Abstract: The present invention relates to a backlight and a light guide plate, a method of manufacturing a diffuser and the light guide plate, and to a liquid crystal display apparatus, all enabling a cost reduction by reducing the parts count and curtailing unnecessary manufacturing processing. A diffuser 261 has a light distribution layer 181 including a prismatic surface wherein stripe grooves or asperities are arrayed in parallel with each other, a diffusion layer 182 containing diffusion elements 191 for diffusing incident light, and a light incidence control layer 271 including a prismatic surface wherein stripe grooves or asperities are arrayed in parallel on a side of fluorescent tubes 131. The diffusion layer 182 is formed from the same resin, and only the diffusion elements 191 are formed from a different resin.

Abstract: The present invention relates to a backlight and a light guide plate, a method of manufacturing a diffuser and the light guide plate, and to a liquid crystal display apparatus, all enabling a cost reduction by reducing the parts count and curtailing unnecessary manufacturing processing. A diffuser 261 has a light distribution layer 181 including a prismatic surface wherein stripe grooves or asperities are arrayed in parallel with each other, a diffusion layer 182 containing diffusion elements 191 for diffusing incident light, and a light incidence control layer 271 including a prismatic surface wherein stripe grooves or asperities are arrayed in parallel on a side of fluorescent tubes 131. The diffusion layer 182 is formed from the same resin, and only the diffusion elements 191 are formed from a different resin.

Abstract: A monitor signal from monitoring equipment or from a monitoring tool is input to a alarm device. Alarm software comprises a contact state monitoring module which monitors a contact state of a contact input device, a command analyzing module which analyzes a command generated by the monitoring tool, an information obtaining module which obtains information required for command executions, a program executing module which executes a command, and a message output module which sends a message to a specified destination by using specified means, and alarms through a telephone line and an electronic mail system. The alarm software also includes user information, group information, alarm content information, schedule information, and contact information, as information required for the command executions. An easy-to-maintain alarm system is thus realized in the way which has a small influence on an existing environment.

Abstract: A monitor signal from monitoring equipment or from a monitoring tool is input to a alarm device. Alarm software comprises a contact state monitoring module which monitors a contact state of a contact input device, a command analyzing module which analyzes a command generated by the monitoring tool, an information obtaining module which obtains information required for command executions, a program executing module which executes a command, and a message output module which sends a message to a specified destination by using specified means, and alarms through a telephone line and an electronic mail system. The alarm software also includes user information, group information, alarm content information, schedule information, and contact information, as information required for the command executions. An easy-to-maintain alarm system is thus realized in the way which has a small influence on an existing environment.