TWI570474B - Display structure for sensing control point and method for manufacturing the same - Google Patents

Display structure for sensing control point and method for manufacturing the same Download PDF

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Publication number
TWI570474B
TWI570474B TW102148943A TW102148943A TWI570474B TW I570474 B TWI570474 B TW I570474B TW 102148943 A TW102148943 A TW 102148943A TW 102148943 A TW102148943 A TW 102148943A TW I570474 B TWI570474 B TW I570474B
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TW
Taiwan
Prior art keywords
substrate
region
control point
layer
point sensing
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Application number
TW102148943A
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Chinese (zh)
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TW201525565A (en
Inventor
胡師賢
魏一峰
莊堯智
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新益先創科技股份有限公司
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Priority to TW102148943A priority Critical patent/TWI570474B/en
Publication of TW201525565A publication Critical patent/TW201525565A/en
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Description

Control point sensing display structure and manufacturing method thereof

The present invention relates to a control point sensing display structure and a manufacturing method thereof, and more particularly to a related structure applied to a touch liquid crystal display and a manufacturing method thereof.

According to different manufacturing methods, the touch display panel can be divided into three types: Out-Cell, On-Cell, and In-Cell. The On-Cell technology uses a reticle lithography-etching process to directly complete the surface of the upper glass substrate of the display panel.

Referring to FIG. 1 , it is a cross-sectional view of a touch display panel completed by an On-Cell technology on a conventional panel, which includes a display panel 10 , and a display glass 10 is provided with a lower glass substrate 101 and upper The glass substrate 102 and the lower glass substrate 101 are completed with a thin film transistor array (not shown in this figure) and an associated circuit (not shown in the drawing), and a liquid crystal molecule for changing light characteristics is packaged with the upper glass substrate 102 ( This figure is not shown), and the On-Cell technology uses a touch sensor layer 109 on the surface 1020 of the upper glass substrate 102.

However, as the touch display panel is reduced in size, the winding and the contact pad area that can be utilized by the touch sensing layer 109 are reduced, and the size of the touch display panel is large, which will cause the signal of the touch sensing layer 109. The number of wires has increased greatly. These restrictions will cause difficulties in the manufacture of touch display panels. How to improve these defects is the main purpose of the development of this case.

The present invention provides a control point sensing display structure, comprising: a first substrate on which a first area and a second area are defined; a second substrate on which a third area and a fourth area are defined, the first substrate The first area and the third area of the second substrate overlap each other to form an accommodating space, and the second area of the first substrate protrudes from the edge of the second substrate, and the fourth area of the second substrate protrudes An edge of the first substrate; a display device layer disposed in the accommodating space; and a control point sensing device layer disposed in the first region of the first substrate and extending into the second region and/or disposed And in the third region of the second substrate and extending into the fourth region.

The invention also provides a method for manufacturing a control point sensing display, comprising the steps of: providing a control point sensing function display panel, comprising a first mother substrate and a second mother substrate, the surface of the first mother substrate Or a surface of the second mother substrate is formed with a control point sensing device layer; separating the first mother substrate in the display panel to form a plurality of first substrates having a first region and a second region; and separating the Forming, by the second mother substrate in the display panel, a plurality of second substrates having a third region and a fourth region, wherein the first region of the first substrate and the third region of the second substrate overlap each other to form a second substrate The accommodating space has a display device layer, and the second region of the first substrate protrudes from the edge of the second substrate, the first a fourth region of the second substrate protrudes from an edge of the first substrate, and the separated control point sensing device layer is located in the first region of the first substrate and extends into the second region and/or is located at the edge The third region of the second substrate extends into the fourth region.

The present invention further provides a control point sensing display structure, comprising: a first substrate having a first region and a second region defined thereon; a second substrate having a third region defined thereon, the first substrate An area and the third area of the second substrate overlap each other to form an accommodating space, and the second area of the first substrate protrudes from the edge of the second substrate; the display device layer is disposed in the accommodating space; And a control point sensing device layer disposed in the first region of the first substrate and extending into the second region.

