Abstract: A color liquid crystal display device fitted with a liquid crystal panel having a pixel formed with a plurality of primary color pixel components combined so that a reference white is reproduced, each of the primary color pixel components further having a corresponding liquid crystal shutter; and a back light unit disposed in the rear of the liquid crystal panel and used to give light in such a manner as to have the light pass through the liquid crystal shutters. In the color liquid crystal display device, the transmission factors of the liquid crystal shutters corresponding to the primary color pixel components are set substantially equal and the reference white is reproduced on the liquid crystal panel by means of the transmission factors thus set. With this arrangement, it becomes possible to set high the luminance of the reference white, to equalize the gradation levels depending on the primary color and to simplify the configuration of its driving circuit.

Abstract: An Operation Program-Presetting System comprising twelve program data-supplying switches arranged in the same order as the time-indicating notations on a clock dial with means for generating a unique coded signal corresponding to the data-supplying switch operated. The coded signals given forth successively by the sequential operation of the switches are separated into time data and control data and stored in sets containing both time and control data. The time data represents the "hour" and "five-minute" units corresponding to the time-indicating notations on a clock dial, and the control data instructs the operation of external appliances. A time comparator compares the stored time data with a current time signal and, upon coincidence, a coincidence signal causes external appliances to be operated in accordance with the control data included in the set having the coincident time data.

Abstract: A television receiving program-presetting system comprises means for storing receiving program information in a specified address of a memory; a circuit for defining a vertical address position on a Braun tube screen by counting horizontal synchronizing pulses; a circuit for designating a horizontal address position on the Braun tube screen by counting clock pulses having a higher frequency than the horizontal synchronizing pulses; means for successively producing address information designating the addresses of the memory upon receipt of the outputs from at least the vertical address position defining circuit; means for supplying the address information to the memory and successively reading out the stored program information therefrom; a circuit for generating signals denoting character patterns corresponding to the program information thus read out; means for displaying the character patterns in the form of program information at that address position on the Braun tube screen which is designated by an outp

Abstract: A synchronizing signal extracting device comprises means for detecting each pulse included in a composite synchronizing signal; means for generating a first pulse in synchronism with the detected pulse or detected pulse having a predetermined width; and means including a gate circuit to which the first pulse is supplied, and operative to open the gate circuit after lapse of a predetermined time period from the rise of the detected pulse and extract, as a synchronizing pulse constituting a synchronizing signal to be extracted, the first pulse passed through the gate circuit.