CN219285699U - Assembly with an operating surface and a circuit board - Google Patents
Assembly with an operating surface and a circuit board Download PDFInfo
- Publication number
- CN219285699U CN219285699U CN202223261847.4U CN202223261847U CN219285699U CN 219285699 U CN219285699 U CN 219285699U CN 202223261847 U CN202223261847 U CN 202223261847U CN 219285699 U CN219285699 U CN 219285699U
- Authority
- CN
- China
- Prior art keywords
- circuit board
- board portion
- assembly
- touch
- display area
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
- H03K17/96—Touch switches
- H03K17/962—Capacitive touch switches
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K2217/00—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00
- H03K2217/94—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00 characterised by the way in which the control signal is generated
- H03K2217/96—Touch switches
- H03K2217/9607—Capacitive touch switches
- H03K2217/960755—Constructional details of capacitive touch and proximity switches
- H03K2217/960765—Details of shielding arrangements
Abstract
The present utility model relates to an assembly having an operating surface and a circuit board disposed below the operating surface. The operating surface has a touch-sensitive display area and a key area adjacent to the display area. The circuit board has a first circuit board portion disposed in a first plane below the display area and a second circuit board portion disposed in a second plane below the key area. The planes extend parallel to each other at different distances from the operating surface from each other. The second circuit board section has at least one touch-sensitive sensor surface which is set up to detect a touch to the operating surface.
Description
Technical Field
The present utility model relates to an assembly having an operating surface and a circuit board disposed below the operating surface.
Background
The operation surface refers to a planar user interface through which a user can operate application software. For example, a touch screen (Touchscreen) has an operation surface operable by touch. Here, the operating surface of the touch screen is touched with one or more fingers and/or a stylus, for example, in order to launch or control an application or to influence or change the graphical content displayed on the touch screen.
Other operating surfaces have touch-sensitive areas with which touch keys, i.e. keys operable by touching the operating surface, are implemented.
The utility model relates to an operating surface having: a touch sensitive display area, in particular a display area of a touch screen; and a touch key disposed beside the display area. Of course, touching the key may be accomplished by expanding the touch sensitive display area accordingly. However, this increases the area of the display area, and thus also increases the cost of the display area accordingly.
Alternatively, an additional sensor area may be arranged beside the display area, with which sensor area the touch key is implemented. However, such additional sensor area is also relatively expensive. Furthermore, the sensor area must be connected to a control device of the display area. The connection of the sensor area to the control device of the display area results in further costs, for example, due to the plug connectors or contact springs on the circuit board that make up the connection, and the joining process used to assemble these plug connectors or contact springs in production. Furthermore, the plug connection may fail or be defective, and the contact spring may be easily damaged in production and thus be prone to production defects.
Disclosure of Invention
The object of the utility model is to provide an operating surface with a touch-sensitive display area and touch keys arranged next to the display area in a cost-effective manner.
According to the utility model, this object is achieved by an assembly having an operating surface and a circuit board arranged below the operating surface, wherein:
the operating surface has a touch-sensitive display area and a key area adjacent to the display area, and
the circuit board has a first circuit board part arranged in a first plane below the display area and a second circuit board part arranged in a second plane below the key area, wherein
These planes extend parallel to each other and at different distances from each other and from the operating surface, and
the second circuit board part has at least one touch-sensitive sensor surface which is set up to detect a touch to the operating surface.
The assembly according to the utility model implements touch keys arranged beside the touch-sensitive display area by means of a touch-sensitive sensor surface arranged on the circuit board. The circuit board is disposed below an operating surface having a touch-sensitive display area and a key area adjacent to the display area. The circuit board has two circuit board parts, wherein a first circuit board part extends, for example, under the display area. The second circuit board portion extends below the key region by a small distance and has a sensor surface.
Whereby no control means for connecting such a sensor area to the display area is required, for example by means of an additional plug connector or contact spring. In contrast, the touch keys are realized by sensor surfaces arranged on the second printed circuit board part, which can be connected to the control device of the display area, for example by means of conductor tracks extending in the printed circuit board. The control device of the display area may be arranged on the first circuit board section. This significantly simplifies the implementation of the touch keys and reduces their costs compared to the implementation of a separate sensor surface assembly by means of an operating surface, for example, since a circuit board of the control device with a display area can also be used for implementing the touch keys by means of the sensor surface arranged thereon.
In an embodiment of the assembly according to the utility model, the second plane in which the second circuit board portion extends is closer to the operating surface than the first plane in which the first circuit board portion extends.
