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OLED display device

A display device and display technology, applied in static indicators, instruments, etc., can solve the problems of weakening optical signals and unfavorable power consumption.

Inactive Publication Date: 2009-06-17
KONINK PHILIPS ELECTRONICS NV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Prior art display devices are disadvantageous in terms of power consumption because the light signal originally generated from the backlight of the liquid crystal display (LCD) is later attenuated

Method used

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  • OLED display device
  • OLED display device
  • OLED display device

Examples

Experimental program
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Embodiment Construction

[0027] figure 1 An electrical device 1 is shown comprising an active matrix display 2 having a plurality of display pixels 3 arranged in a matrix of rows 4 and columns 5 . Display 2 may be a large display. Motion artifacts are usually most noticeable on such a large monitor.

[0028] FIG. 2 shows a schematic diagram of an active matrix display device 6, which includes such as figure 1 The display 2 of the electrical device 1 shown in. The display 2 includes a display controller 7 including a row selection circuit 8 and a data register 9 . The display controller 7 receives via a data input 10 a data signal comprising information or data, such as a (video) image, to be presented on the display. The data will be written from the data register 8 via the data line 11 into the appropriate display pixel 3 . The row selection circuit 8 is controlled by the display controller 7 to perform selection of the row 4 of the display pixels 3 via the selection line 12 . The synchronizati...

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PUM

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Abstract

The invention relates to an active matrix display device comprising: a display with a plurality of display pixels, each having a current-driven emitting element; a data input for receiving an analog data signal; at least one driving element connected to a power supply and arranged to drive the current emitting elements in accordance with a data signal; and selection means arranged to provide a data signal to at least one of the driving elements in response to the selection signal to generate an overall brightness level during a frame period in accordance with the data signal. The apparatus is adapted to divide a frame period into at least a first sub-period during which the emitting element delivers a first non-zero current and a second sub-period during which the emitting element delivers The second non-zero current, at least the first and second non-zero currents, results in an overall brightness level.

Description

technical field [0001] The invention relates to a display device comprising a display with a plurality of display pixels. More specifically, the present invention relates to an active matrix display device, preferably comprising polymer light emitting diodes (PLEDs) or small molecule light emitting diodes (SMOLEDs). Background technique [0002] Hold-type display devices are known to suffer from the so-called sample / hold effect. These effects are due to the fact that in each frame period a new image can be displayed (sampled) at the beginning of the frame period while the image is still visible on the display (hold ) caused by. If a moving image is displayed, the viewer perceives this effect as a blurred image. [0003] Image blurring effects can be reduced by operating the display in a burst mode, where the frame period is divided in time into two subframes, of which only one is displayed. However, such pulse mode operation is disadvantageous because it is difficult to ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/32G09G3/20
CPCG09G2300/0842G09G2320/043G09G3/2081G09G3/325G09G2330/021G09G2320/0233G09G3/2011G09G3/3233G09G2330/04G09G2330/045G09G3/3258G09G2320/0261G09G3/2022G09G3/30G09G3/32
Inventor M·T·约翰逊N·菲塞科维
Owner KONINK PHILIPS ELECTRONICS NV