1139 results about "OLED" patented technology

Sub-pixel circuits and methods of forming sub-pixel circuits that may be utilized in an organic light-emitting diode (OLED) display are described herein. The adjacent metal-containing overhang structures defining each sub-pixel of the sub-pixel circuit of the display provide for formation of the sub-pixel circuit using evaporation deposition and provide for the metal-containing overhang structures to remain in place after the sub-pixel circuit is formed (e.g., utilizing the methods of the fifth, sixth, or seventh exemplary embodiments). Evaporation deposition may be utilized for deposition of an OLED material and cathode. The metal-containing overhang structures define deposition angles, i.e., provide for a shadowing effect during evaporation deposition. The encapsulation layer of a respective sub-pixel is disposed over the cathode with the encapsulation layer extending under at least a portion of each of the adjacent metal-containing overhang structures and along a sidewall of each of the adjacent metal-containing overhang structures.

The present disclosure provides for an organic electroluminescent device (OLED) including an anode; a cathode; and an emissive layer, disposed between the anode and the cathode. The emissive layer includes a phosphorescent dopant, a first host, and a second host, wherein the first host transports holes, the second host transports electrons, and the first host is fully or partially deuterated. Consumer products that include the OLED are also provided.

A compound of Formula Ir(LA)x(LB)y(LC)z is provided where x and y are independently 1 or 2; z is 0 or 1; and x+y+z=3; first ligand LA includes a structure of Formula I,ligand LB includes a structure of Formula II:and ligand LC is a bidentate ligand. In the compounds, moiety B is a polycyclic fused ring system comprising at least four rings; each of moiety C and moiety D is a monocyclic ring or a polycyclic fused ring system; each of X1 to X4 and Z1 to Z6 is C or N; L0 is a direct bond or a linking group; YA is a linking group; each substituent is hydrogen or a General Substituent defined herein; and any two substituents may be joined or fused to form a ring. Formulations, OLEDs, and consumer products containing the compound are also provided.

The invention relates to an irradiation module for use in a device (1) for irradiation with medical and cosmetic radiation, comprising a plurality of LEDs arranged on a carrier. The invention also relates to a device for irradiating a user (10) with medical and cosmetic radiation, comprising a plurality of irradiation modules (40) for irradiation with medical and cosmetic radiation, which modules are accommodated in a housing part (20; 30). The invention further relates to a method for irradiating a user (10) with medical and cosmetic radiation, comprising a plurality of irradiation modules (40) for irradiation with medical and cosmetic radiation, which modules are selected from the group comprising fluorescent tubes, LEDs, organic LEDs, and high-pressure lamps. In order to provide an irradiation module and a device and a method with which improved irradiation results can be achieved according to the invention, a first group of first LEDs, which emits radiation within the UVA spectrum, and a second group of second LEDs, which emits radiation within the UVB spectrum, are arranged on the carrier.

This disclosure provides systems, methods, and apparatuses for transparent displays that support two-way viewing angles. A transparent display may include one or more organic light-emitting diode (OLED) pixels configured for directional display in multiple directions. The pixel configuration may include an OLED, a set of switchable mirrors converging at an angle and configured to reflect an emission from the OLED, and a polymer dispersed liquid crystal (PDLC) material bisecting the angle between the set of switchable mirrors. The pixel configuration may display a first color in a first direction in accordance with the set of switchable mirrors being in a transparent state and the PDLC material being in an opaque state. The pixel configuration may additionally display a second color in a second direction in accordance with the set of switchable mirrors being in a mirrored state and the PDLC material being in a second transparent state.

Provided are organometallic compounds having a structure ofAlso provided are formulations comprising these organometallic compounds. Further provided are OLEDs and related consumer products that utilize these organometallic compounds.

A lighting structure and a wearable device are provided. The lighting structure is provided, including at least one light source, a battery, and a control module. The at least one light source includes one or any combination of a first light-emitting diode (LED), a first electro-luminescent (EL) wire, a first optical fiber, and an organic light-emitting diode (OLED). The battery includes either a disposable battery or a rechargeable battery. The lighting structure includes the at least one light source and the battery, the at least one light source is configured as including a plurality of light-emitting materials or a single light-emitting material, and power supply modes of the lighting structure are also various, so that optimal lighting effect of the lighting structure is achieved.

