Printed Circuit Pcb Control Keypad Fpc Circuit Membrane Switch:
1. Flexibility
It can be bent, folded and deformed freely. Its coil radius is small and it can be moved freely along X, Y, Z axis separately.
2. Occupy small space
Since it is light and thin, it makes best use of the narrow space in the instruments. (average thickness 1.1-0. Am)
3. Light weight
Its weight is very light because the design of FPC is not based on mechanical strength but current load.
4. Good seal capability
The flexible board could be designed for low- tensile seal enduring the adverse environment.
5. Steady transmission
The wiring pattern and the conductor distance can be freely designed according to electric parameters. Once the pattern is finalized, parameters of R. L. C is steady accordingly.
6. Easy assembly
The property of terminal is good enough to be fixed to any equipment by soldering, inserting, riveting and gluing. Manual mistakes in traditional wiring are avoided.
7. Good insulation
We selected the materials with good insulation property, such as polyimide, polyester, etc. Usually, the wiring is covered, so the insulation is greatly strengthened.
FPC & FFC can be extensively applied:
Decorative ink layer membrane switch panel
A, for the panel with ink is a solvent evaporation-based ink, this ink many varieties, but the ink should fineness, pure color, opacity, and the substrate such as PET combined firm to consider the proposed options with the German Baolong TJ Series , Seiko GAP series, Lai Seda GV series.
B, panel printed word is anti-anti-pattern printing is light at the PET surface (if not AUTOTDEX PET sheet, should be polarized to its processing).
C, according to the requirements of ink solvent evaporation operations (such as the need for full pre-press ink mixing).
D, of the chromatic printing should comply with the first light after dark, the light color block print print twice as much as possible to ensure the cover of, so ink saturation increases, and avoid color overprint double vision.
E, to guard against a dark ground overlay light, the light colored phase change ink, colored ink should be used in intaglio printing empty, dark ink on light ink to reduce the impact of similar, if not with an empty version of Indian law, the Yang Wen Figure thick ink printed more, but it must be dry, so that ink cover increased.
F, note the requirements before and after the printed back color, usually printed on white and silver, and its role in preventing the exposed circuit board behind the graphics, while not changing the color hue of ink, and printed in ink can set off the first panel is even more vivid Therefore, the printing ink on the back cover and strong demands, choose well, and India once is not enough to achieve such results can be printed twice. The role of the back cover panel screen: ink to prevent panel abrasion protection of graphic color.
A, ink on the back panel to conduct a clean up, improve the ability to cover, to prevent the exposed panel after the circuit.
B, to be back on the panel on the back of the upper screen printing ink, ink cover available Baolong TJ-944 (white), the best silver screen printing ink, in addition to cover Mexico, the same time to set off more vibrant shade of ink.
Part of the panel transparent window decorations:
A, printable Ketu Tai window fluid
B, can be printed on special colored transparent ink, the ink color transparent color should be light-emitting device and the wavelength of light emitting devices of the same color to make glow brighter.
C, how to choose and use the transparency of the good primary colors to make transparent ink in a transparent window portion and a high-color transparency. In practice, found that transparency is not good. Another good and transparent ink surface wrinkles, very convenient for the transparency of the poor, should be re-elected superior of the ink, like the election of Germany Baolong, Seiko, and Korea Seda GV series, the surface appeared orange ink skin like wrinkles, should be from the pre-press processing up to consider ink. Minor wrinkles to remove ink surface.
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