Novel impulsive driving schemes for 120Hz LCD panels
Two new impulsive driving technologies for 120Hz liquid crystal display (LCD) panels are proposed to improve moving picture quality. One technology generates the dark frame using an adder and a shifter simply without using any look up tables (LUTs). It results in a cost effective impulsive scheme wi...
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| Published in: | Journal of Information Display Vol. 9; no. 1; pp. 1 - 5 |
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| Main Authors: | , , , , , , |
| Format: | Journal Article |
| Language: | English |
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Taylor & Francis Group
01-01-2008
한국정보디스플레이학회 |
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| Abstract | Two new impulsive driving technologies for 120Hz liquid crystal display (LCD) panels are proposed to improve moving picture quality. One technology generates the dark frame using an adder and a shifter simply without using any look up tables (LUTs). It results in a cost effective impulsive scheme with motion picture quality comparable to that of high speed driving. The other is a backlight flashing method designed to avoid ghost images. The issue of ghost images caused by the slow response time of liquid crystal (LC) is solved by means of 120Hz overdriving and 120Hz backlight flashing. Using the perceived blur edge time (PBET) metric, measured moving picture response time (MPRT) values were 10.8ms and 4.4ms, respectively, while that of 120Hz high speed driving was 10.1ms. |
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| AbstractList | Two new impulsive driving technologies for 120Hz liquid crystal display (LCD) panels are proposed to improve moving picture quality. One technology generates the dark frame using an adder and a shifter simply without using any look up tables (LUTs). It results in a cost effective impulsive scheme with motion picture quality comparable to that of high speed driving. The other is a backlight flashing method designed to avoid ghost images. The issue of ghost images caused by the slow response time of liquid crystal (LC) is solved by means of 120Hz overdriving and 120Hz backlight flashing. Using the perceived blur edge time (PBET) metric, measured moving picture response time (MPRT) values were 10.8ms and 4.4ms, respectively, while that of 120Hz high speed driving was 10.1ms. Two new impulsive driving technologies for use in 120Hz liquid crystal display (LCD) panels are proposed to improve moving picture quality. One technology generates the dark frame using an adder and a shifter simply without using any look up tables (LUTs). It results in a cost effective impulsive scheme with motion picture quality comparable to that of high speed driving. The other is a backlight flashing method designed to avoid ghost images. The issue of ghost images caused by the slow response time of liquid crystal (LC) is solved by means of 120Hz overdriving and 120Hz backlight flashing. Using the perceived blur edge time (PBET) metric, measured moving picture response time (MPRT) values were 10.8ms and 4.4ms, re-spectively, while that of 120Hz high speed driving was 10.1ms. KCI Citation Count: 0 |
| Author | Berkeley, Brian H. Shin, Byung Hyuk Kim, Sang Soo Nam, Hyoungsik Kim, Nam Deog Oh, Kwan Young Oh, Jaeho |
| Author_xml | – sequence: 1 givenname: Hyoungsik surname: Nam fullname: Nam, Hyoungsik organization: LCD Technology Center, LCD Business , Samsung Electronics Co., Ltd – sequence: 2 givenname: Jaeho surname: Oh fullname: Oh, Jaeho organization: LCD Technology Center, LCD Business , Samsung Electronics Co., Ltd – sequence: 3 givenname: Byung Hyuk surname: Shin fullname: Shin, Byung Hyuk organization: LCD Technology Center, LCD Business , Samsung Electronics Co., Ltd – sequence: 4 givenname: Kwan Young surname: Oh fullname: Oh, Kwan Young organization: LCD Technology Center, LCD Business , Samsung Electronics Co., Ltd – sequence: 5 givenname: Brian H. surname: Berkeley fullname: Berkeley, Brian H. organization: LCD Technology Center, LCD Business , Samsung Electronics Co., Ltd – sequence: 6 givenname: Nam Deog surname: Kim fullname: Kim, Nam Deog organization: LCD Technology Center, LCD Business , Samsung Electronics Co., Ltd – sequence: 7 givenname: Sang Soo surname: Kim fullname: Kim, Sang Soo organization: LCD Technology Center, LCD Business , Samsung Electronics Co., Ltd |
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| Copyright | Copyright Taylor & Francis Group, LLC 2008 |
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| References | Lee B. W (CIT0001) 2001; 32 Feng X. F (CIT0007) 2006; 14 Lee J. W (CIT0003) 2006; 37 Hong S. K (CIT0006) 2006; 37 Yamada Y. (CIT0005) 2005; 227 Kim T. S (CIT0004) 2006; 37 Oka K. (CIT0008) 2005; 815 Song J. K (CIT0002) 2004; 35 |
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| Snippet | Two new impulsive driving technologies for 120Hz liquid crystal display (LCD) panels are proposed to improve moving picture quality. One technology generates... Two new impulsive driving technologies for use in 120Hz liquid crystal display (LCD) panels are proposed to improve moving picture quality. One technology... |
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| SubjectTerms | Backlight flashing Frame repeating Ghost Impulsive driving LCD MPRT PBET 전기공학 |
| Title | Novel impulsive driving schemes for 120Hz LCD panels |
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