摘要:
A backlight includes a cold cathode fluorescent lamp, a container for receiving the same and a liquid crystal display, device having the container. The lamp includes a lamp tube, a first electrode having a first end disposed inside the lamp tube and a second end disposed outside the lamp tube and a second electrode plated on an outer surface of the lamp tube. The cold cathode fluorescent lamp is easily coupled/separated to/from the container having a clip type power-supplying module in a clip-coupling manner. In addition, a shock absorbing member is installed at the clip type power-supplying module so as to absorb an impact applied to the cold cathode fluorescent lamp.
摘要:
Disclosed are a power supplying apparatus, a backlight assembly and an LCD apparatus having the same. A control section outputs a switching signal so as to control an output of a constant current supplied to a lamp unit in response to on and/or off signals and a dimming signal and a switching section controls an output of a direct current voltage source in response to the switching signal. A power outputting section provides an alternating current voltage source having a constant voltage to the lamp unit. A sensing section senses variation of a power supplied to the lamp unit and a detecting section compares a sensing signal with a predetermined reference signal to output a detecting signal to the control section, thereby maintaining the constant current to be supplied to the lamp unit. Accordingly, the LCD apparatus may prevent deterioration of an image and damage of circuit thereof.
摘要:
In a backlight assembly and a liquid crystal display apparatus, a plurality of lamps disposed in a receiving space of the backlight assembly is spaced apart from each other by various intervals between the lamps depending upon positions at which the lamps are disposed. Each of the lamps may also have an external electrode having a different area from each other or due to the positions at which the lamps are disposed. Furthermore, each of the lamps may have a different amount of discharge gas injected thereinto due to the positions at which the lamps are disposed. Accordingly, the liquid crystal display apparatus may provide a uniform brightness, and prevent deterioration of display quality thereof.
摘要:
In a lamp and method for fabricating the same, an outer surface of the lamp tube is dipped into a conductive transparent solution for forming an electrode by a predetermined depth, and then the lamp tube is pulled out from the solution. Accordingly, an electrode having different profiles is formed on the outer surface of the tube body. Also, the outer surface of the lamp tube is dipped into the solution by an acute angle, and is pulled out from the solution. Therefore, a problem of a nonuniform brightness between lamps is not generated, and light utilization efficiency is much enhanced even when using a plurality of lamp in parallel connected to a power supply.
摘要:
A lamp assembly includes a lamp having two electrodes, a power supply module formed with a clip for gripping the electrodes, a base body on which at least two power supply modules are intermittently disposed in series, and an insulating partition for insulating the power supply modules from each other.
摘要:
A lamp assembly includes a lamp and a lamp driving device. The lamp includes a body and first and second electrodes. The body converts invisible ray generated by a discharge into visible ray, and the electrodes are disposed on the body. The lamp driving device provides the first and second electrodes with first and second driving voltages, respectively, to generate the discharge. The first driving voltage is less than a first critical voltage at which a corona discharge occurs at the first and second electrodes. When the first electrode is electrically connected to a ground, the first critical voltage may be about 1,200 volts. When the second driving voltage has an inverted phase with respect to the first driving voltage, the first critical voltage is about 2,400 volts. An ozone gas may not be generated at the first and second electrodes to prevent the damage of the electrodes.
摘要:
A power supply apparatus includes an inverter controller, a power transforming part and a connecting part. The power transforming part converts a direct current supplied from the inverter controller into an alternating current to output first and second polarity currents. The connecting part outputs the first and second polarity currents to first and second end portions of a load through first and second terminals, respectively and has a third terminal to receive a sensed signal in response to the first or second polarity currents so as to output the sensed signal. The first terminal is spaced apart from the second terminal by a first insulating distance, and the third terminal is spaced apart from the first or second terminals adjacent to the third terminal by a second insulating distance. Therefore, the sensed signal is independent of the output power, thereby increasing the sensing efficiency.
摘要:
A backlight assembly has a light diffusion member including a diffusion layer for diffusing first light emitted from at least one lamp and a light path modulation layer formed on the diffusion layer to modulate the path of the first light, Therefore, the light diffusion member emits second light having uniform distribution of the brightness. The light path modulation layer may be disposed on one surface of the diffusion layer where the first light is input, or another surface of the diffusion layer where the second light is emitted.
摘要:
A method for manufacturing a display substrate includes forming a plastic base substrate. A blocking layer is formed on a surface of the plastic base substrate by depositing a first material and a second material that are distinct. A substrate includes a plastic base substrate and a blocking layer formed at surfaces of the plastic base substrate and having a first layer and a second layer alternatingly. The first layer and second layer include continuously changing component ratio of a first material to a second material. The blocking layer effectively blocks moisture and/or oxygen.
摘要:
A planar light source device includes a lower substrate, a cathode electrode a carbon nanotube, an upper substrate, a fluorescent layer, and an anode electrode. The cathode electrode is on the lower substrate. The carbon nanotube is electrically connected to the cathode electrode. The upper substrate faces the lower substrate. The fluorescent layer and the anode electrode are formed on the upper substrate. Therefore, the planar light source device generates light without using mercury.