• Title/Summary/Keyword: Display Design

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The Development and Originality of Wind Chimes of the Goryeo Dynasty (고려시대 풍탁(風鐸)의 전개와 독창성)

  • Lee, Young-sun
    • Korean Journal of Heritage: History & Science
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    • v.52 no.2
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    • pp.292-307
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    • 2019
  • Buddhists have always tended to adorn and embellish Buddhist statues and their surrounding spaces in order to exhibit the grandeur and sublime nature of the Buddha. The various kinds of splendid instruments and implements used in such ornamentation are collectively called jangeomgu in Korean. Thus, the term jangeomgu encompasses articles used to decorate Buddhist statues, halos, and baldachin, as well as Buddhist banners and wind chimes, which are generally hung outside a building. Wind chimes are still widely used at Buddhist temples. In China, judging from various structures such as the Wooden Stupa of Yongningsi in Luoyang and the Dunhuang Caves, wind chimes began to be used around the sixth century. As for Korea, Buddhism was first introduced from China during the Three Kingdoms Period, and Koreans accordingly began to build Buddhist temples and buildings. It would appear that wind chimes came to be used around the time that the first temples were built. The oldest extant wind chime in Korea is the gilt-bronze wind chime of Baekje, discovered at the Mireuksa Temple Site in Iksan. In general, Korean wind chimes dating from the Three Kingdoms Period are classified into two general types according to their shape and elevation, i.e., those shaped like a Buddhist bell and those shaped like a trapezoid. As these two forms of wind chimes have influenced each other over time, those made during the Goryeo dynasty, having inherited the style, structure, and design of the preceding period, display such features. At the same time, the artisans who produced wind chimes pursued technical development and adopted free, yet not extravagant, designs. In particular, Goryeo wind chimes are characterized by original designs created through exchanges with other Buddhist art forms of the same period, such as the embossed lotus design band of Goryeo bells; the bullmun design, which served to display the grandeur of the royal family; the samhwanmun design, which consisted of decorating the interior of a Goryeo incense burner with three holes; Sanskrit designs; and designs inspired by the windows and doors of stone pagodas. In this way, the production of Goryeo wind chimes developed with a focus on purpose while being free of formal constraints. This study started out from the fact that the largest number of Korean wind chimes were produced during the Goryeo dynasty. Therefore, research on wind chimes should be based on those of the Goryeo dynasty, especially since fewer relevant studies have been conducted compared to studies on other forms of Buddhist art. For the purposes of this study, the reasons for the production of wind chimes will be examined first, followed by an examination of the various styles of Korean wind chimes. Then, based on the findings of this investigation, the development and characteristics of the wind chimes produced during the Goryeo dynasty will be explored for each period.

Fault Tolerant Design of Universal Soft Controller for Advanced Power Reactor (신형원전(APR+)을 위한 범용소프트제어기의 내고장성 설계)

  • Ye, Song-Hae;Lyou, Joon
    • Journal of the Institute of Electronics and Information Engineers
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    • v.49 no.9
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    • pp.279-286
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    • 2012
  • Recently, design of Universal Soft Controller(USC) has been applied to the advanced control room for nuclear power plant. USC is software-based manual control means to control safety components as well as non-safety components in the highly-integrated control room. Therefore, design feature of USC is essential for the implementation of a single workstation in the advanced control room. The traditional control room is replaced by computer-driven consolidated operator interfaces. Considering our design has further reduced the probability of USC spurious signals by requiring two distinct operator control actions to generate any control signal. The reality of USC does not increase the probability of reactor trip because the probability of spurious USC signal is negligible. Universal Soft Control represents a significant evolution in nuclear I&C/HSI System. USC integrates the indicators and controls from multiple divisions into a single integrated visual display unit(VDU) based HSI(Human System Interface). In order to prevent adverse influence on safety function performance from USC failure, ESFAS signals are applied to safety components or functions. In addition, safety manual switches have priority over USC's signals. Therefore, spurious USC signals can be momentarily blocked by selecting a soft control command from the safety VDU.

