253 results about "Flexible organic light-emitting diode" patented technology

There is provided a flexible display having a plurality of innovations configured to allow bending of a portion or portions to reduce apparent border size and / or utilize the side surface of an assembled flexible display.

A light-emitting ball includes an inflatable ball bladder, a transparent skin layer that encloses the ball bladder, and an electrically operable display module, such as a flexible organic light emitting diode (OLED) display module, that is disposed between the ball bladder and the skin layer and that is operable to generate images visible through the skin layer.

Embodiments of the present invention generally relate to a touch sensible organic light emitting device. The organic light emitting device according to an exemplary embodiment of the present invention comprises: a substrate; a thin film transistor disposed on the substrate; an organic light emitting element connected to the thin film transistor and receiving a data voltage; a plurality of encapsulation thin films disposed on the organic light emitting element, and encapsulating the thin film transistor and the organic light emitting element; a planarization layer disposed on the encapsulation thin film; and a touch sensor disposed on the planarization layer.

The invention discloses a flexible organic light emitting diode display panel, a display device and a fabrication method of the flexile organic light emitting diode display panel. The flexible organic light emitting diode display panel comprises a substrate, an organic light emitting device, a package thin film and at least retaining wall structures and also comprises an organic dielectric layer, wherein the substrate contains a display region and a non-display region, the organic light emitting device is arranged on the display region of the substrate, the package thin film covers the organic light emitting device and comprises an organic layer and at least one inorganic layer, the at least two retaining wall structures are arranged on the non-display region of the substrate, two adjacent retaining wall structures are arranged at intervals, the at least one part of retaining wall structures are covered by the package thin film, and the organic dielectric layer is arranged between the at least two adjacent retaining wall structures, is arranged on the substrate and is covered by the at least one inorganic layer. Since the inorganic layer and the organic dielectric layer are filled between the retaining wall structures, the stress generated by the inorganic layer during bending for many times can be effectively absorbed by the organic dielectric layer, and a crack is prevented from being generated between the retaining wall structures.

Lighting apparatus includes a solid-state area illumination light source, having: a planar flexible substrate, a flexible organic light emitting diode (OLED) layer deposited on the flexible substrate, the organic light emitting diode layer including first and second electrodes for providing electrical power to the OLED layer, a flexible encapsulating cover covering the OLED layer, and first and second conductors electrically connected to the first and second electrodes, and extending beyond the encapsulating cover for making electrical contact to the first and second electrodes by an external power source, whereby the light source may be stored in a space saving planar configuration; and a lighting fixture for removably receiving and holding the light source in a curved 3 dimensional configuration, the lighting fixture including a support for holding the light source in the curved configuration and contacts for providing electrical contact between said first and second conductors and an external power source.

The present invention discloses all-in-one organic electroluminescent inks for balanced charge injection. When of single layer organic lighting emitting diodes are made from these inks, the charge balance can be readily achieved. By using the invented all-in-one organic electroluminescent inks, both the device structure and the fabrication process are simplified, which will increase the production yield and reduce the production cost in manufacturing such devices. This invention also teaches methods to fabricate single layer all-in-one organic light emitting diodes.

The present invention provides an organic light-emitting diode display substrate, a manufacturing method therefore, and a display device thereof. The organic light-emitting diode display substrate comprises a substrate, an organic light-emitting diode device located on the substrate and a film encapsulation layer. The film encapsulation layer is configured to package the organic light-emitting diode device, and includes at least one inorganic thin layer and at least one organic thin layer which are mutually and alternatively arranged and a hydrophobic retaining wall with a micro-nano structure arranged on the substrate and located at the periphery of the film encapsulation layer. The hydrophobic retaining wall is formed prior to formation of the organic thin layer, and is able to block the fluidity of the ink used for ink-jet printing when a printing technology is employed to prepare the organic thin layer so as to restrict the climbing distance of the organic thin layer and provide technology guarantee for the narrow-edge framing of displaying products of a soft organic light-emitting diode.

