Samsung Sdi Co., Inc.

Samsung Display Devices Co., Ltd.

Samsung Display Co., Ltd.

Byung-Hoon Chae

Han-sung Yu

Jang-Kun Song

Jae-Yong Kim

Ji-Hoon Lee

Jung-Kook Park

Sung-Woo Cho

Si-Baek Pyo

Kwan-young Han

Seong-han Yu

Yong-kyu Jang

In-Seo Kee

Se-Jun Hoo

The spread of nascent cracks through a flexible electrodes layer is blocked or impeded by patterning at least one of the electrodes to have crack-spread blocking boundaries and/or crack-spread impeding choke points, where the crack-spread blocking boundaries are placed to block linear growth of cracks and the crack-spread impeding choke points are placed and sized to serve as bottlenecks that impede linear growth of cracks through the corresponding electrode. Additionally, greater flexibility is provided by including a pattern of elongated strips of narrow width electrode material longitudinally extending in different directions, where the provided flexibility is greater than what it would be if a pattern of elongated narrow width electrode strips longitudinally extending in different directions was not provided. One example of crack-spread blocking boundaries and flexibility enhancing patterning is that of shaping each electrode to have serpentine fingers extending longitudinally in different directions. One example of crack-spread impeding choke points is that of shaping each electrode to have dose but spaced apart openings for example in a grid pattern.

Flexible touch display panel

There is provided an organic light emitting display capable of improving the display quality of a low brightness region. The organic light emitting display includes pixels positioned at intersections of scan lines, emission control lines, and data lines, a converter for receiving data to generate brightness values, a timing controller for extracting emission time values and gamma values to correspond to the brightness values, an emission control line driver for supplying emission control signals to the emission control lines so that emission times of the pixels are controlled to correspond to the emission time values, and a gamma voltage generator for generating gamma voltages corresponding to the gamma values.

Organic light emitting display and method of driving the same

A flat panel display device and a substrate therefor capable of preventing a short circuit of pixels due to static electricity is provided. The flat panel display device includes a substrate, a plurality of pixel electrodes, a plurality of pixel electrode pads, a plurality of connection wiring parts, a conductive bar. The pixel electrodes is provided to the substrate. The pixel electrode pads are provided to at least an edge on one side of the substrate to correspond to the respective pixel electrodes. The connection wiring parts connect the pixel electrodes with the corresponding pixel electrode pads and have at least one connection wiring, respectively. The conductive bar is provided on the substrate and positioned on an outer side of the pixel electrode pads to electrically connect the pixel electrode pads. The conductive bar is provided so that a connection of the conductive bar with the pixel electrode pads may be cut off after the manufacturing.

Flat panel display device with conductive bar at edge of first display panel connected to pixel electrode pads on second display panel during manufacturing

The present invention discloses an organic EL device, including a transparent substrate, at least one first electrodes disposed on the substrate, at least one conductive light reflecting layer disposed to cover at least one of side portions of the first electrode, at least one EL light-emitting layer disposed on the first electrode and generating light having a predetermined wavelength and at least one second electrode disposed on the EL light-emitting layer.

Organic EL display device higher brightness and a method for manufacturing the same

Hole transporting compounds having good thermal stability for organic electroluminescent device and method for production thereof

An optical alignment polymer and an optical alignment composition having the same are provided. The optical alignment polymer has a compound selected from the group consisting of poly(maleimide), poly(vinyl acetal), poly(phenylene oxide), poly(maleimide styrene) and their derivatives in its main chain, and a photosensitive group at its side chain. The optical alignment polymer can have high level of optical alignment performance and high thermal stability.

Optical alignment polymer and optical alignment composition having the

An optical alignment composition, an alignment layer formed using the same with an excellent thermal stability, and an LCD having the alignment layer are provided. The optical alignment composition includes a multifunctional cinnamate compound and a cinnamate group containing polymer in a weight ratio of 1:9 to 2:8. Thus, an optical alignment composition and an alignment layer each having excellent thermal stability and alignment property can be obtained while adopting a non-destructive optical alignment method. Accordingly, an LCD with improved performance can be obtained.

Optical alignment composition, alignment layer formed using the same and

An optical alignment composition including polyimide having a cinnamate group at its side chain is disclosed. Also, there are disclosed an alignment layer formed using the composition and a liquid crystal display device (LCD) having the same. The alignment layer has an excellent thermal stability. According to the present invention, Since the alignment layer with excellent thermal stability is obtained, the LCD having excellent performance can be manufactured.

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Seoul, South Korea

Byung-Hoon Chae