CN109473045A - A kind of optical cement, its manufacturing method and its flexible display screen - Google Patents
A kind of optical cement, its manufacturing method and its flexible display screen Download PDFInfo
- Publication number
- CN109473045A CN109473045A CN201811543583.7A CN201811543583A CN109473045A CN 109473045 A CN109473045 A CN 109473045A CN 201811543583 A CN201811543583 A CN 201811543583A CN 109473045 A CN109473045 A CN 109473045A
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- China
- Prior art keywords
- optical cement
- area
- section
- support column
- oca glue
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/301—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The embodiment of the invention discloses a kind of optical cement, its manufacturing method and its flexible display screens.Optical cement includes the first section and the second section that the first section two sides are arranged in, and the first section includes OCA glue-line, and the second section includes OCA glue-line and the support column that is arranged in OCA glue-line.The manufacturing method of optical cement is comprising steps of the second area that the substrate surface provided one defines first area and is located at its two sides；In preparing support column in the substrate of second area；In coating OCA glue in the substrate in first area and second area.Flexible display screen includes above-mentioned optical cement.It is internally embedded a kind of support column by the non-bending region in flexible display screen, enhances its normal stiffness, and then promote the hardness of flexible display screen, flexible display screen can be made to pass through pencil hardness and nano-indenter test；Routine OCA glue is used in bending region, it is not enhanced, to not only can guarantee the high hardness in non-bending region, but also can guarantee it in the bending good bending in region.
Description
Technical field
The present invention relates to field of display technology, in particular to a kind of optical cement, its manufacturing method and its flexible display screen.
Background technique
In recent years, OLED (Organic Light Emitting Display, organic light emitting diode display) is shown
Technology is just gradually popularized in mobile phone with TV market, and yields, which has, to be substantially improved, the status of next-generation display technology without
It can shake, and the Flexible Displays based on OLED are then an important R&D directions of the following display technology.The each film of flexible screen
Interlayer is bonded frequently with OCA glue (Optically Clear Adhesive, optical cement), since glue material modulus is lower,
Sticky rheology easily occurs under the action of external load, reduces the hardness of flexible screen, while for the bending of flexible screen,
Wish that there is lower modulus, good mobility in the optical cement in bending region, to improve bending resistance.Therefore, using biography
Although the flexible screen for support column of uniting can cross bending test, often it is difficult to through nano impress or pencil hardness test.
Therefore, it is necessory to develop a kind of optical cement, its manufacturing method and its flexible display screen, to overcome the prior art
The defects of.
Summary of the invention
One embodiment of the present of invention proposes a kind of optical cement, is used to be coated on the substrate of flexible display screen, with
Enhance the non-bending field method of flexible display screen to rigidity, and then promote the hardness of flexible display screen, flexible display screen can be made to pass through
Pencil hardness and nano-indenter test；Its hardness is not enhanced in bending region simultaneously good in bending region to guarantee
Bending.
To achieve the goals above, present invention employs the following technical solutions:
Including the first section and the second section of first section two sides, firstth area is arranged in a kind of optical cement
Section includes OCA glue-line, and second section includes OCA glue-line and the support column that is arranged in OCA glue-line.
Further, wherein the elasticity modulus of the support column is 50~250Gpa.
Further, wherein the transmitance of the support column is greater than 92%；And/or refractive index is 1.47~1.48；With/
Or, mist degree is less than 0.5%.
Further, wherein the support column includes 2 or more quantity, these support columns are uniformly distributed in described vertically
In the OCA glue-line of second section.
Further, wherein the width of the support column is less than 10 microns, the height of the support column is equal to OCA where it
The height of glue-line.
Further, wherein the support column be prismatic column structure, the column structure be cylinder, triangular prism,
Any of or a combination of quadrangular, pentagonal prism, hexagonal prisms.
Further, wherein the material of the support column includes metal oxide, ceramic material or transparent metal electrode material
Any one of material.
