CN110502137B - display device - Google Patents
display device Download PDFInfo
- Publication number
- CN110502137B CN110502137B CN201810476690.6A CN201810476690A CN110502137B CN 110502137 B CN110502137 B CN 110502137B CN 201810476690 A CN201810476690 A CN 201810476690A CN 110502137 B CN110502137 B CN 110502137B
- Authority
- CN
- China
- Prior art keywords
- sub
- touch
- wires
- array substrate
- bending
- 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.)
- Active
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0412—Digitisers structurally integrated in a display
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
- G06F2203/04112—Electrode mesh in capacitive digitiser: electrode for touch sensing is formed of a mesh of very fine, normally metallic, interconnected lines that are almost invisible to see. This provides a quite large but transparent electrode surface, without need for ITO or similar transparent conductive material
Abstract
The present invention provides a display device including: the array substrate comprises a first surface for display and a second surface opposite to the first surface; the flexible circuit board is positioned on the second surface of the array substrate; a touch panel, comprising: the touch electrode array is positioned on the first surface of the array substrate; a plurality of touch traces, each touch trace comprising: the first sub-wires are positioned on the first surface of the array substrate, one end of each touch control wire is connected with the touch control electrode, and the other ends of the first sub-wires of each touch control wire are parallel to each other; the second sub-wires are positioned on the second surface of the array substrate, one end of each touch control wire is connected with the flexible circuit board, and the second sub-wires of each touch control wire are parallel to each other; the bending sub-wires extend from the first sub-wires to the second sub-wires, and the bending sub-wires of the touch control wires are parallel to each other. The display device provided by the invention can prevent the wiring from bending and breaking and realize a narrow frame.
Description
Technical Field
The invention relates to the technical field of display, in particular to a display device.
Background
In recent years, OLED (Organic Light-Emitting Diode) technology has been rapidly developed, and has become a most promising technology for replacing LCDs (Liquid Crystal Display, liquid crystal displays).
In addition, with the development of man-machine interaction technology, touch technology is increasingly used on various displays. Capacitive touch technology is widely used because of its wear resistance, long life, low maintenance costs when used by users, and the ability to support gesture recognition and multi-touch.
Capacitive touch technologies can be classified into self-capacitive touch technologies and mutual-capacitive touch technologies according to detection modes of capacitances between different objects. Self-capacitive touch technology detects the presence, position and motion of an input object on a touch screen based on the change in capacitance between the input object and an electrode. The mutual capacitive touch technology detects the existence, position and motion of an input object on a touch screen according to the capacitance change between electrodes caused by the input object.
In a display device integrated with a touch screen, in order to avoid attenuation of signals and improve touch sensitivity of the touch screen, electrode leads of the touch screen are generally made of metal materials with high conductivity such as silver and copper. Because the metal material is opaque, for the sake of beauty, the electrode leads are arranged in the frame area of the transparent substrate and covered by the shading ink. In order to increase the ratio of the viewing area, it is necessary to reduce the width of the bezel area as much as possible.
As shown in fig. 1, in the display device of the prior art, the display device is provided with a touch electrode 110, the touch electrode 110 is connected to a flexible circuit board 130 through a touch trace 120, and the touch trace 120 is connected to the flexible circuit board 130 through a pad 140. Since the flexible circuit board 130 is required to be disposed in the non-display area of the display device, the frame width thereof is generally large.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides a display device which can prevent the bending and breaking of the wiring and realize a narrow frame.
The present invention provides a display device including: the array substrate comprises a first surface for display and a second surface opposite to the first surface; the flexible circuit board is positioned on the second surface of the array substrate; a touch panel, comprising: the touch electrode array comprises a plurality of touch electrodes, and is positioned on the first surface of the array substrate; the touch control wiring comprises a plurality of touch control wiring lines, wherein each touch control wiring line comprises: the first sub-wires are positioned on the first surface of the array substrate, one end of each touch wire is connected with the touch electrode, and the other ends of the first sub-wires of each touch wire are parallel to each other; the second sub-wires are positioned on the second surface of the array substrate, one end of each second sub-wire of each touch wire is connected with the flexible circuit board, and the second sub-wires of each touch wire are parallel to each other; the bending sub-wires extend from the first sub-wires to the second sub-wires, and the bending sub-wires of the touch control wires are parallel to each other.
