Electroluminescent Light Sources TRIZ Cases

Columnar light emitting device uses transparent electrodes and planar phosphor to emit light without a diffractive lens.

A light-emitting device positions the first electrode to overlap a capacitor connected to the driving transistor gate.

A flexible display side protector integrates a metal layer to shield the organic light-emitting layers from environmental damage.

Eliminates external sensor interconnections by embedding an organic light detecting element within the optoelectronic component structure.

A submersion detector triggers a controller to power only essential illuminants while cutting energy to non-essential circuits.

Hybrid organic-inorganic perovskite nanocrystals convert excitation light wavelengths to enhance optical stability and color purity in light-emitting diodes.

An electron transport layer with a 2.8 eV energy gap enhances electron injection in blue organic light emitting devices.

Entangled YAG:Ce and Al2O3 phases maintain high radiant flux when tuning fluorescence wavelength, resolving energy loss trade-offs.

Internal and external current limiter circuits regulate multi-string LED arrays using a common drive signal for low pin-count control.

A blocking layer confines triplet excitons to enable triplet-triplet fusion, raising internal quantum efficiency beyond the 25% fluorescent limit.

Visible light embedded communication replaces vulnerable radio waves with optical signals to prevent eavesdropping and interference in building networks.

A phase controller latency generator staggers pulse signal edges to prevent switching noise and waveform disturbances.

Strategic auxiliary interconnect placement reduces voltage drop while maintaining high aperture ratio in light-emitting devices.

A phosphor screen on the globe inner surface converts ultraviolet light to white light for uniform illumination.

Permeation prevention barriers shield organic electroluminescent displays from water and oxygen damage in humid environments.

A control unit modulates light intensity by synchronizing communication signal superposition with the switching circuit ON time.

A bridge-type AC light emitting diode structure integrates rectification and illumination functions.

A thermal protection circuit adjusts current to solid state light sources using a variable impedance driven by temperature sensing.

A graded hole-diffusion layer mitigates valence band barriers to enhance injection efficiency and output characteristics in high current applications.

Aerosol jet printing deposits a conductive bus line on an organic light emitting display substrate.

Stacked protective semiconductor films shield source and drain electrodes from impurity contamination, suppressing parasitic resistance variations.

An organic electroluminescence panel illuminates fingerprints directly through a light-transmitting non-emitting region adjacent to the image sensor.

Segmented power supplies eliminate charge pumps to reduce quiescent current consumption in organic light emitting displays.

A voltage-to-current converter adjusts infrared LED drive current using measured junction temperature data.

Mixing hole and electron transport compounds into one layer simplifies manufacturing while enhancing luminous efficiency and device durability.

Laser ablation removes foreign particles from organic layers in flexible OLED encapsulation structures.

Segmenting pixels into zones with varying cavity lengths balances brightness enhancement against viewing angle dependence in organic EL displays.

Composite mCP and TCTA hosts suppress chromaticity shifts at high temperatures while maintaining external quantum efficiency.

Dual oxide layers with distinct oxygen densities form electric dipoles that reduce injection barriers, resolving efficiency losses from high energy gaps.

A flexible organic EL panel uses a chemically strengthened glass substrate with an amorphous silica-based alkali barrier film to enhance light extraction efficiency.

Automated fixture discovery and grouping in a wireless lighting network reduce commissioning time while controlling bandwidth consumption.

Synchronizing pulse width modulation signals across LED arrays minimizes visible flickering during dimming transitions without increasing controller complexity.

A white organic light emitting device uses a hole transport layer with an energy level higher than the triplet excited state of the phosphorescent layer.

A current detection amplifier measures cathode current variations in electroluminescence elements during blanking periods.

An optoelectronic assembly compares currents in parallel OLED elements to identify electrical defects.

Non-uniform 1 nm to 10 nm insulating film eliminates interference fringes at boundaries while preserving electrical insulation.

Wireless burning detectors update LED lamp address memory, eliminating fixed manufacturing constraints and simplifying warehouse management.

A gate-body contact thin film transistor structure merges the body contact region with the semiconductor layer edge to reduce device footprint.

Chopper operational amplifier reverses input offset voltage polarity to cancel mismatch errors, ensuring uniform brightness in parallel LED arrays.

A reference voltage regulating circuit adjusts its output to maintain stable constant current operation in LED drivers.

A DC-DC converter adjusts PWM switching frequency based on sensed driving current to minimize energy loss.

Segmented light emitting units separated by charge generating layers balance luminance and lifespan while lowering driving voltage.

Porous ceramic light-converting elements minimize correlated color temperature variation across viewing angles while maintaining high package gain.

An organic buffer layer bridges inkjet and deposition light emitting layers, resolving interface defects that reduce device lifetime.

Incorporating a saturated straight chain hydrocarbon into the light-emitting layer resolves the trade-off between high efficiency and low driving voltage.

Composite indium phosphide quantum dots with tailored shell layers resolve the toxicity versus color purity trade-off, delivering DCI standard compliance.

A light-transmitting layer with a refractive index higher than air sits between flexible display panels to reduce reflection and improve light extraction.

A wet coating organic electroluminescent composition uses unpolymerized phosphorescent and charge transport materials to facilitate efficient charge injection.

A photo diode integrated into an organic light emitting device uses a reflective film to capture external light for luminance control.