Hitachi Displays, Ltd.
1,213Patents
998Active
1,213Granted
62Portfolio score
Filing activity: Apr 27, 2001 → May 22, 2013 · 808 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7495719B2 | Device capable of switching between an image display status and a mirror status, and an instrument disposed therewith | Physics | 190 | Expired |
| US7489374B2 | Liquid crystal display | Physics | 166 | Expired |
| US7067985B2 | Display device | Electricity | 110 | Expired |
| US7088409B2 | Liquid crystal display apparatus | Physics | 107 | Expired |
| US7362400B2 | Transreflective liquid crystal display panel having a wide viewing angle | Physics | 72 | Expired |
| US7614777B2 | Liquid crystal display device | Physics | 66 | Active |
| US7737517B2 | Display device | Electricity | 66 | Active |
| US7460103B2 | Liquid crystal display apparatus with luminance distribution calculating, backlight controller, and video correction to improve display contrast ratio | Physics | 64 | Active |
| US8325295B2 | Liquid crystal display device | Physics | 64 | Active |
| US7826006B2 | Display device | Physics | 53 | Active |
| US7518319B2 | LED lighting device and LCD device using the same | Emerging Cross-Sectional Technologies | 50 | Active |
| US7099091B2 | Display device | Electricity | 47 | Expired |
| US7372110B2 | Display with integral sound wave generation device | Electricity | 47 | Active |
| US7920223B2 | Display device | Physics | 45 | Active |
| US7605898B2 | Liquid crystal display device having rectangular-shaped pixel electrodes overlapping with comb-shaped counter electrodes in plan view | Physics | 43 | Active |
| US7113164B1 | Liquid crystal display device | Physics | 41 | Expired |
| US7847912B2 | LCD device with plural fluorescent tube backlight for a rectangular curved display surface of a radius of from two to four times as large as the length of the short-side of the rectangular display region | Physics | 41 | Active |
| US7196463B2 | Emissive flat panel display having electron sources with high current density and low electric field strength | Electricity | 40 | Expired |
| US7661844B2 | Illuminating device and liquid-crystal display device using the same | Electricity | 39 | Active |
| US8059235B2 | Liquid crystal display | Physics | 37 | Active |
| US7905646B2 | Lighting unit and display equipment provided therewith | Physics | 36 | Active |
| US7030556B2 | Light emitting device with an incorporated optical wavelight layer | Electricity | 36 | Expired |
| US8310641B2 | Liquid crystal display device, display device and manufacturing method thereof | Physics | 36 | Active |
| US8248549B2 | Liquid crystal display device, display device and manufacturing method thereof | Physics | 35 | Active |
| US8203661B2 | Liquid crystal display device, display device and manufacturing method thereof | Physics | 35 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.