Sakai Display Products Corporation

Sharp Kabushiki Kaisha Corporation

Yukiya Nishioka

Katsuhiko Kishimoto

Kohichi Tanaka

Mikio Katayama

Yukinobu Nakata

Yoshinori Shimada

Mayuko Sakamoto

Takehisa Sakurai

Hidenori Negoto

This organic-EL display apparatus comprises: a substrate with a drive circuit comprising a thin-film transistor (TFT), a planarizing layer to cover the drive circuit, and an organic light-emitting element formed upon the surface of the planarizing layer facing the opposite direction from the drive circuit. The TFT comprises a drain electrode, a source electrode, and a semiconductor layer that includes regions to be a channel of TFT and partially overlaps with the source and drain electrodes. Respective parts of a first conductor layer forming the drain electrode and a second conductor layer forming the source electrode are arranged in an alternating manner along a prescribed direction, and the region to be the channel is sandwiched between the part of the first conductor layer and the part of the second conductor layer.

Organic-EL display apparatus with zig-zag source drain electrodes and manufacturing method thereof

The present disclosure protects a flexible substrate and prevents the generation of a crack and the development of a crack inside a display device. A display device includes a display area and a frame region which is a non-display area provided outside the display area, and in the frame region, at least a flexible substrate and a moisture-proof layer are disposed in this order, and a metal oxide film is further provided between the flexible substrate and the moisture-proof layer.

Display device and method for manufacturing display device to inhibit development of display defects

This organic-EL display apparatus comprises: a substrate with a drive circuit comprising a thin-film transistor (TFT), a planarizing layer to cover the drive circuit, and an organic light-emitting element formed upon the surface of the planarizing layer facing the opposite direction from the drive circuit. The surface of the planarizing layer has an arithmetic average roughness of 50 nm or less. The TFT comprises a drain electrode, a source electrode, and a semiconductor layer that includes regions to be a channel of TFT and partially overlaps with the source and drain electrodes. Respective parts of a first conductor layer forming the drain electrode and a second conductor layer forming the source electrode are arranged in an alternating manner along a prescribed direction, and the region to be the channel is sandwiched between the part of the first conductor layer and the part of the second conductor layer.

Organic-EL display device with alternately lined source drain electrodes and manufacturing method thereof

The present invention is equipped with a substrate upon which a drive circuit containing a TFT, a planarization film, and an OLED are formed. The TFT is provided with a gate electrode, a drain electrode, a source electrode, and a semiconductor layer with regions serving as the channel and extends along a prescribed direction. The drain electrode and the source electrode are disposed such that respective portions of the drain electrode and the source electrode are arranged in an alternating manner along the prescribed direction. The connection between the drive circuit and the OLED is achieved via a conductor layer with a Ti layer and a Cu layer (Cu alloy layer) and is embedded in the interior of a contact hole formed in the planarization film, and the surface of the planarization film is formed with an arithmetic mean roughness Ra of no more than 50 nm.

Organic EL display device with reduced surface roughness and manufacturing method therefor

By using an a-Si layer with low electron mobility in a TFT for driving an organic EL display device, the present invention solves problems stemming from uneven laser irradiation and suppresses the occurrence of non-uniform color and luminance. In the present invention, a first conductor film () forming a drain electrode and a second conductor film () forming a source electrode are disposed such that respective portions (. . . ) of the first conductor film () and the second conductor film () are arranged in an alternating manner along a prescribed direction.

Organic electroluminescent (EL) display device with comb-shaped source and drain electrodes and manufacturing method therefor

According to a flexible light-emitting device production method of the present disclosure, after an intermediate region and flexible substrate regions of a plastic film of a multilayer stack are divided from one another, the interface between the flexible substrate regions and a glass base is irradiated with lift-off light. The multilayer stack is separated into a first portion and a second portion while the multilayer stack is in contact with a stage. The first portion includes a plurality of light-emitting devices which are in contact with the stage. The light-emitting devices include a plurality of functional layer regions and the flexible substrate regions. The second portion includes the glass base and the intermediate region. The stage has ejection holes in a region which is to face the intermediate region, from which a fluid is ejected in the separation step.

