118results about How to "Reduce the driving voltage" patented technology

The invention provides an organic compound, a preparation method thereof and an organic electroluminescent device, and belongs to the technical field of luminescent materials, and the organic compound has a structure as shown in a general formula I. The organic compound is used as a luminescent auxiliary material, can effectively improve the luminescent efficiency and stability of the organic electroluminescent device, and has good application prospects. The service life is prolonged, the driving voltage is reduced, and the device is endowed with more excellent comprehensive performance.

The utility model discloses a kind of dielectric fiber driven grippers, including mounting base and the assembly on the mounting base of several clamping jaw mechanisms, all the clamping jaw mechanisms are distributed along circumference, to realize the automatic centring of object and catch;Each the clamping jaw mechanism includes hingedly connected first clamping jaw and second clamping jaw, and the first dielectric fiber driver for controlling the centripetal or centrifugal motion of the first clamping jaw is connected between the first clamping jaw and the second clamping jaw;The second clamping jaw is assembled on the mounting base.The utility model successfully provides a kind of gripper solution with low driving voltage, simple structure, light weight, high reliability and good grasping adaptability by combining low-voltage dielectric fiber driver with optimized design rigid clamping jaw mechanism, and it has excellent comprehensive performance and good application value.

The present application provides a heterocyclic compound represented by formula 1, an organic light emitting element including the same, and a composition for forming an organic layer.

This invention provides a carbazole compound, an organic electroluminescent device, and a display device, relating to the field of organic optoelectronic display technology. Through structural design of the carbazole compound, this invention yields a carbazole compound with excellent performance. The organic electroluminescent device prepared using this compound as the host material for the light-emitting layer exhibits low driving voltage and high current efficiency.

The application relates to the technical field of organic light-emitting display, and discloses a cyano-substituted aryl ring-connected triazine compound and application thereof. The cyano-substituted aryl ring-connected triazine compound has a structure as shown in formula (I), the compound provided by the application has high bond energy between atoms, good thermal stability, is conducive to solid-state stacking between molecules, is conducive to injection and migration of excitons, can effectively reduce the driving voltage of an organic electroluminescent device when used as an electron transport material, improves the light-emitting efficiency of the organic electroluminescent device, and prolongs the service life of the organic electroluminescent device. Meanwhile, the cyano substitution can adjust the energy level of the compound, the HOMO and LUMO energy levels are deepened, the compound is more matched with adjacent layers, and the device voltage is reduced. The application further provides an organic electroluminescent device and a display device containing the compound of formula (I).

The present specification relates to compounds of Chemical Formula 1, coating compositions comprising the compounds, organic light emitting devices using the coating compositions, and methods of manufacturing the same.

The invention provides a liquid crystal compound containing a polyfluoro substituent group, a composition and application of the liquid crystal compound. The liquid crystal compound disclosed by the invention has a structure as shown in a formula I, and has relatively high negative dielectric anisotropy, good liquid crystal intersolubility and relatively low rotary viscosity. Formula I

The present disclosure relates to a compound of Chemical Formula 1, a coating composition including the same, and an organic light emitting device including the same.

This invention relates to a heterocyclic compound represented by chemical formula 1 and an organic light-emitting element comprising the same.

The present disclosure provides a piezoelectric self-feedback excitation type micro electric field sensor, an electric field detection method and a sensor, and is applied to the technical field of electric field sensors. The piezoelectric self-feedback excitation type micro electric field sensor comprises: a substrate for supporting a vibration pickup reference structure, a piezoelectric driving structure, a mutual shielding electric field sensing structure and an elastic beam; the piezoelectric driving structure is used for deforming the piezoelectric driving structure to make the elastic beam vibrate when a driving voltage is applied to the piezoelectric driving structure; the mutual shielding electric field sensing structure is used for outputting a differential form of a sensing current signal in response to the vibration of the elastic beam, so as to suppress common mode noise and detect the amplitude strength of the electric field to be measured; the vibration pickup reference structure is used for outputting a reference current signal in response to the vibration of the elastic beam, so as to adjust the size of the driving voltage, so that the output sensitivity of the piezoelectric self-feedback excitation type micro electric field sensor is a predetermined value.

This invention provides a fused heterocyclic compound and its organic electroluminescent device, specifically relating to the field of organic electroluminescent materials technology. The fused heterocyclic compound provided by this invention possesses excellent electron transport capabilities, suitable HOMO and LUMO energy levels, and a high triplet energy level, which can reduce the electron transport barrier and improve the balance of electron and hole transport. Simultaneously, it can effectively confine holes within the luminescent layer, increasing the probability of effective exciton recombination, thereby reducing the driving voltage, improving luminous efficiency, and extending device lifetime. Furthermore, this fused heterocyclic compound exhibits strong rigidity and a high glass transition temperature, making it less prone to crystallization and aggregation during vapor deposition, thus possessing good film-forming properties and thermal stability. This improves the stability of organic electroluminescent devices and extends the lifespan of electronic components.

The present application provides an organic material composition and its application, the organic material composition includes the fused heterocyclic compound containing quinoline structure and hole transport type compound, the fused heterocyclic compound containing quinoline structure has the structure as shown in formula (1), the hole transport type compound has the structure as shown in formula (2).The composition of the present application makes the organic electroluminescent device have lower driving voltage (3.85 V or less), higher current efficiency (25 Cd / A or more) and longer life (267 h or more).

The application provides a composition containing an indolocarbazole compound, an intermediate and an organic electroluminescent device. The composition contains at least one first compound and at least one second compound; the first compound is obtained by fusing a group shown in formula I-A with any two adjacent carbon atoms on ring A in a group shown in formula I; and the second compound is selected from any one of compounds shown in formulae II-1, II-2 and II-3. The composition provided by the application can be used as a light-emitting layer host material to prepare an organic electroluminescent device, and the prepared organic electroluminescent device has a lower driving voltage, a higher current efficiency and a longer service life.

The application provides a vertical resonant MEMS electric field sensor based on GIS-SOI-GOS, which is composed of GIS layer, SOI layer and GOS layer. The GIS layer comprises an upper driving electrode, an insulating ring, conductive silicon, a plurality of through holes and a groove on a glass layer, and the upper driving electrode is insulated from the conductive silicon through the insulating ring. The SOI layer is composed of a device layer, a buried oxygen layer and a substrate layer, the device layer is provided with a lower driving electrode, a shielding electrode, an induction electrode, an elastic beam and an anchor point, and the buried oxygen layer and the substrate layer are etched to have a hollow window, which together with the groove on the glass layer below the GIS provides a vertical vibration space for a movable structure. The GOS layer comprises an electric field induction cover plate and a glass layer provided with a window, and is used to establish an electric field induction channel. The application realizes integrated wafer-level preparation of a sensitive structure and vacuum packaging of the vertical resonant MEMS electric field sensor, and has the characteristics of high electric field induction efficiency, high quality factor, low driving voltage and the like.

The application provides a compound of formula (I), the bond energy between atoms is high, the compound has good thermal stability, and the solid-state stacking between molecules is favorable, and the energy level between adjacent layers is suitable, which is favorable for the injection and migration of excitons. When used as an electron transport material, the compound can effectively reduce the driving voltage of an organic electroluminescent device, improve the light-emitting efficiency of the organic electroluminescent device, and prolong the service life of the organic electroluminescent device. The application also provides an organic electroluminescent device and a display device comprising the compound of formula (I).

This invention discloses a light-emitting device and a display panel. The light-emitting device includes a first electrode, a second electrode, at least two stacked light-emitting structural layers, a charge-generating layer, and an ion-blocking and electron-transporting layer; wherein the second electrode is disposed opposite to the first electrode; the light-emitting structural layer is located between the first electrode and the second electrode; the charge-generating layer is located between the two light-emitting structural layers; and the ion-blocking and electron-transporting layer is located between the charge-generating layer and the electron-transporting and injection layer of the light-emitting structural layer. In this invention, under high-temperature operation, the ion-blocking and electron-transporting layer can prevent ions in the charge-generating layer from diffusing into the electron-transporting and injection layer, avoiding interference with electron injection and transport, preventing holes and electrons from diffusing or interacting with each other, and also improving the efficiency of electron transport from the charge-generating layer to the electron-transporting and injection layer. While improving the luminous brightness, it effectively stabilizes and reduces the driving voltage of the light-emitting device during operation.

The present invention relates to the technical field of dimming films, and particularly to a dye PDLC composition and a PDLC dimming film. Based on the total weight of the dye PDLC composition being 100%, the dye PDLC composition comprises the following components in percentage by weight: 35-66% of a liquid crystal composition, 3-7% of an anthraquinone-type dichroic dye, 30-60% of a polymer precursor, 0.05-3% of a photoinitiator, and 0.2-1% of a spacer. The polymer precursor comprises an oligomer and an active diluent with a mass ratio of 1:(2-7). The components of the dye PDLC composition provided by the present invention act synergistically, and the PDLC dimming film prepared therefrom has a high off-state haze, a low on-state haze, and a low driving voltage, and at the same time has excellent properties such as light absorption and heat insulation, a wide full-light dimming range, and color tunability.

The present application relates to a kind of compound and its application, the compound has the structure shown in formula I, there is the aryl group of single bond or aryl group and anthracene group in the compound, and also substituted with aryl or heteroaromatic group on anthracene group, the compound with this special structure is very suitable for being applied in OLED device, especially as the blue light host material in device, can effectively improve the efficiency and life of device, while reducing drive voltage.

The invention relates to the technical field of target materials, in particular to a high-stability tungsten oxide target material for intelligent dimming glass and a preparation method of the high-stability tungsten oxide target material for the intelligent dimming glass. The modified element is at least one of Nb, Ta and Sn; the doping amount of the modified element is 0.5%-5% of the mass of the tungsten oxide matrix. The doping elements (such as Nb < 5 + > and Sn < 4 + >) are similar to W < 6 + > in radius, a stable solid solution is formed, lattice distortion in the ion circulation process is inhibited, microcracks are reduced, and conductivity is enhanced.

