26.1: Invited Paper: The Effect of Cell Geometry and Plasma Loss on the Luminous Efficiency in ac Plasma Display Panel

Whang, Ki‐Woong; Bae, Hyun Sook; Lee, Kyoung Hoon; Kim, Tae Jun

doi:10.1889/1.2036200

Cited by 8 publications

(8 citation statements)

References 6 publications

(5 reference statements)

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“…It is shown in Fig. 5 that the peak density for the metastable xenon atoms and luminous efficiency increase drastically up to Xe mole fractions of ∼10%, and they increase slowly at high xenon mole fractions beyond the 10%, which is in good agreement with our analytical [5] and other experimental results [18]. It is noted that the spatial-averaged peak densities of the excited Xe atom are in remarkable good agreement with those of luminous efficiency at Xe mole fraction from 1% to 15%.…”

Section: Resultssupporting

confidence: 90%

“…Fig. 5 shows the spatial-averaged peak density of the excited Xe atom (which is denoted by the open squares) and luminous efficiency [18] of the test panel (which is denoted by the solid squares) versus Xe mole fractions. The peak density of excited Xe atom in the 1s 5 metastable state increase rapidly at Xe mole fractions less than 10%; however, the peak Xe density slowly increases beyond 10%.…”

Section: Resultsmentioning

confidence: 99%

“…Spatial-averaged peak density of the excited Xe atom (open squares) and luminous efficiency[18] of the test panel (solid squares) versus Xe mole fractions.…”

mentioning

confidence: 99%

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Spatiotemporal Behavior of Excited Xenon-Atom Density in Accordance With Xenon Mole Fraction to Neon in Alternating-Current Plasma Display Panels by Laser-Absorption Spectroscopy

Kim

Hong

et al. 2008

IEEE Trans. Plasma Sci.

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In this paper, spatiotemporal behavior of the excited Xe-atom density of 1s 5 metastable state was investigated by laser-absorption spectroscopy in alternating-current plasma display panel in accordance with the Xe mole fraction to Ne, which can be connected to the relative luminous efficiency over all spaces in a discharge cell. The various test panels with Xe mole fractions of 4%, 7%, 10%, and 15% to Ne have been used in this paper, in which discharge cell with T-typed indium-tin-oxide electrode and closed-barrier rib has been adopted. In this paper, the density of metastable state for the excited Xe atom is found to increase slowly beyond the Xe mole fraction of 10%. It is also accordingly noted that the luminous efficiency increases slowly beyond the Xe mole fraction of 10%, which is similar to that of the density of the excited Xe atoms in the metastable state in this paper.Index Terms-Excited Xe-atom density, laser-absorption spectroscopy, metastable state, plasma display panels (PDPs), Xe mole fraction.

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Section: Resultssupporting

confidence: 90%

Section: Resultsmentioning

confidence: 99%

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Spatiotemporal Behavior of Excited Xenon-Atom Density in Accordance With Xenon Mole Fraction to Neon in Alternating-Current Plasma Display Panels by Laser-Absorption Spectroscopy

Kim

Hong

et al. 2008

IEEE Trans. Plasma Sci.

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“…To achieve this goal improvements in the discharge efficacy, better optical coupling, and higher phosphor efficiencies have to be attained. Recently [23] the effect of the cell geometry in conjunction with moderately high Xe content was analyzed and improved to yield a luminous efficacy of 6.7 lm/W for the green emitting phosphor. Also new driving waveforms can improve the luminous efficacy in a.c. plasma displays [24].…”

