CN107256102B - Touch control display device - Google Patents
Touch control display device Download PDFInfo
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- CN107256102B CN107256102B CN201710666900.3A CN201710666900A CN107256102B CN 107256102 B CN107256102 B CN 107256102B CN 201710666900 A CN201710666900 A CN 201710666900A CN 107256102 B CN107256102 B CN 107256102B
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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
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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
-
- 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
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- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
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- General Physics & Mathematics (AREA)
- Position Input By Displaying (AREA)
- Liquid Crystal (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The invention discloses a touch display device, which comprises a first substrate, a second substrate, a touch electrode layer, a second alignment pattern and a flexible circuit board. The first substrate has a first alignment pattern. The second substrate is arranged opposite to the first substrate. The touch electrode layer is arranged on the second substrate, and the second substrate is arranged between the touch electrode layer and the first substrate. The second alignment pattern is disposed on the second substrate. The flexible circuit board is electrically connected with the touch electrode layer, wherein the flexible circuit board is provided with a third alignment pattern and a fourth alignment pattern, the third alignment pattern is arranged on the second alignment pattern, and the fourth alignment pattern is not overlapped with the second substrate and is spaced from the second substrate by a distance.
Description
The application is a divisional application of a Chinese patent application with the application date of 2013, 08 and 06 months, the application number of 201310339740.3 and the name of 'a touch display device and an alignment method thereof'.
Technical Field
The present invention relates to a touch display device, and more particularly, to a touch display device suitable for a transmissive image sensor.
Background
With the development of technology, the touch module is gradually integrated into a personal mobile device, such as a Personal Digital Assistant (PDA), a Smart Phone (Smart Phone), a satellite navigation device, etc., so that a user can operate the device by touching a screen of the mobile device, which is convenient.
Fig. 1 is a schematic cross-sectional view of a conventional package alignment device of a Touch Display Panel (Touch Display Panel). The conventional package alignment device 10 includes a Thin Film Transistor Array (TFT Array)110, a Color Filter (CF) 120, a Touch Electrode Layer (Touch Electrode Layer)130, and a Flexible Printed Circuit (FPC) 140. The color filter 120 is disposed on the tft array 110 and has a black matrix 122. The touch electrode layer 130 is disposed on the color filter 120 and has a first alignment pattern 132, and the first alignment pattern 132 is disposed on the black matrix 122. The flexible circuit board 140 is disposed on the touch electrode layer 130 and has a second alignment pattern 142, and the second alignment pattern 142 is disposed on the first alignment pattern 132.
When the package alignment is to be performed, since the first alignment pattern 132 of the touch electrode layer 130 is usually a transparent conductive material and is distributed on the black matrix 122, a reflective image sensor (CCD) must be used and located on the same plane as the touch electrode layer 130 to capture the alignment information of the first alignment pattern 132 and the second alignment pattern 142, so that the flexible circuit board 140 and the touch electrode layer 130 achieve a package alignment.
However, the conventional package alignment device 10 is not suitable for use when the image sensor is located on another plane of the tft array 110 without the touch electrode layer 130, and the conventional package alignment device 10 cannot provide the image sensor to capture the alignment information of the first alignment pattern 132 and the second alignment pattern 142.
Disclosure of Invention
The present invention is directed to a touch display device, which can precisely complete a package alignment process without increasing the number of calibration machines.
In an embodiment, the present invention provides a touch display device, which includes a first substrate, a second substrate, a touch electrode layer, a second alignment pattern, and a flexible printed circuit. The first substrate has a first alignment pattern. The second substrate is arranged opposite to the first substrate. The touch electrode layer is arranged on the second substrate, and the second substrate is arranged between the touch electrode layer and the first substrate. The second alignment pattern is disposed on the second substrate. The flexible circuit board is electrically connected with the touch electrode layer, wherein the flexible circuit board is provided with a third alignment pattern and a fourth alignment pattern, the third alignment pattern is arranged on the second alignment pattern, and the fourth alignment pattern is not overlapped with the second substrate and is spaced from the second substrate by a distance.
