Pixel structure of electroluminescence display panel

Abstract

The present invention relates to a pixel structure of an electroluminescence display panel. The pixel structure of the electroluminescence display panel comprises a first pixel zone and a second pixel zone, and first organic light emitting layers arranged in the first and second pixel zones. The first organic light-emitting layers are unilaminar organic light-emitting layers, are made of single organic light-emitting materials, and are used for enabling the first and second pixel zones to generate a first primary color light and a second primary color light respectively. The length of a resonant cavity of the first pixel zone is less than the length of a resonant cavity of the second pixel zone, so that the first and second pixel zones are used to provide the first and second primary color light respectively. The wavelength of a wave crest of the second primary color light is greater than the wavelength of a wave crest of the first primary color light.

Description

technical field [0001] The present invention relates to a pixel structure of an electroluminescence display panel, in particular to an electroluminescence display that uses an organic light-emitting layer composed of a single organic light-emitting material to generate light of different primary colors in sub-pixel regions with different resonant cavity lengths. The pixel structure of the panel. Background technique [0002] Electroluminescent display device (electroluminescent display device) has been expected to replace liquid crystal display as the next generation due to its characteristics such as no need for color filter, self-illumination (no need for backlight module) and low power consumption. Generations of mainstream display technology. Among various electroluminescence displays, an organic light emitting diode display is one of relatively mature technologies at present. The current full-color electroluminescence display panel mainly uses a white light organic li...

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Problems solved by technology

However, since white light is a wide-spectrum light source, the red light, green light and blue light produced by the color filter are still not saturated enough, which makes the color gamut not high enough

In addition, if the red organic light-emitting layer, the green organic light-emitting layer and the blue organic light-emitting layer are respectively arranged in different sub-pixel regions to emit light separately, although the color saturation can be improved, but due to the need to separately vapor-deposit In addition to using a large number of fine metal masks (FMM) and complicated manufacturing processes to form organic-based luminescent materials of different colors, there are also problems such as color mixing and low yield.

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