Boe Technology Group Co., Ltd.

Huameng Liu

Haidong Wu

Xiaobo Du

Bei Wang

Shanshan Bai

Jia Zhao

Xing Fan

Zhihui Zhang

Yan Fan

Shu Jing

Pengfei Zuo

Kuo Shen

An organic light emitting device, a preparation method therefor, and a display apparatus are provided. The organic light emitting device includes an anode, a cathode, and a light emitting layer and an electron transport layer arranged between the anode and the cathode. The electron transport layer is arranged between the light emitting layer and the cathode. The electron transport layer includes a first host material and a second host material. A mixing ratio of the first host material to the second host material of one side of the electron transport layer close to the light emitting layer is different from a mixing ratio of the first host material to the second host material of one side of the electron transport layer away from the light emitting layer.

Organic light emitting device, preparation method therefor, and display apparatus

The present disclosure provides a pixel structure, a displaying substrate, a displaying device and a displaying method, wherein the pixel structure includes first sub-pixels, second sub-pixels and third sub-pixels that are located within a first virtual tetragon; the first sub-pixels are located individually adjacent to midpoints of four side edges of the first virtual tetragon; the second sub-pixels are located individually at four interior angles of the first virtual tetragon; and two center lines of the first virtual tetragon delimit the first virtual tetragon into four second virtual tetragons, and the third sub-pixels are located individually at first interior angles within the four second virtual tetragons.

Display with subpixels arranged in divided tetragon

A display panel and an electronic device are provided. The display panel includes: an opening area; a display area surrounding the opening area; at least one isolation ring, wherein at least a part of the at least one isolation ring is located between the display area and the opening area, and the at least one isolation ring surrounds the opening area; and a drainage structure extending from a sidewall of an isolation ring in the at least one isolation ring along a straight line passing through a center of the isolation ring.

Display panel and electronic device including drainage structure and isolation ring

Disclosed are a light-emitting device, a display panel, and a driving method of the light-emitting device. The light-emitting device includes: a base substrate, a first electrode on a side of the base substrate, a second electrode on a side, facing away from the base substrate, of the first electrode, and at least two blue light-emitting layers located between the first electrode and the second electrode. Different blue light-emitting layers emit light with different wavelengths. The first electrode and the second electrode are configured to be applied with different voltages. A voltage difference between the first electrode and the second electrode includes a first threshold voltage and a second threshold voltage, and under control of the first threshold voltage, one of the blue light-emitting layers emits light; and under control of the second threshold voltage, another blue light-emitting layer emits light.

Light-emitting device, display panel and driving method of light-emitting device

Growing community of inventors

Beijing, China

Huameng Liu