Samsung Display Co., Ltd.

Jae-Bok Kim

Jin-Goo Kang

Won-Jun Song

Mu-Hyun Kim

Ji-young Kim

Tae-Kyu Shim

Hye-Lim Shin

Ji-Young Kim

Dong-Kyu Lee

Hyo-seok Kim

Kwan-Hee Lee

Young-Il Kim

Sang-Hun Park

Seung-Mook Lee

Hyea-Weon Shin

Myung-hwan Kim

Jae-Kook Ha

Sun-Hye Lee

Yoon-Kyoo Lee

Young-Ii Kim

An organic light emitting display device includes a hole transport layer (HTL) having a first region and a second region, an emitting layer (EML) disposed on the hole transport layer in the first region, a hydrophobic pattern disposed on the hole transport layer in the second region and an electron transport layer (ETL) disposed on the hydrophobic pattern and the emitting layer.

Method for forming OLED devices with patterned hole or electron transport layers

An organic light emitting device including: a first electrode, a hole injection layer on the first electrode, a hole transport layer on the hole injection layer, an organic light emitting layer on the hole transport layer, a first electron transport layer on the organic light emitting layer, a second electron transport layer on the organic light emitting layer, an electron injection layer on the second electron transport layer and a second electrode on the electron injection layer, where the first electron transport layer includes a first material for improving a thermal stability, a second material for improving a luminous efficiency and a third material for reducing a driving voltage, and the second electron transport layer is laminated with the first electron transport layer, and the second electrode faces the first electrode.

Organic light emitting device having stacked electron transport layers

The organic light-emitting display device includes: a substrate including a transistor region; and a thin-film transistor formed over the transistor region of the substrate and having a planarization film which is disposed over a source/drain electrode and a pixel defining layer which includes an aperture exposing a portion of a first electrode electrically connected to the source/drain electrode and defining a pixel region, wherein an outgassing hole is formed in a region of the pixel defining layer other than the aperture to expose the planarization film.

Organic light-emitting display device and method of manufacturing the same

A method is used for measuring injection energy associated with an organic light emitting diode display device. The method includes disposing the display panel inside a chamber and controlling temperature inside the chamber. The method further includes determining a plurality of electric current values corresponding to a plurality of temperature values for each voltage value of plurality of voltage values, the plurality of voltage values being associated with voltages provided to the organic light emitting member. The method further includes calculating a plurality of injection energy values using the plurality of electric current values and the plurality of temperature values.

Method and apparatus for measuring injection energy of organic light emitting diode display

An organic light emitting diode (OLED) display according to an exemplary embodiment of the present invention includes: a switching transistor configured to perform a switching operation according to a scan signal; a driving transistor configured to supply a driving current according to a data signal transmitted according to the switching operation of the switching transistor; an organic light emitting element electrically connected with the driving transistor and configured to emit light according to the driving current; a resistor having a first end connected with an anode of the organic light emitting element; and a bypass wire connected with a second end of the resistor.

Organic light emitting diode display

An organic light-emitting display device and a method of manufacturing the same are disclosed. The organic light-emitting display device includes: a substrate, a plurality of pixels on the substrate, a plurality of first electrodes, each disposed in each of the plurality of pixels, a pixel defining layer including a first pixel defining sub-layer disposed between each two adjacent first electrodes, and a second pixel defining sub-layer covering the first pixel defining sub-layer and surface edge portions of each two adjacent first electrodes, an intermediate layer disposed on each of the first electrodes and including an emission layer, and a second electrode configured to face the first electrodes.

Organic light-emitting display device and method of manufacturing the organic light emitting display device

An organic electro-luminescent display device includes a substrate, a pixel electrode on the substrate, and a pixel define layer covering edges of the pixel electrode and having an opening to expose the pixel electrode, a surface of the pixel define layer facing the opening being bent at a predetermined curvature.

Organic electro-luminescent display device

An organic light emitting display apparatus in which image quality can be improved. The organic light emitting display apparatus includes: a substrate; a first electrode disposed on the substrate; a pixel definition layer formed on the first electrode and having an opening portion through which a region of the first electrode is exposed; an intermediate layer connected to the first electrode through the opening portion and including an organic emission layer; a second electrode electrically connected to the intermediate layer; and an inorganic planarization pattern portion disposed between the substrate and the first electrode and formed to at least correspond to the opening portion.

Organic light emitting display apparatus

Provided are an organic light-emitting diode (OLED) display apparatus and a method of manufacturing the OLED display apparatus. Pixel-defining layers (PDLs) are formed of inorganic and organic insulating layers to minimize non-uniformities of the thicknesses of organic emission layers (OEMLs) and planarize lower thin film transistors (TFTs). Therefore, a lifespan of the OLED display apparatus is improved.

Growing community of inventors

Yongin, South Korea

Jae-Bok Kim