A Study on the Tangible Interface Design System -With Emphasis on the Prototyping & Design Methods of Tangibles - (실체적 인터페이스 디자인 시스템에 관한 연구 - 텐저블즈의 설계 및 프로토타입 구현을 중심으로 -)

  • 최민영;임창영
    • Archives of design research
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    • v.17 no.2
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    • pp.5-14
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    • 2004
  • Introducing human capacities of control and sensation which have been overlooked into Human-Computer Interaction(HCI), Ubiquitous computing, Augmented Reality and others have been researched recently. New vision of HCI has embodied in Tangible User Interface(TUI). TUI allows users to grasp and manipulate bits with everyday physical object and architectural surface and also TUI enables user to be aware of background object at the periphery of human perception using ambient display media such of light, sound, airflow and water movement. Tangibles, physical object which constitutes TUI system, is the physical object embodied digital bit. Tangibles is not only input device but also the configuration of computing. To get feedback of computing result, user controls the system with Tangibles as action and the system represents reaction in response to User's action. User appreciates digital representation (sound, graphic information) and physical representation (form, size, location, direction etc.) for reaction. TUI's characters require the consideration about both user's action and system's reaction. Therefore we have to need the method to be concerned about physical object and interaction which can be combined with action, reaction and feedback.

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LED driver IC design for BLU with current compensation and protection function (전류보상 및 보호 기능을 갖는 BLU용 LED Driver IC설계)

  • Lee, Seung-Woo;Lee, Jung-Gi;Kim, Sun-Yeob
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.21 no.10
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    • pp.1-7
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    • 2020
  • In recent years, as LED display systems are actively spread, study on effective control methods for an LED driver for driving the systems has been in progress. The most representative among them is the uniform brightness control method for the LED driver channel. In this paper, we propose an LED driver IC for BLU with current compensation and system protection functions to minimize channel luminance deviation. It is designed for current accuracy within ±3% between channels and a channel current of 150 mA. In order to satisfy the design specifications, the channel amplifier offset was canceled out by a chopping operation using a channel-driving PWM signal. Also, a pre-charge function was implemented to minimize the fast operation speed and luminance deviation between channels. LED error (open, short), switch TR short detection, and operating temperature protection circuits were designed to protect the IC and BLU systems. The proposed IC was fabricated using a Magnachip 0.35-um CMOS process and verified using Cadence and Synopsys' Design Tool. The fabricated LED driver IC has current accuracy within ±1.5% between channels and 150-mA channel output characteristics. The error detection circuits were verified by a test board.

A Study on the Purchase of Foreign Brand Clothing according to Fashion Involvement. (유행몰입에 따른 해외 브랜드 의복 구매에 관한 연구)

  • 이선재
    • Journal of the Korean Society of Costume
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    • v.33
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    • pp.105-115
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    • 1997
  • The fashion clothing market is changing due to the appearance of new consumer group. And the import of foreign brand clothing is highly increasing. The purpose of this study is to help the domestic apparel companies set better market-ing strategy by studying the relation between fashion ivolvement and the purchase be-havior of foreign brand clothing. Subjects were 498 new generation women living Seoul metropolitan area. Data were obtained by questionnaire and analyzed by SPSS package. The main findings of this study are as follows; 1. The result of factor-analysis of the fashion involvement's variables were classified into 8 factors. 2. Consumer's main purpose of buying new clothes were To coordinate clothes with each other' 3. Consumers evaluated every clothing factors: color fit etc of foreign brand very highly except the price. 4. The factor that consumers consider most when choosing clothes is color design fit de-tail texture and brand knowledge in order. 5. the advertizing method that consumers care the most was shop and window display. 6. 'Because design and color are good' were the most important factor as motive of buying foreign brand clothing. 7. Most consumers still bought domestic brand clothing. 7. Most consumers still bought domestic brand clothing. 8. Monthly income and purchase of foreign brand were positively related 9. All variables 2of fashion involment were positively related with the purchase of foreign brand 10. Consumers with higher monthly income did not care much about 'Weather or occasion' when buying clothes. And consumers living in Kangnam(compared with consumers linving in Kangbuk) cared more about personality and bought more foreign brand. 'Social and econ-omic status' were highly related with monthly income residence and purchase of foreign brand clothing 11. Older consumers cared more about color figure texture and fit than younger con-sumer. Monthly income were positively re-lated with design color and figure. Residence were highly related with color and figure. Pur-chase of foreign brand clothing were positively related with design color figure and fit. 12. Younger consumers cared more about brand knowledge. And the purchase of foreign brand clothing were positively related with de-sign detail and brand knowledge. 13. Consumers with foreign brand's purchase experience showed negative relation between ;foreign brand's purchasing experience' and 'Weather or occasion' 14. Consumers with no foreign brand's pur-chasing experience showed negative relation between fashion innovativeness and figure. 15. Consumers with no foreign brand's pur-chasing experience showed positive relation between fit and fashion opinion exchange. The study shows that colors is most import-ant factor in purchasing clothes. And imported brands are very strong in terms of proposing various and unique colors. not all brands succeeded in Korea. Those brands that failed to group consumers have the following problems. Therefore it is critical to review the above factors when importing the foreign brand.

