74results about How to "Increase the driving voltage" patented technology

The invention discloses a doping material for an organic electroluminescent layer, a preparation method and an organic electroluminescent device, a compound in the doping material adopts a specific structure, phenyl dibenzofuran groups at specific positions are introduced on dibenzofuran, and some groups are added, so that the doping material is prepared. According to the present invention, the doping material compound changes the molecular space structure, the electrochemical characteristics of the compound are adjusted, the dipole moment of the intermolecular structure is improved, the prepared compound is used as the light emitting layer doping material in the organic electroluminescent device, the driving voltage is significantly reduced, and the light emitting efficiency and the service life are significantly improved.

The present invention provides a novel compound and an organic light emitting device comprising the same.

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 invention discloses a blue light-emitting composition and an organic electroluminescent device and a display device containing the same. The blue light-emitting composition includes a compound with a general structural formula as shown in Formula I, and a compound with a general structural formula as shown in Formula II. The present invention introduces a fluorene or heterofluorene fragment, especially a dibenzofuran fragment, into both the host and guest materials, which can improve the electron transport properties of the host and guest materials, and the fragment on the guest material has a cycloalkyl structure, which increases the distance between the host and the guest, thereby reducing concentration quenching, and the cycloalkyl structure increases the steric hindrance during the aggregation process of the host and guest materials in the film, which is beneficial to limit the free rotation of the single bonds connecting the fragments on the host and guest materials to a certain extent, which is beneficial to reduce the non-radiative transition of solid molecules in the film, increase the radiation probability of the composite exciton, and can significantly improve the performance of the organic electroluminescent device in terms of driving voltage, external quantum efficiency and life. I, II

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).

The invention belongs to the field of organic photoelectric materials, and provides a phosphorescent doped material, a preparation method thereof and an organic electroluminescent device containing the phosphorescent doped material. The structure of the phosphorescent doping material is as shown in formula I: # imgabs0. The organic electroluminescent device prepared from the phosphorescent doping material has the technical effects of high luminous efficiency, long service life and improvement of driving voltage.

The present specification relates to a compound of Chemical Formula 1 and an organic light-emitting device comprising the same.

The present invention provides an organic compound represented by the following general formula 1 and an organic electroluminescent device including the organic compound. [General formula 1]

The application provides a compound containing a fluorene group and an organic electroluminescent device thereof. The compound of the application contains at least one or more deuterium atoms in the structure, has higher electron mobility, and can effectively enhance the electron transport capacity of the organic electroluminescent device. The compound of the application can be applied to a light-emitting layer and an electron transport region, can effectively reduce the driving voltage of the organic electroluminescent device, improve the light-emitting efficiency, and can significantly increase the service life of the device, thereby enhancing the durability of the device. It can be widely applied to the field of information display technology, such as mobile phones, tablet computers, televisions, wearable devices, VR, vehicle displays and tail lights, etc.

The invention relates to the technical field of organic photoelectric materials, in particular to an aromatic amine compound and an organic electroluminescent device thereof. The aromatic amine compound provided by the invention has proper hole mobility, HOMO and T1 value, has proper charge transfer rate when being applied to an OLED device as a hole transport material, has high energy level matching degree with an adjacent organic matter layer, and can improve the luminous efficiency and driving voltage of the device and prolong the service life of the device. The structure also has good thermal stability and chemical stability, and the service life of the device is further prolonged. The structure can also be used as a covering layer material or a charge generation layer material to be applied to OLED devices.

The utility model relates to the field of double-tube isolation transformers, in particular to a drive circuit of a transformer, which comprises a high-voltage input module, a rectifying and filtering module, a drive control module, a push-pull drive module, a switch drive module, a drive power supply module and a low-voltage output module. The power input end of the high-voltage input module is connected with commercial power, the control end of the drive control module is electrically connected with the input end of the push-pull drive module, and the output end of the push-pull drive module is electrically connected with the input end of the switch drive module. The output end of the switch driving module is electrically connected with the input end of the low-voltage output module, the output end of the low-voltage output module outputs low-voltage power to an electric appliance, and commercial power is output to the low-voltage output module after passing through the high-voltage input module and the rectifying and filtering module; the driving control module and the switch driving module control the opening and closing of the low-voltage output module; the push-pull driving module reduces the turn-on loss, and the driving efficiency is high.

The present invention provides an organic light-emitting device, comprising: an anode; a cathode disposed opposite to the anode; and a light-emitting layer disposed between the anode and the cathode, wherein the light-emitting layer contains two host compounds, thereby improving the efficiency, driving voltage and lifetime characteristics of the organic light-emitting device.

This application discloses a pre-start control circuit, method, device, and auxiliary lamp for a lamp module. The application relates to the field of auxiliary lamp control technology. The pre-start control circuit includes: a drive voltage supply circuit connected to the drive switch of the lamp module, used to provide drive voltage to the drive switch; a current sampling circuit connected to the drive switch, used to collect the operating current of the drive switch; and a main control module connected to both the drive voltage supply circuit and the current sampling circuit, used to gradually output control signals after receiving the lamp module's turn-on signal, so that the drive voltage supply circuit gradually increases the drive voltage according to the control signals until the operating current of the drive switch reaches a target current; the target current is less than or equal to the maximum current that the drive switch can withstand. This application can improve the reliability of lamp module control.

