Electrode structure, method for manufacturing electrode structure, liquid crystal display element, method for driving liquid crystal display element, and electronic equipment

A method for manufacturing an electrode structure, the electrode structure including

• a light reflection film,
• an insulating film formed on the light reflection film, and
• a transparent conductive film formed on the insulating film,
• the method comprising:
• a step of forming the light reflection film, the insulating film formed on the light reflection film, and the transparent conductive film formed on the insulating film;
• a step of dividing the transparent conductive film into pieces in a two-dimensional matrix at a predetermined pitch to form transparent pixel electrodes;
• and
• a step of forming vias penetrating the insulating film and the light reflection film and insulated from the light reflection film, each of the vias being used to connect a corresponding one of the transparent pixel electrodes to a corresponding one of wires formed in a lower layer underlying the light reflection film.

A liquid crystal display element comprising:

• a front panel;
• a back panel disposed opposite to the front panel;
• and
• a liquid crystal material layer sandwiched between the front panel and the back panel,
• wherein, on a substrate forming the back panel,
• an electrode structure is configured that includes
• a light reflection film,
• an insulating film formed on the light reflection film, and
• a transparent conductive film formed on the insulating film,
• the transparent conductive film is divided into pieces in a two-dimensional matrix at a predetermined pitch to form transparent pixel electrodes, and
• each of the transparent pixel electrodes is connected to a corresponding one of wires formed in a lower layer underlying the light reflection film, through a corresponding one of vias penetrating the insulating film and the light reflection film and insulated from the light reflection film.

A method for driving a liquid crystal display element, the liquid crystal display including

• a front panel,
• a back panel disposed opposite to the front panel, and
• a liquid crystal material layer sandwiched between the front panel and the back panel,
• on a substrate forming the back panel,
• an electrode structure being configured that includes
• a light reflection film,
• an insulating film formed on the light reflection film, and
• a transparent conductive film formed on the insulating film,
• the transparent conductive film being divided into pieces in a two-dimensional matrix at a predetermined pitch to form transparent pixel electrodes,
• each of the transparent pixel electrodes being connected to a corresponding one of wires formed in a lower layer underlying the light reflection film, through a corresponding one of vias penetrating the insulating film and the light reflection film and insulated from the light reflection film,
• wherein the light reflection film is connected to an electrode for voltage supply formed in a lower layer underlying the light reflection film, and
• when the liquid crystal display element is driven, the light reflection film is in any one of an electrically floating state, a state in which a voltage of an electrically positive polarity is applied to the light reflection film, or a state in which a voltage of an electrically negative polarity is applied to the light reflection film.

Electronic equipment comprising:

• a liquid crystal display element including
• a front panel,
• a back panel disposed opposite to the front panel, and
• a liquid crystal material layer sandwiched between the front panel and the back panel,
• wherein, on a substrate forming the back panel,
• an electrode structure is configured that includes
• a light reflection film,
• an insulating film formed on the light reflection film, and
• a transparent conductive film formed on the insulating film,
• the transparent conductive film is divided into pieces in a two-dimensional matrix at a predetermined pitch to form transparent pixel electrodes, and
• each of the transparent pixel electrodes is connected to a corresponding one of wires formed in a lower layer underlying the light reflection film, through a corresponding one of vias penetrating the insulating film and the light reflection film and insulated from the light reflection film.