Display panel, organic light-emitting component and manufacturing method thereof

Abstract

The invention provides a display panel, an organic light-emitting component and a manufacturing method thereof. The manufacturing method of the organic light-emitting component includes: forming a first electrode; forming an organic functional layer on the first electrode, and the organic functional layer includes at least holes An injection layer and a light-emitting layer, the light-emitting layer includes a plurality of light-emitting parts, and there are intervals between the plurality of light-emitting parts, and the hole injection layer includes a first part corresponding to a plurality of light-emitting parts and two adjacent parts a second portion between the first portions; and forming a second electrode on the organic functional layer, wherein the method further includes: illuminating the second portion of the hole injection layer to make the The second part produces a degradation reaction. The display panel, the organic light-emitting component and the manufacturing method provided by the present invention can effectively improve the problem of low grayscale color shift.

Description

Technical field [0001] The present invention relates to the field of display technology, in particular to a display panel, an organic light-emitting component and a manufacturing method thereof. Background technique [0002] In recent years, OLED (Organic Light-Emitting Diode) technology has developed rapidly and has become the most likely prospective technology to replace LCD (Liquid Crystal Display, liquid crystal display). [0003] reference figure 1 , figure 1 It is the brightness of the prior art OLED display panel under the gray scale of 0-40 and the brightness of the red, green and blue sub-pixels (wherein, the brightness corresponding to the number of gray scales of 255 is 250 nits). according to figure 1 It can be seen that when the gray level is low (the number of gray levels is low), the brightness of the OLED display panel is also very low. For example, the brightness of a display panel with a gray scale of 20 is only 0.94nits. Taking into account the aperture ratio of...

AI Technical Summary

Problems solved by technology

Since the low grayscale is the brightness under low voltage, when the blue sub-pixel is lit, although the voltage is mainly across the blue sub-pixel, due to the better conductivity of the hole injection layer, this part of the voltage It can be applied to the green sub-pixel and the red sub-pixel through the hole injection layer. Since the light-up voltage of the red sub-pixel is low, when the voltage drop through the hole injection layer is not large, even if a part of the voltage is lost, the remaining The voltage can still stimulate red light emission, so that in the case of low grayscale, the luminous brightness of red sub-pixels cannot strictly meet the requirements to achieve the low brightness effect, resulting in the phenomenon of low grayscale color cast (reddish)

Similarly, since the turn-on voltage of the green sub-pixel is also lower than that of the blue sub-pixel, a greenish phenomenon will also appear at low gray levels

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