CN108874214B - Touch panel structure - Google Patents
Touch panel structure Download PDFInfo
- Publication number
- CN108874214B CN108874214B CN201810560714.6A CN201810560714A CN108874214B CN 108874214 B CN108874214 B CN 108874214B CN 201810560714 A CN201810560714 A CN 201810560714A CN 108874214 B CN108874214 B CN 108874214B
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- Prior art keywords
- substrate
- panel structure
- circuit board
- touch
- touch electrodes
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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
Abstract
The touch panel structure comprises a substrate, a plurality of first touch electrodes, a plurality of second touch electrodes, a first flexible circuit board and a pressure sensor. The first touch electrode is configured on the substrate and extends along a first direction. The second touch electrode is configured on the substrate and extends along a second direction. The first flexible circuit board comprises a first part and a second part, wherein the first part extends along a first direction and is arranged on one side of the substrate, the second part extends along a second direction from one end point of the first part, the first part comprises a plurality of first bridging pads, the first bridging pads are connected with a part of the second touch electrodes, the second part comprises a plurality of second bridging pads, and the second bridging pads are connected with a part of the first touch electrodes. The pressure sensor is arranged on the first part of the first flexible circuit board. The touch panel structure can reduce the configuration quantity of the flexible circuit boards, so that the whole volume of the touch panel structure is smaller.
Description
Technical Field
The present invention relates to a touch panel structure, and more particularly, to a touch panel structure with a grip sensing function.
Background
The mobile device may be equipped with a touch screen to display a picture, and receive various input actions through the touch screen. Due to the convenient operation of the touch screen, the touch screen is also one of the most common input interfaces in the generation of devices.
In recent years, in addition to the touch screen, a squeezing sensing device has been developed, and users can perform more gesture operations by pressing both sides of the mobile phone. However, the addition of the grip pressure sensing device in the mobile device inevitably increases the number of the flexible printed circuit boards, resulting in a reduction of the available space inside the mobile device.
Disclosure of Invention
In one aspect of the present disclosure, a touch panel structure is provided. The touch panel structure comprises a substrate, a plurality of first touch electrodes, a plurality of second touch electrodes, a first flexible circuit board and a pressure sensor. The first touch electrode is configured on the substrate and extends along a first direction. The second touch electrode is disposed on the substrate and extends along a second direction, wherein the second direction is different from the first direction. The first flexible circuit board comprises a first part and a second part, wherein the first part extends along a first direction and is arranged on one side of the substrate, the second part extends along a second direction from one end point of the first part, the first part comprises a plurality of first bridging pads, the first bridging pads are connected with a part of the second touch electrodes, the second part comprises a plurality of second bridging pads, and the second bridging pads are connected with a part of the first touch electrodes. The pressure sensor is arranged on the first part of the first flexible circuit board.
According to one or more embodiments of the present disclosure, the touch panel structure further includes a second flexible circuit board, the second flexible circuit board includes a third portion and a fourth portion, the third portion extends along the first direction and is disposed on the other side of the substrate opposite to the first portion, and the fourth portion extends along the second direction from an end point of the third portion.
According to one or more embodiments of the present disclosure, the third portion includes a plurality of third bonding pads, and the third bonding pads are connected to the remaining portions of the second touch electrodes.
According to one or more embodiments of the present disclosure, the second touch electrodes connected to the first portion and the second touch electrodes connected to the third portion are alternately arranged in the first direction.
According to one or more embodiments of the present disclosure, the fourth portion includes a plurality of fourth bonding pads, and the fourth bonding pads are connected to the remaining portions of the first touch electrodes.
According to one or more embodiments of the present disclosure, the second portion and the fourth portion are located on the same side of the substrate.
According to one or more embodiments of the present disclosure, the substrate has a first area and a second area, the first area is adjacent to the second area, and the first touch electrodes include a portion of the first touch electrodes located in the first area and the remaining first touch electrodes located in the second area.
According to one or more embodiments of the present disclosure, the substrate is made of a flexible material.
According to one or more embodiments of the present disclosure, the substrate is made of polycarbonate.
According to one or more embodiments of the present disclosure, the second direction is perpendicular to the first direction.
