LGF metal dome array is a new design with the purpose of improving current LED keypad of direct illumination method. As everyone knows, the light under keypad is coming from the LED on PCB motherboard. a direct illumination LED frontally mounted at the PCB generates light to illuminate the keypad. We need to put about 8-10 pieces LED on each board, but if the design changed to use LGF, then we can save several LED, as well as SMT fee.
LGF, which full name is Light Guide Film, which is particularly for distinguishing characters or codes at night or in poor lighting conditions. When we add a LGF on current normal double layer or EMI dome array, it becomes a LGF dome array.
On the motherboard of mobile phone, through the optical refraction, only 1~4 pcs LED will be enough for soft and high light luminance, if using our LGF dome array (mobile phone LGF). At the same time, we can adjust luminance of the black area during the design to achieve the value to 30CD/M2.
Our LGF dome array can be used widely in high value added mobile phone, solving the problem of uneven of luminance, high power-consumption, big room space requirements and high costing.
We can make LGF dome array in various color and shape, also adjust different artwork to make LGF, such as printing, mould punching, etc.
Please contact us for more information about LGF dome array.