LCM Display drive interface and LCM process

- Nov 18, 2019-

The LCM  provides a standard lcd display drive interface (4-bit,8-bit, vga, etc.) of the user, and the user operates according to the interface requirements to control the lcd to display correctly. the lcm phase comparison glass is a higher level of lcd product, for small size lcd displays, lcm can be conveniently connected to a variety of microcontrollers (such as a single chip); however, for large-sized or colored lcd displays, it will generally take up a substantial portion of the control system or can't achieve control, such as a color lcm of 320 to 240 256 colors, for 20 fields/ second (i.e.,20 times full screen refresh for 1 second), the amount of data transmitted only for one second is as high as 320,240,8,20 = 11.71875 mb or 1.465 mb, If the standard mcss-51 series single-chip computer is used for processing, it is assumed that the use of the movx instruction continuously transmits the data, considering the address calculation time, at least a clock of 421.875 mhz is required to complete the transmission of the data, and the large amount of processing data is visible. 




The resolution of the fax is the scanning density, the higher the resolution represents the accuracy of the scan, and it can be divided into vertical resolution and horizontal resolution. The vertical resolution refers to the number of pixel points displayed per millimeter on the vertical horizontal line, and the horizontal resolution refers to the number of pixel points displayed per millimeter on the parallel horizontal line. According to the international standards of the three types of fax machines, the horizontal resolution is 8 pixels/ mm, so the resolution of the fax machine is generally indicated as 8 pixels/ mm and vertical pixels/ mm. The vertical resolution is mainly standard 3.85 pixels/ mm, fine 7.7 pixels/ mm, and ultra-fine 15.4 pixels/ mm. 



LCM process lcm process (liquid composite molding, composite liquid molding process)


 refers to rtm,rfi and rrim as the representative of composite liquid molding technology. The main principle is to lay the preform of the reinforcement material designed according to the performance and structure requirements in the mold cavity, and to inject the special injection resin into the resin film in the closed mold cavity or the heating melting mold cavity by using the injection equipment. The die has a peripheral sealing and fastening, as well as an injection and exhaust system to ensure the smooth flow of resin and the discharge of all gases and thoroughly infiltrated fibers in the mold cavity, and the mold has a heating system that can be heated and cured to form composite components. Lcm (liquid crystal module), is the liquid crystal module.