The touch panel structure provided by the disclosure can reduce the configuration number of the flexible circuit boards, so that the overall volume of the touch panel structure is smaller.
Drawings
The foregoing and other objects, features, advantages and embodiments of the disclosure will be more readily understood from the following detailed description taken in conjunction with the accompanying drawings in which:
fig. 1 illustrates a touch panel structure 100 according to some embodiments of the present disclosure.
Reference numerals:
100: touch panel structure
110: substrate
120: first touch electrode
130: second touch electrode
140: first flexible circuit board
141: the first part
142: the second part
145: first bonding pad
146: second lapping pad
150: pressure sensor
160: second flexible circuit board
161: third part
162: fourth section
165: third lapping pad
166: fourth lapping pad
170: conducting wire
171: first region
172: second region
D1: a first direction
D2: second direction
L: distance between each other
Detailed Description
The following disclosure provides many different embodiments, or examples, for implementing different features of the provided subject matter. Specific examples of components and arrangements are described below to simplify the present disclosure. These are, of course, merely examples and are not intended to be limiting. For example, the dimensions of the elements are not limited by the disclosed ranges or values, but may depend on the processing conditions and/or desired characteristics of the elements. Moreover, the description that a first feature is formed over or on a second feature encompasses embodiments in which the first and second features are in direct contact, as well as embodiments in which other features are formed between the first and second features such that the first and second features are not in direct contact. Various features may be arbitrarily drawn in different sizes for simplicity and clarity.
Furthermore, the spatially relative terms, such as "below", "above" at … "," below "," above … "," above ", etc., are used for ease of describing the relationship between the elements or features and other elements or features depicted in the drawings. Spatially relative terms may encompass different orientations of the component in use or operation in addition to the orientation depicted in the figures. The instrument may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted as such.
Referring to fig. 1, a touch panel structure 100 according to some embodiments of the present disclosure is shown. In fig. 1, the touch panel structure 100 includes a substrate 110, a first touch electrode 120, a second touch electrode 130, a first flexible circuit board 140, and a pressure sensor 150.
The first touch electrode 120 and the second touch electrode 130 are both located on the substrate 110, wherein the first touch electrode 120 extends along a first direction D1, and the second touch electrode 130 extends along a second direction D2, the first direction D1 is different from the second direction D2. In some embodiments, the first touch electrodes 120 and the second touch electrodes 130 are disposed in a staggered manner. In one embodiment, the first touch electrode 120 and the second touch electrode 130 may be Indium Tin Oxide (ITO) touch electrodes, metal mesh touch electrodes, or other touch electrodes. The touch panel structure provided by the present disclosure can be applied to various touch electrodes, and is not limited by the material of the touch electrodes. In some embodiments, the first direction D1 is perpendicular to the second direction D2. The substrate 110 may be made of a flexible material, such as a plastic material, e.g., polycarbonate.
In some embodiments, the touch panel structure 100 provided by the present disclosure is used for a touch mobile phone with a grip gesture function, so that the pressure sensor 150 can be used for grip sensing.
The first flexible circuit board 140 includes a first portion 141 and a second portion 142. The first portion 141 of the first flexible circuit board 140 extends along the first direction D1 and is disposed on one side of the substrate 110. In some embodiments, the first portion 141 is disposed on a long side of the substrate 110. The second portion 142 extends from an end point of the first portion 141 along the second direction D2, the end point being any one of two end points of the first portion 141. In some embodiments, the first portion 141 extends along the first direction D1 and completely covers one side of the substrate 110, in other words, the length of the first portion 141 is the same as or similar to the length of the long side of the substrate 110. Therefore, the second portion 142 extending from one end of the first portion 141 is disposed on the short side of the substrate 110.
In some embodiments, the first portion 141 of the first flexible printed circuit 140 includes a plurality of first bonding pads 145, and the first bonding pads 145 are connected to a portion of the second touch electrode 130. In some embodiments, the first landing pads 145 are directly connected to the second touch electrodes 130. In other embodiments, the first landing pad 145 is connected to the second touch electrode 130 through a conductive pad. The first landing pads 145 are connected to the second touch electrodes 130, so that the space required by edge routing can be reduced, and the routing configuration of the narrow-frame panel is facilitated.
