CN108268176B - Circuit layout structure suitable for narrow-frame touch panel - Google Patents
Circuit layout structure suitable for narrow-frame touch panel Download PDFInfo
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- CN108268176B CN108268176B CN201810140433.5A CN201810140433A CN108268176B CN 108268176 B CN108268176 B CN 108268176B CN 201810140433 A CN201810140433 A CN 201810140433A CN 108268176 B CN108268176 B CN 108268176B
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- 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
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
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- 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
- G06F2203/04103—Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
Abstract
The invention provides a circuit layout structure suitable for a narrow-frame touch panel, which utilizes a buffer area between a frame ink area and a visible area (touch function area) to set transparent circuit wiring and discloses a technology for setting the transparent circuit wiring in the visible area so as to reduce the number of metal circuit wiring in the frame ink area. The touch panel changes the circuit wiring design of the original touch panel, effectively reduces the number of metal circuit wirings in the frame ink area, can reduce the manufacturing cost and has a narrow frame effect.
Description
Technical Field
The present invention relates to the field of touch display devices, and more particularly, to a touch panel with a narrow frame effect by changing the layout of internal touch circuit traces.
Background
The touch panel is widely applied to the external input interface of the instrument due to the characteristics of man-machine interaction and design diversification. In recent years, as consumer electronics have been widely used, there are more and more products that combine a touch function with a display, such as a mobile phone (mobile phone), a satellite navigation system (GPS navigator system), a tablet PC (tablet PC), and a notebook PC (laptop PC).
With the development of technology, people have higher and higher quality requirements for electronic products, and under the strong competition, electronic manufacturers are increasingly aiming at beauty, lightness, thinness and narrowness, and meanwhile, the larger the liquid crystal screen is, the better the liquid crystal screen is. Generally, the peripheral frame region around the lcd has no display effect, and the presence of the peripheral frame region also affects the visual aesthetic effect, so electronic manufacturers are dedicated to developing the peripheral frame shrinking technology.
Fig. 1 is a schematic view of a conventional touch structure. A typical touch structure generally includes a visible area including two touch electrodes (Rx, Tx) and a frame ink area for disposing circuit traces 4a and 5a of the two touch electrodes. In order to achieve the effect of narrow frame, circuit trace shrinking technology is mostly adopted at present, however, the minimization of the frame area has practical limitations, the circuit trace shrinking has reached 10/10 level at present, and if circuit shrinking is pursued, high manufacturing cost is required, which is not in accordance with economic benefit. In addition, manufacturers have proposed a technique for bending the edge of the sensing electrode, but the bending region is still subject to the problems of poor adhesion and tolerance during bending due to the stress of itself, and thus the improvement is still needed.
Disclosure of Invention
The main purpose of the present invention is to improve the problems encountered in the current touch panel frame shrinking technology. In order to achieve the above object, the present invention provides a circuit layout structure for a narrow-frame touch panel, formed on a conductive layer of the narrow-frame touch panel, the conductive layer including a visible area, an ink area and a pad area, the ink area surrounding the visible area, the ink area including a buffer area and a metal routing area separated by an electrode boundary line, the pad area being disposed along an edge of the conductive layer, the circuit layout structure including: a first electrode area, a plurality of metal wires, a second electrode area, a plurality of visible area wires, a third electrode area and a plurality of second visible area wires. The first electrode area comprises a plurality of first sensing electrodes arranged along a first direction, and the plurality of first sensing electrodes are arranged in the visible area and partially extend to the electrode boundary line. The plurality of metal wires are arranged in the metal wire area and used for being in electrical connection with the plurality of first sensing electrodes and leading out the touch signals to the pin area. The second electrode area comprises a plurality of second induction electrodes arranged along the first direction, and the plurality of second induction electrodes are arranged in the visible area and partially extend to the buffer area. The plurality of visible area wires are arranged in the buffer area and used for being in electrical communication with the plurality of second sensing electrodes and leading out the touch signals to the pin area. The third electrode area is arranged in the visual area and comprises a plurality of third induction electrodes arranged along the first direction, wherein the third induction electrodes are composed of a plurality of induction blocks, and a gap is formed between every two adjacent induction blocks. The plurality of second visible area wires are in electrical connection with the plurality of sensing blocks, and the touch signals are led out to the pin area through the gap.
