Abstract: A display device includes a pixel circuit unit comprising a plurality of pixels to display an image, a data driver to supply data signals to the pixel circuit unit, a scan driver to supply scan signals to the pixel circuit unit, a black/white transition detector to detect a degree of black/white transition of the image, a gamma corrector to adjust the data signal by providing a gamma value to the data driver, and a timing controller to apply control signals to the data driver and the scan driver, receive the degree of black/white transition from the black/white transition detector, and provide a corrected gamma control signal to the gamma corrector according to the degree of black/white transition.

Abstract: An image display apparatus according to the present invention includes: n of scanning lines, n being an integer of 3 or greater; a scanning circuit that outputs a selection signal for sequentially selecting scanning lines from the n of scanning lines in each transitional selection period, light being to be emitted onto the selected scanning lines; a plurality of display devices that are to form a plurality of pixels that form the plurality of scanning lines; an evaluation circuit that outputs an evaluation value corresponding to the brightness of an image formed by the pixels of each of the plurality of display devices; and a control circuit that changes scanning conditions in the scanning circuit in accordance with the evaluation value, so that the ratio of the total time in term of a unit time of the time when each of the n of scanning lines being selected during the selection periods to the unit time is changed.

Abstract: A method for driving a plasma display panel including discharge cells at the intersections of data electrodes D1 to Dm and pairs of scan electrodes SC1 to SCn and sustain electrodes SU1 to SUn. One field period is composed of a plurality of subfields each including a writing period and a sustain period. During the writing period, a writing discharge is generated in a selected one of the discharge cells. During the sustain period, a sustain discharge is generated in the selected discharge cell. A voltage to be applied to sustain electrodes SU1 to SUn in the writing period of the subfield having the lowest display luminance of all the subfields is set higher than a voltage to be applied to sustain electrodes SU1 to SUn in the writing period of the subfields other than the subfield having the lowest display luminance.

Abstract: Sustain discharge is stably caused while power consumption is reduced, and image display quality is improved. A plasma display device has a plasma display panel, an electric power recovering circuit for raising or falling a sustain pulse by resonating an inductor and the inter-electrode capacity of a display electrode pair, and a sustain pulse generating circuit for alternately applying, to the display electrode pair, as many sustain pulses as the number corresponding to the luminance weight in the sustain period of a plurality of subfields that are disposed in one field and have initializing, address, and sustain periods. The sustain pulse generating circuit generates at least two kinds of sustain pulses including a first sustain pulse serving as a reference and a second sustain pulse that rises more gently than the first sustain pulse, and generates the first sustain pulse immediately after the second sustain pulse.

Abstract: A driving method of plasma display panels is disclosed. This method can suppress a dark belt occurring in displaying a video of a lower part of grayscale. One field includes plural sub-fields, and each one of the sub-fields has an addressing period during which a scan pulse is applied to the scan electrodes and a data pulse is applied to the data electrodes, and a sustaining period during which a sustain pulse is applied to the scan electrodes and the sustain electrodes. A time interval between a scan pulse applied lastly during the addressing period and a sustain pulse applied firstly during the sustaining period is defined as a last pulse-interval. The last pulse-interval of at least one sub-field of a lower part of grayscale, which lower part is darker than a predetermined level of the grayscale, is set longer than the last pulse-intervals of the other sub-fields.

Abstract: The present invention aims to improve a low gradation expression ability by reducing the brightness of the 1st gradation level to about 1.05 cd/m2 of the intermediate brightness between the 0th gradation level and the 2nd gradation level at the time of driving a PDP. During a sustain erase period (P13) of a subfield (SF1) with the smallest brightness weight among a plurality of subfields (SF), a positive voltage (Vbk) that is smaller than a voltage (Vsus) applied during a sustain period (P23) of other SFs is applied to scan electrodes. Also, during the sustain erase period (P13) of SF1, a positive voltage (Vda) is applied to address electrodes or a positive voltage (Vda) is applied to the address electrodes during at least one period of a voltage rising period (T11) of an all-cell reset period (P11).

Abstract: A plasma display device includes an AD converter; a video signal processing circuit producing subfield data; a subfield processing circuit producing control signals of each of drive circuits; a plasma display panel having scan electrodes and sustain electrodes which are alternately arranged in n rows, and data electrodes in (k+m) columns arranged in a direction of intersecting with the scan and sustain electrodes; a scan-electrode drive circuit for driving scan electrodes; a sustain-electrode drive circuit for driving sustain electrodes; and a data-electrode drive circuit which has a first drive circuit for driving data electrodes and a second drive circuit for driving data electrodes, and applies writing pulse voltage in order from a data electrode group nearest to the scan-electrode drive circuit.

