| Patent application number | Description | Published |
|---|
| 20080219684 | IMAGE FORMING APPARATUS - An image forming apparatus is provided which is capable of forming higher-quality images by detecting a toner concentration with higher accuracy to attain appropriate toner supply and image density. A value obtained by adding a correction value based on a temperature, humidity, a print coverage, or the like to a developer concentration adjustment value is set as a control voltage value Vc which is to be inputted to a toner concentration sensor, and an output value of the toner concentration sensor is detected for each of process speeds. A difference between the output value detected and a value at reference process speed is calculated and based on the difference, a correction value is further calculated. Such another calculation of the correction value with use of the output value detected allows for highly accurate correction. | 09-11-2008 |
| 20090040422 | LIQUID CRYSTAL DISPLAY UNIT AND PORTABLE ELECTRONIC APPARATUS PROVIDED WITH IT - A liquid crystal display device including two liquid crystal display panels located back to back is made thinner. A liquid crystal display device includes first and second liquid crystal display panels located back to back. The liquid crystal display device further includes a light source provided to a side of a rear substrate of the first liquid crystal display panel, a light source provided to a side of a rear substrate of the second liquid crystal display panel, and a polarizing element provided between the first and second liquid crystal display panels. The rear substrate of the first liquid crystal display panel includes a light guide layer for directing light, incident on the rear substrate from the light source and propagating inside the rear substrate, toward the second liquid crystal display panel. The rear substrate of the second liquid crystal display panel includes a light guide layer for directing light, incident on the rear substrate from the light source and propagating inside the rear substrate, toward the first liquid crystal display panel. | 02-12-2009 |
| 20090110414 | IMAGE STABILIZING APPARATUS AND IMAGE FORMING APPARATUS - There is provided an image stabilizing apparatus which is capable of keeping a toner concentration and a printing density constant when, toner consumption is small, and further which is systematically simple. The image stabilizing apparatus comprises a control portion for controlling a toner replenishment amount in a toner replenishing apparatus depending on a toner concentration detected by a toner concentration sensor and a print coverage of a document detected by a print coverage detecting portion, and controlling, when the print coverage of the document detected by the print coverage detecting portion is less than a predetermined value and such documents continue, so as to discharge a predetermined amount of toner to the image bearing member by developing forcibly, and then replenish the same amount of toner as the predetermined amount by the toner replenishing apparatus. | 04-30-2009 |
| 20090256997 | Liquid Crystal Display Device - In a liquid crystal display device having a light diffuser, a desired luminance distribution is realized and displaying with a high contrast ratio across a broad angle range is performed. | 10-15-2009 |
| 20100265438 | DOUBLE SIDED LIQUID CRYSTAL DISPLAY UNIT AND PORTABLE ELECTRONIC APPARATUS COMPRISING A POLARIZING ELEMENT BETWEEN TWO LIQUID CRYSTAL DISPLAY PANELS - A liquid crystal display device including two liquid crystal display panels located back to back is made thinner. A liquid crystal display device includes first and second liquid crystal display panels located back to back. The liquid crystal display device further includes a light source provided to a side of a rear substrate of the first liquid crystal display panel, a light source provided to a side of a rear substrate of the second liquid crystal display panel, and a polarizing element provided between the first and second liquid crystal display panels. The rear substrate of the first liquid crystal display panel includes a light guide layer for directing light, incident on the rear substrate from the light source and propagating inside the rear substrate, toward the second liquid crystal display panel. The rear substrate of the second liquid crystal display panel includes a light guide layer for directing light, incident on the rear substrate from the light source and propagating inside the rear substrate, toward the first liquid crystal display panel. | 10-21-2010 |
| 20110063558 | LIQUID CRYSTAL DISPLAY DEVICE - The present invention provides a liquid crystal display device which is capable of achieving excellent wide-viewing-angle characteristics and rapid responsiveness, and is capable of displaying by a display mode which does not require operation for initial bend transition. The present invention relates to one embodiment of a liquid crystal display device including: two substrates at least one of which is transparent; and a p-type nematic liquid crystal disposed between the two substrates, the p-type nematic liquid crystal being aligned perpendicular to the surfaces of the two substrates when no voltage is applied, at least one of the two substrates having a comb-shaped electrode, and the comb-shaped electrode satisfying the relationship (S+1.7)/(S+L)≧0.7, wherein L represents an electrode width and S represents an electrode spacing. The present invention also relates to another embodiment of a liquid crystal display device wherein a pixel has a first region; and a second region which has a ratio S/L between the electrode width L and the electrode spacing S different from that of the first region. The present invention further relates to combination use of the aforementioned embodiments. | 03-17-2011 |
| 20110199570 | LIQUID CRYSTAL PANEL AND LIQUID CRYSTAL DISPLAY DEVICE - A liquid crystal panel ( | 08-18-2011 |
| 20110279762 | LIQUID CRYSTAL DISPLAY ELEMENT AND LIQUID CRYSTAL DISPLAY APPARATUS - An vertical alignment type liquid crystal display element ( | 11-17-2011 |
