Lg Philips Lcd Co., Inc.

Lg Display Co., Ltd.

Lg.philips Co., Ltd.

Gi-Hong Kim

Ik-Soo Kim

Chang-yeon Kim

Dong Kyun Woo

Seong Ho Cho

Hyung-Ki Hong

Won-Ho Lee

Hyung Ki Hong

Jong-Hoon Woo

Ki Bok Park

Discussed are an organic light emitting display panel and an organic light emitting display device including the same, which allows a uniform current to flow in a plurality of driving power lines, thereby reducing consumption power. The organic light emitting display panel can include first to mth gate lines and first to nth data lines configured to define a plurality of pixel areas by intersections therebetween, a plurality of color pixels respectively provided in the plurality of pixel areas, and a plurality of driving power lines. Each of the plurality power lines is shared by two color pixels which are adjacent to each other in a first direction corresponding to a length direction of the first to mth gate lines. Two color pixels, which are adjacent to each other in a second direction corresponding to a length direction of the plurality of driving power lines, have different colors.

Organic light emitting display panel and organic light emitting display device including the same

A pixel circuit of a display device, an organic light emitting display device and a method for driving the same are discussed. The pixel circuit of the display device in one example includes an organic light emitting device emitting light through a current; a driving transistor controlling the current flowing in the organic light emitting device; a first capacitor connected between gate and source electrodes of the driving transistor; a second capacitor in which a data voltage is previously stored; and a switching unit charging the data voltage, which is stored in the second capacitor, in the first capacitor, and allowing the organic light emitting device to emit light by driving the driving transistor in accordance with the data voltage charged in the first capacitor and at the same time charging a data voltage of next frame in the second capacitor.

Pixel circuit of display device, organic light emitting display device and method for driving the same

Disclosed are a liquid crystal display, which can increase a design margin upon designing a driving timing chart, improve picture quality characteristics and reduce power consumption, and a method for driving the same. The liquid crystal display of a field sequential color type comprises an LCD panel having a plurality of pixels arranged in a matrix form defined by gate lines and data lines crossing each other, a sub-field time setting unit for selecting 1 horizontal period according to an externally input frame frequency and a first user-set signal and determining a wait period and a flash period corresponding to the 1 horizontal period according to second and third user-set signals, a timing controller for producing and outputting a gate control signal and a data control signal corresponding to the 1 horizontal period and the wait period and a light source control signal corresponding to the wait period and a re-aligned pixel data, a gate driver for sequentially outputting a scan pulse to the gate lines according to the gate control signal, a data driver for outputting a data voltage to the data lines every 1 horizontal period according to the data control signal, and a backlight unit for sequentially outputting red, green and blue light to the pixels, respectively, according to the control of the timing controller.

Liquid crystal display of field sequential color type and method for driving the same

A temperature-compensating circuit for a liquid crystal display device includes a temperature-sensing unit that measures the temperature of the liquid crystal display device and the surrounding ambient temperature. The temperature-sensing unit outputs a gate voltage-converting signal using the measured temperature. A DC/DC converting unit generates a plurality of converted gate signals using the gate voltage-converting signal. Absolute values of the plurality of converted gate signals are different from each other.

Field sequential mode liquid crystal display device and method of driving the same

A liquid crystal display device includes first and second substrates having inner surfaces facing and spaced apart from each other; a light absorption layer on an inner surface of the first substrate; a cholesteric liquid crystal color filter (CCF) layer on the light absorption layer for selectively reflecting light corresponding to one of red, green, and blue colors; a first transparent electrode on the CCF layer; a first orientation film on the first transparent electrode; a second transparent electrode on the inner surface of the second substrate; a second orientation film on the second transparent electrode, the first and second orientation films being rubbed along the same direction; a polarizing plate on an outer surface of the second substrate; and a layer of liquid crystal material between the first and second orientation films, wherein the layer of liquid crystal material has a bend structure.

Liquid crystal display device using OCB mode and cholesteric liquid crystal color filter and fabricating method thereof

A liquid crystal display device includes first and second substrates facing and spaced apart from each other, a common electrode on an inner surface of the first substrate, a gate line on an inner surface of the second substrate, a data line crossing the gate line, a switching device connected to the gate and data lines, a first pixel electrode connected to the switching device and spaced apart from the data line, a black matrix covering the data line and having a first portion width extending from a center line of the data line to a first edge of the black matrix, and a second portion width different from the first portion width extending from the center line of the data line to a second edge of the black matrix opposite to the first edge of the black matrix, and a liquid crystal material layer interposed between the first pixel electrode and common electrode.

Liquid crystal display device having an improved aperture ratio and method for fabricating the same

Disclosed is a multi-domain liquid display preventing deviation of a domain boundary using a patterned spacer. The present invention includes a first substrate having a plurality of pixel areas defined by a plurality of data and gate lines and a plurality of pixel electrodes formed in the pixel areas, respectively, a second substrate having a black matrix layer cutting of lights from a portion excluding the pixel areas and an alignment boundary and a color filter layer realizing colors, a first alignment layer formed on the first or second substrate so as to have at least two different alignment states centering around the alignment boundary in each of the pixel areas, and a patterned spacer formed between the first and second substrates at a portion of the alignment boundary.

Multi-domain liquid crystal display having spacer aligned with alignment boundary

An array substrate for an in-plane switching mode liquid crystal display device include: a substrate; a gate line on the substrate; a common line on the substrate, the common line being parallel to and spaced apart from the gate line; a common electrode on the substrate. The common electrode includes: a plurality of vertical portions perpendicularly extended from the common line; and a horizontal portion combining the plurality of vertical portions. A gate insulating layer is provided on the gate line, the common line and the common electrode. A data line is provided on the gate insulating layer. A thin film transistor is connected to the gate line and the data line, the thin film transistor including an active layer, source and drain electrodes. A pixel electrode is provided on the gate insulating layer. The pixel electrode includes: an extended portion extended from the drain electrode; a plurality of vertical portions perpendicularly extended from the extended portion; and a horizontal portion combining the plurality of vertical portions and overlapping the common line and the gate line.

Array substrate and fabrication method for in-plane switching mode liquid crystal display device having pixel electrode overlapping common line and adjacent gate line

Liquid crystal display device using cholesteric liquid crystal color filter and fabricating method thereof

An array substrate for an in-plane switching liquid crystal display device including a substrate; a gate line and a data line on the substrate, the data line having at least one bent portion; a thin film transistor at a crossing portion of the gate and data lines; a passivation layer on an entire surface of the substrate including the thin film transistor; a plurality of common electrode on the passivation layer, the plurality of common electrodes having at least one bent portion, wherein at least one of the plurality of common electrodes overlaps at least a portion of the data line; a common line connected to the common electrodes; and a plurality of pixel electrodes on the passivation layer, the plurality of pixel electrodes being alternated with the common electrodes, each pixel electrode having at least one bent portion.

In-plane switching mode liquid crystal display device and manufacturing method thereof

An array substrate of an in-plane switching liquid crystal display device includes a substrate, a gate line and a data line on the substrate crossing each other to define a pixel area, a thin film transistor at the crossing of the gate line and the data line, the thin film transistor including a gate electrode having a first inclined side with respect to the gate line, a semiconductor layer, a source electrode, and a drain electrode, a common line parallel to the gate line, a common electrode having a second inclined side parallel to the first inclined side of the gate electrode within the pixel area, and a pixel electrode alternating with the common electrode within the pixel area, wherein the first inclined side of the gate electrode and the second inclined side of the common electrode are perpendicular to an alignment direction of the array substrate.

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Annyang-si, South Korea

Gi-Hong Kim