Abstract: A plasma display apparatus includes an image data transmitter to convert an externally input image signal into image data and to transmit the converted image data, an image data receiver to receive the image data and to restore an image signal from the image data, and a data driver to supply the restored image signal to an address electrode of the plasma display panel through a switching operation. The image data may be transmitted as a differential signal.

Abstract: The protective layer of the plasma display device is formed of a base protective layer and a particle layer. The base protective layer is a thin film of magnesium oxide containing at least one of magnesium oxide, strontium oxide, calcium oxide, and barium oxide. The particle layer is formed in a manner that magnesium-oxide single-crystal particles, which have a structure surrounded by the specified two-type orientation face formed of (100) and (111) faces or the specified three-type orientation face formed of (100), (110), and (111) faces, are stuck to the base protective layer. The panel driving circuit drives the panel in a manner that one field period is formed of a first subfield group having a plurality of subfields and a second subfield group having a plurality of subfields temporally disposed after the first subfield group. Each subfield of the first subfield group has initializing period Ti, address period Tw for forming wall charge to generate a sustain discharge, and sustain period Ts.

Abstract: A plasma display panel (PDP) having high efficiency includes a front substrate and a rear substrate facing each other; element portions interposed between the front and rear substrates, and including a first element and a second element disposed in both sides of a main discharge space and a third and a fourth element respectively having a narrow width and protruding on the first element and the second element, wherein the first and second elements, and the third and fourth elements partition stepped spaces along a stepped surface in the main discharge space; sustain electrode pairs alternately disposed on the front substrate, extending along a first direction and causing mutual discharge; dielectric layers which are formed on the front substrate to cover the sustain electrode pairs and in which grooves are formed along a direction that is substantially perpendicular to the first direction; and address electrodes formed on the rear substrate and extending in a second direction that crosses the first direction.

Abstract: A display apparatus driving circuitry for driving a plasma display panel. A first transistor is electrically connected between an output terminal and a high-voltage power supply terminal. A second transistor is connected between the output terminal and a reference power supply terminal. A buffer circuit supplies a voltage lower than a low voltage VDL for logic to a gate of the second transistor to make a drop in an output waveform gradual during an address electrical discharge. In a preferred embodiment, during this drop in the output waveform, a p-channel type MOSFET of the buffer circuit is turned on, whereby the VDL is suppressed due to a back gate effect. Therefore, a signal at a potential lower than the VDL is inputted to the gate of the second transistor. As a result, the drop in the second transistor output waveform is gradual, so that noise and damage are prevented.

Abstract: An image processing apparatus for automatically improving the contrast of an input image that is obtained from a digital camera or the like, and obtaining a sharper and clearing image. A contrast improvement unit (11) performs a contrast improvement process on the input image by comparing an object pixel in the input image with pixels in the surrounding area. An image combination unit (12) combines the enhanced image obtained by the contrast improvement process with the input image. The combined image is then output to a desired device such as a printer by an image output unit (13).

Abstract: There is provided a plasma display device including a slope waveform generating circuit which supplies to an electrode a slope waveform of which voltage changes with the lapse of time, the electrode being formed in a capacitive load to serves as a display element in a display panel for displaying images, wherein the slope waveform generating circuit includes: a plurality of power supplies which supply different voltages; and a switching circuit which selects one power supply out of the a plurality of power supplies and supplies a voltage to the electrode, wherein the switching circuit switches the power supply, which supplies a voltage to the electrode, in accordance with a voltage being supplied to the electrode.

Abstract: The invention deals with the large area flicker effect reduction in display devices like plasma display panels, in which the light output is controlled by small pulses over a whole frame period and the amount of small pulses determine the brightness of the light output. The invention proposes an adaptation of the known principle of sub-field grouping for large area flicker reduction for the specific sub-field coding process called incremental sub-field coding, in which only those sub-field code words are taken for display driving having the characteristic that there is never a sub-field inactivated between two activated sub-fields or never a sub-field is activated between two inactivated sub-fields. For this specific sub-field coding it is proposed to make the sub-field grouping in a simple manner, where all the odd sub-fields are grouped together in one group (G1) and all the even sub-fields are grouped together in a second group (G2).

