1045 results about "Charge generation" patented technology

The present invention relates to a tandem organic light-emitting device comprising a plurality of light-emitting layers and, more specifically, to an organic light-emitting device comprising a novel charge generation layer (CGL). The CGL according to the present invention has a first compound having 4,5-diazaspirobifluorene as the core thereof, which is applied as an electron transport material of an N-type CGL. In addition, a second compound having at least one tertiary amine as the core thereof is applied as a hole transport material of a P-type CGL, and the combination of the first compound and the second compound lowers the driving voltage of the device and further improves the efficiency and lifespan thereof. Furthermore, the organic light-emitting device of the present invention can achieve further improved device performance through a CGL comprising the first compound, lithium or ytterbium, the second compound and a third compound at the same time.

The invention relates to a light-emitting device, a display panel and a display device. The light-emitting device comprises an anode, a cathode, a first light-emitting unit and a second light-emitting unit, wherein the first light-emitting unit and the second light-emitting unit are located between the anode and the cathode; the light-emitting device further comprises at least one charge generation layer, the charge generation layer is located between the first light-emitting unit and the second light-emitting unit, the charge generation layer comprises a P-type charge generation sub-layer and an N-type charge generation sub-layer, and the P-type charge generation sub-layer is located on the side closer to the cathode than the N-type charge generation sub-layer. Wherein the P-type charge generation sub-layer comprises a hole transport material, and a first hole injection material and a second hole injection material which are doped in the hole transport material, and the absolute value of the lowest unoccupied molecular orbital energy level of the second hole injection material is smaller than the absolute value of the lowest unoccupied molecular orbital energy level of the first hole injection material. The driving voltage of the laminated light-emitting device can be reduced, the light-emitting efficiency is improved, transverse electric leakage is improved, and the stability of the device is improved.

The present disclosure provides a display substrate and a display device, which belong to the field of display technology and are intended to improve the light-emitting performance of the display substrate. The display substrate comprises: a substrate, on which a plurality of sub-pixels are arranged, and the sub-pixels comprise: a first electrode, a first light-emitting layer, a charge generation layer, a second light-emitting layer, an electron transport layer, and a second electrode; a first distance exists between a surface of the second light-emitting layer close to the charge generation layer and a surface of the electron transport layer close to the second electrode, a second distance exists between a surface of the first electrode close to the first light-emitting layer and a surface of the first light-emitting layer facing away from the charge generation layer, and a third distance exists between a surface of the first light-emitting layer facing away from the charge generation layer and a surface of the second light-emitting layer close to the charge generation layer; an absolute value of a difference between the third distance and the first distance and a ratio between an absolute value of a difference between the third distance and the second distance are within a first preset range.

A light-emitting device and an electronic apparatus including the same are provided. The light-emitting device includes: a first electrode; a second electrode facing the first electrode; m emission units stacked between the first electrode and the second electrode and including an emission layer; and m−1 charge generation layers each between two neighboring emission units from among the m emission units, wherein m is an integer of 2 or more, at least one of the m emission units includes an inorganic mixed layer between the first electrode and the emission layer, and the inorganic mixed layer includes an inorganic insulating material and an inorganic semiconductor material.

The present invention relates to a novel compound and an organic light-emitting device comprising same. More particularly, the present invention relates to: a novel compound which is represented by chemical formula 1 and, by having 4,5-diazaspirobifluorene as a core, can be applied to a host of a charge generation layer (CGL) within a tandem device, particularly, an n-type charge generation layer (nCGL); and a tandem-type organic light-emitting device comprising same, whereby low-voltage, high-efficiency, and long lifespan can be implemented.

The invention belongs to the technical field of organic electroluminescence, and particularly relates to a benzophenanthrene derivative and an organic electroluminescence element containing the benzophenanthrene derivative. The benzophenanthrene derivative has a structure # imgabs0 # as shown in a formula (1) or a formula (2), not only can be used as a high-performance charge generation layer material, but also can be used for one or more layers of single-layer or laminated devices such as an electron transport layer and a hole blocking layer, and can prolong the service life of an organic electroluminescent element when being applied to the organic electroluminescent element.

