OLED display panel and manufacturing method thereof

Abstract

The invention provides an organic light-emitting diode (OLED) display panel and a manufacturing method of the OLED display panel. The OLED display panel includes a first electrode layer, an OLED light-emitting layer, a second electrode layer, and a light extraction layer. The OLED light-emitting layer is arranged on the first electrode layer and comprises a plurality of pixels. And the second electrode layer is arranged on the OLED light emitting layer. The light extraction layer is arranged on the second electrode layer and comprises a plurality of light extraction columns. Each of the plurality of light extraction columns is disposed corresponding to each of the plurality of pixels. When display light emitted by each of the plurality of pixels enters each of the plurality of light extraction columns, the display light is totally reflected in each of the plurality of light extraction columns and is emitted from one side of each of the plurality of light extraction columns back to each of the plurality of pixels.

Description

technical field [0001] The invention relates to the field of display technology, in particular to an OLED display panel and a manufacturing method thereof. Background technique [0002] Organic light-emitting diode (OLED) display panels have advantages such as wide viewing angle and wide color gamut, and are concerned and developed by major display device manufacturers as mainstream display panels. However, since the refractive index of the glass substrate in the OLEED display panel is different from that of the OLED light emitting layer in the OLED display panel, part of the display light emitted by the OLED light emitting layer will be reflected back into the OLED light emitting layer. Part of the display light cannot be emitted from the OLED display panel, resulting in a low light extraction rate of the OLED display panel. [0003] Please refer to figure 1 , which is a schematic structural diagram of an OLED display panel in the prior art. The OLED display panel includ...

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Problems solved by technology

[0005] While the display light 03 is being refracted, part of the display light 03 continues to penetrate the glass substrate 02, and becomes the display light 03' into the viewer's field of view; the other part of the display light 03 will Reflected by the glass substrate 02, the display light 03" is reflected back into the OLED light-emitting layer, and cannot enter the viewer's field of view

[0006] Compared with the display light 03, the display light 03' passing through the glass substrate 02 has already lost some energy, which means that the light extraction efficiency of the OLED display panel is not ideal

Therefore, in the conventional technology, in order to make the OLED display panel reach the required target brightness, it needs to pay more energy consumption to drive the OLED light-emitting layer 01 to emit the display light 03 with higher energy; or, in Under the requirement of limited energy consumption, the brightness and color gamut of the OLED display panel will be reduced, so that the viewer cannot obtain the expected viewing effect

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