Abstract: White noise images and white noise-like pattern images are discerned by making use of the fact that the address current is increased when such an image is entered and detecting the address current by an address current detection circuit. When the detected address current exceeds a given value ? and persists for a given period of time, a CPU controls a contrast control circuit to lower the contrast of the video signal, thus reducing the power consumption of an address driver circuit.

Abstract: A plasma display apparatus is disclosed. The plasma display apparatus includes a plasma display panel including a first electrode and a second electrode connected to a reference voltage source, a negative voltage controller that supplies a negative voltage output from a negative constant voltage source to the first electrode, a sustain driver, and a negative voltage blocking unit. The sustain driver supplies a sustain signal to the first electrode, and one terminal of the sustain driver is connected to one terminal of the negative voltage controller. The negative voltage blocking unit prevents the negative voltage from being supplied to the reference voltage source through the sustain driver while the negative voltage controller supplies the negative voltage to the first electrode.

Abstract: A driving method for a plasma display apparatus having address electrodes, scan electrodes and common electrodes and displaying one field of image by using subfields is provided. The driving method includes one specific subfield is arranged to be turned ON early in the one field and always turned ON at luminance level higher than input luminance level “0”, and the specific subfield has a least luminance weight and does not have resetting.

Abstract: An exemplary system for light control is disclosed. The system includes a computer (1), a chip (3) which is connected with the computer via a level converting circuit (2), and a plurality of light luminance control circuits. Each light luminance control circuit controls a corresponding light circuit. A related method is also disclosed. The method includes the steps of: initializing parameters for a communication serial port of a computer and a chip; receiving light luminance information, and outputting the light luminance information to the chip; processing the received light luminance information, and sending a light luminance control signal to each light luminance control circuit; converting the received light luminance control signal; and controlling light of each light circuit.

Abstract: Disclosed is a method of driving a plasma display panel and an apparatus thereof enabling to manage digital signal for driving a plasma display panel. The apparatus for driving a plasma display panel has a PDP driving unit which supplies the plasma display panel with the video signal outputted from a scan converter after revision and controls the sustain discharge period of sub-field to adjust contrast and brightness of a picture.

Abstract: Embodiments of the present invention may relate to a plasma display apparatus and a driving method thereof, to reduce the magnitude of noise. The driving method may include applying a ramp-down waveform decreasing to a first voltage to a plurality of scan electrodes, applying a ramp-up waveform increasing from the first voltage to a second voltage gradually with a gradient to the scan electrodes, and applying a scan pulse decreasing from the second voltage to a third voltage to the scan electrodes.

Abstract: A display method of a plasma display device and plasma display device are provided. The display method includes nonlinearly converting first image data corresponding to an input image signal to second image data having a gradation value smaller than a gradation value of first image data and expressing the second image data by a real part and an error part. The display method includes error diffusing of, when the error part of the second image data is not zero, spatially or temporally diffusing the error part. The display method includes subfield pattern converting of selecting a lighting pattern of the subfields based on the error-diffused second image data.

Abstract: A plasma display apparatus and driving method thereof are disclosed. The plasma display apparatus comprises: a plasma display panel comprising scan electrodes and sustain electrodes, a scan driver for supplying a first pulse to the scan electrodes before a reset period of a first subfield, a first reset pulse gradually falling after maintaining a constant voltage to the scan electrodes during the reset period, and a second reset pulse having a voltage higher than the constant voltage of the first reset pulse to the scan electrodes during a reset period of a second subfield and a sustain driver for supplying a second pulse with a polarity opposite a polarity of the first pulse to the sustain electrodes corresponding to the first pulse before the reset period.

Abstract: An image display method for allowing an image display device having a large number of pixels arrayed in a planar form to perform an image display by forming one field period from plural sub-fields for which luminance weights to be displayed are determined, and choosing plural luminances among displayable luminances as luminances for display by combining the luminance weights of the sub-fields, so that the respective pixels are controlled not to emit light or to emit light in each sub-field correspondingly to the luminances for display to be displayed. At least one threshold value is set, and when a pixel is allowed to emit light at a luminance for display at or higher than a first threshold value, which is the smallest threshold value, the pixel is controlled not to emit light constantly or to emit light constantly in a sub-field having the smallest luminance weight.