In a preferred embodiment of the present invention, the first electrode region is located on a side of the conductive layer away from the pin region, the third electrode region is located on a side of the conductive layer close to the pin region, and the second electrode region is located between the first electrode region and the third electrode region.
In a preferred embodiment of the present invention, the circuit layout structure further includes a transparent insulating structure disposed in the buffer region.
In a preferred embodiment of the present invention, the visible area traces and the second visible area traces are transparent traces.
In a preferred embodiment of the present invention, the second viewing area traces are arranged along a second direction, and the second direction is perpendicular to the first direction.
In a preferred embodiment of the present invention, the length of the second sensing electrode is shorter than that of the first sensing electrode, and the length of the third sensing electrode does not exceed the visible region.
In another embodiment of the present invention, a circuit layout structure for a narrow-bezel touch panel is formed on a conductive layer of the narrow-bezel touch panel, the conductive layer including a visible area, an ink area surrounding the visible area, and a pad area, the ink area including a buffer area and a metal routing area separated by an electrode boundary line, the pad area being disposed along an edge of the conductive layer, the circuit layout structure comprising: a first electrode area, a plurality of metal wires, a second electrode area, a plurality of visible area wires, a third electrode area and a plurality of second visible area wires. The first electrode area comprises a plurality of first sensing electrodes arranged along a first direction, and the plurality of first sensing electrodes are arranged in the visible area and partially extend to the electrode boundary line. The metal routing is arranged in the metal routing area and is used for being in electrical communication with the plurality of first sensing electrodes and leading out touch signals to the pin area. The second electrode area comprises a plurality of second sensing electrodes arranged along the first direction, and the plurality of second sensing electrodes are arranged in the visible area and partially extend to the buffer area. The visible area is wired in the buffer area and is in electrical connection with the plurality of second sensing electrodes, and the touch signals are led out to the pin area. The third electrode region is arranged in the visual area and comprises a plurality of third induction electrodes arranged along the first direction. The plurality of second visible area wires are in electrical communication with the plurality of third sensing electrodes to lead out the touch signals to the pin area, wherein the plurality of second visible area wires are arranged along a second direction, and an isolation layer is arranged at the overlapping intersection of the second visible area wires and the third sensing electrodes to isolate the second visible area wires from the third sensing electrodes.
In another embodiment of the present invention, a transparent insulating structure is disposed between the plurality of second sensing electrodes and the second viewing area trace.
In another embodiment of the present invention, the second viewing area traces are arranged along the second direction, and the second direction is perpendicular to the first direction.
Drawings
FIG. 1 is a schematic view of a sensing electrode of a prior art touch panel.
Fig. 2 is a first schematic view of a stacked structure of a touch structure in a preferred embodiment of a circuit layout structure for a narrow-bezel touch panel according to the present invention.
Fig. 3 is a schematic diagram of a lamination structure of a touch structure in a preferred embodiment of a circuit layout structure for a narrow-bezel touch panel according to the present invention.
Fig. 4 is a schematic diagram of a conductive layer circuit layout suitable for a circuit layout structure of a narrow-bezel touch panel according to a preferred embodiment of the present invention.
Fig. 5 is a schematic diagram of a conductive layer circuit layout suitable for a second embodiment of a circuit layout structure of a narrow-bezel touch panel according to the present invention.
Reference numerals:
cover plate 1
First conductive layer 2
The first electrode regions 21,21a
Sensing electrodes 231,232,233,234
Second conductive layer 3
Second viewing zone routing 43,43a
Tracks 431,432,433
First transparent substrate 61
Second transparent substrate 62
Ink zones 72,82a
Buffer 721,721a
Metal routing area 722,722a
Transparent insulating structure 8,8a
Insulating layer 81
Touch electrodes Rx, Tx
Detailed Description
To achieve the above objects and advantages, the technical means and structure adopted by the present invention are described in detail with reference to the following drawings for fully understanding the preferred embodiments of the present invention, but it should be noted that the contents do not limit the present invention.
