OELD (Organic Electron Luminescence) display device and display method thereof

A display method and display technology, applied in static indicators, instruments, etc., can solve problems such as affecting the service life of the display, slow brightness, white balance red shift, etc.

Active Publication Date: 2014-04-23
HISENSE VISUAL TECH CO LTD
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

The second is that with the increase of the working time of the OLED device itself, under the constant driving current, the working voltage of the device gradually increases, and the luminous efficiency becomes lower and lower.
especially if figure 1 As shown, the brightness of the blue sub-pixel 3 in the OLED display decays quickly wit

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  • OELD (Organic Electron Luminescence) display device and display method thereof
  • OELD (Organic Electron Luminescence) display device and display method thereof
  • OELD (Organic Electron Luminescence) display device and display method thereof

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[0040] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention.

[0041] An embodiment of the present invention provides a display method for an organic electroluminescent display, wherein the display includes a plurality of pixel units, and each pixel unit includes at least three sub-pixels of red, green, and blue primary colors, such as figure 2 As shown, the method includes:

[0042] Step 101. Receive image data for displaying on the display.

[0043] Step 102, converting the image data into grayscale values ​​corresponding to the sub-pixels in each pixel unit.

[0044] Wherein, when each pixel unit in the first area displaying an image only drives and lights up blue sub-pixels, the converting the image data into grayscale val...

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Abstract

The invention provides an OELD (Organic Electron Luminescence) display device and a display method thereof and relates to the technical field of display, and the display device can be used for solving the problem that subpixels in different colors of an existing display device are different in decay rate along with different display time, and thus the display white balance of the display device is subjected to red deviation. According to the display method of the OELD display device, each pixel unit of the display device at least comprises subpixels with red, green and blue base colors. The method comprises the following steps: when each pixel unit in a first region of a display image only drives and lightens the blue subpixel, reducing a corresponding gray-scale value of the blue subpixel of the first region; and/or when each pixel unit in a second region of the display image only drives and lightens the red subpixel, improving a corresponding gray-scale value of the red subpixel of the second region; and/or when each pixel unit in a third region of the display image only drives and lightens the green subpixel, improving a corresponding gray-scale value of the green subpixel of the third region.

Description

technical field [0001] The invention relates to the field of display technology, in particular to an organic electroluminescence display and a display method thereof. Background technique [0002] The lifetime of OLED (Organic Light) Emitting Diode (Organic Light Emitting Diode) display depends on initial brightness, environmental factors (temperature, humidity, ultraviolet light in ambient light), device efficiency, working mode (DC, AC), device light emitting area Wait. The reasons for the aging of OLED displays mainly come from two aspects. One is that the Thin Film Transistor (TFT) in the pixel drive circuit is driven by the operating voltage, and its characteristic parameters such as threshold voltage drift and IR voltage drop cause switching TFT And / or the operating point of the driving TFT changes, which in turn causes the driving voltage or current on the OLED to change. The second is that the OLED device itself increases with the increase of working time, and its d...

Claims

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Application Information

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IPC IPC(8): G09G3/32G09G3/3208
Inventor 路林曹建伟刘卫东
Owner HISENSE VISUAL TECH CO LTD
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