The second portion 142 of the first flexible printed circuit 140 includes a plurality of second bonding pads 146, and the second bonding pads 146 are connected to a portion of the first touch electrodes 120. Similar to the first landing pads 145, the second landing pads 146 may be connected to the first touch electrodes 120 directly or through conductive pads.
In fig. 1, a plurality of wires 170 are disposed on the first flexible circuit board 140 and are respectively connected to the first landing pads 145 and the second landing pads 146. The connection here is an electrical connection, and may be a direct electrical connection or an indirect electrical connection. For simplicity and convenience of description, fig. 1 only shows a portion of the conductive wires 170, and in practical cases, each of the first and second landing pads 145 and 146 is connected to a different conductive wire 170.
The pressure sensor 150 is disposed on the first portion 141 of the first flexible printed circuit 140. As shown in fig. 1, the pressure sensors 150 are arranged along a first direction D1. In some embodiments, the pressure sensor 150 is disposed on the entire first portion 141 of the first flexible circuit board 140 along the first direction D1, that is, the area covered by the first portion 141 has a function of pressure sensing. Similarly, in some embodiments, a plurality of wires are electrically connected to the pressure sensor 150.
In some embodiments, the touch panel structure 100 further includes a second flexible circuit board 160. The second flexible circuit board 160 includes a third portion 161 and a fourth portion 162. The third portion 161 of the second flexible circuit board 160 extends along the first direction D1 and is disposed on the other side of the substrate 110 opposite to the first portion 141 of the first flexible circuit board 140, in other words, the third portion 161 of the second flexible circuit board 160 is also disposed on the long side of the substrate 110. The fourth portion 162 of the second flexible circuit board 160 extends from an end point of the third portion 161 along the second direction D2, where the end point is one of two end points of the third portion 161. In some embodiments, the third portion 161 extends along the first direction D1 and completely covers one side of the substrate 110, and the length of the first portion 141 is the same as or similar to the length of the long side of the substrate 110, so that the fourth portion 162 is disposed on the short side of the substrate 110.
The third portion 161 of the second flexible printed circuit 160 also includes a plurality of third bonding pads 165, and the third bonding pads 165 are connected to a portion of the second touch electrodes 130. In some embodiments, a portion of the second touch electrode 130 connected to the first bonding pad 145 of the first flexible printed circuit 140 and a portion of the second touch electrode 130 connected to the third bonding pad 165 of the second flexible printed circuit 160 are different second touch electrodes 130.
The second touch electrodes 130 connected to the first portion 141 and the second touch electrodes 130 connected to the third portion 161 are alternately disposed in the first direction D1. In other words, each of the second touch electrodes 130 is numbered along the first direction D1, the first landing pads 145 of the first portion 141 are connected to the second touch electrodes 130 numbered 1, 3, and 5 …, and the third landing pads 165 of the third portion 161 are connected to the second touch electrodes 130 numbered 2, 4, and 6 …. In another embodiment, the first landing pads 145 of the first portion 141 are connected to the second touch electrodes 130 numbered 2, 4, and 6 …, and the third landing pads 165 of the third portion 161 are connected to the second touch electrodes 130 numbered 1, 3, and 5 ….
The fourth portion 162 of the second flexible circuit board 160 includes a plurality of fourth bonding pads 166, and the fourth bonding pads 166 are connected to a portion of the first touch electrodes 120. A portion of the first touch electrodes 120 connected to the second bonding pads 146 of the first flexible printed circuit 140 and a portion of the first touch electrodes 120 connected to the fourth bonding pads 166 of the second flexible printed circuit 160 are different first touch electrodes 120. In some embodiments, the substrate 110 has a first region 171 and a second region 172, wherein the first region 171 is adjacent to the second region 172 and does not overlap with each other. A portion of the first touch electrodes 120 connected to the second landing pads 146 of the first flexible printed circuit 140 is located in the first region 171, and the remaining first touch electrodes 120 connected to the fourth landing pads 166 of the second flexible printed circuit 160 are located in the second region 172.