The above-described embodiments of the assembly according to the utility model consider: the first circuit board portion is arranged below the display area and thereby below a display unit, e.g. a touch screen, having a display area. Since the display unit has a certain mounting depth, the first circuit board part is relatively far from the operation surface. However, the sensor surface of the second circuit board portion must be arranged as close as possible to the operation surface so that a touch to the operation surface can be reliably detected by the sensor surface. It is therefore advantageous if the plane of the second circuit board portion extends closer to the operating surface than the plane of the first circuit board portion.
In another embodiment of the assembly according to the utility model, the circuit board has a third circuit board portion which has at least one flexible region and connects the first circuit board portion with the second circuit board portion. Since the first circuit board portion and the second circuit board portion extend in mutually different planes, the two circuit board portions must be connected to each other by the circuit board portion extending between these planes.
For this purpose, a third circuit board portion having at least one flexible region is suitable, as this enables the third circuit board portion to be bent within the flexible region. Without such flexible areas, the first circuit board portion and the second circuit board portion would have to be connected between these planes, for example by cables, which would significantly increase the assembly and manufacturing costs and costs of the circuit board.
For example, at least one flexible region of the third circuit board portion has a thickness that is less than the first circuit board portion and the second circuit board portion.
Here, the thickness of the third circuit board portion is reduced in at least one region compared to the first circuit board portion and the second circuit board portion such that the region becomes flexible, i.e. bendable. The thickness of the third circuit board portion in the respective region may be reduced, for example by controlled depth milling, wherein the uppermost layer is removed in order to minimize the remaining thickness of the circuit board to such an extent that the circuit board becomes flexible in this region. The depth-controlled milling is preferably carried out on the side of the printed circuit board which is located inside the bending region.
Alternatively or additionally, at least one flexible region of the third circuit board section is designed to be serpentine-shaped.
The serpentine-like design of one region of the third circuit board portion refers to a design in which at least one region of the third circuit board portion is designed to be narrow and wound. By such a meandering design of a region of the third circuit board portion, flexibility (bendability) of the region can be achieved without having to reduce the thickness of the region relative to the first circuit board portion and the second circuit board portion. This reduces the cost of the circuit board, since working steps can be saved here.
In another embodiment of the assembly according to the utility model, at least one sensor face has a copper structure.
Due to the high conductivity of copper, copper structures are suitable for detecting touches to an operating surface, as copper structures can react to the electric field accompanying the touches.
In a further embodiment of the assembly according to the utility model, at least one sensor surface is designed as a projected capacitive sensor.
A projected capacitive sensor refers to a sensor having a capacitive structure that detects a touch to a cover of the capacitive structure by a local change in capacitance of the capacitive structure. Such capacitive structures are often used in touch screens for smartphones and tablet computers. In particular, the capacitive structure has the advantage of little wear, since the capacitive structure is protected by the cover. In the case of the assembly according to the utility model, the operating surface of the assembly acts as a cover.
In a further embodiment of the assembly according to the utility model, the circuit board has at least one conductor track which extends between the first circuit board part and the second circuit board part.
The sensor surface of the second circuit board part can be connected in particular to an electronic component or a plurality of electronic components of the first circuit board part, for example to an electronic component or a plurality of electronic components of a control device of the display unit, by means of conductor tracks extending between the first circuit board part and the second circuit board part.
In another embodiment of the assembly according to the utility model, a continuous cover is arranged over the display area and the key area.
The display area and the key area can be advantageously protected by such a cover, for example against dust, moisture and mechanical pressure. The cover is preferably transparent, for example made of glass or transparent plastic.
In a further embodiment of the component according to the utility model, the display area is set up for displaying graphical content.
In particular, the display area may be designed as a display surface of a touch screen.
Drawings
Embodiments of the present utility model will be explained in more detail below with reference to the accompanying drawings. Wherein:
figure 1 shows a top view of a first embodiment of an assembly according to the utility model,
figure 2 shows a cross-sectional view of the assembly shown in figure 1,
figure 3 shows a rear view of a second embodiment of the assembly according to the utility model,
fig. 4 shows a cross-sectional view of the assembly shown in fig. 3.
Detailed Description
Fig. 1 and 2 show an assembly 100 according to a first embodiment of the utility model. Here, fig. 1 shows a top view of the assembly 100, and fig. 2 shows a cross-sectional view of the assembly 100. The assembly 100 has an operative surface 102 and a circuit board 202 disposed below the operative surface 102.
