CN111402729A - Flexible display panel and preparation method thereof - Google Patents
Flexible display panel and preparation method thereof Download PDFInfo
- Publication number
- CN111402729A CN111402729A CN202010217576.9A CN202010217576A CN111402729A CN 111402729 A CN111402729 A CN 111402729A CN 202010217576 A CN202010217576 A CN 202010217576A CN 111402729 A CN111402729 A CN 111402729A
- Authority
- CN
- China
- Prior art keywords
- display panel
- flexible
- flexible display
- groove
- folding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- 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
Abstract
The invention provides a flexible display panel and a preparation method thereof, wherein the flexible display panel comprises a display function area and a folding area, the display function area is provided with at least two display units, the folding area is provided with a substrate and at least one groove or/and at least one bulge positioned on the substrate, the groove or/and the bulge is positioned between two adjacent display units, when in folding, the groove is internally folded, and the bulge is externally folded; through setting up recess and arch, reach the interior folding and the outer purpose of folding going on simultaneously, reduce the area after folding from the at utmost.
Description
Technical Field
The invention relates to the technical field of display, in particular to a flexible display panel and a preparation method of the flexible display panel.
Background
With the continuous development of information technology, display devices are developing to be thinner and larger in size, so that flexible display panels become mainstream in future display markets, and at present, in order to achieve better visual effect, the display panels of mobile devices are becoming larger in size. However, in the aspect of carrying, too big screen is unfavorable for going on a journey or using outside, and to most of flexible display products at present, mainly adopt the folding mode of interior bending type or outer bending type to reduce the panel area, but flexible display panel membrane layer thickness is great, and be not convenient for fold, consequently through the folding mode of solitary interior bending type or outer bending type, it is difficult to reduce the area after folding from the at utmost, and is inconvenient to carry, when reducing the panel area, also can't obtain bigger expansion area.
The technical problem that the existing flexible display panel is large in area after being folded and inconvenient to carry is solved.
Disclosure of Invention
The invention provides a flexible display panel, which can be effectively folded to obtain a larger unfolding area and is convenient to carry, so that the technical problem that the existing flexible display panel is large in area and inconvenient to carry after being folded is solved.
In order to solve the above problems, the technical scheme provided by the invention is as follows:
an embodiment of the present invention provides a flexible display panel, which includes:
the display function area is provided with at least two display units;
the folding area is provided with a substrate and at least one groove or/and at least one protrusion positioned on the substrate, and the groove or/and the protrusion are positioned between two adjacent display units;
when the flexible display panel is folded, the flexible display panel is folded along the inner part of the groove or/and folded along the outer part of the protrusion to form a laminated structure with the area equal to that of the display unit.
In the flexible display panel, any fold line cross point is connected with three folding valleys and one folding peak, or any fold line cross point is connected with three folding peaks and one folding valley.
In the flexible display panel of the present invention, the height of the protrusion is greater than the height of the light emitting functional layer.
In the flexible display panel of the invention, the protrusion further comprises at least one concave hole, and the concave hole is positioned on the bottom surface of one side of the protrusion close to the substrate.
In the flexible display panel, the protrusion comprises at least three concave holes, the concave holes are through holes, and the distance between every two adjacent concave holes is equal.
In the flexible display panel of the invention, the depth of the concave hole is smaller than the thickness of the bulge.
In the flexible display panel of the invention, the display units are parallelogram, and the shapes and the side lengths of the plurality of display units are equal.
In the flexible display panel of the invention, the groove is filled with the organic flexible material.
In the flexible display panel of the invention, the width of the groove is any value between 15 micrometers and 20 micrometers.
The embodiment of the invention also provides a preparation method of the flexible display panel, which comprises the following steps:
providing a substrate;
forming a flexible layer on the substrate, dividing the flexible layer into a plurality of flexible units through patterning treatment, and arranging a groove or a bulge between every two adjacent flexible units;
forming a driving circuit layer and a light emitting functional layer on the flexible unit;
separating the substrate from the flexible layer.
