IMAGE DISPLAY APPARATUS AND IMAGE RECEIVING AND DISPLAYING APPARATUS

Abstract

The spacer comprises an insulating member and a plurality of electroconductive members each including a portion enveloped with the insulating member within a region sandwiched between a region on which the anode is disposed and the first substrate, and the plurality of electroconductive members are arranged such that the portions of the electroconductive members enveloped with the insulating member are spaced apart from each other in a direction along which the first and second substrates are opposed.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a partially cutaway perspective view of a display panel of an image display apparatus of the present invention.

FIGS. 2A, 2B and 2C and FIG. 13 are sectional views of the display panels with several types of spacers taken on line X-Z in FIG. 1.

FIG. 3 is a sectional view of the display panel taken on line Y-Z in FIG. 1.

FIG. 4 is a drawing showing an aspect of a short circuit in a conventional spacer.

FIG. 5 is a drawing showing another embodiment of the spacer of the present invention.

FIG. 6 is a drawing showing still another embodiment of the spacer of the present invention.

FIG. 7 is a drawing showing a further embodiment of the spacer of the present invention.

FIG. 8A is a drawing showing a production process of the spacer according to the present invention.

FIG. 8B is a drawing showing a production process of the spacer according to the present invention.

FIG. 8C is a drawing showing a production process of the spacer according to the present invention.

FIG. 8D is a drawing showing a production process of the spacer according to the present invention.

FIG. 9A is a drawing showing a production process of an electron source on a rear plate according to the present invention.

FIG. 9B is a drawing showing a production process of the electron source on the rear plate according to the present invention.

FIG. 9C is a drawing showing a production process of the electron source on the rear plate according to the present invention.

FIG. 9D is a drawing showing a production process of the electron source on the rear plate according to the present invention.

FIG. 10 is a drawing showing a voltage waveform used for a forming process of electron-emitting devices in an example of the present invention.

FIG. 11A is a drawing showing a production process of spacers of another embodiment according to the present invention.

FIG. 11B is a drawing showing a production process of the spacers of the another embodiment according to the present invention.

FIG. 11C is a drawing showing a production process of the spacers of the another embodiment according to the present invention.

FIG. 11D is a drawing showing a production process of the spacers of the another embodiment according to the present invention.

FIG. 12 is a block diagram showing constitution of an image receiving and displaying apparatus of the present invention.

Claims

1. An image display apparatus comprising: a first substrate provided with an electron-emitting device;a second substrate provided with an anode and a phosphor emitting light responsive to an irradiation with an electron emitted from the electron-emitting device; anda spacer disposed to support the first and second substrate between the first and second substrates, wherein the spacer comprises an insulating member and a plurality of electroconductive members each including a portion enveloped with the insulating member within a region sandwiched between a region on which the anode is disposed and the first substrate, and the plurality of electroconductive members are arranged such that the portions of the electroconductive members enveloped with the insulating member are spaced apart from each other in a direction along which the first and second substrates are opposed.

2. The image display apparatus according to claim 1 wherein the spacer comprises a high resistance film electrically connected between the plurality of electroconductive members, and the high resistance film is covered with the insulating member.

3. The image display apparatus according to claim 1, wherein a plurality of the spacers are disposed to sandwich the electron-emitting device.

4. The image display apparatus according to claim 1, wherein the insulating member has a resistivity of 1.0×108 ohm/m.

5. The image display apparatus according to claim 1, wherein an electric field calculated by dividing a potential difference between the anode and the electron-emitting device by a distance between the anode and the electron-emitting device is 1.0×107 V/m.

6. An image receiving and displaying apparatus comprising: the image display apparatus according to claim 1;a receiving circuit for receiving electively a video signal;an output circuit for generating an image signal based on the video signal received by the receiving circuit, and outputting to image signal to the image display apparatus.