According to the above concept, the control point sensing display structure and the manufacturing method thereof are described in the present invention, wherein the first substrate and the second substrate are both transparent glass substrates, and a compartment wall structure is disposed therebetween to surround the accommodating space. The display device layer comprises a color filter, a liquid crystal layer and a thin film transistor array.

According to the above concept, the control point sensing display structure and the manufacturing method thereof are described in the present invention, wherein the second area of the first substrate and the fourth area of the second substrate are rectangular, respectively located on opposite sides of the accommodating space.

According to the above concept, the control point sensing display structure and the manufacturing method thereof are described in the present invention, wherein the second area of the first substrate and the fourth area of the second substrate are L-shaped, respectively located on opposite sides of the accommodating space .

According to the above concept, the control point sensing display structure and the manufacturing method thereof are described in the present invention, wherein the control point sensing device layer comprises a touch unit The array and the outer winding layer are disposed on the surface of the third area of the second substrate, and the outer winding layer is disposed on the surface of the fourth area of the second substrate.

According to the above concept, the control point sensing display structure and the manufacturing method thereof are described in the present invention, wherein the first substrate is cut using a lower roller cutter, and the second substrate is cut using an upper roller cutter.

10‧‧‧ display panel

101‧‧‧Lower glass substrate

102‧‧‧Upper glass substrate

109‧‧‧Touch sensing layer

1020‧‧‧Upper glass substrate surface

2‧‧‧Display with control point sensing

21‧‧‧First substrate

22‧‧‧second substrate

211‧‧‧ first area

212‧‧‧Second area

221‧‧‧ third area

222‧‧‧ fourth area

20‧‧‧ accommodating space

23‧‧‧Display device layer

230‧‧‧Color filters

231‧‧‧Liquid layer

232‧‧‧Thin Film Array

233‧‧‧Interval wall construction

2321‧‧‧ signal line

2322‧‧‧Wiring pads

24‧‧‧Control point sensing device layer

241‧‧‧Touch unit array

242‧‧‧External winding layer

25, 26‧‧‧ polarizing plate

40‧‧‧Control panel with control point sensing function

401‧‧‧First mother substrate

402‧‧‧Second mother substrate

4021‧‧‧ cutting line

4022‧‧‧ cutting line

41‧‧‧Upper roller cutter

42‧‧‧ lower roller cutter

FIG. 1 is a cross-sectional view of a touch display panel completed by an on-cell technology on a conventional panel.

FIG. 2 is a schematic cross-sectional view showing the structure of the display with the control point sensing function completed in the present invention.

FIG. 3A is a top plan view showing the first example of the first substrate and the second substrate in the display configuration with the control point sensing function developed in the present invention.

FIG. 3B is a top view showing a second shape of the first substrate and the second substrate in the display configuration with the control point sensing function developed in the present invention.

Figure 4 is a schematic diagram showing the cutting steps of the display construction with control point sensing function developed in the present invention.

FIG. 5 is a schematic cross-sectional view showing another display structure of the control point sensing function completed in the present invention.

FIG. 6A is a top plan view showing a third example shape of the first substrate and the second substrate in the display configuration with the control point sensing function developed in the present invention.

Figure 6B, which is developed in this case for the display function with control point sensing A schematic view of a fourth shape of the first substrate and the second substrate in the display configuration.

2 is a schematic cross-sectional view of a display having a control point sensing function completed in the present invention. The display 2 having a control point sensing function includes a first substrate 21 and a second substrate 22 on the first substrate 21. A first region 211 and a second region 212 are defined, and a third region 221 and a fourth region 222 are defined on the second substrate 22, and the first region 211 of the first substrate 21 and the third region 221 of the second substrate 22 are mutually The accommodating space 20 is disposed in the accommodating space 20, and the display device layer 23 can be a common liquid crystal display layer or other flat display device, such as an organic luminescent layer or an electrophoretic display layer. Device. For example, the liquid crystal display layer 23 includes a color filter 230, a liquid crystal layer 231, and a thin film transistor array 232. The thin film transistor array 232 is disposed in the first region 211 of the first substrate 21. The color filter 230 is disposed on the inner surface of the second substrate 22, and the liquid crystal layer 231 is filled in the accommodating space 20 and surrounded by the partition wall structure 233.

