CN112750961A - Organic light-emitting display screen and preparation method thereof - Google Patents
Organic light-emitting display screen and preparation method thereof Download PDFInfo
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- CN112750961A CN112750961A CN202011337795.7A CN202011337795A CN112750961A CN 112750961 A CN112750961 A CN 112750961A CN 202011337795 A CN202011337795 A CN 202011337795A CN 112750961 A CN112750961 A CN 112750961A
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- 238000002360 preparation method Methods 0.000 title claims abstract description 7
- 239000000463 material Substances 0.000 claims abstract description 28
- 238000005520 cutting process Methods 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 15
- 239000006059 cover glass Substances 0.000 claims description 14
- 230000003287 optical effect Effects 0.000 claims description 11
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 239000000853 adhesive Substances 0.000 claims description 7
- 230000001070 adhesive effect Effects 0.000 claims description 7
- 230000008020 evaporation Effects 0.000 claims description 4
- 238000001704 evaporation Methods 0.000 claims description 4
- 238000005507 spraying Methods 0.000 claims description 3
- 239000000126 substance Substances 0.000 abstract description 3
- 238000009966 trimming Methods 0.000 abstract 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 7
- 229920002451 polyvinyl alcohol Polymers 0.000 description 7
- 229920002284 Cellulose triacetate Polymers 0.000 description 5
- 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 5
- 239000002184 metal Substances 0.000 description 3
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- 238000002834 transmittance Methods 0.000 description 2
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/868—Arrangements for polarized light emission
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/85—Arrangements for extracting light from the devices
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- 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
- H10K59/10—OLED displays
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- 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
- H10K59/38—Devices specially adapted for multicolour light emission comprising colour filters or colour changing media [CCM]
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
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Abstract
The invention discloses an organic light-emitting display screen and a preparation method thereof, wherein the organic light-emitting display screen comprises a display panel and a polaroid, a shading material is covered on the edge of the polaroid to form a shading edge, the polaroid is covered on the display panel, the shading edge covers the edge of the display panel, and a visible area is formed in the area of the display panel, which is positioned at the inner side of the shading edge. The shading material is covered on the polaroid instead of being directly arranged on the display panel, so that the problem that the shading material is not uniformly distributed due to direct attachment of the shading material on organic substances of the display panel is avoided, the forming difficulty of the shading edge is reduced, the forming quality of the shading edge is improved, and light leakage at the edge of the display panel is effectively prevented. By enabling the initial area of the polaroid to be larger than the area of the display panel and cutting and trimming the edge of the polaroid after the polaroid is assembled, the good coverage of the shading edge on the edge of the display panel can be ensured, and the probability of light leakage of the display panel is further reduced.
Description
Technical Field
The invention relates to the technical field of display, in particular to an organic light-emitting display screen and a preparation method thereof.
Background
The edge of the screen of the mobile phone or the display can be surrounded by a circle of black shading edge, the shading edge surrounds the visual area of the screen, the shading edge has the primary function of preventing light leakage of the screen, and if the shading edge is not arranged, an obvious halo can be seen at the edge of the screen. For an organic light emitting display, a light shielding material is generally covered on the edge of a display panel to form a light shielding edge, and the organic substance on the display panel easily causes uneven adhesion of the light shielding material, thereby causing light leakage in the light shielding edge region.
Disclosure of Invention
The invention aims to provide an organic light-emitting display screen and a preparation method thereof, the organic light-emitting display screen has low forming difficulty of a light shielding edge and good forming quality, and the light leakage phenomenon at the edge of a display panel can be avoided.
In order to achieve the purpose, the invention adopts the following technical scheme:
on the one hand, provide an organic light emitting display screen, including display panel and polaroid, the edge cover of polaroid has shading material in order to form the shading limit, the polaroid covers on the display panel, the shading limit covers display panel's edge, display panel is located the inboard regional visible region that forms of shading limit.
As a preferable scheme of the organic light emitting display screen of the present invention, the polarizer includes a linear polarizer and a phase difference plate, which are stacked, and the phase difference plate is a quarter-wave plate.
As a preferable aspect of the organic light emitting display panel of the present invention, the linear polarizer includes a TAC film and a PVA film which are stacked.
As a preferable scheme of the organic light emitting display screen of the present invention, the organic light emitting display screen further includes cover glass, and the cover glass is attached to the polarizer through an optical adhesive.
As a preferable scheme of the organic light emitting display screen of the present invention, the cover glass is disposed on a surface of the polarizer facing away from the display panel.
