摘要:
A video processing apparatus includes: a subfield conversion portion (2) which converts an input image into light emission data for each of subfields; a motion vector detection portion (3) which detects a motion vector using at least two or more input images before and after in time; a subfield regeneration portion (4) which generates rearranged light emission data for each of the subfields by spatially rearranging the light emission data for each of the subfields according to the motion vector; and a subfields correction portion (5) which corrects the rearranged light emission data such that light is emitted in at least one non-emission subfield temporally in advance of at least one emission subfield for which an immediately preceding non-emission period is longest.
摘要:
A direct-view display comprises a transparent substrate and an array of MEMS light modulators formed on the transparent substrate, wherein each of the light modulators can be driven into at least two states. A control matrix is formed on the transparent substrate for transmitting data and actuation voltages to the array. A controller controls the states of each of the light modulators in the array, The controller obtains a plurality of subframe data sets from a memory, wherein the plurality of sub-frame data sets correspond to an image frame, each sub-frame data set is associated with a coded weight, and each sub-frame data set indicates desired states of light modulators in multiple rows and multiple columns of the array. The controller outputs the plurality of sub-frame data sets according to an output sequence, stored at least partially in memory, to drive light modulators into the states indicated in the sub-frame data sets; and controls illumination of each of the respective sub-frame data sets of the plurality of sub-frame data sets based on the coded weight associated with the respective sub-frame data set.
摘要:
The invention relates to a method and a device for noise reduction in a pulse-width controlled image display device. A monitoring of whether the brightness of several sequential image points is brighter than a given brightness threshold value occurs. If not the case, the delayed but otherwise unchanged input signal is supplied to the display. If, on the other hand, the brightness of several sequential image points is less than the given threshold brightness value, a mean value generation for the brightness values of several sequential image points occurs and said mean value is supplied to the display.
摘要:
Method and apparatus for driving a plasma display device to improve a gradation display during the plasma display device is driven at a relatively high frame frequency. The driving method includes separating a unit frame of an input image signal into first and second subfield groups; and deciding a gradation of each of the subfield groups to display the gradation in a first frame frequency when a minimum gradation level of the first or second subfield group is equal to or below a first reference level, and to display the gradation in a second frame frequency when the minimum gradation level exceeds the first reference level.
摘要:
Provided is a method of driving a discharge display panel, in which sub fields of a unit frame are allocated different gray-scale weights and are time-division driven. Here, at least one other sub field is present between a sub field given a maximum gray-scale weight and a sub field given a second largest gray-scale weight.
摘要:
In a plasma display apparatus, the magnitudes of reset pulses are controlled or the widths of scan pulses in units of sub-fields, thereby improving contrast, preventing driving margins from deteriorating, stabilizing discharges and improving brightness. The weighted sub-fields need not be arranged in progressive orders of weight, but may be randomly arranged.
摘要:
A method and apparatus for driving a plasma display panel for improving the capability of gray scale Expression as well as picture quality. In the method and apparatus, an average brightness of an image is detected. A gray level number of the current image is adjusted n accordance with said average brightness of said image using a pre-stored reference gray level number.
摘要:
A plasma display apparatus having a plurality of scan electrodes and sustain electrodes, and a plurality of address electrodes formed to intersect with the plurality of scan electrodes and sustain electrodes has a driving unit/circuit which drives the scan electrodes, the sustain electrodes, and the address electrodes to allow the voltage difference between the scan electrode and the sustain electrode or the voltage difference between the scan electrode and the address electrode during an address period at one or more subfields of a frame to be larger than the voltage difference between the scan electrode and the sustain electrode or the voltage difference between the scan electrode and the address electrode during the address period at other subfields. This allows a finer grey scale gradation to be obtained.