The invention has the beneficial effects that: the invention provides a flexible display panel and a preparation method, the flexible display panel comprises a display function area and a folding area, the display function area is provided with at least two display units, the folding area is provided with a substrate and at least one groove or/and at least one bulge positioned on the substrate, the groove or/and the bulge is positioned between two adjacent display units, when the flexible display panel is folded, the flexible display panel is folded along the groove or/and the bulge to form a laminated structure with the same area as the display units; through setting up recess and arch, it is more convenient to fold, folds in the recess, folds outside the arch, through adopting interior folding and outer folding mode simultaneously, reduces the area after folding from the at utmost, conveniently carries, can obtain bigger expansion area simultaneously.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a first schematic top view cross-section of a flexible display panel according to the present invention;
FIG. 2 is a first side cross-sectional view of a flexible display panel according to the present invention;
FIG. 3 is a second side cross-sectional view of a flexible display panel according to the present invention;
FIG. 4 is a schematic third side cross-sectional view of a flexible display panel according to the present invention;
fig. 5 is a schematic cross-sectional view of a fourth side of a flexible display panel according to the present invention;
FIG. 6 is a second schematic top view cross-section of a flexible display panel according to the present invention;
FIG. 7 is a schematic cross-sectional side view of a flexible display panel according to a fifth embodiment of the present invention;
FIG. 8 is a schematic flow chart of a method for manufacturing a flexible display panel according to the present invention;
fig. 9 is a schematic view illustrating a folding process of the flexible display panel according to the present invention.
Detailed Description
The following description of the various embodiments refers to the accompanying drawings that illustrate specific embodiments in which the invention may be practiced. The directional terms mentioned in the present invention, such as [ upper ], [ lower ], [ front ], [ rear ], [ left ], [ right ], [ inner ], [ outer ], [ side ], are only referring to the directions of the attached drawings. Accordingly, the directional terms used are used for explanation and understanding of the present invention, and are not used for limiting the present invention. In the drawings, elements having similar structures are denoted by the same reference numerals.
Aiming at the technical problem that the existing flexible display panel is large in area after being folded and inconvenient to carry, the embodiment of the invention can solve the problem.
The display function region 10 is composed of all the display units 101, the number of the display units 101 is determined by the area after folding, the area before folding, the shape of the display unit 101 and the size of the display unit 101, the folding region 20 is provided with a groove 201 and a protrusion 202, and the folding region is not provided with a driving circuit layer and a light emitting function layer and does not participate in image display.
As shown in fig. 1 and fig. 2, the flexible display panel provided by the present invention includes a display function region 10 and a folding region 20, the display function region 10 is provided with at least two display units 101, the folding region 20 is provided with a substrate and at least one groove 201 or/and at least one protrusion 202 on the substrate, the groove 201 or/and the protrusion 202 is located between two adjacent display units 101, wherein when the flexible display panel is folded, the flexible display panel is folded along the groove 201 or/and folded along the protrusion 202 to form a stacked structure with an area equal to that of the display unit 101.
In this embodiment, the flexible display panel includes a display function region 10 and a folding region 20, the display function region 10 is provided with at least two display units 101, the folding region 20 is provided with a substrate and at least one groove 201 or/and at least one protrusion 202 located on the substrate, the groove 201 or/and the protrusion 202 is located between two adjacent display units 101, wherein when the flexible display panel is folded, the flexible display panel is folded along the groove 201 inward or/and along the protrusion 202 outward to form a stacked structure with an area equal to that of the display unit 101; through setting up recess 201 and arch 202, it is more convenient to fold, folds in recess 201 department, folds outside arch 202 department, through adopting interior folding and outer folding mode simultaneously, reduces the area after folding from the at utmost, conveniently carries, can obtain bigger expansion area simultaneously.
In one embodiment, any one of the fold line intersections connects three troughs and one crest, or any one of the fold line intersections connects three troughs and one trough.
In one embodiment, the height of the protrusions 202 is greater than the height of the light-emitting functional layer.
In one embodiment, the protrusion 202 further includes at least one recess 2001, and the recess 2001 is located on a bottom surface of the protrusion 202 near one side of the substrate.
In one embodiment, the protrusion 202 includes at least three concave holes 2001, the concave holes 2001 are through holes, and the distance between two adjacent concave holes 2001 is equal.
In one embodiment, the depth of the recess 2001 is less than the thickness of the protrusion 202.
In one embodiment, the width of the groove 201 is anywhere between 15 microns and 20 microns.
In one embodiment, the display unit 101 is a parallelogram, and the shapes and the side lengths of a plurality of the display units 101 are equal.
In one embodiment, the groove 201 is filled with an organic flexible material.