Preferably, the first substrate is a thin film transistor array substrate.
Preferably, the second substrate is a color filter substrate.
Preferably, at least one of the first alignment pattern, the second alignment pattern and the third alignment pattern is made of a metal material.
Preferably, the second alignment pattern is formed of ito.
Preferably, the second alignment pattern and the third alignment pattern are a trace electrode.
Preferably, the second substrate has a light-shielding region, and the second alignment pattern is disposed on the light-shielding region.
Preferably, the light-shielding region is a black matrix.
Preferably, the distance is between 0mm and 5 mm.
Preferably, the distance is between 0mm and 3.5 mm.
Drawings
FIG. 1 is a cross-sectional view of a conventional package alignment device for a touch panel;
FIG. 2 is a schematic cross-sectional view of a touch display device according to a first embodiment of the invention;
FIG. 3 is a schematic cross-sectional view of a touch display device according to a second embodiment of the present invention;
FIG. 4 is a schematic cross-sectional view of a touch display device according to a third embodiment of the present invention;
fig. 5 is a flowchart illustrating an alignment method of a touch display device according to a third embodiment of the invention.
Description of reference numerals: 10-conventional package alignment means for touch panels; 110-thin film transistor array; 120-color filters; 122-black matrix; 130-a touch electrode layer; 132-a first alignment pattern; 140-flexible circuit board; 142-a second alignment pattern; 20-a touch display device; 210-a first substrate; 220-a second substrate; 222-a light-shielding area; 224-a light-transmitting region; 226-a first alignment pattern; 230-a touch electrode layer; 240-flexible circuit board; 242 — a second alignment pattern; 250-aiming the light source; 30-a touch display device; 310-a first substrate; 312 — a first alignment pattern; 320-a second substrate; 322-shading area; 324-a light-transmitting region; 330-a touch electrode layer; 340-flexible circuit board; 342-a second alignment pattern; 350-aiming the light source; 40-a touch display device; 410-a first substrate; 412-a first alignment pattern; 420-a second substrate; 422-shading area; 430-a touch electrode layer; 432-a second alignment pattern; 440-flexible circuit board; 442-a third alignment pattern; 444-fourth alignment pattern; 450-aiming the light source; 50-alignment method of touch display device; S51-S55-step.
Detailed Description
Fig. 2 is a cross-sectional view of a touch display device 20 according to a first embodiment of the invention, which includes a first substrate 210, a second substrate 220, a touch electrode layer 230 and a flexible printed circuit 240, in which the first substrate 210 is a thin film transistor array, the second substrate 220 is a color filter, and the touch electrode layer 230 is a touch substrate, but not limited thereto. The second substrate 220 is disposed on the first substrate 210, wherein the second substrate 220 has a light-shielding region 222 and a light-transmitting region 224, and the light-transmitting region 224 further has a first alignment pattern 226. The touch electrode layer 230 is disposed on and in contact with the second substrate 220. The flexible circuit board 240 is disposed on the touch electrode layer 230, wherein the flexible circuit board 240 has a second alignment pattern 242. In an embodiment, the light-shielding region 222 may be a black matrix, the light-transmitting region 224 may be formed by an etching process or a screen printing process, and the first alignment pattern 226 may be directly formed. In another embodiment, the second alignment pattern 242 may be a trace electrode of the flexible printed circuit 240, but is not limited thereto.
When the package alignment is to be performed, a transmission image sensor is used to emit an alignment light source 250 to pass through the first substrate 210, the first alignment pattern 226 and the second alignment pattern 242 sequentially at a side of the first substrate 210 without the second substrate 220, and a first alignment pattern signal of the first alignment pattern 226 and a second alignment pattern signal of the second alignment pattern 242 are captured at a side of the first substrate 210 with the second substrate 220, and a pattern signal alignment is performed on the first alignment pattern signal and the second alignment pattern signal simultaneously, so that the flexible circuit board 240 and the touch electrode layer 230 can achieve a package alignment.
