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30results about How to "Increase the lighting voltage" patented technology
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Pixel structure, manufacturing method thereof and display panel
ActiveCN105428391AIncrease the lighting voltageMitigate color crosstalkSolid-state devicesSemiconductor devicesEngineeringCrosstalk
The embodiment of the invention discloses a pixel structure, a manufacturing method thereof, and a display panel. The pixel structure includes a substrate, an anode layer, a first auxiliary light-emitting layer, a light-emitting layer, a cathode layer and at least one first resistor structure; the light-emitting layer at least comprises a first light-emitting portion and a second light-emitting portion; the first light-emitting portion corresponding to first sub pixels; the second light-emitting portion is corresponding to the second sub pixels; the turn-on voltage of the first sub pixels is larger than the turn-on voltage of the second pixels; the first resistor structures are located on a closed path from the first auxiliary light emitting layer to the cathode layer and are arranged at the vertical direction of the second light-emitting portion and are at least partially overlapped with the second light-emitting portion, and are not overlapped with the first light-emitting portion; and the absolute value of the difference value between the sum of the resistance values of the at least one first resistor structure and the second light-emitting portion and the resistance value of the first light-emitting portion is smaller than a first preset value, so that color crosstalk which occurs when a display panel comprising the pixel structure performs display can be alleviated, and the display quality of the display panel is improved.
Owner:TIANMA MICRO ELECTRONICS CO LTD +1
Organic electroluminescent device and organic electroluminescent apparatus
ActiveCN108987593AImprove control effectEffectively regulate the lighting voltageSolid-state devicesSemiconductor/solid-state device manufacturingOrganic electroluminescencePhysics
The invention relates to the technical field of display. The organic electroluminescent device comprises a first electrode layer, a first carrier functional layer, a light emitting layer and a secondelectrode layer which are stacked in sequence. The luminescent layer comprises a host material and a guest material. By doping the guest material in the first carrier functional layer, the carrier migration efficiency can be effectively regulated, and the lighting voltage of the organic electroluminescent device can be regulated. The organic electroluminescent device of the invention, comprises aplurality of pixel elements distributed in the array, by forming a light emitting layer guest material doping structure in a first carrier functional layer in a red photon pixel unit and / or a green photon pixel unit, the turn-on voltage of red photon pixel unit and / or green photon pixel unit are improved, the turn-on voltage difference is reduced, the color deviation problem of organic electroluminescent device is alleviated effectively, and the color stability of the device is improved.
Owner:YUNGU GUAN TECH CO LTD
Method for measuring content of particle surface ligand and quantum dot ink preparing method
ActiveCN109932325AGuaranteed uniformitySame solubilityColor/spectral properties measurementsSolubilityCoffee ring effect
The invention provides a method for measuring the content of particle surface ligand and a quantum dot ink preparing method. When the method is used for preparing quantum dot ink, the uniformity of quantum dot ink quality can be ensured, the consistency of the solubility, drying rates and coffee ring effects of different batches of quantum dot ink is guaranteed, and the pixel resolution and uniformity of the lighting voltages and photoelectric efficiency of the quantum dot display panel are improved.
Owner:TCL CORPORATION
Method for measuring content of quantum dot surface ligand and quantum dot ink preparing method
ActiveCN109932405ASimple methodWide range of applicationsChemical analysis using titrationMaterial electrochemical variablesPhysicsImage resolution
The invention provides a method for measuring the content of quantum dot surface ligand and a quantum dot ink preparing method. When the method is used for preparing quantum dot ink, the uniformity ofquantum dot ink quality can be ensured, the consistency of the solubility, drying rates and coffee ring effects of different batches of quantum dot ink is guaranteed, and the pixel resolution and uniformity of the lighting voltages and photoelectric efficiency of the quantum dot display panel are improved.
Owner:TCL CORPORATION
Method for measuring coverage rate of quantum dot surface ligand
ActiveCN109932267AThe result is accurateEasy to operateParticle size analysisMaterial weighingPhysicsImage resolution
The invention provides a method for measuring the coverage rate of a quantum dot surface ligand, thereby realizing quality evaluation of quantum dots. If Ki is less than 2*10<-10> mol / cm<2>, the quality of the quantum dot is poor; and solution or ink configuration can not be carried out until the Ki value is improved. With the provided method, the result is accurate; and the operation is simple. Furthermore, with the method, the high stability of the quantum dot surface ligand content is ensured; the solubility of different batches of quantum dots is guaranteed; a coffee ring effect caused bydifferent drying rates in quantum dot solution preparation for a film is avoided; add the pixel resolution and uniformity of the brightening voltage and the photoelectric efficiency of the quantum dotdisplay panel can be improved.
