WO2020155938A1

WO2020155938A1 - Touch screen control panel and touch control display apparatus

Info

Publication number: WO2020155938A1
Application number: PCT/CN2019/127771
Authority: WO
Inventors: 霍东建
Original assignee: 广州视源电子科技股份有限公司; 广州视睿电子科技有限公司
Priority date: 2019-01-29
Filing date: 2019-12-24
Publication date: 2020-08-06
Also published as: CN209343306U

Abstract

Disclosed in the present application are a touch screen control panel and a touch control display apparatus comprising said touch screen control panel. The touch screen control panel comprises a circuit board and connectors disposed on the circuit board, the circuit board comprising an edge part and an inside part, the edge part surrounding the inside part, there being a plurality of connectors, at least some of the connectors amongst the plurality of connectors being disposed on the edge part and some of the connectors being disposed on the inside part, there being a gap between the connectors positioned on the edge part and the connectors positioned on the inside part.

Description

Touch screen control board and touch display device

This disclosure claims the priority of a Chinese patent application filed with the Chinese Patent Office with an application number of 201920167123.2 on January 29, 2019, and the entire content of the above application is incorporated into this disclosure by reference.

Technical field

This application relates to the field of touch technology, for example, to a touch screen control panel and a touch display device.

Background technique

Currently, input display devices using touch screens are more and more widely used, such as mobile phones, mobile Internet devices (MID), smart terminals, smart blackboards, conference tablets, etc. With the increase in the number of touch screen channels, the size of the touch screen control panel has also become larger. As shown in Figure 2, the connectors 22 on the traditional control board 20 generally adopt a layout scheme that is placed side by side on the edge of the circuit board 21. This has basically become a consensus in the industry, but due to the comparison of the electronic components on the control board 20 In this way, when the area of the control board 20 increases, a large amount of space on the entire board surface will be wasted, and the space utilization rate is not high, which makes it difficult to effectively reduce the size of the entire board surface, and it will be inconvenient to use.

Summary of the invention

The present application provides a touch screen control panel that can improve the utilization rate of the panel space and reduce the size, and a touch display device containing the touch screen control panel.

A touch screen control board includes a circuit board and a connector provided on the circuit board. The circuit board includes an edge portion and an inner side portion. The edge portion is arranged around the inner side portion, and the connector has a plurality of At least some of the connectors among the plurality of connectors are provided on the edge portion, and some of the connectors are provided on the inner portion, and the connector located on the edge portion and the connector located on the inner portion There is a gap between the connectors.

A plurality of the connectors are located on the same side surface of the circuit board.

The connector provided on the edge portion extends along the corresponding outer side of the edge portion; and/or

A portion of the outer side of the edge portion is correspondingly provided with a plurality of the connectors, and the plurality of connectors are arranged side by side along the outer side at the edge portion.

The multiple connectors on the same side of the circuit board are arranged in parallel.

The distance between adjacent connectors among the multiple connectors on the same side of the circuit board is not less than 10 mm.

The ends of the multiple connectors on the same side of the circuit board are arranged flush or partially staggered.

The multiple connectors are divided into TX connectors and RX connectors;

The TX connector and the RX connector are respectively distributed on different sides of the edge portion, and the TX pin and the RX pin of the control chip on the circuit board face the TX connector and the RX connector, respectively; And/or the traces of the TX connector and the RX connector on the circuit board do not cross.

The TX connectors are distributed on the left side and/or the right side of the circuit board, and the RX connectors are located on the upper side and/or lower side of the circuit board.

The circuit board includes sub-boards arranged in multiple layers, and different connectors with overlapping traces are located on different sub-boards on the circuit board and separated by a shielding layer.

Mounting holes are provided on the circuit board.

A touch display device includes a display module, a touch module, and the touch screen control board according to any one of the above embodiments. The touch module is provided on the display module, and the touch module The group is electrically connected with the connector on the touch screen control board.

This application transfers some of the traditional connectors located at the edge of the circuit board to the inner side. When using it, just pay attention to the influence between the signals and do a good shield or layout, such as shield the FFC wiring of the connector Or ensure that the signal lines of different sensing layers do not overlap, so as not to cause signal interference, and such a layout design can improve the utilization of the board space, thus greatly reducing the size of the circuit board.