The invention provides a fabrication method of a flexible organic electroluminescence diode display. The fabrication method comprises the following steps: providing a rigid substrate; attaching a flexible substrate onto the rigid substrate through an adhesive layer; fabricating an organic light-emitting display layer on the flexible substrate; packaging the organic light-emitting display layer to form a packaging layer; separating the rigid substrate from the flexible substrate; carrying out power on-test to a product obtained after the rigid substrate is stripped; cutting the product to form a FOLED (Flexible Organic Light-Emitting Diode) display unit; defining light-emitting zone on the FOLED display unit and non light-emitting zone located beyond the light-emitting zone; arranging the organic light-emitting display layer aligned with the light-emitting zone; supplying power to at least FOLED display units which are in display state; overlapping substrates of at least two FOLED display units through para-position, so that the non light-emitting zone of one FOLED display unit is overlapped with the light-emitting zone of the other FOLED display unit.

A flexible organic light emitting diode display and a manufacturing method thereof are provided. The flexible organic light emitting diode (OLED) display according to an exemplary embodiment includes: a substrate; an organic light emitting diode (OLED) layer provided on the substrate; and a thin film encapsulation layer provided on the OLED layer. The thin film encapsulation layer includes a plurality of laminated inorganic layers, at least one inorganic layer of the plurality of inorganic layers includes a plurality of inorganic layer patterns that are disposed to be spaced apart from each other on a plane, and an organic layer is formed between the plurality of inorganic layer patterns.

The invention discloses a preparation method for a flexible organic light emitting diode (OLED), comprising the following steps: (1) a polyethylene terephthalate (PET) sheet is fixed at a support plate by binder as a base plate; the surface of the base plate is cleaned and dried; a barrier layer which is formed by successive alternating deposit of thin polymer films and thin inorganic material films with high transmittance is prepared on the base plate; the refractive index of the thin polymer films and the thin inorganic material films matches with the refractive index of the base plate; (2) an indium tin oxide (ITO) film and a metal layer are prepared at the base plate equipped with the barrier layer and etching of a metal line and an ITO line and making of polyimide (PI) patterns and RIB patterns are completed; during etching of the metal line and the ITO line, mechanical stirring or ultrasonic stirring are performed on the etching liquid; (3) then the base plate is put in an evaporation chamber for evaporation of an organic function layer and a negative electrode; (4) a thin film packaging layer is prepared on the surface of the negative electrode by vacuum evaporation and the packaging layer is formed by alternating deposit of at least one layer of organic material and at least one layer of inorganic material; and (5) the base plate is stripped off the support plate.

The invention discloses an organic compound based on heteroaryl amine structure and application thereof to an OLED (Organic Light Emitting Diode). The compound structurally contains heteroaryl and benzo-heteroaryl amine structures at the same time, has relatively shallow LUMO energy stage, relatively high glass transition temperature and molecular thermal stability; the absorption in the visible light field is low; the refractive index is high; after the organic compound is applied to the CPL layer of the OLED device, the light extraction efficiency of the OLED device can be effectively improved.

The invention provides a flexible organic light-emitting diode display and a method for manufacturing the same. The flexible organic light-emitting diode display comprises a first flexible substrate and a second flexible substrate opposite to the first flexible substrate. A thin film transistor, a first passivation layer, a first electrode, an organic light-emitting layer and a second electrode are sequentially manufactured on the first flexible substrate, and the cathode, the anode, the thin film transistor (TFT) and the second flexible substrate are sequentially positioned on the first flexible substrate. The flexible organic light-emitting diode display is characterized in that a stress absorbing layer is further arranged between the second electrode and the second flexible substrate and is made of resin materials. The flexible organic light-emitting diode display and the method have the advantage that stress generated by the flexible organic light-emitting diode display in a bending procedure can be absorbed, so that breakage of the electrodes of the flexible organic light-emitting diode display and the influence on the display quality due to the effect of the stress can be prevented.

The invention provides an OLED (organic light emitting diode) display unit driving system and an OLED display unit driving method. The OLED display unit driving system leads a common voltage signal (Vcm) in a threshold voltage detection circuit (2) into a sub-pixel driving circuit (1) and applies the common voltage signal (Vcm) to an organic light emitting diode (D1) in a write-in stage, so that the organic light emitting diode is at a negative pressure and reverse bias state; then the common voltage signal (Vcm) is removed from the organic light emitting diode (D1) in a lighting stage, so that the organic light emitting diode (D1) boosts from negative pressure to positive pressure and lights normally, the organic light emitting diode (D1) is subjected to alternate current drive of positive pressure and negative pressure when each frame of picture is refreshed, aging of the OLED is delayed, and the service life of the OLED is prolonged. The OLED display unit driving method provided by the invention delays the aging of the OLED and prolongs the service life of the OLED.