Owner:TCL CORPORATION
Method for measuring coverage rate of quantum dot surface ligand
ActiveCN109932378AGuaranteed SolubilityGuaranteed stabilityAnalysis using nuclear magnetic resonancePhotovoltaic energy generationSolubilityCoffee ring effect
The invention provides a method for measuring the coverage rate of a quantum dot surface ligand, thereby realizing quality evaluation of quantum dots. If Ki is less than 2*10<-10> mol / cm<2>, the quality of the quantum dot is poor; and solution or ink configuration can not be carried out until the Ki value is improved. With the provided method, the result is accurate; and the operation is simple. Furthermore, with the method, the high stability of the quantum dot surface ligand content is ensured; the solubility of different batches of quantum dots is guaranteed; a coffee ring effect caused bydifferent drying rates in quantum dot solution preparation for a film is avoided; add the pixel resolution and uniformity of the brightening voltage and the photoelectric efficiency of the quantum dotdisplay panel can be improved.
Owner:TCL CORPORATION
Method for measuring quantum dot surface ligand content and quantum dot ink preparing method
ActiveCN109932358AQuality assuranceSimple methodAnalysis by thermal excitationSolubilityCoffee ring effect
The invention provides a method for measuring the quantum dot surface ligand content and a quantum dot ink preparing method. When the method is used for preparing quantum dot ink, the uniformity of quantum dot ink quality can be ensured, the consistency of the solubility, drying rates and coffee ring effects of different batches of quantum dot ink is guaranteed, and the pixel resolution and uniformity of the lighting voltages and photoelectric efficiency of the quantum dot display panel are improved.
Owner:TCL CORPORATION
Method for measuring coverage rate of quantum dot surface ligand
ActiveCN109932326AGuaranteed stabilityGuaranteed SolubilityColor/spectral properties measurementsPhotovoltaic energy generationSolubilityCoffee ring effect
The invention provides a method for measuring the coverage rate of a quantum dot surface ligand. The coverage rate Ki of the organic ligand containing sulfydryl on the quantum dot surface is determined by an oxidation-reduction method. The method can be used for quality evaluation of the quantum dot. If the Ki is less than 2*10<-10> mol / cm<2>, the quality of the quantum dot is poor; and solution or ink configuration can not be carried out until the Ki value is improved. With the provided method, the result is accurate; and the operation is simple. Furthermore, with the method, the high stability of the quantum dot surface ligand content is ensured; the solubility of different batches of quantum dots is guaranteed; a coffee ring effect caused by different drying rates in quantum dot solution preparation for a film is avoided; add the pixel resolution and uniformity of the brightening voltage and the photoelectric efficiency of the quantum dot display panel can be improved.
Owner:TCL CORPORATION
Method for measuring coverage rate of quantum dot surface ligand
ActiveCN109932476AGuaranteed SolubilityIncrease pixel resolutionChemical analysis using titrationPhotovoltaic energy generationSolubilityCoffee ring effect
The invention provides a method for measuring the coverage rate of a quantum dot surface ligand. The coverage rate Ki of the organic ligand containing sulfydryl or nitrogen on the quantum dot surfaceis determined by potentiometric titration. The method can be used for quality evaluation of the quantum dot. If the Ki is less than 2*10<-10> mol / cm<2>, the quality of the quantum dot is poor; and solution or ink configuration can not be carried out until the Ki value is improved. With the provided method, the result is accurate; and the operation is simple. Furthermore, with the method, the highstability of the quantum dot surface ligand content is ensured; the solubility of different batches of quantum dots is guaranteed; a coffee ring effect caused by different drying rates in quantum dotsolution preparation for a film is avoided; add the pixel resolution and uniformity of the brightening voltage and the photoelectric efficiency of the quantum dot display panel can be improved.
Owner:TCL CORPORATION
Method for measuring content of quantum dot surface ligand and quantum dot ink preparing method
InactiveCN109932274AGuaranteed uniformityGuaranteed SolubilityWeighing by removing componentPreparing sample for investigationSolubilityCoffee ring effect
The invention provides a method for measuring the content of quantum dot surface ligand and a quantum dot ink preparing method. When the method is used for preparing quantum dot ink, the uniformity ofquantum dot ink quality can be ensured, the consistency of the solubility, drying rates and coffee ring effects of different batches of quantum dot ink is guaranteed, and the pixel resolution and uniformity of the lighting voltages and photoelectric efficiency of the quantum dot display panel are improved.