Fig. 2, fig. 3 and fig. 4 are a first schematic diagram of a touch structure layer structure, a second schematic diagram of a touch structure layer structure and a conductive layer circuit layout diagram of a preferred embodiment of a circuit layout structure for a narrow-bezel touch panel according to the present invention. The invention relates to a circuit layout structure suitable for a narrow-frame touch panel, which is applied to a touch panel and is formed on one conducting layer of the touch panel. The touch structure of a typical touch panel generally includes: a cover plate 1, a first conductive layer 2 and a second conductive layer 3.
The first conductive layer 2 can be disposed on a surface of a first transparent substrate 61 and attached to the cover plate 1 through an optical adhesive 63. The first conductive layer 2 is an indium tin oxide film with good conductivity and light transmittance.
The second conductive layer 3, which may also be an ito film, is disposed on a second transparent substrate 62 and attached to the first transparent substrate 61 through an optical adhesive 64, as shown in fig. 2. But not limited thereto, the second conductive layer 3 can also be disposed on the other surface of the first transparent substrate 61, such as the touch structure shown in fig. 3. In the present embodiment, the first conductive layer 2 is provided with a sensing line (Rx), and the second conductive layer 3 is provided with a driving line (Tx).
The touch panel is viewed from the front of the cover 1, the touch panel is divided into a visible area 71(V/a), an ink area 72 and a pin area 74, the ink area 72 surrounds the visible area 71, the ink area 72 defines a buffer area 721 and a metal routing area 722, the buffer area 721 and the metal routing area 722 are separated by an electrode boundary 73, and the pin area 74 is disposed along an edge of the first conductive layer 2. The pad 74 is a sensing line pad of an Integrated Circuit (IC).
When the process of the frame ink area of the touch panel is performed, a tolerance range area is set in consideration of errors of machine and positioning, the tolerance range area is the buffer area 721, transparent circuit traces are used inside the buffer area 721, transparent circuit traces or opaque metal traces are used outside the buffer area 721 (i.e., the metal trace area 722), and the two areas are separated by the electrode boundary line 73. In a preferred embodiment of the present invention, the width of the buffer area 721 is 0.5 millimeters (mm).
The circuit layout structure suitable for the narrow-frame touch panel of the present invention can be formed on any one of the conductive layers, for example, the first conductive layer 2, and the circuit layout structure mainly includes: a first electrode region 21, a plurality of metal traces 41, a second electrode region 22, a plurality of visible region traces 42, a third electrode region 23, and a plurality of second visible region traces 43.
The first electrode region 21 is located on a side of the first conductive layer 2 away from the pin region 74, and includes a plurality of first sensing electrodes arranged along a first direction 91, and the plurality of first sensing electrodes are disposed in the visible region 71 and partially extend to the electrode boundary line 73.
The metal trace 41 is disposed in the metal trace area 722 for electrically connecting with the plurality of first sensing electrodes and guiding the touch signal to the pad area 74. The sensing electrode of the first electrode region 21 is electrically connected to the metal trace 41, which is a common connection method of a general touch panel, and the connection method is applied to the first electrode region 21 far away from the pin region 74.
The second electrode regions 22 are located between the first electrode regions 21 and the third electrode regions 23, and include a plurality of second sensing electrodes arranged along the first direction 91, disposed in the viewing region 71 and partially extending to the buffer region 721. Preferably, the sensing electrode of the second electrode region 22 is partially retracted from the electrode boundary line 73 and has a shorter length than the sensing electrode of the first electrode region 21.