The present disclosure relates to a flexible organic light emitting diode display having an edge bending structure. The organic light emitting diode display according to an embodiment includes a flexible plate including a display area, a non-display area surrounding the display area, and an edge bending area near the display area in the non-display area; a first line disposed in the non-display area on the flexible plate; a first buffer layer covering the first line; a second line on the first buffer layer in the non-display area; a second buffer layer covering the second line; gate elements disposed on the second buffer layer; an intermediate insulating layer covering the gate elements; data elements, and a connecting electrode connecting the first line to the second line on the intermediate insulating layer; and a plurality of trenches disposed at the edge bending area and penetrating the intermediate insulating layer, the second buffer layer and the first buffer layer.

The invention relates to a flexible organic light emitting diode device based on a graphene composite anode. The flexible organic light emitting diode device comprises a flexible substrate (1), an anode (2), a hole injection layer (3), an organic functional layer (4), an electron injection layer (5) and a cathode (6), wherein the anode (2) is the graphene composite anode and comprises a graphene thin film and a metal coating. According to the flexible organic light emitting diode device, the anode of the graphene thin film is improved, so that the organic light emitting diode anode with excellent transmittance and sheet resistance can be obtained, and the flexible organic light emitting diode device is good in bendability and weak in microcavity effect. By means of the flexible organic light emitting diode device, the problem that the organic light emitting diode device is difficult to manufacture due to high sheet resistance of the graphene anode is solved, the improvement of performances of the flexible organic light emitting diode device is facilitated, and the application of the graphene anode to the organic light emitting devices is accelerated.

The invention relates to an organic electroluminescent technology and discloses a method for improving the luminous efficiency. The method can be applied to various types of OLED (Organic Light Emitting Diode) devices of bottom emission, top emission, transparency and the like. The invention provides an optical transition layer material, an optical substrate (packaging layer), an OLED, and manufacturing methods thereof. If the OLED is the bottom-emission OLED, an optical transition layer is manufactured on the substrate; if the OLED is the top-emission OLED, the optical transition layer is manufactured on the packaging layer; and if the OLED is the transparent OLED, the optical transition layer can be independently or simultaneously manufactured on the substrate or the packaging layer. An organic material main body with high light transmittance and moderate refractive index and an inorganic nano grain with the high light transmittance and low absorption rate are selected; the inorganic nano grain is used as a scattering medium to be scattered into the organic material main body to prepare the optical transition layer material; and the optical transition layer material is used for preparing an optical transition layer on the substrate (packaging layer) including glass and the like, so that the full-reflection loss of emergent light is effectively reduced and the luminous efficiency of the OLED is improved by 20-50%.

The organic light emitting diode display may comprise a cover window including a display region and a non-display region that surrounds the display region; a flexible substrate arranged on a lower portion of the cover window, and including a first region that is spaced apart from the cover window and a second region that extends from the first region toward the cover window; and an adhesive layer arranged between the cover window and the flexible substrate to make the cover window and the flexible substrate adhere to each other.

Provided is a white organic light emitting device capable of realizing characteristics of excellent color purity and high efficiency through structural simplification. The white organic light emitting device includes an emission layer, a hole blocking layer and an electron transport layer which are deposited between an anode and an cathode to which a bias is applied, wherein a host having a blue luminescence property and a first guest having any one of orange and red luminescence properties are doped into the emission layer, and a material having a green luminescence property is included in the electron transport layer.

Described is a method for making a flexible OLED lighting device. The method includes forming a plurality of OLED elements on a flexible planar substrate, each of the OLED elements including a continuous respective anode layer formed over the substrate. One or more organic light emitting materials is formed over the anode layer; a continuous cathode layer having a first thickness is formed over the light emitting materials; and a discontinuous cathode layer having a second thickness is formed over the continuous cathode layer. An encapsulating protective cover may be formed over the cathode layers. Each of the OLED elements defines a bendable, continuous light region on the substrate, wherein the substrate and combination of OLED elements define an OLED device that more effectively dissipates heat and has an active light area that is bendable.

