CN210155466U

CN210155466U - Full-touch-based sectional liquid crystal module

Info

Publication number: CN210155466U
Application number: CN201921346975.4U
Authority: CN
Inventors: 滕云
Original assignee: TOSHIBA ELECTRONICS (DALIAN) CO Ltd
Current assignee: TOSHIBA ELECTRONICS (DALIAN) CO Ltd
Priority date: 2019-08-20
Filing date: 2019-08-20
Publication date: 2020-03-17
Anticipated expiration: 2029-08-20

Abstract

The utility model provides a section mode LCD module based on full touch-control, includes front panel, touch-sensitive screen sensor, LCD screen and PCB board, and the metal pin of the segmentation VA LCD screen that is shaded in the area welds on PCB board 4, and 3 upper portions of LCD screen are equipped with the touch-sensitive screen front panel, and the front panel downside is equipped with the touch-sensitive screen sensor, and the PCB board is connected to the front panel lead-out wire. The utility model discloses a combination of touch-sensitive screen and segmentation VA LCD can high definition show the various information of household electrical appliances, provides the touch button input mode that the finger dabbed simultaneously, has good vision and sense of touch and experiences when making the user operation.

Description

Full-touch-based sectional liquid crystal module

Technical Field

The utility model relates to a liquid crystal display technology field.

Background

In the white household appliance market, the low-end refrigerator and washing machine have limited functions, only complete basic refrigerating, freezing and washing functions, only use simple mechanical switches to prompt operation according to the printed symbols on the operation panel, and the middle-end and high-end products have more subdivided functions, and use the Liquid Crystal Display (LCD) as a display interface to display operation prompt and detection information, such as temperature, time, program setting, function classification and the like. The scheme of controlling the input is usually a mechanical key or a capacitive touch key, the capacitive touch key can be designed in a display area, but the key position can only be placed at the display edge due to line resistance and the like, and the application of the capacitive touch key is limited.

The full-touch screen is an industry developed in recent years, is mainly used for consumer products such as mobile phone panels and the like, is usually matched with a TFT (thin film transistor) screen and a driving circuit, and can report a touched coordinate point to a master control MCU (micro control unit) according to the resolution of the TFT screen so as to realize full touch. With the recent decrease in the cost of popularization, application to middle and low-end displays becomes feasible.

SUMMERY OF THE UTILITY MODEL

For realizing household electrical appliances human-computer interface innovation and good impression, the utility model provides a segmentation liquid crystal module based on full touch-control capacitive touch screen realizes showing and key input function.

The utility model discloses a realize that the technical scheme that above-mentioned purpose adopted is: the utility model provides a section mode LCD module based on full touch-control, includes front panel, touch-sensitive screen sensor, LCD screen and PCB board, and the metal pin of the segmentation VA LCD screen that is shaded in the area welds on

PCB board

4, and 3 upper portions of LCD screen are equipped with the touch-sensitive screen front panel, and the front panel downside is equipped with the touch-sensitive screen sensor, and the PCB board is connected to the front panel lead-out wire.

The liquid crystal screen is a VA type black film liquid crystal display.

The touch screen sensor is made of ITO glass materials or PET soft films and is adhered to the inner surface of the transparent window of the panel through coating optical cement.

The driving circuit adopts a special liquid crystal driving chip and a capacitive touch screen chip, and the driving circuit is welded on the PCB.

The utility model discloses a section formula LCD module based on full touch-control through touch-sensitive screen and sectional type VA LCD's combination, can high definition show the various information of household electrical appliances, provides the touch button input mode that a finger dabbed simultaneously, has good vision and sense of touch and experiences when making the user operation.

Drawings

Fig. 1 is the utility model discloses a section formula LCD module owner's vision structure chart based on full touch-control.

Fig. 2 is the utility model discloses full touch-control based sectional type liquid crystal module overlook the structure chart.

In the figure: 1. front panel, 2, touch-sensitive screen sensor, 3, LCD screen, 4, PCB board, 5, button.

