摘要:
A liquid crystal display (LCD) device includes an LCD panel, a panel driver that includes a source printed circuit board (PCB) substrate having a fixing protrusion hole to supply driving signals to the LCD panel, and a top chassis to receive the LCD panel and the panel driver. The top chassis includes an upper frame portion to prevent the LCD panel from moving upwardly, a side frame portion to prevent the LCD panel from moving sideward, and a fixing protrusion protruded from an inner side of the side frame portion. The fixing protrusion is coupled to the fixing protrusion hole to fix the source PCB inside the side frame portion of the top chassis.
摘要:
A circuit board includes; a reference common voltage generating circuit receiving an input voltage from an input node and outputting a reference common voltage to an output node, wherein the reference common voltage generating circuit includes a voltage distribution unit including a first resistor connected between the input node and the output node and a second resistor connected between the output node and a ground, and a sink current generating unit outputting a sink current to the output node, wherein the sink current is adjusted according to a resistance of a setting resistor, and a coupling line coupling the setting resistor and the reference common voltage generating circuit.
摘要:
A liquid crystal display (LCD) device includes an LCD panel, a panel driver that includes a source printed circuit board (PCB) substrate having a fixing protrusion hole to supply driving signals to the LCD panel, and a top chassis to receive the LCD panel and the panel driver. The top chassis includes an upper frame portion to prevent the LCD panel from moving upwardly, a side frame portion to prevent the LCD panel from moving sideward, and a fixing protrusion protruded from an inner side of the side frame portion. The fixing protrusion is coupled to the fixing protrusion hole to fix the source PCB inside the side frame portion of the top chassis.
摘要:
A lamp driving apparatus includes a lamp driving power system providing a driving power to a lamp, a sensor detecting whether the lamp is turned on, and a controller controlling the lamp driving power system to provide an initial driving power to the lamp to turn on the lamp, and to provide an excess driving power to the lamp if the sensor detects that the lamp is not turned on, the excess driving power having a higher voltage level than the initial driving power. A liquid crystal display includes the lamp driving apparatus and a driving method thereof includes a lamp that is stably driven at an initial stage of operation.
摘要:
A backlight assembly for use of LCD module wherein a current leakage from a lamp cover disposed under a fluorescent lamp is prevented includes a back cover facing the lamp cover under the fluorescent lamp and which has a plurality of penetrating holes.
摘要:
The present invention relates to a lamp driving apparatus including a lamp driving power system providing a driving power to a lamp, a sensor detecting whether the lamp is turned on, and a controller controlling the lamp driving power system to provide an initial driving power to the lamp to turn on the lamp, and to provide an excess driving power to the lamp if the sensor detects that the lamp is not turned on, the excess driving power having a higher voltage level than the initial driving power. Thus the present invention provides a lamp driving apparatus, a liquid crystal display having the same and a driving method thereof including a lamp that is stably driven at an initial stage of operation.
摘要:
A connection of electrode lines of lamps for supplying a light source for a backlight assembly of a liquid crystal display (LCD) device is improved to minimize the size of the LCD device while reducing the manufacturing cost. The LCD device includes the backlight assembly having a light emitting unit formed by plural lamps for generating light and a light controlling unit for guiding the light from the light emitting unit, and a display unit placed to the upper plane of the light controlling unit for receiving the light from the light emitting unit via the light controlling unit to display an image. A driving unit is further provided for converting an external power source of a DC component into an AC component to supply first and second driving signals having phases respectively different from each other to the light emitting unit. Plural lamps respectively have two electrodes which include a first electrode directly connected to the electrode of at least one adjacent lamp and selectively have a second electrode supplied with the externally-provided driving signals. Thus, the wiring of the electrode lines of the plural lamps is simplified to decrease the size of the backlight assembly and LCD device while reducing the manufacturing cost.