As a preferable aspect of the organic light emitting display panel of the present invention, the cover glass is disposed between the polarizer and the display panel.
In another aspect, a method for manufacturing an organic light emitting display panel is provided, which includes the steps of:
s1, providing a display panel, a polaroid and a shading material, wherein the area of the polaroid is larger than that of the display panel;
s2, covering a shading material on the edge of the polaroid to form a circle of shading edge on the edge of the polaroid;
s3, positioning and assembling the polaroid to enable the edge of the display panel to be completely covered by the shading edge;
and S4, after the polaroid is assembled, cutting the edge of the polaroid to enable the edge of the polaroid to be flush with the edge of the display panel.
As a preferable embodiment of the method for manufacturing an organic light emitting display panel of the present invention, the light blocking edge is disposed on one surface or both surfaces of the polarizer.
As a preferable scheme of the method for manufacturing the organic light emitting display screen, the polarizer is attached to the display panel through an optical adhesive.
As a preferable scheme of the method for manufacturing the organic light-emitting display screen, the light-shielding material is coated on the edge of the polarizer by a spraying or evaporation process.
The invention has the beneficial effects that:
according to the organic light-emitting display screen, the shading material is covered on the polaroid instead of being directly arranged on the display panel, so that the problem that the shading material is not uniformly distributed due to the fact that the shading material is directly attached to organic substances of the display panel is solved, the forming difficulty of the shading edge is reduced, the forming quality of the shading edge is improved, and light leakage at the edge of the display panel is effectively prevented. According to the preparation method of the organic light-emitting display screen, the initial area of the polaroid is larger than the area of the display panel, and the edge of the polaroid is cut and trimmed after the polaroid is assembled, so that the good coverage of the light shielding edge on the edge of the display panel can be ensured, and the probability of light leakage of the display panel is further reduced.
Drawings
FIG. 1 is a schematic side view of an organic light emitting display panel according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a polarizer according to an embodiment of the present invention;
FIG. 3 is a schematic side view illustrating an assembled polarizer and display panel according to an embodiment of the present invention;
FIG. 4 is a schematic side view of an OLED panel according to another embodiment of the present invention;
fig. 5 is a schematic side view of an organic light emitting display panel according to another embodiment of the present invention.
In the figure:
1. a display panel; 2. a polarizer; 21. a linear polarizer; 211. a TAC film; 212. a PVA film; 22. a phase difference plate; 3. a light shielding edge; 4. a cover glass.
Detailed Description
Advantages and features of the present invention and methods of accomplishing the same will become apparent with reference to the following detailed description of the embodiments taken in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various forms, which are provided only to complete the disclosure of the present invention and make those skilled in the art sufficiently understand the scope of the present invention, and the present invention is limited only by the scope of the claims. Like reference numerals denote like constituent elements throughout the specification.
Hereinafter, the present invention is described in detail with reference to the accompanying drawings.
Example one
In order to reduce the covering difficulty of the light-shielding material and reduce the light leakage probability at the edge of the screen, as shown in fig. 1, the organic light-emitting display panel of the embodiment includes a display panel 1 and a polarizer 2, the edge of the polarizer 2 is covered with the light-shielding material to form a light-shielding edge 3, the polarizer 2 is covered on the display panel 1, the light-shielding edge 3 covers the edge of the display panel 1, and the area of the display panel 1 located inside the light-shielding edge 3 forms a visible area.
The polarizer 2 has a function of selectively absorbing light vibration in different directions, and the polarizer 2 has a special direction, when a beam of natural light irradiates the polarizer 2, the light vibration component perpendicular to the direction is completely absorbed, and only the light vibration component parallel to the direction passes through. For the organic light emitting display screen, the display panel 1 has a cathode made of metal, the metal has high reflectivity, and if the polarizer 2 is not arranged, external light can generate serious reflection after being emitted into the display panel 1, so that the contrast is reduced, and the content presented by the display screen is difficult to see clearly.
The organic light-emitting display screen of this embodiment covers shading material on polaroid 2 rather than directly setting up on display panel 1, avoids shading material because of directly attaching to the problem that the shading material distributes inhomogeneously on display panel 1's organic matter produces, has reduced the shaping degree of difficulty of shading limit 3, has improved the shaping quality of shading limit 3, effectively prevents that the light leak from taking place in the edge of display panel 1.