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Applying Work Domain Analysis for Ecological Interface Design of Safety Monitoring System in the Urban Railway Station (도시철도 역사 내 안전 감시 시스템의 생태학적 인터페이스디자인(EID)을 위한 작업 영역 분석(WDA) 적용)

  • Lee, Suk-Won;Lee, Bong-Geun;Back, Ji-Seung;Jo, Seong-Sik;Myung, Ro-Hae
    • Journal of the Korean Society for Railway
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    • v.13 no.3
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    • pp.264-270
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    • 2010
  • This paper presents an application of the Ecological Interface Design (EID) theoretical framework for developing an optimal display of railway safety monitoring system (SMS) in stations. Especially, Work Domain Analysis (WDA) which is the preceding research for EID was conducted. This study proceeds as follows: First, urban railway SMS in stations was defined as a system boundary for WDA, and work environment for station personnels was analysed through Abstraction Hierarchy (AH). AH represents five levels (Functional Purpose, Values and Priority Measures, Purpose-related Functions, Object-related Process, Physical Object) of informations that station personnels obtain from work environment, and Work Domain Model (WDM) was derived as a result of the AH. To confirm how well WDM represents the real work environment of SMS, Scenario Mapping was conducted with experts who has been working as a station personnel for more than ten years. Lastly, thirteen additional information requirements that are not provided by the existing SMS as well as all the information that are provided by the existing SMS were extracted using confirmed WDM. These information requirements can be used as essential information for EID of urban railway SMS.

The Study of Usability Evaluation in the GUI of Mobile Computing - Based on Benchmark Testing in the interface design of WIPI (Mobile Computing의 GUI 개발에 있어 사용성 평가 연구 - WIPI 인터페이스 디자인을 위한 Benchmark Testing을 중심으로 -)

  • 정봉금;송연승
    • Archives of design research
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    • v.17 no.1
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    • pp.49-62
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    • 2004
  • Due to the recent surge of wireless Internet and concurrent development of the end user terminal devices having standardized graphical user interface(GUI) and unified operation mechanism for better interactivity in information representation and ease of use, various efforts on the improvement of GUI is widely recognized as one of the key factors that will usher in the next stages of the wireless Internet for the users. Especially, improved usability along with unique visual effect are considered to be the key elements for GUI considering the rapid improvement of the resolution and color on the end user handset devices; thus, the study and research on the subject of GUI is expected to increase along with the wireless Internet using smart phones. User interface of the wires Internet end user handsets will have a definite and significant effect on the user interaction as well as productivity. Domestically, wireless Internet service providers and GUI design companies are making various efforts in producing a common GUI models for standardized operation scheme and improved graphical display capabilities of the hand phones, PDAs and smart phones. In the study, Nokia 3650 model and Microsoft Orange SPV model were chosen as test devices for usability comparison and data collection to collect directional benchmark data in developing next generation smart phone user interface integrating PDAs and phones. The mail purpose of this study is to achieve the most efficient user accessibility to WAP menu through intensive focus on developing WIPI WAP menu having most effective usability for the users in their twenties and thirties. The result of this study can also be used as the base research materials for WAP service development, VM browser development and PDA browser development. The result of this study along with the evaluation model is expected to provide effective analysis materials on the subject of user interface to the developers of the wireless Internet user devices, GUI designers and service planners while short listing key factors to consider in developing smart phones therefore serving as the GUI guideline of WIPI phones.

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Experience Design Guideline for Smart Car Interface (스마트카의 인터페이스를 위한 경험 디자인 가이드라인)

  • Yoo, Hoon Sik;Ju, Da Young
    • Design Convergence Study
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    • v.15 no.1
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    • pp.135-150
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    • 2016
  • Due to the development of communication technology and expansion of Intelligent Transport System (ITS), the car is changing from a simple mechanical device to second living space which has comprehensive convenience function and is evolved into the platform which is playing as an interface for this role. As the interface area to provide various information to the passenger is being expanded, the research importance about smart car based user experience is rising. This study has a research objective to propose the guidelines regarding the smart car user experience elements. In order to conduct this study, smart car user experience elements were defined as function, interaction, and surface and through the discussions of UX/UI experts, 8 representative techniques, 14 representative techniques, and 8 locations of the glass windows were specified for each element. Following, the smart car users' priorities of the experience elements, which were defined through targeting 100 drivers, were analyzed in the form of questionnaire survey. The analysis showed that the users' priorities in applying the main techniques were in the order of safety, distance, and sensibility. The priorities of the production method were in the order of voice recognition, touch, gesture, physical button, and eye tracking. Furthermore, regarding the glass window locations, users prioritized the front of the driver's seat to the back. According to the demographic analysis on gender, there were no significant differences except for two functions. Therefore this showed that the guidelines of male and female can be commonly applied. Through user requirement analysis about individual elements, this study provides the guides about the requirement in each element to be applied to commercialized product with priority.

