404 results about "Charge generation" patented technology

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.

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 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.

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 present disclosure relates to a tandem-type organic light-emitting device comprising a plurality of light-emitting layers and, more particularly, to a tandem-type organic light-emitting device that exhibits low driving voltage, high efficiency, and long lifetime through a combination of an N-type charge generation layer and adjacent layers thereof.

The present application relates to the field of organic electroluminescence devices, and specifically provides a top emission OLED and display panel. The top emission OLED comprises: an anode; a first light emitting unit comprising a first organic light emitting layer; a charge generation layer; a second light emitting unit comprising a second organic light emitting layer; a cathode, the first light emitting unit further comprises an anti-reflection structure between the anode and the first organic light emitting layer, the anti-reflection structure comprises a first sub-layer and a second sub-layer, wherein the first refractive index threshold <= (n2-n1) <= the second refractive index threshold and n1 >= the third refractive index threshold, and the first thickness threshold < t2 <= lambda / (2*n2), n2 is the refractive index of the second sub-layer, n1 is the refractive index of the first sub-layer, t2 is the thickness of the second sub-layer, and lambda is the wavelength of the light emitted by the OLED. The present application can effectively improve the problem of viewing angle decay and improve the efficiency of the OLED device.

One aspect relates to a semiconductor device including a lower electrode, an insulating layer, an organic layer, and an upper electrode disposed in that order. The organic layer has an electric-charge generating layer between two light-emitting layers. In a cross-section, an upper surface of the insulating layer has a groove including a bottom portion, a first steep slope portion and a first gentle slope portion disposed between the bottom portion and the first steep slope portion. A height of the first steep slope portion is less than a length from an upper surface of the lower electrode to a lower surface of the electric-charge generating layer in a region in which the lower electrode is in contact with the organic layer.

A device in a chamber is provided. The device comprises at least one die. The at least one die comprise a first voltage generator, a dielectric layer and a first voltage regulator circuit. The first voltage generator is charged to have a first induced voltage by induced charges generated in response to a first voltage of a first electrode of a chuck in the chamber. The dielectric layer surrounds the first voltage generator to isolate the first voltage generator from the first electrode. The first voltage regulator circuit is coupled to the first voltage generator to receive the first induced voltage and generates a first power supply voltage according to the first induced voltage for a first circuit in the device.

The application provides a display panel, a preparation method thereof and a display device. The display panel comprises a driving substrate, a plurality of anode electrodes, a first functional layer comprising a first light-emitting stack, a second light-emitting stack and a third light-emitting stack, a first cathode electrode arranged on the first light-emitting stack and the second light-emitting stack, a charge generation layer arranged on the third light-emitting stack and the first cathode electrode, a second functional layer comprising a fourth light-emitting stack, the fourth light-emitting stack being arranged on the charge generation layer, a normal projection of the fourth light-emitting stack on the first functional layer covering the first light-emitting stack, the second light-emitting stack and the third light-emitting stack, the fourth light-emitting stack having the same color as the third light-emitting stack, and a second cathode electrode arranged on the second functional layer, a normal projection of the second cathode electrode on the first functional layer being coincident with the third light-emitting stack. The display panel reduces the cost and improves the product yield on the basis of the light-emitting device with the stack series structure.

The invention discloses a full-color OLED device for realizing white balance and a manufacturing method thereof. The device structurally comprises a metal anode, a first hole transport layer, a blue light-emitting layer, a first electron transport layer, a charge generation layer, a second hole transport layer, a green light-emitting layer, a red light-emitting layer, a second electron transport layer, a TCO cathode layer, an optical path regulation and control packaging layer and a blue wave band high-reflectivity packaging layer which are stacked in sequence, a red-green wave band high-reflectivity packaging layer and a water-oxygen isolation packaging layer; according to the invention, the TCO cathode and the wavelength-selective high-reflectivity packaging structure are introduced, so that light emitting loss caused by the SPP effect of the Ag cathode can be avoided; the optical design and the electrical design of the OLED are separated, the design freedom degree is increased, and the repeatability of the OLED device is improved; and due to the high reflectivity of wavelength selection, the reflectivity wave band and the reflectivity value can be freely designed, and the white balance of emergent light of the OLED device is realized.