Another embodiment of the present invention proposes a kind of manufacturing method for preparing the optical cement of the present invention, wherein
The preparation method comprises the following steps:
In the second area that the substrate surface that one provides defines first area and is located at the first area two sides；
In preparing support column in the substrate of the second area；
In being coated with OCA glue in the substrate in the first area and second area, the OCA glue is in firstth area
Domain forms first section, the OCA glue and the support column and forms second section in the second area.
Further, wherein the preparation method of the support column includes inkjet printing, chemical vapor deposition or vacuum splashing and plating
One of.
Another embodiment of the present invention proposes a kind of flexible display screen, includes bent area and setting in the bending
The non-bent area of area two sides.Wherein the flexible display screen includes multiple function layers and is arranged between the adjacent functional layer
Optical cement, the optical cement include the first section and the second section that first section two sides are arranged in, first section
Including OCA glue-line, second section includes OCA glue-line and the support column that is arranged in OCA glue-line, first section and institute
It is corresponding to state bent area, second section is correspondingly arranged with the non-bent area.
The present invention proposes a kind of optical cement, its manufacturing method and its flexible display screen, in the non-bent area of flexible display screen
Domain is internally embedded a kind of support column, enhances its normal stiffness, and then promote the hardness of flexible display screen, and flexible display screen can be made logical
Cross pencil hardness and nano-indenter test；In bending region using conventional OCA glue, it is not enhanced, to can protect
The flexible flexible display screen hardness high in non-bending region is demonstrate,proved, and can guarantee it in the bending good bending in region.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the optical cement of one embodiment of the present invention；
Fig. 2 is the schematic cross-section of the optical cement of one embodiment of the present invention
Fig. 3 is the structural schematic diagram of the support column of one embodiment of the present invention；
Fig. 4 is the manufacturing flow chart of the optical cement of one embodiment of the present invention；
Fig. 5 is the structural schematic diagram of the optical cement of one embodiment of the present invention being manufactured in substrate；
Fig. 6 is the schematic cross-section of the flexible display screen of one embodiment of the present invention；
Fig. 7 is the bending structure schematic diagram of the flexible display screen of one embodiment of the present invention.
Component mark is as follows in figure:
1 bent area, 2 non-bent areas, 3 first sections, 4 second sections,
10 optical cements, 11 support columns, 12OCA glue-line, 13 functional layers,
111 cylinders, 112 triangular prisms, 113 quadrangulars, 114 pentagonal prisms, 115 hexagonal prisms,
20 substrates, 21 first areas, 22 second areas.
Specific embodiment
The explanation of following embodiment is referred to the additional illustration, the particular implementation that can be used to implement to illustrate the present invention
Example.The direction term that the present invention is previously mentioned, such as [on], [under], [preceding], [rear], [left side], [right side], [interior], [outer], [side]
Deng being only the direction with reference to annexed drawings.Therefore, the direction term used be to illustrate and understand the present invention, rather than to
The limitation present invention.
Refering to Figure 1, proposing a kind of optical cement 10, including the first section 3 and setting in one embodiment of the invention
The second section 4 in 3 two sides of the first section, first section 3 include OCA glue-line 12, and second section 4 includes
OCA glue-line 12 and the support column 11 being arranged in OCA glue-line 12.
Wherein the elasticity modulus of the support column 11 be the elasticity modulus of support column 11 described in 50~250GPa be 50~
250GPa；And/or transmitance is greater than 92%；And/or refractive index is 1.47~1.48；And/or mist degree is less than 0.5%.
Wherein presence of first section 3 due to support column 11, hardness of the hardness less than second section 4.
It please refers to shown in Fig. 2, the support column 11 includes 2 or more quantity, these support columns 11 are uniformly distributed vertically
In in the OCA glue-line 12 of second section 4.
Wherein for the width of the support column 11 less than 10 microns, the height of the support column 11 is equal to the OCA glue-line 12
Height.