The invention relates to the technical field of acrylate adhesives, in particular to a strong acid corrosion resistant high-viscosity UV visbreaking protective film and a preparation method thereof. The protective film provided by the invention is prepared from the following raw materials in parts by mass: 50 to 75 parts of high-Tg acrylic UV resin, 25 to 50 parts of low-Tg acrylic UV resin, 1 to 3 parts of photoinitiator, 10 to 20 parts of trifunctional UV active monomer PETA, 50 to 100 parts of solvent and 1 to 3 parts of cross-linking agent. The acid-resistant time of the prepared protective film in a 20wt% HF solution at the temperature of 50 DEG C exceeds 4 h, the adhesive force before UV reaches 1600-1900g / 25mm, the adhesive force after UV is reduced to 0-15g / 25mm, no adhesive residue exists, reliable protection and lossless stripping in a precise element strong acid process can be achieved, the requirements of high-end manufacturing industries such as semiconductors and OLEDs can be met, and meanwhile the protective film has the advantages of being stable in process, environmentally friendly and compliant.

The invention belongs to the technical field of luminescence and display, and particularly relates to a D-A type green light TADF material and application thereof in OLEDs. The luminescent material comprises an oxygen bridge triphenylboron acceptor unit and oxygen bridge triphenylamine which are used as donor units, and a green light TADF material is constructed through simple coupling. The rigid large plane structure of the material limits rotation of a benzene ring, vibration relaxation of a condensed ring structure is reduced, and the photoluminescence efficiency as high as 90% is obtained. Research results show that the maximum emission peak of the device is 518 nm and the maximum external quantum efficiency (EQE) of the device is 37.8% under different doping concentrations when the OLEDs are processed by the solution, especially under the doping concentration of 5-100%, the electrogenerated emission peak change of the device is small, the EQE of 30% or above is kept, the excellent concentration quenching inhibition performance is shown, and the application prospect is attractive.

The invention discloses a high-power organic light emitting diode. The organic light-emitting material suitable for a high-power organic light-emitting diode is obtained by testing the triplet exciton lifetime of the organic light-emitting material. The high-power organic light-emitting diode comprises an optical radiation layer, the optical radiation layer comprises an organic light-emitting material, and the triplet exciton lifetime of the organic light-emitting material is smaller than or equal to 1 microsecond. The high-power organic light-emitting diode provided by the invention has an extremely low efficiency roll-off effect, and when the external quantum efficiency is reduced to half of the maximum value, the driving current density of the device is greater than 3 amperes / cm < 2 >; the laser has the characteristics of high radiation exitance (greater than 15 milliwatts / cm < 2 >), continuously adjustable spectrum, simple structure, long service life, capability of solution processing, capability of large-area processing and the like.

The invention relates to organic electroluminescent materials and devices. There is provided a compound having the formula Ir (LA) x (LB) y (LC) z wherein x and y are each independently 1 or 2, z is 0 or 1, and x + y + z = 3; the first ligand LA comprises a structure as shown in a formula I; lB comprises a structure of formula II; and LC is a bidentate ligand. In these structures, each of the moieties A, C and D is a monocyclic or polycyclic fused ring system; each of X1-X7 and Z1-Z4 is C or N; y1 is a linking group; z is Si or Ge; and each substituent is hydrogen or a universal substituent as defined herein. Formulations, OLEDs, and consumer products containing the compounds are also provided. Further provided is a method of preparing a compound of formula M '(LA') p (LB ') q (LC') r as defined herein.

Provided is an organic light-emitting diode comprising a first electrode, a second electrode, and a light-emitting layer located between the first electrode and the second electrode, wherein the light-emitting layer comprises a novel composite light-emitting compound represented by Chemical Formula 1 described in the detailed description.