The present invention relates to a novel compound and an organic light-emitting element comprising same and, more specifically, to: a novel compound which is represented by chemical formula 1 and has 4,5-diazaspirobifluorene as a central core and can thus be applied to a charge generation layer (CGL) in a tandem element and particularly, to a host of an n-type charge generation layer (nCGL); and a tandem organic light-emitting element comprising same, and can achieve a low voltage, high efficiency, and a long lifespan.

The application relates to the technical field of display panels, and discloses a display panel, a display screen and electronic equipment. The CGL of the display panel comprises N-CGL, i-CGL and P-CGL which are stacked in sequence. The LUMO energy level of the organic material corresponding to the i-CGL is less than or equal to -3.5 eV, and the work function of the inorganic material corresponding to the i-CGL is greater than or equal to 3.5 eV. In particular, the Fermi energy level of the i-CGL is lower than that of the P-CGL host material, and the thickness of the i-CGL can be any value less than or equal to 15 nm (especially less than 5 nm). In this case, the charge generation capability of the N-CGL, the i-CGL and the P-CGL in the direction parallel to the thickness of the CGL is improved, the sheet resistance in the direction perpendicular to the thickness of the CGL is greater than 1 GΩ / Dia, the sub-pixel can realize high-efficiency and low-power-consumption light emission, the voltage value obtained by voltage division from the driving voltage of another sub-pixel is small, and the crosstalk between the sub-pixels is reduced or even eliminated.

The invention provides a display substrate and a display device, belongs to the technical field of display, and aims to improve the light emitting performance of the display substrate, the display substrate comprises a substrate, the substrate is provided with a plurality of sub-pixels, and each sub-pixel comprises a first electrode, a first light emitting layer, a charge generation layer, a second light emitting layer, an electron transport layer and a second electrode; a first distance is formed between the surface of one side, close to the charge generation layer, of the second light-emitting layer and the surface of one side, close to the second electrode, of the electron transport layer, and a second distance is formed between the surface of one side, close to the first light-emitting layer, of the first electrode and the surface of one side, away from the charge generation layer, of the first light-emitting layer; a third distance is formed between the surface of one side, deviating from the charge generation layer, of the first light-emitting layer and the surface of one side, close to the charge generation layer, of the second light-emitting layer; the ratio of the absolute value of the difference between the third distance and the first distance to the absolute value of the difference between the third distance and the second distance is within a first preset range.

The present invention relates to a novel compound and an organic light-emitting device comprising same. More specifically, the present invention relates to: a novel compound which is represented by chemical formula 1, has 4,5-diazaspirobifluorene as a core, and thus can be applied as a host of a charge generation layer (CGL), particularly an N-type charge generation layer (nCGL), in a tandem device; and a tandem-type organic light-emitting device comprising same, and may exhibit low-voltage, high-efficiency, and long-life characteristics.

The present invention relates to a novel compound and an organic light emitting device comprising same and, more specifically, to a novel compound and an organic light emitting device comprising same, wherein the novel compound is represented by chemical formula 1, and has two diazaspirobifluorenes as a core and thus is applicable to a host for a charge generation layer (CGL), especially, an N-type charge generation layer (nCGL), in a tandem device, so that the device can achieve low-driving voltage, high efficiency, and long lifespan.

Discussed is a display panel including a substrate, a circuit layer disposed on the substrate, and a light emitting element layer disposed on the circuit layer and electrically connected to a pixel circuit of the circuit layer. The light emitting element layer includes a first electrode and a second electrode electrically connected to the pixel circuit, a first light emitting layer, a charge generating layer, and a second light emitting layer stacked on the first electrode, and a third electrode disposed on the second light emitting layer. The second electrode can supply a voltage to the charge generation layer that is different from those supplied to the first electrode and the third electrode.

