Light-emitting component driving circuit and related pixel circuit and applications

A technology of light-emitting elements and driving circuits, which is applied in the field of pixel circuits and applications, can solve problems affecting the brightness uniformity of organic light-emitting diode displays, and achieve the effect of improving brightness uniformity

Inactive Publication Date: 2013-03-27
WINTEK CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

As a result, the brightness uniformity of the organic light emitting diode display will be affected

Method used

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  • Light-emitting component driving circuit and related pixel circuit and applications
  • Light-emitting component driving circuit and related pixel circuit and applications
  • Light-emitting component driving circuit and related pixel circuit and applications

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Embodiment Construction

[0052] Reference will now be made in detail to embodiments of the invention, examples of which are illustrated in the accompanying drawings. In addition, wherever possible, elements / components using the same reference numerals in the drawings and embodiments represent the same or similar parts.

[0053] figure 1 shows a schematic diagram of an (organic light emitting diode) pixel circuit 10 according to an embodiment of the present invention, and figure 2 show figure 1 An implementation circuit diagram of the (OLED) pixel circuit 10 of FIG. Please refer to figure 1 and figure 2 , the (organic light-emitting diode) pixel circuit 10 of this embodiment includes a light-emitting component (light-emitting component, for example: a light-emitting component (organic light-emitting diode) (OLED) 101, but not limited thereto, so the (organic light-emitting diode) pixel The circuit 10 can be regarded as an organic light-emitting diode pixel circuit and a light-emitting component ...

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Abstract

The invention provides a light-emitting component driving circuit and a related pixel circuit and applications. When signals having appropriate operating waveforms are supplied, the circuit configuration (6T1C) of the pixel circuit keeps a current flowing through an OLED unchanged when the Vth shift of the TFT for driving the OLED changes and eases the impact of a power supply voltage Vdd on the current. Thereby, the luminance uniformity of an OLED display adopting the OLED pixel circuit is greatly improved.

Description

technical field [0001] The present invention relates to a flat display technology, and in particular to a light-emitting component (light-emitting component, such as organic light-emitting diode (OLED), but not limited thereto) driving circuit and its Related pixel circuits and applications. Background technique [0002] Due to the rapid progress of the multimedia society, the technologies of semiconductor devices and display devices have also undergone rapid progress. As far as the display is concerned, since the active matrix organic light emitting diode (Active Matrix Organic Light Emitting Diode, AMOLED) display has no viewing angle limitation, low manufacturing cost, high response speed (about a hundred times higher than that of liquid crystal), power saving, self-illumination, It can be used for DC drive of portable machines, has a wide operating temperature range, is light in weight, and can be miniaturized and thinned along with hardware devices to meet the characte...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/32H01L27/32
CPCG09G2320/045G09G3/00G09G2320/0233G09G3/3225Y02B20/36H05B37/02H05B33/0896H05B45/60Y02B20/30
Inventor 黄志鸿王文俊廖文堆
Owner WINTEK CORP
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