The invention relates to organic electroluminescent materials and devices. The present invention provides a compound of formula Ir (LA) x (LB) y (LC) z, wherein LA has a structure comprising formula I # imgabs0 #. In Formula I, each of X3 to X7 is N or CR; z is an electron withdrawing group; y is a linking group; each R, R ', R3, R4, R5, RA and RB is hydrogen or a universal substituent as defined herein; and each R1 and R2 is a substituent comprising at least one carbon atom. The invention also provides formulations, OLEDs and consumer products containing the compounds.

The invention discloses a sub-pixel defect detection and judgment method and system based on dual-camera collaboration and multi-channel color segmentation. The method comprises the steps of dual-camera collaboration collection, defect positioning and sub-pixel-level background modeling, multi-channel color point color judgment, black and white image defect extraction and brightness measurement and dynamic defect judgment. According to the method, the problems of sensitivity, positioning precision, color judgment accuracy and judgment consistency of sub-pixel defect detection under the low-gray-scale (L0 level) working condition are solved, the color point recognition accuracy rate reaches 97.2%, the human vision correlation coefficient reaches 0.92, and the method is suitable for factory detection of self-luminous displays such as OLEDs and Micro-LEDs.

Disclosed herein is an organic light emitting diode device. The organic light emitting diode device includes an anode, a cathode and a light emitting layer. The light emitting layer has a structure where a blue light emitter and a red / green simultaneous light emitter are stacked. The red / green simultaneous light emitter has a structure where a red light emitter and a green light emitter are stacked. The red light emitter includes a red host compound, and in some embodiments, the red host compound includes a spirobisfluorene-based compound where an aryl amino group is substituted. The green light emitter includes a green host compound, and the green host compound includes a mixture of a first green host compound and a second green host compound. In some embodiments, the first green host compound includes a biscarbazole-based compound and the second green host compound includes an indolocarbazole-based compound.

The invention relates to a nitrogen-containing bowl-shaped conjugated pH-responsive fluorescent probe and a preparation method and application thereof, the nitrogen-containing bowl-shaped conjugated pH-responsive fluorescent probe is characterized in that the structural formula of the nitrogen-containing bowl-shaped conjugated pH-responsive fluorescent probe is # imgabs0 #, and R is hydrogen, acetyl or p-toluenesulfonyl. Compared with the prior art, the nitrogen-containing bowl-shaped conjugated molecule provided by the invention shows a highly sensitive response characteristic in an acid-base medium. Due to the introduction of nitrogen atoms, the electronic structure of molecules is obviously changed, lone pair electrons of the nitrogen atoms can participate in the reaction, and the protonation behavior is obvious under the acidic condition. After protonation, the fluorescence intensity of the molecule is obviously enhanced, and the emission wavelength has obvious red shift, so that the probe has important application value in the aspect of developing a high-sensitivity acid-base sensor. In addition, the nitrogen-containing polycyclic aromatic hydrocarbon compound also shows application prospects in the fields of organic light-emitting diodes, information safety, biological imaging and the like.

Embodiments described herein relate to a sub-pixel. In one or more embodiments, a sub-pixel includes a substrate and overhang structures. The overhang structures include an extension disposed past a sidewall of the overhang structures. The sub-pixel further includes an anode disposed over the substrate, an inorganic layer disposed under each extension of the overhang structures, and organic light-emitting diode (OLED) material disposed over the anode. The OLED material is disposed between the inorganic layer under each extension of the overhang structures; The sub-pixel further includes a cathode disposed over the OLED material.

An organic light emitting diode display device are provided. The organic light emitting diode display device includes: a substrate; a barrier layer, located on a side of the substrate; a first buffer layer, located on a side of the barrier layer; a first semiconductor layer, located on a side of the first buffer layer; a first gate insulating layer, located on a side of the first semiconductor layer; a first gate electrode, located on a side of the first gate insulating layer; a second buffer layer, located on a side of the first gate electrode; a second semiconductor layer, located on a side of the second buffer layer; a second gate insulating layer, located on a side of the second semiconductor layer; a second gate electrode, located on a side of the second gate insulating layer.

The invention relates to organic electroluminescent materials and devices. An organometallic compound is provided comprising a Pt or Pd atom as a central metal atom wherein the central metal atom is coordinated by a tetradentate ligand. Formulations comprising these organometallic compounds are also provided. Further provided are organic light emitting devices (OLED) and related consumer products utilizing these organometallic compounds.

A display may have an array of pixels each of which has a light-emitting diode such as an organic light-emitting diode. A drive transistor and an emission transistor may be coupled in series with the light-emitting diode of each pixel between a positive power supply and a ground power supply. The pixels may include first and second switching transistors. A data storage capacitor may be coupled between a gate and source of the drive transistor in each pixel. Signal lines may be provided in columns of pixels to route signals such as data signals, sensed drive currents from the drive transistors, and predetermined voltages between display driver circuitry and the pixels. The switching transistors, emission transistors, and drive transistors may include semiconducting-oxide transistors and silicon transistors and may be n-channel transistors or p-channel transistors.

Voltage regulating devices for organic light emitting diodes (OLED) are provided. The voltage regulating device includes an operational amplifier and a voltage output circuit. The operational amplifier generates an output voltage. The voltage output circuit is coupled to the operational amplifier. The voltage output circuit is controlled by a selection signal to generate a control voltage selectively using a first operating voltage interval or a second operating voltage interval. A voltage value of the control voltage is related to a reference voltage of the OLED, and the selection signal is correspondingly generated according to the reference voltage of the OLED.

Provided is a compound including a metal complex having a metal M with a coordination number of four with four coordinating atoms, Z1, Z2, Z3, and Z4, coordinated to the metal M. In the compound, each of Z1, Z2, Z3, and Z4 is independently selected from O, S, Se, N, P, C, Si, or B; at least one of Z1, Z2, Z3, or Z4 is S* or Se*, where S* and Se* represent S or Se, respectively, that form a dative bond with M; and the metal M is selected from Pt, Pd, Cu, Ag, Au, or Zn, Formulations, OLEDs, and consumer products containing the compound are also provided.

In one or more examples, a display apparatus may include a display panel on which sub-pixels are arranged, each of the sub-pixels including an organic light-emitting diode and a driving transistor for driving the organic light-emitting diode, data lines disposed on the display panel and connected to the sub-pixels, gate lines disposed on the display panel and connected to the sub-pixels, sensing lines disposed on the display panel and connected to the sub-pixels, a data driving circuit configured to supply data voltages to the data lines, a gate driving circuit configured to supply gate voltages to the gate lines, a sensing circuit connected to the sensing lines to sense sensing voltages of the sub-pixels, and a controller configured to determine whether at least one of the driving transistor and the organic light-emitting diode is defective based on a sensing voltage sensed by the sensing circuit.

Compound of Formula I,is provided. In Formula I, rings A, B, C, and D are 5- or 6-membered rings; each of X1-X5, X21-X22, and Z1-Z3 is C or N; each of L1, L2, and L3 is selected from a direct bond or a divalent linker; each of a and b is 0 or 1; Y is O, S, Se, or NRY; W is O, S, NRW, C═RW, or CRWRW′; up to 1 of Z1 to Z3 is N; each R, R′, RA, RB, RC, RD, RY, RW, and RW′ is hydrogen or a substituent. Formulations, OLEDs, and consumer products containing the same are also disclosed.

The present disclosure relates to a display device. The display device includes: a first pixel including a first organic light-emitting diode; an initialization voltage generator for generating a first initialization voltage to be supplied to an anode of the first organic light-emitting diode; and a timing controller including a first lookup table recording a plurality of first initialization voltage values ​​corresponding to a plurality of maximum brightnesses, the timing controller being configured to determine a value of the first initialization voltage based on received information related to a target maximum brightness and the first lookup table.

The present disclosure relates to a boron compound applicable to an organic light-emitting diode and an organic light-emitting diode comprising same. More specifically, the present disclosure relates to a boron compound represented by any one of Chemical Formulas A to D and an organic light-emitting diode comprising same, wherein Chemical Formulas A to D are as defined in the description.

This invention concerns a remarkable method of an integration of Quantum Dots in optoelectronic devices in for including embedding quantum dots (metallic, inorganic or colloidal) within different layers of the multilayer structure of the emerging thin film optoelectronic devices such as Organic Photovoltaics - OPVs, Perovskite Photovoltaics - PPVs, Organic Light Emitting Diodes - OLEDs to achieve higher performance and subsequently deploying these improved flexible and lightweight devices in Agriculture notably Greenhouses, Open Field Cultivations, Breeding, as well as notably Glass Buildings, UV Health-care protection. This invention promotes the enhancement of power conversion efficiency of semitransparent OPV panels and desirable properties of optoelectronic devices as well as the enhancement of crop production more than 30%. This phenomenon is attributed to a combination of factors: the shading effect generated by OPV panels and an even bigger enhancement as a result of the incorporation of quantum dots within a nanolayer of the multilayer structure of an optoelectronic device. These quantum dots, acting as additives in solutions, are printed onto a substrate and have the ability to achieve optical engineering and optical tuning by controlling the solar spectrum that penetrates through optoelectronic devices, thus the manipulation of absorption across a range of wavelengths, including far UV, UV, and even less beneficial visible wavelengths, is realized. Consequently, these wavelengths are efficiently converted into more advantageous blue and red wavelengths for agricultural applications, or even in any preferable wavelength of the visible spectrum in applications such as glass buildings.

The invention belongs to the field of OLED (organic light emitting diode) luminescent materials, and particularly relates to an OLED organic small molecular luminescent material with a self-repairing function, which is composed of 90-99.9% by mass of host luminescent molecules A and 0.1-10% by mass of dynamic covalent cross-linking agent B. The mass ratio of the host luminescent molecules A is 90-99.9%, the mass ratio of the dynamic covalent cross-linking agent B is 0.1-10%, and the mass ratio of the host luminescent molecules A to the dynamic covalent cross-linking agent B is 0.1-10%. The structural general formula of the main body light-emitting molecule A is Ar1-L-Ar2. According to the OLED organic small-molecular luminescent material with the self-repairing function, a reversible dynamic cross-linked network is constructed through reasonable proportioning of the host luminescent molecules A and the dynamic covalent cross-linking agent B (the proportion of the host molecules is 90%-99.9%, and the proportion of the cross-linking agent is 0.1%-10%). When the light-emitting layer has defects due to aging, thermal stress or mechanical damage, external stimulation (heating at the temperature of 50 DEG C to 150 DEG C or ultraviolet irradiation at the wavelength of 300 nm to 400 nm) can activate fracture-recombination of dynamic covalent bonds such as disulfide bonds and borate bonds, molecular chains are promoted to be crosslinked again, and the microstructure of the light-emitting layer is repaired.

A display apparatus for a vehicle is disclosed. A display apparatus for a vehicle according to an embodiment of the present disclosure includes: an organic light emitting diode (OLED) panel; a driving controller to output a driving signal; a first temperature detector in a first area of a rear surface of the OLED panel; a second temperature detector in a second area of the rear surface of the OLED panel; and a signal processing device to perform a first degradation compensation mode or a second degradation compensation mode based on a difference between a first temperature and a second temperature, wherein the signal processing device controls a luminance compensation value in the second degradation compensation mode to be greater than a luminance compensation value in the first degradation compensation mode. Accordingly, degradation may be reduced in an adaptive manner based on the temperature of each area of the panel.

The present disclosure relates to a display apparatus, and the display apparatus includes a display panel on which a plurality of sub-pixels are disposed, the plurality of sub-pixels each including an organic light-emitting diode, a base voltage node connected to a cathode electrode of the organic light-emitting diode, a plurality of driving voltage lines disposed on the display panel and configured to supply a driving voltage of the organic light-emitting diode to the plurality of sub-pixels, a controller configured to control a gate driving circuit and a data driving circuit, and a defect detection circuit configured to determine whether a defect occurs in the driving voltage line based on a voltage sensed at the base voltage node, wherein, based on a defect signal output from the defect detection circuit, an output of at least one of the controller, the gate driving circuit, and the data driving circuit is controlled.