Optionally, the extending direction of the bending sub-trace is perpendicular to the first surface and the second surface of the array substrate.
Optionally, each of the second sub-wires is connected to the flexible circuit board through a pad, and each of the pads is located on the second surface of the array substrate.
Optionally, at least the meander sub-trace is patterned.
Optionally, each of the bent sub-traces has a plurality of through holes arranged along an extending direction of the bent sub-trace.
Optionally, the through hole has a rectangular, diamond, circular, oval shape.
Optionally, a portion of each of the bent sub-wires bent from the first surface to the second surface of the array substrate and/or a portion of each of the bent sub-wires bent from the second surface to the first surface of the array substrate has the through hole.
Optionally, each of the bent sub-traces has a zigzag pattern.
Optionally, the width of the portion of each bent sub-trace bent from the first surface to the second surface of the array substrate and/or the width of the portion of each bent sub-trace bent from the second surface to the first surface of the array substrate is the minimum width of the bent sub-trace.
Optionally, the touch panel has a touch area and a routing area formed by the touch electrode array, and a distance between a boundary of the touch area and a boundary of the touch panel is greater than 1.5 mm and less than 2.5 mm.
Compared with the prior art, the bending of the touch routing is not related to the flexible circuit board, even not related to the connecting pad of the flexible circuit board, so that the situation that the flexible circuit board and the connecting pad are broken due to metal or the bending area falls off is prevented. In addition, the bending property of the bending sub-wire is enhanced by arranging the pattern of the bending sub-wire of the touch wire. Further, by the arrangement mode, the distance between the touch area and the touch panel boundary can be further reduced, and the narrow frame of the display device is realized.
Drawings
The above and other features and advantages of the present invention will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings.
Fig. 1 shows a schematic diagram of a prior art display device.
Fig. 2 illustrates a cross-sectional view of a display device according to an embodiment of the present invention.
Fig. 3 illustrates a schematic view of a first side of an array substrate of a display device according to an embodiment of the present invention.
Fig. 4 shows a side view of a display device according to an embodiment of the invention.
Fig. 5 illustrates a schematic diagram of a second side of an array substrate of a display device according to an embodiment of the present invention.
Fig. 6 to 9 are schematic diagrams illustrating a bent sub-trace according to various embodiments of the present invention.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments can be embodied in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus a repetitive description thereof will be omitted.
The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the invention. It will be appreciated, however, by one skilled in the art that the inventive aspects may be practiced without one or more of the specific details, or with other methods, components, materials, etc. In some instances, well-known structures, materials, or operations are not shown or described in detail to avoid obscuring the invention.
The drawings of the present invention are only for illustrating the relative positional relationship, and the dimensions of some parts are exaggerated in order to facilitate understanding, and the dimensions in the drawings do not represent the proportional relationship of the actual dimensions.
The display device provided by the present invention is described below with reference to fig. 2 to 5. Fig. 2 illustrates a cross-sectional view of a display device according to an embodiment of the present invention. Fig. 3 illustrates a schematic view of a first side of an array substrate of a display device according to an embodiment of the present invention. Fig. 4 shows a side view of a display device according to an embodiment of the invention. Fig. 5 illustrates a schematic diagram of a second side of an array substrate of a display device according to an embodiment of the present invention.
The display device 200 includes an array substrate 206, a touch panel 202, and a flexible circuit board 230.
The array substrate 206 includes a plurality of gate lines and a plurality of data lines, which cross each other to form a pixel region, and the pixel region may emit light through a liquid crystal or an organic light emitting material and be on-off controlled through a thin film transistor disposed in the pixel region. The array substrate 206 includes a first surface 203 for display and a second surface 205 facing away from the first surface 203.
The flexible circuit board 230 is located on the second surface 205 of the array substrate 206.