The application discloses a GIS insulator partial discharge charge on-line detection method and system, and relates to the technical field of charge detection.The method comprises the following steps: according to a GIS simulation model, simulating the electric field distribution of charge generation in the partial discharge process, determining the performance index of the required electric field sensing probe, and preparing the electric field sensing probe; according to an epoxy resin model, obtaining the charge density, the charge distribution range and the electric field signal collected by the electric field sensing probe under different voltage pulses, and constructing a test data set; according to the GIS simulation model, obtaining the electric field signal under different charge densities and different charge distribution radii, and constructing a training data set; training a neural network model according to the training data set, and correcting according to the test data set; and collecting the partial discharge electric field signal by using the electric field sensing probe array arranged on the outer wall of the GIS insulator, and obtaining the charge density and the charge distribution range on the surface of the insulator by using the neural network. Non-invasive and non-contact on-line measurement is realized.

The application discloses a pressure sensor based on friction nanogenerator, which can be deployed in a wearable device for monitoring pulse fluctuation, or deployed in an electronic device with a touch screen for detecting touch action. The sensor comprises two friction layers and at least one electrode layer. The two friction layers are respectively made of materials with different electron loss and gain abilities. The surface of at least one friction layer comprises a multi-stage micro-nano structure for inducing equal and opposite net charges corresponding to the applied pressure on the two friction layers under pressure. The multi-stage micro-nano structure comprises at least two kinds of micro-nano columnar structures with different heights. The electrode layer is used for generating current based on the net charges. The application can make the pressure sensor maintain high sensitivity to large static force through the designed multi-stage structure with different heights, and can expand the measurement range of the pressure sensor, so that the sensor maintains the same or similar sensitivity under various static forces.

The present application discloses a display panel and a display device. The display panel comprises an anode layer, a first light-emitting functional layer, an N-type charge generation layer, a light-emitting composite layer, and a cathode layer. The light-emitting composite layer comprises a plurality of stacked functional layers. The orthographic projection of the N-type charge generation layer on the cathode layer does not exceed the coverage range of the orthographic projection of at least one functional layer in the light-emitting composite layer on the cathode layer.

The invention discloses an organic light emitting diode with a visible-infrared multispectral band free switching function. The organic light emitting diode sequentially comprises an anode, a hole injection / transmission layer, an infrared light emitting unit, a charge generation layer, a visible light emitting unit, an electron injection / transmission layer and a cathode, the charge generation layer sequentially comprises a P-type semiconductor layer, a transparent conductive layer, a buffer layer and an N-type semiconductor layer, the P-type semiconductor layer is arranged adjacent to the visible light emitting unit, and the N-type semiconductor layer is arranged adjacent to the infrared light emitting unit. The infrared light-emitting unit is prepared by thermally activating the delayed fluorescent material, so that the internal quantum efficiency of the organic light-emitting diode is effectively improved. In addition, the charge generation layer with high conductivity is designed to be connected in series with the light-emitting units, so that an organic lighting source with a visible-infrared multispectral band free switching function can be constructed.

The application provides a carbon nanotube composite charge generation layer, a preparation method thereof and application of the carbon nanotube composite charge generation layer in a laminated OLED device. The preparation method comprises the following steps: placing a ferrous oxide loaded carbon nanotube composite material in a solvent to obtain a solution, spraying the solution on a substrate surface, drying to obtain a modified base film; placing the modified base film in a magnetic field with a fixed direction and a fixed frequency to obtain a modified base film with oriented arrangement of carbon nanotubes; and preparing the carbon nanotube composite charge generation layer by using a high-vacuum evaporation method. Compared with the prior art, the carbon nanotube material with regular arrangement is obtained, the axial conductivity of the carbon nanotube material is far higher than the radial conductivity, the traditional evaporation process is used, the CGL is prepared on the carbon nanotube layer with regular arrangement by the thermal evaporation method, and therefore the electrical crosstalk (lateral conductivity) of the CGL is reduced, and the performance of the laminated OLED device is improved.

A light emitting display device including a bank exposing first to fourth light emitting portions on a substrate; first to fourth anodes respectively disposed on one of the first to fourth light emitting portions; first light emitting stacks on the first to fourth anodes; a charge generation layer on the first light emitting stack in the fourth light emitting portion; a second light emitting stack on the charge generation layer in the fourth light emitting portion; and a cathode on the first light emitting stack and the second light emitting stack.

