An opportunistic source line driving scheme for low power mobile TFT-LCD driver IC

Jae Goo Lee; Jae Hyuck Woo; Bai Sun Kong; Young Hyun Jun; Chil Gee Lee; Im Soo Kang; Bong Nam Kim; Jin Tae Kim

doi:10.1109/EDSSC.2005.1635335

An opportunistic source line driving scheme for low power mobile TFT-LCD driver IC

Jae Goo Lee
, Jae Hyuck Woo
, Bai Sun Kong
, Young Hyun Jun
, Chil Gee Lee
, Im Soo Kang
, Bong Nam Kim
, Jin Tae Kim

Department of Semiconductor Systems Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

An opportunistic source line driving (OSLD) scheme is proposed for use in mobile TFT_LCD driver ICs (T-LDIs). in OSLD scheme, the operation of the source drivers of a T-LDI is controlled by the equivalence of RGB color data for adjacent pixels. That is, one source driver drives the neighboring source lines as well as the corresponding one when the color data of adjacent pixcels are identical to each other. With this scheme, all the source drivers associated with the neighboring source lines can be completely turned off, allowing the reduction of static and dynamic current of these drivers. Test chip was fabricated in a 5-V/0.8-um 2.5 V/0.25-um triple-metal CMOS process, and the experimental result shows that the power reduction of 12%- 21% was obtained with die size overhead less than 0.5%.

Original language	English
Title of host publication	2005 IEEE Conference on Electron Devices and Solid-State Circuits, EDSSC
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	565-566
Number of pages	2
ISBN (Print)	0780393392, 9780780393394
DOIs	https://doi.org/10.1109/EDSSC.2005.1635335
State	Published - 2005
Event	2005 IEEE Conference on Electron Devices and Solid-State Circuits, EDSSC - Howloon, Hong Kong Duration: 19 Dec 2005 → 21 Dec 2005

Publication series

Name	2005 IEEE Conference on Electron Devices and Solid-State Circuits, EDSSC

Conference

Conference	2005 IEEE Conference on Electron Devices and Solid-State Circuits, EDSSC
Country/Territory	Hong Kong
City	Howloon
Period	19/12/05 → 21/12/05

Access to Document

10.1109/EDSSC.2005.1635335

Cite this

Lee, J. G., Woo, J. H., Kong, B. S., Jun, Y. H., Lee, C. G., Kang, I. S., Kim, B. N., & Kim, J. T. (2005). An opportunistic source line driving scheme for low power mobile TFT-LCD driver IC. In 2005 IEEE Conference on Electron Devices and Solid-State Circuits, EDSSC (pp. 565-566). Article 1635335 (2005 IEEE Conference on Electron Devices and Solid-State Circuits, EDSSC). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/EDSSC.2005.1635335

@inproceedings{9df1724e9ce347bfab74e8a06fdb2ae0,

title = "An opportunistic source line driving scheme for low power mobile TFT-LCD driver IC",

abstract = "An opportunistic source line driving (OSLD) scheme is proposed for use in mobile TFT\_LCD driver ICs (T-LDIs). in OSLD scheme, the operation of the source drivers of a T-LDI is controlled by the equivalence of RGB color data for adjacent pixels. That is, one source driver drives the neighboring source lines as well as the corresponding one when the color data of adjacent pixcels are identical to each other. With this scheme, all the source drivers associated with the neighboring source lines can be completely turned off, allowing the reduction of static and dynamic current of these drivers. Test chip was fabricated in a 5-V/0.8-um 2.5 V/0.25-um triple-metal CMOS process, and the experimental result shows that the power reduction of 12\%- 21\% was obtained with die size overhead less than 0.5\%.",

author = "Lee, \{Jae Goo\} and Woo, \{Jae Hyuck\} and Kong, \{Bai Sun\} and Jun, \{Young Hyun\} and Lee, \{Chil Gee\} and Kang, \{Im Soo\} and Kim, \{Bong Nam\} and Kim, \{Jin Tae\}",

year = "2005",

doi = "10.1109/EDSSC.2005.1635335",

language = "English",

isbn = "0780393392",

series = "2005 IEEE Conference on Electron Devices and Solid-State Circuits, EDSSC",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

pages = "565--566",

booktitle = "2005 IEEE Conference on Electron Devices and Solid-State Circuits, EDSSC",

note = "2005 IEEE Conference on Electron Devices and Solid-State Circuits, EDSSC ; Conference date: 19-12-2005 Through 21-12-2005",

