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Journal of Information Display

The Korean Infomation Display Society (KIDS)

  • Quarterly
  • /
  • 1598-0316(pISSN)
  • /
  • 2158-1606(eISSN)

Domain

  • Electricity/Electronics ＞ Display

Aim & Scope

The Journal of Information Display is a major multidisciplinary open access journal that publishes research on the theory and practice of information displays. Journal of Information Display is the international journal of the Korean Information Display Society (KIDS). The journalfocuses specifically on display field, publishing the latest advances in all aspects of display techniques developed from materials, as well as the application of display techniques in devices, and the system-to-user experience. It aims to function as a main platform where display researchers in disparate expertise can share their knowledge, find the latest achievements, and collaborate with one another, which advances display technology and the industry. Topics of interest to the journal include, but are not limited to: • Liquid Crystal Display (LCD) • Light-emitting Diodes (LED) for Display • Organic LED (OLED) • Flexible and Stretchable Display • Quantum Dot (QD) Technology for Display • Large Area Display • Electroluminescence (EL) • Phosphors for Display • Displays for Augmented Reality and Virtual Reality • Liquid Crystal Technology • and other related technologies

https://mc.manuscriptcentral.com/tjid KSCI KCI SCOPUS

Volume 9 Issue 3

  1. Jeong, Ju-Young;Hong, Moon-Pyo 1
    PDF KSCI
    With the aim of creating a high-quality display system with value-added functions, we designed a current mode multiplexer for LTPS TFT devices. The multiplexers had less than 1 volt logic swing, and speed improvement was evident compared with that of conventional CMOS architecture. We refined the multiplexer to achieve a more stable current steering operation. By using the versatility of the multiplexer, a new NAND/AND and NOR/OR logic gates were designed through the simple modification of signal connections. Two micron LTPS TFT parameters were used during the HSPICE simulation of the circuits.
  2. Nam, Gil-Mo;Kwon, Myoung-Seok 8
    PDF KSCI
    A novel non-alkoxide sol-gel process for synthesizing Ga-doped ZnO thin film on glass was derived for possible use as a transparent electrode in flat-panel displays, using zinc acetate dehydrate as the starting material. The structural and electrical properties of thin films have been characterized as functions of Ga addition and post-heat-treatments. Their carrier density, Hall mobility, and optical transmittance were measured and discussed herein to explain the characteristics of the sol-gel-derived Ga-doped ZnO thin film on glass.
  3. Ko, Tae-Woon;Kim, Jae-Chang;Lee, Joun-Ho;Choi, Hyun-Chul;Ji, Seung-Hoon;Choi, Jung-Min;Lee, Chul-Hun;Lee, Gi-Dong 12
    PDF KSCI
    A bent electrode structure is proposed in the super in-plane switching (S-IPS) liquid crystal (LC), as it can reduce the response time without loss of transmittance in the bright state. The electrode angle in each position of the bent electrode was optimized to simultaneously achieve high transmittance and fast response time. The electro-optical characteristics of the proposed LC cell structure were experimentally compared with those of the conventional cell. It was observed that the response time became over 8% shorter without loss of transmittance when the proposed bent structure was applied.
  4. Cho, Min-Ju;Kim, Young-Min;Ju, Byeong-Kwon;Choi, Dong-Hoon 16
    PDF KSCI
    A novel class of conjugated dendritic molecules bearing N-hexyl-substituted carbazoles as peripheral groups and various conjugative aromatic cores was synthesized through Heck coupling and the Horner-Emmons reaction. A multilayered structure of ITO/PEDOT:PSS (30 nm)/emitting material (50 nm)/BCP (10 nm)/$Alq_3$ (10 nm)/LiF (1 nm)/Al (100 nm) was employed to evaluate the synthesized dendritic materials. The electroluminescence spectrum of the multilayered device made of 3Cz predominantly exhibited blue emissions. Similar emissions were observed in the PL spectra of it's the device's thin film. The multilayered devices made of 3Cz, 3BCz, and 4BCz showed luminance values of 6,250 cd $m^{-2}$ at 24 V, 3,000 cd $m^{-2}$ at 25 V, and 1,970 cd $m^{-2}$ at 36 V, respectively. The smallest molecule, 3Cz, which bore three carbazole peripheral groups, exhibited a blue-like emission with CIE 1931 chromaticity coordinates of x = 0.17 and y = 0.21.
  5. Galbadrakha, Ragchaa;Bang, Hwan-Seok;Baek, Heume-Il;Lee, Chang-Hee 23
    PDF KSCI
    This paper reports that well-balanced white emission with three primary colors can be achieved with a simple white organic light-emitting diode (WOLED) structure of ITO / $\alpha$-NPD (50 nm) / $\alpha$-NPD: Btp2Ir(acac) (8 wt%, 6 nm) / $\alpha$-NPD (5 nm) / BCP (3 nm) / $Alq_3$: C545T (0.5 wt%, 10 nm) / $Alq_3$ (40 nm) / LiF (0.5 nm) / Al (100 nm). The external quantum efficiency of the device reached 3.8% at a current density (luminance) of 4.6 mA/$cm^2$ (310 cd/$m^2$), and the maximal luminance of the device reached 19,000 cd/$m^2$ at 11.5 V. The insignificant blue shift of the emitting color with an increasing current density can be attributed to the narrowing of the exciton formation zone width.
  6. Kim, Beong-Ju;Moon, Chelo-Hee 28
    PDF KSCI
    Low sustained voltage $(V_s)$ and high luminous efficiency (lumen/Watts) are required for the enhanced performance of an AC PDP. Both are not realized in the same condition, however, because luminous efficiency decreases when the sustained voltage is lowered in most cases. In this study, the three design factors in the front panel of a PDP, i.e., the thickness and position of the bus electrode and the thickness of the dielectric layer, were chosen to investigate how they affect the sustained voltage and the luminous efficiency, and to find a way to optimize them. Two values were given to each of the three design factors, and experiments were done via full factorial design, i.e., with a total of eight conditions, using a 3-in.diagonal test panel. The changes in the sustained voltage and the luminous characteristics were explained in connection with the discharge characteristics of the PDP cells.
  7. Hong, Byoung-Hee 33
    PDF KSCI
    A simple ray tracing model is developed to establish the relationship between the distributions of observed visible light and the excited Xe species in a PDP cell. The ray tracing model can obtain the density distribution of the excited Xe species. It shows the two independent discharge modes created during a single period of sustaining discharge. The maximum density of excited Xe species is located about $148{\mu}m$ away from the center of the gap between two sustaining electrodes. We also found the loss rate of VUV photons by comparing the luminance profile predicted in our theoretical model from experimental results. According to calculations based on our model, only about 22 percent of the photons can impinge the phosphor layer.