• 한국정보디스플레이학회:학술대회논문집
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• 2006.08a
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• pp.1605-1608
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• 2006

The contrast ratio, brightness, and uniformity of S-IPS panel, whose alignment process was employed by ion-beam-alignment (IBA) technology, were improved significantly compared with the convention rubbing's panel, because the light leakage has been reduced in dark state effectively. The IBA technology could generate a panel whose pretilt angle was stable and low after post-treatment process.

• 한국정보디스플레이학회:학술대회논문집
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• 2005.07b
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• pp.922-925
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• 2005

Inkjet printing technology is a highly proprietary process. We have evaluated the possibility of using inkjet technique to prepare color filters. Product specification for TV application was used as a template to examine process capability. Technical aspects of ink composition, jetting ability, and surface interaction were discussed.

• Journal of the Korean Institute of Telematics and Electronics
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• v.25 no.7
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• pp.807-818
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• 1988

This paper proposes new algorithms for the estimation of displacement vector and moving object extraction using difference picture. First, the relations between the boundary of moving objects in two consecutive image and the boundary of difference picture regions are analyzed, then displacement vector estimation algorithm is proposed. Using the estimated displacement vector, moving objects are directly extracted from difference picture. Since the proposed algorithms do not process gray-valued image, they have a short processing time and are suitable to real time processing. From the experimental results, we observed that, if difference picture is wel extracted, the proposecd algorithms work well even in the circumstances of complex background, fast or slow motion, rotation etc., including occlusion where is not moving area.

• 한국정보디스플레이학회:학술대회논문집
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• 2005.07a
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• pp.525-527
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• 2005

The LED light source has many excellent advantages for the application of LCD backlight module. As we know, the operational temperature can significantly influence the characteristics of LEDs. Heat can decrease LED's output light intensity and make its dominant wavelength (${\lambda}d$) drift. These two factors make display's color temperature change and induce different NTSC results. Here, we perform an important relation between NTSC and the above two factors of LED-LCD display.

• 한국정보디스플레이학회:학술대회논문집
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• 2005.07a
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• pp.799-802
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• 2005

This paper described a 2.2" $QCIF^+$ ($176{\times}RGB{\times}220$) active matrix organic light-emitting diode display (AMOLED) using low-temperature poly-silicon (LTPS) technology. We have designed the OLED pixel to match the OLED material characteristic with COG specification and optimized pixel structure to improve color gamma adjustment and simplify signal complexity.

• Korean Journal of Child Studies
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• v.19 no.1
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• pp.169-182
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• 1998

This study investigated the verbal responses of kindergarten children to fantasy and realistic picture books. The subjects were 60 five-year-old children divided into small groups of 4 children each. Each group was read four picture books of which two were fantasy and two were realistic. Transcripts of the children's responses were analyzed for number, content, and type of verbal response. Mean scores and standard deviations were measured and the data were analyzed by repeated one-way ANOVA. Results showed that the children showed (1) more verbal responses to the fantasy than to the realistic picture books. (2) They gave more verbal responses to fantasy picture books than to realistic books in terms of character, scene, event, and vocabulary. They also gave more verbal responses to fantasy picture books than to realistic books in terms of informative, heuristic, and imaginative types.

• International Journal of Knowledge Content Development & Technology
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• v.1 no.1
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• pp.25-37
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• 2011

This study analyzes circulation statistics of television tie-in picture books from the Wake County Public Library System in North Carolina to determine their popularity among patrons. Caldecott winning picture books were used as a point of comparison. This study also examined OPAC holdings from North Carolina public libraries to determine television tie-in picture book popularity among collection builders. The findings of the study show that television tie-in picture books are found to some degree in the vast majority of North Carolina public libraries, and are more popular than award winners in the Wake County system.

• Journal of Families and Better Life
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• v.29 no.3
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• pp.99-118
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• 2011

The purpose of this study was to investigate the dual readership represented in the use of picture books. The study was conducted through in-depth interviews and observation of 9 families including 5-year-olds. The findings of this study were as follows. First, mothers exercised their exclusive right to choose books for their children. They usually used online bookstores, libraries, or book rental shops by consulting other mothers or merchandisers. On the other hand, fathers and children seldom involved themselves in the selection of picture books. Second, children preferred interesting books, while mothers favored complete series of books, which were usually for educational purposes. Third, dynamic interaction between mother and child was occurred during their daily routine of reading picture books together. Five-year-olds seemed to be transitioning into independent readers, and mothers showed that they were also readers of picture books when they appreciated and enjoyed them.

• Korean Journal of Cognitive Science
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• v.23 no.2
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• pp.165-184
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• 2012

To investigate how the valence of unattended background picture modulates perceptual processing of a target letter, participants were required to detect a target letter among six letters superimposed on an IAPS picture. Perceptual load was manipulated by varying the difficulty of letter detection, and behavioral results showed more accurate and faster detection responses at the low-load condition than at the high-load condition. The analysis of ERP data of control condition at which six letters were presented without an IAPS picture showed perceptual load effects on mean amplitude of N1 and P1 ERP components. At experimental condition including an IAPS picture, interaction between valence and perceptual load was observed on mean amplitude of N1 at posterior visual processing area, and the amplitude difference between low-load condition and high-load condition was larger on a negative background picture than on a neutral background picture. The results suggest that more attentional capacity might be consumed by a negative picture than by a neutral picture, and suggest that unattended affective picture is processed automatically and influence the early perceptual processing of target stimulus.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.19 no.8
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• pp.441-448
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• 2018

This study examined the effects of Children's Social Development and Picture Representation Ability on Wordless Picture Books Activities. The study subjects were 30 children aged 3 years in K kindergarten: 15 in the experimental group and 15 in the comparative group. The experimental group was exposed to Wordless Picture Books Activities for 8 weeks. Image representation ability and social development test were conducted in both groups before and after the study. The after Wordless Picture Books Activities were found to be effective in linking various colors, detailed descriptions, harmonious spatial representations, various shapes, subject-related representations, uniqueness of representations, completeness of figure representations, and language representations. These study results are expected to validate the educational value of the wordless picture books meaningfully as teaching-learning materials in the field of early childhood education.