55.1: Invited Paper: High‐Luminance and Highly Luminous‐Efficient AC‐PDP with DelTA Cell Structure

Abstract

To improve the performance of PDPs, we developed an AC-PDP with the Delta Tri-color Arrangement (DelTA) cell structure and arc-shaped electrodes. The experimental panel has a pixel pitch of 1.08 mm and luminous efficiency of 3 lm/W at a luminance of 200 cd/m 2 . Moreover, its peak luminance can be greater than 1000 cd/m 2 .

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

“…However, the luminous efficiency of PDPs is still below 2 lm/W, which is considerably lower than those of other displays. There have been many attempts to improve the luminous efficiency of PDPs, such as using gas mixture with high Xe concentration [1], delta arrangement cell with a meander barrier rib [2], waffle-structured rib with 'T'-shaped electrode [3], driving waveform with auxiliary short pulse [4,5].…”

Cell geometry designs for efficient plasma display panels

“…2 that the electrode-shaping geometry has a higher visible light generation efficiency than the dielectric-shaping geometry. Our analyses indicate that 4 is higher for the electrode-shaping design. The region of high excitation and consequently high UV emission directly below the upper dielectric layer is closer to the phosphor layer in the case of the electrode-shaping design, so that more emitted UV photons reach the phosphor.…”

“…Analyses indicate that the modification of the lower dielectric layer shape and, consequently, of the phosphor layer shape in the structure of Fig. 1͑f͒ results in lower 4 . This result could be expected, since most of the visible photons emitted from the vertical sides of the phosphor layer are lost.…”

“…Recent progress of PDP technology development and manufacturing has been remarkable. 3,4 However, there are still problems that need to be resolved to popularize the PDP as a home commodity. One of the most critical issues in ongoing PDP research is the improvement of the luminous efficiency, which is still low compared to conventional cathode ray tube displays.…”

“…These designs modified the arrangement of individual cells of the display or the three-dimensional structure of the electrodes. 4,5 Other methods were based on rf discharge 6 or a different mixture composition. 7 However, the effect of simpler two-dimensional variations of the PDP cell geometry on the performance of the device has not been investigated in detail, although some two-dimensional variations have been proposed.…”