is omitted.
The polarizer 42 includes a polarizing layer 421 and a light conversion layer 422, and the light conversion layer 422 is disposed on two sides or one side of the polarizing layer 41 and includes a plurality of first light conversion blocks 4221 and second light conversion blocks 4222 for converting light into different colors.
The polarizing layer 421 defines a plurality of pixel regions arranged in an array, and each of the first light conversion blocks 4221 and each of the second light conversion blocks 4222 are respectively disposed corresponding to one of the pixel regions.
A plurality of light emitting diodes 411 arranged in an array may also be correspondingly disposed on the light emitting substrate 41, each light emitting diode 411 corresponds to a pixel region, that is, each pixel corresponds to one light emitting diode 411, and the pixel realizes self-luminescence, at this time, a Micro light emitting diode (Micro-LED) may be adopted, so as to improve the light emitting efficiency. The led array 411 may be a blue led, a uv led, or a white led corresponding to different light conversion blocks.
The polarizer 42 further includes a sealing layer 423 disposed on the side of the polarizing layer 421 where the light conversion layer 422 is disposed, and covering the light conversion layer 422; the polarizer 42 is attached to the light-emitting substrate 41 through the sealing layer 423.
The light emitted from the light emitting substrate 41 directly enters the polarizer 42, and if the light conversion layer 422 is disposed close to the light emitting substrate 41, the light utilization rate is high, that is, the light conversion layer 422 is disposed on one side of the polarizing layer 421, and the light conversion layer 422 is close to the light emitting substrate 41, compared with the light conversion layer 422 disposed on two sides of the polarizing layer 421, the light utilization rate is higher.
The polarizer in the display panel of the embodiment includes a polarizing layer and a light conversion layer, that is, the light conversion layer is integrated in the polarizer, and the light conversion function and the polarizing function are realized at the same time; and the light conversion layer is arranged on two sides or one side of the polarizing layer and comprises a plurality of light conversion blocks with different light conversion colors, so that the conversion of light with different colors can be realized, the structure of the display panel is simplified, and the thickness of the display panel is reduced.
The above description is only for the purpose of illustrating embodiments of the present application and is not intended to limit the scope of the present application, and all modifications of equivalent structures and equivalent processes, which are made by the contents of the specification and the drawings of the present application or are directly or indirectly applied to other related technical fields, are also included in the scope of the present application.
Claims (10)
1. A polarizer, comprising:
a polarizing layer;
and the light conversion layer is arranged on two sides or one side of the polarizing layer and comprises a plurality of light conversion blocks with different light conversion colors.
2. The polarizer of claim 1, wherein the polarizing layer defines a plurality of pixel regions arranged in an array, and each of the light converting blocks is disposed corresponding to one of the pixel regions.
3. The polarizer according to claim 2, wherein said plurality of pixel regions comprise a red pixel region, a green pixel region and a blue pixel region which are arranged in order periodically; the multiple light conversion blocks comprise red light quantum dot blocks and green light quantum dot blocks; the red light quantum dot block is arranged corresponding to the red pixel area, and the green light quantum dot block is arranged corresponding to the green pixel area.
4. The polarizer according to claim 2, wherein said plurality of light conversion blocks are each a quadrangle having a side length of 1 μm to 100 μm or a circle/ellipse having a diameter of 1 μm to 100 μm.
5. The polarizer according to any of claims 1 to 4, further comprising a sealing layer disposed on the side of the polarizing layer on which the light conversion layer is disposed and covering the light conversion layer.
6. The polarizer of claim 5, further comprising:
the protective layer is arranged on one side, away from the light conversion layer, of the polarizing layer;
and the release layer is arranged on one side, deviating from the light conversion layer, of the sealing layer.
7. The display panel is characterized by comprising a light-emitting substrate and a polarizer arranged on the light-emitting substrate;
wherein, the polaroid includes:
a polarizing layer;
and the light conversion layer is arranged on two sides or one side of the polarizing layer and comprises a plurality of light conversion blocks with different light conversion colors.
8. The display panel of claim 7, wherein the polarizer layer defines a plurality of pixel regions arranged in an array, and each of the light conversion blocks is disposed corresponding to one of the pixel regions;
the light-emitting substrate comprises a plurality of light-emitting diodes arranged in an array; each light emitting diode corresponds to one pixel region.
9. The display panel of claim 8, wherein the array of light emitting diodes comprises blue light emitting diodes or ultraviolet light emitting diodes or white light emitting diodes.
10. The display panel according to claim 7, wherein the polarizer further comprises a sealing layer disposed on a side of the polarizing layer on which the light conversion layer is disposed and covering the light conversion layer; the polaroid is adhered to the light-emitting substrate through the sealing layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811012004.6A CN110873915A (en) | 2018-08-31 | 2018-08-31 | Polaroid and display panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811012004.6A CN110873915A (en) | 2018-08-31 | 2018-08-31 | Polaroid and display panel |
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| CN110873915A true CN110873915A (en) | 2020-03-10 |
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| CN201811012004.6A Pending CN110873915A (en) | 2018-08-31 | 2018-08-31 | Polaroid and display panel |
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| CN102854558A (en) * | 2012-09-27 | 2013-01-02 | 京东方科技集团股份有限公司 | Polaroid and display device |
| US20150331278A1 (en) * | 2014-05-14 | 2015-11-19 | Japan Display Inc. | Display device |
| CN104064658A (en) * | 2014-07-05 | 2014-09-24 | 福州大学 | LED display screen and three-dimensional display device thereof |
| CN105526558A (en) * | 2014-09-30 | 2016-04-27 | 业鑫科技顾问股份有限公司 | Color conversion film, display device using color conversion film and method for manufacturing color conversion film |
| CN104360536A (en) * | 2014-10-29 | 2015-02-18 | 京东方科技集团股份有限公司 | Display panel and display device |
| US20170146859A1 (en) * | 2015-11-20 | 2017-05-25 | A. U. Vista, Inc. | Quantum-dot embedded polarizer component and display device using same |
| CN105785494A (en) * | 2016-05-26 | 2016-07-20 | 京东方科技集团股份有限公司 | Polarizer and display panel |
| CN106680925A (en) * | 2017-03-15 | 2017-05-17 | 京东方科技集团股份有限公司 | Polaroid and display device |
| CN207742367U (en) * | 2017-12-30 | 2018-08-17 | 深圳市南德谱光电有限公司 | A kind of polaroid |
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