Owner:TCL CORPORATION
Method for measuring ligand content on quantum dot surface and preparation method for quantum dot ink
ActiveCN109932405BGuaranteed uniformityGuaranteed SolubilityChemical analysis using titrationMaterial electrochemical variablesChemical physicsCoffee ring effect
The invention provides a method for measuring the ligand content on the surface of the quantum dot and a preparation method for the quantum dot ink. The quantum dot ink preparation method of the present invention is used to configure the quantum dot ink, which can ensure the uniformity of the quality of the quantum dot ink, and can ensure that the solubility, drying rate and coffee ring effect of different batches of quantum dot ink are the same, and can improve the quality of the quantum dot ink. The uniformity of pixel resolution, turn-on voltage, and photoelectric efficiency of the display panel.
Owner:TCL CORPORATION
Display panel, manufacturing method thereof and display device
PendingCN113690377AIncrease the lighting voltageIncreased injection difficultySolid-state devicesSemiconductor/solid-state device manufacturingPhysicsDisplay device
The invention relates to a display panel, a manufacturing method thereof and a display device, and belongs to the technical field of display. The display panel comprises a substrate and a plurality of sub-pixels located on the substrate, and the plurality of sub-pixels comprise red sub-pixels. The plurality of sub-pixels comprise an anode layer, a hole transport layer, a light-emitting layer and a cathode layer which are stacked on the substrate in sequence; the red sub-pixel further comprises at least two buffer layers, the at least two buffer layers are located between the hole transport layer and the light-emitting layer, in the first direction, the energy levels of the at least two buffer layers are gradually reduced, the energy levels of the at least two buffer layers are both lower than the energy level of the light-emitting layer, and the first direction is the direction from the hole transport layer to the light-emitting layer. The energy levels of the at least two buffer layers are gradually reduced, the charge injection difficulty is increased, charges are prevented from being gathered on the light-emitting layer, the service life of the light-emitting layer is prolonged, and therefore the service life of the display panel is prolonged.
Owner:BOE TECH GRP CO LTD
Method for measuring content of quantum dot surface ligand and quantum dot ink preparing method
ActiveCN109932285AGuaranteed uniformityGuaranteed SolubilityMaterial analysisSolubilityCoffee ring effect
The invention provides a method for measuring the content of quantum dot surface ligand and a quantum dot ink preparing method. When the method is used for preparing quantum dot ink, the uniformity ofquantum dot ink quality can be ensured, the consistency of the solubility, drying rates and coffee ring effects of different batches of quantum dot ink is guaranteed, and the pixel resolution and uniformity of the lighting voltages and photoelectric efficiency of the quantum dot display panel are improved.
Owner:TCL CORPORATION
A method for measuring the coverage of ligands on the surface of quantum dots
ActiveCN109932476BGuaranteed SolubilityIncrease pixel resolutionChemical analysis using titrationPhotovoltaic energy generationChemical physicsCoffee ring effect
Owner:TCL CORPORATION
Quantum dot surface ligand content measuring method and quantum dot ink preparation method
ActiveCN109946331ASimple methodWide range of applicationsMaterial analysis using wave/particle radiationInksSolubilityPhotoelectric efficiency
The invention provides a quantum dot surface ligand content measuring method and a quantum dot ink preparation method. When the method is adopted to prepare the quantum dot ink, the uniformity of thequality of the quantum dot ink can be ensured, the solubility, the drying rate and the coffee ring effect of the quantum dot ink in different batches can be ensured to be the same, and the uniformityof the pixel resolution, the turn-on voltage and the photoelectric efficiency of the quantum dot display panel can be improved.
Owner:TCL CORPORATION
A method for measuring the coverage of ligands on the surface of quantum dots
ActiveCN109932357BGuaranteed SolubilityGuaranteed stabilityAnalysis by thermal excitationPhotovoltaic energy generationChemical physicsCoffee ring effect
Owner:TCL CORPORATION
Determination method of quantum dot surface ligand content and quantum dot ink preparation method
ActiveCN109932358BQuality assuranceSimple methodAnalysis by thermal excitationChemical physicsCoffee ring effect
The invention proposes a method for measuring ligand content on the surface of quantum dots and a method for preparing quantum dot ink. Using this method to configure the quantum dot ink can ensure the uniformity of the quality of the quantum dot ink, and can ensure that the solubility, drying rate and coffee ring effect of different batches of quantum dot ink are the same, and can improve the pixel resolution of the quantum dot display panel. , Uniformity of lighting voltage and photoelectric efficiency.