The operating surface 102 has a touch sensitive display area 104 and two key areas 106 adjacent to the display area 104. The key regions 106 are respectively adjacent to the display region 104 on opposite sides of the display region 104. A continuous cover 212 is disposed over the display area 104 and the key area 106.
The display area 104 is a display surface of the touch panel 201 set up for displaying graphic contents.
For example, the key areas 106 are made of glass or plastic, respectively, and are designed to be non-touch sensitive.
The cover 212 is designed to be transparent and made of glass or plastic, for example.
The circuit board 202 includes: a first circuit board portion 204 disposed in a first plane 214 below the display area 104; and two second circuit board portions 206, which are arranged in a second plane 216 below the key areas 106, respectively. Here, the second plane 216 extends parallel to the first plane 214 and is closer to the operating surface 102 than the first plane 214.
On the first circuit board portion 204, electronic components, in particular electronic components for controlling the touch screen 201, are arranged.
Each second circuit board portion 206 may have a plurality of touch-sensitive sensor surfaces 108, each of which is configured to detect a touch on the operating surface 102 on the respective sensor surface 108. For example, the sensor surfaces 108 each have a copper structure and/or are each designed as a projection-type capacitive sensor. One touch key is implemented by each sensor face 108, which can be operated by touching the operation surface 102.
The first circuit board portion 204 is connected to the second circuit board portion 206 through the third circuit board portion 207, respectively. Each third circuit board portion 207 has flexible regions 210 in which the third circuit board portion 207 is connected to the first circuit board portion 204 or the third circuit board portion 207 is connected to the second circuit board portion 206 to which the third circuit board portion 207 connects it to the first circuit board portion 204.
The flexible region 210 of the third circuit board portion 207 has a thickness that is less than the first circuit board portion 204 and the second circuit board portion 206, respectively. The thickness of the third circuit board portion 207 within the flexible region 210 is reduced compared to the first circuit board portion 204 and the second circuit board portion 206 such that these regions become flexible, i.e. bendable. Thereby enabling the circuit boards 202 to bend within the flexible regions 210 of the third circuit board portion 207, respectively, without damaging the circuit boards 202. In the assembly 100 shown in fig. 1 and 2, the circuit board 202 is bent 90 degrees within these flexible regions 210, respectively.
At least one conductor track extends between the first circuit board portion 204 and each of the second circuit board portions 206 via the third circuit board portion 207. Each of these conductor tracks connects the sensor surface 108 of the second circuit board part 206, for example, with the electronic components of the first circuit board part 204.
Fig. 3 and 4 show, in part, an assembly 300 according to a second embodiment of the utility model. Here, fig. 3 shows a rear view of the assembly 300, and fig. 4 shows a cross-sectional view of the assembly 300. The assembly 300 has an operative surface 402 and a circuit board 302 disposed below the operative surface 402.
The operating surface 402 has a touch sensitive display area 404 and a key area 406 adjacent to the display area 404. A continuous cover 412 is disposed over the display area 404 and the key area 406.
The display area 404 is a display surface of the touch panel 301 set up for displaying graphic content.
The key region 406 is made of glass or plastic, for example, and is designed to be non-touch sensitive.
The cover 412 is designed to be transparent and made of glass or plastic, for example.
The circuit board 302 includes: a first circuit board portion 304 disposed within a first plane 414 below the display area 404; and a second circuit board portion 306 disposed in a second plane 416 below the key region 406. Here, the second plane 416 extends parallel to the first plane 414 and is closer to the operating surface 402 than the first plane 414.
On the first circuit board portion 304, electronic components, in particular electronic components for controlling the touch screen 301, are arranged.
The second circuit board section 306 has a plurality of touch-sensitive sensor surfaces 308, which are each provided for detecting a touch on the corresponding sensor surface 308 on the operating surface 402. For example, the sensor surfaces 308 each have a copper structure and/or are each designed as a projection-type capacitive sensor. One touch key is implemented by each sensor face 308, which can be operated by touching the operating surface 402.
The first circuit board portion 304 is connected to the second circuit board portion 306 through the third circuit board portion 307. The third circuit board portion 307 has a flexible region 310 or is formed entirely as a flexible region 310 of the circuit board 302. The flexible region 310 is designed to be serpentine. The flexibility (bendability) of the region 310 is achieved by the serpentine-like design without having to reduce the thickness of the circuit board 302 within the region 310 relative to the first circuit board portion 304 and the second circuit board portion 306.