The invention relates to the technical field of organic electroluminescent devices, and discloses an organic light emitting material and an organic light emitting diode (OLED) device comprising the same. The organic light emitting material has a structure represented by the formula (D). The material is used as the light emitting material of an organic light emitting diode, has a TADF function anda light extraction function at the same time, and is a guest material with a balanced hole transfer and electron transfer performance. More importantly, the organic light emitting material does not contain any functional group such as carbazole, triphenyl amine, or the like; thus the stability of the material is good, and avoided are the situations that the chemical bonds are broken, material aging happens, and the device performance deteriorates quickly during the long term using process of OLED devices.

The invention discloses an organic luminous physiotherapy device which uses a flexible organic light-emitting diode panel as a light source and is used for being partially adhered to surround or cover a part of a human body so as to achieve the purpose of physiotherapy. By virtue of the flexibility of the flexible organic light-emitting diode panel, the organic luminous physiotherapy device can be directly adhered to the surface of the human body, does not need other flexible substrate, and is simple in structure; furthermore, an organic light-emitting diode is a surface luminous device and is uniform in luminescence; more importantly, the organic luminous physiotherapy device can realize color adjustment by virtue of control of a filtering element or subpixel illuminated switches in pixel units according to actual requirements, and is wide in application range; various wires in the organic luminous physiotherapy device are arranged in the flexible organic light-emitting diode panel, are not influenced by external environments, are safe and reliable, and are long in service life.

Imidazopyridine-based compounds and organic light emitting diodes (OLEDs) including organic layers including the imidazopyridine-based compounds are provided. The organic light emitting diodes including organic layers having the imidazopyridine-based compounds have low driving voltages, high efficiencies, high luminance, long life-times and low power consumption.

Lighting apparatus includes a solid-state area illumination light source, having: a planar flexible substrate, a flexible organic light emitting diode (OLED) layer deposited on the flexible substrate, the organic light emitting diode layer including first and second electrodes for providing electrical power to the OLED layer, a flexible encapsulating cover covering the OLED layer, and first and second conductors electrically connected to the first and second electrodes, and extending beyond the encapsulating cover for making electrical contact to the first and second electrodes by an external power source, whereby the light source may be stored in a space saving planar configuration; and a lighting fixture for removably receiving and holding the light source in a curved 3 dimensional configuration, the lighting fixture including a support for holding the light source in the curved configuration and contacts for providing electrical contact between said first and second conductors and an external power source.

A shoe device comprising a shoe component; at least one electronic display disposed on a portion of the shoe component, the electronic display is constructed from at least three layers including a center layer constructed from a flexible organic light-emitting diode (OLED) display for providing active color and graphics, a waterproof outer layer, and a fabric inner layer, the outer layer and inner layer sandwich the center layer; a universal serial bus (USB) port; a microprocessor operatively connected to the flexible OLED display and USB port, the microprocessor is configured to send output commands to the flexible OLED display to cause the flexible OLED display to display graphic data; and one or more control buttons for manipulating the microprocessor and flexible OLED display.

The invention provides a manufacturing method of a flexible AMOLED (active matrix / organic light emitting diode) display screen and a conductive adhesive film layer. The flexible AMOLED display screen is provided with a flexible substrate (21), a plurality of bonding terminals (22), a conductive adhesive film layer (23) and an IC (integrated circuit) chip by layers from bottom to top; the conductive adhesive film layer (23) comprises a plurality of conductive thin films (231) and a plurality of insulation thin films (232), which are sequentially and alternatively staggered in the extending direction of the IC chip (24); the conductive thin films (231) are used for replacing the conductive particles which are dispersed in the existing anisotropic conductive adhesive thin films and only can be broken by larger stress to conduct the IC chip (24) and the bonding terminals (22). The manufacturing method can solve the problems of cracks of the flexible substrate and failure to conduct the IC chip and the bonding terminal due to the unbroken conductive particles in the bonding process of the prior art.