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dc-dc converter and organic light-emitting display device including the same

A light-emitting display, DC-DC technology, applied in the field of energy, can solve the problem of low target brightness, and achieve the effect of preventing brightness reduction

Active Publication Date: 2017-12-05
SAMSUNG DISPLAY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, there is a problem that the target luminance is smaller than the luminance of the display panel

Method used

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  • dc-dc converter and organic light-emitting display device including the same
  • dc-dc converter and organic light-emitting display device including the same
  • dc-dc converter and organic light-emitting display device including the same

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Embodiment Construction

[0039] The specific content of other embodiments is included in the summary of the invention and the accompanying drawings.

[0040] Advantages, features, and methods for achieving the advantages and features of the present invention can be understood with reference to the accompanying drawings and embodiments to be described in detail later. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in a variety of different forms. A certain component is described as "connected" to another component, which means that it is directly connected to another component. Connection should also be understood as electrical connection through other elements. In addition, in order to clearly describe the present invention, the description of parts not related to the present invention is omitted, and the same reference numerals are used for similar parts throughout the specification.

[0041] Hereinafter, the present invention, that is, a DC...

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Abstract

The present invention relates to a DC-DC converter and an organic electroluminescent display device, wherein the DC-DC converter includes: receiving an input power through an input terminal to generate a first power supply and outputting the first power supply to a first output terminal a first power generation unit; and a selection unit that selectively transmits one of the feedback voltage input from the external feedback cable to the feedback terminal and the voltage at the first output terminal to the first power generation unit. According to the present invention, by selectively feeding back the voltage of the output terminal of the DC-DC converter and the power supply voltage in the display panel, it is possible to provide the DC-DC converter and the An organic light-emitting display device including the converter.

Description

technical field [0001] The present invention relates to a DC-DC converter (DC-DC Converter) and an organic light emitting display device (Organic Light Emitting Display) including the converter, in particular to a DC-DC conversion capable of feeding back a power supply voltage inside a display panel to prevent brightness reduction Converter and organic light emitting display device including the converter. Background technique [0002] In recent years, various display devices capable of reducing weight and volume have been developed to address the shortcomings of cathode ray tubes (Cathode Ray Tube). Such display devices include a liquid crystal display (LCD for short), a field emission display (FED for short), a plasma display panel (PDP for short), and an organic light-emitting display device. (Organic Light Emitting Display, referred to as OLED) and so on. [0003] Among them, the organic light-emitting display device adopts the organic light-emitting diode based on the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02M3/155G09G3/32H02M1/00
CPCG09G3/3233G09G2320/04G09G2330/00H02M3/158G09G2330/08G09G2330/12G05F1/24H02M1/0025G09G3/3258G09G2310/0264G09G2310/0278G09G2320/0233H02M3/156
Inventor 权纯琪朴星千
Owner SAMSUNG DISPLAY CO LTD
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