Description of the drawings

FIG. 1 is a schematic structural diagram of a touch screen control panel according to an embodiment of the application. In the figure, the area outside the dashed line represents the edge portion, and the area inside the dashed line represents the inner portion;

Figure 2 is a schematic diagram of the structure of a traditional touch screen control panel.

detailed description

In order to facilitate the understanding of the application, the application will be described in a more comprehensive manner with reference to the relevant drawings. The drawings show alternative embodiments of the application. However, this application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of this application more thorough and comprehensive.

It should be noted that when an element is referred to as being "disposed on" another element, it can be directly on the other element or a centered element may also exist. When an element is considered to be "connected" to another element, it can be directly connected to the other element or an intermediate element may be present at the same time.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field of this application. The terms used in the specification of the application herein are only for the purpose of describing specific embodiments, and are not intended to limit the application. The term "and/or" as used herein includes any and all combinations of one or more related listed items.

As shown in FIG. 1, an embodiment of the present application provides a touch screen control board 10, which includes a circuit board 11 and a connector 12 provided on the circuit board 11. The circuit board 11 includes an edge portion 111 and an inner side portion 112. The edge portion 111 is provided around the inner portion 112. There are multiple connectors 12. Among the plurality of connectors 12, at least some of the connectors 12 are provided on the edge portion 111, and some of the connectors 12 are provided on the inner portion 112. There is a gap between the connector 12 located at the edge portion 111 and the connector 12 located at the inner portion 112.

In a specific example, the circuit board 11 is a multi-layer board, including a sub-board arranged in multiple layers. Furthermore, the circuit board 11 has a mounting hole 113. The mounting holes 113 may be, but not limited to, distributed on the edge portion 111.

In the specific example shown in the figure, multiple connectors 12 are located on the same side surface of the circuit board 11, which facilitates installation and wiring.

The connector 12 provided on the edge portion 111 extends along the corresponding outer side of the edge portion 111, and may be arranged parallel to the outer side, for example. A portion of the outer side of the edge portion 111 is correspondingly provided with a plurality of connectors 12, and the plurality of connectors 12 are arranged side by side along the outer side on the edge portion 111, such as the three corresponding to the lower side as shown in FIG. Pieces of connector 12.

The circuit board 11 can be divided into different sides with the center of the circuit board 11 and the corresponding sides. In a specific example, the multiple connectors 12 on the same side of the circuit board 11 are arranged in parallel. For example, the two connectors 12 on the left side in FIG. 1 are arranged in parallel, and the two connectors 12 on the right side in FIG. The connectors 12 are also arranged in parallel, and the three connectors 12 on the lower side as shown in FIG. 1 are arranged side by side in parallel.

In a specific example, in order to avoid the influence of the FFC line reinforcing plate used for the connector 12, the adjacent connectors 12 of the multiple connectors 12 located on the same side on the circuit board 11 need to be separated by a certain distance. The distance, optional, is not less than 10mm.

A certain distance should also be avoided between the connector 12 on one side of the circuit board 11 and the connector on the other side to avoid wiring. This distance can be designed as required. Specifically, the ends of the multiple connectors 12 on the same side of the circuit board 11 are arranged flush or partially staggered. For example, the two connectors 12 on the left side in FIG. 1 are partially staggered so as to be located on the inner side 112. A certain gap is formed between the connector 12 and the connector 12 on the lower edge 111 for the lower connector 12 to route.

The plurality of connectors 12 are divided into TX connectors 121 and RX connectors 122. The TX connector 121 and the RX connector 122 are respectively distributed on different sides of the edge portion 111 for electrically connecting the TX sensing layer and the RX sensing layer. The traces of the TX connector 121 and the RX connector 122 on the circuit board 11 do not cross. Optionally, the TX pin and RX pin of the control chip 114 on the circuit board 11 face the TX connector 121 and the RX connector 122, respectively.

