Electroluminescent Light Sources TRIZ Cases

A driver circuit uses a transformer and bipolar junction transistor to step up low DC voltage into high-frequency pulses.

Synchronous switch discharges output capacitor to eliminate tail current, preventing color shift during LED dimming.

A PWM IC generates a sawtooth wave voltage to control LED brightness via a COMP terminal comparison.

Alternating current direction in adjacent LED rows counters illumination bias, ensuring uniform curing of photocurable liquids on recording media.

A switch control circuit integrates measured current and compares it to a reference value to regulate buck converter operation.

Adjustable integrated slew-rate control circuit limits voltage spikes in LED dimming applications.

A compensation circuit dynamically adjusts electrical current through light emitting devices to maintain color uniformity.

LED fixtures dim automatically on backup power detection, eliminating separate emergency circuits and reducing generator sizing costs.

Charge pumps boost drive voltage for series LEDs, resolving power shortages while reducing energy loss during current regulation.

A cross loop control circuit rapidly adjusts power distribution between multiple outputs using saturation indicating signals to charge error amplifiers.

A protective layer shields pixel circuits during OLED fabrication.

Independent upper and lower mask frame adjustment compensates for twist during large-area deposition.

A unified light-extracting unit combines a prism array and fine particle layer to optimize external light extraction in organic electroluminescent devices.

A voltage snubber circuit bypasses initial power spikes to protect LED strings from overvoltage damage during startup.

Dual exciton-blocking layers with distinct triplet energies prevent exciton leakage, enhancing quantum efficiency and operational lifetime.

Digital sensing replaces resistive feedback to eliminate energy loss, reducing component costs while maintaining precise current regulation.

A stacked organic electroluminescent device structure featuring an n-type layer on the cathode side of the light emitting unit.

A light source system uses coplanar electrodes to excite luminescent nanoparticles within liquid media for direct electroluminescence.

Segmented insulation layers and partition walls improve anode adhesion while reducing cathode resistance in top emission organic EL devices.

Sub mounts elevate light-emitting diodes to improve light extraction and heat dissipation, resolving low efficacy in illumination systems.

Laser inversion aligns the resin film layer outward during hole formation, eliminating positional deviations that degrade OLED quality.

A switched-capacitor galvanically isolated LED driver circuit provides electrical conversion and current regulation.

Segmented circuit design prevents voltage drops that trigger false short-circuit detection, ensuring stable LED operation.

Two distinct red phosphors in the luminophoric medium improve color rendering index while maintaining luminous flux by targeting specific spectral regions.

A DC-DC converter controller regulates switching timing to maintain continuous current mode operation.

A control module adjusts LED drive current using calibration data to maintain consistent luminosity across varying temperatures.

Tandem organic electroluminescent element combines red, green, and blue layers to emit white light with continuous spectrum for high color rendering.

A device controller interpolates data values to generate smooth control signals for lamp light output levels.

Reducing water content to 2 volume percent suppresses bubble generation in sealing layers during rapid heating processes exceeding 100 C per minute.

Reference marks on flexible substrates enable precise partition wall positioning, reducing apparatus costs while maintaining high precision for large panels.

Externalizing sweep voltage supply removes internal switches and wiring lines, increasing pixel aperture ratio while maintaining brightness uniformity.

A current generation supply circuit generates drive currents using a signal holding circuit and an operational state setting circuit.

An organometallic compound doped into the emission layer enhances electrical conductivity and stability.

A suppression mechanism in an OLED emissive layer selectively reduces emission from secondary phosphorescent dopants to refine color output.

Conjugated diketopyrrolopyrrole polymers deliver high charge carrier mobilities and excellent film-forming properties in organic solvents.

A transparent substrate integrates an epoxy group-terminated coupling agent between inorganic glass and a thermoplastic resin layer to form strong chemical bonds.

A compensation circuit counters offset voltage errors in LED operating circuits using a secondary diode and operational amplifier.

A maskless OLED encapsulation method uses a sacrificial layer and laser irradiation to define pad openings.

Mixed polar and non-polar ligands on inorganic particles prevent energy transfer losses, boosting light efficiency in white OLED displays.

A self-calibrating optical detector adjusts its detection threshold using a signal generator to ensure accurate material sensing.

Interrupt circuit short-circuits LEDs to lower forward voltage, enabling standard DC/DC converters to maintain reliable operation at low temperatures.

A color conversion film uses a specific organic compound to convert incident light into longer wavelengths.

Optimizing electrode reflectance to twenty-five percent alongside a black insulating layer minimizes color shift from light diffusion between pixels.

A top contact field-effect transistor uses a gallium-containing oxide protection layer patterned by alkaline development.

An integrated LED structure with optically isolated emission areas and wavelength conversion materials enables dynamic spectrum tuning via common current control.

Series radio interference suppression element and filter reduce electromagnetic interference while eliminating standby glow.

Alternating decoupling and variable-thickness barrier layers enable elastic deformation without cracking, maintaining effective moisture and oxygen protection.

A battery-powered DMX controller uses wireless interfaces to manage lighting systems remotely.

Organic light emitting diode with an exciton blocking layer confines charge carriers to improve efficiency.

Double-bridged aromatic compounds withstand sublimation without decomposition, resolving the contradiction between thermal stability and ease of manufacture.