专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

2. 发明授权

KR100385028B1 액정 구동용 전원 장치 및 이를 사용한 액정 장치 및전자기기 有权
标题翻译： 액정구동용전원장치및이를사용한액정장치및전자기기
公开(公告)号：KR100385028B1
公开(公告)日：2003-05-23
申请号：KR1020007010017
申请日：2000-01-07
申请人： 세이코 엡슨 가부시키가이샤
发明人： 야마구치히사시 , 야스에다다시
IPC分类号： G02F1/133
CPC分类号： G09G3/3696 , G09G2330/021
摘要： A power supply device for driving liquid crystal which generates four liquid crystal drive voltages V1 and V4 between first and second reference voltages, the power supply device comprising: a voltage division circuit 102 which divides a voltage between voltages between voltages V1 and V5 and generates four pairs of first voltages NV1 to NV4 and second voltages PV1 to PV4; and four impedance conversion circuits 103 and 104 which generate impedance converted liquid crystal drive voltages V1 to V4 based on the four pairs of the first and second voltages. Each impedance conversion circuit comprises voltage follower type of differential amplifier circuits 120 and 110 to which a pair of the first and second voltages is input, and an output circuit 130 which is driven by the differential amplification circuits. The N-type transistor 134 and P-type transistor 132 in the output circuit are independently driven by the first and second output voltages VN, VP from the differential amplification circuits 120 and 110.
摘要翻译：一种用于驱动在第一和第二参考电压之间产生四个液晶驱动电压V1和V4的液晶的电源装置，该电源装置包括：分压电路102，用于分压电压V1和V5之间的电压之间的电压并产生四个成对的第一电压NV1至NV4和第二电压PV1至PV4; 以及四个阻抗转换电路103和104，其基于四对第一和第二电压产生阻抗转换的液晶驱动电压V1至V4。每个阻抗转换电路包括输入一对第一和第二电压的电压跟随器型差分放大器电路120和110以及由差分放大电路驱动的输出电路130。输出电路中的N型晶体管134和P型晶体管132由来自差分放大电路120和110的第一和第二输出电压VN，VP独立地驱动。

IPRDB

热门服务

关于我们

友情链接

联系方式