A Low-Power Data Driving Method With Enhanced Charge Sharing Technique for Large-Screen LCD TVs
- Authors
- Kim, Dong-Un; Kim, Jong Seok; Choi, Byong-Deok
- Issue Date
- Apr-2015
- Publisher
- Institute of Electrical and Electronics Engineers
- Keywords
- Charge sharing; large-screen and high-format display; LCD TVs; low power
- Citation
- IEEE/OSA Journal of Display Technology, v.11, no.4, pp.346 - 352
- Indexed
- SCIE
SCOPUS
- Journal Title
- IEEE/OSA Journal of Display Technology
- Volume
- 11
- Number
- 4
- Start Page
- 346
- End Page
- 352
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/157572
- DOI
- 10.1109/JDT.2015.2392757
- ISSN
- 1551-319X
- Abstract
- The charge sharing technique is well known and widely used for low-power consumption in TFT-LCDs. However, it does not work so well as the screen size becomes larger and the frame frequency and display format become higher. The theoretical power saving efficiency can reach 50%, but, for a 55-in diagonal Full-HD format LCD TV, it drops below 30%. In order to address the degraded power saving efficiency of the conventional charge sharing technique for large-screen high-format LCD TVs, we propose a novel charge sharing technique with a panel design and a driving method. The proposed charge sharing technique enhances the power saving efficiency up to 43% from the previous 28% even for a large-screen LCD TV such as the 55-in diagonal Full-HD format. In particular, the proposed technique is found to be well suited for the oxide-TFT technology, which is very promising for next-generation large-screen LCD TVs.
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