The invention belongs to the technical field of organic electroluminescence, and particularly relates to an organic compound and application thereof. According to the organic compound provided by the invention, the parent nucleus in the structure of the formula (1) is taken as a basis and is matched with different substituent groups, so that the whole compound shows relatively high electron transmission performance; the carrier mobility of the organic compound with the specific structure is relatively balanced, so that the organic electroluminescent device containing the organic compound has relatively low driving voltage, relatively high luminous efficiency and relatively long service life.

The present disclosure relates to a heterocyclic compound represented by Chemical Formula 1, an organic light-emitting device including the heterocyclic compound, and a composition for an organic material layer. Chemical Formula 1: In Chemical Formula 1, the definition of each substituent is the same as that defined in the specification.

This invention relates to a compound containing a pyranoquinoxaline structure and its applications, belonging to the field of organic electroluminescent materials technology. The compound containing the pyranoquinoxaline structure has the following structural formula: Ar is selected from aromatic hydrocarbon groups with 6-30 carbon atoms (deuterated or undeuterated) and heteroaryl groups with 5-30 carbon atoms (deuterated or undeuterated), wherein the heteroatoms in the heteroaryl group are selected from N, S, and O. The compound containing the pyranoquinoxaline structure is used in organic electroluminescent devices. The compound containing the pyranoquinoxaline structure of this invention, used as a host material and electron transport material in organic electroluminescent devices, can restrict carrier flow within the light-emitting layer, providing better device performance, including lower driving voltage, higher current efficiency, and extended lifespan. It significantly improves device lifespan and has good application effects in OLED light-emitting devices, showing promising industrialization prospects.

The application belongs to the technical field of display, and particularly relates to an arylamine compound and application thereof. The arylamine compound provided by the application has the structure shown in the figure, and different substituents are combined to form a specific parent nucleus structure. In the structure, the meta benzene is connected with the 1-position dibenzofuran or the 1-position dibenzothiophene to form a structure with specific steric hindrance, which not only makes the electron cloud distribution transfer to the N atom to improve the electron donating ability, but also effectively changes the molecular packing to form a stable thin film. Under the synergistic action of various groups, the hole transport capacity of the material is improved, and the carrier transport is more efficient and balanced. The arylamine compound is applied to a light-emitting auxiliary layer or other functional materials of an organic electroluminescent device, and can better match other layers, so that the organic electroluminescent device has a lower driving voltage, a higher light-emitting efficiency and a longer service life.

This invention discloses an organic compound, its preparation method, and an organic electroluminescent device, relating to the field of luminescent materials technology. The chemical formulas I-1 and I-2 provided by this invention are fluorene compounds with a unique fluorene structure. As a light-emitting auxiliary layer in a red organic electroluminescent device, this type of compound can reduce the potential barrier between the hole transport layer and the light-emitting layer, lower the driving voltage of the organic electroluminescent device, further improve the hole transport rate and electron blocking ability, and increase the charge balance between holes and electrons within the light-emitting layer. This allows light to be formed effectively within the light-emitting layer, rather than on the surface of the hole transport layer, thereby greatly improving the device's lifetime and luminous efficiency.

This invention provides a carbazole-substituted phenanthrene compound, an intermediate, and an organic electroluminescent device. The carbazole-substituted phenanthrene compound has the structure of Formula I. By designing the structure of the carbazole-substituted phenanthrene compound, this invention prepares a high-performance carbazole-substituted phenanthrene compound. Organic electroluminescent devices prepared using this carbazole-substituted phenanthrene compound as the light-emitting layer material exhibit high current efficiency, long lifetime, and low driving voltage.

An organometallic compound represented by the following chemical formula 1 is disclosed. When said organometallic compound is used as a dopant in the light-emitting layer of an organic electroluminescent device, the organometallic compound molecules are given rigidity, resulting in a narrow full width at half maximum (FWHM), thus improving color purity. Furthermore, non-luminescent recombination processes are reduced, thereby improving the luminous efficiency and lifetime of the organic electroluminescent device. Chemical formula 1 is shown below:

An organic electroluminescence device comprises an anode, a cathode and an organic layer formed between the anode and the cathode, the organic layer comprising a hole injection layer, a hole transport region, an electron blocking layer, a light emitting region, an electron transport region; the hole transport region comprises a first material and a second material, the first material and the second material are sequentially evaporated to form two layers of hole transport layer, the first material is selected from the compound shown in formula 1; the second material is selected from the compound shown in formula 2. The first material with high refractive index is arranged as the first hole transport layer, the second material with low refractive index is arranged as the second hole transport layer, and the structure of the first material and the second material is limited respectively, through the comprehensive regulation of the material structure, the energy level and the refractive index of the double-layer hole transport layer, the limitations of single material or simple mixed material in the hole transport and the light emitting efficiency are overcome.

The present application provides a kind of deuterated composition, organic electroluminescent device and display device.The deuterated composition includes the deuterated mixture prepared by deuterium reaction of compound A;The compound A has the structure shown as formula I.In the present application, the deuterated mixture obtained by deuterium reaction of the compound with a specific structure is used as the host material of light-emitting layer, and further an organic electroluminescent device with lower driving voltage, higher efficiency and longer service life is obtained.