The present invention provides an organic light emitting device comprising: an anode; a cathode; and an emissive layer disposed between the anode and the cathode, wherein the emissive layer comprises a plurality of host compounds.

Provided are an organic metal compound and an organic light-emitting device including the same.

The present invention provides a novel compound and an organic light emitting device comprising the same. Specifically, the present invention provides a compound represented by Chemical Formula 1. The compound represented by the above chemical formula 1 can be used as a material of an organic layer of an organic light-emitting device in which an improvement in efficiency, a lower driving voltage, and / or an improvement in lifespan characteristics can be achieved. In particular, the compound represented by the above chemical formula 1 can be used as a material for hole injection, hole transport, hole injection and transport, light emission, electron transport, or electron injection.

The invention provides a novel compound and an organic light-emitting device using the same. The present invention provides a compound represented by the following Chemical Formula 1. Furthermore, the present invention provides an organic light-emitting device including a first electrode, a second electrode provided so as to face the first electrode, and one or more organic material layers provided between the first electrode and the second electrode, one or more of the organic material layers containing a compound represented by Chemical Formula 1. The compound represented by the following Chemical Formula 1 can be used as a material of an organic material layer of an organic light-emitting device in which an improvement in efficiency, a lower driving voltage, and / or an improvement in lifespan characteristics can be achieved. [Chemical Formula 1] # imgabs0 #

The present specification provides a compound represented by Chemical Formula 1 and an organic light emitting device comprising the same.

The organic compound represented by Chemical Formula 1 of the present invention can achieve excellent hole injection characteristics and hole transport characteristics. Moreover, the hole transport auxiliary layer of the organic light emitting diode according to the present invention comprises the organic compound represented by Chemical Formula 1 according to the present invention, thereby improving the driving voltage, efficiency, and lifespan characteristics of the organic light emitting diode.

The invention provides a driving method of a display device and the display device. The driving method of the display device comprises the following steps: detecting a lock losing state fed back by a driving module; acquiring a signal representation corresponding to the lock losing state; when the signal characterization meets a preset condition, adjusting a driving voltage; and outputting the adjusted driving voltage to a time sequence control module, and increasing the driving voltage output to the time sequence control module when the signal representation corresponding to the lock losing state of the driving module meets the preset condition, so that the power consumption can be reduced while the normal display condition is met, and the display efficiency is improved. The anti-interference capability of the time sequence control module is improved when the external signal interference intensity is relatively large, so that the anti-interference capability of the display device can be improved, and the conditions of picture abnormity such as blank screen and splash screen of the display device are avoided.

The present invention provides an organic light emitting device having improved driving voltage and / or lifetime by including two types of host compounds in a light emitting layer.

The invention provides a driving circuit of a power tube and electronic equipment. The drive circuit amplifies the control signal through the isolation amplification circuit and outputs a first drive signal and a second drive signal, and the push-pull amplification circuit is used for outputting a third drive signal according to the first drive signal and outputting a fourth drive signal according to the second drive signal. And outputting a driving voltage to the power tube according to the third driving signal or the fourth driving signal. It can be seen that the level of the driving voltage can be improved through the first driving signal and the second driving signal, and the requirement for high conduction current (10 times or more than 10 times of IGBT rated current) of electronic equipment can be met. Through the first driving unit and the second driving unit which are connected in series, the driving voltage of the power tube can be improved, the anti-interference capability of the driving circuit is enhanced, the through-current capability of the power tube can be improved, and the switching loss and the cost of the power tube are reduced.

The present invention discloses a compound containing naphthalene and triazine structure, an organic electroluminescent device and a display element, and belongs to the technical field of semiconductor materials. The structure of the compound of the present invention is shown in the general formula (1): The compound containing naphthalene and triazine structure of the present invention is applied to an organic electroluminescent device. The compound of the present invention is based on the structure of naphthalene and triazine, and the triazine and triazine groups are connected by a specific aromatic bridging group to form a phenyl-substituted naphthyl or naphthyl-substituted phenyl or biphenyl framework bridging feature. The compound has good electron tolerance and stability, and has good electron injection and transmission capabilities. Therefore, when it is used as an electron transmission material of an OLED functional layer, it can effectively reduce the device driving voltage and improve the photoelectric performance and device life of the OLED device.

This invention provides a composition, an organic electroluminescent device, and a display device. The composition comprises a first compound having the structure shown in Formula I: A specific composition was used as the light-emitting layer material for OLED light-emitting devices, resulting in OLED light-emitting devices with a lower lifetime voltage growth.

The present specification relates to an organic light emitting element and a composition for forming an organic material layer. The organic light emitting element includes a first electrode, a second electrode, and an organic material layer disposed between the first electrode and the second electrode. The organic material layer includes a compound of the following Chemical Formula 1 and a compound of the following Chemical Formula 2.[Chemical Formula 1][Chemical Formula 2]

The present specification relates to a compound represented by Chemical Formula 1 and an organic light-emitting device including the same.