PLANAR SYSTEMS, INC.
🏢 View company profile →72Patents
8Active
72Granted
41Portfolio score
Filing activity: Apr 30, 1985 → Nov 27, 2018 · 1 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7021330B2 | Diaphragm valve with reliability enhancements for atomic layer deposition | Emerging Cross-Sectional Technologies | 364 | Expired |
| US5986628A | Field sequential color AMEL display | Physics | 128 | Expired |
| US7009663B2 | Integrated optical light sensitive active matrix liquid crystal display | Physics | 120 | Expired |
| US5652600A | Time multiplexed gray scale approach | Physics | 107 | Expired |
| US6248605A | Method of growing thin film electroluminescent structures | Chemistry; Metallurgy | 94 | Expired |
| US6947102B2 | Light sensitive display which senses decreases in light | Physics | 89 | Expired |
| US4963788A | Thin film electroluminescent display with improved contrast | Electricity | 80 | Expired |
| US6278423A | Active matrix electroluminescent grey scale display | Physics | 64 | Expired |
| US5504389A | Black electrode TFEL display | Emerging Cross-Sectional Technologies | 63 | Expired |
| US6831710B2 | Image sensor with photosensitive thin film transistors and dark current compensation | Electricity | 63 | Expired |
| US5793342A | Resonant mode active matrix TFEL display excitation driver with sinusoidal low power illumination input | Physics | 62 | Expired |
| US5712528A | Dual substrate full color TFEL panel with insulator bridge structure | Electricity | 60 | Expired |
| US5598059A | AC TFEL device having a white light emitting multilayer phosphor | Emerging Cross-Sectional Technologies | 57 | Expired |
| US6995743B2 | Light sensitive display | Physics | 57 | Expired |
| US7053967B2 | Light sensitive display | Physics | 56 | Expired |
| US5767623A | Interconnection between an active matrix electroluminescent display and an electrical cable | Electricity | 55 | Expired |
| US7372510B2 | Reflection resistant touch screens | Physics | 49 | Expired |
| US5877735A | Substrate carriers for electroluminescent displays | Physics | 49 | Expired |
| US7023503B2 | Image sensor with photosensitive thin film transistors | Electricity | 48 | Expired |
| US7408598B2 | Light sensitive display with selected interval of light sensitive elements | Physics | 44 | Expired |
| US5463279A | Active matrix electroluminescent cell design | Physics | 37 | Expired |
| US5426266A | Die bonding connector and method | Electricity | 37 | Expired |
| US4751427A | Thin-film electroluminescent device | Electricity | 36 | Expired |
| US5194027A | Solid seal for thin film electroluminescent display panels | Electricity | 35 | Expired |
| US4900584A | Rapid thermal annealing of TFEL panels | Electricity | 34 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.