• 제목/요약/키워드: Plasma display panels

검색결과 157건 처리시간 0.028초

Laterally Encapsulated Cathode Structure for DC Plasma Display Panels

  • Esfahani, M.Mokhlespour;Mohajerzadeh, S.;Goodarzi, A.;Rouhi, N.;Tarighat, R.S.
    • 한국정보디스플레이학회:학술대회논문집
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    • 한국정보디스플레이학회 2005년도 International Meeting on Information Displayvol.II
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    • pp.1233-1236
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    • 2005
  • We report a novel approach for encapsulating of cathode electrodes in DC plasma pixels. Anode and cathode electrodes are laterally placed on a single substrate. The encapsulated electrode minimizes the sputtering of the cathode without significantly altering the turn-on voltage-pressure characteristics. An abnormal glow in current-voltage characteristics is also observed.

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Characteristics of the closed microhollow cathode discharge for DC Plasma Display Panels

  • Park, Hae-Il;Noh, Joo-Hyon;Ryu, Byung-Gil;Baik, Hong-Koo
    • 한국정보디스플레이학회:학술대회논문집
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    • 한국정보디스플레이학회 2000년도 제1회 학술대회 논문집
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    • pp.105-106
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    • 2000
  • The positive slope of the current-voltage characteristic at pressure up to 850 torr was obtained using the closed microhollow cathode without the individual and/or distributed ballast. This indicates that the stable parallel operation of the discharge was also achieved using the closed microhollow cathode. The parallel operation makes it possible to manufacture de plasma displays with high pressure, small discharge current, and long lifetime.

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플라즈마 디스플레이 패널의 의사윤곽 개선에 관한 연구 (The Study for Improvement of False Contour in the Plasma Display Panel)

  • 신재화;하성철;이석현
    • 전기학회논문지P
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    • 제52권3호
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    • pp.113-120
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    • 2003
  • Plasma display panels normally utilize the binary coded light emission scheme for gray scale expression. Subsequently, this expression method makes dynamic false contours. We propose the "E3DSM(enhanced 3-dimension scattering method)" that improved existing 3-d scattering method and the "HAM(histogram analysis method)" that is decided the driving schemes and subfield selections with histograms of images. Simulation results show the improving image quality.

Preparation of PDP Red Phosphors by Impregnation Method and their Luminescence Properties

  • Han, Su-Yong;Lee, Dong-Kyu;Kim, Soo-Jong;Han, Chung-Hwa;Masaki, Takaki
    • Transactions on Electrical and Electronic Materials
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    • 제9권2호
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    • pp.57-61
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    • 2008
  • The $(Y,Gd)_2O_3$:Eu phosphors were synthesized using the impregnation method in order to improve the performance of red-emitting phosphors for plasma display panels. $(Y,Gd)_2O_3$:Eu phosphors, with a particle size ranging from 150 and 200 nm, exhibited a strong red emission at around 615 nm. The emission intensity and particle size of the powders were controlled by adjusting the sintering temperature and raw material composition. The resulting particle size was very uniform and photoluminescence (PL) characteristic was excellent, being about twice that of commercial red phosphor.

Comparative Study on a Single Energy Recovery Circuits for Plasma Display Panels (PDPs)

  • Yi, Kang-Hyun;Choi, Seong-Wook;Moon, Gun-Woo
    • 전력전자학회:학술대회논문집
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    • 전력전자학회 2007년도 하계학술대회 논문집
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    • pp.159-162
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    • 2007
  • Comparative study on a low cost sustaining driver with single and dual path energy recovery circuits for plasma display panels (PDPs) is shown in this paper. The cost of PDPs has been still high and about half of the cost has been occupied by driving circuit. A simple sustaining driver is proposed to reduce the cost and size of driving circuit. The proposed driver has small number of devices and reactive components and there are two methods for charging and discharging PDPs such as single and dual path energy recovery circuits. A comparative research on two-types of energy recovery path is practiced to evaluate performance. As a result, the dual energy recovery path circuit has low power consumption, low surge current and high performance. To verify those results, experiment will be shown with 42-inch HD panel.

