Abstract: A method of driving a light-source module includes adjusting a frequency of a boosting switching signal based on a dimming signal which controls luminance of a light-emitting diode (“LED”) string of the light-source module, where the LED string comprises a plurality of LEDs connected to each other in series, and controlling a main transistor in response to the boosting switching signal to transfer a driving voltage to the LED string.

Abstract: A method of driving a light-source module includes adjusting a frequency of a boosting switching signal based on a dimming signal which controls luminance of a light-emitting diode (“LED”) string of the light-source module, where the LED string comprises a plurality of LEDs connected to each other in series, and controlling a main transistor in response to the boosting switching signal to transfer a driving voltage to the LED string.

Abstract: A method of driving a light-source module includes adjusting a frequency of a boosting switching signal based on a dimming signal which controls luminance of a light-emitting diode (“LED”) string of the light-source module, where the LED string comprises a plurality of LEDs connected to each other in series, and controlling a main transistor in response to the boosting switching signal to transfer a driving voltage to the LED string.

Abstract: A method of driving a light-source module includes adjusting a frequency of a boosting switching signal based on a dimming signal which controls luminance of a light-emitting diode (“LED”) string of the light-source module, where the LED string comprises a plurality of LEDs connected to each other in series, and controlling a main transistor in response to the boosting switching signal to transfer a driving voltage to the LED string.

Abstract: A display device is provided. The display device includes a display panel, a backlight unit, and a luminance comparison unit. The backlight unit is configured to supply light to the display panel. The luminance comparison unit is configured to compare a measured luminance of the display panel with a reference luminance range. The backlight unit includes a light source unit, a DC-DC converter, and a driving current controller. The DC-DC converter is configured to supply a driving voltage to the light source unit, and the driving current controller is configured to control a driving current flowing to the light source unit based on the comparison result of the luminance comparison unit.

Abstract: A display device includes odd-numbered and even-numbered gate lines in a first direction, a plurality of data lines in a second direction, a plurality of pixels, a data and gate driver, and a timing controller. The pixels in a column extending in the second direction are alternatingly connected to a first data line located left of the column and a second data line located right of the column, among the plurality of data lines. The timing controller controls the gate driver and the data driver to sequentially apply a first image and a black image to the pixels connected to the odd-numbered gate lines during a first interval to display the first image on the display panel and sequentially apply a second image and the black image to the pixels connected to the even-numbered gate lines during a second interval to display the second image on the display panel.

Abstract: A method of displaying a three-dimensional image includes sequentially providing light to display blocks of a display panel in a scan direction of an image, providing light at a maximum luminance to a display block during a first period in which an image for a left-eye or a right-eye is displayed on the display block, providing the light at a luminance gradually decreasing from the maximum luminance to a preset luminance to the display block during a second period in which a transition image between the left-eye or the right-eye image and a black image is displayed on the display block, and blocking the light from the display block during a third period including a period in which the black image is displayed on the display block and prior to a period in which a left-eye or a right-eye image of a following frame is displayed on the display block.

Abstract: A display device is provided. The display device includes a display panel, a backlight unit, and a luminance comparison unit. The backlight unit is configured to supply light to the display panel. The luminance comparison unit is configured to compare a measured luminance of the display panel with a reference luminance range. The backlight unit includes a light source unit, a DC-DC converter, and a driving current controller. The DC-DC converter is configured to supply a driving voltage to the light source unit, and the driving current controller is configured to control a driving current flowing to the light source unit based on the comparison result of the luminance comparison unit.

Abstract: A method of driving a light source includes receiving an alternating current (“AC”) voltage from outside, generating a first direct current (“DC”) voltage based on the AC voltage, generating a second DC voltage, corresponding to a difference between a driving voltage of a light source part and the first DC voltage, based on the first DC voltage, and outputting a sum of the first DC voltage and the second DC voltage to the light source part.

Abstract: A method of driving a light-source module includes adjusting a frequency of a boosting switching signal based on a dimming signal which controls luminance of a light-emitting diode (“LED”) string of the light-source module, where the LED string comprises a plurality of LEDs connected to each other in series, and controlling a main transistor in response to the boosting switching signal to transfer a driving voltage to the LED string.

Abstract: A method of displaying a three-dimensional image includes sequentially providing light to display blocks of a display panel in a scan direction of an image, providing light at a maximum luminance to a display block during a first period in which an image for a left-eye or a right-eye is displayed on the display block, providing the light at a luminance gradually decreasing from the maximum luminance to a preset luminance to the display block during a second period in which a transition image between the left-eye or the right-eye image and a black image is displayed on the display block, and blocking the light from the display block during a third period including a period in which the black image is displayed on the display block and prior to a period in which a left-eye or a right-eye image of a following frame is displayed on the display block.

