Samsung Display Co., Ltd.

Seong-Hyun Jin

Jae-Beom Choi

Jae-Hwan Oh

Won-Kyu Lee

Young-Jin Chang

Yeoung-Jin Chang

Se-Hun Park

Jong-Hyun Choi

Kwang-Hae Kim

Kwan-Wook Jung

June-Woo Lee

Dong-Hyun Lee

Dae-Woo Lee

Seong-Ho Kim

Guang-Hai Jin

Cheol-Ho Park

Hyung-Don Na

Ji-Hye Eom

Doo-Hyung Woo

Ga-Young Kim

Young-II Kim

Sung-Soo Choi

In-Do Chung

An organic light emitting display apparatus includes a substrate; a thin film transistor which is disposed over the substrate; a first electrode which is disposed over the substrate and electrically connected to the thin film transistor; a passivation layer which covers the thin film transistor and contacts a predetermined region of an upper surface of the first electrode; an intermediate layer which is disposed over the first electrode, includes an organic emission layer, and contacts a predetermined region of the passivation layer; and a second electrode which is disposed over the intermediate layer.

Organic light emitting display apparatus and method of manufacturing the organic light emitting display apparatus

The present invention provides a display device and a method of driving the same. The display device includes: a light-emitting device; a first capacitor connected between a first contact point and a second contact point; a driving transistor including an input terminal connected to a first voltage, an output terminal, and a control terminal connected to the second contact point; a first switching transistor controlled by a first control signal and connected between a data voltage and the first contact point; a second switching transistor controlled by a second control signal and connected between a second voltage and the first contact point; a third switching transistor controlled by a third control signal and connected between the second contact point and the second voltage; a fourth switching transistor controlled by the first control signal and connected between the second contact point and the output terminal of the driving transistor; and a fifth switching transistor controlled by the second control signal and connected between the light-emitting device and the output terminal of the driving transistor.

Display device and method of driving the same

An organic light emitting diode (OLED) display device and a method of manufacturing the same. The device includes a substrate, a thin film transistor (TFT) on the substrate and including an active layer, a gate electrode, a source electrode, and a drain electrode, a first pixel electrode coupled to one of the source and drain electrodes, a rough portion on the first pixel electrode, a second pixel electrode on the rough portion and having a rough pattern, an intermediate layer on the second pixel electrode including an organic emission layer (EML), and an opposing electrode on the intermediate layer.

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

A method of manufacturing an organic light-emitting display includes a first mask process forming an active layer of a TFT and a refractive layer on a substrate, forming a DBR layer covering the active and refractive layers, a second mask process forming a gate electrode and a first electrode unit on the DBR layer, forming an interlayer insulation layer covering the gate electrode and the first electrode unit, a third mask process forming contact holes in the interlayer insulation layer and the DBR layer exposing portions of the active layer and a hole exposing the first electrode unit, a fourth mask process forming source and drain electrodes on the interlayer insulation layer that contact the active layer via the contact holes, and forming a pixel electrode from the first electrode unit, and a fifth mask process forming a pixel definition layer exposing the pixel electrode.

Method of manufacturing organic light emitting display apparatus

A pixel includes an organic light emitting diode (OLED), a first transistor, a first capacitor, a second capacitor, and a pixel circuit. The OLED includes a cathode electrode connected to a second power source. The first transistor is connected between a data line and a first node, and turns on when a scan signal is supplied to a scan line. The first capacitor is connected between the first node and a third power source. The second capacitor is connected between the first node and a fourth power source. The pixel circuit controls a current quantity flowing from a first power source to the second power source through the OLED based on a voltage of the first node.

Pixel with multiple capacitors and organic light emitting display

An organic light-emitting display device includes a substrate. A buffer layer is formed on the substrate. A thin film transistor is disposed on the buffer layer. The thin film transistor includes an active layer, a gate electrode, a source electrode, a drain electrode, a first insulating layer, and a second insulating layer. An uneven pattern is formed by patterning the buffer layer. A first pixel electrode is disposed in an opening formed in the second insulating layer. The first pixel electrode includes a transparent conductive oxide. A second pixel electrode is disposed on the first pixel electrode. The second pixel electrode includes a semi-transmissive layer. An organic lighting-emitting layer is formed on the second pixel electrode. An opposite electrode is formed on the organic lighting-emitting layer.

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

A thin film transistor (TFT) array substrate is provided that includes a TFT on a substrate. The TFT can include an active layer, gate electrode, source electrode, drain electrode, first insulating layer between the active layer and the gate electrode, and second insulating layer between the gate electrode and the source and drain electrodes. A pixel electrode is disposed on the first and second insulating layers. A capacitor including a lower electrode is disposed on a same layer as the gate electrode and an upper electrode. A third insulating layer directly between the second insulating layer and the pixel electrode and between the lower electrode and the upper electrode. A fourth insulating layer covers the source electrode, the drain electrode, and the upper electrode, and exposes the pixel electrode and can further expose a pad electrode.