The technical solution of the present application will be described with reference to the following embodiments
Example one
Please refer to fig. 1 and fig. 2;
the flexible display panel provided by the embodiment includes a display function region 10 and a folding region 20, the display function region 10 is provided with at least two display units 101, the folding region 20 is provided with a substrate and at least one groove 201 or/and at least one protrusion 202 on the substrate, the groove 201 or/and the protrusion 202 is located between two adjacent display units 101, wherein when the flexible display panel is folded, the flexible display panel is folded along the groove 201 or/and folded along the protrusion 202 to form a laminated structure with an area equal to that of the display unit 101.
In this embodiment, the arrangement of the groove 201 and the protrusion 202 is related to the folding manner.
In this embodiment, three folding valleys and one folding peak are connected by any cross point of the folding line, or three folding peaks and one folding valley are connected by any cross point of the folding line, so that the positions of the groove 201 and the protrusion 202, the inner folding at the groove 201, and the outer folding at the protrusion 202 can be determined.
In this embodiment, the display unit 101 is a parallelogram.
The present embodiment further defines the shape of the display unit 101, and the shape of the display unit 101 is a parallelogram, including a rectangle, a trapezoid, and the like.
In this embodiment, the display units 101 are the same-shaped and same-sized display units 101.
This embodiment is through the restriction to display element 101 shape, and more close to the product, the cell-phone in the production is the parallelogram-like shape such as rectangle mostly, and after folding, the display element 101 of the same size, shape can be totally overlapped together, portable.
In this embodiment, the groove 201 is filled with a flexible material.
In this embodiment, when encapsulating the display panel, the organic flexible layer is deposited and filled in the groove 201, so that the surface of the panel is flatter, and meanwhile, the effect of reducing bending stress is also achieved, so that the product is safer and more reliable.
In this embodiment, a hardened layer is coated outside the encapsulation layer.
In this embodiment, the groove 201 is filled with the flexible material, so that the surface of the panel is flatter and the effect of reducing the bending stress applied to the groove 201 is also achieved.
Example two
Please refer to fig. 3, fig. 4, and fig. 5;
in the present embodiment, the height of the projection 202 and the height of the light emitting function layer have a corresponding positional relationship.
In one embodiment, the height of the protrusion 202 is greater than that of the light-emitting functional layer, which has low requirements on process level and is easy to implement.
In one embodiment, the height of the protrusions 202 is equal to the height of the light emitting functional layer.
In one embodiment, the height of the protrusions 202 is less than the height of the light emitting functional layer.
In the present embodiment, the height of the protrusions 202 is greater than the height of the light emitting function layer, which is more easily achieved by process means.
EXAMPLE III
Please refer to fig. 6 and 7;
in this embodiment, the protrusion 202 further includes at least one recess 2001, and the recess 2001 is located on a bottom surface of the protrusion 202 near the substrate.
In this embodiment, the concave hole 2001 is a through hole.
In this embodiment, the concave hole 2001 is not a through hole, and the thickness of the concave hole 2001 is smaller than that of the protrusion 202.
This embodiment reduces the stress that receives when protruding 202 is outer folding through set up the through-hole in protruding 202 bottom, and it is more laborsaving to fold simultaneously.
As shown in fig. 8, the present invention further provides a method for manufacturing a flexible display panel, including:
s1, providing a substrate;
s2, forming a flexible layer on the substrate, dividing the flexible layer into a plurality of flexible units through patterning treatment, and arranging a groove 201 or a bulge 202 between every two adjacent flexible units;
s3, forming a driving circuit layer and a light-emitting functional layer on the flexible unit;
and S4, separating the substrate from the flexible layer.
In one embodiment, the step of patterning traces and bumps 202 on the ultra-thin flexible substrate further comprises: depositing a whole metal layer on the ultrathin flexible substrate, patterning the metal layer to form a wire, and depositing a mask plate to form the bump 202 in the pre-marked bump 202 area.
In one embodiment, the method for manufacturing a flexible display panel further includes: in the corresponding area of the folding area 20, a pre-folding mark is formed by a hot embossing technology, and the position of the valley is marked by the pre-folding mark.
In one embodiment, the folding region 20 is not provided with a light emitting function layer and a driving circuit layer, and the folding region 20 is not shown and is used only for panel folding
In one embodiment, after the light emitting functional layer is formed, pre-folding lines are formed through a hot stamping process, so that folding is facilitated.
In one embodiment, the pre-crease is formed by a hot stamping process, the width of the groove 201 is any value between 15 micrometers and 20 micrometers, the width of the groove 201 is determined by collecting and counting a large amount of data, and after the panel is folded, the width of the formed crease, namely the groove 201, is 15 micrometers to 20 micrometers.
