Disclosure of utility model
The utility model aims to provide a membrane switch with double-color display, which aims to solve the problem that the occupied area of a display area is large when the conventional membrane switch is used for displaying different contents in multiple colors.
In order to achieve the above purpose, the present utility model adopts the following technical scheme: a two-color display membrane switch comprising:
The PCB is provided with a first color light lamp and a second color light lamp with different colors from the first color light lamp;
An ink layer including a first filter ink of the same color as the first color light lamp and a second filter ink of the same color as the second color light lamp;
The pattern plate is provided with at least one hollowed-out pattern, and is a light shielding plate or is provided with a light shielding layer; and
The touch control layer is arranged between the printing ink layer and the PCB, and a touch control key for switching on or off the first color light lamp or the second color light lamp is arranged on the touch control layer.
Preferably, the touch control device further comprises a substrate plate, wherein the substrate plate is arranged between the touch control layer and the ink layer.
Preferably, the ink layer further includes a diffusion ink layer disposed between the substrate plate and the first filter ink.
Preferably, the ink layer further includes a hiding ink layer disposed between the substrate plate and the second filter ink.
Preferably, a protective film is provided on the front surface of the pattern plate.
Preferably, the first color lamp is blue, and the second color lamp is red.
Preferably, the first filter ink is provided with a first pattern, the second filter ink is provided with a second pattern, and the first pattern or the second pattern is provided with an avoidance breakpoint at the intersection position of the first pattern and the second pattern;
the hollowed-out area of the hollowed-out pattern is larger than or equal to the outline area formed by the first pattern and the second pattern.
After the technical scheme is adopted, compared with the background technology, the utility model has the following advantages:
1. The filtering property of the ink is utilized to realize the filtering (i.e. shielding) of the lamplight with different colors, and the lamplight with the same color can pass through the performance to realize the display of two groups of different patterns in the same area, so that the display screen can display more contents without increasing the area of the display area, thereby achieving the effect of double-color display.
2. The touch control keys are arranged on the touch control layer of the film switch with double-color display so as to control the different color light lamps to be turned on, and then the required content is displayed through the ink layer and the graphic board, so that the purpose of manual control is realized.
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
In addition, it should be noted that: the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and to simplify the description, and do not denote or imply that the apparatus or elements of the present utility model must have a particular orientation, and thus should not be construed as limiting the utility model.
When an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
Unless specifically stated or limited otherwise, the terms "mounted," "connected," and "coupled" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the utility model will be understood by those skilled in the art according to the specific circumstances.
Examples
Referring to fig. 1 and 2, the present embodiment provides a two-color display membrane switch, which includes a PCB board 10, an ink layer 20, a graphic board 30 or a touch layer 40, wherein a first color light 101 and a second color light 102 with a color different from that of the first color light are disposed on the PCB board 10; the ink layer 20 includes a first filter ink 201 of the same color as the first color light lamp 101 and a second filter ink 202 of the same color as the second color light lamp 102; at least one hollowed-out pattern 301 is arranged on the pattern plate 30, and the pattern plate 30 is a light shielding plate, or the pattern plate 30 is provided with a light shielding layer; the touch layer 40 is disposed between the ink layer 20 and the PCB 10, and a touch button 401 for turning on or off the first color light 101 or the second color light 102 is disposed on the touch layer 40.
Specifically, the first color light is blue, and the second color light 102 is red. The wavelength of blue light is between 435nm and 480nm, the wavelength of red light is between 610nm and 750nm, and after printing by the ink, only light in the corresponding wavelength range can pass. Therefore, when the blue light is turned on, the content on the blue filter ink can be displayed, and similarly, the red light displays the content on the red filter ink.
When the display device is used, the first color light 101 is turned on (the second color light 102 is turned off at the moment, and vice versa) through the touch key 401, and the light is filtered through the ink layer 20, that is, the light with other colors is filtered in wavelength, so that the displayed pattern is single color after passing through the hollowed-out pattern 301. Therefore, different patterns can be displayed in the same area through switching illumination of the two color lamps, the space area of the display position is reduced, and the practicability is improved.
The patterns can be graphics, characters, symbols or a combination of at least two kinds of the graphics, the characters and the symbols, and the like, and can also be pictures and texts which are designed by oneself. In order to improve the effect of displaying the graphics on the graphics board 30, the graphics board 30 is a light shielding plate or is provided with a layer of light shielding layer, for example, black paint is coated on the graphics board to achieve the effect of light-tightness, so that the graphics can be clearly displayed in the hollowed-out graphics 301, the interference of external relations is effectively avoided, and the practicability is improved.
As shown in fig. 1 and 2, the present embodiment further includes a substrate board 50, where the substrate board 50 is disposed between the touch layer 40 and the ink layer 20. The substrate 50 may be an acrylic plate or a cardboard, so as to increase the overall structural strength of the membrane switch with dual-color display, and facilitate the carrying of the hierarchical structure of the ink layer 20, and facilitate the pressing and supporting of the touch layer 40, thereby improving the convenience of use.
As shown in fig. 2, the ink layer 20 in this embodiment further includes a diffusion ink layer 203, that is, an ink layer 20 made of diffusion ink, and the diffusion ink layer 203 is disposed between the substrate plate 50 and the first filter ink 201. The increase of the diffusion ink is favorable for guiding light, and the light source of the color light on the PCB 10 is conducted to the filter ink, so that the practicability is improved.
As shown in fig. 2, the ink layer 20 in this embodiment further includes a hiding ink layer 204, that is, the ink layer 20 made of the hiding ink layer 204, where the hiding ink layer 204 is disposed between the substrate 50 and the second filter ink 202. The hidden ink layer 204 may fill the blank areas of the first filter ink 201 and the second filter ink 202, so as to cover the blank areas and the partition areas, thereby improving the brightness of the first filter ink 201 and the second filter ink 202 and improving the display effect.
As shown in fig. 1 and 2, the front surface of the graphic board 30 in this embodiment is provided with a protective film 60, and the front surface of the graphic board 30 can be protected by the protective film 60, so as to avoid being scratched and achieve the purpose of protection.
In this embodiment, the first filter ink 201 is provided with a first pattern, the second filter ink 202 is provided with a second pattern, and the first pattern or the second pattern is provided with an avoidance break point at the intersection position of the first pattern and the second pattern; the hollowed-out area of the hollowed-out pattern 301 is greater than or equal to the outline area formed by the first pattern and the second pattern. The first patterns and the second patterns can be patterns, characters or characters, and the like, can also be combinations of the patterns and the characters, and the like, and the two different patterns are arranged in the same area in an inner layer mode, and are overlapped in an interrupted mode to avoid, namely, avoidance break points are formed on the first patterns or the second patterns, so that the first patterns or the second patterns are clearer when displayed.
The arrangement of the outline area can be the same as that of the outline area formed by the first pattern and the second pattern, so that the displayed contents can be concentrated in the outline area, the brightness of the pattern display is improved, and the practicability is improved.
The present utility model is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present utility model are intended to be included in the scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope of the claims.