Furthermore, the second region 212 of the first substrate 21 protrudes from the edge of the second substrate 22, and the fourth region 222 of the second substrate 22 protrudes from the edge of the first substrate 21. The signal line 2321 and the wiring pad 2322 extending from the thin film transistor array 232 are disposed on the inner surface of the second region 212 of the first substrate 21. The control point sensing device layer 24 is disposed in the third region 221 of the second substrate 22 and extends into the fourth region 222. For example, the control point sensing device layer 24 includes a touch unit array 241 and an outer winding layer 242 disposed on the outer surface of the third region 221 of the second substrate 22 . The outer winding layer 242 is disposed on the outer surface of the fourth region 222 of the second substrate 22. As a result, even if the size of the touch display is increased upward, the fourth area 222 of the second substrate 22 as shown will provide a larger area. The outer winding layer 242 is utilized, so that the problems encountered in the conventional means can be overcome. Of course, in the outer surface of the fourth region 222 of the second substrate 22, in addition to the external winding layer 242, a control wafer (not shown) associated with the touch unit array 241 may be disposed on the first surface. The outer surface of the fourth region 222 of the second substrate 22 is used to meet the packaging requirements of the chip on glass (COG).

Taking the common size as an example, the width of the newly added fourth region 222 is about 7 millimeters (mm), which is much larger than the width of the winding area (about 2 mm) in the conventional structure, if the signal line The width and line spacing are each 20 micrometers (μm), and then the wiring pad (not shown) is deducted by at least 1.2 mm. The conventional structure is only available for winding at 0.8 mm, allowing approximately 20 signal lines to pass side by side. However, if calculated in the case of 7 mm (mm) of the case, the wiring pad (not shown) is deducted at least 1.2 mm, and the structure of the case still has 5.8 mm for winding, which can make hundreds of signal lines side by side. Through, it can effectively improve the lack of customary structures. The touch unit array 241 can be a common two-dimensional capacitive sensing touch unit array, which is mainly composed of two sets of sensing pads arranged in a horizontal direction and a vertical direction, and two sets of sensing pads are insulated at mutually staggered portions. The material isolates the two to form a capacitor. Of course, it can also be a one-dimensional capacitive sensing touch unit array or a 1.5-dimensional capacitive sensing touch unit array. The touch unit array 241 and the winding outer winding layer 242 may use a transparent conducting oxide (TCO), such as common indium tin oxide (In2O3:Sn, referred to as ITO) or doped aluminum. Zinc oxide film (Al-doped ZnO; AZO for short), or metal conductive material, can be formed by lithography, laser engraving or screen printing.

In addition, the display device layer 23 completed by the liquid crystal display layer needs to be provided with two upper and lower polarizing plates 25 and 26 for normal operation, but other types. The display device does not necessarily require the arrangement of the polarizing plates 25, 26.

Referring to FIG. 3A and FIG. 3B , FIG. 3A is a schematic top view showing the shape of the first substrate and the second substrate in the display structure with the control point sensing function, wherein FIG. 3A is a schematic view of the first embodiment. The second region 212 of the first substrate 21 and the fourth region 222 of the second substrate 22 are rectangular, respectively located on opposite sides of the accommodating space 20. FIG. 3B is a schematic view of the second embodiment, wherein the second region 212 of the first substrate 21 and the fourth region 222 of the second substrate 22 are L-shaped, respectively located on opposite sides of the accommodating space 20. The area increased by Figure 3B is larger than the area increased by Figure 3A.

