Organic light-emitting diode has been emphasized and regarded as one of the best technologies of flat panel displays for its many advantages

such as low-voltage driving

low power dissipation

wide visual angle

thin and light-weight and so on.We want to introduce the full process of designing the AMOLED

which includes three sides content.Firstly

simulations using poly-TFT SPICE models are performed on the pixel driving circuit of a 2 inch(5.08cm

64×3×80) AMOLED panel

and on its substrate some peripheral driving circuits are integrated.The results are evaluated and analyzed

and confirmed the driving voltage and current of RGB OLED pixels while the color AMOLED is in white balance.At the same time

through the simulation we can find that the circuit can keep the current very well in the voltage range we confirmed

this means that if we provide the proper voltage the OLED panel can display high quality images.Secondly

we mention a means to make the image data for OLED panel displaying.This means encodes the BMP data to fit our design

and then puts the encoding file into E

2

PROM

to prepare the picture data for peripheral driving circuitry.At last the peripheral driving circuitry is designed based on FPGA and TFT-LCD chip.Through the simulation we can confirm that the peripheral driving circuitry can complete the driving OLED tasks.Now the OLED driving ASIC is few and expensive

however the TFT-LCD driving circuit is very mature and cheap.So if we can utilize the TFT-LCD driving circuit to design the OLED driving circuit

that is a very meaning thing.In the TFT-LCD driving chips

it integrates the shift register

the buffer

the latch

and inner D/A

at the same time it can output 256 gray level driving voltage.So using it not only reduces the complexity and periods of developing peripheral driving circuitry but also enhances the stabilization of peripheral driving circuitry and more existed TFT-LCD driving chips can exert more use in OLED driving circuit design.From the result we can prove that the model of using TFT-LCD driving chips to drive OLED is possible and can get better effect.