As shown in fig. 2, the polarizer 2 includes a linear polarizer 21 and a phase difference plate 22, which are stacked, and the phase difference plate 22 is a quarter-wave plate. The quarter-wave plate is also called a quarter retardation plate, and when light with a certain wavelength is vertically incident and passes through, the outgoing ordinary light and abnormal light have a phase difference of 1/4 wavelengths. In the optical path it is often used to transform linearly polarized light into circularly or elliptically polarized light; or vice versa. Such waveplates are typically fabricated as parallel planar plates cut from birefringent material parallel to the optical axis, and have a thickness that is precisely an odd multiple of the product of the difference between the two principal axes of the birefringent material and a given wavelength 1/4. After the external light passes through the combination of the linear polarizer 21 and the phase difference plate 22, the human eye cannot see the reflected light emitted from the surface of the metal cathode.
Further, the linear polarizer 21 includes a TAC film 211 and a PVA film 212 which are stacked. PVA is polyvinyl alcohol, and determines key optical indexes such as polarizing performance, transmittance, and color tone of the linear polarizer 21. Since the polarizing layer made of the PVA film 212 is easy to absorb water and fade to lose the polarizing performance, a TAC (Triacetyl Cellulose) film with uniform optical property and good transparency is coated on the surface of the PVA film 212 to isolate moisture and air for protecting the polarizing layer, so that the linear polarizer 21 has high reliability.
The organic light emitting display panel of the embodiment is manufactured by the following method:
s1, providing a display panel 1, a polaroid 2 and a shading material, wherein the area of the polaroid 2 is larger than that of the display panel 1;
s2, covering the shading material on the edge of the polaroid 2 to form a circle of shading edge 3 on the edge of the polaroid 2;
s3, positioning and assembling the polaroid 2 to enable the edge of the display panel 1 to be completely covered by the shading edge 3;
and S4, after the polaroid 2 is assembled, cutting the edge of the polaroid 2 to enable the edge of the polaroid 2 to be flush with the edge of the display panel 1.
As shown in fig. 3, in the method for manufacturing the organic light emitting display panel of this embodiment, the initial area of the polarizer 2 is larger than the area of the display panel 1, and the edge of the polarizer 2 is cut and trimmed after the polarizer 2 is assembled, so that the light shielding edge 3 can be ensured to cover the edge of the display panel 1 well, and the probability of light leakage at the edge of the display panel 1 is further reduced.
Further, a light-shielding edge is provided on one or both sides of the polarizer 2. Shading limit 3 can set up the one side of 2 with the contact of display panel of polaroids, and when 2 coats and is stamped other structures of polaroid, shading limit 3 can set up the one side that deviates from display panel 1 at 2 polaroids, also can all set up shading limit 3 at 2 two sides of polaroid.
The shading material is covered on the edge of the polaroid 2 by adopting a spraying or evaporation process. The light-shielding edge 3 may be formed by various methods depending on the properties of the light-shielding material. The evaporation process can make the thickness of the shading edge 3 more uniform and compact, but has higher cost and lower production efficiency.
The polarizer 2 is attached to the display panel 1 through optical cement. The optical adhesive has the light transmittance of over 90 percent, good adhesive strength, capability of being cured at room temperature or middle temperature, small curing shrinkage and the like, is simple to use, and can firmly combine the polarizer 2 with the display panel 1.
Example two
As shown in fig. 4, in this embodiment, the organic light emitting display further includes a cover glass 4, and the cover glass 4 is attached to the polarizer 2 through an optical adhesive. The cover plate glass 4 provides protection for the organic light-emitting display screen, and can effectively prevent components below the cover plate glass 4 from being damaged or abraded under the action of external force.
The organic light emitting display panel of the present embodiment is a touch panel, and thus the cover glass 4 is disposed on a surface of the polarizer 2 facing away from the display panel 1, so as to prevent the surface of the polarizer 2 from being abraded.
EXAMPLE III
As shown in fig. 5, in the present embodiment, a cover glass 4 is disposed between the polarizer 2 and the display panel 1. The organic light emitting display panel of the present embodiment is a non-touch panel, and the cover glass 4 is used to protect the display panel 1 and support the polarizer 2. For a non-touch screen, the polarizer 2 disposed outside does not frequently contact with fingers or other objects, and the surface of the polarizer 2 may also be provided with a coating layer with higher hardness, so that the polarizer 2 may be prevented from being scratched, and has a longer service life.
Although the embodiments of the present invention have been described above with reference to the accompanying drawings, the present invention is not limited to the above embodiments, but may be manufactured in various forms, and those skilled in the art will appreciate that the present invention may be embodied in other specific forms without changing the technical spirit or essential features of the invention. It is therefore to be understood that the above described embodiments are illustrative and not restrictive in all respects.