Compared to the conventional package alignment device 10, the conventional package alignment device 10 cannot be applied to the image sensor array 110 when the image sensor is located on a plane without the touch electrode layer 130, and the conventional package alignment device 10 cannot provide the image sensor with alignment information for capturing the first alignment pattern 132 and the second alignment pattern 142. In the touch display device 20 of the first embodiment, the second substrate 220 is designed to have the transparent area 224, so that the limitation that the transmission image sensor is not located on one side of the first substrate 210 without the second substrate 220 is eliminated, and the package alignment process can be accurately completed without increasing the number of additional calibration machines, thereby reducing the manufacturing cost.
Fig. 3 is a schematic cross-sectional view of a touch display device 30 according to a second embodiment of the invention, which includes a first substrate 310, a second substrate 320, a touch electrode layer 330 and a flexible printed circuit 340, in which the first substrate 310 is a thin film transistor array, the second substrate 320 is a color filter, and the touch electrode layer 330 is a touch substrate, but not limited thereto. The first substrate 310 has a first alignment pattern 312. The second substrate 320 is disposed on the first substrate 310, wherein the second substrate 320 has a light-shielding region 322 and a light-transmitting region 324, and the light-transmitting region 324 is disposed on the first alignment pattern 312. The touch electrode layer 330 is disposed on and in contact with the second substrate 320. The flexible circuit board 340 is disposed on the touch electrode layer 330, wherein the flexible circuit board 340 has a second alignment pattern 342. In an embodiment, the light shielding region 322 may be a black matrix, and the light transmitting region 324 may be formed by an etching process or a screen printing process, and in the embodiment, the first alignment pattern 312 and the second alignment pattern 342 may be a metal material, but not limited thereto. In another embodiment, the second alignment pattern 342 can be a trace electrode of the flexible circuit board 340, but not limited thereto.
When the package alignment is to be performed, an alignment light source 350 is incident to a side of the first substrate 310 without the second substrate 320 through a transmission image sensor to sequentially pass through the first alignment pattern 312, the transparent region 324 and the second alignment pattern 342, and a first alignment pattern signal of the first alignment pattern 312 and a second alignment pattern signal of the second alignment pattern 342 are captured by a side of the first substrate 310 with the second substrate 320, and a pattern signal alignment is performed on the first alignment pattern signal and the second alignment pattern signal at the same time, so that the flexible circuit board 340 and the touch electrode layer 330 can achieve a package alignment.
Fig. 4 is a schematic cross-sectional view of a touch display device 40 according to a third embodiment of the invention, which includes a first substrate 410, a second substrate 420, a touch electrode layer 430 and a flexible circuit board 440. In the present embodiment, the first substrate 410 is a thin film transistor array and the second substrate 420 is a color filter, but not limited thereto. The first substrate 410 has a first alignment pattern 412. The second substrate 420 is disposed opposite to the first substrate 410, wherein the second substrate 420 has a light-shielding region 422. The touch electrode layer 430 is disposed on and in contact with the second substrate 420, wherein the touch electrode layer 430 has a second alignment pattern 432, the second alignment pattern 432 is disposed on the light shielding region 422, and the second substrate 420 is disposed between the touch electrode layer 430 and the first substrate 410. The flexible circuit board 440 is disposed on the touch electrode layer 430, wherein the flexible circuit board 440 has a third alignment pattern 442 and a fourth alignment pattern 444, the third alignment pattern 442 is disposed on the second alignment pattern 432, and the fourth alignment pattern 444 is not overlapped with the second substrate 420 and the touch electrode layer 430 and is spaced apart from the second substrate 420 by a distance d, the distance d is between 0mm and 5mm, and an alignment is achieved when the flexible circuit board 440 and the touch electrode layer 430 are bonded. In one embodiment, the light-shielding region 422 may be a black matrix, and the first alignment pattern 412, the second alignment pattern 432 and the third alignment pattern 442 may be a metal material, and in this embodiment, the second alignment pattern 432 is ito, but not limited thereto. In another embodiment, the second alignment pattern 432 may be a trace electrode of the touch electrode layer 430, and the third alignment pattern 442 may be a trace electrode of the flexible circuit board 440, but not limited thereto.
