CN109390357B - Display substrate, manufacturing method thereof and display device - Google Patents
Display substrate, manufacturing method thereof and display device Download PDFInfo
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- CN109390357B CN109390357B CN201811222102.2A CN201811222102A CN109390357B CN 109390357 B CN109390357 B CN 109390357B CN 201811222102 A CN201811222102 A CN 201811222102A CN 109390357 B CN109390357 B CN 109390357B
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- 239000000758 substrate Substances 0.000 title claims abstract description 85
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 8
- 239000000463 material Substances 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims description 17
- 230000008569 process Effects 0.000 claims description 12
- 238000000059 patterning Methods 0.000 claims description 5
- 230000009471 action Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229920002120 photoresistant polymer Polymers 0.000 description 2
- 239000004642 Polyimide Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000007641 inkjet printing Methods 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 238000000206 photolithography Methods 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
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- 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
- H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers
- H01L27/12—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body
- H01L27/1214—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs
- H01L27/1218—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs with a particular composition or structure of the substrate
-
- 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
- H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers
- H01L27/12—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body
- H01L27/1214—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs
- H01L27/1259—Multistep manufacturing methods
- H01L27/1262—Multistep manufacturing methods with a particular formation, treatment or coating of the substrate
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Electroluminescent Light Sources (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The invention provides a display substrate, a manufacturing method thereof and a display device, belongs to the technical field of display, and can at least partially solve the problem that the existing display substrate is not stretchable. The invention provides a display substrate, which comprises a substrate and a display structure formed on the substrate, wherein the substrate is provided with a plurality of openings communicated with the top surface and the bottom surface of the substrate, and the substrate is made of deformable materials.
Description
Technical Field
The invention belongs to the technical field of display, and particularly relates to a display substrate, a manufacturing method of the display substrate and a display device.
Background
With the continuous development of display technology, various forms of display devices, such as flexible display devices, have appeared. The flexible display device can be applied to the curved surface display field or the wearable display field and the like due to the characteristics of bending and folding of the flexible display device, so that the flexible display device is paid more and more attention.
However, since the display structure (such as the light emitting unit or the signal line) in the display device is difficult to be stretched and deformed, the display device is difficult to be "stretchable", which limits the application of the display device in some specific fields.
Disclosure of Invention
The invention at least partially solves the problem that the existing display substrate is not stretchable, and provides a stretchable display substrate.
The technical scheme adopted for solving the technical problem of the invention is that the display substrate comprises a substrate and a display structure formed on the substrate, wherein the substrate is provided with a plurality of openings communicating the top surface and the bottom surface of the substrate, and is made of deformable materials.
Further preferably, the substrate includes: a plurality of first portions distributed in an array; and a plurality of second parts, wherein at least two adjacent first parts are connected through at least one second part, so that the positions of the first parts, which are not connected with the second parts, form the plurality of openings.
It is further preferred that any two of the first portions adjacent to each other in the row direction are connected to each other by at least one of the second portions; in the column direction, any two adjacent first portions are connected through at least one second portion.
It is further preferable that the first portions are block-shaped, the second portions are bent strip-shaped, and when forces parallel to a connecting line between the two adjacent first portions and in opposite directions are applied to the two adjacent first portions, the second portions connecting the two first portions in the force-receiving direction can be deformed, so that a distance between the two force-receiving first portions is changed.
It is further preferred that at least two of the first portions that are at least partially adjacent are connected by two of the second portions, and that the two second portions are symmetrically distributed.
It is further preferred that the cross-sectional area of the second portion at the junction with the first portion is greater than the cross-sectional area of the remainder of the second portion.
It is further preferable that the display structure includes a light emitting unit formed on the first portion and a signal line connecting the light emitting unit formed on the second portion.
It is further preferred that the substrate is made of a memory-type deformable material.
The technical scheme adopted for solving the technical problem of the invention is a display device which comprises the display substrate.
The technical scheme adopted for solving the technical problem of the invention is a manufacturing method of the display substrate, which comprises the following steps:
forming the display structure on a base material;
and removing the part of the substrate material without the display structure by adopting a patterning process to form the opening.
Drawings
FIG. 1a is a schematic structural diagram of a substrate of a display substrate according to an embodiment of the present invention;
FIG. 1b is a schematic partial structure diagram of a display substrate according to an embodiment of the present invention;
FIG. 2a is a partial schematic view of a display substrate according to an embodiment of the present invention before a force is applied to the substrate;
FIG. 2b is an enlarged view of a portion of a substrate of a display substrate after being stressed according to an embodiment of the invention;
wherein the reference numerals are: 10 a substrate; 11 a first portion; 12 a second portion;
13 opening; 20 a light emitting unit; 30 signal lines.