In addition, in order to complete the shape of the substrate shown in FIG. 3A and FIG. 3B, FIG. 4 shows a schematic diagram of the cutting step of the display structure with the control point sensing function, which is mainly to control the large-area structure with the repetitive structure. The touch sensing function display panel 40 performs cutting to complete a large-area control point sensing function having a repeating structure. The display panel 40 includes a first mother substrate 401 and a second mother substrate 402, and the surface of the first mother substrate 401 A display device layer 23 has been formed, and a surface of the second mother substrate 402 has been formed with a control point sensing device layer 24. Then, the first mother substrate 401 is separated along the cutting line 4021 to form a plurality of first substrates 21 having the first region 211 and the second region 212, and the second mother substrate 402 is separated along the cutting line 4022 and the control point sensing is performed. The device layer 24 further forms a plurality of second substrates 22 having a third region 221 and a fourth region 222. The first region 211 of the first substrate 21 and the third region 221 of the second substrate 22 overlap each other to form a capacitance. a space 20 is disposed in the accommodating space 20, and the second region 212 of the first substrate 21 is separated from the edge of the second substrate 22, and the fourth region of the second substrate 22 is disposed. The 222 protrudes from the edge of the first substrate 21 , and the separated control point sensing device layer 24 is located in the third region 221 of the second substrate 22 and extends into the fourth region 222 . and The timing of the cutting is that the touch unit array 241 of the control point sensing device layer 24 and the outer winding layer 242 have been completed, and the setting of the polarizing plates 25 and 26 in FIG. 2 is performed after the cutting is completed. As can be clearly seen from the figure, in the present case, the same axial cutting can be completed by only one cutting of the single substrate by the upper roller cutter 41 and the lower roller cutter 42, respectively, of course, the other axial cutting can also use the same The way to complete, and thus complete the configuration shown in Figure 3B.

Please refer to FIG. 5 , which is a schematic cross-sectional view of another display structure with control point sensing function completed in the present embodiment, which is the same as most of the structure of FIG. 2 , except that the control point sensing device layer 24 is The first region 211 of the first substrate 21 is disposed in the first region 211 and extends into the second region 212. For example, the control point sensing device layer 24 includes a touch unit array 241 and an external winding layer 242. The touch unit array 241 is disposed on an outer surface of the first region 211 of the first substrate 21, The outer winding layer 242 is disposed on an outer surface of the second region 212 of the first substrate 21. This also provides a larger area for the outer winding layer 242 to utilize, thus overcoming the problems encountered in conventional means. The control chip (not shown) associated with the touch unit array 241 may be disposed on the outer surface of the second region 212 of the first substrate 21 in addition to the external winding layer 242. The outer surface of the second region 212 of a substrate 21 is used to meet the packaging requirements of Chip on Glass (COG).

In addition, since the touch unit array 241 can be a capacitive sensing touch unit array, it can be completed by two sets of electrode layers subdivided into different layers and arranged in the horizontal direction and the vertical direction, respectively, because the two sets of electrode layers are interlaced with each other. Capacitors may be formed between the adjacent portions. Therefore, in the technical concept of the present invention, the two sets of electrode layers may be respectively disposed on the first region 211 of the first substrate 21 and the second substrate 22. On the outer surface of the three regions 221, and relative The two sets of outer winding layers of the two sets of electrode layers extend to the outer surfaces of the second area 212 and the fourth area 222, respectively.

Referring to FIG. 6A and FIG. 6B , FIG. 6A is a schematic top view showing another shape of the first substrate and the second substrate in the display structure with the control point sensing function, wherein FIG. 6A is a third embodiment. The schematic diagram, wherein the second region 212 of the first substrate 21 is rectangular. 3B is a schematic view of the fourth embodiment, wherein the second region 212 of the first substrate 21 is L-shaped. The area increased by Figure 6B is larger than the area increased by Figure 6A.

In summary, the embodiment of the present invention provides a display structure with a control point sensing function, which can achieve the purpose of improving the lack of conventional means without increasing the number of processing steps. Although the present invention has been disclosed in the above embodiments, it is not intended to limit the invention, and any one of ordinary skill in the art can make some modifications and refinements without departing from the spirit and scope of the invention. The scope of the invention is defined by the scope of the appended claims.