Abstract: A plasma display device and a driving method thereof are provided. The plasma display device has a panel having a plurality of discharge cells including a display electrode pair that is formed of a scan electrode and a sustain electrode, and a temperature detecting circuit for detecting the ambient temperature of the panel and outputting the detected temperature. In the driving method, an unusual charge erasing period when a rectangular waveform voltage is applied to the scan electrode is disposed between the initializing period and address period of at least one of a plurality of subfields, and the number of subfields having the unusual charge erasing period is controlled based on the detected temperature detected by the temperature detecting circuit.

Abstract: The present invention provides a method of driving a gas discharge display apparatus for displaying gray-scale display levels finer than those achieved by the conventional methods, and also to provide a gas discharge display apparatus with a driver capable of performing such a driving method. An opposed discharge between the sustaining electrode and the address electrode in addition to the conventional surface discharge is generated for the light emission from the fluorescent material in light emitting tubes. The method and the apparatus effect improvements in finer gray-scale display levels than those by the conventional methods.

Abstract: In one embodiment of the present invention, a drive unit of a display device is a drive unit that drives a display device in which one frame is divided into a plurality of sub-frames so that display of input video data is realized by summation of displays of the sub-frames, and the drive unit includes: a sub-frame data generating section generating sets of sub-frame data corresponding to the respective sub-frames; and a sub-frame period fixing section setting at least one sub-frame period to a given value regardless of a type of the input video data. This makes it possible to prevent variations of display quality with respective to various kinds of input video signals.

Abstract: The total number of the scan electrodes is divided into a first scan electrode group and a second scan electrode group. The first scan electrode group drive section for driving the first scan electrode group produces a selection potential and a non-selection potential in the scan period, and supplies scan pulses based on the two potentials in the first half of the scan period. The complex switch section supplies the selection potential produced using the first scan electrode group drive section to the second scan electrode group drive section for driving the second scan electrode group in the latter half of the scan period. The second scan electrode group drive section supplies scan pulses based on the input selection potential.

Abstract: A method for controlling address power consumption on a PDP is disclosed. Image data to be displayed on the PDP are converted into subfield data, and the subfield data are analyzed to generate a variation value of the data for each subfield. An address power recovery circuit operates or ceases operating in one or more subfields based on the variation value of the data associated with each subfield. Image data is determined to be a normal mode or a specific mode based on the generated variation value of the image data, and the number of the subfields displayed on the PDP during the specific mode is set to be less than the number of subfields displayed during the normal mode.

Abstract: A plasma display apparatus is disclosed. The plasma display apparatus includes a plasma display panel including a scan electrode, a sustain electrode, and an address electrode to intersect the scan electrode and the sustain electrode, an integrated driver for supplying the scan electrode or the sustain electrode with a sustain voltage, a data driver for supplying the address electrode with a data voltage, a first ground unit for grounding the integrated driver and the sustain electrode, a second ground unit for grounding the data driver, and a ground controller for controlling the first ground unit and the second ground unit to be electrically separated from each other for a predetermined period in at least one of a reset period and an address period of a subfield.

Abstract: A plasma display device and a driving method thereof are provided. An input grayscale value is converted according to a peak grayscale value of an input video signal of one frame. The number of on-subfields may be increased as a result of the grayscale conversion. Therefore, a total number of sustain discharge pulses applied during the one frame is reset in order to obtain the same brightness for the input and converted grayscale values.

Abstract: An interlace-type PDP is driven by an improved driving method so as to achieve a greater operating margin, higher resolution, and higher brightness. The interlace-type PDP is driven using odd and even frames in such a manner that the cells are grouped into cell groups such that each cell group includes two or three cells which are adjacent in a direction crossing the electrode pairs, and the cells are driven in units of cell groups. The grouping of cells is performed differently for even and odd frames such that, in one type of frame, locations of two or three cells grouped into each group are shifted by one cell, in the direction crossing the electrode pairs, from the locations of cells grouped together in the other type of frame.

Abstract: A display apparatus, that can prevent thermal destruction and burning with a simple structure, has been disclosed. In the apparatus it is judged that there is possibility of a pattern, whose area with high brightness is small, being displayed frequently, when a state in which the total light emission pulse number remains large occurs with high frequency, and if such a state is detected, the total light emission pulse number (sustain frequency) is reduced to prevent the thermal destruction and burning.