Claims (10)
1. The utility model provides an organic light-emitting display screen, its characterized in that, includes display panel and polaroid, the edge cover of polaroid has shading material in order to form the shading limit, the polaroid covers on the display panel, the shading limit covers display panel's edge, display panel is located the inboard regional visible region that forms of shading limit.
2. The organic light-emitting display panel according to claim 1, wherein the polarizer comprises a linear polarizer and a phase difference plate, and the phase difference plate is a quarter-wave plate.
3. The organic light-emitting display panel according to claim 2, wherein the linear polarizer comprises a TAC film and a PVA film which are stacked.
4. The organic light-emitting display panel according to any one of claims 1 to 3, further comprising a cover glass, wherein the cover glass is attached to the polarizer by an optical adhesive.
5. The organic light-emitting display screen of claim 4, wherein the cover glass is disposed on a side of the polarizer facing away from the display panel.
6. The organic light-emitting display panel according to claim 4, wherein the cover glass is provided between the polarizer and the display panel.
7. A preparation method of an organic light-emitting display screen is characterized by comprising the following steps:
s1, providing a display panel, a polaroid and a shading material, wherein the area of the polaroid is larger than that of the display panel;
s2, covering a shading material on the edge of the polaroid to form a circle of shading edge on the edge of the polaroid;
s3, positioning and assembling the polaroid to enable the edge of the display panel to be completely covered by the shading edge;
and S4, after the polaroid is assembled, cutting the edge of the polaroid to enable the edge of the polaroid to be flush with the edge of the display panel.
8. The method of claim 7, wherein the light shielding edge is disposed on one or both sides of the polarizer.
9. The method for manufacturing an organic light-emitting display screen according to claim 7, wherein the polarizer is attached to the display panel by an optical adhesive.
10. The method for manufacturing an organic light-emitting display screen according to claim 7, wherein the light-shielding material is coated on the edge of the polarizer by a spraying or evaporation process.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011337795.7A CN112750961A (en) | 2020-11-25 | 2020-11-25 | Organic light-emitting display screen and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011337795.7A CN112750961A (en) | 2020-11-25 | 2020-11-25 | Organic light-emitting display screen and preparation method thereof |
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| CN202011337795.7A Pending CN112750961A (en) | 2020-11-25 | 2020-11-25 | Organic light-emitting display screen and preparation method thereof |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103513318A (en) * | 2012-06-20 | 2014-01-15 | 三星显示有限公司 | Polarization structure, method of manufacturing polarization structure and display device including polarization structure |
| CN206209667U (en) * | 2016-11-16 | 2017-05-31 | 信利光电股份有限公司 | A kind of touching display screen |
| CN206209666U (en) * | 2016-11-16 | 2017-05-31 | 信利光电股份有限公司 | A kind of touching display screen |
| CN109782385A (en) * | 2019-03-27 | 2019-05-21 | 京东方科技集团股份有限公司 | Polaroid and preparation method thereof, display panel, display device |
| CN109860256A (en) * | 2019-02-21 | 2019-06-07 | 深圳市华星光电半导体显示技术有限公司 | A kind of AMOLED display device and preparation method thereof |
| CN111766732A (en) * | 2020-07-30 | 2020-10-13 | 京东方科技集团股份有限公司 | Display panel, manufacturing method thereof and display device |
-
2020
- 2020-11-25 CN CN202011337795.7A patent/CN112750961A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103513318A (en) * | 2012-06-20 | 2014-01-15 | 三星显示有限公司 | Polarization structure, method of manufacturing polarization structure and display device including polarization structure |
| CN206209667U (en) * | 2016-11-16 | 2017-05-31 | 信利光电股份有限公司 | A kind of touching display screen |
| CN206209666U (en) * | 2016-11-16 | 2017-05-31 | 信利光电股份有限公司 | A kind of touching display screen |
| CN109860256A (en) * | 2019-02-21 | 2019-06-07 | 深圳市华星光电半导体显示技术有限公司 | A kind of AMOLED display device and preparation method thereof |
| CN109782385A (en) * | 2019-03-27 | 2019-05-21 | 京东方科技集团股份有限公司 | Polaroid and preparation method thereof, display panel, display device |
| CN111766732A (en) * | 2020-07-30 | 2020-10-13 | 京东方科技集团股份有限公司 | Display panel, manufacturing method thereof and display device |
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