Abstract: A method of driving a light source apparatus includes inverting a direct current voltage to generate a first alternating current voltage, transforming the first alternating current voltage into a second alternating current voltage having a voltage level that is greater than a voltage level of the first alternating current voltage, compensating a driving alternating current voltage based on the second alternating current voltage to generate a compensated driving alternating current voltage such that a substantially equal current flows through each light emitting string of a plurality of light emitting string included in the light source apparatus, and rectifying the compensated driving alternating current voltage to apply a driving voltage to the light emitting strings.

Abstract: A method of driving a light source includes receiving an alternating current (“AC”) voltage from outside, generating a first direct current (“DC”) voltage based on the AC voltage, generating a second DC voltage, corresponding to a difference between a driving voltage of a light source part and the first DC voltage, based on the first DC voltage, and outputting a sum of the first DC voltage and the second DC voltage to the light source part

Abstract: A method of driving a light source, which comprises a first light-emitting module including first to k-th light source blocks and disposed at a first edge of a light guide plate, and a second light-emitting module including first to m-th light source blocks and disposed at a second edge of the light guide plate, wherein k and m are natural numbers, includes generating a plurality of duty control signals corresponding to the first to k-th top light source blocks and the first to m-th bottom light source blocks based on an image signal, and selectively generating first to k-th top driving signals and first to m-th bottom driving signals using the plurality of duty control signals based on a three-dimensional image enable signal, where the first to k-th top driving signals drive the first light-emitting module, and the first to m-th bottom driving signals drive the second light-emitting module

Abstract: A method of driving a light source apparatus includes inverting a direct current voltage to generate a first alternating current voltage, transforming the first alternating current voltage into a second alternating current voltage having a voltage level that is greater than a voltage level of the first alternating current voltage, compensating a driving alternating current voltage based on the second alternating current voltage to generate a compensated driving alternating current voltage such that a substantially equal current flows through each light emitting string of a plurality of light emitting string included in the light source apparatus, and rectifying the compensated driving alternating current voltage to apply a driving voltage to the light emitting strings.

Abstract: A flat fluorescent lamp which can be used with an LCD display includes a plurality of discharge channels. Pairs of electrodes are formed on both ends of the discharge channels. Each of the plurality of channels has an emitting section at the middle, and electrode sections on both ends thereof. A width of the electrode sections is the same as that of the emitting section. However, a height of the electrode sections is greater than a height of the emitting section, resulting in the electrode section having a cross-sectional area that is larger than that of the emitting section.

Abstract: A driving circuit of a surface light source and a method of driving the same are disclosed, which is suitable for decreasing the luminance-stabilization period of time and improving the low-temperature starting properties by optimizing a starting voltage and current, the driving circuit comprising an inverter controller which feedbacks a current supplied to the surface light source, and compares the feedback current to a preset reference value, to control the current supplied to the surface light source; a temperature sensor which senses an operation temperature of the surface light source; and a driving-condition determining controller which determines operation modes of the surface light source on the basis of the temperature sensed in the temperature sensor, and varies the feedback current inputted to the inverter controller according to the operation modes of the surface light source.

Abstract: There is a provided a surface light source device comprising: a light source body having an inner space therein in which a discharge gas is contained; a plurality of electrodes formed on the light source body in such a manner as to electrically divide the inner space into at least three blocks and applying discharge voltages to the blocks; and a driving unit sequentially applying the discharge voltages to the blocks through the electrodes in synchronization with a video signal of an external display device. The light source body may have a plurality of discharge spaces or a single discharge space therein. In accordance with the present invention, the surface light source device sequentially applies the discharge voltages to the blocks, and thereby can reduce an after-image occurring in a liquid crystal display device.

Abstract: A driving circuit of a surface light source and a method of driving the same are disclosed, which is suitable for decreasing the luminance-stabilization period of time and improving the low-temperature starting properties by optimizing a starting voltage and current, the driving circuit comprising an inverter controller which feedbacks a current supplied to the surface light source, and compares the feedback current to a preset reference value, to control the current supplied to the surface light source; a temperature sensor which senses an operation temperature of the surface light source; and a driving-condition determining controller which determines operation modes of the surface light source on the basis of the temperature sensed in the temperature sensor, and varies the feedback current inputted to the inverter controller according to the operation modes of the surface light source.

Abstract: An external electrode surface emission fluorescent lamp for LCD backlighting includes (a) a serpentine-shaped upper sheet having a section for maximizing brightness uniformity within a predetermined distance from its surface; (b) a plate-shaped lower sheet combined with the upper sheet to form mutually connected channels; (c) external electrodes installed on surfaces of both ends of the upper sheet; and (d) auxiliary electrodes installed along the surface of channels.