An Output Channel Nonuniformity Compensation Driving Method in Flat Panel Display Driving Circuits

Kim, Jin-Ho; Ahn, Soon-Sung; Kwon, Chan-Keun; Kim, Seon-Yung; Lee, Jae-Sic; Choi, Byong‐Deok

doi:10.1109/jdt.2006.884695

Cited by 5 publications

(1 citation statement)

References 6 publications

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“…5, that diffuses the output errors effectively. 16) The driving method for compensating the output channel nonuniformity shares three current DACs with different output current errors for three channels, and each output channel selects one among the three DACs. Therefore, to use the output channel nonuniformity compensation method, the example in Fig.…”

Section: Architecture Of the Proposed Source Driver Icmentioning

confidence: 99%

A High-Performance Current-Mode Source Driver IC for Mobile Active Matrix Organic Light Emitting Diode Displays

Jeong¹,

Kwon²

2008

jjap

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In this paper, we describe two types of 8-bit current-mode driver ICs with a small area and good performance for applications high accuracy current-mode digital-to-analog converters (DACs), and improved channel-to-channel uniformity for active matrix organic light-emitting diode (AMOLED) displays. One uses the proposed current steering DAC (type A), which is an improved architecture of a binary-weighted DAC, and the other uses a DAC that is a combination of a thermometer-decoded of the DAC and a binary-weighted type. The measured results show that the peak integral nonlinearity (INL) is within AE0:5 the least significant bit (LSB), the peak differential nonlinearity (DNL) is within AE0:5 LSB, and the nonuniformity of output current among channels and chips is within AE0:5 LSB. The size of the driver IC is 15;820 Â 1;500 mm 2 and the total power consumption of the current-mode driver IC is less than 9 mW when the display has full-white pattern with a luminance of 150 cd/m 2 . The chip area and power consumption with the proposed current DAC are reduced by 26 and 10%, respectively, compared with those of conventional driver ICs with a fully binary-weighted DAC.

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Section: Architecture Of the Proposed Source Driver Icmentioning

confidence: 99%