CN109471285B - Flexible substrate, flexible display panel and display device - Google Patents
Flexible substrate, flexible display panel and display device Download PDFInfo
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- CN109471285B CN109471285B CN201811416562.9A CN201811416562A CN109471285B CN 109471285 B CN109471285 B CN 109471285B CN 201811416562 A CN201811416562 A CN 201811416562A CN 109471285 B CN109471285 B CN 109471285B
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/133305—Flexible substrates, e.g. plastics, organic film
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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 at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier
- 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 at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier 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 at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier 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 at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier 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
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- Condensed Matter Physics & Semiconductors (AREA)
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Abstract
The invention provides a flexible substrate, a flexible display panel and a display device. The glass substrate is provided with a plurality of transverse channels and a plurality of longitudinal channels, and the transverse channels and the longitudinal channels are intersected to form a plurality of rectangular areas; and the transverse channel and the longitudinal channel respectively penetrate through the glass substrate, wherein a filling body is respectively arranged in the transverse channel and the longitudinal channel, so that the filling body fills the transverse channel and the longitudinal channel, and a groove is formed in the transverse channel and the longitudinal channel.
Description
Technical Field
The invention relates to the technical field of display, in particular to a flexible substrate, a flexible display panel and a display device.
Background
In recent years, along with the popularization of flexible wearable devices and flexible mobile devices, flexible display technology is more and more sought after by consumers. Due to the technical limitation of the display panel, the flexible display technology mainly adopts an Organic Light-Emitting Diode (OLED) display panel, and there are few reports on the application of a Liquid Crystal Display (LCD) panel to flexible display.
The LCD display panel is advantageous in that it has a longer life span, a more mature manufacturing process, a higher yield, and a lower cost than the OLED display panel.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a conventional LCD display panel. As shown in fig. 1, the LCD display panel 1 includes a first substrate 11 and a second substrate 12 attached to each other in an up-down manner, and a liquid crystal layer 13 interposed between the first substrate 11 and the second substrate 12, wherein the first substrate 11 and the second substrate 12 are both glass substrates. Therefore, the LCD display panel 1 cannot be bent at an arbitrary curvature due to its limited glass characteristics, and thus cannot be applied to a flexible display technology.
Therefore, it is desirable to provide a new flexible substrate that can be applied to LCD display panels to solve the problems of the conventional LCD
The display panel can not be bent.
Disclosure of Invention
An object of the present invention is to provide a flexible substrate applicable to an LCD display panel, especially a TFT-LCD
In the display panel, the LCD display panel is made flexible.
In order to achieve the above object, the present invention provides a flexible substrate for a flexible display panel. The flexible substrate includes: the glass substrate is provided with a plurality of transverse channels and a plurality of longitudinal channels, and the transverse channels and the longitudinal channels are intersected to form a plurality of rectangular areas; the transverse channels and the longitudinal channels penetrate through the glass substrate; and the filling body partially fills the transverse channel and the longitudinal channel so as to form a groove in the transverse channel and the longitudinal channel.
In an embodiment of the invention, the flexible substrate further includes at least one layer of elastomer, and the elastomer is formed on the surface of the glass substrate and covers the glass substrate to completely fill the grooves in the transverse channels and the longitudinal channels.
In an embodiment of the invention, the depth of the groove is different according to different compositions of the glass substrate. In one embodiment, the trenches in each of the plurality of lateral channels have the same or different depths from each other; the grooves in each of the plurality of longitudinal channels have the same or different depths from each other.
In a preferred embodiment of the present invention, the trenches in the plurality of lateral channels have a uniform depth. In a preferred embodiment of the present invention, the grooves in the plurality of longitudinal channels have a uniform depth. In a preferred embodiment of the present invention, the grooves in the plurality of transverse channels and the grooves in the plurality of longitudinal channels have the same uniform depth.
In an embodiment of the invention, the opening width of the trench is set to be different according to different actual resolutions. The grooves in each of the plurality of transverse channels have mutually the same or different opening widths; the grooves in each of the plurality of longitudinal channels have mutually the same or different opening widths.
In a preferred embodiment of the present invention, the trench in the plurality of transverse channels has a uniform opening width. In a preferred embodiment of the present invention, the grooves in the plurality of longitudinal channels have a uniform opening width. In a preferred embodiment of the present invention, the grooves in the plurality of transverse channels and the grooves in the plurality of longitudinal channels have the same uniform opening width.
In an embodiment of the present invention, the cross-sectional shape of the groove is, for example, but not limited to, rectangular, triangular, trapezoidal, or arcuate.
