摘要:
The present invention provides long-fiber reinforced polypropylene compositions comprising: (a) about 29-77 wt % of a crystalline polypropylene resin comprising about 50-100 wt % of a propylene homopolymer; (b) about 20-50 wt % of a long-fiber reinforcing material having an average fiber length of about 3-50 mm and an average diameter of about 4-30 μm; (c) about 2-20 wt % of an elastomer, a plastomer, or a mixture thereof having a melt index as measured at 190° C. of about 20-150 g/10 min, wherein said elastomer, plastomer, or mixture thereof was polymerized by a metallocene-based catalyst; and (d) about 0.01-3 wt % of a radical initiator, wherein the ratio of the melt index as measured at 230° C. of the crystalline polypropylene resin to the melt index as measured at 190° C. of the elastomer, the plastomer, or the mixture thereof is in the range of about 0.5 to about 10.
摘要:
A method of displaying broadcast information and a video display apparatus using the same are provided so that, in providing broadcast information via an electronic program guide, video information for a corresponding program is made available to a user in a thumbnail format. The method includes steps of receiving a broadcast program stream including electronic program guide (EPG) information; storing, in a storage medium, thumbnail information corresponding to a specific broadcast program of the received broadcast program stream; configuring a broadcast guide using the thumbnail information stored in the storage medium; and displaying the configured broadcast guide in response to a program guide key input.
摘要:
There is disclosed an organic EL display device using pre-charge which can improve display quality by preventing a cross talk generated by a brightness difference within the same picture realization area, and a driving method thereof. An organic EL display device according to an embodiment of the present invention includes a display panel where a plurality of data lines cross a plurality of scan lines and electro luminescence cells are arranged in the crossing parts thereof; a pre-charge driver for supplying a pre-charge current to the data line in accordance with gray levels of data; and a data driver for charging a data current to the data line for a designated period which is set before a scan pulse is supplied to the electro luminescence cell and after the pre-charge current is supplied.
摘要:
Provided are a vertical GaN-based LED and a method of manufacturing the same. The vertical GaN-based LED includes an n-electrode. An AlGaN layer is formed under the n-electrode. An undoped GaN layer is formed under the AlGaN layer to provide a two-dimensional electron gas layer to a junction interface of the AlGaN layer. A GaN-based LED structure includes an n-type GaN layer, an active layer, and a p-type GaN layer that are sequentially formed under the undoped GaN layer. A p-electrode is formed under the GaN-based LED structure. A conductive substrate is formed under the p-electrode.
摘要:
The present invention is to provide a system and a method for index reorganization using a partial index transfer in a spatial data warehouse that minimize costs of search, split and readjustment for the index reorganization by organizing and transferring clusters with partial indexes in conformity with an index structure so that the partial indexes can be inserted directly into the existing index, thus ensuring continuous and stable data processes, the index reorganization method comprising: a first step of clustering data extracted from the source database in conformity with an index structure via the builder; a second step of generating partial indexes and transferring the partial indexes to a cluster generated according to the clustering; a third step of recording the transferred partial indexes in physically consecutive spaces, not allocated, in the spatial data warehouse server; and a fourth step of inserting the recorded partial indexes in an existing index.
摘要:
Disclosed is a cathode active material providing a cell performance that is not adversely affected by overdischarge, and a lithium secondary cell using the same. More particularly, the cathode active material for a lithium secondary cell comprises a lithium-transition metal oxide capable of lithium ion intercalation/deintercalation, wherein the cathode active material further comprises a lithium manganese oxide having a layered structure represented by the following formula 1 as an additive:[formula 1] LiMxMn1-x02 wherein, x is a number satisfying 0.05 x
摘要:
Red phosphorescene compounds and organic electro-luminescence device using the same are disclosed. In an organic electroluminescence device including an anode, a hole injecting layer, a hole transport layer, a light emitting layer, an electron transport layer, an electron injecting layer, and a cathode serially deposited on one another, the organic electroluminescence device may use a compound as a dopant of the light emitting layer.
摘要:
The insulated conductive particles of the present invention comprise a resin core 41 having an average particle size of 1 to 10 μm, a Ni layer 42 coated on the surface of the resin core with a thickness of 0.01-0.1 μm, an Au layer 43 coated on the Ni layer with a thickness of 0.03-0.3 μm, and an inorganic insulating layer 44 coated on the Au layer with a thickness of 0.05-1 μm. An anisotropic conductive film of the present invention comprises the insulated conductive particles in the number of 10,000-80,000 per square millimeter (mm2).
摘要:
A color compensation apparatus for use in a display device includes a first video signal converter, a color gamut mapping and expansion unit, and a second video signal converter. The first video signal converter converts RGB values of a first video signal into first color stimulus values, and the color gamut mapping expansion unit performs a color gamut mapping and expansion process on the first color stimulus values in order to obtain second color stimulus values. The second video signal converter then converts the second color stimulus values into a second video signal based on property information of the display device. The second signal converter includes a plurality of modeling units for converting the second color stimulus values, which are divided for a plurality of channels, into image data of a second video signal using a plurality of modeling functions, respectively.
摘要:
The invention provides a nitride semiconductor device and a manufacturing method thereof. In the invention, n-type and p-type nitride semiconductor layers are formed on a substrate, and an active layer is formed therebetween. The n-type nitride semiconductor layers include first and second n-type GaN layers disposed in the order of distance from the active layer. In addition, in the nitride semiconductor device of the invention, an AlxGa1-xN layer, where 0