Liquid crystal display device

A liquid crystal display device, comprising:

• a first substrate including a transmissive electrode;
• a second substrate including a reflective electrode;
• a liquid crystal layer interposed between the first substrate and the second substrate and including liquid crystal molecules which exhibit negative dielectric anisotropy and are aligned substantially vertically to surf aces of the f irst substrate and the second substrate when no voltage is applied;
• a polarizer provided on a surface of the f irst substrate which is opposite to the liquid crystal layer;
• and a λ/4 wave plate provided between the polarizer and the liquid crystal layer,
• wherein a slower axis of the λ/4 wave plate and a transmission axis of the polarizer make an angle of about 45 degrees.

A liquid crystal display device, comprising:

• a first substrate;
• a second substrate;
• a liquid crystal layer interposed between the first substrate and the second substrate and including liquid crystal molecules which exhibit negative dielectric anisotropy and are aligned substantially vertically to surfaces of the first substrate and the second substrate when no voltage is applied;
• a first polarizer provided on a surface of the first substrate which is on the opposite side to the liquid crystal layer;
• a second polarizer provided on a surface of the second substrate which is on the opposite side to the liquid crystal layer;
• a first λ/4 wave plate provided between the first polarizer and the liquid crystal layer;
• and
• a second λ/4 wave plate provided between the second polarizer and the liquid crystal layer, wherein a plurality of pixel areas are provided for display,
• the first substrate includes at least one transmissive electrode, and the second substrate includes a reflective electrode region and a transmissive electrode region in correspondence with each of the plurality of pixel areas, and
• slower axes of the first λ/4 wave plate and the second λ/4 wave plate are in an identical direction and make an angle of about 45 degrees with each of transmission axes of the first polarizer and the second polarizer.

A liquid crystal display device, comprising:

• a first substrate;
• a second substrate;
• and
• a liquid crystal layer interposed between the first substrate and the second substrate,
• wherein a plurality of pixel areas are provided for display, each of the plurality of pixel areas having a reflective region for performing display using reflected light and a transmissive region for performing display using transmitted light,
• the first substrate includes a counter electrode in the vicinity of the liquid crystal layer,
• the second substrate includes, in the vicinity of the liquid crystal layer, a plurality of gate lines, a plurality of source lines perpendicular to the plurality of gate lines, a plurality of switching elements provided in the vicinity of intersections of the plurality of gate lines and the plurality of source lines, a first conductive layer having a high light transmission efficiency, and a second conductive layer having a high light reflection efficiency, the first conductive layer and the second conductive layer being connected to each of the switching elements, connected to each other, and being provided in each of the pixel areas.

A method for producing a liquid crystal display device, including

• a first substrate;
• a second substrate;
• and
• a liquid crystal layer interposed between the first substrate and the second substrate,
• wherein a plurality of pixel areas are provided for display, each of the plurality of pixel areas having a reflective region for performing display using reflected light and a transmissive region for performing display using transmitted light,
• the first substrate includes a counter electrode in the vicinity of the liquid crystal layer,
• the second substrate includes, in the vicinity of the liquid crystal layer, a plurality of gate lines, a plurality of source lines perpendicular to the plurality of gate lines, a plurality of switching elements provided in the vicinity of intersections of the plurality of gate lines and the plurality of source lines, a first conductive layer having a high light transmission efficiency, a second conductive layer having a high light reflection efficiency, the first conductive layer and the second conductive layer being connected to each of the switching elements, connected to each other, and being provided in each of the pixel areas, and an insulating layer provided between the first conductive layer and the second conductive layer, the method comprising the steps of:
• forming the first conductive layer on a plate;
• forming the insulating layer at least on the first conductive layer;
• forming the second conductive layer on the insulating layer;
• and
• partially removing the second conductive layer formed on the first conductive layer.