Abstract: A semiconductor device 100 including an internal circuit 4 that operates based on an input pattern includes a clock driver 25 that generates an internal clock 7 based on a generated clock 6, a counter 23 that generates count data 28 by counting the generated clock 6, a nonvolatile storage device 22 that stores storage data 27 used in an IDDQ test, a comparator 24 that stops the generation of the internal clock 7 by the clock driver 25 when the count data 28 and the storage data 27 match each other, and a pseudo random number generation circuit 3 that supplies a pseudo random number 8 to the internal circuit 4 in synchronization with the internal clock 7.

Abstract: A semiconductor device 100 including an internal circuit 4 that operates based on an input pattern includes a clock driver 25 that generates an internal clock 7 based on a generated clock 6, a counter 23 that generates count data 28 by counting the generated clock 6, a nonvolatile storage device 22 that stores storage data 27 used in an IDDQ test, a comparator 24 that stops the generation of the internal clock 7 by the clock driver 25 when the count data 28 and the storage data 27 match each other, and a pseudo random number generation circuit 3 that supplies a pseudo random number 8 to the internal circuit 4 in synchronization with the internal clock 7.

Abstract: A rear projection type television receiver of the invention comprises a cabinet having a built-in television receiver, and a screen assembly. The cabinet has a rectangular groove formed around the circumference of the front edge portion. The screen assembly has screen holding plates elastically coupled to each side of the screen, and screen frames coupled to screen holding plates. The screen frames are coupled in a rectangular form. The screen assembly is coupled with the cabinet when the screen frames are inserted into the front groove of the cabinet.

Abstract: A projection type television receiver in which the screen is maintained on the framework despite temperature changes or external force application, and also a large screen video display apparatus which displays video images with minimal loss of picture area, characterized by easy installation or removal of the screen holding framework, and which is excellent in maintainability. A plurality of a projection type television receivers are arranged in multiple rows and lines for the purpose of displaying a large screen video image. Each projection type television receiver comprises a permeable screen with a screening effect, a framework for holding the permeable screen, an elastic member one surface of which is fixed to the peripheral end part of the permeable screen, and the other surface of which is fixed to the framework's holding part of the permeable screen, and which is readily deformable according to applied external forces, and a cabinet having its opening installed within the framework.