At least one conductor track 312 extends between the first circuit board portion 304 and the second circuit board portion 306 via the third circuit board portion 307. Each of these conductor tracks 312 connects the sensor surface 308 of the second circuit board portion 306, for example, with the electronic components of the first circuit board portion 304.
List of reference numerals
100. 300 assembly
102. 402 operating surface
104. 404 display area
106. 406 key area
108. 308 sensor surface
201. 301 touch screen
202. 302 circuit board
204. 304 first circuit board portion
206. 306 second circuit board portion
207. 307 third circuit board portion
210. 310 flexible region
212. 412 lid
214. 414 first plane
216. 416 second plane
312. Printed conductor
Claims (11)
1. An assembly (100, 300) having an operating surface (102, 402) and a circuit board (202, 302) arranged below the operating surface (102, 402), characterized in that,
-the operating surface (102, 402) has a touch-sensitive display area (104, 404) and a key area (106, 406) adjacent to the touch-sensitive display area (104, 404), and
-the circuit board (202, 302) has a first circuit board portion (204, 304) arranged in a first plane (214, 414) below the touch sensitive display area (104, 404) and a second circuit board portion (206, 306) arranged in a second plane (216, 416) below the key area (106, 406), wherein
-the first plane (214, 414) and the second plane (216, 416) extend parallel to each other, at different distances from the operating surface (102, 402) from each other, and
-the second circuit board portion (206, 306) has at least one touch-sensitive sensor face (108, 308) which is set up for detecting a touch to the operating surface (102, 402).
2. The assembly (100, 300) of claim 1, wherein the second plane (216, 416) extends closer to the operating surface (102, 402) than the first plane (214, 414).
3. The assembly (100, 300) according to claim 1 or 2, wherein the circuit board (202, 302) has a third circuit board portion (207, 307) having at least one flexible region (210, 310) at a predetermined bending location and connecting the first circuit board portion (204, 304) with the second circuit board portion (206, 306).
4. The assembly (100, 300) of claim 3, wherein at least one flexible region (210) of the third circuit board portion (207, 307) has a thickness that is less than the first circuit board portion (204, 304) and the second circuit board portion (206, 306).
5. The assembly (100, 300) of claim 4, wherein the smaller thickness of the flexible region (210) is created by controlled depth milling inside a predetermined bend region.
6. An assembly (100, 300) according to claim 3, characterized in that at least one flexible region (310) of the third circuit board portion (207, 307) is designed as a meander.
7. The assembly (100, 300) of claim 1 or 2, wherein at least one touch sensitive sensor face (108, 308) has a copper structure.
8. The assembly (100, 300) according to claim 1 or 2, characterized in that at least one touch-sensitive sensor surface (108, 308) is designed as a projected capacitive sensor.
9. The assembly (100, 300) of claim 1 or 2, wherein the circuit board (202, 302) has at least one conductor track (312) extending between the first circuit board portion (204, 304) and the second circuit board portion (206, 306).
10. The assembly (100, 300) according to claim 1 or 2, characterized in that the assembly has a continuous cover (212, 412) arranged over the touch sensitive display area (104, 404) and the key area (106, 406).
11. The assembly (100, 300) according to claim 1 or 2, wherein the touch sensitive display area (104, 404) is set up for displaying graphical content.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102021133249.4 | 2021-12-15 | ||
| DE102021133249.4A DE102021133249A1 (en) | 2021-12-15 | 2021-12-15 | Assembly with a user interface and a printed circuit board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219285699U true CN219285699U (en) | 2023-06-30 |
Family
ID=86498978
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223261847.4U Active CN219285699U (en) | 2021-12-15 | 2022-12-06 | Assembly with an operating surface and a circuit board |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN219285699U (en) |
| DE (1) | DE102021133249A1 (en) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102013022100A1 (en) | 2013-08-01 | 2015-02-05 | Diehl Ako Stiftung & Co. Kg | Touch and / or proximity sensitive input device |
| DE102013216493A1 (en) | 2013-08-20 | 2015-02-26 | Zf Friedrichshafen Ag | Printed circuit board having a first rigid circuit board portion and a second rigid circuit board portion and method of providing the circuit board |
| CN109710098B (en) | 2017-10-26 | 2022-03-22 | 迪尔阿扣基金两合公司 | Touch button with display screen and household appliance |
-
2021
- 2021-12-15 DE DE102021133249.4A patent/DE102021133249A1/en active Pending
-
2022
- 2022-12-06 CN CN202223261847.4U patent/CN219285699U/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| DE102021133249A1 (en) | 2023-06-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |