79 results about "Charge generation" patented technology

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.

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.

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.

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.

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.

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.

The present disclosure relates to an organic light emitting display device comprising a first substrate including a first pixel, the first pixel including first and second regions; a first electrode in the first region and on the first substrate, the first electrode having a first work function value; a second electrode in the second region and on the first substrate, the second electrode having a second work function value smaller than the first work function value; a first organic light emitting layer on the first electrode; a second organic light emitting layer on the second electrode; and a p-type charge generation layer in the first and second regions and on the first and second organic light emitting layers.

The application discloses a kind of round crystal processing with destatic device, belong to round crystal destatic technical field, including outer box and for being used to the processing mechanism of round crystal and carrying out destatic treatment, outer box is also provided with two for sending and sending out transfer mechanism and in-out mechanism of round crystal.The application is when round crystal enters the lower side of upper electrode plate, utilize high voltage power supply and electrify lower electrode sheet, form strong electric field, the electric field is excited by electrostatic induction on the back of round crystal and generates opposite polarity charge, generates uniform electrostatic adsorption force, firmly fixed on the surface of insulating sheet, realizes the lossless, clean fixing of round crystal;The application is set up air guide cabin and inner pole needle in the two sides of upper electrode plate, by applying several thousand volts high voltage generates strong electric field, ionize air and generate a large number of free electrons and positive ion, and form directional moving ion wind under the action of electric field, ion wind is directly blown to the surface of round crystal moving to the lower side of electrode plate, can rapidly, uniformly neutralize static charge on round crystal.

Disclosed are a light-emitting device and a preparation method therefor, and a display device. The light-emitting device includes a first electrode, a first light-emitting unit, one or more charge generation layers, a second light-emitting unit, an electron transport layer and a second electrode, which are sequentially stacked. A charge generation layer is arranged between two light-emitting units, and no hole transport layer is arranged, thereby simplifying the structure of a light-emitting device while ensuring the brightness, and reducing the overall thickness of the light-emitting device.

A display device including a charge generation layer is provided. The display device can include a device substrate. A plurality of pixel regions can be defined in the device substrate. A first light emitting region, a second light emitting region, and a third light emitting region can be defined in each of the pixel regions. Light emitting devices can be disposed on each of the light emitting regions. Each of the light emitting devices can include a first light emitting stack, the charge generation layer, and a second light emitting stack sequentially stacked. A planarization layer can be disposed between the device substrate and the light emitting devices. The planarization layer can include a separation trench disposed between the first light emitting region and the second light emitting region of each of the pixel regions and an opening overlapping the third light emitting region of each of the pixel regions. The charge generation layer can be separated by the separation trench and a thickness difference caused by the opening. Accordingly, in the display device, current leakage due to the charge generation layer can be prevented.

The present application relates to a light-emitting device, a display panel and a display device. The light-emitting device comprises an anode, a cathode, and a first light-emitting unit and a second light-emitting unit which are located between the anode and the cathode, and at least one charge generation layer located between the first light-emitting unit and the second light-emitting unit, the charge generation layer comprising an N-type charge generation sub-layer and a P-type charge generation sub-layer located on a side of the N-type charge generation sub-layer close to the cathode, 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 into the hole transport material, an absolute value of a lowest unoccupied molecular orbital energy level of the second hole injection material being less than that of the first hole injection material.

A display device includes a substrate in which first and second pixel areas respectively emitting first and second light respectively having different emission wavelengths, a first electrode on the substrate to overlap the first and second pixel areas, a hole transport region on the first electrode to overlap the first and second pixel areas, first and second organic layers on the hole transport region to respectively overlap the first and second pixel areas, an electron transport region on the first and second organic layers to overlap the first and second pixel areas, and a second electrode on the electron transport region to overlap the first and second pixel areas. The first organic layer includes first emission layers emitting the first light and a first charge generation layer between the first emission layers, and the second organic layer includes a single second emission layer emitting the second light.

The application discloses a compound and application thereof, and belongs to the technical field of display. The chemical structural formula of the compound is shown in the following: A is O, S, CR1R2; Ar1-Ar3 are each independently selected from one of hydrogen, protium, deuterium, tritium, substituted or unsubstituted C1-C18 alkyl, substituted or unsubstituted C6-C30 aryl, and substituted or unsubstituted C3-C30 heteroaryl; R, R1 and R2 are each independently selected from one of hydrogen, deuterium, substituted or unsubstituted C1-C18 alkyl, substituted or unsubstituted C6-C30 aryl, and substituted or unsubstituted C3-C30 heteroaryl; n represents an integer of 0-7; and the compound is suitable for preparing an electron transport layer or an n-type charge generation layer of an OLED device, so that the efficiency and the service life of the device are improved, and the voltage of the device is reduced.

To provide an organic electroluminescent element that suppresses leakage current generation and has a long lifespan. [Solution] Organic electroluminescent element 1 having one or more light emission bands 5 and one or more charge generation transport bands, wherein one or more charge generation transport bands include a hole transport band 6, and the hole transport band 6 includes a first organic layer 61 containing a first compound and a second compound, and a second organic layer 62 containing a third compound, wherein the first compound and the second compound are different compounds, the first compound is a compound represented by formula (AC1), the third compound is a compound represented by formula (B1), and the third compound has one or more deuterium atoms. JPEG2026111349000375.jpg53170

A photoelectric conversion device includes a pixel including an amplifier transistor generating a signal according to charge generated in a photoelectric conversion unit and a select transistor controlling an output of the signal, and an output line outputting the signal from the pixel. The photoelectric conversion unit includes a first semiconductor region for accumulating charge, the select transistor includes a second semiconductor region to which the output line is connected, and the pixel further includes a third semiconductor region being capable of discharging charge. The second semiconductor region is adjacent to the first semiconductor region via a first element isolation structure, and is adjacent to the third semiconductor region via a second element isolation structure. A shortest distance between the first and second semiconductor regions via the first element isolation structure is greater than a shortest distance between the second and third semiconductor regions via the second element isolation structure.

The invention provides a pixel arrangement structure, a display panel, a driving method of the display panel, a display device and a mask group. The pixel arrangement structure comprises a plurality of basic pixel units which are arranged in an array mode, each basic pixel unit comprises a first sub-pixel, a second sub-pixel, a third sub-pixel and a fourth sub-pixel, and the first sub-pixel, the second sub-pixel and the third sub-pixel are sub-pixels of different colors. The third sub-pixel and the fourth sub-pixel are sub-pixels with the same color; one of the third sub-pixel and the fourth sub-pixel comprises a single light-emitting layer, the other one of the third sub-pixel and the fourth sub-pixel comprises at least two sub-light-emitting layers which are arranged in a laminated mode, and a charge generation layer is arranged between every two adjacent sub-light-emitting layers. According to the pixel arrangement structure, the problem of color cast of a white picture under low brightness after a reliability test is solved, and meanwhile, the problem of a dark field caused by extinguishment of some pixels can be eliminated, so that the display effect of the display panel is improved, and the yield and the product competitiveness of the display panel are improved.

A display apparatus can include a tandem light-emitting element having first and second light-emitting elements connected in series, and a reset transistor configured to apply a reset voltage to a node between the first and second light-emitting elements corresponding to a charge generation layer of the tandem light-emitting element. By resetting the charge generation layer of the tandem light-emitting element, it is possible to prevent or minimize voltage fluctuation of the charge generation layer.

There is provided an electrophotographic photosensitive member, a process cartridge, and an image forming apparatus with superior electrical characteristics. The electrophotographic photosensitive member includes a conductive base and a photosensitive layer. The photosensitive layer is provided on the conductive base. The photosensitive layer contains a base material, a charge generation material, a dispersing aid, a hole transport agent, and an electron transport agent. The base material is a polyarylate resin having repeating units represented by the following formula (1), formula (2), formula (3), and formula (4), in which a content ratio of the repeating units represented by the formula (3) with respect to a total number of the repeating units represented by the formula (1) and formula (3) is greater than 0% and less than 20%. The charge generation material is titanyl phthalocyanine. The dispersion aid includes a compound represented by the following formula (5) or formula (6). The hole transport agent includes a compound represented by the following formula (7) or formula (8).

The embodiment of the application belongs to the technical field of display, and relates to an ink, a light-emitting device and application. The ink provided in the application comprises an N-type self-doped material having a carrier transport function. A charge generation unit prepared from the N-type self-doped material can efficiently generate charges and separate the charges, so that the charges are prevented from accumulating at an interface, thereby improving the carrier transport efficiency, and further improving the light-emitting performance and stability of the light-emitting device.

A wearable triboelectric sensor has a first layer with surface charges at the same polarity and a second layer with both positive and negative surface charges. The two layers are held together by electrostatic forces generated by surface charges of opposite polarity. Electrostatic forces generated by surface charges of the same polarity force the layers away from each other causing gaps between the layers. When the sensor is placed on the skin of a user, bodily movements induce compressive and tensile stresses that force the layers toward and away from each other causing the gaps to close and open. Contact and separation of the two layers in the areas of the gaps induce a triboelectric voltage that can be measured to determine an extent of the bodily movement. Thus, the bodily movement can be accurately detected with a relatively small, inexpensive sensor that does not require an active power source.

To provide an organic electroluminescent element that suppresses leakage current generation and has a long lifespan. [Solution] An organic electroluminescent element 101 having an anode 3, a cathode 4, one or more light-emitting bands 5, and one or more charge generation transport bands, wherein the light-emitting layer 51 contains a compound represented by formula (2) having at least one deuterium atom as a first host material, and at least one of the charge generation transport bands includes a first organic layer (e.g., a hole injection layer 61), and the first organic layer contains a compound represented by formula (AC1). TIFF2026111279000363.tif66170

This application provides a display panel, a display screen, and an electronic device, relating to the field of electronic device technology. The display panel includes a pixel definition layer and a light-emitting layer. An opening is formed in the pixel definition layer, and a support is disposed on the surface of the pixel definition layer. A charge-generating layer and a cathode layer are stacked on the surface of the support, the surface of the pixel definition layer, and within the opening. The light-emitting layer is disposed within the opening. The display panel has an isolation groove surrounding the outside of the support. The display panel has an isolation region located inside the isolation groove and a functional region located outside the isolation groove. The support is located in the isolation region, and the light-emitting layer is located in the functional region. The isolation groove penetrates at least one of the cathode layer and the charge-generating layer along the thickness direction of the display panel, causing at least one of the cathode layer and the charge-generating layer to be partially disconnected on both sides of the isolation groove. Thus, the Tandem OLED display panel is less prone to problems such as low brightness and bright spots due to damage to the structural layers on the surface of the support.

The present invention provides a novel compound which can be applied to at least one of an electron injection layer (EIL), an electron transport layer (ETL), a hole blocking layer (HBL), a layer which simultaneously injects and transports electrons, and a charge generation layer (CGL), and an organic light-emitting device comprising the novel compound.

In an image forming apparatus using a non-magnetic, single-component pulverized toner, an electrophotographic photoreceptor capable of suppressing image defects caused by fogging is provided. [Solution] The electrophotographic photoreceptor of the present invention is used in an image forming apparatus that uses a non-magnetic, single-component pulverized toner. The electrophotographic photoreceptor comprises an undercoat layer disposed on a conductive substrate, and a photosensitive layer in which a charge generation layer and a charge transport layer are sequentially laminated on the undercoat layer. The undercoat layer contains a thermosetting resin including an alkyd resin and a melamine resin, and titanium oxide particles. The charge transport layer contains a binder resin including a polycarbonate resin or a polyarylate resin, and a hole transporter containing a compound represented by general formula (1).

To provide an electrophotographic photoreceptor that has excellent environmental stability in its electrical properties and whose photosensitive layer is resistant to peeling. [Solution] The electrophotographic photoreceptor comprises a conductive substrate and a photoreceptor layer disposed on the conductive substrate, the photoreceptor having a charge generating layer and a charge transport layer, wherein the charge transport layer contains a charge transport material and a polyarylate resin having at least one dicarboxylic acid unit selected from the group consisting of a dicarboxylic acid unit (A2) represented by formula (A2), a dicarboxylic acid unit (A3) represented by formula (A3), a dicarboxylic acid unit (A4) represented by formula (A4), and a dicarboxylic acid unit (A5) represented by formula (A5), and a diol unit represented by formula (B), and the charge generating layer contains a butanediol adduct of titanylphthalocyanine as a charge generating material.

This invention relates to a bandgap reference source curvature compensation system and control method, which discloses a temperature-adaptive scaling architecture: generating a voltage V complementary to the absolute temperature through a bandgap core circuit. CTAT and voltage V that is proportional to absolute temperature PTAT Two reference voltages; a dynamic scaling factor α(T) that varies linearly with temperature is constructed using a duty cycle resistor unit, such that α(T)·V PTAT This forms a secondary compensation term with no zero-point offset; the duty cycle is determined by the ramp voltage (from the reference voltage V). BG (Drive charging generation) and V PTAT A reference voltage is generated to ensure that the duty cycle D is proportional to the temperature T; and this is achieved through an independently adjustable resistor R. S and R R The primary and secondary temperature coefficients of the compensation term are adjusted separately, and the two have a chip-level linear correlation, supporting single-temperature point calibration. This solution achieves low-power, high-precision, and easily mass-producible curvature compensation.

The invention relates to the technical field of display, in particular to a fused ring compound and application thereof. The fused ring compound provided by the invention has a structure as shown in a formula (1), a specific mother nucleus structure is formed through phenanthroline combination, and a specific substituent group is limited, so that the obtained fused ring compound can be used for an n-type charge generation layer, an electron transport layer or a hole blocking layer and can be better matched with other functional materials of an organic electroluminescent device; therefore, the organic electroluminescent device of the organic compound has lower driving voltage, higher luminous efficiency and longer service life.

Providing an electrophotographic photoreceptor with reduced image density unevenness. 【Solution means】It includes a conductive substrate, a charge generation layer disposed on the conductive substrate, and a charge transport layer disposed on the charge generation layer. The charge transport layer contains a phenol compound, a polyarylate resin, a polycarbonate resin, and a charge transport material, and the vector distance DIS HT (J / cm 3 ) 1 / 2 between the HSP value of the charge transport material and the HSP value of the polyarylate resin, and the vector distance DIS PC (J / cm 3 ) 1 / 2 calculated based on the Hansen solubility parameter satisfy the following formulas (1) and (2) respectively. An electrophotographic photoreceptor. Formula (1): DIS HT ≦3.9 Formula (2): 9.2≦DIS PC <12.0