Detailed Description

The utility model discloses a section formula LCD module structure based on full touch-control is shown as figure 1 and figure 2, including a segmentation VA LCD screen 3, a full touch-control front panel 1 and PCB board 4 that take to be shaded for realize the washing machine and show, and have the function of touch button, do not have the button to inlay, front panel 1 outward appearance levels, designs into a little whole of taking the cambered surface. The liquid crystal screen 3 adopts a VA type black film liquid crystal display, is a multi-quadrant vertical alignment technology, is provided with a white backlight suitable for brightness at the lower part, has wider display view angle, short reaction time and high contrast, and can realize high-definition display of household appliances by welding the liquid crystal screen on the PCB 4 through metal pins. The touch screen sensor 2 can be made of ITO glass or PET soft films, the inner surface of the transparent window of the panel 1 is pasted by coating optical cement, and the outgoing line of the touch screen is bent and welded on the PCB 4 and connected to a touch driving circuit to realize the finger touch function. The touch screen does not need to be provided with a key pattern, the key 5 pattern is solidified in the liquid crystal display screen, the display and the hiding of the key 5 pattern can be controlled by a circuit, the key pattern printed on the shell is replaced, the whole appearance is consistent without electricity, and the touch screen has mysterious feeling; and when the key is electrified and displayed, the touch driving circuit detects whether touch is performed or not at the position corresponding to the key icon, and reports the touched coordinate point or the touched sliding gesture to the main control MCU, so that man-machine interaction is realized. As shown in fig. 2, all the key and slider patterns are arranged in the display area according to the requirement, the working state of the washing machine is indicated, the transparent touch screen corresponds to the upper part of the key pattern, and the MCU determines the touch position and the sliding gesture information according to the touch coordinates. The drive circuit adopts a special liquid crystal drive chip and a capacitive touch screen chip, all the drive circuit combinations are welded on the PCB 4 to respectively drive the liquid crystal display and the detection touch keys, but the connection with the main control board only has a unique two-wire standard I2C interface, data is transmitted according to a fixed communication protocol, and the keys are read in and display content is controlled. The keys and the slide bars are defined according to the shape and the position of a display graph, the display and the hiding of the icons are controlled through the circuit, the operation of the touch panel is matched, mechanical keys and touch keys are replaced, and the combination of high-definition display and control of household appliances is realized.

The module can realize household appliance display, has the function of touching keys, replaces mechanical keys, and has a flat panel appearance; the section type liquid crystal module adopts a VA type liquid crystal display to realize high-definition display of household appliances, adopts a full-touch capacitive touch screen, keys are constructed at positions corresponding to the liquid crystal patterns on the touch screen, can be displayed and hidden through circuit control, and replace the key patterns printed on the shell.

Claims

1. The utility model provides a section formula LCD module based on full touch-control which characterized in that: including front panel (1), touch-sensitive screen sensor (2), LCD screen (3) and PCB board (4), the metal pin of the segmentation VA LCD screen (3) that is shaded in the area welds on PCB board (4), and LCD screen (3) upper portion is equipped with touch-sensitive screen front panel (1), and front panel (1) downside is equipped with touch-sensitive screen sensor (2), and PCB board (4) is connected to front panel (1) lead-out wire.

2. The full-touch-based segment-type liquid crystal module as claimed in claim 1, wherein: the liquid crystal screen (3) is a VA type black film liquid crystal display.

3. The full-touch-based segment-type liquid crystal module as claimed in claim 1, wherein: the touch screen sensor (2) is made of ITO glass materials or PET soft films, and the touch screen sensor (2) is adhered to the inner surface of the transparent window of the front panel (1) through coating optical cement.

4. The full-touch-based segment-type liquid crystal module as claimed in claim 1, wherein: the driving circuit adopts a special liquid crystal driving chip and a capacitive touch screen chip, and the driving circuit is welded on the PCB (4).