Everdisplay Optronics (shanghai) Limited

Xin Mou

Bin Zhang

Hsin Chih Lin

Yanhu Li

Jiahao Lu

Chung Che Tsou

The present disclosure relates to an organic element, a display panel and a display device. The organic light emitting element includes: a first electrode; a hole layer disposed on the first electrode; a light emitting layer including a first light emitting portion, a second light emitting portion and a third light emitting portion; an electron layer on the light emitting layer; and a second electrode disposed on the electron layer. An energy level difference between the hole layer and the first light emitting portion and/or an energy level difference between the first light emitting portion and the electron layer is greater than or equal to a first threshold, so that a turn-on voltage difference between the first light emitting portion and the second light emitting portion is smaller than a second threshold.

Organic light emitting element, display panel and display device

The disclosure relates to the field of OLED display technology, more particularly, to an OLED display panel and a manufacturing method thereof, during the manufacturing process of the OLED display panel, by forming a low gray color shift adjustment layer between the anode and the OLED device layer, and/or between the OLED device layer and the cathode, so as to solve the color shift problem under low gray-scale by adjusting thickness or doping concentration of the low gray color shift adjustment layer, and improve the accuracy of emitting color of the OLED panel.

OLED display panel and manufacturing method thereof

An embodiment according to the present invention discloses a gate driving circuit and display panel using the same. The circuit includes a driving unit, a control unit, a first negative voltage input, a driving voltage input and a control signal input. Three inputting ends of the driving unit are connected to the different inputs when the status of the driving unit is changed according to the sequence of first cut-off st atus/first driving status/second driving status/second cutoff status. The benefit of the solution is to prevent circuit invalid due to the drain current generating when the oxide thin film transistor works in the depletion mode.

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Shanghai, China

Xin Mou