Fig. 5 is a flowchart illustrating an alignment method 50 of a touch display device according to a third embodiment of the present invention, which includes providing a first substrate 410 having a first alignment pattern 412 in step S51. In step S52, a second substrate 420 is provided, which is disposed opposite to the first substrate 410, wherein the second substrate 420 has a light-shielding region 422. In step S53, a touch electrode layer 430 is provided and disposed on and in contact with the second substrate 420, wherein the touch electrode layer 430 has a second alignment pattern 432 disposed on the light-shielding region 422. In step S54, a flexible circuit board 440 is provided and disposed on the touch electrode layer 430, wherein the flexible circuit board 440 has a third alignment pattern 442 and a fourth alignment pattern 444, the third alignment pattern 442 is disposed on the second alignment pattern 432, and the fourth alignment pattern 442 does not overlap with the second substrate 420 and the touch electrode layer 430 and is spaced apart from the second substrate by a distance d, and the distance d is between 0mm and 5 mm. In step S55, an incident light source 450 sequentially passes through the first alignment pattern 412 and the fourth alignment pattern 444 on the side of the first substrate 410 without the second substrate 420, and a pattern signal alignment is performed on the first alignment pattern signal and the fourth alignment pattern signal by capturing a first alignment pattern signal of the first alignment pattern 412 and a fourth alignment pattern signal of the fourth alignment pattern 444, so as to achieve an alignment when the flexible circuit board 440 and the touch electrode layer 430 are bonded.
It should be noted that the fourth alignment pattern 444 is not overlapped with the second substrate 420 and the touch electrode layer 430 and is spaced apart by a distance d, so as to reduce the package alignment error caused by the bending characteristic of the flexible circuit board 440 itself, in the embodiment, when the distance d is 3.5mm, the package alignment effect with the best precision is obtained.
In comparison with the conventional package alignment device 10, the conventional package alignment device 10 cannot be applied to the image sensor array 110 when the image sensor is located on a plane without the touch electrode layer 130, and the conventional package alignment device 10 cannot provide the image sensor with the alignment information of the first alignment pattern 132 and the second alignment pattern 142. In the touch display device 40 of the present embodiment, the first substrate 410 is further designed to have the first alignment pattern 412, and the flexible printed circuit 440 is further designed to have the fourth alignment pattern 444, so that the limitation that the transmissive image sensor is located on a side of the first substrate 410 not having the second substrate 420 is not limited, and the first alignment pattern 412 and the fourth alignment pattern 444 can be directly used for a package alignment process, so that the package alignment process can be precisely completed, and the manufacturing cost can be reduced.
In summary, the touch display device and the alignment method thereof of the present invention achieve the package alignment process by designing the second substrate with the transparent region and using the transmissive image sensor in combination with the alignment electrodes of different modules, and the package alignment process can be accurately completed without increasing the number of calibration machines, thereby reducing the manufacturing cost. Or only in a specific distance outside the shading area, the transmission image sensor is respectively matched with the alignment patterns of different substrates to achieve the packaging alignment process, and the packaging alignment process can be accurately completed without additionally increasing the number of calibration machines, so that the manufacturing cost can be reduced.
The foregoing description of the invention is illustrative rather than limiting and it will be appreciated by those skilled in the art that many modifications, variations or equivalents may be made thereto without departing from the spirit and scope of the invention as defined in the claims and which fall within the true scope of the invention.