The visible area trace 42 is disposed in the buffer area 721, and is used for electrically connecting with the plurality of second sensing electrodes to lead out the touch signal to the pad area 74. The viewing area trace 42 is disposed along a second direction 92, and the second direction 92 is substantially perpendicular to the first direction 91. In an embodiment of the present invention, a transparent insulating structure 8 is disposed between the second electrode regions 22 and the visible region traces 42 to avoid electromagnetic interference.
The third electrode regions 23 are disposed in the visible region 71 and located on a side of the first conductive layer 2 near the pin region 74, and the third electrode regions 23 include a plurality of third sensing electrodes arranged along the first direction 91, and preferably, the length of the sensing electrodes of the third electrode regions 23 does not exceed the boundary of the visible region 71. The third sensing electrode is composed of a plurality of sensing blocks, and a gap is formed between every two adjacent sensing blocks.
The sensing electrodes of the third electrode region 23 have a segmented structure, and the same sensing electrode is divided into a plurality of blocks, and the plurality of blocks are electrically connected through the second visible region wiring 43. Any one of the second viewing zone traces 43 is electrically connected to only one sensing electrode of the third electrode zone 23, and the second viewing zone trace 43 is disposed substantially along the second direction 92 and perpendicular to the arrangement direction of the sensing electrodes of the third electrode zone 23, so as to transmit the sensing signal to the pin zone 74.
The second visible area trace 43 is electrically connected to the plurality of sensing blocks, and leads out the touch signal to the pad area 74 through the gap. An insulating layer 81 is disposed at the intersection of any two second visible region traces 43, so that the sensing electrodes of the third electrode regions 23 are electrically independent and do not interfere with each other. For the preferred embodiment, the sensing electrode structure of the third electrode region 23 shown in fig. 4 includes an unsegmented sensing electrode 231, a sensing electrode 232 divided into two blocks, and a sensing electrode 233 divided into four blocks, wherein the unsegmented sensing electrode 231 transmits signals through the trace 431, the sensing electrode 232 divided into two blocks transmits signals through the trace 432, and the sensing electrode 233 divided into four blocks transmits signals through the trace 433.
It should be noted that, since the visible area trace 42 is located in the buffer area 721, the second visible area trace 43 is located in the visible area 71, and both areas have the requirement of being transparent to the vision, both of the two traces are ito transparent traces.
Furthermore, considering the problem that the ito traces have a higher impedance than the normal metal traces and thus have a larger line width, in an embodiment of the present invention, the visible area trace 42 and the second visible area trace 43 are a mixed line structure, a portion of the trace in the visible area 71 is a transparent trace, and a portion of the trace in the ink area 72 is a metal trace, so that the manufacturing cost can be effectively reduced.
Fig. 5 is a schematic diagram of a conductive layer circuit layout of a second embodiment of a circuit layout structure for a narrow-bezel touch panel according to the present invention. The second embodiment of the present invention discloses a circuit layout structure suitable for a narrow-frame touch panel, which is formed on a conductive layer 2a, the conductive layer 2a includes a visible area 71a, an ink area 72a and a pad area 74a, the ink area 72a surrounds the visible area 71a, the ink area 72a includes a buffer area 721a and a metal routing area 722a separated by an electrode boundary 73a, the pad area 74a is disposed along an edge of the conductive layer 2a, the circuit layout structure includes: a first electrode region 21a, a plurality of metal traces 41a, a second electrode region 22a, a plurality of viewing zone traces 42a, a third electrode region 23a and a plurality of second viewing zone traces 43 a.
The first electrode regions 21a include a plurality of first sensing electrodes arranged along a first direction 91, which are disposed in the visible region 71a and partially extend to the electrode boundary line 73 a.
The metal trace 41a is disposed in the metal trace area 722a for electrically connecting with the plurality of first sensing electrodes to lead out the touch signal to the pad area 74 a.
The second electrode regions 22a include a plurality of second sensing electrodes arranged along the first direction 91, the plurality of second sensing electrodes being disposed in the visible region 71a and partially extending to the buffer region 721 a.
