What is LCD display?TFT Lcd Modules?
LCD (liquid crystal display) may not be a new term for many users, but the history of this technology may far exceed our imagination. As early as the end of the 19th century, Austrian botanists discovered liquid crystals, that is, a substance has the fluidity of liquid and some arrangement characteristics similar to crystals at the same time. Under the action of electric field, the arrangement of liquid crystal molecules will change, which will affect its optical properties. This phenomenon is called electro-optic effect. Using the electro-optic effect of liquid crystal, British scientists made the first liquid crystal display, LCD display in the last century.
What are the advantages of LCD?liquid-crystal display?
The main principle of liquid crystal display is to stimulate liquid crystal molecules with current to generate points, lines and surfaces, which cooperate with the back lamp to form a picture. It has the following four characteristics:
(1) The fuselage is thin and saves space. Compared with the bulky CRT display, the LCD only has one-third of the space of the former; LCD Screens
(2) It saves power and does not produce high temperature. It is a low power consumption product. Compared with CRT display, it can be completely non hot;
(3) No radiation, conducive to health, LCD completely no radiation; flat-panel display.
(4) The picture is soft and does not hurt the eyes. Unlike CRT technology, the LCD picture will not flicker, which can reduce the damage to the eyes caused by the display, and the eyes are not easy to fatigue.
TFT LCD module input data interface type:
There are three types of Lcd Module input data interfaces (1), TTL / CMOS interface (2), LDI interface (3) and DVI interface
TFT LCD module function
The main functions of LCD display Modules are: JPEG image decoding; Support the display of 24bit color RGB image data and JPEG images; Display of characters; The data storage capacity is 64mbyte, which can update the image library and character library; Different serial port baud rates can be set.
Structure design of ,LCD display
The hardware of the module includes four parts: arm9s3c2440x processor, data storage module, LCD module and RS232 serial communication module. Two kinds of nonvolatile flash memory NAND flash and NOR flash are used in the module. Considering that NOR flash has the characteristics of on-chip execution and high reliability, it is used to store the program code of ARM9 processor; NAND flash with large storage capacity and high unit density is used to store massive data as the storage unit of image library and character library. SDRAM is used as external memory. TFT LCD lq080v3dg01 is used as the display screen of the module. RS232 serial port is used to communicate with other external modules.
FBelec is best TFT Lcd Modules supplier in China.
NINGBO FBELE ELECTRONICS CO.,LTD.
FBELE company was founded in 1997, is China's leading manufacturer of acoustic and other electronic components, we designs,manufactures, distributes high quality products in very competitive price, bestservice, timely delivery, small order acceptable, etc. Our products include piezo ceramic element, piezoelectric buzzer, magnetic buzzer,speakers, transducer, receiver, electret condenser microphone, magnetic contact. Piezoelectric alarm,ultrasonic sensor,PZT ceramics,etc.
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