In some embodiments, similar to the first flexible circuit board 140, a plurality of wires are disposed on the second flexible circuit board 160 and are respectively connected to the third bonding pads 165 and the fourth bonding pads 166. For simplicity and convenience of description, fig. 1 only shows a portion of the conductive wires 170 on the first flexible circuit board 140, and in practical cases, each of the third bonding pads 165 and the fourth bonding pads 166 is connected to a different conductive wire 170.
In some embodiments, the second portion 142 of the first flexible circuit board 140 and the fourth portion 162 of the second flexible circuit board 160 are located on the same side of the substrate 110. The second portion 142 and the fourth portion 162 are located on the same side of the substrate 110, so that the space can be utilized more effectively, and the area ratio of the frame can be reduced as much as possible. In some embodiments, the distance L between the second portion 142 and the fourth portion 162 may be smaller than the distance between the two first touch electrodes 120 or equal to zero, in other words, the second portion 142 and the fourth portion 162 may be a continuous flexible circuit board, and the first flexible circuit board 140 and the second flexible circuit board 160 may be a single flexible circuit board.
In some embodiments, the junction between the first portion 141 and the second portion 142 of the first flexible circuit board 140 may be chamfered, and the junction between the third portion 161 and the fourth portion 162 of the second flexible circuit board 160 may also be chamfered, so as to facilitate the manufacturing process.
In an embodiment, when the touch panel structure 100 is configured in a touch mobile phone, since the touch panel structure 100 has a function of sensing a holding pressure, a user can control a volume by using a holding pressure gesture, so that a volume key can be omitted, and an internal space of the touch mobile phone can be more effectively utilized.
The touch panel structure provided by the embodiment of the invention can reduce the configuration quantity of the flexible circuit boards, so that the whole volume of the touch panel structure is smaller, and the touch panel structure is more favorable for a narrow-frame mobile phone. In addition, the number of the flexible circuit boards is reduced, so that the times of the bonding process can be reduced in the process, the labor cost is reduced, and the material cost is also reduced.
Some embodiments of the invention have been described in detail, but other embodiments are possible. Therefore, the spirit and scope of the appended claims should not be limited to the description of the embodiments contained herein.
While the foregoing is directed to embodiments of the present invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow.
Claims (10)
1. A touch panel structure, comprising:
a substrate;
a plurality of first touch electrodes disposed on the substrate and extending along a first direction;
a plurality of second touch electrodes disposed on the substrate and extending along a second direction, wherein the second direction is different from the first direction;
a first flexible circuit board including a first portion and a second portion, wherein the first portion extends in the first direction and is disposed at one side of the substrate, the second portion extends from an end of the first portion in the second direction, wherein the first portion includes a plurality of first landing pads extending from the first flexible circuit board, the plurality of first landing pads and a plurality of first wire connection portions on the plurality of first landing pads by a fraction of the plurality of second touch electrodes, the second portion includes a plurality of second landing pads extending from the first flexible circuit board, the plurality of second landing pads and a plurality of second wire connection portions on the plurality of second landing pads by a fraction of the plurality of first touch electrodes;
a second flexible circuit board, the second flexible circuit board including a third portion and a fourth portion, the third portion extending along the first direction and being disposed on the other side of the substrate opposite to the first portion, the fourth portion extending from an end of the third portion along the second direction, the third portion including a plurality of third bonding pads, the third bonding pads being connected to the second touch electrodes of the remaining portions; and
a pressure sensor disposed on the first portion of the first flexible printed circuit board.
2. The touch panel structure of claim 1, wherein a junction between the first portion and the second portion of the first flexible printed circuit board is chamfered, and a junction between the third portion and the fourth portion of the second flexible printed circuit board is chamfered.
3. The touch panel structure of claim 1, wherein the second portion and the fourth portion are a continuous flexible printed circuit, and the first flexible printed circuit and the second flexible printed circuit are a single flexible printed circuit.
4. The touch panel structure of claim 1, wherein the second touch electrodes connected to the first portion and the second touch electrodes connected to the third portion are alternately arranged in the first direction.
5. The touch panel structure of claim 1, wherein the fourth portion comprises a plurality of fourth bonding pads, and the fourth bonding pads are connected to the rest of the first touch electrodes.
6. The touch panel structure of claim 5, wherein the second portion and the fourth portion are located on the same side of the substrate.