2‧‧‧Display with control point sensing

21‧‧‧First substrate

22‧‧‧second substrate

211‧‧‧ first area

212‧‧‧Second area

221‧‧‧ third area

222‧‧‧ fourth area

20‧‧‧ accommodating space

23‧‧‧Display device layer

230‧‧‧Color filters

231‧‧‧Liquid layer

232‧‧‧Thin Film Array

233‧‧‧Interval wall construction

2321‧‧‧ signal line

2322‧‧‧Wiring pads

24‧‧‧Control point sensing device layer

241‧‧‧Touch unit array

242‧‧‧External winding layer

25, 26‧‧‧ polarizing plate

Claims (17)

  1. A control point sensing display structure includes: a first substrate having a first area and a second area defined thereon; a second substrate having a third area and a fourth area defined thereon, the first The first region of the substrate and the third region of the second substrate overlap each other to form an accommodating space, and the second region of the first substrate protrudes from the edge of the second substrate, and the fourth region of the second substrate is convex An edge of the first substrate; a display device layer disposed in the accommodating space; and a control point sensing device layer disposed in the first region of the first substrate and extending into the second region Or disposed in the third region of the second substrate and extending into the fourth region.
  2. The control point sensing display structure of claim 1, wherein the first substrate and the second substrate are both transparent glass substrates, and a compartment wall structure is disposed therebetween to surround the receiving space, the display The device layer includes a color filter, a liquid crystal layer, and a thin film transistor array.
  3. The control point sensing display structure of claim 1, wherein the second area of the first substrate and the fourth area of the second substrate are L-shaped, respectively located on opposite sides of the accommodating space.
  4. The control point sensing display structure of the first aspect of the invention, wherein the control point sensing device layer comprises a touch unit array and an outer winding layer, wherein the touch unit array is disposed on the second substrate On the outer surface of the third region, the outer winding layer is disposed on an outer surface of the fourth region of the second substrate.
  5. The control point sensing display structure of the first aspect of the invention, wherein the control point sensing device layer comprises a touch unit array and an outer winding layer, wherein the touch unit array is disposed on the first substrate On the outer surface of the first region, the outer winding layer is disposed on an outer surface of the second region of the first substrate.
  6. A control point sensing display manufacturing method includes the following steps: providing a control point sensing function display panel, comprising a first mother substrate and a second mother substrate, the surface of the first mother substrate or the second Forming a control point sensing device layer on the surface of the mother substrate; separating the first mother substrate in the display panel to form a plurality of first substrates having a first region and a second region; and separating the display panel Forming, by the second mother substrate, a plurality of second substrates having a third region and a fourth region, wherein the first region of the first substrate and the third region of the second substrate overlap each other to form an accommodating space. The accommodating space has a display device layer, and the second region of the first substrate protrudes from the edge of the second substrate, and the fourth region of the second substrate protrudes from the edge of the first substrate, after being separated The control point sensing device layer is located in the first region of the first substrate and extends into the second region or in the third region of the second substrate and extends into the fourth region.
  7. The method for manufacturing a control point sensing display according to the sixth aspect of the invention, wherein the first substrate and the second substrate are both transparent glass substrates, and a partition wall structure is disposed therebetween to surround the accommodating space. The display device layer includes a liquid crystal layer and a thin film transistor array.
  8. The control point display display manufacturing method of claim 6, wherein the second area of the first substrate and the fourth area of the second substrate are L-shaped, respectively located on opposite sides of the accommodating space.
  9. The control point sensing device manufacturing method of claim 6, wherein the control point sensing device layer comprises a touch unit array and an outer winding layer, wherein the touch unit array is disposed on the second substrate The outer winding layer is disposed on the outer surface of the fourth region of the second substrate.
  10. The control point sensing device manufacturing method of claim 6, wherein the control point sensing device layer comprises a touch unit array and an outer winding layer, wherein the touch unit array is disposed on the first substrate The outer winding layer is disposed on an outer surface of the second region of the second substrate.