Method and apparatus for manufacturing flexible light-emitting device

An organic EL light-emitting element is provided in which, by means of an organic material that is oligomeric, an organic layer coated filmis formed in a high-definition pixel pattern in the openingsof insulation banksthat are formed to be hydrophilic; a manufacturing method of said organic EL light-emitting element is also provided. The coated filmis formed by dropwise injection of a liquid composition containing an organic material oligomer.

Organic EL light-emitting element and manufacturing method thereof

Organic EL device with alternately lined source drain electrodes

An organic EL display apparatus () has a plurality of pixels including red pixels (R), green pixels (G) and blue pixels (B), the apparatus () including: a substrate (); a plurality of organic EL elements () supported on the substrate, with one organic EL element provided in each pixel; a generally lattice-shaped first bank () defining the pixels, the first bank including a plurality of first portions (A) extending in a first direction and a plurality of second portions (B) extending in a second direction that crosses the first direction; and a plurality of second banks () provided on a top portion () of the first bank, wherein the second banks are not formed at intersections (cr) between the first portions and the second portions of the first bank, and the second banks are more liquid repellent than the first bank.

Organic electroluminescent display apparatus

An organic EL light-emitting element is provided in which, by means of an organic material that is a oligomer with a molecular weight of 300-5000, an organic layer coated filmis formed in a high-definition pixel pattern in the openingsof insulation banksthat are formed with a hydrophilic material; a manufacturing method of said organic EL light-emitting element is also provided. The coated filmis formed by dropwise injection of a liquid composition containing an organic material oligomer.

Organic EL display apparatus with reduced surface roughness and electrode having silver and ITO and manufacturing method therefor

According to a flexible OLED device production method of the present disclosure, after an intermediate region () and flexible substrate regions () of a plastic film () of a multilayer stack () are divided from one another, the interface between the flexible substrate regions () and a glass base () is irradiated with laser light. The multilayer stack () is separated into a first portion () and a second portion () while the multilayer stack () is in contact with a stage (). The first portion () includes a plurality of OLED devices () which are in contact with the stage (). The OLED devices () include a plurality of functional layer regions () and the flexible substrate regions (). The second portion () includes the glass base () and the intermediate region (). The stage () has ejection holes in a region which is to face the intermediate region (), from which a fluid is ejected in the separation step.

Method and apparatus for producing flexible OLED device

This organic-EL display apparatus comprises an organic-EL display panel including: a substrate that is provided with pixel drive circuits to drive respective pixels arranged in a matrix along each of a first direction and a second direction, and organic light-emitting elements being provided to each of the pixels and connected to any one of the pixel drive circuits. The organic-EL display panel comprises a signal output circuit to supply a signal to each of the pixel drive circuits arranged in a line along the first direction or the second direction. The signal output circuit includes thin film transistors and is formed around a display region on a surface of the substrate. The thin film transistors include a semiconductor layer including a region to be a channel between a source electrode and a drain electrode. The semiconductor layer is formed of amorphous silicon.

Organic EL display device and manufacturing method for organic EL display device

This organic EL display device () has multiple pixels, and comprises: an element substrate () which has a substrate and multiple organic EL elements supported on the substrate and arranged in each of the multiple pixels; and a thin-film sealing structure () covering the multiple pixels. The thin-film sealing structure has a first inorganic barrier layer () and an organic barrier layer () contacting the upper surface or the lower surface of the first inorganic barrier layer. The element substrate further has a bank layer () defining each of the multiple pixels and multiple spacers () arranged in the gaps between the pixels, and the multiple spacers () are covered by the bank layer ().

Organic electroluminescent display device and method for producing same

An organic EL light-emitting element is provided in which, by means of an organic material that is oligomeric, an organic layer coated filmis formed in a high-definition pixel pattern in a 100-2500 &#x3bc;marea; a manufacturing method of said organic EL light-emitting element is also provided. The coated filmis formed by dropwise injection of a liquid composition containing an organic material oligomer in openings of insulation banks that are formed at a height of 0.5-1 &#x3bc;m.

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Sakai, Japan

Yukiya Nishioka