Detailed Description
In order to make the technical solutions of the present invention better understood, the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
In the present invention, the "patterning process" refers to a step of forming a structure having a specific pattern, which may be a photolithography process including one or more steps of forming a material layer, coating a photoresist, exposing, developing, etching, stripping a photoresist, and the like; of course, the "patterning process" may also be an imprinting process, an inkjet printing process, or other processes.
Example 1:
as shown in fig. 1a, 1b, 2a and 2b, wherein the light emitting unit 20 and the signal line 30 are not seen in any of fig. 1a, 2a and 2 b.
The present embodiment provides a display substrate including a substrate 10, a display structure formed on the substrate 10, the substrate 10 having a plurality of openings 13 communicating a top surface and a bottom surface thereof, and the substrate 10 being made of a deformable material.
Here, the display structure refers to a structure for implementing display, which may include light emitting units 20 (i.e., sub-pixels, which may include pixel electrodes, etc.) and signal lines 30 connected to the light emitting units 20, wherein the light emitting units 20 are arranged in an array on the substrate 10, and the signal lines 30 may include gate lines connected to the light emitting units 20 in a row direction and data lines connected to the light emitting units 20 in a column direction. The light emitting unit 20 and the signal line 30 are located at a non-opening of the top surface of the substrate 10.
It should be understood that the row direction and the column direction are only two intersecting directions in the display substrate, and do not represent that the display substrate must be distributed in the transverse direction and the longitudinal direction respectively when the display substrate is used, for example, the row direction and the column direction may be both oblique when the display substrate is used.
The substrate 10 is made of a flexible and deformable material, such as organic material like polyimide, so that the substrate 10 can be deformed to some extent without being damaged. Of course, the substrate 10 may also have a certain elasticity, i.e. the material may be elastically restored to its original shape after a certain stretching deformation.
In the display substrate of this embodiment, since the opening 13 is formed, the portion of the base 10 without the opening can be deformed by the opening 13 (not the base 10 itself is "elongated"), so that the display substrate is stretchable as a whole; since the base 10 is deformed by the shape change rather than the actual "elongation", the base 10 is actually "elongated" to a much smaller extent than the "elongation" of the display substrate, and the display structure thereon is not (or only to a small extent) elongated and damaged. Therefore, the display substrate has stretchable performance so as to expand the application range of the display substrate.
Preferably, the substrate 10 includes: a plurality of first portions 11 distributed in an array; and a plurality of second portions 12, at least one second portion 12 connecting two adjacent first portions 11, so that a plurality of openings 13 are formed at positions where the second portions 12 are not connected between the first portions 11.
Wherein, if two adjacent first portions 11 are connected by a second portion 12, the first portions 11 and the second portions 12 are alternately distributed.
The plurality of first portions 11 form the entire base 10 by the connection of the plurality of second portions 12, so that the base 10 is more easily deformed when being subjected to two forces in opposite directions, thereby making the display substrate display more easily stretched.
Preferably, in the row direction, any two adjacent first portions 11 are connected by at least one second portion 12; any two adjacent first portions 11 are connected by at least one second portion 12 in the column direction.
Wherein each first portion 11, that is to say at the ends in the column direction or in the column direction, connects at least two second portions 12, and each first portion 11 at the non-ends connects at least four second portions 12.
The structure can be matched with the distribution of the gate lines and the data lines in the signal lines 30, and the tensile property of the display substrate can be better on the premise of ensuring the display property of the display substrate.
Preferably, the first portion 11 is in a block shape, such as a cylinder or a cube, and the second portion 12 is in a curved strip shape, when forces parallel to a connecting line between the two adjacent first portions 11 and in opposite directions are respectively applied to the two adjacent first portions 11, the second portion 12 connecting the two first portions 11 in the force-applying direction can be deformed, so that the distance between the two first portions 11 under force is changed.
When the display substrate is subjected to an external force in the opposite direction, the second portion 12 is relatively "thin" and is prone to stress concentration, so that the second portion 12 is mainly deformed and is "straightened" or "bent", and the first portion 11 is hardly deformed. For example, in the row direction, when the display substrate is subjected to external forces in opposite directions (e.g., F1 and F2 in fig. 2 a), the second portion 12 connecting the first portions 11 gradually changes from a curved strip shape to a straight line shape due to the external forces, so that the distance between two positions where the second portion 12 connects the first portions 11 becomes gradually larger, that is, the distance between the first portions 11 connected by the second portion 12 becomes gradually larger (e.g., a in fig. 2a and 2 b), thereby stretching the entire display substrate.
