oled graphic display the manufacturing technology of the high degree of automation

 the manufacturing technology of the high degree of automation, industrial mass production characteristics. TFT - LCD industry mature technology, the yield of mass production reached more than 90 [%]. the applicable scope wide, from 20 ℃ to + 50 ℃ temperature range Low Temperature Display can be used normally, after temperature reinforcement of TFT - LCD low working temperature can reach 80 ℃ below zero. Can be used as mobile terminal, according to a desktop terminal display, and can be used as a large screen projection TV, is the excellent performance of full-size video display terminal. the good features of environmental protection: no radiation, no flicker, no damage to the health of consumers. Especially TFT - LCD the emergence of electronic books will bring human beings into a paperless Lcd display module  office, no paper printing time, cause human study, dissemination and civilization revolution of the way. TFT - LCD is easy to be integrated and renewal, is a large-scale semiconductor integrated circuit technology and the perfect combination of light source technology, continue to has a great potential for development. There are amorphous, polycrystalline and monocrystalline silicon TFT - LCD TFT of other materials in the future, there are both of glass and plastic substrates.
TFT LCD display screen is the feature of good brightness, high contrast, administrative levels feels strong, bright color, but there are also more power consumption and high cost. To speed up the development of the mobile phone color TFT LCD technology. A new generation of color screen mobile phone a lot of support in 65536, according to the color or even support 160000 color display, TFT high-contrast at this moment, the advantages of rich

oled graphic display pin functions and command system

Module pin functions as listed in Table 1. Instruction modules and LCD driver  compatible controller, a total of seven instructions. Not described in detail here, as listed in Table 2 only instruction list. Among them, the state is set to show the first two instructions, the rest of the class to read and write commands. Display Module with Lcd display module Cygnal microcontroller hardware interface design
VGS12864E interface connection in two ways: one is the direct access mode, the other is indirect access. Either way, you want to access the module must first read the contents of the status register to determine the "busy" flag can be accessed when not busy. Direct access method is a module interface as a memory or I / O devices directly linked to the MCU bus, MCU to access memory or I / O device mode the module operation. Indirect access MCU module is operated via software simulation control timing. Here is indirect access interface design Cygnal C8051F020 MCU and VGS12864E of.
Cygnal C8051F020 is an American company launched a mixed-signal SoC-based 8-bit microcontroller, a highly Serial display modules integrated mixed-signal system-on-chip. It has a 100-pin TQFP package, low power supply voltage of 2.7 ~ 3.3 V, all I / O, RST, JTAG pins are resistant to 5 V voltage; has high speed pipelined 8051-compatible CIP51 core structure (up to 25 MIPS). The MCU has a total of 64 P0 ~ P7 purpose I / O ports, each port pin can be configured as push-pull output or open-drain output. For VGS12864E, due to its operating voltage is 5 V, and C8051F020 operating voltage is 3.3 V, so the output C8051F020 better able to drive 5 V input OLED, the system requires additional configuration. In addition to the corresponding output port is set to "open drain", but also in the circuit will be connected to each port through a pull-up resistor on a 5 V power supply, so you can ensure C8051F020 logic "1" output can be raised to 5 V. The interface circuit shown in Figure 2.