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Development of High Luminance Plasma Display Panels

  • Choi, Kwang-Yeol;Yoo, Eun-Ho;Ryu, Jae-Hwa
    • 한국정보디스플레이학회:학술대회논문집
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    • 한국정보디스플레이학회 2003년도 International Meeting on Information Display
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    • pp.343-346
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    • 2003
  • High Luminance PDPs have been developed using high efficient electrode structure, discharge gas and fishbone type barrier ribs. New phosphors for the good picture quality were developed. Also, New manufacturing processes such as CPBB were applied in order to reduce processing steps. High Luminance of 1,000 $cd/m^2$ was obtained in the series of 42 inch, 50 inch and 60 inch PDPs.

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플라즈마 디스플레이 패널의 방선 AND gate에 간한 연구 (A Study on the Discharge AND Gate of Plasma Display Panels)

  • 손현성;채승엽;염정덕
    • 한국조명전기설비학회:학술대회논문집
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    • 한국조명전기설비학회 2001년도 학술대회논문집
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    • pp.39-46
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    • 2001
  • The plasma display panel with the electrode structure of new discharge AND gate was developed and the driving system for experiment was developed. And discharge AND gate operation was verified. Discharge AND gate operated by the operation speed of 8$mutextrm{s}$ and the operation margin of 20V. It was known to be able to control the discharge of the adjoining scan electrode accurately. Because this method uses the DC discharge, the control of the discharge can be facilitated compared with conventional discharge AND gate. Moreover, because the imput discharge and the output discharge of AND gate are separate, the display discharge can be prevented from passing AND gate. Therefore, it is possible to apply to the large screen plasma display. And the decrease of contrast ratio does not occur because the scanning electrical discharge does not influence the picture quality.

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A parametric study on the microscale-hole-type AC PDP

  • Bae, Hyun Sook;Kim, Joong Kyun
    • Journal of Information Display
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    • 제13권3호
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    • pp.131-137
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    • 2012
  • In some previous studies, the effect of the microcapillary hole structure in the front dielectric layer was introduced. There have not yet been any report, however, on the detailed study on the discharge characteristics of the hole type, and on the optimization of the microscale hole size. In this study, the discharge characteristics of the microscale hole types in the front dielectric layer in plasma display panels were investigated through plasma numerical simulation. The numerical analysis discussed in this work may shed more light on the discharge mechanism. The modification of the structure of microscale holes is expected to improve the driving voltage and luminance, which may have been due to more energetically charged particles and Xe-excited species, which may in turn have been due to an expanded sheath electric field in the vicinity of the microholes.

Design of a new barrier rib with low dielectric constant and thermal stability

  • Lee, Chung-Yong;Hwang, Seong-Jin;You, Young-Jin;Lee, Sang-Ho;Kim, Hyung-Sun
    • 한국정보디스플레이학회:학술대회논문집
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    • 한국정보디스플레이학회 2009년도 9th International Meeting on Information Display
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    • pp.725-727
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    • 2009
  • Lowering the dielectric constant is one of the important issues for the efficiency and the power consumption in the plasma display panel (PDP) industry. This study examined the effect of the addition of ceramic filler (up to 10% of crystalline and amorphous silica, respectively) to a $B_2O_3$-ZnO- $P_2O_5$ glass matrix on the dielectric, coefficient of thermal expansion, etching behaviors and residual stress for the barrier ribs in plasma display panels. The dielectric constant of barrier ribs is affected by containing two types of $SiO_2$ filler for the barrier rib composition in PDP.

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Spatiotemporal Behavior of the Excited Xe Atom Density in the $1s_5$ Metastable State According to the Hoof-type Electrode Structure in an Alternating-current Plasma Display Pane

  • Kim, Yong-Hee;Hong, Young-June;Choi, Joon-Ho;Cho, Byeong-Seong;Uhm, Han-Sub;Choi, Eun-Ha
    • Journal of Information Display
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    • 제11권4호
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    • pp.149-153
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    • 2010
  • To improve the luminescence characteristics of high-efficiency alternating-current plasma display panels (AC-PDPs), we developed a new hoof-type electrode structure, and we studied the spatiotemporal behavior of the density of the excited Xenon atom in the $1s_5$ metastable state via laser absorption spectroscopy. Using this structure, the maximum density of the excited Xenon atom per cell was improved by 2.4 times that when the conventional electrode structure was used.