It please refers to shown in Fig. 3, the support column 11 is prismatic column structure, and column structure is preferably cylinder 111, three
Any of or a combination of prism 112, quadrangular 113, pentagonal prism 114, hexagonal prisms 115.
Wherein the material of the support column 11 includes appointing in metal oxide, ceramic material or transparent metal electrode material
It is a kind of.
It please refers to shown in Fig. 4, Fig. 5, in the second embodiment of the present invention, proposes a kind of manufacturing method of optical cement 10, institute
State method the following steps are included:
S10,20 surface of substrate provided one define first area 21 and are located at 21 two sides of first area
Second area 22；
Support column is prepared in the substrate of S20, Yu Suoshu second area 22；
OCA glue is coated in the substrate 20 in the first area S30, Yu Suoshu 21 and second area 22, the OCA glue exists
The first area 21 formed first section 3, the OCA glue and the support column formed in the second area 22 it is described
Second section 4.
Wherein the preparation method for preparing support column 11 includes in inkjet printing, chemical vapor deposition or vacuum splashing and plating
One kind.
It please refers to shown in Fig. 6, Fig. 7, in the third embodiment of the present invention, proposes a kind of flexible display screen, include bending
Area 1 and the non-bent area 2 that 1 two sides of bent area are arranged in, the flexible display screen include multiple function layers 13 and setting
Optical cement 10 between the adjacent functional layer 13, wherein the optical cement is above-mentioned optical cement 10, the optical cement 10
Including the first section 3 and the second section 4 of 3 two sides of the first section is set, first section 3 includes OCA glue-line 12,
Second section 4 includes OCA glue-line 12 and the support column 11 that is arranged in OCA glue-line 12, first section 3 with it is described curved
Folding area 1 is corresponding, and second section 4 is correspondingly arranged with the non-bent area 2.
In the non-bent area 2 of flexible display screen by the deformation under external pressure effect, since support column 11 has
Higher rigidity, the second section 4 provide preferable supporting role, sagging depth drop caused by external load in normal direction
Low, the performance that flexible display screen resists external load gets a promotion, and guarantees that flexible overlapping structure can pass through pencil hardness
And nano-indenter test；It is glued simultaneously in flexible display screen bent area 1 using the first section 3 for being not filled with rigid support column 11
Elasticity is good, and the stress being subject in bending is small, had both improved the hardness of non-bent area 2 in this way, and had in turn ensured the bending resistance of bent area 1
Folding endurance.
The present invention proposes a kind of optical cement, its manufacturing method and its flexible display screen, in the non-bent area of flexible display screen
Domain is internally embedded a kind of support column, enhances its normal stiffness, and then promote the hardness of flexible display screen, and flexible display screen can be made logical
Cross pencil hardness and nano-indenter test；In bending region using conventional OCA glue, it is not enhanced, to can protect
The flexible flexible display screen hardness high in non-bending region is demonstrate,proved, and can guarantee it in the bending good bending in region.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
Member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications also should be regarded as
Protection scope of the present invention.
Claims (10)
1. a kind of optical cement, which is characterized in that including the first section and be arranged in the second section of first section two sides, institute
Stating the first section includes OCA glue-line, and second section includes OCA glue-line and the support column that is arranged in OCA glue-line.
2. optical cement according to claim 1, which is characterized in that the elasticity modulus of the support column is 50~250Gpa.
3. optical cement according to claim 1, which is characterized in that the transmitance of the support column is greater than 92%；And/or
Refractive index is 1.47~1.48；And/or mist degree is less than 0.5%.
4. optical cement according to claim 1, which is characterized in that the support column includes 2 or more quantity, these branch
Dagger is uniformly distributed in vertically in the OCA glue-line of second section.
5. flexible display screen according to claim 1, which is characterized in that the width of the support column is less than 10 microns.
6. optical cement according to claim 1, which is characterized in that the support column is prismatic column structure.
7. optical cement according to claim 1, which is characterized in that the material of the support column includes metal oxide, pottery
Any one of ceramic material or transparent metal electrode material.
