Digital-to-analog converting circuit and display d

专利名称：Digital-to-analog converting circuit and

display device using same

发明人：Hiroshi Tsuchi,Junichirou Ishii申请号：US11387917申请日：20060324

公开号：US20060214900A1公开日：20060928

专利附图：

摘要：A digital-to-analog converter of reduced number of elements and smaller areaincludes a reference voltage generating circuit for outputting a plurality of referencevoltages having voltage values that differ from one another; a first logic circuit for

outputting the result of a logical operation on a first bit group comprising even-numbered bits (or odd-numbered bits) of an input digital data signal composed of aplurality of bits; a second logic circuit for outputting the result of a logical operation on asecond bit group comprising the odd-numbered bits (or even-numbered bits) of theinput digital data signal composed of the plurality of bits; a switch group circuit forsupplying first and second terminals with voltages selected, inclusive of voltages that areidentical, from among the plurality of reference voltages, which are output from thereference voltage generating circuit, in accordance with respective outputs from the firstand second logic circuits; and an amplifier circuit for outputting an output voltage that isthe result of applying a predetermined operation to voltages supplied to the first andsecond terminals.

申请人：Hiroshi Tsuchi,Junichirou Ishii

地址：Tokyo JP,Tokyo JP

国籍：JP,JP

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