The keys on the thin film keyboard represent the position, shape and size of the key body in different colors. It is common in the initial stage of the thin film keyboard. Stereo thin film keyboard: Usually, the keys on thin film keyboard only use color to express the position, shape and size of the key body. In this way, the accuracy of the operation can only be recognized by the operator's vision. Since there is no appropriate feedback information indicating whether the finger is pressed in the effective range of the switch to make the switch move, the confidence of the whole machine monitoring and the speed of operation are affected.
Thin film circuit boards have many advantages, such as good flexibility, light weight, stable transmission performance, impact resistance, low price, green environmental protection and so on. The special price is only half that of the ordinary rigid circuit board (PCB). Used in the key parts of the product, the cost of the product can be reduced. Following are the features of the commonly used flat film keyboard for thin film circuit manufacturers:
The common problems in the design of thin film switch and thin film circuit are as follows:
1. The shrapnel of the drum button of the thin film switch needs to be properly placed and not offset. Otherwise, it will affect the operation of the key to failure.
2. Color problem: The proportion of ink is the main reason for serious color deviation, and the color requirement is too strict. The color range is too small, these factors are more difficult to control in any industry. In terms of control cost of enterprises, to achieve a very small range of color, the cost is very high, the cost of products will rise, the unit price of products will rise correspondingly, and it is difficult for customers to accept, so. The range of color should be within a reasonable range.
3. The drum position of the button needs to be opened to the appropriate position, otherwise it will affect the beauty of the button. Back glue is not sticky, besides the choice of raw materials, we should also confirm the shape of the prototype. If the prototype has grooves, we need to choose good quality viscose. The choice of backing glue is suitable.
