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Display device and method of controlling the same

A technology for display devices and driving signals, applied in static indicators, components of TV systems, instruments, etc., can solve the problems of increased number of pixels, flickering, and more pixels, etc.

Inactive Publication Date: 2009-05-27
SAMSUNG DISPLAY CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, when the inverter driving signal is generated synchronously with the vertical synchronizing signal, the number of pixels having a synchronous relationship with the inverter driving signal will be as large as (the number of pixel rows×the number of pixels in one pixel row), Even if one of all pixel rows is asynchronous, the number of pixels that have an asynchronous relationship to the inverter drive signal is still greatly increased
As a result, the image will jitter and flicker

Method used

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  • Display device and method of controlling the same
  • Display device and method of controlling the same
  • Display device and method of controlling the same

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Embodiment Construction

[0028] The detailed description will be given below to describe embodiments of the invention, examples of which are illustrated in the accompanying drawings. Like reference numerals refer to like elements throughout. A number of embodiments will be described below in order to describe the present invention by referring to the figures.

[0029] figure 1 is a block diagram of a display device according to an exemplary embodiment of the present invention.

[0030] Such as figure 1 As shown, the display device 100 includes a display unit 110 , an inverter 120 , and a driving signal generator 130 . For example, the display device 100 may be a liquid crystal display.

[0031] The display unit 110 includes a plurality of pixels and displays an image thereon.

[0032] The display unit 110 also includes a liquid crystal panel (not shown) and a backlight unit 111 that emits light to the liquid crystal panel.

[0033] The backlight unit may include a plurality of light elements suc...

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Abstract

A display device includes a driving signal generator being supplied with a synchronous signal and a clock signal and generating an inverter driving signal having a given frequency that is multiplied by a predetermined ratio from a frequency of the synchronous signal, an inverter outputting a driving signal based on the inverter driving signal, and a backlight unit controlling turned-on or turned-off based on the driving signal from the inverter. The driving signal generator operates the number of clocks of the clock signal included in a predetermined period of the synchronous signal by using a predetermined value, defines a magnitude of each section of the inverter driving signal with respect to the predetermined period of the synchronous signal, and adjusts the section magnitude of the inverter driving signal when the number of clocks differs from the total section magnitude of the inverter driving signal based on the magnitude of each section.

Description

[0001] Cross References to Related Applications [0002] This application claims priority from Korean Patent Application No. 10-2007-0119269 filed with the Korean Intellectual Property Office on Nov. 21, 2007, the entire contents of which are hereby incorporated by reference. technical field [0003] The invention relates to a display device and a control method thereof. Background technique [0004] A display device such as a liquid crystal display (LCD) includes a liquid crystal panel including a liquid crystal layer and displaying an image, a backlight unit for emitting light on the liquid crystal panel, and an inverter for driving the backlight unit. [0005] A liquid crystal display includes a plurality of switching elements such as a thin film transistor (TFT) including a semiconductor made of amorphous silicon (a-Si), a plurality of pixel electrodes, and a common electrode. [0006] Amorphous silicon (a-Si) is sensitive to light. That is, when the a-Si TFT receives ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/34G09G3/36
CPCG09G2320/0247G09G2320/064G09G3/3406G09G3/3611H04N5/66
Inventor 吕东铉田炳吉崔湳坤
Owner SAMSUNG DISPLAY CO LTD
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