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 an end of the first lower electrode and an end of the second lower electrode. The first element has one or more organic layers between the first lower electrode and the charge generation layer, the insulating layer has a groove between the first lower electrode and the second lower electrode, and an end of at least one organic layer of the organic layers is disposed between the groove and the first element.

The invention discloses a display device and an electronic device including the same. The display device may include first to third light emitting elements corresponding to the first to third emission areas, respectively. Each of the first to third light emitting elements may include: a first electrode; a second electrode facing the first electrode; a first emission unit provided between the first electrode and the second electrode and including a first emission layer; a charge generation layer provided on the first emission unit and including a p-type charge generation layer and an n-type charge generation layer; and a second emission unit provided on the charge generation layer and including a second emission layer. The first emission layer and the second emission layer may each include a first light emitting material including a deuterium atom in at least two selected from among the first to third light emitting elements.

A device is provided. The device comprises a stacked blue light emitting device comprising: a first electrode; a second electrode; a first emissive unit comprising a first emissive layer; a second emissive unit comprising a second emissive layer; and a first charge generation layer; wherein the first emissive unit, the second emissive unit and the first charge generation layer are all disposed between the first electrode and the second electrode; the first emissive unit is disposed over the first electrode; the first charge generation layer is disposed over the first emissive unit; the second emissive unit is disposed over the first charge generation layer; the second electrode is disposed over the second emissive unit; the first emissive unit emits blue light having a peak wavelength in the visible spectrum in the range of 380 nm to 500 nm that is defined as the first peak wavelength; the first emissive unit emits blue light having first CIE 1931 (x, y) colour space chromaticity coordinates of (x1, y1); the second emissive unit emits blue light having a peak wavelength in the visible spectrum in the range of 380 nm to 500 nm that is defined as the second peak wavelength; the second emissive unit emits blue light having a second chromaticity having second CIE 1931 (x, y) colour space chromaticity coordinates of (x2, y2); the second chromaticity is substantially different to the first chromaticity; and the first emissive layer and the second emissive layer comprise organic light emitting material, quantum dot light emitting material and / or perovskite light emitting material.

Light-emitting device with bottom-emission structure, comprising: a substrate; a transistor, comprising: a first insulating layer over the substrate; an oxide semiconductor layer above the first insulating layer; a source electrode, a drain electrode and a gate electrode above the oxide semiconductor layer; and a second insulating layer over the oxide semiconductor layer, the source electrode and the drain electrode; an anode across the transistor; a first light-emitting element configured to emit light through a first color layer, so that blue light is extracted from the light-emitting device to the outside; a second light-emitting element configured to emit light through a second color layer, so that green light is extracted from the light-emitting device to the outside; a third light-emitting element configured to emit light through a third color layer, so that red light is extracted from the light-emitting device to the outside; a fourth light-emitting element, where: one of the source electrodes and the drain electrode is electrically connected to the anode, the anode is configured in such a way that it acts as the first electrode of one of the first to fourth light-emitting elements, the first to fourth light-emitting elements have the same structure comprising a first EL layer and a second EL layer with an intermediate charge-generating layer, The first EL layer contains a fluorescent substance that emits blue light, and the second EL layer contains a phosphorescent substance that emits yellow light.

An emissive display device includes a transistor disposed on a substrate, a first insulating layer on the transistor, a separation line disposed on the first insulating layer, a second insulating layer on the first insulating layer, the second insulating layer including a first opening overlapping the separation line, a first and second pixel electrodes on the second insulating layer at opposite sides of the separation line, a pixel defining layer on the second insulating layer, and an emission member on the first and second pixel electrodes, the pixel defining layer, and the separation line. The pixel defining layer includes a second opening overlapping the separation line. The emission member is separated by the separation line. The emission member includes a first emission unit, a charge generating layer on the first emission unit, and a second emission unit on the charge generating layer.

A light emitting display device can include a plurality of light emitting portions disposed on a substrate and a non-light emitting portion between the light emitting portions; first electrodes respectively disposed at the plurality of light emitting portions, the first electrodes being spaced apart from each other; a first stack, a charge generation layer and a second stack disposed on the first electrodes, the charge generation layer being disposed between the first stack and the second stack; and a second electrode disposed on the second stack. Also, the second electrode is connected to the first charge generation layer through a connection portion at the non-light emitting portion.

