A small area 10-bit linear gamma DAC with voltage adder for large-sized active matrix flat panel displays
- Resource Type
- Conference
- Authors
- Bae, Jae-Yoon; Seol, Hyeon-Cheon; Kwon, Young-Cheon; Hong, Seong-Kwan; Kwon, Oh-Kyong; Hwang, Seong-Hwan; Kim, Seung-Tae
- Source
- 2014 International Symposium on Integrated Circuits (ISIC) Integrated Circuits (ISIC), 2014 14th International Symposium on. :496-499 Dec, 2014
- Subject
- Components, Circuits, Devices and Systems
Computing and Processing
Engineered Materials, Dielectrics and Plasmas
Photonics and Electrooptics
Signal Processing and Analysis
Adders
Active matrix organic light emitting diodes
Simulation
Resistors
CMOS integrated circuits
CMOS technology
AMOLED
digital-to-analog converter (DAC)
large-sized AMFPD
small area DAC
source driver IC
voltage adder
- Language
- ISSN
- 2325-0631
This paper proposes a 10-bit linear gamma digital-to-analog converter (DAC) of source driver ICs for large-sized active matrix flat panel displays (AMFPDs). The proposed DAC employs the voltage adder to reduce the area of source driver IC. The voltage adder not only reduces the size of 7-bit DAC to about half by adding the fixed one least significant bit (LSB) voltage but also quickly settles the output to the target voltage by its pre-charged output. To verify the performance of the proposed DAC, the simulation and layout are performed with a 55-inch full high-definition active matrix organic light emitting diodes (AMOLED) display. The simulation result of the proposed DAC shows INL of 0.98 LSB and DNL of 0.69 LSB. The proposed DAC uses only 57.3% of number of transistors compared to the conventional 10-bit DAC with a 3-bit embedded amplifier, which results in reducing the area of source driver IC for AMFPDs significantly.