Embodiments provide a light emitting element that includes a first electrode, a first light emitting unit disposed on the first electrode, a charge generation unit disposed on the first light emitting unit, a second light emitting unit disposed on the charge generation unit, and a second electrode disposed on the second light emitting unit. The first light emitting unit includes a first hole transport region disposed on the first electrode, a first emission layer disposed on the first hole transport region, and a first electron transport region disposed on the first emission layer. The charge generation unit includes an n-type charge generation layer disposed on the first light emitting unit, and a p-type charge generation layer disposed on the n-type charge generation layer. At least one of the p-type charge generation layer and the first hole transport region each independently includes a tertiary amine compound including a cycloalkyl moiety.

The present invention relates to a novel compound and an organic light emitting device comprising same and, more specifically, to a novel compound and a tandem-type organic light emitting device comprising same, wherein the novel compound is represented by chemical formula 1, and has a diazaspirobifluorene as a core and thus is applicable to a host for a charge generation layer (CGL), especially, an N-type charge generation layer (nCGL), in a tandem device, so that the device can achieve low-driving voltage, high efficiency, and long lifespan.

The embodiment of the invention belongs to the technical field of display, and relates to ink and application thereof. The ink comprises a conductive polymer containing a cross-linking group, an organic matter containing a thiol group and a solvent, and the thiol group is configured to be capable of performing a cross-linking reaction with the cross-linking group. The thin film prepared by adopting the ink is compact, and can inhibit the damage of a hole function layer to an electronic function layer, thereby obtaining better charge generation and separation capability and better device performance.

The present invention relates to a charge generation layer comprising a compound of formula (I). The invention further relates to organic electronic devices and display devices comprising the charge generation layer as well as compounds of formula (I).

The invention belongs to the technical field of photoelectric materials, and relates to a nitrogen-containing heterocyclic compound and an organic electroluminescent element containing the nitrogen-containing heterocyclic compound. The compound has a structure represented by formula (1): wherein L is selected from a single bond, a substituted or unsubstituted C6-C60 arylene group, and a substituted or unsubstituted C3-C60 heteroarylene group, o is an integer from 1 to 3, and when o is 2 or greater, L are the same as or different from each other. The organic electroluminescent element prepared from the compound has higher current efficiency and longer service life, and can be used as an N-type charge generation layer material for preparing the organic electroluminescent element.

A display panel includes: a driving substrate; the anode layer is arranged on the driving substrate and comprises a plurality of anodes; the isolation structure layer is arranged on the driving substrate, the isolation structure layer is provided with a plurality of first openings, and one first opening is overlapped with one anode; a plurality of laminated structures, wherein one laminated structure is at least partially located in one first opening; the laminated structure comprises a first light-emitting layer, a charge generation layer, a second light-emitting layer and a cathode layer which are laminated in the direction away from the driving substrate; the insulation structure is arranged between the edge of the laminated structure and the conductive structure adjacent to the laminated structure, and the conductive structure comprises the isolation structure layer and / or the laminated structure adjacent to the laminated structure.

The invention relates to a charging method of an electrostatic collection board, which comprises the following steps that the electrostatic collection board comprises an inner layer board and an outer layer board, the inner layer board and the outer layer board are both metal plates, the inner layer board and the outer layer board form a capacitor, the outer layer board is electrically connected with a relay, the relay is respectively connected with a + / -1000V charging circuit, the outer layer board is provided with a conductive carrier, and the conductive carrier is connected with the outer layer board. The conductive carrier is used for collecting electrostatic charges; the inner layer plate is electrically connected with the active detection circuit; the outer layer plate is charged through the charging circuit, and the on-off of a circuit between the charging circuit and the outer layer plate is switched through the relay; meanwhile, induced charges are generated on the inner layer plate, induced voltage is generated, and the induced voltage is actual voltage. According to the scheme that the outer layer plate of the electrostatic collection plate is charged and the active detection circuit is connected to the inner layer plate, the charging voltage on the outer layer plate can be more accurate, the detection result of the decay time can be more accurate, and the collected static electricity can be used for charging equipment or providing electrostatic protection.

