CN203465704U - Touch panel based on protection type capacitive touch screen - Google Patents
Touch panel based on protection type capacitive touch screen Download PDFInfo
- Publication number
- CN203465704U CN203465704U CN201320448701.2U CN201320448701U CN203465704U CN 203465704 U CN203465704 U CN 203465704U CN 201320448701 U CN201320448701 U CN 201320448701U CN 203465704 U CN203465704 U CN 203465704U
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- touch
- driving circuit
- liquid crystal
- type capacitive
- crystal display
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Abstract
Provided is a touch panel based on a protection type capacitive touch screen. A liquid crystal screen is installed on a printed circuit board (PCB) of a driving circuit, a front panel is installed on the upper portion of the liquid crystal screen, a touch film adheres to the transparent window inner surface of the panel, and a leading-out line of the touch film is connected with a touch driving circuit of the PCB of the driving circuit. According to the touch panel based on the protection type capacitive touch screen, a novel home appliance human-machine interface solution is provided, all kinds of information of home appliances can be displayed in high definition through the solution, a finger light-touch touch key input mode is provided simultaneously, and users can have good vision and touch experience when performing operation.
Description
Technical field
The utility model relates to technical field of automatic control, relates in particular to a kind of human-computer interaction interface technology.
Background technology
In white domestic appliances market, the refrigerator of low side and washing machine function are limited, only complete basic refrigerating and washing function, only with simple mechanical switch, according to the lettering symbol prompting on guidance panel, operate, the function sectionalization more of the product of middle and high end, adopted liquid crystal display LCD as display interface, display operation prompting and detection information, such as temperature, time, programming, Function Classification etc.Development along with lcd technology and touching technique, demonstration and touch technology that some are novel are applied, we absorb these new technologies and are applied in the man-machine interface of household electrical appliances washing machine, to obtain more gorgeous outward appearance clearly and display effect, obtain more joyful touch-control impression.
Utility model content
The problems referred to above that exist in order to overcome traditional operation interface for equipment such as refrigerator washing machines and display interface, the utility model provides a kind of contact panel based on projection-type capacitive touch screen showing with key-press input function of realizing.
The technical scheme that the utility model adopted is for achieving the above object: a kind of contact panel based on projection-type capacitive touch screen, liquid crystal display is installed on the pcb board of driving circuit, front panel is installed on liquid crystal display top, touch membrane sticks on the transparent window inside surface of panel, and touch membrane extension line connects the touch driving circuit of the pcb board of driving circuit.
The conductive region of button is printed on touch membrane, and button pattern cured is in described liquid crystal display.
Driving circuit Combination Welding is on pcb board 4, and driving circuit adopts for driving the lcd drive chip of liquid crystal display and the capacitance touch button chip of detection touch key-press.
Described liquid crystal display is welded on the pcb board of driving circuit by metal pins.
Contact panel based on projection-type capacitive touch screen of the present utility model, a kind of innovative household electrical appliances man-machine interface solution is provided, this scheme can high-resolution shows the various information of household electrical appliances, the touch key-press input mode that simultaneously provides a kind of finger to touch, has good vision and tactile experience when user is operated.
Accompanying drawing explanation
Fig. 1 is the touch panel structure provided figure of the utility model based on projection-type capacitive touch screen.
Fig. 2 is the contact panel schematic diagram of the utility model based on projection-type capacitive touch screen.
In figure: front panel 1, touch membrane 2, be pcb board 4, the button 5 of liquid crystal display 3, driving circuit.
Embodiment
As shown in Figure 1 touch panel structure provided based on projection-type capacitive touch screen of the present utility model, by metal pins, be welded on the pcb board 4 of driving circuit, front panel 1 is installed on liquid crystal display 3 tops, touch membrane 2 sticks on the transparent window inside surface of panel 1, and touch membrane extension line connects the touch driving circuit of the pcb board 4 of driving circuit.
