Abstract: A barrier rib structure for a plasma display panel is described. The barrier rib structure formed on a back substrate has a plurality of parallel barrier ribs. Each barrier rib has a plurality of nodes composed of two side-expanded trapezoid bulges. The barrier ribs are arranged according to the nodes to form a plurality of discharge spaces between the barrier ribs and a plurality of gas channels between the nodes to connect the discharge space.

Abstract: A method for reducing dynamic false contour in a plasma display panel (PDP) comprising the steps of selecting gray scales of different visual concentration series from all of gray scales available to be shown on said PDP to form a visual concentration conversion table, selecting at least one of said visual concentration series as a virtual visual concentration series, and converting original input value of gray scale of each discharge unit into corresponding gray scales of different visual concentration series and virtual visual concentration series, while showing each field of a dynamic image on said PDP, in order to average visual concentration difference between gray scales of two adjacent discharge units on the dynamic field into a smaller one.

Abstract: A driving electrode structure of a plasma display panel is described. The driving electrode structure has a driving electrode located in one luminant cell of each pixel. The driving electrode is formed on a transparent electrode and separated by a distance from the side of the transparent electrode adjacent to the edge of the luminant cells. The driving electrode has two branches coupled to a main electrode or a side electrode at the side of the transparent electrode adjacent to the edge of luminant cells. The driving electrode approximates the discharge center of the luminant cell to improve the driving characteristic.

Abstract: A high efficiency electrode structure for a plasma display panel is described. The high efficiency electrode structure mainly comprises a comb electrode which including a main line across luminant units in row and a plurality of branches perpendicularly expanded from the main line and located between the luminant units. A transparent electrode parallel to the main line of the comb electrode is coupled to the end of the branches of the comb electrode. The end of the branches approximates the discharge center of the luminant units. The discharge electric field of luminant unit is more uniform and the sustaining voltage is lowered.

Abstract: A method and an apparatus for improving the gray-scale linearity of a plasma display. At least two types of gray-scale allocations are mixed for forming the original gray scale, or different gray scales are mixed to derive the original gray scale, so as to obtain the required brightness. Therefore, by using multiple combinations to adjust the original gray scale, the required brightness is obtained, and the gray scale linearity for all the gray scales is improved.

Abstract: An electrode structure with white balance adjustment for plasma display panel is described. The electrode structure has a comb electrode, a first transparent electrode and a second transparent electrode. The first transparent electrode and the second transparent electrode are separated from the comb electrode, respectively. Changing the profile of the first transparent electrode and the second transparent electrode increases the flexibility of the transparent electrodes. Further, the width of the first electrodes responsive to the luminous regions is adjusted to control the luminance through the first transparent electrode so that white balance of the plasma display panel is precisely corrected.

Abstract: Brightness correction apparatus and method for a plasma display, where the non-linear relationship between the gray scale and the brightness of the plasma display is considered. The brightness error is measured to build up a brightness error table. When the gray scale data of the currently displaying pixel is received, the brightness error diffusion method is applied. The weighted display brightness error of the neighboring pixel is incorporated for calculation to obtain an optimal display result. When the modified output gray scale data is derived by calculation, the brightness error table is looked up, and the display brightness error of the currently displaying pixel is thus saved to provide modification calculation for other pixels.

Abstract: A compensation process for improving color saturation and image quality of a plasma display panel (PDP) is provided, wherein a brightness of light generated from each of red, green, and blue discharge cells of each pixel on said PDP is calculated through a numeric operation according to laws of color matching. The process comprises the step of increasing or decreasing the strength of input image signals of each of the red, green, and blue discharge cells in accordance with the calculation result for adjusting brightness of the generated red, green, and blue lights so as to subtract a visible light generated by gas in each of the red, green, and blue discharge cells during gas discharging, thereby eliminating an adverse effect of the visible light on color purity and color temperature of the PDP during gas discharging. This can obtain an image on PDP having an optimum color purity and color temperature and reduce the manufacturing cost.

Abstract: A barrier rib structure for a plasma display panel is described. The barrier rib structure formed on a back substrate has a plurality of parallel barrier ribs. Each barrier rib has a plurality of nodes composed of two side-expanded trapezoid bulges. The barrier ribs are arranged according to the nodes to form a plurality of discharge spaces between the barrier ribs and a plurality of gas channels between the nodes to connect the discharge space.

Abstract: A barrier rib structure for a plasma display panel is described. The barrier rib structure formed on a back substrate has a plurality of parallel barrier ribs. Each barrier rib has a plurality of discharge spaces therein divided by separate walls. Each of the discharge spaces is connected to a small gas channel beside the barrier rib through a small connect opening.

Abstract: A method for reducing dynamic false contour in a plasma display panel (PDP) comprising the steps of selecting gray scales of different visual concentration series from all of gray scales available to be shown on said PDP to form a visual concentration conversion table, selecting at least one of said visual concentration series as a virtual visual concentration series, and converting original input value of gray scale of each discharge unit into corresponding gray scales of different visual concentration series and virtual visual concentration series, while showing each field of a dynamic image on said PDP, in order to average visual concentration difference between gray scales of two adjacent discharge units on the dynamic field into a smaller one.

Abstract: In an alternating current discharge type plasma display panel (PDP) a plurality of parallel barrier walls are formed on a top surface of a back substrate of the PDP and barrier walls are disposed corresponding to cross-points of X electrodes and Y electrodes on a front substrate of the PDP. A structure includes a plurality of discharge cells between the adjacent barrier walls having smaller width corresponding to the X and Y electrodes for forming a large first space, a plurality of non-discharge cells each between the adjacent discharge cells for forming a small second space served as a gas channel between the adjacent discharge cells, and a junction between one discharge cell and the adjacent non-discharge cell, such that energy released from a gas discharge in the discharge cells is concentrated within the discharge cells for increasing discharge efficiency.