The invention provides a display substrate, a preparation method thereof and a display panel, belongs to the technical field of display, and can solve the problems that an existing display product is low in yield, poor in display and the like. The display substrate disclosed by the invention comprises a dielectric substrate, wherein a conductive device is integrated in the dielectric substrate; the planarization layer is arranged on the dielectric substrate, and the side, away from the dielectric substrate, of the planarization layer is a flat surface; a first electrode layer including first electrodes of the plurality of light emitting devices; the charge generation layer includes charge generation units of a plurality of light emitting devices; the display substrate further comprises a first partition opening penetrating through at least part of thickness of the planarization layer, and the first partition opening meets the requirement that the charge generation layer is disconnected to form the charge generation unit. Normal preparation of the first electrode can be ensured, and the yield of the display substrate is improved.

A light-emitting substrate, a display substrate, and a display device. The light-emitting substrate comprises a plurality of light-emitting devices; the plurality of light-emitting devices comprise a first light-emitting device and a second light-emitting device; and the first light-emitting device and the second light-emitting device each comprise a first electrode, a second electrode, a first light-emitting unit, a second light-emitting unit, and a charge generation layer. The first light-emitting unit and the second light-emitting unit are configured to emit light of a same color, and the first light-emitting device and the second light-emitting device are provided adjacent to each other and are configured to emit light of different colors. The distance between the surface of the charge generation layer away from the first electrode and the surface of the first electrode close to the charge generation layer is the top height of the charge generation layer, and the ratio of the top height of the charge generation layer of the first light-emitting device to the top height of the charge generation layer of the second light-emitting device falls within the range of 0.85-1.15. The first light-emitting device and the second light-emitting device may be provided with partition structures having the same height, thereby simplifying the design of the partition structures, and improving the yield rate of light-emitting substrates.

A tension sensing cable for a cable drive mechanism of a robot, in particular a surgical robot, is provided. The tension sensing cable is configured to respond to an axial tensile force applied thereon, wherein a radial pressure applied on the cable has a lower impact on a voltage output of the cable than the axial force. The cable comprises a main conductive filament and a secondary conductive filament, where the main filament and / or the secondary filament are helically wound and configured such that when the main filament and the secondary filament are in contact with each other, charge transfer occurs between two contact surfaces of the main filament and the secondary filament. When an axial tensile force is applied to the cable, a potential difference generated by the charge transferred between the primary filament and the secondary filament varies, where the variation corresponds to the applied axial tensile force.

The present disclosure relates to a novel compound and an organic light-emitting device comprising same, and more particularly, to a novel compound and an organic light-emitting device comprising same, the compound being capable of improving device performance characteristics such as low voltage, high efficiency, and long lifespan, when applied to an organic material layer of an electron transport region, particularly an N-type charge generation layer (N-CGL), an electron transport layer (ETL), or a hole blocking layer (HBL), in an organic light-emitting device.

A display substrate is provided, including: a plurality of pixel units on a base substrate, where at least one pixel unit includes a plurality of light-emitting elements stacked along a third direction, which include a first light-emitting layer, a second light-emitting layer, and a charge generation layer between the first light-emitting layer and the second light-emitting layer; and at least one test component in the test component region, where the at least one test component includes a plurality of test elements arranged in the test component region in an array along first and second directions. The test elements include a first test element and a second test element. The first test element and the first light-emitting layer include a same material, the second test element and the second light-emitting layer include a same material, and the first test element and the second test element are arranged in two rows.

This invention provides an organic electroluminescent device. The organic electroluminescent device comprises a first compound having the structure shown in Formula I and a second compound having the structure shown in Formula II, wherein the first compound is a polysubstituted benzodiazole structure, and the second compound is an amine compound having a benzofuran group, a benzothiophene group, a carbazole group, or a fluorene group. This invention provides that the first and second compounds have better structural matching, better hole injection capability, and excellent charge generation capability. Combining the first and second compounds to prepare the organic electroluminescent device can reduce the device voltage, improve device efficiency, and extend device lifespan.