| Patent application number | Description | Published |
|---|
| 20080290806 | Cathode potential control device, self-luminous display device, electronic equipment and cathode potential control method - Disclosed herein is a cathode potential control device for controlling a common cathode potential applied to a self-luminous display panel adapted to drive and control the light emission status of each of the pixels by active matrix driving, the cathode potential control device including: a cathode potential determination section adapted to read a cathode potential level from a table memory according to a current panel temperature, the cathode potential level being associated with a panel temperature so as to cancel the temperature dependent characteristic of a voltage which develops between anode and cathode electrodes of a self-luminous element during light emission, the level causing a drive transistor of the self-luminous element to operate in the saturation region; and a cathode potential application section adapted to develop a cathode potential associated with the determined cathode potential level and supply the potential to a common cathode electrode of the self-luminous display panel. | 11-27-2008 |
| 20080297055 | Cathode potential controller, self light emission display device, electronic apparatus, and cathode potential controlling method - A cathode potential controller for controlling a common cathode potential applied to a self light emission type display panel in which an emission state of each of pixels is driven and controlled in accordance with an active matrix drive system, the cathode potential controller including: a self light emitting element; a constant current source; an electrode-to-electrode voltage measuring portion; a cathode potential determining portion; and a cathode potential applying portion. | 12-04-2008 |
| 20090079678 | Display device and display driving method - A display device includes a display panel unit configured to include pixel circuits in each of which an organic electroluminescence device is used as a light emitting device and is driven to emit light with luminance dependent upon a voltage difference between a signal value voltage of an input display data signal and a signal amplitude reference voltage. The display device further includes: a voltage controller configured to carry out grayscale value detection for a display data signal to be supplied to the display panel unit in every predetermined period, and create voltage control information of the signal amplitude reference voltage by using a detected grayscale value; and a signal amplitude reference voltage changer configured to change a voltage value of the signal amplitude reference voltage to be supplied to the pixel circuits of the display panel unit, based on voltage control information created by the voltage controller. | 03-26-2009 |
| 20090079727 | Display device and display driving method - Disclosed herein is a display device including a display panel section; a panel temperature detecting section; a voltage change amount determining section; a signal amplitude reference voltage varying section; and a signal value reference voltage generating section. | 03-26-2009 |
| 20090153537 | Power Consumption Controller, Image Processor, Self-Luminous Display Apparatus, Elelcrtonic Equipment, Power Consumption Control Method and Computer Program - The prior art power consumption control techniques convert the video signal (gray level) in one way or another based on the estimated power consumption level. The present invention proposes a power consumption controller which includes (a) a power consumption calculation section which sequentially calculates the power consumption level of a self-luminous display device based on a video signal input from the beginning of each frame up to the time of calculation, (b) a power consumption status determination section which determines whether the calculated power consumption level exceeds a reference value for comparison by constantly comparing the two levels. If this is the case, the same section detects the timing at which the power consumption exceeds the reference value for comparison and (c) a peak brightness control section which controls the peak brightness of the self-luminous display device if the power consumption level exceeds the reference value for comparison based on the detected timing. | 06-18-2009 |
| 20100085285 | Display apparatus, display data processing device, and display data processing method - A display apparatus includes: an edge processing section extracting an edge component of a display data signal; a display data signal processing section changing the display data signal according to a level conversion signal and adding the edge component thereto; a level conversion signal generating section changing the level conversion signal according to the display data signal and a signal output from the display data signal processing section; and a display section performing a display operation according to the signal output from the display data processing section. | 04-08-2010 |
| 20100149164 | Display device, display data processing device, and display data processing method - A display device includes: an extraction unit extracting an edge component of a display data signal; an adder unit adding an edge component to the display data signal; a signal generation unit generating a control signal in accordance with the display data signal and an output signal of the adder unit; a correction unit carrying out correction processing on the edge component in accordance with the control signal and outputting the corrected edge component to the adder unit; and a display unit carrying out a display operation in accordance with the output signal of the adder unit. | 06-17-2010 |
| 20100182332 | By-Region Display Image Quality Controlling Device, Self-Luminous Display Device, and Computer Program - When an arbitrary position and an arbitrary size on a display screen are specified as an emphasized display region so as to be interlocked with a display content of an application program, only for another region part excluding the emphasized display region, power consumed by the region part is aggressively reduced and simultaneously image quality is aggressively lowered as compared with the emphasized display region. Thereby, visibility and reduction in power consumption can be surely made compatible with each other. | 07-22-2010 |