The touch panel 202 includes a touch electrode array 201 and a plurality of touch traces. The touch panel 202 may be, for example, a flexible transparent film such as PET (polyethylene terephthalate), COP (optical fiber), CPI (transparent polyimide), or the like. The touch electrode array 201 is located on the first surface 203 of the array substrate 206. The touch electrode array 201 includes a plurality of touch electrodes 210. As shown in fig. 3, the plurality of touch electrodes may include, for example, a plurality of first touch electrodes and a plurality of second touch electrodes. The first touch electrode and the second touch electrode are diamond electrodes. The plurality of first touch electrodes are arranged in a matrix. The plurality of first touch electrodes are connected to each other in a row direction of the matrix. The plurality of second touch electrodes are arranged in a matrix. The plurality of second touch electrodes are connected to each other in a column direction of the matrix. In this embodiment, the first touch electrode and the second touch electrode are insulated from each other, and touch sensing is performed by measuring the capacitance between the first touch electrode and the second touch electrode. Specifically, the projections of the first touch electrode and the second touch electrode on the plane of the touch panel 202 do not overlap. The projected areas of the first touch electrode and the second touch electrode on the plane of the touch panel 202 are the same. Fig. 3 is for illustrative purposes only, each touch electrode may also be, for example, a strip electrode extending in a row direction and a column direction, the strip electrodes being located in different layers, and the capacitance of the overlapping portions of the strip electrodes being used for touch sensing. Those skilled in the art may implement more touch modes, and will not be described in detail herein.
Each of the touch traces includes a first sub-trace 221, a second sub-trace 223, and a bent sub-trace 222. The first sub-trace 221 is located on the first surface 203 of the array substrate 206. One end of the first sub-trace 221 of each touch trace is connected to the touch electrode 210. The other ends of the first sub-traces 221 of each touch trace are parallel to each other. The second sub-trace 223 is located on the second surface 205 of the array substrate 206. One end of the second sub-trace 223 of each touch trace is connected to the flexible circuit board 230. The second sub-traces 223 of each of the touch traces are parallel to each other. Each of the second sub-traces 223 is connected to the flexible circuit board 230 through a pad 240, and each of the pads 240 is located on the second surface 205 of the array substrate 206. The folded sub-trace 222 extends from the first sub-trace 221 to the second sub-trace 223. The bending sub-traces 222 of each of the touch traces are parallel to each other. The bending radius of the bending sub-wire is generally less than or equal to 0.5mm, and the length of the bending sub-wire 222 is required to be greater than 2mm in order to prevent the back bonding pad from falling off due to bending. The length of the trace 223 is not particularly limited. Specifically, the extending direction of the bending sub-trace 222 is perpendicular to the first surface 203 and the second surface 205 of the array substrate 206 (as shown in fig. 4).
It will be appreciated that the width of the touch trace (e.g., 10 to 20 microns) is much smaller than the width of the flexible circuit board 230 and the pads 240, and thus the touch trace is more resistant to bending. In the present invention, the bending related to the flexible circuit board 230 and the pad 240 is avoided in the manner shown in fig. 2 to 5, so as to prevent metal fracture or bending falling caused by bending the flexible circuit board 230 and the pad 240, and further improve the touch function of the touch panel. In addition, by the above arrangement, compared with the prior art, the distance between the boundary of the touch area formed by the touch electrode array 201 and the boundary of the touch panel 202 is reduced, for example, the distance between the boundary of the touch area and the boundary of the touch panel is greater than 1.5 mm and less than 2.5 mm, so as to realize a narrow frame of the display device.
In some variations of the present invention, at least the inflection trace may be patterned, but the present invention is not limited thereto, and other portions of the touch trace may be patterned. Different patterned embodiments of the meander trace are described below with respect to fig. 6-9, respectively.
Referring first to fig. 6 and 7, the meander sub-trace 222 has a plurality of through holes 229 arranged along the direction in which the meander sub-trace 222 extends. The through holes 229 have rectangular (fig. 6), diamond (fig. 9), circular, oval shapes. Further, the boundary of the meander sub-trace 222 may be adapted to the boundary of the via 229 to reduce the width of the meander sub-trace 222.