In one embodiment, by the arrangement of the pre-folding lines, the flexible display panel can be folded along the pre-folding lines when being folded, so that subsequent folding is facilitated.
In one embodiment, three troughs and one crest are connected by any one of the fold line intersections.
In one embodiment, three folds and one valley are connected by any fold intersection.
In one embodiment, the flexible display panel is folded by a folding method of three-pump folding, and the inner folding and the outer folding are alternated.
As shown in fig. 9, the present embodiment adopts the triple-pu folding method, and folds the display panel inwards at the groove 201 and outwards at the protrusion 202, so as to achieve the purpose of multiple folding, and obtain the maximum unfolding area, thereby really realizing a large-area display panel capable of being placed in a pocket.
According to the above embodiments:
the invention provides a flexible display panel and a preparation method thereof, wherein the flexible display panel comprises a display function region and a folding region, the display function region is provided with at least two display units, the folding region is provided with a substrate and at least one groove or/and at least one bulge positioned on the substrate, the groove or/and the bulge is positioned between two adjacent display units, when the flexible display panel is folded, the flexible display panel is folded along the groove inside or/and the bulge outside to form a laminated structure with the same area as the display units; through setting up recess and arch, it is more convenient to fold, folds in the recess, folds outside the arch, through adopting interior folding and outer folding mode simultaneously, reduces the area after folding from the at utmost, conveniently carries, can obtain bigger expansion area simultaneously.
In summary, although the preferred embodiments of the present invention have been described above, the above-described preferred embodiments are not intended to limit the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, therefore, the scope of the present invention shall be determined by the appended claims.
Claims (10)
1. A flexible display panel, comprising:
the display function area is provided with at least two display units;
the folding area is provided with a substrate and at least one groove or/and at least one protrusion positioned on the substrate, and the groove or/and the protrusion are positioned between two adjacent display units;
when the flexible display panel is folded, the flexible display panel is folded along the inner part of the groove or/and folded along the outer part of the protrusion to form a laminated structure with the area equal to that of the display unit.
2. The flexible display panel of claim 1, wherein any one of the fold line intersections connects three troughs and one crest, or any one of the fold line intersections connects three troughs and one trough.
3. The flexible display panel of claim 2, wherein the protrusions are larger than a height of the light-emitting functional layer.
4. The flexible display panel of claim 2, wherein the bump further comprises at least one recess located on a bottom surface of the bump on a side thereof adjacent to the substrate.
5. The flexible display panel of claim 4, wherein the protrusion comprises at least three concave holes, the concave holes are through holes, and the distance between two adjacent concave holes is equal.
6. The flexible display panel of claim 4, wherein the recessed holes have a depth less than a thickness of the protrusions.
7. The flexible display panel according to claim 2, wherein the display unit is a parallelogram, and the shape and the side length of the plurality of display units are equal.
8. The flexible display panel of claim 2, wherein the groove is filled with an organic flexible material.
9. The flexible display panel of claim 2, wherein the width of the groove is any value between 15 microns and 20 microns.
10. A method for manufacturing a flexible display panel is characterized by comprising the following steps:
providing a substrate;
forming a flexible layer on the substrate, dividing the flexible layer into a plurality of flexible units through patterning treatment, and arranging a groove or a bulge between every two adjacent flexible units;
forming a driving circuit layer and a light emitting functional layer on the flexible unit;
separating the substrate from the flexible layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010217576.9A CN111402729A (en) | 2020-03-25 | 2020-03-25 | Flexible display panel and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010217576.9A CN111402729A (en) | 2020-03-25 | 2020-03-25 | Flexible display panel and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111402729A true CN111402729A (en) | 2020-07-10 |
Family
