Abstract: The present invention provides a synthetic wood including a body containing a polystyrene- or polypropylene-based resin as the major component and a weather-resistant outer layer with excellent adhesion to the body. A synthetic wood 1A includes a body 2 defining a core thereof and formed of a polystyrene or polypropylene foam and an outer layer 3 covering the body and formed of a weather-resistant synthetic resin that is unfoamed or foamed at a low expansion rate. The body and the outer layer are integrally bonded by coextrusion. The body contains a polystyrene- or polypropylene-based resin as the major component. The outer layer contains an acrylonitrile-acrylic rubber-styrene copolymer and/or an acrylonitrile-ethylene propylene rubber-styrene copolymer, which are weather-resistant resins, as the major component.

Abstract: The present invention provides a synthetic wood including a body containing a polystyrene- or polypropylene-based resin as the major component and a weather-resistant outer layer with excellent adhesion to the body. A synthetic wood 1A includes a body 2 defining a core thereof and formed of a polystyrene or polypropylene foam and an outer layer 3 covering the body and formed of a weather-resistant synthetic resin that is unfoamed or foamed at a low expansion rate. The body and the outer layer are integrally bonded by coextrusion. The body contains a polystyrene- or polypropylene-based resin as the major component. The outer layer contains an acrylonitrile-acrylic rubber-styrene copolymer and/or an acrylonitrile-ethylene propylene rubber-styrene copolymer, which are weather-resistant resins, as the major component.

Abstract: With the prior art image-adjusting system for a liquid crystal display, flicker is adjusted by operator's visual examination and so human factors vary the potential-adjusting value applied to the common electrode. The invention provides an image-adjusting system and method free of this problem. The image-adjusting method starts with placing optical sensors opposite to a given location on a liquid crystal display. The output waveform from the optical sensors is observed on an oscilloscope in synchronism with the vertical synchronizing signal that is synchronized to odd frames or even frames. The potential applied to the common electrode of the liquid crystal display is shifted upward from the optimum potential to observe a first waveform. The potential on the common electrode is shifted downward from the optimum potential to observe a second waveform.

Abstract: With the prior art image-adjusting system for a liquid crystal display, flicker is adjusted by operator's visual examination and so human factors vary the potential-adjusting value applied to the common electrode. The invention provides an image-adjusting system and method free of this problem. The image-adjusting method starts with placing optical sensors opposite to a given location on a liquid crystal display. The output waveform from the optical sensors is observed on an oscilloscope in synchronism with the vertical synchronizing signal that is synchronized to odd frames or even frames. The potential applied to the common electrode of the liquid crystal display is shifted upward from the optimum potential to observe a first waveform. The potential on the common electrode is shifted downward from the optimum potential to observe a second waveform.