Owner:TCL CORPORATION
Method for measuring content of quantum dot surface ligand and quantum dot ink preparing method
ActiveCN109932379AQuality assuranceSimple methodAnalysis using nuclear magnetic resonanceSolubilityCoffee ring effect
The invention provides a method for measuring the content of quantum dot surface ligand and a quantum dot ink preparing method. When the method is used for preparing quantum dot ink, the uniformity ofquantum dot ink quality can be ensured, the consistency of the solubility, drying rates and coffee ring effects of different batches of quantum dot ink is guaranteed, and the pixel resolution and uniformity of the lighting voltages and photoelectric efficiency of the quantum dot display panel are improved.
Owner:TCL CORPORATION
Method for measuring coverage rate of quantum dot surface ligand
ActiveCN109932373AGuaranteed SolubilityGuaranteed stabilityMaterial analysis using wave/particle radiationPhotovoltaic energy generationPhysicsSolubility
The invention provides a method for measuring the coverage rate of a quantum dot surface ligand, thereby realizing quality evaluation of quantum dots. If Ki is less than 2*10<-10> mol / cm<2>, the quality of the quantum dot is poor; and solution or ink configuration can not be carried out until the Ki value is improved. With the provided method, the quantum dot surface ligand coverage rate is determined; the result is accurate; and the operation is simple. Furthermore, with the method, the high stability of the quantum dot surface ligand content is ensured; the solubility of different batches ofquantum dots is guaranteed; a coffee ring effect caused by different drying rates in quantum dot solution preparation for a film is avoided; add the pixel resolution and uniformity of the brighteningvoltage and the photoelectric efficiency of the quantum dot display panel can be improved.
Owner:TCL CORPORATION
Determination method of quantum dot surface ligand content and quantum dot ink preparation method
ActiveCN109932379BGuaranteed uniformitySame solubilityAnalysis using nuclear magnetic resonanceChemical physicsCoffee ring effect
Owner:TCL CORPORATION
Pixel structure and manufacturing method thereof, display panel
ActiveCN105428391BIncrease the lighting voltageMitigate color crosstalkSolid-state devicesSemiconductor devicesLight-emitting diodeCrosstalk
Owner:TIANMA MICRO ELECTRONICS CO LTD +1
Determination method of quantum dot surface ligand content and quantum dot ink preparation method
ActiveCN109946331BGuaranteed uniformityGuaranteed SolubilityMaterial analysis using wave/particle radiationInksCoffee ring effectImage resolution
The invention proposes a method for measuring ligand content on the surface of quantum dots and a method for preparing quantum dot ink. Using this method to configure the quantum dot ink can ensure the uniformity of the quality of the quantum dot ink, and can ensure that the solubility, drying rate and coffee ring effect of different batches of quantum dot ink are the same, and can improve the pixel resolution of the quantum dot display panel. , Uniformity of lighting voltage and photoelectric efficiency.
Owner:TCL CORPORATION
A method for measuring the coverage of ligands on the surface of quantum dots
ActiveCN109932373BGuaranteed SolubilityGuaranteed stabilityMaterial analysis using wave/particle radiationPhotovoltaic energy generationChemical physicsCoffee ring effect
The invention provides a method for measuring the ligand coverage on the surface of quantum dots, which can be used for quality assessment of quantum dots. If K i less than 2*10 ‑10 mol / cm 2 , the quality of quantum dots is not good, and K i Increase the value before proceeding with applications such as solution or ink dispensing. Adopt this method to determine quantum dot surface ligand coverage rate, result is accurate, easy to operate, further, can guarantee the stability of quantum dot surface ligand content by the method of the present invention, can guarantee the solubility of different batches of quantum dots, avoid The coffee ring effect caused by the different drying rates when the quantum dot solution is prepared into a film can improve the uniformity of the pixel resolution, turn-on voltage, and photoelectric efficiency of the quantum dot display panel.
