ORGANIC LIGHT EMITTING DIODE DISPLAY DEVICE AND METHOD FOR MANUFACTURING THE SAME

摘要

The embodiments of the present invention provide an organic light emitting diode display device and a method for manufacturing the same. The organic light emitting diode display device comprises: an array substrate comprising a plurality of pixel opening areas; a light emitting device located in each of the pixel opening areas on the array substrate; wherein the light emitting device comprises: a hole transport layer, a luminescent layer and an electron transport layer; wherein a vertical projection of the luminescent layer on the array substrate defines the pixel opening area; the hole transport layer and the electron transport layer are located on different sides of the luminescent layer respectively, or the hole transport layer and the electron transport layer are located on the same side of the luminescent layer; both a vertical projection of the hole transport layer on the array substrate and a vertical projection of the electron transport layer on the array substrate partially cover the pixel opening area; the vertical projection of the hole transport layer on the array substrate and the vertical projection of the electron transport layer on the array substrate do not overlap with each other. The display device and the method for manufacturing the same can reduce the number of the layers required for transmitting the light out of the light emitting device, reducing the loss of the light due to the absorption and scattering of the films; improving the external quantum efficiency of the light emitting device; thereby improving the light emitting efficiency of the display device.

主权项

1. An organic light emitting diode display device; wherein the organic light emitting diode display device comprises:
an array substrate comprising a plurality of pixel opening areas; a light emitting device located in each of the pixel opening areas on the array substrate; wherein the light emitting device comprises: a hole transport layer, a luminescent layer and an electron transport layer; wherein a vertical projection of the luminescent layer on the array substrate defines the pixel opening area; the hole transport layer and the electron transport layer are located on different sides of the luminescent layer respectively, or the hole transport layer and the electron transport layer are located on the same side of the luminescent layer; both a vertical projection of the hole transport layer on the array substrate and a vertical projection of the electron transport layer on the array substrate partially cover the pixel opening area; the vertical projection of the hole transport layer on the array substrate and the vertical projection of the electron transport layer on the array substrate do not overlap with each other.