초록 ▼

A thin, readily portable book has a memory-type liquid crystal display in the display section of the thin portable book so as to obtain low power consumption along with compact size and reduced weight, a solar cell and a charging device in the energy section of the thin portable book, so that low po

A thin, readily portable book has a memory-type liquid crystal display in the display section of the thin portable book so as to obtain low power consumption along with compact size and reduced weight, a solar cell and a charging device in the energy section of the thin portable book, so that low power consumption is further promoted, a freely detachable cassette-type or card-type non-volatile semiconductor memory in the recording medium section of the thin portable book so as to provide further savings in power consumption.

대표청구항 ▼

What is claimed is: 1. A portable electronic device comprising:a housing;a microcomputer in said housing;a first memory in said housing;a temporary memory in said housing capable of temporarily storing data supplied thereto from said first memory;a liquid crystal display panel operationally connecte

What is claimed is: 1. A portable electronic device comprising:a housing;a microcomputer in said housing;a first memory in said housing;a temporary memory in said housing capable of temporarily storing data supplied thereto from said first memory;a liquid crystal display panel operationally connected to said microcomputer,a sensor juxtaposed to said liquid crystal display panel,wherein multiple pages which are stored in said temporary memory can be simultaneously displayed on said liquid crystal display panel,wherein a portion of a displayed information which is highlighted through said sensor can be stored in said temporary memory, and when said portion is again displayed, the highlight remains provided on said portion.