In a preferred embodiment of the present invention, the grooves in the plurality of transverse channels have a uniform cross-sectional shape. In a preferred embodiment of the present invention, the grooves in the plurality of longitudinal channels have a uniform cross-sectional shape. In a preferred embodiment of the present invention, the grooves in the plurality of transverse channels and the grooves in the plurality of longitudinal channels have the same uniform cross-sectional shape.
In an embodiment of the present invention, the filling body and the elastic body are made of the same material or different materials.
In a preferred embodiment of the present invention, the elastomer is made of a material such as, but not limited to, polyvinyl alcohol (PVA), Polyimide (PI), etc.
The invention also provides application of the glass substrate or the flexible substrate in a thin film transistor array substrate (TFT array substrate), a color film array substrate (CF substrate), a flexible display panel, a flexible LCD display panel, a display or an electronic device.
The invention also provides a flexible display panel, which at least comprises any one of the flexible substrates.
In an embodiment of the invention, the flexible display panel includes a TFT array substrate, wherein the TFT array substrate includes a plurality of pixel units, a pixel unit is formed in a rectangular region of the glass substrate of the flexible substrate, and a TFT device is formed in each pixel unit.
In an embodiment of the present invention, the flexible substrate includes at least one layer of elastomer, the elastomer is formed on the surface of the glass substrate and covers the glass substrate, and the pixel unit of the TFT array substrate is formed on the elastomer. That is, the TFT device layer of the TFT array substrate is formed on the elastic body of the flexible substrate, and the pixel unit in the display area of the TFT array substrate corresponds to a rectangular area on the glass substrate of the flexible substrate.
In an embodiment of the present invention, the flexible display panel includes a color film substrate, wherein the color film substrate has a plurality of sub-pixel units arranged in an array, and a sub-pixel unit is formed in a rectangular area of the glass substrate of the flexible substrate.
In an embodiment of the present invention, the flexible substrate further includes at least one layer of elastomer, the elastomer is formed on the surface of the glass substrate and covers the glass substrate, and the sub-pixel units of the color filter substrate are formed on the elastomer.
In a preferred embodiment, the present invention provides a flexible LCD display panel, which includes a first substrate and a second substrate disposed opposite to each other, and a liquid crystal layer sandwiched between the first substrate and the second substrate; at least one of the first substrate and the second substrate is the thin film transistor array substrate or the color film substrate.
The invention also provides a display which comprises the flexible display panel. The flexible display panel is a flexible LCD display panel.
In the present invention, the depth of the groove refers to: the distance between the lowest point in the cross-sectional shape of the groove in the transverse channel (or the longitudinal channel) and the plane where the groove is opened.
In the flexible substrate, the groove penetrating through the glass substrate is formed on the glass substrate, and the filler and the elastomer are filled in the groove, so that the overall bending tension of the glass substrate is reduced, and the toughness and elasticity of the glass substrate are increased to realize the bending of the glass substrate. Meanwhile, the rectangular area formed by the channels on the glass substrate corresponds to the pixel unit of the TFT array substrate and/or the sub-pixel unit of the CF substrate, so that the cohesion of the glass surface between the pixel units is eliminated, and the flexible LCD display panel is obtained.
Drawings
FIG. 1 is a schematic diagram of a conventional LCD panel;
FIG. 2 is a schematic structural diagram of a flexible substrate according to an embodiment of the invention;
FIG. 3 is a top view of a glass substrate of the flexible substrate of FIG. 2;
FIG. 4 is a cross-sectional view A-A' of FIG. 3;
fig. 5A to 5D are partial method diagrams of fig. 4.
FIG. 6 is a schematic structural diagram of a TFT array substrate according to an embodiment of the invention;
FIG. 7 is a schematic structural diagram of a CF substrate according to an embodiment of the invention;
fig. 8 is a schematic structural diagram of a flexible LCD display panel according to an embodiment of the present invention.
Detailed Description
Hereinafter, the technique of the present invention will be described in detail with reference to specific embodiments. It should be understood that the following detailed description is only for the purpose of assisting those skilled in the art in understanding the present invention, and is not intended to limit the present invention.
Referring to fig. 2, a flexible substrate 100 is provided in the present embodiment, which can be applied to a flexible display panel. The flexible substrate 100 includes: a glass substrate 110, at least one layer of elastomer 130 and a filler 150. The filling body 150 and the elastic body 130 may be made of the same material or different materials. When the filling body 150 and the elastic body 130 are made of the same material, the flexible substrate 100 actually includes a glass substrate 110 and a layer of elastic body 130 formed on the glass substrate 110. Of course, in the present embodiment, the elastic body 130 and the filling body 150 are made of different materials for clarity of description. The elastomer 130 (or the filler 150) is made of a material such as, but not limited to, polyvinyl alcohol (PVA), Polyimide (PI), etc.
