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1. CN1685393 - Voltage generating circuit

官庁 中華人民共和国
出願番号 200380100126.6
出願日 27.10.2003
公開番号 1685393
公開日 19.10.2005
公報種別 A
IPC
G09G 3/20
G物理学
09教育;暗号方法;表示;広告;シール
G静的手段を用いて可変情報を表示する表示装置の制御のための装置または回路
3陰極線管以外の可視的表示器にのみ関連した,制御装置または回路
20マトリックス状に配置された個々の要素の組み合わせによりその集合を構成することによって多数の文字の集合,例.1頁,を表示するためのもの
G09G 3/36
G物理学
09教育;暗号方法;表示;広告;シール
G静的手段を用いて可変情報を表示する表示装置の制御のための装置または回路
3陰極線管以外の可視的表示器にのみ関連した,制御装置または回路
20マトリックス状に配置された個々の要素の組み合わせによりその集合を構成することによって多数の文字の集合,例.1頁,を表示するためのもの
34独立の光源よりの光の制御によるもの
36液晶を用いるもの
CPC
G09G 5/008
GPHYSICS
09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
5Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
003Details of a display terminal, the details relating to the control arrangement of the display terminal and to the interfaces thereto
006Details of the interface to the display terminal
008Clock recovery
G09G 3/3648
GPHYSICS
09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
3Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
20for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix ; no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
34by control of light from an independent source
36using liquid crystals
3611Control of matrices with row and column drivers
3648using an active matrix
G09G 3/3696
GPHYSICS
09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
3Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
20for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix ; no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
34by control of light from an independent source
36using liquid crystals
3611Control of matrices with row and column drivers
3696Generation of voltages supplied to electrode drivers
G09G 2330/021
GPHYSICS
09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
2330Aspects of power supply; Aspects of display protection and defect management
02Details of power systems and of start or stop of display operation
021Power management, e.g. power saving
出願人 Toshiba Matsushita Display Tec
东芝松下显示技术有限公司
発明者 Aota Shinichi
青田真一
Tsukada Takashi
塚田敬
Mine Hideki
峰秀树
代理人 li jialin
上海专利商标事务所有限公司
優先権情報 314860/2002 29.10.2002 JP
発明の名称
(EN) Voltage generating circuit
(ZH) 电压生成电路
要約
(EN)
The power consumption must be reduced in liquid crystal display devices. A drive voltage generating circuit (201) comprises a clock signal frequency-divider circuit (204) that performs, with respect to clock signals, such a signal processing that does not divide the frequency of externally inputted clock signals (SG22) during a display interval (T13) in which to perform a basic display for normally displaying radio wave reception condition of a mobile telephone and the like on a liquid crystal display panel but does divide that frequency, based on a predetermined criterion, during intervals other than the display interval (T13); and a booster circuit (202,203) uses the clock signals (SG13), the frequency of which has been divided by the clock signal frequency-divider circuit (204), to generate a predetermined voltage for performing that basic display.

(ZH)

在液晶显示器装置中降低功率消耗的必要的。驱动电压生成电路201包括:应用信号处理的时钟信号划分电路204,它在用于执行基本显示的显示时间段T13期间不划分从外部输入的时钟信号SG22的频率,基本显示用于在液晶显示板内总显示蜂窝电话的无线电波接收状态等,而在显示时间段T13以外的时间段期间根据预先确定的标准划分时钟信号的频率;以及升压电路202和203,它们使用时钟信号SG13产生用于执行基本显示的预定电压,该基本显示用于在液晶显示板内总显示蜂窝电话的无线电波接收状态等,其中SG13的频率已由时钟信号划分电路204进行划分。