Electroluminescent Light Sources TRIZ Cases

A tunable tandem OLED uses segmented light units to adjust color temperature and luminance via individual electrical control.

A driver circuit senses output voltage to control the converter duty cycle for steady LED current.

Inclined microprisms redirect light in an OLED resonator to maintain consistent luminous intensity when the device is physically tilted.

Parallel arcing protection circuit extinguishes electrical arcs via a current loop, preventing damage from poor soldering and high voltage.

A white LED uses polymeric resin containing dissolved organic phosphors and dispersed inorganic phosphors to create uniform light emission.

A display substrate uses cathode windows in an insulating layer to connect shared cathode lines to individual display unit cathodes.

Segmented resin frame prevents module adhesion during transport while maintaining light reflection efficiency and heat dissipation.

A buck converter regulates LED current by sensing voltage across the switch on-resistance during the on-time period.

Segmented holding devices with feedback control stabilize the hold voltage, reducing ripples in portable electronic displays.

Dynamic adjustment of ramping signal slopes and on-time periods improves conversion efficiency, power factor, and reduces total harmonic distortion.

Segmenting the OLED electrode system with an absorption layer minimizes voltage drops and simplifies organic emission layer removal.

Modular power supply circuit integrates surge, thermal, and open-circuit protection to reduce redesign time while maintaining reliability.

Asymmetric blue subpixel sizing compensates for vapor deposition defects, preventing color mixing while maintaining high resolution.

Replacing black matrix absorption with a scattering partition preserves pixel definition while boosting display light output.

Segmented circuit patterns create impedance to block WWAN band interference while maintaining signal integrity.

A switching converter adjusts capacitor charge speed using a discharge circuit to control start-up timing.

Phase-shifted parallel boosting circuits eliminate stroboscopic effects and remove large smoothing capacitors.

Dual-temperature metakaolin controls geopolymerization kinetics, resolving the trade-off between rapid hardening and fire resistance in cable accessories.

Modular parallel LED circuits integrate local components to resolve scalability trade-offs while maintaining consistent light output.

A multi-unit organic electroluminescent element increases color temperature with luminance to maintain comfort, eliminating the need for multiple product types.

Modified strontium oxyorthosilicate phosphors incorporate divalent metal ions to resist atmospheric humidity and extend LED lifetime.

A switch control circuit detects line openings using sense voltage comparisons to automatically turn off a protection switch.

Third electrode unit detects electric field changes between conductive layers to enable accurate proximity sensing while reducing device thickness.

Applying optical filters only to light-emitting units achieves sharp spectrum peaks without reducing the translucency of adjacent transmitting regions.

A light emission control circuit synchronizes first and second switching elements to prevent inductor energy discharge during off-states.

A series-parallel circuit topology connects multiple organic EL panels to distribute current and maintain light output.

An emergency lighting system uses Power over Ethernet cables to transmit data and supply power to network components.

Segmented shunt resistors in a driver port enable selectable output currents, eliminating manual jumper configuration and reducing device complexity.

Shared conversion units manage voltage for turn signals and daytime running lamps, preventing detection errors from unstable input currents.

A driver circuit adjusts target current values based on regulator signals to optimize power usage.

Segmented stripe electrodes minimize voltage drops caused by single-body resistance, ensuring consistent light emission and image quality.

A dimmable solid state lighting apparatus uses an LED segment selection circuit to control current through multiple LED segments.

A circuit uses a charge pump and linear regulator to deliver power to multiple LED strings.

A light regulating apparatus uses feed forward compensation to generate control signals for precise load current regulation.

Merges light sources and color filters into a single panel structure, reducing device complexity while maintaining high luminance.

Combining PWM and CCR compensates for thermal wavelength shifts, stabilizing perceived color.

A lighting device modulates light with fluctuating periods to embed data while avoiding frequency blind spots in image capturing units.

A lighting apparatus detects terminal connection status to control illumination components automatically.

Segmented inorganic and organic layers block moisture and oxygen penetration to protect OLEDs from environmental damage.

Moving cathode wiring to a lower layer reduces resistance, enabling higher current supply while minimizing frame size and calorific value.

A dopant material with balanced electron donating and accepting moieties facilitates thermally activated delayed fluorescence in the emitting layer.

Merging adhesive and phosphor layers simplifies manufacturing while high refractive index boosts light extraction efficiency.

A smart LED lighting device integrates a wireless communication unit with a projection lens to transmit video data directly from the housing.

A semiconductor substrate integrates doped regions and light-emitting diodes to merge electronic circuit functions directly with the optical components.

A subtractor circuit removes voltage offsets from dimming signals to enable precise LED brightness control.

A capacitive boost circuit with three switches regulates inductor current and output voltage through controlled duty cycles.

Reducing copper wiring area in red pixel regions minimizes long wavelength reflection, preventing screen coloring while maintaining high aperture ratios.

Tuning HOMO and LUMO levels of ruthenium organometallic compounds resolves the trade-off between manufacturing simplicity and device lifespan.

Zener diode coupling synchronizes BJT switching to eliminate harmonics from asynchronous sub-circuit events.

Differential series bias resistors protect phototriac couplers from damage during faults, avoiding expensive high-power components.