Electroluminescent Light Sources TRIZ Cases

A triazine-based polymer enables solution coating of organic light-emitting device layers.

Surface modification adjusts metal work function to match adjacent layers, resolving charge trapping while sustaining high light extraction efficiency.

A solid state lighting apparatus integrates a rectifier circuit on the substrate to accept direct ac voltage input for chip-on-board LED sets.

Donor and acceptor layers enable hole injection without specific electrode work functions, widening material choices for efficient light emission.

Continuous organic emissive layers paired with selective color filters resolve shadow mask alignment issues for high resolution displays.

An intermediary current source calibrates the sense resistor value, enabling accurate microamp detection and reliable backlight regulation.

A soft-start circuit charges a capacitor intermittently using a current source synchronized with the pulse modulation signal.

Stacked light-emitting units with segmented spectral peaks resolve the trade-off between white light quality and low luminosity wavelength losses.

Aromatic amine derivative in the intermediate layer balances charge transport, preventing electron accumulation that shortens device life.

A composite cathode electrode merges transparent conductive oxide with a reflective metal layer to lower electrical resistance.

A polymer compound featuring specific constitutional units and crosslinkable groups enhances light emission.

A display device metal layer slit exposes a lower layer to reduce light reflection, enabling accurate organic layer positioning during ink-jet manufacturing.

Incorporating styryl-substituted triarylamine units into conjugated polymers improves photostability and efficiency while reducing operating voltage shifts.

Manufacturing method defines optimum aging duration when element structure and light-emitting layer luminance decrease rates correlate, stabilizing properties.

A manganese-free composite coating shields red-emitting phosphor cores, resolving color instability under high temperature and humidity conditions.

Opening angle configurations prevent metal film residues between parallel frame area wires, eliminating short-circuiting during flexible display bending.

A capacitive pre-converter adjusts primary DC voltage to a fixed intermediate level using PWM control and a microcontroller look-up table.

A light emitting element integrates multiple cells in series on one substrate to enable direct high-voltage operation.

Parallel capacitors buffer power supply fluctuations during LED switching, ensuring stable luminance and consistent color projection without mechanical wheels.

Varying insulating sheet thickness prevents wiring shorts at step portions while maintaining flexible display panel integrity.