ID=71413514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010217576.9A Pending CN111402729A (en) | 2020-03-25 | 2020-03-25 | Flexible display panel and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111402729A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115376411B (en) * | 2022-08-03 | 2023-06-27 | 武汉华星光电半导体显示技术有限公司 | Folding display device |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104867406A (en) * | 2015-04-08 | 2015-08-26 | 京东方科技集团股份有限公司 | Flexible panel, display device and wearable device |
| KR20170026908A (en) * | 2015-08-31 | 2017-03-09 | 삼성디스플레이 주식회사 | Flexible display apparatus |
| CN106601133A (en) * | 2017-02-28 | 2017-04-26 | 京东方科技集团股份有限公司 | Flexible display panel, making method thereof and display device |
| CN107482046A (en) * | 2017-08-25 | 2017-12-15 | 京东方科技集团股份有限公司 | Display base plate and preparation method thereof and display device |
| CN108428731A (en) * | 2018-05-17 | 2018-08-21 | 武汉华星光电半导体显示技术有限公司 | Flexible OLED display panel and flexible OLED display |
| CN109448554A (en) * | 2018-12-03 | 2019-03-08 | 武汉华星光电半导体显示技术有限公司 | Flexible display panels and preparation method thereof |
| CN110199341A (en) * | 2017-01-24 | 2019-09-03 | 夏普株式会社 | Flexible display |
| US20190293921A1 (en) * | 2013-11-28 | 2019-09-26 | Samsung Display Co., Ltd. | Flexible display device |
| CN110570764A (en) * | 2019-08-23 | 2019-12-13 | 武汉华星光电半导体显示技术有限公司 | display panel and manufacturing method thereof |
| CN110827684A (en) * | 2019-10-24 | 2020-02-21 | 武汉华星光电半导体显示技术有限公司 | Flexible display panel and display device |
-
2020
- 2020-03-25 CN CN202010217576.9A patent/CN111402729A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20190293921A1 (en) * | 2013-11-28 | 2019-09-26 | Samsung Display Co., Ltd. | Flexible display device |
| CN104867406A (en) * | 2015-04-08 | 2015-08-26 | 京东方科技集团股份有限公司 | Flexible panel, display device and wearable device |
| KR20170026908A (en) * | 2015-08-31 | 2017-03-09 | 삼성디스플레이 주식회사 | Flexible display apparatus |
| CN110199341A (en) * | 2017-01-24 | 2019-09-03 | 夏普株式会社 | Flexible display |
| CN106601133A (en) * | 2017-02-28 | 2017-04-26 | 京东方科技集团股份有限公司 | Flexible display panel, making method thereof and display device |
| CN107482046A (en) * | 2017-08-25 | 2017-12-15 | 京东方科技集团股份有限公司 | Display base plate and preparation method thereof and display device |
| CN108428731A (en) * | 2018-05-17 | 2018-08-21 | 武汉华星光电半导体显示技术有限公司 | Flexible OLED display panel and flexible OLED display |
| CN109448554A (en) * | 2018-12-03 | 2019-03-08 | 武汉华星光电半导体显示技术有限公司 | Flexible display panels and preparation method thereof |
| CN110570764A (en) * | 2019-08-23 | 2019-12-13 | 武汉华星光电半导体显示技术有限公司 | display panel and manufacturing method thereof |
| CN110827684A (en) * | 2019-10-24 | 2020-02-21 | 武汉华星光电半导体显示技术有限公司 | Flexible display panel and display device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115376411B (en) * | 2022-08-03 | 2023-06-27 | 武汉华星光电半导体显示技术有限公司 | Folding display device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20190286264A1 (en) | Touch panel and touch display device | |
| CN109272874B (en) | Display device and manufacturing method thereof | |
| EP3244385B1 (en) | Display substrate, display panel, and display device | |
| US20210074897A1 (en) | Display device | |
| US20180217704A1 (en) | Touch window and touch device including the same | |
| US9229555B2 (en) | Touch screen panel and method of manufacturing the same | |
| CN104332132B (en) | Display panel and display device | |
| WO2021169620A1 (en) | Display panel and producing method therefor, and display device | |
| CN110297342B (en) | Display panel and display device | |
| US11828914B2 (en) | Optical adhesive layer, stretchable display device and preparing method for optical adhesive layer | |
| CN110018595B (en) | Display panel and display device | |
| WO2020118982A1 (en) | Narrow-bezel touch display | |
| CN113778267B (en) | Display panel and display device | |
| CN210112367U (en) | Chip on film substrate, circuit board and display device | |
| WO2019127786A1 (en) | Flexible display panel and chip on film structure thereof | |
| CN113284930B (en) | Supporting member, display module and display device | |
| CN111402729A (en) | Flexible display panel and preparation method thereof | |
| CN114613789B (en) | Array substrate, manufacturing method of array substrate, display panel and display device | |
| CN110687728B (en) | Display module and terminal equipment | |
| JP2011022931A (en) | Input device and method for manufacturing the same | |
| US11563036B2 (en) | Array substrate and fabrication method thereof, display panel and display module | |
| CN113488497A (en) | Display panel, preparation method thereof and display device | |
| CN113257132A (en) | Slippage display device | |
| WO2022062137A1 (en) | Touch display screen and display device thereof | |
| CN212433739U (en) | Touch panel and touch display screen |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200710 |