| Presentation | 2017-01-27 Power Reduction of OLED by Tone Mapping Based on Helmholtz-Kohlrausch effect Soshi Kitahara, Tomokazu Shiga, |
|---|---|
| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | The Helmholtz-Kohlraush effect is a visual characteristics that humans perceive color having higher saturation as brighter. In the proposed method, the pixel value is reduced by increasing the saturation while maintaining the lightness. To suppress excessive increase of saturation, the increase rate of saturation k is changed according to lightness. As k increases, power reduction increases but the picture quality degrades. From the subjective evaluation experiment for the natural images, it was found that the maximum k is 2.0 to suppress the image degradation. In this case, the power reduces 8.0%. We also confirmed the effectiveness of the proposed method by using a smart phone having 4.5-in. AMOLED. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | mobile terminal / power reduction / visual characteristic |
| Paper # | EID2016-41 |
| Date of Issue | 2017-01-19 (EID) |
| Conference Information | |
| Committee | EID / ITE-IDY / IEE-EDD / IEIJ-SSL / SID-JC |
|---|---|
| Conference Date | 2017/1/26(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Tokushima Univ. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Joint Meeting of Emissive/Non-emissive Displays |
| Chair | Tomokazu Shiga(Univ. of Electro-Comm.) / Keiichi Betsui(Hitachi) |
| Vice Chair | Mutsumi Kimura(Ryukoku Univ.) / Yuko Kominami(Shizuoka Univ.) / Yoshihide Fujisaki(NHK) |
| Secretary | Mutsumi Kimura(NTT) / Yuko Kominami(Tokyo Inst. of Tech.) / Yoshihide Fujisaki(Shizuoka Univ.) |
| Assistant | Rumiko Yamaguchi(Akita Univ.) / Hiroyuki Nitta(Japan Display) / Mitsuru Nakata(NHK) / Takashi Kojiri(ZEON) / Ryosuke Nonaka(Toshiba) |
| Paper Information | |
| Registration To | Technical Committee on Electronic Information Displays / Technical Group on Information Display / Technical Group on Electron Devices / * / Society for Information Display Japan Chapter |
|---|---|
| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Power Reduction of OLED by Tone Mapping Based on Helmholtz-Kohlrausch effect |
| Sub Title (in English) | |
| Keyword(1) | mobile terminal |
| Keyword(2) | power reduction |
| Keyword(3) | visual characteristic |
| 1st Author's Name | Soshi Kitahara |
| 1st Author's Affiliation | The University of Electro-Communications(UEC) |
| 2nd Author's Name | Tomokazu Shiga |
| 2nd Author's Affiliation | The University of Electro-Communications(UEC) |
| Date | 2017-01-27 |
| Paper # | EID2016-41 |
| Volume (vol) | vol.116 |
| Number (no) | EID-430 |
| Page | pp.pp.105-108(EID), |
| #Pages | 4 |
| Date of Issue | 2017-01-19 (EID) |