Display device

• US 20050078072A1
• Filed: 10/19/2004
• Published: 04/14/2005
• Est. Priority Date: 05/28/1997
• Status: Active Grant

• Current Assignee: Semiconductor Energy Laboratory Co., Ltd.
• Original Assignee: Semiconductor Energy Laboratory Co., Ltd.
• Inventors: Shionoiri, Yutaka, Koyama, Jun
• Granted Patent: US 6,950,085 B2
• Time in Patent Office: Days
• US Class Current: 345/92
• CPC Class Codes: G02F 1/13454 Drivers integrated on the active matrix substrate G02F1/136277 takes precedence
• CPC Class Codes: G09G 2310/0232 Special driving of display border areas
• CPC Class Codes: G09G 2310/08 Details of timing specific for flat panels, other than clock recovery
• CPC Class Codes: G09G 3/3648 using an active matrix G09G3/367 - G09G3/3696 take precedence
• CPC Class Codes: G09G 3/3674 Details of drivers for scan electrodes
• CPC Class Codes: G09G 3/3685 Details of drivers for data electrodes
• CPC Class Codes: G09G 5/005 Adapting incoming signals to the display format of the display terminal

Abstract

A display device for displaying images based on signals of different standards is disclosed. In a display device of the active matrix type, write control circuits as provided in a source side driver circuit and a gate line side driver circuit are operable to selectively supply output signals of shift registers to a source line and a gate line. Whereby, it becomes possible to render the non-display section of an image clearer or visually distinguishable, which in turn leads to capability of successful execution of images with excellent quality.

Claims

1. A driving method of a display device comprising the steps of:

generating a signal for determination of an operation timing of plurality of TFTs;

controlling outputting of the signal for determination of the operation timing in accordance with EN signals; and

outputting an image signal to the plurality of TFTs on the basis of the signal for determination of the operation timing,

wherein an image display section is formed when the image signal is applied,

wherein an image non-displayed section is formed when no image signal is applied.