The invention belongs to the technical field of luminescent materials, and discloses a heterocyclic compound and an organic electroluminescent device. The structural general formula of the heterocyclic compound is as shown in a formula (1): # imgabs0 # formula (1). The heterocyclic compound provided by the invention has the advantages of low driving voltage, high luminous efficiency, long device life and the like, and can be used as an electron transport material, a hole blocking layer material and an N-type charge generation layer material in OLED luminescent devices.

A light emitting display apparatus in which a charge generating layer is separated between pixels, and a method using the same are discussed. The light emitting display apparatus can include a first anode and a second anode provided on a substrate, a bank provided on the first anode and the second anode and including at least one opening portion at which the first anode and the second anode are exposed, a first light emitting unit including a first main light emitting unit provided on the first anode, a first charge generating layer provided in an upper surface of the first main light emitting unit and in an upper surface of a bank exposed between the first anode and the second anode, an additional light emitting layer covering the first charge generating layer, and a cathode covering the additional light emitting layer.

The invention discloses a shipborne portable wave power generation component which comprises a sea-snake-shaped floating shell, a closed cabin is arranged in the sea-snake-shaped floating shell, an air gap is formed between the closed cabin and the sea-snake-shaped floating shell, and the closed cabin is connected with the bottom of the sea-snake-shaped floating shell through an interference spring. A friction nanometer generator is installed in a closed cabin, a main body is of a stacked structure and sequentially comprises a friction film, an induction electrode layer and a power generation electrode substrate from top to bottom, a polytetrafluoroethylene ball and a limiting cover are arranged on the upper surface of the main body, and elastic films are arranged at the two ends of the limiting cover; when the power generation component floats under the action of waves, the polytetrafluoroethylene balls roll on the friction film to generate friction, so that charges are transferred, inductive charges are generated on the inductive electrode layer, and the inductive charges are led out through an external circuit to generate alternating current. The invention further discloses application of the power generation component. The device is good in durability, high in output power, simple in structure, low in manufacturing cost and convenient to carry.

An organic light-emitting element includes a first element having, on a substrate, a first lower electrode, a first light-emitting layer, a charge generation layer, a second light-emitting layer, and an upper electrode in this order; a second element having, on the substrate, a second lower electrode, a third light-emitting layer, the charge generation layer, a fourth light-emitting layer, and the upper electrode in this order;and an insulating layer covering one end of the first lower electrode and one end of the second lower electrode, wherein the first element has one or more organic layers between the first lower electrode and the charge generation layer, the insulating layer has a notch between the first lower electrode and the second lower electrode, and one end of at least one organic layer of the organic layers is disposed between the notch and the first element;

An organic light emitting diode is provided, the organic light emitting diode including: an anode; a first light emitting unit on the anode; the charge generation unit is located on the side, away from the anode, of the first light emitting unit, and the charge generation unit contains a metal elementary substance doping agent; the second light-emitting unit is positioned on one side, far away from the anode, of the charge generation unit; the cathode is positioned on one side, far away from the anode, of the second light-emitting unit; wherein an interface function layer is further arranged between the charge generation unit and the first light-emitting unit, the material of the interface function layer comprises an auxiliary electron transport material, and the auxiliary electron transport material has the capability of forming coordinate bonds with metal ions from the metal elementary substance dopant.

An organic electroluminescent material and device are disclosed. The organic electroluminescent material is a novel compound having a benzodithiophene or a similar structure thereof, and can be used as a charge transport layer, a hole injection layer, a charge generation layer, etc. in an electroluminescent device. Compared with existing materials, these novel compounds can provide excellent device performance, such as further improving the voltage, efficiency and / or life of OLED.