Abstract: A method for implementing error diffusion on a plasma display panel (PDP) comprises the steps of performing an anti compensation process on a received video signal of the PDP; diffusing an error generated by a first one of a plurality of pixels to a plurality of adjacent pixels; absorbing errors generated by the plurality of adjacent pixels by the first pixel; and multiplying each of a plurality of numeric weightings and the error of each of the adjacent pixels to obtain an error function of the first pixel. This is effected in a cost effective while simple addition circuit for solving the problem of low level contouring in PDP due to insufficient gray scale of video signal in low gray scale.

Abstract: A process of effecting various anti compensation processes on input image on a plasma display panel comprises the steps of a) performing a gamma (i.e., &ggr; equal to 0.45) compensation process on a video signal received by the PDP with respect to a &ggr;; b) dividing the video signal into at least two segments based on a gray level thereof; and c) performing a variety of anti compensation processes on the video signal in respective segment. A smaller &ggr; is used in the anti compensation process with respect to the video signal in a range of low gray level for increasing the gray level in the range of low gray level. Similarly, a larger &ggr; is used in the anti compensation process with respect to the video signal in a range of high gray level for increasing a gradient in the range of high gray level, thereby obtaining a sharp image contrast, improving image quality, and rendering an enhanced image brightness.

Abstract: A compensation process for improving color saturation and image quality of a plasma display panel (PDP) comprises the steps of a) calculating the brightness of a visible light generated by environment light on PDP through performing a numeric operation according to a color mixing theory, and the corresponding light ought to be generated by each of red, green, and blue discharge cells of each of a plurality of pixels on the PDP sufficient to exclude the visible light generated by environment light on PDP; b) increasing or decreasing strength of input image signals of each of said red, green, and blue discharge cells in accordance with the result of calculation; and c) generating light from each of said red, green, and blue discharge cells to eliminate said visible light from causing an adverse effect on said PDP. This can reduce manufacturing cost without modifying the construction of PDP or performing an additional processing thereon.

Abstract: A front panel for AC plasma display panel made by: using exposure and sand blast techniques to form horizontally spaced lines of induction layer above an inner side of a glass substrate, and then making X-electrodes and Y-electrodes on the glass substrate, enabling X-electrodes and Y-electrodes to be alternatively disposed and horizontally spaced between each two adjacent lines of induction layer, and then printing a protective layer over the electrodes, enabling a straight line of discharge path to be formed between each X-electrode and Y-electrode, so that the service life of the plasma display panel can be prolonged, the intensity of electric field and UV light can be greatly improved, and the value of driving voltage can be effectively reduced.

Abstract: In an alternating current discharge type plasma display panel (PDP) a plurality of parallel barrier walls are formed on top surface of a back substrate of the PDP and barrier walls are disposed corresponding to cross-points of X electrodes and Y electrodes on a front substrate the PDP. A structure comprises a plurality of discharge cells between the adjacent barrier walls having smaller width corresponding to the X and Y electrodes for forming a large first space, a plurality of non-discharge cells each between the adjacent discharge cells for forming a small second space served as a gas channel between the adjacent discharge cells, and a junction between one discharge cell and the adjacent non-discharge cell, whereby energy released from a gas discharge in the discharge cells is concentrated within the discharge cells for increasing discharge efficiency.

Abstract: A method for dissipating heat on address electrode drive chips of plasma display panel (PDP) comprises the steps of connecting an external voltage pulse circuit to the address electrode drive chips for driving; enabling a control circuit to control a switching sequence of switches in both the external voltage pulse circuit and each address electrode drive chip; generating an external voltage level or zero volt in each address electrode drive chip and applying the same to each address electrode of the PDP; and totally transferring a switching loss in the switches of each address electrode drive chip during switching to the switches of the external voltage pulse circuit. The method can prevent heat caused by switches switching loss from accumulating on drive chips.

Abstract: A compensation process for improving color saturation and image quality of a plasma display panel (PDP) is provided, wherein a brightness of light generated from each of red, green, and blue discharge cells of each pixel on said PDP is calculated through a numeric operation according to laws of color matching. The process comprises the step of increasing or decreasing the strength of input image signals of each of the red, green, and blue discharge cells in accordance with the calculation result for adjusting brightness of the generated red, green, and blue lights so as to subtract a visible light generated by gas in each of the red, green, and blue discharge cells during gas discharging, thereby eliminating an adverse effect of the visible light on color purity and color temperature of the PDP during gas discharging. This can obtain an image on PDP having an optimum color purity and color temperature and reduce the manufacturing cost.

Abstract: In a plasma display panel (PDP) a method for prolonging useful life thereof comprises the steps of performing an experiment on red, green, and blue phosphor layers each coated on a corresponding discharge cell for calculating a gain per gray scale on the phosphor layer of each discharge cell and obtaining expressions to represent relationship with respect to the use time of each discharge cell, thereby establishing a comparison table with respect to the gains; enabling a control circuit of PDP to select one of the gains from the comparison table based on use time for dynamically adjusting strength of input video signal of each discharge cell; and compensating a reduced brightness per gray scale on the phosphor layer of each discharge cell due to increase of the use time by each of emitted red, green and blue lights. This compensates the reduced emissivity and eliminates adverse effects such as shortening of life, color temperature change, and color deviation caused by the reduced emissivity.