Method of manufacturing thin film transistor (TFT) array substrate

Provided are an organic light-emitting display apparatus having superior light efficiency and ease of manufacture, as well as a method of manufacturing the same. The organic light-emitting display apparatus includes: a substrate; a pixel electrode disposed on a pixel region of the substrate; a first insulating layer that is interposed between the substrate and the pixel electrode and that has a first discontinuous region extending along at least a portion of an edge of the pixel electrode; an intermediate layer that is disposed on the pixel electrode and that includes an emission layer; and an opposite electrode that covers the intermediate layer and at least a portion of the first discontinuous region, so that a shortest distance to the substrate in at least a portion of the first discontinuous region is shorter than a shortest distance between the pixel electrode and the substrate.

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

An array test method of an organic light emitting diode (OLED) display substrate is provided. The OLED display substrate includes a plurality of pixel circuits. Each pixel circuit includes an anode, a first transistor for transmitting a data signal that controls an amount of light emission of an OLED according to a scan signal, a driving transistor for receiving the data signal, generating a driving current corresponding to the data signal, and transmitting the driving current to the OLED, and a second transistor for diode-connecting a gate electrode and a drain electrode of the driving transistor. The array test method includes: injecting electrons or holes that generate an initialization voltage into the anode by turning on the second transistor; radiating electron beams at the anode; and determining whether or not the driving transistor performs normal operation from an amount of secondary electrons emitted from the anode.

Array test device and array test method for organic light emitting display device and method for manufacturing the organic light emitting display device

A laser crystallization system is disclosed. In one embodiment, the laser crystallization system includes i) a mother substrate including first, second, and third display regions sequentially arranged in a first direction and ii) a stage for supporting the mother substrate and moving in the first direction and in a second direction. The system also includes i) a first laser irradiation unit for irradiating a first laser beam having a width greater than or identical to a width of a side of one of the display regions in the first direction and ii) a second laser irradiation unit spaced apart from the first laser irradiation unit and irradiating a second laser beam having a width greater than or identical to the width of the side in the first direction. Furthermore, the first and second laser beams may correspond to widths of sides of the first and third display regions.

Laser crystallization system and method of manufacturing display apparatus using the same

An organic light emitting display device includes: a substrate; a thin film transistor (TFT) on the substrate and including an active layer, a gate electrode, a source electrode, and a drain electrode; an organic light emitting device including a pixel electrode that contacts at least one of the source electrode or the drain electrode of the TFT, an interlayer including a light emitting layer, and a counter electrode facing the pixel electrode, the pixel electrode, the interlayer, and the counter electrode being stacked; and a cathode contact part including a first contact layer and a second contact layer, the first contact layer being at a same layer as the active layer and being doped with ion impurities, the second contact layer including a same material as the source electrode and the drain electrode and coupling the first contact layer and the counter electrode to each other.

Organic light emitting display device and method of manufacturing the same

A photo sensor, a method of manufacturing the photo sensor, and a display apparatus, the photo sensor including a substrate; a light receiving unit on the substrate, the light receiving unit including an amorphous semiconductor material; a first adjacent unit and a second adjacent unit formed as one body with the light receiving unit, the first adjacent unit and the second adjacent unit being separated from each other by the light receiving unit; a first photo sensor electrode electrically connected to the first adjacent unit; and a second photo sensor electrode electrically connected to the second adjacent unit, wherein at least one of the first adjacent unit and the second adjacent unit includes a crystalline semiconductor material.

Photo sensor, method of manufacturing photo sensor, and display apparatus

A laser irradiation apparatus for irradiating a laser beam to a semiconductor layer including a plurality of pixel areas, the apparatus includes a laser generator generating the laser beam, and an optical switching unit time-dividing the laser beam generated from the laser generator and transmitting a plurality of time-divided laser beams to a plurality of optical systems. The apparatus includes a first optical system of the plurality of optical systems that receives a first time-divided laser beam and irradiates a first laser slit beam along a first irradiation direction, and a second optical system of the plurality of optical systems that receives a second time-divided laser beam and irradiates a second laser slit beam along a second irradiation direction that is parallel with the first irradiation direction. The first laser slit beam and the second laser slit beam crystallize partial areas at a same location in the respective pixel areas.

Laser irradiation apparatus

An organic light emitting display apparatus including sub pixels, each of the sub pixels including: first and second electrodes, the second electrode extending over the first electrode; and an intermediate layer disposed between the first and second electrodes, the intermediate layer including an emission layer, wherein a first portion of the first electrode, the second electrode, and the intermediate layer extends within a weak resonance region, the weak resonance region being configured to induce a first resonance of light generated by the emission layer between the first and second electrodes, and a second portion of the first electrode, the second electrode, and the intermediate layer extends within a strong resonance region, the strong resonance region being configured to induce a second resonance of light generated by the emission layer between the first and second electrodes, the second resonance being stronger than the first resonance.

Growing community of inventors

Yongin, South Korea

Seong-Hyun Jin