8. a kind of manufacturing method for preparing optical cement according to claim 1, which comprises the following steps:
In the second area that the substrate surface that one provides defines first area and is located at the first area two sides；
In preparing support column in the substrate of the second area；
In being coated with OCA glue in the substrate in the first area and second area, the OCA glue is in the first area shape
At first section, the OCA glue and the support column form second section in the second area.
9. the manufacturing method of optical cement according to claim 6, which is characterized in that the preparation method of the support column includes
One of inkjet printing, chemical vapor deposition or vacuum splashing and plating.
10. a kind of flexible display screen includes bent area and the non-bent area that the bent area two sides are arranged in, the flexibility
Display screen includes multiple function layers and the optical cement that is arranged between the adjacent functional layer, which is characterized in that the wherein light
Learn glue be according to optical cement described in claim 1, it is described wherein the first section of the optical cement is corresponding with the bent area
Second section of optical cement is correspondingly arranged with the non-bent area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811543583.7A CN109473045A (en) | 2018-12-17 | 2018-12-17 | A kind of optical cement, its manufacturing method and its flexible display screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811543583.7A CN109473045A (en) | 2018-12-17 | 2018-12-17 | A kind of optical cement, its manufacturing method and its flexible display screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109473045A true CN109473045A (en) | 2019-03-15 |
Family
ID=65676210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811543583.7A Pending CN109473045A (en) | 2018-12-17 | 2018-12-17 | A kind of optical cement, its manufacturing method and its flexible display screen |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110164310A (en) * | 2019-05-27 | 2019-08-23 | 武汉华星光电半导体显示技术有限公司 | Flexible display panels and display device |
| CN110264887A (en) * | 2019-07-01 | 2019-09-20 | 云谷（固安）科技有限公司 | A kind of flexible display screen and display device |
| CN110264888A (en) * | 2019-07-02 | 2019-09-20 | 京东方科技集团股份有限公司 | Notacoria structure, display panel and display device |
| WO2021031080A1 (en) * | 2019-08-19 | 2021-02-25 | 京东方科技集团股份有限公司 | Foldable display screen, fabrication method therefor and display device |
| CN113257133A (en) * | 2021-05-26 | 2021-08-13 | 维沃移动通信有限公司 | Flexible display screen and electronic equipment |
| CN113284930A (en) * | 2021-03-18 | 2021-08-20 | 成都京东方光电科技有限公司 | Supporting member, display module and display device |
| CN113763808A (en) * | 2020-06-05 | 2021-12-07 | 华为技术有限公司 | Flexible display cover plate, preparation method thereof and flexible display module |
| CN114038323A (en) * | 2021-11-22 | 2022-02-11 | 武汉华星光电半导体显示技术有限公司 | Display module, manufacturing method thereof and display device |
| JP2023512498A (en) * | 2020-01-20 | 2023-03-27 | 華為技術有限公司 | electronic device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110164310B (en) * | 2019-05-27 | 2022-04-26 | 武汉华星光电半导体显示技术有限公司 | Flexible display panel and display device |
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| CN113763808A (en) * | 2020-06-05 | 2021-12-07 | 华为技术有限公司 | Flexible display cover plate, preparation method thereof and flexible display module |
| CN113284930A (en) * | 2021-03-18 | 2021-08-20 | 成都京东方光电科技有限公司 | Supporting member, display module and display device |
| WO2022247724A1 (en) * | 2021-05-26 | 2022-12-01 | 维沃移动通信有限公司 | Flexible display screen and electronic device |
| CN113257133A (en) * | 2021-05-26 | 2021-08-13 | 维沃移动通信有限公司 | Flexible display screen and electronic equipment |
| CN114038323A (en) * | 2021-11-22 | 2022-02-11 | 武汉华星光电半导体显示技术有限公司 | Display module, manufacturing method thereof and display device |
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Application publication date: 20190315 |