The glass substrate 110 is described in detail below with reference to fig. 3, 4, and 5A to 5D.
As shown in fig. 3, a plurality of transverse channels 112 and a plurality of longitudinal channels 114 are disposed on the glass substrate 110, and the plurality of transverse channels 112 and the plurality of longitudinal channels 114 intersect to form a plurality of rectangular regions 116.
In the present embodiment, the lateral channels 112 and the longitudinal channels 114 have the same structure, and the lateral channels 112 are only used as an example for explanation.
As shown in fig. 4, the lateral channels 112 penetrate the glass substrate 110. The fill 150 is filled in a portion of the lateral trench 112 to form a trench 118. Fig. 5A-5D are enlarged partial views of fig. 4, showing several different cross-sectional shapes of the groove 118. As shown in fig. 5A-5D, the cross-sectional shape of the trench 118 is, for example, but not limited to, rectangular (fig. 5A), triangular (fig. 5B), trapezoidal (fig. 5C), or arcuate (fig. 5D). Of course, those skilled in the art should understand that the cross-sectional shape of the trench 118 is not limited to the shapes listed in fig. 5A to 5D in the present embodiment, and the trench 118 with different cross-sectional shapes can be formed according to the requirements of the glass substrate 110 and the actual bending ratio. The groove 118 is then filled with the elastomer 130.
The depth of the trench 118 is set differently according to the composition of the glass substrate 110. That is, the depth of the groove 118 is determined by the flexibility of the glass substrate 110. The trenches 118 within each of the plurality of lateral channels 112 have the same depth.
In an embodiment of the invention, the opening width of the trench 118 is set differently according to the actual resolution of the display panel. The trenches 118 in each of the plurality of lateral channels 114 have the same opening width.
The filler 150 is provided to further improve toughness of the glass substrate 110, and thus, the filler 150 has elasticity.
In addition, in the present embodiment, the glass substrate 110 is etched by a known method to form the lateral trenches 112 as shown in fig. 4 and fig. 5A to 5D, the filling bodies 150 are filled in the lateral trenches 112, and finally a layer of elastic bodies 130 is formed on the glass substrate 110 to finally obtain the flexible substrate 100 as shown in fig. 2.
As shown in fig. 6, the present embodiment further provides a TFT array substrate 200, wherein the TFT array substrate 200 includes the flexible substrate 100 and has a conventional structure known in the art, such as a plurality of pixel units 210 formed by a plurality of data lines D1-D4 and a plurality of scan lines G1-G4 formed on the elastic body of the flexible substrate 100. The pixel unit 210 is formed within each rectangular region 116 (numbered see fig. 3) corresponding to the glass substrate. As will be understood by those skilled in the art, the TFT array substrate 200 forms a TFT device 211 in each pixel unit 210.
As shown in fig. 7, the present embodiment further provides a color filter substrate 300, where the color filter substrate 300 includes the flexible substrate 100 and has a conventional structure known in the art, for example, a plurality of sub-pixel units 310 (including R color resistors, G color resistors, and B color resistors) arranged in an array, a plurality of sub-pixel units 310 distributed in a display are formed on the elastic body 130 (labeled as fig. 2) of the flexible substrate 100, and one sub-pixel unit 310 corresponds to one rectangular region 116 (labeled as fig. 3) of the glass substrate. For example, an R color resistor is formed on a rectangular region 116 of the elastic body 130 (see fig. 2) corresponding to the glass substrate.
As shown in fig. 8, the present embodiment further provides a flexible LCD display panel 400, which includes a first substrate 410 and a second substrate 420 disposed opposite to each other, and a liquid crystal layer 430 sandwiched between the first substrate 410 and the second substrate 420. At least one of the first substrate 410 and the second substrate 420 is the tft array substrate 200 or the color filter substrate 300.
Of course, it can be understood by those skilled in the art that the present embodiment may also provide a display, where the display includes the thin film transistor array substrate 200 or the color filter substrate 300, or includes the display panel 400.
In the flexible substrate, the groove penetrating through the glass substrate is formed on the glass substrate, and the filler and the elastomer are filled in the groove, so that the overall bending tension of the glass substrate is reduced, and the toughness and elasticity of the glass substrate are increased to realize the bending of the glass substrate. Meanwhile, the rectangular area formed by the channels on the glass substrate corresponds to the pixel unit of the TFT array substrate and/or the sub-pixel unit of the CF substrate, so that the cohesion of the glass surface between the pixel units is eliminated, and the flexible LCD display panel is obtained.
