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Regulator and organic light emitting diode display using the same

A technology of light-emitting diodes and regulators, applied in the direction of regulating electrical variables, static indicators, control/regulating systems, etc., can solve the problems of reduced display quality of OLED displays, inability to uniformly compensate the threshold voltage of driving elements, etc.

Active Publication Date: 2014-11-26
LG DISPLAY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the reference voltage output from the regulator varies, the threshold voltage of the driving element in each light-emitting unit of the OLED display cannot be uniformly compensated
Therefore, the display quality of the OLED display is reduced

Method used

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  • Regulator and organic light emitting diode display using the same
  • Regulator and organic light emitting diode display using the same
  • Regulator and organic light emitting diode display using the same

Examples

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Embodiment Construction

[0026] The present invention will be described more fully hereinafter with reference to the accompanying drawings, in which exemplary embodiments of the invention are shown. However, this invention can be implemented in many different ways and should not be construed as limited to the embodiments set forth herein. Like reference numerals refer to like elements throughout the specification. In the following description, if it is determined that a detailed description of a well-known function or structure related to the present invention makes the subject matter of the present invention unclear, the detailed description will be omitted.

[0027] Description will now be made of specific embodiments of the examples of the invention illustrated in the accompanying drawings.

[0028] Such as Figure 1 to Figure 4 As shown in , an organic light emitting diode (OLED) display according to an exemplary embodiment of the present invention includes: a display panel 10 on which data line...

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PUM

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Abstract

A regulator and an organic light emitting diode display including the regulator are disclosed. The regulator includes a reference voltage generating unit generating a reference voltage from an input voltage, a voltage division resistor circuit dividing a voltage of an output terminal of the regulator to generate a feedback voltage, a comparator comparing the reference voltage with the feedback voltage, a transistor that is turned on or off based on an output of the comparator and switches on or off the input voltage supplied to the output terminal, and a sink current breaking circuit for discharging a sink current flowing in the output terminal to a ground level voltage source.

Description

[0001] This application claims the benefit of Korean Patent Application No. 10-2009-0088538 filed on September 18, 2009, the entire contents of which are hereby incorporated by reference for all purposes as if fully set forth herein. technical field [0002] Exemplary embodiments of the present invention relate to a regulator having a stable output and an organic light emitting diode display using the same. Background technique [0003] Various flat panel displays (FPDs) capable of reducing the weight and size of cathode ray tubes have been developed. Examples of flat panel displays include liquid crystal displays (LCDs), field emission displays (FEDs), plasma displays (PDPs), and electroluminescent devices. [0004] According to the material of the light emitting layer, electroluminescent devices are classified into inorganic electroluminescent devices and organic light emitting diode (OLED) displays. An electroluminescent device is a self-luminous display device, and has ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05F1/575G09G3/32
CPCG09G3/20G09G3/3233G05F1/56G09G2330/02G09G2310/061G09G2330/028G09G2300/0819G09G3/3291G09G3/30
Inventor 李炫宰全玚训金镇亨孙在成
Owner LG DISPLAY CO LTD