In a specific example, the TX connector 121 is distributed on the left and/or right side of the circuit board 11, and the RX connector 122 is located on the upper side and/or the lower side of the circuit board 11. For example, in the specific example shown in FIG. 1, the connectors 12 on the left and right sides are both TX connectors 121, and the connectors 12 on the lower side are both RX connectors 122. The TX connectors 121 on the left and right sides are connected to the TX drive channel. When the signal is transmitted from the circuit board 11 to the touch module through the TX connectors 121 on the left and right sides, the two TX connectors 121 on the left The FFC lines will have to go out together, and the signal will not be affected; the RX connector 122 on the lower side is connected to the RX drive channel, and the signal is input from the touch module to the circuit board 11 through the RX connector on the lower side, so the lower side The position of the RX connector 122 remains unchanged.

In a specific example, the circuit board 11 includes a sub-board (not shown) arranged in multiple layers. Different connectors 12 with overlapping traces. The traces on the circuit board 11 are located on different sub-boards and separated by shielding layers. For example, the connectors on the same side of the circuit board 11 at the edge 111 The traces of 12 and the traces of the connector 12 at the inner portion 112 are located on different sub-boards, and are separated by a shielding layer. The traces of the connector 12 on the edge 111 on the same side and the traces of the connector 12 on the inner portion 112 are separated by other subboards.

The present application also provides a touch display device, which includes a display module, a touch module, and the touch screen control board 10 of any of the above embodiments. The touch module is arranged on the display module, and the touch module It is electrically connected to the connector 12 on the touch screen control board 10.

This application transfers the traditional part of the connector 12 located at the edge portion 111 of the circuit board to the inner portion 112. When in use, as long as proper attention is paid to the influence between the signals, shielding or layout is done, for example, the FFC of the connector 12 is routed. Shield the wires or ensure that the signal wires of different sensing layers do not overlap, so as not to cause signal interference, and this layout design can improve the utilization of the board space, thus greatly reducing the size of the circuit board.

The various technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, all possible combinations of the various technical features in the above-mentioned embodiments are not described.

Claims

A touch screen control board includes: a circuit board and a connector provided on the circuit board, the circuit board includes an edge portion and an inner portion, the edge portion is arranged around the inner portion, and how many connectors are At least some of the connectors are provided on the edge portion, and some of the connectors are provided on the inner portion, and the connectors located on the edge portion and the connectors located on the inner portion There is a gap between the connectors.
3. The touch screen control board of claim 1, wherein a plurality of the connectors are located on the same side surface of the circuit board.
The touch screen control panel according to claim 1, wherein the connector provided on the edge portion extends along the corresponding outer side of the edge portion; and/or

A portion of the outer side of the edge portion is correspondingly provided with a plurality of the connectors, and the plurality of connectors are arranged side by side along the outer side at the edge portion.
The touch screen control board according to any one of claims 1 to 3, wherein a plurality of the connectors on the same side of the circuit board are arranged in parallel.
8. The touch screen control board of claim 4, wherein the distance between adjacent connectors among the plurality of connectors located on the same side of the circuit board is not less than 10 mm.
The touch screen control board of claim 4, wherein the ends of the plurality of connectors on the same side of the circuit board are arranged flush or partially staggered.
The touch screen control board according to any one of claims 1-3 and 5-6, wherein the plurality of connectors are divided into TX connectors and RX connectors;

The TX connector and the RX connector are respectively distributed on different sides of the edge portion, and the TX pin and the RX pin of the control chip on the circuit board face the TX connector and the RX connector, respectively; And/or the traces of the TX connector and the RX connector on the circuit board do not cross.
The touch screen control board of claim 7, wherein the TX connector is distributed on the left and/or right side of the circuit board, and the RX connector is located on the upper side and/or lower side of the circuit board. side.
The touch screen control board according to any one of claims 1-3, 5-6 and 8, wherein the circuit board comprises a multi-layer laminated sub-board, and different connectors with overlapping lines are arranged on the circuit board. The upper traces are located on different daughter boards and separated by shielding layers.
A touch display device, comprising: a display module, a touch module, and the touch screen control panel according to any one of claims 1-9, the touch module being arranged on the display module , The touch control module is electrically connected to the connector on the touch screen control board.