Display apparatus
AssigneeFujitsu Hitachi Plasma Display Limited
InventorsAyahito Kojima, Shigeki Kameyama, Hirohito Kuriyama, Yoshikazu Kanazawa, Toshio Ueda
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Abstract
A display apparatus, that can prevent thermal destruction and burning with a simple structure, has been disclosed. In the apparatus it is judged that there is possibility of a pattern, whose area with high brightness is small, being displayed frequently, when a state in which the total light emission pulse number remains large occurs with high frequency, and if such a state is detected, the total light emission pulse number (sustain frequency) is reduced to prevent the thermal destruction and burning.
Claims14
A display apparatus, comprising:
- X electrodes and Y electrodes composing plural cells;
- an X side common driver for applying sustaining pulses to said X electrodes, and a Y side common driver for applying sustaining pulses to the Y electrodes with a total number of the sustaining pulses having a first value;
- and
- a control part setting the total number of sustaining pulses in a display frame to a second value decreased from the first value when a first predetermined time has elapsed in a first state where said total number of sustaining pulses is over the first value.
A display apparatus, comprising:
- X electrodes and Y electrodes composing plural cells;
- an X side common driver for applying sustain pulses to said X electrodes, and a Y said common driver for applying sustain pulses to said X side common driver and said Y said common driver with a total number of the sustaining pulses having a first value;
- and
- a control part decreasing a total number of sustaining pulses in a display frame when a first state, in which said total number of sustaining pulses is over the first value and a gradation scale is over a gradation threshold value, lasts more than the first predetermined time.
Dependencies are inferred from the claim text.