How does metal dome array work (2) The metal dome array can work effectively because the metal dome is arranged in an effective array. We generally divide these arrays into X rows and Y columns. These arrangements are not specific and are not limited to 4X4 and 5X5. It can also be irregular; we can

The working principle of light guide filmThe light guide film is an optical film used to change the direction of light, improve the brightness of the panel, and ensure the uniformity of the panel brightness. It turns a point light source into a surface light source. Its main working principle is to

Test items of ultra-thin light guide film:1. Light guide film brightness and uniformity testPlace the light guide plate on the test frame, and then put the keys on, and check the brightness and uniformity of the light transmitted by the keys. Compared with the model, it becomes darker or has uneven

For the button test and the bare test of the metal snap dome under the button, the general metal domes test requires the manufacturer to guarantee more than one million times, the strike speed is 2-3 beats per second, the strike force is 400G, and the test head is Flat head, the diameter is 1.5MM.If

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