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Driving method of display screen and organic light emitting display device

A driving method and light-emitting display technology, applied in static indicators, instruments, etc., can solve the problems of color uniformity difference of organic light-emitting display panels, and achieve the effects of improving display effect, improving service life, and improving color uniformity.

Active Publication Date: 2018-08-10
WUHAN TIANMA MICRO ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The voltage drop of the OLED device used to emit different colors of light is different, that is, the voltage drop of sub-pixels of different colors is different, resulting in the pixel group that should emit the same color light at the current input end and the end far away from the current input end. Due to the voltage drop Different colors will be displayed, resulting in poor color uniformity of organic light-emitting display panels.

Method used

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  • Driving method of display screen and organic light emitting display device
  • Driving method of display screen and organic light emitting display device
  • Driving method of display screen and organic light emitting display device

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Embodiment Construction

[0031] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that unless specifically stated otherwise, the relative arrangement of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention.

[0032] The following description of at least one exemplary embodiment is actually only illustrative, and in no way serves as any limitation to the present invention and its application or use.

[0033] The technologies, methods, and equipment known to those of ordinary skill in the relevant fields may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be regarded as part of the specification.

[0034] In all examples shown and discussed herein, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of th...

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Abstract

The invention provides a driving method of a display screen and an organic light emitting display device. The driving method is used for driving an organic light emitting display panel; the organic light emitting display panel comprises multiple pixel groups , wherein the pixel groups comprise at least three sub-pixels, and the at least three sub-pixels are used for emitting light in three different color; a time of the organic light emitting display panel in displaying a frame of picture comprises a display cycle, wherein the display cycle comprises at least two light emitting stages; withinany one light emitting stage, at least one sub-pixel in any one pixel group emits light; and within a display cycle, the various sub-pixels in any one pixel group are identical in driving current, andby adjusting the weakness of the driving current as well as light emitting durations of the various sub-pixels, display color of the pixel groups are adjusted. The invention is beneficial for improving a problem on color uniformity of the organic light emitting display panel, and subsequently, a display effect of the display panel is improved.

Description

Technical field [0001] The invention belongs to the field of display technology, and specifically relates to a driving method of a display screen and an organic light emitting display device. Background technique [0002] Organic light emitting diode (OLED) display panels, that is, organic light emitting display panels, have the advantages of thinner thickness, lighter weight, active light emission, bright pictures, low power consumption, good flexibility, and wide color gamut. A new generation of display technology after Thin film transistor-Liquid crystal display (TFT-LCD) technology. [0003] OLED works under current drive, and the transmission of current is conducted through the metal wire in the display panel. Due to the resistance of the metal wire, the current will gradually decrease from the current input terminal to the end far away from the current input terminal, that is, the voltage drop ( IR-drop). The voltage drops of the OLED devices that emit different colors of l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/3233
CPCG09G3/3233G09G3/2003G09G3/2018G09G3/3208G09G2300/0452G09G2310/0235G09G2320/0233G09G2320/0242G09G2320/045
Inventor 韩立静
Owner WUHAN TIANMA MICRO ELECTRONICS CO LTD