7. The touch panel structure of claim 5, wherein the substrate has a first area and a second area, the first area is adjacent to the second area, and the first touch electrodes comprise a portion of the first touch electrodes located in the first area and the remaining first touch electrodes located in the second area.
8. The touch panel structure of claim 1, wherein the substrate is made of a flexible material.
9. The touch panel structure of claim 8, wherein the substrate is made of polycarbonate.
10. The touch panel structure of claim 1, wherein the second direction is perpendicular to the first direction.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810560714.6A CN108874214B (en) | 2018-05-25 | 2018-05-25 | Touch panel structure |
| TW107121580A TWI662332B (en) | 2018-05-25 | 2018-06-22 | Touch panel structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810560714.6A CN108874214B (en) | 2018-05-25 | 2018-05-25 | Touch panel structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108874214A CN108874214A (en) | 2018-11-23 |
| CN108874214B true CN108874214B (en) | 2021-05-04 |
Family
ID=64336223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810560714.6A Active CN108874214B (en) | 2018-05-25 | 2018-05-25 | Touch panel structure |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN108874214B (en) |
| TW (1) | TWI662332B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203706161U (en) * | 2013-12-02 | 2014-07-09 | 信利半导体有限公司 | Touch screen with narrow borders |
| CN203930775U (en) * | 2014-06-12 | 2014-11-05 | 宸鸿科技(厦门)有限公司 | A kind of large touch panel |
| CN204695287U (en) * | 2015-06-02 | 2015-10-07 | 南昌欧菲光科技有限公司 | Touch control display apparatus and pressure touch unit |
| CN107797708A (en) * | 2017-11-20 | 2018-03-13 | 深圳市盛迪瑞科技有限公司 | Capacitive touch screen with less peripheral circuit |
| CN107885390A (en) * | 2017-11-29 | 2018-04-06 | 武汉天马微电子有限公司 | Touch-control display panel and display device |
| CN108037844A (en) * | 2017-11-09 | 2018-05-15 | 厦门天马微电子有限公司 | Touch-control display panel and touch control display apparatus |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004240662A (en) * | 2003-02-05 | 2004-08-26 | Nissha Printing Co Ltd | Four-side narrow frame touch panel |
| TWI613572B (en) * | 2012-12-03 | 2018-02-01 | Ｌｇ伊諾特股份有限公司 | Electrode member and touch panel including the same |
| KR20150033468A (en) * | 2013-09-24 | 2015-04-01 | 엘지이노텍 주식회사 | Touch panel |
| CN204990254U (en) * | 2014-07-30 | 2016-01-20 | Lg伊诺特有限公司 | Touchpad |
| KR102528945B1 (en) * | 2016-05-24 | 2023-05-04 | 엘지디스플레이 주식회사 | Flexible display device |
| CN206162442U (en) * | 2016-08-08 | 2017-05-10 | 厦门天马微电子有限公司 | Touch display panel and touch display device |
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2018
- 2018-05-25 CN CN201810560714.6A patent/CN108874214B/en active Active
- 2018-06-22 TW TW107121580A patent/TWI662332B/en active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203706161U (en) * | 2013-12-02 | 2014-07-09 | 信利半导体有限公司 | Touch screen with narrow borders |
| CN203930775U (en) * | 2014-06-12 | 2014-11-05 | 宸鸿科技(厦门)有限公司 | A kind of large touch panel |
| CN204695287U (en) * | 2015-06-02 | 2015-10-07 | 南昌欧菲光科技有限公司 | Touch control display apparatus and pressure touch unit |
| CN108037844A (en) * | 2017-11-09 | 2018-05-15 | 厦门天马微电子有限公司 | Touch-control display panel and touch control display apparatus |
| CN107797708A (en) * | 2017-11-20 | 2018-03-13 | 深圳市盛迪瑞科技有限公司 | Capacitive touch screen with less peripheral circuit |
| CN107885390A (en) * | 2017-11-29 | 2018-04-06 | 武汉天马微电子有限公司 | Touch-control display panel and display device |
Also Published As
| Publication number | Publication date |
|---|---|
| TW202004280A (en) | 2020-01-16 |
| TWI662332B (en) | 2019-06-11 |
| CN108874214A (en) | 2018-11-23 |
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