Abstract: A plasma display device and display method are provided. The plasma display device expresses a video with gradations by controlling lighting of subfields forming one field, each of the subfields having a weighted luminance. A load factor calculation unit calculates a display load factor of an input video signal. A sustain pulse number change and control unit changes and controls a total number of sustain pulses of one field according to the display load factor. A gradation number conversion processing unit selects a gradation number expressed by the plasma display device according to the total number of sustain pulses and converts the input video signal into a display video signal of the selected gradation number. An error diffusion processing unit spatially diffuses a value corresponding to a decimal fraction when the gradation value of the display video signal in the selected gradation number has the value corresponding to the decimal fraction.

Abstract: A plasma display apparatus and a method of driving the same are disclosed. In the method, a first pulse of a positive polarity direction and a second pulse of a negative polarity direction are alternately supplied to the first electrode during a sustain period. In this case, an absolute value of a voltage of the first pulse is different from an absolute value of a voltage of the second pulse. A third pulse of a positive polarity direction to the third electrode is supplied during the supply of the first pulse, and a fourth pulse having a sum of a voltage magnitude of the third pulse and a voltage magnitude of the second pulse is supplied to the third electrode during the supply of the second pulse.

Abstract: In conventional plasma display devices, reset by obtuse waves has been performed since discharge intensity becomes higher and background light emission is increased when reset by rectangular waves is performed. However, further improvement of the contrast to improve the image quality has been demanded. The present invention provides a driving method of a plasma display device using obtuse-wave reset in which sustain time of an achieved potential of the obtuse-wave reset is controlled in accordance with a display ratio of a video signal.

Abstract: The present invention relates to a plasma display apparatus and driving method thereof, wherein rising and/or falling times of data pulses applied to address electrodes in an address period are controlled to reduce noise generation. Thus, address discharge is stabilized, discharge efficiency of plasma display panel is enhanced, and electrical damage to data drive ICs is prevented. The plasma display apparatus includes a plasma display panel including a plurality of address electrodes, a data driving unit including a plurality of data drive ICs that has a plurality of channels, wherein the data drive ICs are electrically connected to the address electrodes through the channels and drive the address electrodes, and a data pulse controller that controls the voltage-rising time and/or the voltage-falling time of the data pulses applied to the plurality of the address electrodes in an address period to be a sufficient duration, e.g. 100 ns or longer, by controlling the data driving unit.

Abstract: A bistable electro-optic display has a plurality of pixels, each of which is capable of displaying at least three gray levels. The display is driven by a method comprising: storing a look-up table containing data representing the impulses necessary to convert an initial gray level to a final gray level; storing data representing at least an initial state of each pixel of the display; receiving an input signal representing a desired final state of at least one pixel of the display; and generating an output signal representing the impulse necessary to convert the initial state of said one pixel to the desired final state thereof, as determined from said look-up table. The invention also provides a method for reducing the remnant voltage of an electro-optic display.

Abstract: Protective layer of front plate of the plasma display panel is formed of base protective layer and particle layer. Base protective layer is a thin film containing metal oxide. Particle layer is formed in a manner that aggregated particles of a plurality of magnesium-oxide single-crystal particles are stuck on base protective layer. The panel driving circuit drives the panel in a manner that an initializing discharge for forming wall charge is generated in a first subfield of the plurality of subfields, and an address discharge for erasing wall charge is generated in an address period of the plurality of subfields.

Abstract: A PDP display apparatus driving method for performing multi-level gradation display by constituting one frame of a plurality of subfields assigned different weights, wherein in a subfield in which a relative luminance ratio corresponds to a lowest weight, display is performed according to discharges in two periods only, the periods being an initialization period and a write period.

Abstract: A method of driving a gas discharge device for displaying a frame with gradation. A charge producing voltage and a charge adjusting voltage are successively applied in an address preparation period to respective subfields.

Abstract: The present invention relates to a plasma display apparatus and driving method thereof, and more particularly, to a plasma display apparatus implementing gray levels and driving method thereof. The plasma display apparatus according to the present invention comprises a plasma display panel in which a plurality of scan electrodes and a plurality of sustain electrodes are formed on a substrate, drivers for driving the plurality of the scan electrodes and the sustain electrodes, and a sustain pulse controller for controlling the drivers to set a total number of sustain pulses applied to the scan electrodes and the sustain electrodes to be at least one or more of a plurality of sub-fields in which a sub-field having an odd number constitutes one frame. The present invention can implement a finer gray level. Accordingly, half-tone noise when implementing a low gray level can be reduced and the picture quality can be improved.