Claims (10)
1. A touch display device, comprising:
a first substrate having a first alignment pattern;
a second substrate disposed opposite to the first substrate;
a touch electrode layer disposed on the second substrate, wherein the second substrate is disposed between the touch electrode layer and the first substrate;
a second alignment pattern disposed on the second substrate; and
and the flexible circuit board is electrically connected with the touch electrode layer, and is provided with a third alignment pattern and a fourth alignment pattern, the third alignment pattern is arranged on the second alignment pattern, the fourth alignment pattern is not overlapped with the second substrate and is spaced by a distance, and the first alignment pattern and the fourth alignment pattern are aligned to realize alignment when the flexible circuit board is jointed.
2. The touch display device of claim 1, wherein the first substrate is a thin film transistor array substrate.
3. The touch display device of claim 1, wherein the second substrate is a color filter substrate.
4. The touch display device of claim 1, wherein at least one of the first alignment pattern, the second alignment pattern, and the third alignment pattern is made of a metal material.
5. The touch display device of claim 1, wherein the second alignment pattern is formed of ITO.
6. The touch display device of claim 1, wherein the second alignment pattern and the third alignment pattern are trace electrodes.
7. The touch display device of claim 1, wherein the second substrate has a light-shielding region, and the second alignment pattern is disposed on the light-shielding region.
8. The touch display device of claim 7, wherein the light-shielding region is a black matrix.
9. The touch display device of claim 1, wherein the distance is between 0mm and 5 mm.
10. The touch display device of claim 1, wherein the distance is between 0mm and 3.5 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710666900.3A CN107256102B (en) | 2013-08-06 | 2013-08-06 | Touch control display device |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710666900.3A CN107256102B (en) | 2013-08-06 | 2013-08-06 | Touch control display device |
| CN201310339740.3A CN104345946B (en) | 2013-08-06 | 2013-08-06 | Touch control display apparatus and its alignment methods |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310339740.3A Division CN104345946B (en) | 2013-08-06 | 2013-08-06 | Touch control display apparatus and its alignment methods |
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| CN107256102A CN107256102A (en) | 2017-10-17 |
| CN107256102B true CN107256102B (en) | 2021-04-20 |
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| CN201710666900.3A Active CN107256102B (en) | 2013-08-06 | 2013-08-06 | Touch control display device |
| CN201310339740.3A Active CN104345946B (en) | 2013-08-06 | 2013-08-06 | Touch control display apparatus and its alignment methods |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2016154830A1 (en) * | 2015-03-27 | 2016-10-06 | 深圳市柔宇科技有限公司 | Touch screen module and manufacturing method therefor |
| KR102296074B1 (en) * | 2017-05-19 | 2021-08-31 | 삼성디스플레이 주식회사 | Display device and manufacturing method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2005502103A (en) * | 2001-04-13 | 2005-01-20 | スリーエム イノベイティブ プロパティズ カンパニー | Touch screen with rotationally separated force sensor |
| US7609512B2 (en) * | 2001-11-19 | 2009-10-27 | Otter Products, Llc | Protective enclosure for electronic device |
| CN101639737B (en) * | 2008-07-28 | 2012-05-09 | 深圳市德普特光电显示技术有限公司 | Touch screen manufacturing method |
| KR101097306B1 (en) * | 2009-03-30 | 2011-12-23 | 삼성모바일디스플레이주식회사 | Display apparatus comprising the alignment mark |
| CN102053745A (en) * | 2009-10-27 | 2011-05-11 | 元太科技工业股份有限公司 | Touch structure and touch display device comprising same |
| US9360897B2 (en) * | 2010-09-29 | 2016-06-07 | Dai Nippon Printing Co., Ltd | Touchscreen panel sensor film and manufacturing method thereof |
| TWI452386B (en) * | 2011-03-18 | 2014-09-11 | Au Optronics Corp | Touch display device, touch panel and manufacturing method thereof |
| TWI483035B (en) * | 2012-10-01 | 2015-05-01 | Au Optronics Corp | Display panel |
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| Publication number | Publication date |
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| CN104345946A (en) | 2015-02-11 |
| CN107256102A (en) | 2017-10-17 |
| CN104345946B (en) | 2017-08-29 |
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