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Scan driver, organic light emitting display using the same, and method of driving the organic light emitting display

A technology of scanning driver and light-emitting display, applied in the field of scanning driver

Active Publication Date: 2006-06-28
SAMSUNG DISPLAY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the width of the start pulse SP is set wide, an undesired scan signal SS is generated

Method used

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  • Scan driver, organic light emitting display using the same, and method of driving the organic light emitting display
  • Scan driver, organic light emitting display using the same, and method of driving the organic light emitting display
  • Scan driver, organic light emitting display using the same, and method of driving the organic light emitting display

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Embodiment Construction

[0031] The following detailed description is directed to certain specific embodiments of the invention. However, the invention can be implemented in a multitude of different ways as defined and covered by the claims. In this description, reference is made to the drawings in which like parts are designated with like numerals throughout.

[0032] Figure 4 is a block diagram of one embodiment of an organic light emitting display 105 . The organic light emitting display 105 includes a pixel portion 130 including a plurality of pixels 140 formed in regions separated by a plurality of scan lines S1˜Sn and a plurality of data lines D1˜Dm. The organic light emitting display 105 further includes a scan driver 110, a data driver 120, and a timing controller 150. The scan driver 110 is configured to drive the scan lines S1˜Sn, the data driver 120 is configured to drive the data lines D1˜Dm, and the timing controller 150 is configured to drive the scan lines S1˜Sn. It is configured to...

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PUM

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Abstract

The invention discloses an embodiment of a scan driver, which can freely adjust the width of an emission control signal. An embodiment of the scan driver includes: a shift register configured to sequentially shift the start pulse in response to a clock signal to generate a sampling pulse; a NOR gate connected to each emission control line and configured to The emission control signal is generated in response to at least two sampling pulses; and the NAND gate is connected to each scanning line to generate scanning signals in response to the at least two sampling pulses. At least one of the two sampling pulses input to the NAND gate is input through an inverter. Therefore, the width of the start pulse is controllable to freely adjust the width of the emission control signal. Therefore, the brightness of an organic light emitting display employing the scan driver can be freely adjusted.

Description

technical field [0001] In general, the present invention relates to a scan driver for an organic light emitting display, and more particularly, to a scan driver configured to freely adjust the width of an emission control signal, an organic light emitting display employing the scan driver, and A method for driving the organic light emitting display. Background technique [0002] Various flat panel displays of reduced size and weight have been developed to overcome disadvantages of cathode ray tubes (CRTs). Exemplary types of flat panel displays include liquid crystal displays (LCDs), field emission displays (FEDs), plasma display panels (PDPs), and organic light emitting displays. [0003] An organic light emitting display is a self-luminous device that emits light through recombination of electrons and holes. The organic light emitting display is fast in response and driven with low power consumption. The exemplary organic light emitting display s...

Claims

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Application Information

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IPC IPC(8): G09G3/32G09G3/20G09G3/30H05B33/14H05B44/00
CPCG09G3/2014G09G3/3266G09G2300/0842G09G2300/0861G09G3/30
Inventor 崔相武
Owner SAMSUNG DISPLAY CO LTD
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