Abstract: A set-up voltage generating circuit for a plasma display panel (PDP) is disclosed. The circuit is capable of generating a set-up voltage by way of a method of charging a predetermined capacitor using a sustain voltage Vs without recourse to a DC/DC converter in forming a set-up voltage necessary for a set-up period of the PDP. As a result, the circuit is simple in its structure and a manufacturing cost thereof can be reduced because there is no need for a DC/DC converter for supplying a set-up voltage.

Abstract: A driving circuit, which can realize the driving waveforms for a PDP without staying at ground potential includes having one side, the X side, of an panel equivalent capacitor Cp of the PDP coupled directly to ground with the Y side of the equivalent capacitor having a Scan IC 99 connected to a plurality of switches, each switch coupled to a different voltage source. One of the switches is bi-directional and coupled to ground.

Abstract: In a plasma display device and a method for driving a plasma display panel, fluctuation of emission luminance of a discharge cell is reduced and display quality of an image is improved. The plasma display device is provided with a plasma display panel having a plurality of scanning electrodes and sustaining electrodes which configure a display electrode pair. The plasma display device is also provided with a sustaining pulse generating circuit, which has a plurality of subfields having an initializing period, a writing period and a sustaining period in one field period, and generates three kinds of sustaining pulses, i.e., a first sustaining pulse to be reference, a second sustaining pulse whose start-up is sharper than that of the first sustaining pulse and that of a third sustaining pulse, and the third sustaining pulse whose trailing edge is sharper than that of the first sustaining pulse and that of the second sustaining pulse, by periodically switching the pulses.

Abstract: A plasma display device and driving method thereof has a peak value of one frame is detected and then converted. A grayscale or a grayscale value is converted according to an original peak value and a converted peak value, and a total number of sustain pulses applied to the one frame is reset such that a brightness corresponding to the converted grayscale or grayscale value is set to be equal to a brightness corresponding to the original grayscale or grayscale value. In such a manner, the numbers of on-subfields and useable subfields corresponding to the grayscale of the input video signal are increased, so that the discharge characteristics are enhanced and the false contour is reduced.

Abstract: An image display apparatus, such as a plasma display panel, suppresses dynamic false contours with gradation levels sufficiently retained. The image display apparatus has agitation constant adder for generating a plurality of agitation constants for a gradation level corresponding to an image signal, for selecting one agitation constant therefrom, and for adding the agitation constant to the image signal. As a result, dynamic false contours can not be visually perceived because their portions are dispersed by superimposing an agitation to each image signal.

Abstract: There is provided a plasma display device including: a nonlinear conversion circuit which nonlinearly converts a first image signal to a second image signal and expresses the second image signal by a real part and an error part to avoid use of a specific subfield lighting pattern; an error diffusion circuit which, when the error part of the second image signal is not zero, spatially or temporally diffuses the error part; and a subfield pattern conversion circuit which, when a lighting pattern of subfields is selected based on the error-diffused second image signal, selects another subfield lighting pattern without using the specific subfield lighting pattern.

Abstract: A video signal is processed using dither coefficients. Dither coefficients pattern signals are generated. Each pattern signal carries positive and negative dither coefficients arranged in an (n×m) matrix where “n” and “m” being positive integers larger than zero, the sum total of the coefficients being zero. One of the pattern signal is selected for each predetermined unit of picture carried by the video signal. Or, it is selected according to locations of dither coefficients on pixels arranged on a display panel. Dither coefficients of the selected pattern signal are added to an input video signal, thus outputting a video signal to be supplied to the display panel. Instead of the dither coefficients pattern signals, dither pattern signals can be generated, each carrying positional data indicating locations of dither coefficients on the pixels on the display panel.

Abstract: A display apparatus driving method for a field time division type display apparatus displays grayscale by combining a plurality of subfields into which one field has been divided. Each subfield includes a resetting, an addressing, and a sustaining. At least one extra subfield is additionally provided which does not have a resetting, and which stays always ON with a luminance level higher than a prescribed input luminance level.

Abstract: A light-emitting diode (LED) light source control method is disclosed. The light-emitting diode light source control method is used for controlling a composite and a single color LED light source. The composite color LED light source can provide two of the three original red, green and blue color lights and the single color LED light source provides the third original color. The composite and the single color LED light sources provide illuminations sequentially so that the light sources need not to be turned on continually and the data generated by the composite and the single color lights on the red, green and blue channels of image sensors can be processed sequentially.