Image display and method of driving image display

Abstract

An image display in which power consumption of thin-film electron-source matrix is reduced. The thin-film electron-source matrix comprises a plurality of electron-source elements each of which has a structure including a lower electrode, an insulating layer, and an upper electrode formed in this order, and emits electrons from the upper-electrode surface when a voltage of positive polarity is applied to the upper electrode, a plurality of row electrodes each of which applies a driving voltage to the lower electrodes of the electron-source elements in a row direction among the electron source-elements, and a plurality of column electrodes each of which applies a driving voltage to the upper electrodes of the electron-source elements in a column direction among the electron-source elements. A row-electrode driving circuit that supplies the driving voltage to the row electrodes and a column-electrode driving circuit that supplies the driving voltage to the column electrodes to change the non-selected state of row electrodes and / or column electrodes to a high-impedance state.

Description

technical field [0001] The present invention relates to an image display device and a driving method of the image display device, and more particularly to an effective technique for an image display device using a thin film type electron source emitting electrons in a vacuum having an electrode-insulator-electrode structure. Background technique [0002] A thin-film electron source is an electron emission element that utilizes thermal electrons generated by applying a high voltage to an insulator. [0003] As a representative example, an MIM (Metal-Insulator-Metal) type electron source composed of a three-layer thin film structure of an upper electrode-insulating layer-lower electrode will be described below. [0004] Figure 13 It is a figure explaining the operation principle of the MIM electron source which is a representative example of a thin film type electron source. [0005] Apply a driving voltage between the upper electrode 11 and the lower electrode 13 so that wh...

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Problems solved by technology

[0045] However, in order to achieve lower power consumption, it is clear that it is effective to reduce the reactive power Pcol that increases with the application of data pulses.

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