Top light emitting type OLED display panel and display device

Abstract

An embodiment of the invention provides a top light emitting type OLED display panel and a display device. The top light emitting type OLED display panel and the display device can improve display color gamut of the OLED display panel which is composed of a white-light OLED and a color filter layer, and improve competitiveness of an OLED product relative to an LCD product. The display panel comprises a substrate, an array layer which is arranged on the substrate, a passivation layer which covers the array layer; a reflection structure layer, a color light filtering layer and a flat layer, wherein the reflection structure layer, the color light filtering layer and the flat layer are successively arranged above the passivation layer; the reflection structure layer, the color light filtering layer and the flat layer are exposed from an area above a driving transistor in the array layer; a pixel defining layer arranged on the flat layer, and a white OLED device. The anode of the white OLED device is electrically connected with the drain electrode of the driving transistor through a through hole on the passivation layer. The pixel defining layer is provided with a plurality of opening areas. The light emitting functional layer of the white OLED device is at least arranged in the opening area. The anode is a transparent electrode.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a top-emitting OLED display panel and a display device. Background technique [0002] At present, mass-produced high-resolution full-color display devices using OLED (Organic Light-Emitting Display) as the backlight source are usually implemented by laminating WOLED (white OLED) substrates and color filter layers. . [0003] The white light emitted by the white light OLED is composed of multiple colors of light, and its luminous spectrum has a large line width. In the OLED display panel structure formed by laminating the white light OLED and the color filter layer, the color filter layer is set On the light output side of the white OLED, limited by the limited thickness of the color filter layer, it is difficult for the white light to be fully filtered through the color resist, resulting in a red color displayed after the white light passes through the red, green, and blue colo...

AI Technical Summary

Problems solved by technology

[0003] The white light emitted by the white light OLED is composed of multiple colors of light, and its luminous spectrum has a large line width. In the OLED display panel structure formed by laminating the white light OLED and the color filter layer, the color filter layer is set On the light output side of the white OLED, limited by the limited thickness of the color filter layer, it is difficult for the white light to be fully filtered through the color resist, resulting in a red color displayed after the white light passes through the red, green, and blue color resists in the color filter layer above. The color purity of light, green light, and blue light is also low, which affects its display quality

This makes OLED display products less competitive than traditional LCD (full name Liquid Crystal Display, liquid crystal display) products

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