Holographic phase gratings in back- and frontlights for LCD's

  • Bastiaansen, C.W.M.;Heesch, C. van;Broer, D.J.
    • 한국정보디스플레이학회:학술대회논문집
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    • 2006.08a
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    • pp.421-421
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    • 2006
  • The light and energy-efficiency of classical liquid crystal displays is notoriously poor due to the use of absorption-based linear polarisers and colour filters. For instance, the light efficiency of PVAL polarisers is typically between 40 and 45 % and the colour filters have a typical efficiency below 35 % which results in a total light and energy-efficiency of the display below 10 %. In the past, a variety of polarizers were developed with an enhanced efficiency in generating linearly polarized light. Typically, these polarizers are based on the polarisationselective reflection, scattering or refraction of light i.e. one polarisation direction of light is directly transmitted to the LCD/viewer and the other polarization direction of light is depolarised and recycled which results in a typical efficiency for generating linearly polarized light of 70-85 %. Also, special colour filters have been proposed based on chiral-nematic reactive mesogens which increase the efficiency of generating colour. Despite the enormous progress in this field, a need persists for improved methods for generating polarized light and colour based on low cost optical components with a high efficiency. Here, the use of holographic phase gratings is reported for the generation of polarized light and colour. The phase grating are recorded in a photopolymer which is coated onto a backor frontlight for LCDs. Typically the recording is performed in the transmisson mode or in the waveguiding mode and slanted phase gratings are generated with their refractive index modulation at an angle between 20o and 45o with the normal of the substrate. It is shown that phase gratings with a high refractive index modulation and a high efficiency can be generated by a proper selection of the photopolymer and illumination conditions. These phase gratings coupleout linearly polarized light with a high contrast (> 100) and the light is directed directly to the LCD/viewer without the need for redirection foils. Dependent on the type of phase grating, the different colours are coupled-out at a slightly different angle which potentially increases the efficiency of classical colour filters. Moreover, the phase gratings are completely transparent in direct view which opens the possibility to use them in frontlights for LCDs. Holographic polarization gratings posses a periodic pattern in the polarization state of light (and not in the intensity of light). A periodic pattern in the polarization direction of linearly polarized light is obtained upon interference of two circularly polarized laser beams. In the second part of the lecture, it is shown that these periodic polarization patterns can be recorded in a linear photo-polymerizable polymer (LPP) and that such an alignment layer induces a period rotation in the director of (reactive and non-reactive) liquid crystals. By a proper design, optical components can be produced with only first order diffraction and with a very high efficiency (>0.98). It is shown that these diffraction gratings are potentially useful in projection displays with a high brightness and energy efficiency

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Design of a Small Area 12-bit 300MSPS CMOS D/A Converter for Display Systems (디스플레이 시스템을 위한 소면적 12-bit 300MSPS CMOS D/A 변환기의 설계)

  • Shin, Seung-Chul;Moon, Jun-Ho;Song, Min-Kyu
    • Journal of the Institute of Electronics Engineers of Korea SD
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    • v.46 no.4
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    • pp.1-9
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    • 2009
  • In this paper, a small area 12-bit 300MSPS CMOS Digital-to-Analog Converter(DAC) is proposed for display systems. The architecture of the DAC is based on a current steering 6+6 segmented type, which reduces non-linearity error and other secondary effects. In order to improve the linearity and glitch noise, an analog current cell using monitoring bias circuit is designed. For the purpose of reducing chip area and power dissipation, furthermore, a noble self-clocked switching logic is proposed. To verify the performance, it is fabricated with $0.13{\mu}m$ thick-gate 1-poly 6-metal N-well Samsung CMOS technology. The effective chip area is $0.26mm^2$ ($510{\mu}m{\times}510{\mu}m$) with 100mW power consumption. The measured INL (Integrated Non Linearity) and DNL (Differential Non Linearity) are within ${\pm}3LSB$ and ${\pm}1LSB$, respectively. The measured SFDR is about 70dB, when the input frequency is 15MHz at 300MHz clock frequency.