• 한국표면공학회지
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• 제53권5호
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• pp.249-256
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• 2020

As the size of manufacturing equipment for LCD and OLED displays increases, replacement of existing heavy stainless steel components with light metals, such as aluminum alloys, is being more important in semiconducting and display manufacturing industries. To use aluminum alloys for components in semiconducting and display industries, it is important to develop a new anodization method for improved performance of anodic oxide films than conventional anodization method based on sulfuric acid. In this work, optimum applied current density and the best sealing methods for anodic oxide films in 3% oxalic acid were explored. Experimental results showed 2.5 A/dm2 is the best applied current density for improved hardness and dielectric breakdown voltage. Sealing of the anodic oxide films further improved their hardness, dielectric breakdown voltage and resistance to HCl, by which application of anodic oxide films become applicable for components in semiconducting and display industries.

• 한국정보디스플레이학회:학술대회논문집
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• 한국정보디스플레이학회 2003년도 International Meeting on Information Display
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• pp.463-467
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• 2003

Optical architecture and experimental results on low cost multiview autostereoscopic projection display are presented. The display, containing only one high resolution projection panel and only one projection lens is capable of displaying multiview autostereoscopic images. Key components, applied in the display are segmented mirror for splitting the projection beam and one-dimensional diffuser with slanted axis of diffusion for viewing zone formation. Image distortions, inherent in the display have been compensated with opposite sign pre-distortion of projected perspective images.

• 한국고분자학회:학술대회논문집
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• 한국고분자학회 2006년도 IUPAC International Symposium on Advanced Polymers for Emerging Technologies
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• pp.148-149
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• 2006

TFT-LCD BLU has been remarkably developed for a recent few years as TFT-LCD market is increased. Recently new BLU technologies and components are developed as more aggressively than before since TFT-LCD panel requires higher quality and resolution. Especially Samsung Electronics and LG Philips LCD of Korea are major LCD panel makers and the major optical materials of LCD BLU and panel for Samsung Electronics have been supplied by Samsung Cheil Industries. In this presentation introduction to main components of LCD BLU will be investigated details. Also characteristics and applications of optical polymers such as PMMA, PET etc for LCD display will be included and finally recent trends in optical materials for LCD BLU will be shown briefly.

• 전기전자학회논문지
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• 제18권2호
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• pp.234-239
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• 2014

This paper proposes a new automatic detection method to inspect mura defects on display film surface using morphological image processing and labeling. This automatic detection method for mura defects on display films comprises 3 phases of preprocessing with morphological image processing, Gabor filtering, and labeling. Since distorted results could be obtained with the presence of non-uniform illumination, preprocessing step reduces illumination components using morphological image processing. In Gabor filtering, mura images are created with binary coded mura components using Gabor filters. Subsequently, labeling is a final phase of finding the mura defect area using the difference between large mura defects and values in the periphery. To evaluate the accuracy of the proposed detection method, detection rate was assessed by applying the method in 200 display film samples. As a result, the detection rate was high at about 95.5%. Moreover, the study was able to acquire reliable results using the Semu index for luminance mura in image quality inspection.

• 한국실내디자인학회논문집
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• 제20권4호
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• pp.109-117
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• 2011

This study identified characteristics of Christmas window display, which is one of visual marketing methods used in department stores, using cases of department stores in Seoul and the New York and to compare the characteristics between Seoul and New York department stores in order to extract the directions and components of window display in each country. Based on the photographs of Christmas window display at the sampled Seoul and New York department stores, we analyzed the window display of each department store. From the results of analysis were drawn conclusions as follows. First, as to the direction of Christmas window display design in Seoul and New York department stores, window display was designed using various themes according to the characteristic of each department store. In case of Seoul department stores, however, specific luxury brands linked to the characteristics of the department stores displayed their products separately, but in New York department stores, various Christmas themes, images related to the department stores, and products were displayed together according to the characteristic of the department stores. Second, among display components, the formative structure and the frequency of mannequin use were different between Seoul and New York department stores. Various formative structures and diverse mannequins used in the window display of New York department stores played the role of stamping the brand image of each department store and exhibiting various designs through window display.

• 한국정보디스플레이학회:학술대회논문집
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• 한국정보디스플레이학회 2004년도 Asia Display / IMID 04
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• pp.365-368
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• 2004

We present a family of elaborate numerical models for simulation and systematic optimization of complex LCDs for demanding applications (e.g. LCD-TV). These numerical models comprise modules for solving LCD-related problems in one, two and three dimensions. The three modules feature an intuitive graphical user surface for a jump-start into modeling, a common database for a range of materials and components as well as sophisticated and proven algorithms with more than 15 years of reliable performance in the LCD-industry. Methods for obtaining data required for the modeling of key components are presented.

• 한국정보디스플레이학회:학술대회논문집
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• 한국정보디스플레이학회 2004년도 Asia Display / IMID 04
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• pp.379-382
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• 2004

Microoptics has become the key technology in liquid crystal display systems due to its capabilities of miniaturization and design flexibility. We successfully demonstrate five different microoptical components for enhancing the image quality, providing better functions, increasing light efficiency, and generating 3D images in LCD applications.

• 한국정보디스플레이학회:학술대회논문집
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• 한국정보디스플레이학회 2006년도 6th International Meeting on Information Display
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• pp.1660-1665
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• 2006

Drop placement accuracy and precision are the critical performance values of industrial ink jet deposition systems. Imperfect components and environments have severe impacts on drop placement. Litrex has identified over 120 error sources and developed engineering solutions to address the errors. In this paper, improved results using thermal compensation and stage mapping techniques are demonstrated. A recent progress in inkjet fabrication of multi-color electrophoretic display on flexible substrate with large distortion is also demonstrated.

• 한국표면공학회:학술대회논문집
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• 한국표면공학회 2015년도 추계학술대회 논문집
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• pp.234-234
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• 2015

Metallic microwires are a promising material for use as a filler in various conductive composite structures. Because of their high anisotropy in shape, a low percolation threshold could be achieved, which is beneficial to a low-cost fabrication and better electrical conductivity even under an extremely low solid content. Here we developed a facile method to fabricate the Cu (core)-Ni (shell) microwires.

• 한국정보디스플레이학회:학술대회논문집
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• 한국정보디스플레이학회 2004년도 Asia Display / IMID 04
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• pp.325-327
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• 2004

Novel surface profiler system for inspection of the display components is demonstrated In the case of the liquid crystal display, for example, not only the flatness of the alignment film but also the quality of rubbing can be inspected. Furthermore, the shape of the component such as the color filter, electrode and mirror can be inspected without removing each component.