The present invention has been described in relation to the above embodiments, which are only exemplary of the implementation of the present invention. It must be noted that the disclosed embodiments do not limit the scope of the invention. Rather, modifications and equivalent arrangements included within the spirit and scope of the claims are included within the scope of the invention.
Claims (9)
1. A flexible substrate for a display panel, the flexible substrate comprising:
the glass substrate is provided with a plurality of transverse channels and a plurality of longitudinal channels, and the transverse channels and the longitudinal channels are intersected to form a plurality of rectangular areas; and the transverse channels and the longitudinal channels penetrate through the glass substrate,
a filler partially filling the lateral and longitudinal channels to form a trench in both the lateral and longitudinal channels, an
At least one layer of elastomer, the elastomer is formed on one surface of the glass substrate and covers the glass substrate so as to completely fill the grooves in the transverse channels and the longitudinal channels.
2. The flexible substrate of claim 1, wherein the filler and the elastomer are made of the same material or different materials.
3. The flexible substrate of claim 1 or 2, wherein the grooves have a cross-sectional shape that is rectangular, triangular, trapezoidal, or arcuate.
4. A flexible display panel comprising at least one flexible substrate according to claim 1.
5. The flexible display panel of claim 4, wherein the flexible display panel comprises a thin film transistor array substrate, wherein the thin film transistor array substrate comprises a plurality of pixel cells, wherein a pixel cell is formed in a rectangular region of the glass substrate of the flexible substrate, and wherein a thin film transistor device is formed in each pixel cell.
6. The flexible display panel according to claim 5, wherein the flexible substrate further comprises at least one layer of elastomer, the elastomer is formed on one surface of the glass substrate and covers the glass substrate, and the pixel unit of the thin film transistor array substrate is formed on the elastomer.
7. The flexible display panel according to claim 6, wherein the flexible display panel comprises a color filter substrate, wherein the color filter substrate has a plurality of sub-pixel units arranged in an array, and a sub-pixel unit is formed in a rectangular region of the glass substrate of the flexible substrate.
8. The flexible display panel according to claim 7, wherein the flexible substrate further comprises at least one layer of elastomer, the elastomer is formed on one surface of the glass substrate and covers the glass substrate, and the sub-pixel units of the color filter substrate are formed on the elastomer.
9. A display device comprising a flexible display panel according to claim 4.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811416562.9A CN109471285B (en) | 2018-11-26 | 2018-11-26 | Flexible substrate, flexible display panel and display device |
| PCT/CN2018/125459 WO2020107630A1 (en) | 2018-11-26 | 2018-12-29 | Flexible substrate, flexible display panel, and display device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811416562.9A CN109471285B (en) | 2018-11-26 | 2018-11-26 | Flexible substrate, flexible display panel and display device |
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| CN109471285A CN109471285A (en) | 2019-03-15 |
| CN109471285B true CN109471285B (en) | 2020-09-01 |
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| CN111162179B (en) * | 2019-12-30 | 2023-01-31 | 电子科技大学 | High-reflection-film-coverage semitransparent perovskite solar cell and preparation method thereof |
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| CN106229293A (en) * | 2016-08-04 | 2016-12-14 | 深圳爱易瑞科技有限公司 | Flexible organic LED display device and the manufacture method of panel |
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| KR20060122491A (en) * | 2005-05-27 | 2006-11-30 | 삼성전자주식회사 | Method of manufacturing flexible display device |
| CN102651331A (en) * | 2011-06-14 | 2012-08-29 | 京东方科技集团股份有限公司 | Substrate tray and manufacturing method of flexible electronic device |
| CN102969320B (en) * | 2012-12-10 | 2015-10-21 | 京东方科技集团股份有限公司 | Flexible display substrates and preparation method thereof, flexible display apparatus |
| CN103531722B (en) * | 2012-12-24 | 2016-01-20 | Tcl集团股份有限公司 | A kind of preparation method of flexible display |
| CN104103648B (en) * | 2014-07-24 | 2017-12-05 | 上海天马微电子有限公司 | Flexible display device, Flexible Displays motherboard and preparation method thereof |
| CN104851889A (en) * | 2015-04-10 | 2015-08-19 | 京东方科技集团股份有限公司 | Foldable substrate, manufacturing method thereof, and flexible display device |
| CN108364571B (en) * | 2018-01-19 | 2020-09-25 | 云谷（固安）科技有限公司 | Flexible backboard, manufacturing method thereof and display device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106229293A (en) * | 2016-08-04 | 2016-12-14 | 深圳爱易瑞科技有限公司 | Flexible organic LED display device and the manufacture method of panel |
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| WO2020107630A1 (en) | 2020-06-04 |
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