Further, in the embodiment shown in fig. 6 and 7, the portion of each of the bent sub-traces 222 bent from the first surface to the second surface of the array substrate and/or the portion of each of the bent sub-traces 222 bent from the second surface to the first surface of the array substrate has the through hole 229 (the bent portion is shown as a dotted line in fig. 6 and 7). By doing so, the width of the portion of the folded sub-trace 222 that is folded can be minimized, thereby improving the bending resistance of the folded sub-trace 222. In a variation of fig. 6 and 7, only the bent portion of the bent sub-trace 222 may be provided with a through hole to reduce the dimensional error caused by the process, and reduce the increase of resistance caused by the patterning of the whole touch trace, so as to reduce the delay of the touch signal and enhance the touch function. In some embodiments, the through holes 229 are provided only in the bent portions as in fig. 6 and 7.
Next, referring to fig. 8 and 9, the meander sub trace 222 has a meander line pattern. For example, the line type folding line pattern shown in fig. 8 or the arc type folding line pattern shown in fig. 9 may be used, which is not limited to the present invention. The bending sub-trace 222 has a zigzag pattern to reduce the width of a portion of the bending sub-trace 222.
Further, in the embodiment shown in fig. 8 and 9, the width of the portion of each of the bent sub-traces 222 bent from the first surface to the second surface of the array substrate and/or the width of the portion of each of the bent sub-traces bent from the second surface to the first surface of the array substrate is the minimum width of the bent sub-traces (the bent portion is shown as a dotted line in fig. 8 and 9). By doing so, the width of the portion of the folded sub-trace 222 that is folded can be minimized, thereby improving the bending resistance of the folded sub-trace 222.
The patterned meander sub-traces shown in fig. 6-9 include, but are not limited to, photolithographic, stamping, transfer printing, and the like.
Compared with the prior art, the invention improves the pixel arrangement and solves the problems that the pixel array displays hidden black straight lines or the displayed straight lines generate saw teeth. The invention can also alleviate the problem of displayed jaggies when displaying oblique lines.
The exemplary embodiments of the present invention have been particularly shown and described above. It is to be understood that the invention is not to be limited to the disclosed embodiments, but on the contrary, is intended to cover various modifications and equivalent arrangements included within the scope of the appended claims.
Claims (3)
1. A display device, comprising:
the array substrate comprises a first surface for display and a second surface opposite to the first surface;
the flexible circuit board is positioned on the second surface of the array substrate;
a touch panel, comprising:
the touch electrode array comprises a plurality of touch electrodes, and is positioned on the first surface of the array substrate;
the touch control wiring comprises a plurality of touch control wiring lines, wherein each touch control wiring line comprises:
the first sub-wires are positioned on the first surface of the array substrate, one end of each touch wire is connected with the touch electrode, and the other ends of the first sub-wires of each touch wire are parallel to each other;
the second sub-wires are positioned on the second surface of the array substrate, one end of each second sub-wire is connected to the flexible circuit board through a connecting pad, the second sub-wires of each touch wire are parallel to each other, and each connecting pad is positioned on the second surface of the array substrate;
the bending sub-wires extend from the first sub-wires to the second sub-wires, and the bending sub-wires of the touch control wires are parallel to each other;
at least the bending sub-traces are patterned, and each bending sub-trace has a fold-line pattern;
the width of the portion of each bending sub-wire bent from the first surface to the second surface of the array substrate and/or the width of the portion of each bending sub-wire bent from the second surface to the first surface of the array substrate is the minimum width of the bending sub-wire.
2. The display device of claim 1, wherein the extending direction of the bent sub-traces is perpendicular to the first surface and the second surface of the array substrate.