}

Lee, JG, Woo, JH, Kong, BS, Jun, YH, Lee, CG, Kang, IS, Kim, BN & Kim, JT 2005, An opportunistic source line driving scheme for low power mobile TFT-LCD driver IC. in 2005 IEEE Conference on Electron Devices and Solid-State Circuits, EDSSC., 1635335, 2005 IEEE Conference on Electron Devices and Solid-State Circuits, EDSSC, Institute of Electrical and Electronics Engineers Inc., pp. 565-566, 2005 IEEE Conference on Electron Devices and Solid-State Circuits, EDSSC, Howloon, Hong Kong, 19/12/05. https://doi.org/10.1109/EDSSC.2005.1635335

An opportunistic source line driving scheme for low power mobile TFT-LCD driver IC. / Lee, Jae Goo; Woo, Jae Hyuck; Kong, Bai Sun et al.
2005 IEEE Conference on Electron Devices and Solid-State Circuits, EDSSC. Institute of Electrical and Electronics Engineers Inc., 2005. p. 565-566 1635335 (2005 IEEE Conference on Electron Devices and Solid-State Circuits, EDSSC).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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AU - Lee, Jae Goo

AU - Woo, Jae Hyuck

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AU - Lee, Chil Gee

AU - Kang, Im Soo

AU - Kim, Bong Nam

AU - Kim, Jin Tae

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N2 - An opportunistic source line driving (OSLD) scheme is proposed for use in mobile TFT_LCD driver ICs (T-LDIs). in OSLD scheme, the operation of the source drivers of a T-LDI is controlled by the equivalence of RGB color data for adjacent pixels. That is, one source driver drives the neighboring source lines as well as the corresponding one when the color data of adjacent pixcels are identical to each other. With this scheme, all the source drivers associated with the neighboring source lines can be completely turned off, allowing the reduction of static and dynamic current of these drivers. Test chip was fabricated in a 5-V/0.8-um 2.5 V/0.25-um triple-metal CMOS process, and the experimental result shows that the power reduction of 12%- 21% was obtained with die size overhead less than 0.5%.

AB - An opportunistic source line driving (OSLD) scheme is proposed for use in mobile TFT_LCD driver ICs (T-LDIs). in OSLD scheme, the operation of the source drivers of a T-LDI is controlled by the equivalence of RGB color data for adjacent pixels. That is, one source driver drives the neighboring source lines as well as the corresponding one when the color data of adjacent pixcels are identical to each other. With this scheme, all the source drivers associated with the neighboring source lines can be completely turned off, allowing the reduction of static and dynamic current of these drivers. Test chip was fabricated in a 5-V/0.8-um 2.5 V/0.25-um triple-metal CMOS process, and the experimental result shows that the power reduction of 12%- 21% was obtained with die size overhead less than 0.5%.

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M3 - Conference contribution

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Lee JG, Woo JH, Kong BS, Jun YH, Lee CG, Kang IS et al. An opportunistic source line driving scheme for low power mobile TFT-LCD driver IC. In 2005 IEEE Conference on Electron Devices and Solid-State Circuits, EDSSC. Institute of Electrical and Electronics Engineers Inc. 2005. p. 565-566. 1635335. (2005 IEEE Conference on Electron Devices and Solid-State Circuits, EDSSC). doi: 10.1109/EDSSC.2005.1635335

An opportunistic source line driving scheme for low power mobile TFT-LCD driver IC

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