The visible area trace 42a is disposed in the buffer area 721a for electrically connecting with the plurality of second sensing electrodes to lead out the touch signal to the pad area 74 a.
The third electrode regions 23a are disposed in the visible region 71a and include a plurality of third sensing electrodes arranged along the first direction 91.
The second visible area trace 43a is in electrical communication with the plurality of sensing blocks, and guides the touch signal to the pad area 74a, wherein the plurality of second visible area traces 43a are arranged along a second direction 92, and an isolation layer 82 is disposed at an overlapping intersection of the second visible area trace 43a and the third sensing electrode to isolate the second visible area trace 43a from the third sensing electrode.
In an embodiment of the present invention, a transparent insulating structure 8a is disposed between the plurality of second sensing electrodes and the second viewing zone trace 43 a.
In an embodiment of the invention, the second viewing area traces 43a are arranged along the second direction 92, and the second direction 92 is perpendicular to the first direction 91.
As described above, the structure of the second embodiment of the present invention is similar to that of the preferred embodiment of the present invention, except that the sensing electrodes of the third electrode regions 23a are not provided with a segmented structure, but the sensing electrodes (234,235) are provided with an isolation layer 82 at the intersections of the second viewing zone traces 43a, so that the sensing electrodes of the third electrode regions 23a are electrically independent and do not interfere with each other.
Therefore, referring to all the drawings, the circuit layout structure for a narrow-frame touch panel provided by the present invention utilizes the technology of arranging transparent circuit traces in the buffer area between the frame ink area and the visible area and arranging indium tin oxide traces in the visible area, so as to effectively reduce the number of metal circuit traces in the frame ink area, and successfully achieve a touch panel with low manufacturing cost and a narrow-frame effect.
Through the above detailed description, it is fully evident that the objects and effects of the present invention are advanced by practice, and have industrial applicability, and are fully in line with the patent requirements of the invention and the appended claims. While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention.
Claims (9)
1. A circuit layout structure suitable for a narrow-frame touch panel is formed on a conductive layer of the narrow-frame touch panel, and is characterized in that the conductive layer comprises a visible area, an ink area and a pin area, the ink area surrounds the visible area, the ink area comprises a buffer area and a metal wiring area which are separated by an electrode boundary line, and the pin area is arranged along an edge of the conductive layer, the circuit layout structure comprises:
a first electrode region including a plurality of first sensing electrodes arranged along a first direction, the plurality of first sensing electrodes being disposed in the visible region and partially extending to the electrode boundary line;
a plurality of metal wires arranged in the metal wire area and used for being in electrical connection with the plurality of first sensing electrodes and leading out touch signals to the pin area;
a second electrode region including a plurality of second sensing electrodes arranged along the first direction, the plurality of second sensing electrodes being disposed in the visible region and partially extending to the buffer region;
a plurality of visible area wires arranged in the buffer area and used for being in electrical communication with the plurality of second sensing electrodes and leading out touch signals to the pin area;
a third electrode area arranged in the visible area and including a plurality of third sensing electrodes arranged along the first direction, wherein the third sensing electrodes are composed of a plurality of sensing blocks, and a gap is formed between two adjacent sensing blocks; and
the plurality of second visible area wires are in electrical connection with the plurality of sensing blocks and lead out the touch signals to the pin area through the gap.
2. The layout structure of claim 1, wherein the first electrode region is located on a side of the conductive layer away from the pad region, the third electrode region is located on a side of the conductive layer close to the pad region, and the second electrode region is located between the first electrode region and the third electrode region.
3. The layout structure of claim 1, further comprising a transparent insulating structure disposed in the buffer area.
4. The circuit layout structure for a narrow-bezel touch panel as claimed in claim 1, wherein the visible region traces and the second visible region traces are transparent traces.
5. The circuit layout structure for a narrow-bezel touch panel as claimed in claim 1, wherein the second viewing area traces are arranged along a second direction, the second direction being perpendicular to the first direction.
