• 한국정보디스플레이학회:학술대회논문집
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• 2005.07b
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• pp.1008-1011
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• 2005

In this study, the field emission display with carbon nanotube emitter is developed for the large size HDTV application. Two structures for electron beam focusing are developed on the typical top-gate cathode. The metal grid and focusing gate structure are proved to be effective for the focusing. The data switching voltage for the double gate structure is lower than 30V which is competitive value in respect of the cost for driver electronics. The brightness and color gamut are comparable to those of the commercial product such as CRT.

• Proceedings of the KSR Conference
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• 2010.06a
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• pp.2076-2088
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• 2010

MMI (Man Machine Interface) is the system that monitors the operating condition of the ATP/ATC/ATS systems and receives defined information from ATP/ATC/ATS systems through the interface with On-board systems. Based on the data from the ATP/ATC/ATS system, MMI can display the information and status of the train to secure safe operation. It is possible for the display mode and quantities of MMI to be improved by the customer's demand, and it can be designed as the same structure of existing devices for the driver. The ERTMS is Regular Safety Standards of high-speed railroad. It is fundamental structure of European Rail Control System which train control, safety and operate facilities. In this paper, I study requirements of ERTMS form which design function each section of MMI and application at ATP/ATC/ATS combined Train Constrol System.

• 한국정보디스플레이학회:학술대회논문집
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• 2000.01a
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• pp.153-154
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• 2000

Large size poly-Si TFT-LCDs have been fabricated using p-channel thin film transistors for notebook PC application. We have designed and implemented the data sampling circuit and gate drivers that operate with low power consumption and high reliability. The gate driver has a redundant structure. We have realized the uniform and excellent display quality comparable to that of CMOS module. The reliability of panel is investigated and discussed by measuring the bias stability of transistors.

• 한국정보디스플레이학회:학술대회논문집
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• 2005.07a
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• pp.285-288
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• 2005

A 2.8 inch fully integrated SOP employing a high performance LTPS CMOS TFT technology has been developed for mobile display applications. The LCD module is directly interfaced with 3V 6-bit RGB source via timing control circuitry. The integrated data driver comprises a 6-bit hybrid type DAC with low power analog buffer.

• 한국정보디스플레이학회:학술대회논문집
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• 2009.10a
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• pp.1081-1085
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• 2009

We have already developed EMI reducing techniques using lossless compression by vertically differential EMI suppression method (VDE[1]). It applies lossless modulo reduction and data bit mapping optimization for low voltage differential signaling (LVDS) transmission lines, that reduces the probability of transient bit and EMI by 12 dB [6][7]. We also improved and optimized the VDE for low power LCD interface. With this modified VDE algorithm[8], the developed FPGA was measured the reduction of the power consumption of LCD circuit by more than 15 % compared to the conventional methods in the case of 14-in LCD with SXGA resolution. The VDE algorithm is based on the total image systematic approach. In the VDE method, the present image signals are subtracted for the 1H delayed image signals and transferred to a column driver through a PCB. As the vertical correlations for image signals are very high, we expected that most of the vertically subtracted image signals remain 0 level and transient cycles become very long. As a result, the power consumption and EMI are extremely reduced for the transferred image signals on a PCB. In this paper, we discussed our proposed method by emphasizing the fact that systematic approach are important based on not only display point of view but also total system point of view.

• 한국정보디스플레이학회:학술대회논문집
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• 2005.07b
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• pp.1035-1037
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• 2005

2.32-inch $320{\times}350$ TFT-LCD with high resolution (206PPI) for advanced mobile phones could be successfully developed. The compact pixel design based on PMOS SLS technique is used to achieve this high resolution. Gate driver and part of data driver are integrated onto the glass substrate. High brightness (170cd) and contrast ratio (400:1) were obtained with very low flickering and crosstalk levels.

• 전자공학회논문지 IE
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• v.43 no.4
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• pp.76-82
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• 2006

Wheels' Direction Indicator, an electronic direction displaying system, provides a driver with information of wheels' direction in real time. The purpose of this study is to develop the system showing on LCD and LED with measuring steering wheel's movement. This system that applies a steering wheel's movement to the data process part will reduce inconvenience that confirms wheels' direction before throughout the open window before driving a car in parking lot.

• Proceedings of the KSR Conference
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• 2005.11a
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• pp.1005-1009
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• 2005

The On Board Computer System (ORCS) used for rolling stocks is one of the core equipments in trains, which deals with collecting real-time data of a train to display and record the train's statuses, control the train, and support the driver and maintenance function. Resides, due to high reliability and high speed communication required lately for various electronics including signal1ing devices, train protection system, and multimedia, the necessity of a more robust train communication network is on the lise. This study aims at understanding the technological trend of the current train communication network in order to rapidly cope with the tendency above and providing fundamental data for designing a more advanced communication network for high-speed trains hereafter.

• Journal of Information Technology Services
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• v.22 no.3
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• pp.85-100
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• 2023

The development of Airside Vehicle Control System(AVCS) at Gimpo Airport aims to reduce ground safety accidents in movement area and improve airport operation efficiency and safety management service quality. The vehicle is controlled by a brake controller RTK-antenna and On-Board Diagonostics(OBD) module. Location data is transmitted to a nearby communication base station through a Wi-Fi router and the base station is connected to the AVCS by an optical cable to transmit location data from each vehicle. The vehicle position is precisely corrected to display information using the system. The system allows airport operators to view registered information on aircraft and vehicles and monitor their locations speeds and directions in real time. When a vehicle approaches a dangerous area alarm warnings and remote brake control are possible to prevent accidents caused by carelessness of the driver in advance.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.16 no.12
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• pp.1313-1323
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• 1991

n this thesis CAM(content Addressable Memory) generator and graphic display tool for run-plot sequence in automatic generation of CAM are presented. We show that implementing the layout generation, graphic menu, mouse driver, and data structure by using the basic classes is clear and easy in modification than the conventional procedural language. For the implementation of generator which is independent of design rule or process, we use the parameterized cell so that basic cell can be changed according to user's inputs. and perform the layout by means of placement and routing using pitch mathching. Finally, the display of CIF which generated and constitution of graphic menu for total run-plot sequence are explained.