DISPLAY DEVICE

• Main Authors: KAMIHIRA TAKAHISA, YOKOYAMA MASARU, SUGIMOTO TERUKAZU
• Format: Patent
• Language: English; Japanese
• Published: 12.03.2015
• Subjects: ADVERTISING; ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION; BASIC ELECTRIC ELEMENTS; CRYPTOGRAPHY; DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING; DISPLAY; DISPLAYING; EDUCATION; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; FREQUENCY-CHANGING; LABELS OR NAME-PLATES; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL LOGIC ELEMENTS; OPTICS; PHYSICS; SEALS; SEMICONDUCTOR DEVICES; SIGNS; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF

PROBLEM TO BE SOLVED: To provide a display device that, even when the number of dots of a display panel to be driven increases or decreases, does not require development of a new drive circuit, allows a longer life display panel, and displays an image without mutual interference between lines.SOLUTION: A display device comprises: plural display panels; a drive circuit including plural controllers that drive the respective display panels; and a central processing unit 15. Each controller controls clock synchronization on the basis of a clock signal from the central processing unit, and sequentially and consecutively selects one line of plural lines arranged in a row according to a scan start instruction signal to perform emission operation. In this case, a direction in which the line is consecutively selected is the same direction for the plural display panels. When the scan start instruction signal is output, the central processing unit 15 (a central control part) supplies a common chip select signal to each of the controllers via a gate circuit to thereby specifying each controller commonly. 【課題】駆動すべき表示パネルのドットの数が増減したとしても駆動回路を新たに開発することを要せず、表示パネルの長寿化を図るとともにラインの間の相互干渉がない画像を表示する。【解決手段】複数個の表示パネルと、表示パネルの各々を駆動する複数個のコントローラを有する駆動回路と、中央演算装置とを備える。各コントローラは、中央演算装置からのクロック信号に基づきクロック同期の制御がなされ、スキャン開始指示信号に応じて列状に配置される複数ラインの中の１のラインを順次、連続して選択して発光させる。この場合に連続して選択する方向は、複数の表示パネルにおいて同方向とする。中央制御部１５は、スキャン開始指示信号を出力する際には、共通チップセレクト信号をゲート回路を介して各コントローラを供給することで、各コントローラを共通に指定する。【選択図】図２