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What are the common connection methods for bar LCD screens?


As the development of science and technology has promoted the technological progress of the LCD industry, emerging LCD products such as strip LCDs have appeared. Its unique long strip shape makes people look very pleasing to the eye. Xunrui's bar-shaped LCD screen is composed of liquid crystal material. The liquid crystal material is filled between two parallel plates, and the state of the molecules inside the liquid crystal material is changed by voltage to achieve shading and The light transmittance shows different depths and purposes of light. For interlaced images, as long as two slices and a three-color filter layer are added, color images can be displayed. In order to prolong the service life of the bar LCD, what are the connection methods for the bar LCD?

There are three main methods for connecting the strip LCD screen and the printed circuit board: zebra strips, metallic lead, and conductive film (FPC). These three bar-shaped LCD screen methods have their own advantages, and the scope of application is also different.

The biggest advantage of the zebra strip connection is that it is easy to install and detachable. It is most commonly used in the testing and character modules of liquid crystal displays. The disadvantages are large size, poor resistance to harsh environments, and high requirements for the surface finish of the printed circuit board.

Conductive film is currently the most common connection method for large-size dot matrix liquid crystal displays. Its main advantages are small space occupation, light weight, and no relative position of the printed circuit board. It is especially suitable for dense arrangement of multiple electrodes. The disadvantage is that it cannot be disassembled. , Maintenance is difficult, and the conductive film will break in harsh environments.

The biggest advantage of the metal lead connection method is that it is firm, reliable, and easy to install after pulling out the electrode pin. Its main disadvantage is its large size and wide display electrode pin spacing. In addition, glass thickness is required. Therefore, glass pins are often used when the number of meter electrodes is small and the environment is poor.