The display substrate of the present embodiment achieves its stretchability mainly by deformation of the second portion 12 in the base 10, so that the deformation in the first portion 11 is small, and thus the actual deformation can be further reduced by providing a main display structure on the first portion 11.
Preferably, two first portions 11 at least partially adjacent to each other are connected by two second portions 12, and the two second portions 12 are symmetrically distributed.
The two second portions 12 are symmetrically distributed, wherein the concave sides of the second portions 12 are opposite to each other, and the convex sides of the second portions 12 are opposite to each other.
The two adjacent first portions 11 are connected by the two second portions 12, so that the strength of the substrate 10 can be enhanced on the premise of ensuring the tensile property of the display substrate, and the second portions 12 are prevented from being broken due to deformation fatigue, and the service life of the display substrate is prolonged.
Specifically, the deformation degree of the second portion 12 can be determined according to the included angle between the side surface of the first portion 11 and the side surface of the second portion 12, as shown in fig. 2a and fig. 2b, the included angle between the side surface of the first portion 11 and the side surface of the second portion 12 before being stressed is θ, and the included angle θ after being stressed is increased, and the deformation degree of the second portion 12 can be determined according to the change of the included angle θ, so that the deformation degree of the second portion 12 can be accurately controlled, and the second portion 12 is prevented from being damaged due to excessive external force.
Preferably, the cross-sectional area of the second portion 12 at the connection with the first portion 11 is larger than the cross-sectional area of the rest of the second portion 12.
When the display substrate is stretched by an external force, since the deformation of the first portion 11 is much smaller than that of the second portion 12, stress concentration may occur at the connection between the first portion 11 and the second portion 12, so that the connection between the first portion 11 and the second portion 12 is easily damaged (e.g., broken).
The cross-sectional area of the second portion 12 at the junction with the first portion 11 is greater than the cross-sectional area of the rest of the second portion 12, which prevents the substrate 10 from being easily damaged at the junction of the first portion 11 and the second portion 12.
Furthermore, the second portion 12 may be arc-shaped without corners, so as to avoid that the corners of the second portion 12 are easily damaged by stress concentration during deformation. The dimensions of the second portion 12 (its cross-sectional area) can be adjusted to account for the stress concentrations that occur in practical situations, distributing the stress throughout the second portion 12 and avoiding vulnerable areas due to stress concentrations.
Preferably, the substrate 10 is made of a deformable material of the memory type.
The memory type deformable material can deform under the action of external force, and can restore to the shape before being stressed if the external force disappears and certain triggering conditions (such as temperature, magnetic force, illumination and the like) are met. That is, after the display substrate is stretched, the display substrate can automatically return to the original state under a certain condition.
Preferably, the light emitting unit 20 is formed on the first portion 11, and the signal line 30 is formed on the second portion 12.
The light emitting unit 20 may include a plurality of different pixel structures (e.g., R, G, B pixel structures), one pixel structure may be disposed on each of the first portions 11, or a plurality of pixel structures may be disposed on each of the first portions 11.
The light-emitting unit 20 which is not easy to deform is arranged on the first part 11 which is hardly deformed after being stressed, and the signal line 30 which is easy to deform is arranged on the second part 12 which is deformed greatly after being stressed, so that the display performance of the stretchable display substrate can be better ensured not to be influenced by the deformation of the substrate 10.
Of course, the foregoing is merely an example and is not intended to be limiting in any particular manner. For example, the shapes of the first portions 11 may be different, the number and the connection manner of the second portions 12 may be different, each first portion 11 may have only one light emitting unit 20, or may have many light emitting units 20, each second portion 12 may have light emitting units 20, and the signal lines 30 of the plurality of second portions 12 connected between two first portions 11 may be the same signal line 30 connected in parallel, and if one of the signal lines 30 is broken, signal transmission may be performed through the other signal line 30 connected in parallel thereto, thereby ensuring the performance of the display substrate.
Example 2:
the present embodiment provides a display device including the display substrate of embodiment 1.
Specifically, the display device can be any product or component with a display function, such as an Organic Light Emitting Diode (OLED) display panel, electronic paper, a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator and the like.
In the display device of this embodiment, the display substrate can have stretchable performance without affecting the display performance, so as to expand the application range of the display substrate, for example, the display device can be applied to the field of irregular surface display.
Example 3:
the present embodiment provides a method for manufacturing the display substrate of embodiment 1, including:
first, a display structure is formed on a base material.
Next, a patterning process is used to remove the portion of the base material without the display structure to form an opening.