Section: Remaining Problems For Plasma Displaysmentioning

confidence: 99%

Display Technology

Theis

2008

Ullmann's Encyclopedia of Industrial Chemistry

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The article contains sections titled: 1. Introduction 2. Display Categories 3. Cathode Ray Tubes (CRTs) 3.1. Color CRTs 3.2. Electron Optics 3.3. Phosphors 3.4. Trends 4. Flat Panels and Matrix Addressing 4.1. Light‐Generating (Active) Displays 4.1.1. Gas Discharge 4.1.1.1. Alternating‐Current Plasma Displays 4.1.1.2. Plasma Display Addressing 4.1.1.3. Remaining Problems for Plasma Displays 4.1.2. Cathodoluminescence 4.1.2.1. Vacuum Fluorescence Displays (VFDs) 4.1.2.2. Field‐Emission Displays (FEDs) 4.1.3. Electroluminescence 4.1.3.1. Visible Light Emitting Diodes (LEDs) 4.1.3.2. Organic and Polymer Light Emitting Diodes 4.1.3.3. Electroluminescence in Inorganic Materials 4.2. Light Modulating (Passive) Displays 4.2.1. Liquid Crystal Displays 4.2.1.1. Fundamental Operation 4.2.1.2. Simple Matrix‐Addressed LCDs 4.2.1.3. Novel Addressing Schemes for Direct‐Addressed STN LCDs 4.2.2. Reflective LCDs for Low‐Power Systems 4.2.2.1. Reflective LCDs with Polarizers 4.2.2.2. Polarizer‐Free Reflective LCDs 4.2.3. Bistable Liquid Crystal Devices 4.2.4. Active Matrix‐Addressed Liquid Crystal Displays (AMLCDs) 4.2.4.1. Fundamental Properties 4.2.4.2. Manufacturing Issues 4.2.4.3. Viewing Angle Improvements 4.2.4.4. System Performance 4.2.4.5. Large Area Liquid Crystal Displays 4.2.5. Microparticle‐Based Displays 4.2.5.1. Electrophoretic Displays 4.2.5.2. Rotating Ball Displays (Gyricon) 4.2.6. Direct View Microelectromechanical Systems 5. Projection Displays 5.1. Projection CRT 5.2. Liquid Crystal Projection 5.2.1. Transmissive Projection LCDs 5.2.2. Reflective Projection LCDs 5.3. Micromechanical Light Valve Projection

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“…Several proposals have been made to add pulse voltages on the data electrodes in synchronous with the sustain pulses [3][4][5] for the purpose of efficacy improvement. These techniques generate discharges between the X-A or Y-A electrodes in order to reduce the effective electron temperature.…”

Section: Panel Structure and Drive Waveforms During The Sustain Periodmentioning

confidence: 99%

High‐efficacy drive of spatial positive‐column‐discharge PDP with delayed D pulses

Shiga¹,

Sato²,

Kobayashi³

et al. 2008

J Soc Info Display

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Abstract— A thick‐film ceramic‐sheet PDP provides a long sustain discharge gap of 0.45 mm, enabling the use of positive column discharges. The discharges are established in the middle of the discharge space and are completely free from touching the surface of substrates. This allows for the reduction in diffusion losses of the charged particles. To further improve the efficacy, delayed D pulses are applied to the address electrodes during the sustain period. Although the pulses only draw a little current, they perturb the electric field, reducing the peak discharge current and hence resulting in higher efficacy and luminance. The efficacy and luminance increase by 35% and 38%, respectively, with the delayed D pulses. These pulses are incorporated into the contiguous‐subfield erase‐addressing drive scheme for TV application. A short gap of 70 μm between the sustain and data electrodes generates a fast‐rising discharge and allows a high‐speed addressing of 0.25 μsec. This provides 18 contiguous subfields for the full‐HD single‐scan mode, with 70% light emission duty. A luminous efficacy of 6.0 lm/W can been attained using Ne + 30% Xe 47 kPa, a sustain voltage of 320 V, and a sustain frequency of 3.3 kHz, when the luminance is 157 cd/m2. Alternatively, the panel can achieve 4.2 lm/W and 1260 cd/m2 by increasing the sustain frequency to 33 kHz.

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26.1: Invited Paper: The Effect of Cell Geometry and Plasma Loss on the Luminous Efficiency in ac Plasma Display Panel

Cited by 8 publications

References 6 publications

Spatiotemporal Behavior of Excited Xenon-Atom Density in Accordance With Xenon Mole Fraction to Neon in Alternating-Current Plasma Display Panels by Laser-Absorption Spectroscopy

Spatiotemporal Behavior of Excited Xenon-Atom Density in Accordance With Xenon Mole Fraction to Neon in Alternating-Current Plasma Display Panels by Laser-Absorption Spectroscopy

Display Technology

High‐efficacy drive of spatial positive‐column‐discharge PDP with delayed D pulses

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