Display apparatus and its control method
AssigneeToshiba Matsushita Display Technology Co., Ltd.
InventorNorio Nakamura
Life of this patent
Estimating the term…
Abstract
A display apparatus is provided which can perform display of high visibility with the load on a power supply for supplying power to display elements. A display screen is provided with a plurality of pixels arranged in an array. Each pixel includes a display element and a driving circuit for supplying the display element with a current corresponding to a video signal. A display state detection circuit detects the display state of the display screen twice or more within a one-frame period. A dimming circuit varies a current supply time to supply a current from the driving circuit to the display element, in accordance with an output from the display state detection circuit, and performs dimming control twice or more within a one-frame period.
Claims13
A display apparatus comprising:
- a display screen including a plurality of pixels, each of the pixels including a display element and a driving circuit, the display element being provided between a pair of opposing electrodes and including an optical layer having an optical characteristic thereof varied in accordance with an amount of current, the driving circuit supplying the display element with a current corresponding to a video signal;
- a display state detection circuit configured to detect a display state of the display screen twice or more within a one-frame period;
- and
- a dimming circuit configured to vary a current supply time to supply a current from the driving circuit to the display element, in accordance with an output from the display state detection circuit, the dimming circuit performing dimming control twice or more within a one-frame period.
A control method for a display apparatus, the display apparatus including a display screen which is provided with a plurality of pixels, each of the pixels including a display element and a driving circuit, the display element being provided between a pair of electrodes opposing each other and including an optical layer having an optical characteristic thereof varied in accordance with a current flowing between the electrodes, the driving circuit supplying the display element with a current corresponding to a video signal, comprising:
- a step of detecting a display state of the display screen twice or more within a one-frame period;
- and
- a step of varying a current supply time to supply a current from the driving circuit to the display element, in accordance with an output from the display state detection circuit, and performing dimming control twice or more within a one-frame period.
Dependencies are inferred from the claim text.