  11. The control point sensing display manufacturing method of claim 6, wherein the first substrate is cut using a lower roller cutter, and the second substrate is cut using an upper roller cutter.
  12. A control point sensing display structure includes: a first substrate having a first area and a second area defined thereon; a second substrate having a third area defined thereon, the first area of the first substrate Forming an accommodating space with the third region of the second substrate, and the second region of the first substrate protrudes from the edge of the second substrate; a display device layer disposed in the accommodating space; A control point sensing device layer is disposed in the first region of the first substrate and extends into the second region.
  13. The control point sensing device structure of claim 12, wherein the control point sensing device layer comprises a touch unit array and an outer winding layer, wherein the touch unit array is disposed on the first substrate On the outer surface of the first region, the outer winding layer is disposed on an outer surface of the second region of the first substrate.
  14. The control point sensing display structure of claim 12, wherein the first substrate and the second substrate are both transparent glass substrates, and a compartment wall structure is disposed therebetween to surround the receiving space, the display The device layer includes a color filter, a liquid crystal layer, and a thin film transistor array.
  15. The control point sensing display configuration of claim 12, wherein the second region of the first substrate is L-shaped.
  16. A control point sensing display structure includes: a first substrate having a first area and a second area defined thereon; a second substrate having a third area and a fourth area defined thereon, the first The first region of the substrate and the third region of the second substrate overlap each other to form an accommodating space, and the second region of the first substrate protrudes from the edge of the second substrate, and the fourth region of the second substrate is convex An edge of the first substrate; a display device layer disposed in the accommodating space; and a control point sensing device layer disposed in the first region of the first substrate and extending into the second region And disposed in the third region of the second substrate and extending into the fourth region.
  17. A control point sensing display manufacturing method includes the following steps: providing a control point sensing function display panel, comprising a first mother substrate and a second mother substrate, the surface of the first mother substrate and the second Forming a control point sensing device layer on the surface of the mother substrate; separating the first mother substrate in the display panel to form a plurality of first substrates having a first region and a second region; and separating the display panel Forming, by the second mother substrate, a plurality of second substrates having a third region and a fourth region, wherein the first region of the first substrate and the third region of the second substrate overlap each other to form an accommodating space. The accommodating space has a display device layer, and the second region of the first substrate protrudes from the edge of the second substrate, and the fourth region of the second substrate protrudes from the edge of the first substrate, after being separated The control point sensing device layer is located in the first region of the first substrate and extends into the second region and in the third region of the second substrate and extends into the fourth region.
TW102148943A 2013-12-30 2013-12-30 Display structure for sensing control point and method for manufacturing the same TWI570474B (en)

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TW102148943A TWI570474B (en) 2013-12-30 2013-12-30 Display structure for sensing control point and method for manufacturing the same
CN201410819106.4A CN104750341A (en) 2013-12-30 2014-12-25 Control point sensing display structure and its manufacturing method

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW201239486A (en) * 2011-03-29 2012-10-01 Seiko Epson Corp Liquid crystal device and projection-type display apparatus
TW201327513A (en) * 2011-12-30 2013-07-01 Au Optronics Corp Touch display panel

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI416924B (en) * 2007-09-14 2013-11-21 Innolux Corp Touch-control display panel, display device and mobile phone using same
CN101984392B (en) * 2010-11-05 2012-02-29 华为终端有限公司 Operation method of simulation hardware button and touch screen terminal
TWI460629B (en) * 2012-05-11 2014-11-11 Au Optronics Corp Touch display panel and fabricating method thereof

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW201239486A (en) * 2011-03-29 2012-10-01 Seiko Epson Corp Liquid crystal device and projection-type display apparatus
TW201327513A (en) * 2011-12-30 2013-07-01 Au Optronics Corp Touch display panel

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