The method for manufacturing the display device of the embodiment can form the display substrate with stretchable performance, thereby expanding the application range of the display substrate, and can be applied to the field of irregular surface display, for example.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
While embodiments in accordance with the invention have been described above, these embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments described. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention and various embodiments with various modifications as are suited to the particular use contemplated. The invention is limited only by the claims and their full scope and equivalents.
Claims (7)
1. A display substrate comprising a base, a display structure formed on the base, the base having a plurality of openings communicating a top surface and a bottom surface thereof, and the base being made of a deformable material;
the substrate includes: a plurality of first portions distributed in an array; a plurality of second portions, at least two adjacent first portions are connected by at least one second portion, so that the positions of the first portions, which are not connected with the second portions, form the plurality of openings;
the first parts are in a block shape, the second parts are in a bent strip shape, and when forces which are parallel to a connecting line between the two adjacent first parts and have opposite directions are respectively applied to the two adjacent first parts, the second parts connecting the two first parts in the stress direction can deform, so that the distance between the two stressed first parts is changed;
at least two adjacent first parts are connected by two second parts, and the two second parts are symmetrically distributed.
2. The display substrate of claim 1,
in the row direction, any two adjacent first parts are connected through at least one second part;
in the column direction, any two adjacent first portions are connected through at least one second portion.
3. The display substrate of claim 1, wherein the second portion has a cross-sectional area at a connection with the first portion that is larger than a cross-sectional area of a remaining portion of the second portion.
4. The display substrate according to claim 1, wherein the display structure comprises a light-emitting unit and a signal line connecting the light-emitting unit, wherein the light-emitting unit is formed on the first portion, and wherein the signal line is formed on the second portion.
5. The display substrate of claim 1, wherein the base is made of a memory-type deformable material.
6. A display device comprising the display substrate according to any one of claims 1 to 5.
7. A method of manufacturing a display substrate according to any one of claims 1 to 5, comprising:
forming the display structure on a base material;
and removing the part of the substrate material without the display structure by adopting a patterning process to form the opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811222102.2A CN109390357B (en) | 2018-10-19 | 2018-10-19 | Display substrate, manufacturing method thereof and display device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811222102.2A CN109390357B (en) | 2018-10-19 | 2018-10-19 | Display substrate, manufacturing method thereof and display device |
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| Publication Number | Publication Date |
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| CN109390357A CN109390357A (en) | 2019-02-26 |
| CN109390357B true CN109390357B (en) | 2021-02-09 |
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| CN201811222102.2A Expired - Fee Related CN109390357B (en) | 2018-10-19 | 2018-10-19 | Display substrate, manufacturing method thereof and display device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111968518B (en) * | 2020-08-31 | 2022-03-08 | 上海天马微电子有限公司 | Stretchable display panel, manufacturing method thereof and stretchable display device |
| CN112419892B (en) * | 2020-11-16 | 2023-01-17 | 武汉天马微电子有限公司 | Display panel and display device |
| CN113345327B (en) * | 2021-05-26 | 2022-05-13 | 武汉天马微电子有限公司 | Stretchable display panel, stretchable display module and stretchable display device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105977276A (en) * | 2015-03-10 | 2016-09-28 | 三星显示有限公司 | Organic light emitting diode display |
| CN107994052A (en) * | 2016-10-26 | 2018-05-04 | 三星显示有限公司 | Display device |
| CN109064900A (en) * | 2018-09-04 | 2018-12-21 | 京东方科技集团股份有限公司 | A kind of stretchable display base plate and its manufacturing method, stretchable displayer |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006129232A2 (en) * | 2005-05-31 | 2006-12-07 | Koninklijke Philips Electronics N.V. | Flexible display device |
| KR102175991B1 (en) * | 2014-12-26 | 2020-11-09 | 삼성디스플레이 주식회사 | Display apparatus and manufacturing method thereof |
| KR102446889B1 (en) * | 2015-12-28 | 2022-09-26 | 삼성디스플레이 주식회사 | Flexible substrate and Flexible display device including the same |
| CN208270884U (en) * | 2018-07-04 | 2018-12-21 | 京东方科技集团股份有限公司 | substrate and display device |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105977276A (en) * | 2015-03-10 | 2016-09-28 | 三星显示有限公司 | Organic light emitting diode display |
| CN107994052A (en) * | 2016-10-26 | 2018-05-04 | 三星显示有限公司 | Display device |
| CN109064900A (en) * | 2018-09-04 | 2018-12-21 | 京东方科技集团股份有限公司 | A kind of stretchable display base plate and its manufacturing method, stretchable displayer |
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| CN109390357A (en) | 2019-02-26 |
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Granted publication date: 20210209 |