Abstract:
Disclosed is a multi-typed plasma display panel for preventing internal penetration of a seal line by forming a barrier rib in a vertical direction, in a horizontal direction or in both directions. In the multi-typed plasma display panel, a barrier rib is formed according to a cross-section in a vertical direction, in a horizontal direction or in both directions so that a seal line of the cross-section is prevented from being penetrated internally. In the horizontal direction, an auxiliary barrier rib may be further formed outside the barrier rib. Additionally, a dielectric of the rear panel is removed as large as an area separated from the cross-section in a predetermined distance so that the seal line may be formed in a condition where a glass is exposed.
Abstract:
A display apparatus processing an image frame divided into a plurality of subfields based on time, includes a motion detector detecting whether an input image is a still picture; a gradation level converter converting a brightness level of the input image into one of the gradation levels among a predetermined gradation level group for a still picture if the motion detector detects no motion in the input image, the gradation level group for the still picture formed with gradation levels having no more than a predetermined reference number of subfields which are different in a state of luminance with respect to the corresponding subfields in adjacent gradation levels. With this configuration, the present invention provides a display apparatus and a control method thereof to prevent brightness represented by gradation levels from being displayed inaccurately due to the load of a display line.
Abstract:
Provided are an apparatus and a method for driving a self-emission display panel. A sustain pulse (STP) controller calculates an automatic power control (APC) level of image data having an input grayscale and outputs a STP corresponding to the calculated APC level. A sub-field (SF) controller which applies a dithering method to each SF corresponding to the input grayscale to generate SF data for expressing the input grayscale so as to reduce the number of cells simultaneously emitting light in a SF. A sustain/scan driver generates sustain/scan pulses from the output STP to drive the self-emission display panel. An address electrode driver generates an address driving signal corresponding to the input grayscale from the generated SF data to drive the self-emission display panel.
Abstract:
The present invention relates to a method for manufacturing a spacer used in a flat panel display. At the first printing process, a printing mask produces a primary spacer on a substrate. After removing the printing mask, a supporting plate having a hole to excess the primary spacer is placed on the substrate and then the printing mask is rearranged on the supporting plate. A subsequent printing process is applied repeatedly to the printing mask with the supporting plate to extend the height of the primary spacer to the amount of the thickness of the supporting plate, thereby producing an elongated finished spacer.