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Organic electroluminescence device and display method thereof

An electroluminescence device and electroluminescence technology, which are applied to circuits, electrical components, electric solid devices, etc., can solve the problems of screen color shift, low driving voltage, etc., so as to solve the color shift problem, reduce the poor luminous efficiency, The effect of improving luminous efficiency

Active Publication Date: 2021-07-13
YUNGU GUAN TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the driving voltage of the red sub-pixel and the green sub-pixel is relatively low, and they can emit light normally under low-voltage driving, which makes the luminous efficiency of the red sub-pixel and the green sub-pixel higher than that of the blue sub-pixel in the case of low grayscale. The luminous efficiency of the pixel, and the screen body is prone to color cast (reddish) phenomenon

Method used

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  • Organic electroluminescence device and display method thereof
  • Organic electroluminescence device and display method thereof
  • Organic electroluminescence device and display method thereof

Examples

Experimental program
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Embodiment 1

[0046] An embodiment of the present invention provides an organic electroluminescent device, such as Figure 2-5 As shown, it includes several pixel units distributed in an array, and each pixel unit includes a red sub-pixel unit 1, a green sub-pixel unit 2 and a blue sub-pixel unit 3, and the number of green sub-pixel units 2 and / or red sub-pixel units 1 is at least Two, each sub-pixel unit can be driven independently. That is, when the pixel unit is turned on, the number of the green sub-pixel unit 2 and / or the red sub-pixel unit 1 can be freely selected.

[0047] Specifically, in this embodiment, the number of green light sub-pixel units 2 can be 1 or 2 or 3 or 4, etc., and the number of red light sub-pixel units 1 can be 1 or 2 or 3 or 4 etc., but it should be noted that at least one of the red sub-pixel unit 1 and the green sub-pixel unit 2 has two or more sub-pixel units.

[0048] For example, the number of red sub-pixel units 1 is one, the number of green sub-pixel un...

Embodiment 2

[0066] The embodiment of the present invention provides a display method of the organic electroluminescent device in the above embodiment 1, such as Image 6 shown, including the following steps:

[0067] Step S21, provide a display device, the display device includes a plurality of pixel units distributed in an array, each of the pixel units includes a red sub-pixel unit 1, a green sub-pixel unit 2 and a blue sub-pixel unit 3, the green sub-pixel unit 2 and / or The number of red light sub-pixel units 1 is at least two, and each sub-pixel unit is independently driven.

[0068] The structure of the organic electroluminescent device has been described in detail in Embodiment 1, and will not be repeated here.

[0069] Step S22 , judging the number of green sub-pixel units 2 and / or red sub-pixel units 1 turned on according to the driving voltage of the blue sub-pixel unit 3 .

[0070] In specific applications, due to the high-voltage drive, the luminous efficiency of the blue sub...

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Abstract

The invention relates to the field of display technology, and discloses an organic electroluminescent device and a display method thereof. The device includes a plurality of pixel units distributed in an array, and each pixel unit includes a red light sub-pixel unit, a green light sub-pixel unit, and a blue light sub-pixel unit. The number of green light sub-pixel units and / or red light sub-pixel units is at least two, and each sub-pixel unit is driven independently, and the absolute value of the difference between the green light luminous efficiency and the blue light luminous efficiency in each pixel unit is not greater than The first default value. That is, when the pixel unit is turned on, the number of green light sub-pixel units and / or red light sub-pixel units can be freely selected to reduce the difference in luminous efficiency between blue light, red light, and green light, thereby solving the problem of color shift.

Description

technical field [0001] The invention relates to the field of display technology, in particular to an organic electroluminescence device and a display method thereof. Background technique [0002] Organic electroluminescent display (English full name Organic Light Emitting Display, referred to as OLED) is an active light-emitting display device. Due to its advantages such as simple manufacturing process, low cost, high contrast, wide viewing angle, and low power consumption, it is expected to become the next generation of mainstream flat panel. Display technology is one of the most concerned technologies in flat panel display technology. [0003] figure 1 It shows the voltage-brightness curves of the RGB three-color sub-pixels in the pixel juxtaposition method full-color display device. It can be seen from the figure that in the existing OLED display device, the turn-on voltages of the RGB three-color sub-pixels are inconsistent. Specifically, the turn-on voltage of the bl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L27/32
CPCH10K59/353H10K59/12
Inventor 李田田田景文李维维何麟李梦真李国孟魏金贝
Owner YUNGU GUAN TECH CO LTD
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