Matrix-addressed type display device

Claim 1

A matrix-addressed type display device comprising: a transparent substrate; a drain electrode; a plurality of gate electrodes formed on a surface of said transparent insulating substrate, said gate electrodes being positioned in parallel with each other; a plurality of source electrodes formed on a surface of said transparent insulating substrate, said source electrodes being positioned in parallel with each other and crossing said gate electrodes; a thin-film transistor formed in a region where a gate electrode and a source electrode cross each other; a transparent pixel electrode formed in said region and connected to said thin-film transistor; a transparent inner bottom electrode positioned between said transparent insulating substrate and said transparent pixel electrode; a transparent dielectric film positioned between said transparent inner bottom electrode and said transparent pixel electrode, said transparent dielectric film having a first contact hole for connecting said transparent inner bottom electrode to a bottom region of said gate electrode; and a gate insulating film formed on said gate electrode paths; wherein said gate electrode is formed on a different plane than said transparent inner bottom electrode; said transparent pixel electrode being connected to said drain electrode through a second contact hole.

Claim 18

A method of charging a capacitor in a display apparatus with a transistor and a separate electrode, the capacitor formed of a bottom transparent electrode, a top transparent electrode and a dielectric film interposed therebetween, the top transparent electrode separated from said transistor by at least a gate dielectric film, the method comprising: (a) applying a first voltage to a control electrode in order to turn on the transistor; (b) applying a second larger voltage to said top transparent electrode with an output of the transistor through a contact hole formed in the gate dielectric film, in response to the application of a first voltage in step (a); and (c) applying a third potential to said bottom transparent electrode with the separate electrode through a contact hole formed in the dielectric film.

Claim 19

A method of charging a capacitor in a display apparatus with a transistor and a separate electrode, the capacitor formed of a bottom transparent electrode, a top transparent electrode and a dielectric film interposed therebetween, the top transparent electrode separated from said transistor by at least a gate dielectric film, the method comprising: (a) applying a first voltage to a control electrode in order to turn on the transistor; (b) applying a second larger voltage to said top transparent electrode with an output of the transistor through a contact hole formed in the gate dielectric film, in response to the application of a first voltage in step (a); and (c) applying a third potential to said bottom transparent electrode with the separate electrode through a contact hole formed in the dielectric film.

Claim 20

A method of making a matrix addressed type display device, comprising the steps of: forming a bottom transparent electrode on a substrate; forming a dielectric film over the bottom transparent electrode and the substrate; forming a contact hole in the dielectric film over the bottom transparent electrode; forming a first voltage electrode on the dielectric film and over the contact hole, connecting the first voltage electrode to the bottom transparent electrode; forming a second voltage electrode on the dielectric film, on a different plane than the bottom transparent electrode; forming a top transparent electrode over the dielectric film; forming an insulating layer to over any exposed portions of the first voltage electrode, the second voltage electrode, the dielectric film and the top transparent electrode; forming a second contact hole in the insulating layer over the top transparent electrode; and forming a transistor having an output connected to the top transparent electrode through the second contact hole, the transistor having the second voltage electrode as a control input.

Claim 21

A method of making a matrix addressed type display device, comprising the steps of: forming a bottom transparent electrode on a substrate; forming a dielectric film over the bottom transparent electrode and the substrate; forming a contact hole in the dielectric film over the bottom transparent electrode; forming a first voltage electrode on the dielectric film and over the contact hole, connecting the first voltage electrode to the bottom transparent electrode; forming a second voltage electrode on the dielectric film, on a different plane than the bottom transparent electrode; forming a top transparent electrode over the dielectric film; forming an insulating layer to over any exposed portions of the first voltage electrode, the second voltage electrode, the dielectric film and the top transparent electrode; forming a second contact hole in the insulating layer over the top transparent electrode; and forming a transistor having an output connected to the top transparent electrode through the second contact hole, the transistor having the second voltage electrode as a control input.