• Title/Summary/Keyword: Differential display

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Design and Implementation of MDDI Protocol for Mobile System (모바일 시스템을 위한 MDDI 프로토콜 설계 및 구현)

  • Kim, Jong-Moon;Lee, Byung-Kwon;Jung, Hoe-Kyung
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.17 no.5
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    • pp.1089-1094
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    • 2013
  • In this study, we propose how th implement a MDDI(Mobile Display Digital Interface) protocol packet generation method in software. MDDI protocol is widely used in mobile display device. MDDI protocol packets are generated by software within micro processor. This method needs the minimum hardware configuration. In order to implementation of this method, we design a hardware platform with a high performance microprocessor and a FPGA. The packets generated by software within microprocessor are converted into LVDS signals, and transmitted by hardware within FPGA. This study suggests the benefits of the way how software can easily create a variety of packet. But, this proposed method takes more time in packet transmission compared to the traditional method. This weakness remains as a future challenge, which can be soon improved.

Implementation of a Client Display Interface for Mobile Devices via Serial Transfer (모바일 직렬 전송방식의 클라이언트 디스플레이 인터페이스 구현)

  • Park Sang-Woo;Lee Yong-Hwan
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2006.05a
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    • pp.522-525
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    • 2006
  • Recently, mobile devices support multi-functions such as 3D game, wireless internet, moving pictures, DMB, GPS, and PMP. Bigger size of display device is indispensable to support these functions and higher speed of the interface is needed. However, conventional parallel interfaces between processor and display nodule are not competent enough for that high speed transfers. High-speed serial interface is beginning to appear as an alternative for parallel interface. The advantages of the serial interface are high bandwidth, small number of interconnections, low-power consumption, and good quality of electro-magnetic interference. In this paper, we implement serial interface and use it for a display module. LVDS is used for PHY layer and a defined packet is used for link layer. The feature of the implemented serial interface is the reduced number of interconnections with enough bandwidth.

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A Questionnaire Study of Connotative Meanings of the Show Window Display Types in Optical Shops of Optometry Students in Seoul (서울지역 안경광학과 재학생 집단의 안경원 쇼윈도 디스플레이 유형에 대한 감성 의미 설문 조사)

  • Lee, Ji Hye;Kim, Young Hwa;Kim, Dal-Young
    • Journal of Korean Ophthalmic Optics Society
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    • v.16 no.3
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    • pp.219-228
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    • 2011
  • Purpose: The aim of this study was to analyze objectively customers' connotative meanings dependent on show window display types in optical shops. Methods: This survey was conducted on optometry students in Seoul in their 20's. We collected examples of the show window displays in Korean optical shops and deduced their representative types. After drawing out connotative meanings by the semantic differential method, we determined the connotative meanings correspondent to each show window display types by using a questionnaire and statisticl analyses. Results: Respondents chose 'clean and simple', 'luxury and simple', and 'folksy and practical' as connotative meanings of open-type, small amount-type, mass amount-type and commercial-type show window displays, respectively. Conclusions: Analyzing induced connotative meanings and correspondents' preference, we think that the small amount-type show window is the most appropriate display for college students consumer group.

EINSTEIN'S CONNECTION IN 5-DIMENSIONAL ES-MANIFOLD

  • Hwang, In Ho
    • Korean Journal of Mathematics
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    • v.25 no.1
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    • pp.127-135
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    • 2017
  • The manifold $^*g-ESX_n$ is a generalized n-dimensional Riemannian manifold on which the differential geometric structure is imposed by the unified field tensor $^*g^{{\lambda}{\nu}}$ through the ES-connection which is both Einstein and semi-symmetric. The purpose of the present paper is to prove a necessary and sufficient condition for a unique Einstein's connection to exist in 5-dimensional $^*g-ESX_5$ and to display a surveyable tnesorial representation of 5-dimensional Einstein's connection in terms of the unified field tensor, employing the powerful recurrence relations in the first class.

Synthesis and Characterization of Novel Fused Aromatic Semiconductors

  • Zhao, Qinghua;Park, Jong-Won;Kim, Yun-Hi;Kwon, Soon-Ki
    • 한국정보디스플레이학회:학술대회논문집
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    • 2006.08a
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    • pp.1193-1197
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    • 2006
  • The novel oligomers were synthesized by Grignard reaction, the suzuki coupling reaction, etc. The oligomers were characterized by Infrared (IR), Mass spectrometer (MS). Their thermal properties were investigated by differential scanning calorimetry (DSC) and Thermogravimetric analysis (TGA). The new oligomers showed high thermal stability above $300^{\circ}C$.

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EINSTEIN'S CONNECTION IN 3-DIMENSIONAL ES-MANIFOLD

  • HWANG, IN HO
    • Korean Journal of Mathematics
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    • v.23 no.2
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    • pp.313-321
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    • 2015
  • The manifold $^*g-ESX_n$ is a generalized n-dimensional Riemannian manifold on which the differential geometric structure is imposed by the unified field tensor $^*g^{{\lambda}{\nu}}$ through the ES-connection which is both Einstein and semi-symmetric. The purpose of the present paper is to prove a necessary and sufficient condition for a unique Einstein's connection to exist in 3-dimensional $^*g-ESX_3$ and to display a surveyable tnesorial representation of 3-dimensional Einstein's connection in terms of the unified field tensor, employing the powerful recurrence relations in the first class.