Contact panel based on projection-type capacitive touch screen of the present utility model, shows for realizing washing machine, and has the function of touch key-press 5, replaces mechanical key, does not have button to inlay, and front panel flat appearance, is designed to a slightly integral body for cambered surface.Liquid crystal display 3 adopts VA type black film liquid crystal display, it is a kind of many quadrants vertical orientation technology, below is equipped with and is applicable to the backlight in vain of brightness, show that field-of-view angle is more broad, reaction time is short, contrast is high, and liquid crystal display is welded on pcb board 4 by metal pins, and the high-resolution that can realize household electrical appliances shows.
The conductive region of button is printed on touch membrane 2, adopt this flexible material of touch membrane 2 to build projected capacitive touch key-press 5, touch membrane 2 pastes the transparent window inside surface of panel 1, touch membrane extension line bent jointing is to pcb board 4, be connected to touch driving circuit, realize finger touch keypress function.
Button pattern cured, in described liquid crystal display 3, can be controlled its demonstration and be hidden by circuit.As shown in Figure 2, all button patterns are arranged in bottom side, viewing area, the same controlled in viewing area with the display pattern of other indication work state of washing machine, the corresponding transparent touch membrane in top of button pattern, each button is worked according to the mode of projected capacitive, the button pattern of correspondence below, touch sensible conduction region display, finger sensing touches, and realizes key-press input.
Driving circuit adopts special liquid crystal to drive chip and capacitance touch button chip.All driving circuit Combination Welding, on pcb board 4, drive respectively liquid crystal display and detect touch key-press, but with only have two unique line standard I2C interfaces being connected of master control borad, according to fixing communications protocol transmission data, read in button and control displaying contents.During enforcement, communication interface adopts cable connector, and lead terminal comprises 5V power supply, I2C clock data and back lighting power supply.
Claims (4)
1. the contact panel based on projection-type capacitive touch screen, it is characterized in that: liquid crystal display (3) is installed on the pcb board (4) of driving circuit, front panel (1) is installed on liquid crystal display (3) top, touch membrane (2) sticks on the transparent window inside surface of panel (1), and touch membrane extension line connects the touch driving circuit of the pcb board (4) of driving circuit.
2. a kind of contact panel based on projection-type capacitive touch screen according to claim 1, is characterized in that: it is upper that the conductive region of button is printed on touch membrane (2), and button pattern cured is in described liquid crystal display (3).
3. a kind of contact panel based on projection-type capacitive touch screen according to claim 1, it is characterized in that: driving circuit Combination Welding is on pcb board 4, and driving circuit adopts for driving the lcd drive chip of liquid crystal display and the capacitance touch button chip of detection touch key-press.
4. a kind of contact panel based on projection-type capacitive touch screen according to claim 1, is characterized in that: described liquid crystal display (3) is welded on the pcb board (4) of driving circuit by metal pins.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320448701.2U CN203465704U (en) | 2013-07-26 | 2013-07-26 | Touch panel based on protection type capacitive touch screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320448701.2U CN203465704U (en) | 2013-07-26 | 2013-07-26 | Touch panel based on protection type capacitive touch screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203465704U true CN203465704U (en) | 2014-03-05 |
Family
ID=50178053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320448701.2U Expired - Fee Related CN203465704U (en) | 2013-07-26 | 2013-07-26 | Touch panel based on protection type capacitive touch screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203465704U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105737024A (en) * | 2014-12-08 | 2016-07-06 | 上海松下微波炉有限公司 | Backlight module of operation panel |
| CN106155406A (en) * | 2015-05-14 | 2016-11-23 | 青岛海尔洗衣机有限公司 | A kind of outlet structure of touch membrane |
-
2013
- 2013-07-26 CN CN201320448701.2U patent/CN203465704U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105737024A (en) * | 2014-12-08 | 2016-07-06 | 上海松下微波炉有限公司 | Backlight module of operation panel |
| CN106155406A (en) * | 2015-05-14 | 2016-11-23 | 青岛海尔洗衣机有限公司 | A kind of outlet structure of touch membrane |
| CN106155406B (en) * | 2015-05-14 | 2021-01-12 | 佛山市顺德海尔电器有限公司 | Outlet structure of touch film |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140305 Termination date: 20170726 |