The invention discloses a method for predicting electrostatic potential in a storage tank in oil collection operation of a storage tank, and the method comprises the following steps: initializing and constructing a knowledge respectively establishing a multipath leakage equivalent circuit model library for a fixed roof tank and an inner floating roof tank, the initial fitting impulse current calculation coefficient range, the optimization constraint condition and the conductivity-temperature relation function library are stored; real-time prediction and monitoring: acquiring multi-dimensional data in real time, preprocessing, dynamically calibrating charge generation items, and calculating charge balance by combining a multi-path leakage model and capacitance correction; meanwhile, a high-frequency flow meter is used for detecting the sudden change of the flow speed to trigger an LSTM transient compensation model to predict the transient electrostatic potential variable quantity, and the transient electrostatic potential variable quantity is superposed on a physical model predicted value result to obtain a final electrostatic potential predicted value; dynamic risk assessment and early warning: triggering different levels of early warning according to an assessment result; and deep analysis of abnormal working conditions: when the abnormal working conditions occur, automatically starting local CFD micro-simulation driven by edge calculation to verify local charge aggregation and electric field distortion conditions.

The invention discloses a local electric field measuring method and device based on a field grinding type high-voltage direct-current electric field measuring instrument, which can reduce the size of the instrument, reduce the distortion interference of the instrument to an electric field, accurately measure the intensity of a local direct-current electric field in a small area range, and accurately measure the local direct-current electric field according to the actual size of the measured area range. The specific number of shielding sensors is dynamically adjusted, so that accurate measurement of a specific target area is accurately achieved, when the shielding sensors are used for measuring a direct-current electric field, due to the fact that a metal plug board has the physical characteristic of shielding charges, when the metal plug board shields the sensors, generation of inductive charges is reduced, and the electric field cannot be effectively measured; the sensor which is not shielded by the metal plugboard accurately measures and records the charge induced by the surface of the sensor in detail according to the field grinding principle to obtain a measured value, finally, the calibration coefficient is combined, accurate measurement of the local electric field based on the field grinding type high-voltage direct-current electric field measuring instrument sold in the market is achieved, and the method can be widely applied to the field of high-voltage direct-current electric field measurement.

A display apparatus including a pixel electrode disposed on a substrate, an opposite electrode disposed to face the pixel electrode, a first emission layer and a second emission layer disposed on the first emission layer and overlapping each other between the pixel electrode and the opposite electrode, and a charge generation layer disposed between the first emission layer and the second emission layer, in which the charge generation layer includes an n-type charge generation layer, a p-type charge generation layer, and a metal interlayer disposed between the n-type charge generation layer and the p-type charge generation layer, and the metal interlayer includes metal having a work function of about −6.0 eV to about −3.5 eV.

The invention discloses a display panel, a display module and a display device, the display panel comprises a substrate and a multi-color light-emitting device arranged on the substrate, and the light-emitting device comprises a first electrode layer, a first stacking layer, a charge generation layer, a second stacking layer and a second electrode layer; the second stacking layer comprises a red light emitting layer and a green light emitting layer which are adjacent to each other, and the green light emitting layer is located on the side, close to the second electrode layer, of the red light emitting layer; wherein a first distance is formed between one side, close to the green light emitting layer, of the red light emitting layer and one side, close to the electron charge generating layer, of the hole charge generating layer, a second distance is formed between one side, close to the red light emitting layer, of the green light emitting layer and one side, close to the green light emitting layer, of the second electrode layer, and the first distance is smaller than the second distance; the highest occupied molecular orbital energy level of the preparation material of the second hole blocking layer is 6.0 eV to 6.3 eV, and the lowest unoccupied molecular orbital energy level of the preparation material of the second hole blocking layer is 2.4 eV to 2.8 eV.