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Semiconductor device, display apparatus, and display apparatus driving method

A display device and semiconductor technology, applied in lighting devices, static indicators, instruments, etc., can solve problems such as changes in luminous brightness, and achieve the effects of reducing characteristic changes, reducing the number of processes, and excellent display quality

Active Publication Date: 2006-01-18
SANYO ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, in this case, it is easy to cause fluctuations in luminance

Method used

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  • Semiconductor device, display apparatus, and display apparatus driving method
  • Semiconductor device, display apparatus, and display apparatus driving method
  • Semiconductor device, display apparatus, and display apparatus driving method

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Embodiment Construction

[0033] Preferred embodiments of the present invention (hereinafter referred to as embodiments) will be described below using the drawings.

[0034] figure 1 The circuit configuration of 1 unit of the semiconductor device according to the embodiment of the present invention is shown, figure 2 shows the use of each pixel in the figure 1 A schematic diagram of the overall configuration of a display device with a circuit configuration. The display device in this embodiment is specifically an active matrix organic EL display device, in which a plurality of pixels are arranged in a matrix on a panel substrate. In the row direction of the matrix of the panel substrate, the selection line GL that sequentially outputs the selection signal is formed, and is used to periodically supply the operating power supply Pvdd to the power line VL of the driven component, and in the column direction, the data of the output data signal is formed. Line DL.

[0035] Each pixel is roughly arrange...

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Abstract

Provided is a configuration with which driven elements can be driven by minimized circuit elements. Each of the pixels arranged in matrix contains a driven element 50, a switching TFT, an element-driving TFT, and a holding capacitor Cs. The holding capacitor Cs is connected between the gate and the source of the element-driving TFT, and before outputting a data signal, a pre-charge signal for turning on the element-driving TFT is outputted to a data line DL. Via the turned-on element-driving TFT, a setting signal is outputted to a power source line VL for supplying electric power to the driven element 50, and before applying the data signal to one electrode of the holding capacitor Cs, the source of the element-driving TFT and the other electrode of the holding capacitor Cs are discharged and fixed in a constant electric potential by the setting signal. By such a control, the driven element 50 can be driven by the minimized circuit elements.

Description

technical field [0001] The present invention relates to a circuit configuration for controlling a driven component such as an electroluminescence (EL) display component. Background technique [0002] An EL display device that uses an electroluminescence component of a self-luminous component as a light-emitting component in each pixel is a self-luminous type, and has advantages such as thinness and low power consumption, so it is used as a replacement for a liquid crystal display (Liquid Crystal Display, LCD) and cathode ray tube (Cathode Ray Tube, CRT) and other display devices have attracted attention. [0003] Among them, an active matrix EL display device in which switching elements such as thin-film transistors (Thin-film Transistor, TFT) are provided in each pixel to individually control the EL element, and the EL element is controlled for each pixel is expected to become High-definition display device. [0004] FIG. 6 shows the circuit configuration of each pixel of...

Claims

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Application Information

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IPC IPC(8): G09G3/30H05B33/08H05B44/00
Inventor 池田恭二
Owner SANYO ELECTRIC CO LTD