High‐frequency drive of high‐Xe‐content PDPs for high efficiency and low‐voltage performance

Minami, Tetsuo; Shiga, Tomokazu; Mikoshiba, S.; Oversluizen, G.

doi:10.1889/1.1811443

Cited by 17 publications

(18 citation statements)

References 7 publications

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“…Apart from higher sustain voltages, a fast discharge development can be stimulated by other design or driving characteristics. For instance, by an adapted capacitive cell design, a special sustain waveform or a high sustain frequency [14]- [16]. In all cases, a correspondence between a fast discharge development and high discharge efficiency is found.…”

Section: A Power Input and Discharge Efficiencymentioning

confidence: 98%

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Diagnostics of PDP micro-discharges

Oversluizen

Dekker

2006

IEEE Trans. Plasma Sci.

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Plasma display panel emission measurements are correlated with panel efficacy trends, and directions for the improvement of the discharge efficiency are derived. An increase of the ratio of the phosphor emission in the visible to the Xe emission in the infrared indicates an increased Xe excitation efficiency. Also, the time dependence and the spatial distribution of the Xe emission are important discharge characteristics. Experiments reveal that a high panel efficacy is obtained, especially for design and driving conditions that govern a fast and spatially distributed discharge development. A high sustain voltage 200 V causes a "high efficiency discharge mode." It is proposed that in this mode, the cathode sheath is not, or is incompletely, formed during the rise of the discharge current. Then the electric field in the discharge cell is dominated not by the space charges, but by the externally applied voltage. The effective discharge field is lowered, resulting in a lower effective electron temperature and more efficient Xe-excitation. Under the fast discharge buildup conditions also the electron-heating efficiency increases due to a decrease of the ion heating losses in the cathode sheath. A high sustain voltage combines well with a high Xe content gas mixture, that further increases the discharge efficiency. Changes in the phosphor to Xeand Ne-emission ratio show that for higher Xe content, a lower electron temperature accounts for a more efficient Xe excitation. Further, the use of a TiO 2 -layer underneath the phosphor causes an increase of the ratio of the phosphor emission in the visible to the Xe emission in the infrared, i.e., an increased Xe excitation efficiency. As a result, a high efficacy of 5 lm/W and a high luminance of 5000 cd m 2 have been realized in a 4-in color plasma display test panel design with a 50% Xe in Ne gas mixture, a TiO 2 -layer underneath the phosphor, and a high sustain voltage 260-290 V.

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Section: A Power Input and Discharge Efficiencymentioning

confidence: 98%

“…This condition is denoted as the high efficiency mode. The high efficiency mode is normally observed for higher sustain voltages 200 V at 50 kHz sustain frequency, but the high efficiency mode region can be stretched to lower voltages for higher sustain frequency operation [16].…”

Section: A Power Input and Discharge Efficiencymentioning

confidence: 99%

Diagnostics of PDP micro-discharges

Oversluizen

Dekker

2006

IEEE Trans. Plasma Sci.

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“…Also under a fast discharge build-up condition the electron-heating efficiency increases, due to a decrease of the ion heating losses in the cathode sheath [5]. The high efficiency mode is usually found for sustain voltages >200V at a sustain frequency of 50 kHz, but the high efficiency mode region can be stretched to lower voltages for higher frequency operation [6]. The dotted line in FIG.…”

Section: Methodsmentioning

confidence: 97%

18.1: Invited Paper: High Efficacy PDP Design

Oversluizen

Dekker

2006

SID Symposium Digest

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High efficacy plasma display panel characteristics are discussed. A high efficacy is obtained, especially for design and driving conditions that govern a fast discharge development. High Xe-content panels can be operated in addressed condition in this "high efficiency fast discharge mode" at sustain voltages 200 V. The influence of wall losses is discussed. The increasing loss of charged particles for increasing resolution, when the discharge is contained in a smaller volume, causes increasing discharge voltages. The decrease of the efficacy is however relatively small. For proper designs equally high efficacy and luminance values are obtained for pixel pitches of 1.08 mm and 0.7 mm.

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“…Our experimental result has shown that, in the case of the sustain discharge gap larger than the barrier rib height, the luminous efficiency can vary depending on the operating frequency, which has not been reported yet. Even though the effect of the operating frequency on the conventional short-discharge-gap case(discharge gap < barrier rib height) has been previously reported, it is not directly applicable to the wide-gap-discharge characteristics on the operating frequency [9], [10]. Fig.…”

Section: Methodsmentioning

confidence: 99%

Effects of Operating Frequency on Luminance Characteristics of Wide-Gap AC Plasma Display Panel

Kim

Tae

2008

IEEE Trans. Plasma Sci.

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The three-electrode microdischarge characteristics of ac plasma display panels are analyzed with a wide-sustaindischarge gap of 180 µm. In particular, the luminance and consumed-power variations are examined as parameters of the operating frequency. It is found that the luminance per unit pulse decreases, and simultaneously, the consumed power per unit pulse increases with an increase in the operating frequency. For the wide-gap structure, the sustain voltage increases when increasing the operating frequency, thus causing the power consumption per unit pulse to be increased. However, the luminance per unit pulse decreases when increasing the sustain voltage, even though the power consumption per unit pulse increases with the sustainvoltage increase. As a result, it is observed that the self-erasing discharge between the sustain and address electrodes caused by the short pulsewidth under high frequency affects the luminance and consumed power. Due to the self-erasing discharge, the sustain voltage increases, and the discharge shrinkage phenomenon affecting the luminance characteristics occurs under high frequency that is up to 200 kHz with a wide-sustain-discharge gap of 180 µm.Index Terms-Discharge shrinkage, frequency effect, luminance, luminance per unit pulse, luminous efficiency, self-erasing discharge, wide-sustain gap (180 µm) structure.

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High‐frequency drive of high‐Xe‐content PDPs for high efficiency and low‐voltage performance

Cited by 17 publications

References 7 publications

Diagnostics of PDP micro-discharges

Diagnostics of PDP micro-discharges

18.1: Invited Paper: High Efficacy PDP Design

Effects of Operating Frequency on Luminance Characteristics of Wide-Gap AC Plasma Display Panel

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