6. The layout structure of claim 1, wherein the second sensing electrode is shorter than the first sensing electrode, and the third sensing electrode is no longer than the viewing area.
7. A circuit layout structure suitable for a narrow-frame touch panel is formed on a conductive layer, the conductive layer comprises a visible area, an ink area and a pin area, the ink area surrounds the visible area, the ink area comprises a buffer area and a metal wiring area which are separated by an electrode boundary line, the pin area is arranged along one edge of the conductive layer, the circuit layout structure comprises:
a first electrode region including a plurality of first sensing electrodes arranged along a first direction, the plurality of first sensing electrodes being disposed in the visible region and partially extending to the electrode boundary line;
a plurality of metal wires arranged in the metal wire area and used for being in electrical connection with the plurality of first sensing electrodes and leading out touch signals to the pin area;
a second electrode region including a plurality of second sensing electrodes arranged along the first direction, the plurality of second sensing electrodes being disposed in the visible region and partially extending to the buffer region;
a plurality of visible area wires which are in electrical communication connection with the plurality of second sensing electrodes in the buffer area and lead out the touch control signals to the pin area;
a third electrode region arranged in the visible region and including a plurality of third sensing electrodes arranged along the first direction; and
and a plurality of second visible area wires in electrical communication with the plurality of third sensing electrodes for guiding the touch signal to the pin area, wherein the plurality of second visible area wires are arranged along a second direction, and an isolation layer is arranged at the overlapping intersection of the second visible area wires and the third sensing electrodes for isolating the second visible area wires from the third sensing electrodes.
8. The circuit layout structure for a narrow-bezel touch panel as claimed in claim 7, wherein a transparent insulating structure is disposed between the plurality of second sensing electrodes and the second viewing zone trace.
9. The circuit layout structure for a narrow bezel touch panel as claimed in claim 7, wherein the second viewing area traces are arranged along the second direction, and the second direction is perpendicular to the first direction.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810140433.5A CN108268176B (en) | 2018-02-11 | 2018-02-11 | Circuit layout structure suitable for narrow-frame touch panel |
| TW107105045A TWI650701B (en) | 2018-02-11 | 2018-02-12 | Line layout device suitable for narrow frame touch panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810140433.5A CN108268176B (en) | 2018-02-11 | 2018-02-11 | Circuit layout structure suitable for narrow-frame touch panel |
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| CN108268176A CN108268176A (en) | 2018-07-10 |
| CN108268176B true CN108268176B (en) | 2020-10-30 |
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| CN201810140433.5A Active CN108268176B (en) | 2018-02-11 | 2018-02-11 | Circuit layout structure suitable for narrow-frame touch panel |
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| TW (1) | TWI650701B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109491546B (en) * | 2018-12-25 | 2020-12-25 | 武汉华星光电半导体显示技术有限公司 | Narrow-frame touch panel and manufacturing method thereof |
| KR102599075B1 (en) * | 2019-05-28 | 2023-11-07 | 주식회사 엘엑스세미콘 | Apparatus and system for sensing touch or proximity of an external object |
| TWI721785B (en) * | 2020-02-18 | 2021-03-11 | 凌巨科技股份有限公司 | Integrated touch device |
| CN111708466B (en) * | 2020-07-28 | 2023-04-14 | 武汉天马微电子有限公司 | Touch display panel and display device |
| CN112181198B (en) * | 2020-09-25 | 2022-12-02 | 业成科技（成都）有限公司 | Touch module and electronic equipment |
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| KR102448570B1 (en) * | 2015-02-03 | 2022-09-28 | 삼성디스플레이 주식회사 | Touch panel and method for manufacturing the same |
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| CN103631457A (en) * | 2012-08-27 | 2014-03-12 | 比亚迪股份有限公司 | Capacitive touch screen and preparing method thereof |
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Also Published As
| Publication number | Publication date |
|---|---|
| TW201935216A (en) | 2019-09-01 |
| CN108268176A (en) | 2018-07-10 |
| TWI650701B (en) | 2019-02-11 |
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