Owner:TCL CORPORATION
A method for measuring the coverage of ligands on the surface of quantum dots
ActiveCN109932326BGuaranteed stabilityGuaranteed SolubilityColor/spectral properties measurementsPhotovoltaic energy generationChemical physicsCoffee ring effect
The invention proposes a method for measuring the coverage ratio of ligands on the surface of quantum dots. Determination of coverage rate K of thiol-containing organic ligands on the surface of quantum dots by redox method i , which can be used to evaluate the quality of quantum dots. If K i less than 2*10 ‑10 mol / cm 2 , the quality of quantum dots is not good, and K i Increase the value before proceeding with applications such as solution or ink dispensing. Adopt this method to determine quantum dot surface ligand coverage rate, result is accurate, easy to operate, further, can guarantee the stability of quantum dot surface ligand content by the method of the present invention, can guarantee the solubility of different batches of quantum dots, avoid The coffee ring effect caused by the different drying rates when the quantum dot solution is prepared into a film can improve the uniformity of the pixel resolution, turn-on voltage, and photoelectric efficiency of the quantum dot display panel.
Owner:TCL CORPORATION
Determination method of quantum dot surface ligand content and quantum dot ink preparation method
ActiveCN109932285BGuaranteed uniformityGuaranteed SolubilityMaterial analysisChemical physicsCoffee ring effect
Owner:TCL CORPORATION
Determination method of ligand content on particle surface and preparation method of quantum dot ink
ActiveCN109932325BGuaranteed uniformitySame solubilityColor/spectral properties measurementsCoffee ring effectImage resolution
Owner:TCL CORPORATION
A method for measuring the coverage of ligands on the surface of quantum dots
ActiveCN109932267BGuaranteed SolubilityIncrease pixel resolutionParticle size analysisMaterial weighingChemical physicsCoffee ring effect
Owner:TCL CORPORATION
Method for measuring coverage rate of quantum dot surface ligand
ActiveCN109932357AGuaranteed SolubilityGuaranteed stabilityAnalysis by thermal excitationPhotovoltaic energy generationPhysicsImage resolution
The invention provides a method for measuring the coverage rate of a quantum dot surface ligand, thereby realizing quality evaluation of quantum dots. If Ki is less than 2*10<-10> mol / cm<2>, the quality of the quantum dot is poor; and solution or ink configuration can not be carried out until the Ki value is improved. With the provided method, the result is accurate; and the operation is simple. Furthermore, with the method, the high stability of the quantum dot surface ligand content is ensured; the solubility of different batches of quantum dots is guaranteed; a coffee ring effect caused bydifferent drying rates in quantum dot solution preparation for a film is avoided; add the pixel resolution and uniformity of the brightening voltage and the photoelectric efficiency of the quantum dotdisplay panel can be improved.
Owner:TCL CORPORATION
Organic electroluminescent device and organic electroluminescent device
ActiveCN108987593BEffectively regulate the lighting voltageEffective regulation of migration efficiencySolid-state devicesSemiconductor/solid-state device manufacturingColor shiftOrganic electroluminescence
The present invention relates to the field of display technology. The organic electroluminescent device described in the present invention comprises a first electrode layer, a first carrier functional layer, a light emitting layer and a second electrode layer which are sequentially stacked. The light-emitting layer includes a host material and a guest material, and by doping the guest material in the first carrier functional layer, the transfer efficiency of carriers can be effectively regulated, and thus the turn-on voltage of the organic electroluminescent device can be regulated. The organic electroluminescent device according to the present invention includes several pixel units distributed in an array, by forming a light-emitting layer guest material doping structure in the first carrier functional layer in the red sub-pixel unit and / or the green sub-pixel unit , to increase the turn-on voltage of the red sub-pixel unit and / or the green sub-pixel unit, reduce the difference in turn-on voltage, effectively alleviate the color shift problem of the organic electroluminescent device, and improve the color stability of the device.
Owner:YUNGU GUAN TECH CO LTD
A method for measuring the coverage of ligands on the surface of quantum dots
ActiveCN109932378BGuaranteed SolubilityGuaranteed stabilityAnalysis using nuclear magnetic resonancePhotovoltaic energy generationChemical physicsCoffee ring effect
The invention provides a method for measuring the ligand coverage on the surface of quantum dots, which can be used for quality assessment of quantum dots. If K i less than 2*10 ‑10 mol / cm 2 , the quality of quantum dots is not good, and K i Increase the value before proceeding with applications such as solution or ink dispensing. Adopt this method to determine quantum dot surface ligand coverage rate, result is accurate, easy to operate, further, can guarantee the stability of quantum dot surface ligand content by the method of the present invention, can guarantee the solubility of different batches of quantum dots, avoid The coffee ring effect caused by the different drying rates when the quantum dot solution is prepared into a film can improve the uniformity of the pixel resolution, turn-on voltage, and photoelectric efficiency of the quantum dot display panel.
Owner:TCL CORPORATION
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