Abstract: Disclosed is a rollable display apparatus including: a flexible display panel that includes a pixel array; a roller part having a surface for winding the display panel; a first housing receiving the roller part and having a first opening through which a portion of the display panel passes; a rotational controller coupled between the roller part and the first housing, the rotational controller configured to: in a first state, enable the roller part to rotate in a first direction to unwind the display panel from the roller part but prevent rotation of the roller part in a second direction opposite the first direction, in a second state, enable the roller part to rotate in the second direction to wind the display panel onto the roller part, and switch from the first state to the second state responsive to receiving a triggering operation from a user.

Abstract: A push lock switch apparatus is provided. The apparatus includes a plunger that is inserted in a housing and slides and includes a moving passage in the inside thereof. A lock pin is hinged at a bottom portion of the housing and interferes with the moving passage to regulate the slide movement of the plunger. A return spring is disposed in the housing and is able to provide an elastic force to the plunger and allows the lock pin to rotate on the moving passage by pressurizing the lock pin. Additionally, a movable contactor is engaged with the plunger and slides together with the plunger and contacts a fixed terminal disposed at an outer side of the housing when the plunger slides.

Abstract: Provided are a source driver configured to drive a data line of a display panel and a liquid crystal display (LCD) device including the same. The source drive configured to compare whether data of consecutive gate lines in the display panel and data of adjacent data lines in the display panel are identical or not, and selectively disable output amplifiers connected to the data line having identical data.

Abstract: A push lock switch apparatus is provided. The apparatus includes a plunger that is inserted in a housing and slides and includes a moving passage in the inside thereof. A lock pin is hinged at a bottom portion of the housing and interferes with the moving passage to regulate the slide movement of the plunger. A return spring is disposed in the housing and is able to provide an elastic force to the plunger and allows the lock pin to rotate on the moving passage by pressurizing the lock pin. Additionally, a movable contactor is engaged with the plunger and slides together with the plunger and contacts a fixed terminal disposed at an outer side of the housing when the plunger slides.

Abstract: Disclosed is a rollable display apparatus including: a flexible display panel that includes a pixel array; a roller part having a surface for winding the display panel; a first housing receiving the roller part and having a first opening through which a portion of the display panel passes; a rotational controller coupled between the roller part and the first housing, the rotational controller configured to: in a first state, enable the roller part to rotate in a first direction to unwind the display panel from the roller part but prevent rotation of the roller part in a second direction opposite the first direction, in a second state, enable the roller part to rotate in the second direction to wind the display panel onto the roller part, and switch from the first state to the second state responsive to receiving a triggering operation from a user.

Abstract: An LCD device includes a liquid crystal panel; a backlight unit disposed at a rear side of the liquid crystal panel and including an LED assembly and a light guide plate, wherein the light guide plate has a first surface facing the LED assembly and a second surface opposite to the first surface; a cover bottom including a horizontal plane over which the backlight unit is disposed and a side perpendicular to the horizontal plane; a guide panel including a side wall and a horizontal portion, wherein the side wall has a first vertical portion surrounding an outer surface of the side of the cover bottom, and the horizontal portion is vertically bent from the first vertical portion and supports the liquid crystal panel, wherein at least one elastic stopper is formed at the side wall and contacts the second surface.

Abstract: Provided are a source driver configured to drive a data line of a display panel and a liquid crystal display (LCD) device including the same. The source drive configured to compare whether data of consecutive gate lines in the display panel and data of adjacent data lines in the display panel are identical or not, and selectively disable output amplifiers connected to the data line having identical data.

Abstract: Disclosed is a foldable display apparatus which can stably maintain a bending curvature of a folded flexible display, and can maintain a bending area of an unfolded flexible display in a plane state. The foldable display apparatus includes a link assembly connected between first and second housings to support a bending area of a display panel, and configured to guide bending of the bending area. The link assembly includes a plurality of bending guide members configured to support the bending area, a plurality of link parts connected to both ends of each of the plurality of bending guide members, and a plurality of link connecting members respectively provided between the plurality of link parts, and configured to connect two adjacent link parts.

Abstract: Disclosed is a foldable display apparatus which can stably maintain a bending curvature of a folded flexible display, and can maintain a bending display area of an unfolded flexible display in a plane state. The foldable display apparatus includes a display panel folded or unfolded with respect to a bending display area, a first housing configured to support a first area of the display panel, a second housing physically coupled to a second area of the display panel, a link assembly connected between the first and second housings, and configured to support a bending display area of the display panel which is folded or unfolded, and a sliding assembly configured to slide the first area or second area of the display panel according to bending of the link assembly.

Abstract: An LCD device includes a liquid crystal panel; a backlight unit disposed at a rear side of the liquid crystal panel and including an LED assembly and a light guide plate, wherein the light guide plate has a first surface facing the LED assembly and a second surface opposite to the first surface; a cover bottom including a horizontal plane over which the backlight unit is disposed and a side perpendicular to the horizontal plane; a guide panel including a side wall and a horizontal portion, wherein the side wall has a first vertical portion surrounding an outer surface of the side of the cover bottom, and the horizontal portion is vertically bent from the first vertical portion and supports the liquid crystal panel, wherein at least one elastic stopper is formed at the side wall and contacts the second surface.

Abstract: An optical transmitter with a feed-forward compensation is disclosed. The optical transmitter includes a first light source receiving a second electrical signal to convert into a first optical signal, an optical splitter dividing the first optical signal into a second optical signal and a third optical signal, an optical detector converting the third optical signal into a fourth electrical signal, a comparator receiving the fourth electrical signal and a third electrical signal, to produce a fifth electrical signal corresponding to a difference between the third electrical signal and the fourth electrical signal, a second light source converting the fifth electrical signal into a fourth optical signal, and an optical combiner for offsetting a distortion component of the fourth optical signal against the second optical signal to produce a fifth optical signal.