3. The display device of any one of claims 1 to 2, wherein the touch panel has a touch area formed by the array of touch electrodes and a trace area, and a distance between a boundary of the touch area to a boundary of the touch panel is greater than 1.5 mm and less than 2.5 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810476690.6A CN110502137B (en) | 2018-05-17 | 2018-05-17 | display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810476690.6A CN110502137B (en) | 2018-05-17 | 2018-05-17 | display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110502137A CN110502137A (en) | 2019-11-26 |
| CN110502137B true CN110502137B (en) | 2023-10-20 |
Family
ID=68583938
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810476690.6A Active CN110502137B (en) | 2018-05-17 | 2018-05-17 | display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110502137B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106328810A (en) * | 2016-10-17 | 2017-01-11 | 武汉华星光电技术有限公司 | Flexible OLED substrate structure and the design method thereof |
| CN107004617A (en) * | 2014-12-10 | 2017-08-01 | 乐金显示有限公司 | Flexible display apparatus with bridge joint wiring track |
| CN107479752A (en) * | 2017-08-14 | 2017-12-15 | 业成科技（成都）有限公司 | Touch control display apparatus |
| CN107976725A (en) * | 2018-01-19 | 2018-05-01 | 京东方科技集团股份有限公司 | A kind of protective film and preparation method thereof, flexible panel, display device and preparation method thereof |
-
2018
- 2018-05-17 CN CN201810476690.6A patent/CN110502137B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107004617A (en) * | 2014-12-10 | 2017-08-01 | 乐金显示有限公司 | Flexible display apparatus with bridge joint wiring track |
| CN106328810A (en) * | 2016-10-17 | 2017-01-11 | 武汉华星光电技术有限公司 | Flexible OLED substrate structure and the design method thereof |
| CN107479752A (en) * | 2017-08-14 | 2017-12-15 | 业成科技（成都）有限公司 | Touch control display apparatus |
| CN107976725A (en) * | 2018-01-19 | 2018-05-01 | 京东方科技集团股份有限公司 | A kind of protective film and preparation method thereof, flexible panel, display device and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110502137A (en) | 2019-11-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107291303B (en) | Touch display panel and touch display device | |
| CN105630260B (en) | Display device including touch sensor and driving method thereof | |
| US9304348B2 (en) | Flexible display device having touch and bending sensing function | |
| TWI585629B (en) | Touch display device and handheld electronic device | |
| CN106020575B (en) | Touch panel | |
| CN107797693B (en) | Touch panel and display device including the same | |
| KR102241773B1 (en) | Touch sensor device | |
| KR102329810B1 (en) | Mesh-type electrode pattern and manufacturing method thereof, and touch panel including the same | |
| KR102271114B1 (en) | Touch sensing panel | |
| JP5439565B2 (en) | Touch panel and manufacturing method thereof | |
| CN104808879B (en) | Touch window and touch device | |
| KR102251881B1 (en) | Touch deviice | |
| KR102301502B1 (en) | Touch screen panel comprising touch sensor | |
| KR102297204B1 (en) | Touch sensor | |
| US20180323017A1 (en) | Touch window having improved electrode pattern structure | |
| CN106020523B (en) | Touch panel | |
| KR20160041608A (en) | Touch window | |
| EP2450778B1 (en) | Coordinate input device and display device having coordinate input function | |
| US9619092B2 (en) | Touch panel | |
| KR102232774B1 (en) | Touch panel and display device imcluding the same | |
| JP5472858B2 (en) | Touch switch | |
| KR20150092668A (en) | Touch window | |
| TWI630517B (en) | Touch window and touch device including the same | |
| CN112654954A (en) | Touch panel, manufacturing method thereof and electronic device | |
| KR102187705B1 (en) | Touch window and display with the same |
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 | ||
| CB02 | Change of applicant information |
Address after: 1568 Jiugong Road, Jinshan Industrial Zone, Jinshan District, Shanghai, 201506 Applicant after: Shanghai Hehui optoelectronic Co.,Ltd. Address before: 1568 Jiugong Road, Jinshan District, Shanghai, 201506 Applicant before: EVERDISPLAY OPTRONICS (SHANGHAI) Ltd. |
|
| CB02 | Change of applicant information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |