CN210639597U - Large-size narrow-frame capacitive touch screen and touch display device - Google Patents
Large-size narrow-frame capacitive touch screen and touch display device Download PDFInfo
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- CN210639597U CN210639597U CN201921624021.5U CN201921624021U CN210639597U CN 210639597 U CN210639597 U CN 210639597U CN 201921624021 U CN201921624021 U CN 201921624021U CN 210639597 U CN210639597 U CN 210639597U
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Abstract
The application is applicable to the technical field of display, and provides a large-size narrow-frame capacitive touch screen and a touch display device, which comprise a display area and a conductive film arranged on the side part of the display area, wherein N electrodes arranged in parallel are arranged on the display area, M binding areas are arranged on the conductive film, each binding area is provided with X binding pins, the binding pins are correspondingly connected with the electrodes one by one through electrode wires, X splicing pins are arranged in a splicing area between the M-1 binding area and the M-1 binding area, the X binding pins in the M-1 binding area and the splicing pins in the M-2 splicing area are correspondingly connected with the splicing pins in the M-1 splicing area one by one through a plurality of flexible circuit boards, the X binding pins in the M-1 binding area and the (M-1) X splicing pins in the M-1 splicing area are connected with a control unit through the flexible circuit boards, the conductive film and the flexible circuit boards are mutually overlapped, wherein N is M X, and M is more than or equal to 3.
Description
Technical Field
The utility model belongs to the technical field of show, especially, relate to a narrow frame electric capacity touch screen of jumbo size and touch-control display device.
Background
With the popularization and promotion of various touch display devices, the market of large-sized touch display devices is increasing year by year. Through long-term development of the capacitive touch display device, the user experience of the large-size capacitive touch display device is greatly improved by combining the characteristic of low sheet resistance of the nano silver wire conductive film. In order to meet the requirement of better appearance, the requirement is also provided for the frame of the large-size touch display device, and an effective narrow frame solution is urgently needed.
For a traditional capacitance type large-size touch device, the width of a frame is mainly determined by the number of electrode routing lines, and the larger the screen size is, the more the electrode routing lines are, and the wider the frame is. As shown in fig. 1, a display area 1 of the touch display device includes a plurality of electrodes 2, the electrodes 2 are connected to the control unit through electrode wires 3, and the larger the screen of the touch display device is, the more the electrodes 2 are in the display area 1, so that the more the electrode wires 3 are needed, the larger the space occupied by the electrode wires 3 is, and the wider the frame of the touch display device is.
SUMMERY OF THE UTILITY MODEL
In view of this, the first embodiment of the present invention provides a large-size narrow-frame capacitive touch screen and a touch display device, so as to solve the problem of the wide frame of the large-size narrow-frame capacitive touch screen in the prior art.
In order to solve the technical problem, a first embodiment of the present invention provides a large-size narrow-frame capacitive touch screen, which comprises a display area, wherein N parallel electrodes are arranged on the display area, the display area further comprises a conductive film arranged on a side portion of the display area, M binding areas are arranged on the conductive film in sequence, each binding area is provided with X binding pins, M binding areas are arranged with X binding pins, M binding pins are arranged with X binding pins, the binding pins are connected with N binding pins through electrode wiring and electrode one-to-one correspondence, and the binding areas are adjacent to each other, a splicing area is arranged between the binding areas, M-1 binding areas and M-1 binding areas are arranged with M-1 binding areas, the splicing pins are arranged with X splicing pins, M-1 binding areas are arranged with X binding pins, and M-1 binding areas are arranged with M-1 binding pins through a plurality of flexible circuit boards, and X binding pins are arranged with M-1 binding areas The (M-2) × splicing pins in the (M-2) × splicing regions are connected in a one-to-one correspondence manner, the X binding pins in the (M) × binding regions and the (M-1) × splicing pins in the (M-1) × splicing regions are connected with a control unit for controlling the capacitive touch screen through the flexible circuit board, the conductive film and the flexible circuit boards are mutually overlapped, wherein N is M × X, M is not less than 3, and N, M and X are positive integers.
In one embodiment, the M-1 th splicing region is provided with M-1 splicing units, each splicing unit is provided with X splicing pins, one splicing unit in the M-1 th splicing region is connected with the M-1 st binding region through one flexible circuit board, and the rest M-2 splicing units in the M-1 th splicing region are correspondingly connected with the M-2 splicing units in the M-2 th splicing region through M-2 flexible circuit boards.
In one embodiment, the bonding pins and the stitching pins are made by printing silver paste on the conductive film.
In one embodiment, the electrode traces are made by silver paste printing and laser cutting processes.
In one embodiment, the adjacent electrode routing distance is 0.1 mm-0.15 mm.
In one embodiment, the width of the flexible circuit board is 2 mm-5 mm.
In one embodiment, the width of the conductive film is smaller than the width of the flexible circuit board.
In one embodiment, the bound region width is 1 mm to 3 mm.
In one embodiment, the width of the splicing region is 1 mm-3 mm.
A second embodiment of the utility model provides a touch-control display device, including the aforesaid the narrow frame electric capacity touch-control screen of jumbo size.
Adopt the produced beneficial effect of above-mentioned technical scheme to lie in:
m X binding pins on M binding on the conductive film are correspondingly connected with N electrodes one by one through electrode wiring, the binding regions are correspondingly connected with the splicing regions through flexible circuit boards, the (M-1) X splicing pins in the M-1 splicing regions and the X binding pins in the M binding regions are correspondingly connected with the N electrodes one by one, then the (M-1) X splicing pins in the M-1 splicing regions and the X binding pins in the M binding regions are connected with the control unit through the flexible circuit boards, so that the connection of the N electrodes and the control unit is realized, the conductive film and the flexible circuit boards are mutually overlapped, the designed electrode wiring interval is unchanged, and the total width of the electrode wiring is changed into the original X/N, so that the width of a capacitive touch screen frame is reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.
Fig. 1 is a schematic structural diagram of a conventional capacitive touch screen;
fig. 2 is a schematic structural diagram of a large-size narrow-frame capacitive touch screen according to an embodiment of the present invention;
fig. 3 is a schematic connection diagram of the bonding area and the splicing area according to an embodiment of the present invention.
In the figure: 1. a display area; 2. an electrode; 3. electrode routing; 4. binding pins; 5. splicing the pins; 6. a flexible circuit board; 61. a first flexible circuit board; 62. a second flexible circuit board; 63. a third flexible circuit board; 64. a fourth flexible circuit board; 7. a first binding region; 8. a second binding region; 9. a third binding region; 10. a first splicing region; 11. a second splicing region.
Detailed Description
In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system structures, techniques, etc. in order to provide a thorough understanding of the embodiments of the invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.
In order to explain the technical solution of the present invention, the following description is made by using specific examples.
As shown in fig. 2, the large-size narrow-frame capacitive touch screen includes a display area 1, N electrodes 2 arranged in parallel are arranged on the display area 1, a conductive film is arranged on a side portion of the display area 1, M binding areas are arranged on the conductive film in sequence, each binding area is provided with X binding pins 4, M X binding pins 4 in the M binding areas are correspondingly connected with the N electrodes 2 one by one through electrode wires 3, a splicing area is arranged between adjacent binding areas, M-1 splicing areas between the M-1 binding areas and the M-2 splicing areas are provided with (M-1) X splicing pins 5, X binding pins 4 in the M-1 binding areas and (M-2) X splicing pins 5 in the M-2 splicing areas are correspondingly connected with (M-1) X splicing pins 5 in the M-1 splicing areas through a plurality of flexible circuit boards 6, the X binding pins 4 in the Mth binding region and the (M-1) X splicing pins 5 in the M-1 splicing region are connected with a control unit for controlling the capacitive touch screen through flexible circuit boards 6, the conductive film and the flexible circuit boards 6 are mutually overlapped, wherein N is M X, M is not less than 3, and N, M and X are positive integers.
M X binding pins 4 on M binding on the conducting film are correspondingly connected with N electrodes 2 one by one through electrode wires 3, binding regions are correspondingly connected with the splicing regions through flexible circuit boards 6, (M-1) X splicing pins 5 in the M-1 splicing regions are correspondingly connected with (M-1) X binding pins 4 in all the binding regions before the M binding regions one by one, the (M-1) X splicing pins 5 in the M-1 splicing regions and the X binding pins 4 in the M binding regions realize one-to-one corresponding connection with the N electrodes 2, and then the (M-1) X splicing pins 5 in the M-1 splicing regions and the X binding pins 4 in the M binding regions are connected with the control units through the flexible circuit boards 6. According to the structure, the width of the flexible circuit board 6 is increased, but the total width of the electrode wiring 3 is changed into the original X/N, so that the larger the size of the capacitive touch screen is, the larger the number N of the electrodes 2 is, the better the narrow frame effect of the capacitive touch screen is, and the more the capacitive touch screen with the larger size has the more obvious effect of reducing the frame width by using the scheme.
M-1 splicing areas are provided with M-1 splicing units, each splicing unit is provided with X splicing pins 5, one splicing unit in the M-1 splicing area is connected with the M-1 binding area through one flexible circuit board 6, and the rest M-2 splicing units in the M-1 splicing area are correspondingly connected with the M-2 splicing units in the M-2 splicing area through M-2 flexible circuit boards 6.
The design can ensure that the used flexible circuit boards 6 have the same specification, and is favorable for reducing the production cost and the production difficulty.
The flexible printed circuit board is a flexible printed circuit board which is made of polyimide or polyester film as a base material and has high reliability and excellent performance, and has the characteristics of high wiring density, light weight and thin thickness. The utility model discloses flexible circuit board 6 who uses in is equipped with a plurality of prints and walks the line, realizes binding the connection of district and splice area or the connection between the splice area to the realization is bound the X in the district with the M a and is bound (M-1) X a splice pin 5 and realize the one-to-one connection with N electrode 2 altogether a pin 4 and M-1 splice area, then 6 realization N electrodes of rethread flexible circuit board 2 and the connection of the control unit. A plurality of flexible circuit board 6 can overlap each other and place to can not influence each other, and a plurality of flexible circuit board 6 overlap and place the space thickness that only can increase flexible circuit board 6, can not influence flexible circuit board 6's width, and flexible circuit board 6 appears the position unrestricted, consequently can realize reducing the effect of frame width.
The conducting film is provided with a plurality of binding pins 4 and splicing pins 5, the binding pins 4 are in one-to-one correspondence with the N electrodes 2, and the flexible circuit board 6 is used for realizing the corresponding connection between the binding pins 4 and the splicing pins 5 or the corresponding connection between the splicing pins 5.
The dimensions of the conductive film and the flexible circuit board 6 may be designed according to actual needs, for example, the width of the conductive film is smaller than the width of the flexible circuit board 6, and the total width of the conductive film and the flexible circuit boards 6 after being mounted in an overlapping manner is the width of one flexible circuit board 6. The width of the flexible circuit board 6 can be designed to be 2 mm-5 mm, and because the width of the flexible circuit board 6 is increased in the scheme, the width of the flexible circuit board 6 is designed to be as small as possible, so that the width of the frame is reduced.
The utility model discloses an in the embodiment, bind pin 4 and concatenation pin 5 and make through printing silver thick liquid on the conductive film.
Printing silver paste on the conductive film to form a plurality of binding areas and a plurality of splicing areas, wherein the distance between the M-1 th splicing area and the Mth binding area is larger than the distance between the M-1 th splicing area and the M-1 th binding area so as to ensure the corresponding connection between the binding areas and the electrodes 2 and the corresponding connection between the binding areas and the splicing areas, and the binding pins 4 and the splicing pins 5 are strip-shaped silver paste blocks so as to ensure the stable connection between the pins and the flexible circuit board 6.
The binding areas and the splicing areas are arranged in the vertical direction (in a use state), the width (horizontal direction) of the binding areas is 1 mm-3 mm, and the width (horizontal direction) of the splicing areas is 1 mm-3 mm. The parameters of the binding area and the splicing area can be designed according to factors such as actual contact requirements and position requirements. The widths of the binding area and the splicing area are set to be 1 mm-3 mm, so that stable connection among components can be met, the size is reduced, and the width of the frame is reduced.
In an embodiment of the present invention, the electrode trace 3 is manufactured by silver paste printing and laser cutting processes, and the distance between adjacent electrode traces is 0.1 mm to 0.15 mm. The distance between the electrode wires 3 can be very small through silver paste printing and laser cutting processes, and the reduction of the distance between the electrode wires 3 is beneficial to realizing narrow frames.
The utility model discloses a touch display device, including foretell narrow frame electric capacity touch-control screen of jumbo size. The touch display device comprises a teaching system, industrial control equipment, experimental equipment and the like.
The effect of this solution is explained below with reference to a specific embodiment:
the capacitive touch screen comprises 150 electrodes 2, wherein the distance between the electrode wires 3 is 0.1 mm, the widths of other parts (including the width of the lap joint area and the width of the ground wire) are 2 mm, and by adopting the prior art, the total width of a frame of the capacitive touch screen is 150 x 0.1+2 mm to 17 mm.
As shown in fig. 2 and fig. 3, according to the present embodiment, 3 binding regions and 2 splicing regions are disposed on the conductive film, each binding region has 50 binding pins 4, the width of the flexible circuit board 6 used is 2.5 mm, the width of the binding region is 1.5 mm, the width of the other part is 2 mm, 150 binding pins 4 and 150 electrodes 2 are connected in a one-to-one correspondence manner, 50 binding pins 4 in the first binding region 7 are respectively connected with 50 splicing pins 5 in the first splicing region 10 in a one-to-one correspondence manner through a first flexible circuit board 61, 100 splicing pins 5 are disposed in the second splicing region 11, 50 binding pins 4 in the second binding region 8 are respectively connected with 50 splicing pins 5 in the second splicing region 11 in a one-to-one correspondence manner through a second flexible circuit board 62, 50 splicing pins 5 in the first splicing region 10 are respectively connected with the other 50 splicing pins 5 in the second splicing region 11 in a one-to-one correspondence manner through a third flexible circuit board 63, the third binding region 9 and the second splicing region 11 are connected to a control unit for controlling the capacitive touch screen through a fourth flexible circuit board 64, and at this time, the total width of the frame of the capacitive touch screen is 50 × 0.1+2.5+1.5+2 — 11 mm, so that it can be seen that the width of the frame of the touch screen can be reduced by using the technical scheme.
In another embodiment, 5 binding regions and 4 splicing regions are arranged on the conductive film, each binding region is provided with 30 binding pins 4, the width of the used flexible circuit board 6 is 2.5 mm, the width of the binding region is 1.5 mm, the width of the other part of the flexible circuit board is 2 mm, the mounting mode is the same as that of the above mounting mode, and after the mounting is completed, the total width of the frame of the capacitive touch screen is 30 x 0.1+2.5+1.5+ 2-9 mm. Therefore, under the condition that the number of the electrodes 2 of the touch screen is fixed, the number of the binding areas arranged on the conductive film is larger, the number of the binding pins 4 in the binding areas is smaller, and the total width of the frame is smaller after the installation is finished.
The above-mentioned embodiments are only used for illustrating the technical solution of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention.
Claims (10)
1. The large-size narrow-frame capacitive touch screen comprises a display area, wherein N electrodes which are arranged in parallel are arranged on the display area, the large-size narrow-frame capacitive touch screen is characterized by further comprising a conductive film which is arranged on the side portion of the display area, M binding areas which are sequentially arranged are arranged on the conductive film, X binding pins are arranged in each binding area, M-X binding pins in the M binding areas are correspondingly connected with the N electrodes one by one through electrode wiring, a splicing area is arranged between every two adjacent binding areas, M-1 splicing areas between the M-1 binding areas and the M-1 binding areas are provided with (M-1) X splicing pins, and (M-1) X splicing pins in the M-1 binding areas and (M-2) splicing areas are respectively connected with the X binding pins in the M-1 binding areas and the M-2 splicing areas through a plurality of flexible circuit boards -2) × X of the stitching pins are connected in a one-to-one correspondence, X of the mth of the binding regions and (M-1) × X of the M-1 of the stitching regions are connected to a control unit for controlling a capacitive touch screen through the flexible circuit board, the conductive film and the plurality of flexible circuit boards are overlapped with each other, wherein N ═ M ×, M is not less than 3, N, M and X are positive integers.
2. The large-size narrow-bezel capacitive touch screen according to claim 1, wherein M-1 of the splicing regions is provided with M-1 splicing units, each splicing unit is provided with X splicing pins, one splicing unit in the M-1 of the splicing regions is connected with the M-1 of the binding regions through one flexible circuit board, and the rest M-2 of the splicing units in the M-1 of the splicing regions are correspondingly connected with the M-2 of the splicing regions through M-2 of the flexible circuit boards.
3. The large-size narrow-bezel capacitive touch screen of claim 1, wherein the bonding pins and the stitching pins are made by printing silver paste on the conductive film.
4. The large-size narrow-bezel capacitive touch screen of claim 1, wherein the electrode traces are fabricated by silver paste printing and laser cutting processes.
5. The large-size narrow-bezel capacitive touch screen of claim 1, wherein the adjacent electrode routing pitch is 0.1 mm to 0.15 mm.
6. The large-size narrow-bezel capacitive touch screen of claim 1, wherein the width of the flexible circuit board is 2 mm to 5 mm.
7. The large-size narrow-bezel capacitive touch screen of claim 1, wherein a width of the conductive film is smaller than a width of the flexible circuit board.
8. The large-size narrow-bezel capacitive touch screen according to claim 1, wherein the width of the binding region is 1 mm to 3 mm.
9. The large-size narrow-bezel capacitive touch screen of claim 1, wherein the width of the stitching region is 1 mm to 3 mm.
10. A touch display device, comprising the large-size narrow-bezel capacitive touch screen according to any one of claims 1 to 9.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921624021.5U CN210639597U (en) | 2019-09-26 | 2019-09-26 | Large-size narrow-frame capacitive touch screen and touch display device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921624021.5U CN210639597U (en) | 2019-09-26 | 2019-09-26 | Large-size narrow-frame capacitive touch screen and touch display device |
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| CN210639597U true CN210639597U (en) | 2020-05-29 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110703940A (en) * | 2019-09-26 | 2020-01-17 | 深圳市善柔科技有限公司 | Large-size narrow-frame capacitive touch screen and touch display device |
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- 2019-09-26 CN CN201921624021.5U patent/CN210639597U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110703940A (en) * | 2019-09-26 | 2020-01-17 | 深圳市善柔科技有限公司 | Large-size narrow-frame capacitive touch screen and touch display device |
| CN110703940B (en) * | 2019-09-26 | 2024-08-09 | 深圳市善柔科技有限公司 | Large-size narrow-frame capacitive touch screen and touch display device |
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