Transmissive and reflective type liquid crystal display

A transmissive and reflective type LCD comprising:

• an LC cell including a first substrate, a second substrate having an inner surface that is arranged to face the first substrate, and a liquid crystal layer formed between the first substrate and the second substrate;
• a first polarizing plate formed on an outer surface of the first substrate;
• a second polarizing plate formed on an outer surface of the second substrate that oppositely faces the inner surface of the second substrate;
• a backlight arranged at a rear side of the first polarizing plate;
• and
• a transparent transflective film arranged between the first polarizing plate and the backlight and having a plurality of layers in which a first layer and a second layer having different refractivity indexes from each other are alternatively stacked,
• wherein the transmissive and reflective type LCD has a reflection light path along which a first incident light beam is incident into the LC cell from a front side of the LC cell, is reflected by the transflective film, and is outputted through the front side of the LC cell,
• and a transmission light path along which a second incident light beam is incident into the LC cell from a rear side of the LC cell, is transmitted through the transflective film, and is outputted through the front side of the LC cell.

A transmissive and reflective type LCD comprising:

• a first substrate on which a first transparent electrode is formed;
• a second substrate of which an inner surface is arranged so as to face the first substrate, the inner surface of the second substrate having a second transparent electrode thereon;
• a liquid crystal layer formed between the first substrate and the second substrate;
• a first polarizing plate formed on an outer surface of the first substrate;
• a second polarizing plate formed on an outer surface of the second substrate oppositely facing the inner surface of the second substrate;
• a backlight arranged at a rear side of the first polarizing plate;
• and
• a transparent transflective film arranged between the first polarizing plate and the backlight, said transparent transflective film having a plurality of layers in which a first layer and a second layer having different refractivity indexes from each other are alternatively stacked, the transparent transflective film partially reflecting and partially transmitting incident lights.

A transmissive and reflective type LCD comprising:

• a first substrate on which a switching element and a transparent pixel electrode connected to the switching element are formed;
• a second substrate of which an inner surface is arranged so as to face the first substrate, the inner surface of the second substrate having a transparent common electrode thereon;
• a liquid crystal layer formed between the first substrate and the second substrate;
• a first polarizing plate formed on an outer surface of the first substrate;
• a second polarizing plate formed on an outer surface of the second substrate oppositely facing the inner surface of the second substrate;
• a backlight arranged at a rear side of the first polarizing plate;
• and
• a transparent transflective film arranged between the first polarizing plate and the backlight, said transparent transflective film having a plurality of layers in which a first layer and a second layer having different refractivity indexes from each other are alternatively stacked, the transparent transflective film partially reflecting and partially transmitting incident lights.

A transmissive and reflective type LCD comprising:

• a first substrate including a gate line formed on an insulating substrate, a data line insulated from the gate line and arranged to intersect the gate line, and a pixel electrode electrically connected to the data line;
• a second substrate of which an inner surface is arranged so as to face the first substrate, the inner surface of the second substrate having a transparent common electrode thereon;
• a liquid crystal layer formed between the first substrate and the second substrate;
• a first polarizing plate formed on an outer surface of the first substrate;
• a second polarizing plate formed on an outer surface of the second substrate oppositely facing the inner surface of the second substrate;
• a backlight arranged at a rear side of the first polarizing plate;
• and
• a transparent transflective film arranged between the first polarizing plate and the backlight, said transparent transflective film having a plurality of layers in which a first layer and a second layer having different refractivity indexes from each other are alternatively stacked, the transparent transflective film partially reflecting and partially transmitting incident lights.

A transmissive and reflective type LCD comprising:

• a first substrate including i) a thin film transistor having a gate electrode formed on an insulating substrate, a gate insulating layer formed on the gate electrode and on the insulating substrate, an active pattern formed on the gate insulating layer to be disposed above the gate electrode, and a source electrode and a drain electrode separately formed on the active pattern each other, and ii) a pixel electrode electrically connected to one of the source electrode and the drain electrode;
• a second substrate of which an inner surface is arranged so as to face the first substrate, the inner surface of the second substrate having a transparent common electrode thereon;
• a liquid crystal layer formed between the first substrate and the second substrate;
• a first polarizing plate formed on an outer surface of the first substrate;
• a second polarizing plate formed on an outer surface of the second substrate oppositely facing the inner surface of the second substrate;
• a backlight arranged at a rear side of the first polarizing plate;
• and
• a transparent transflective film arranged between the first polarizing plate and the backlight, said transparent transflective film having a plurality of layers in which a first layer and a second layer having different refractivity indexes from each other are alternatively stacked, the transparent transflective film partially reflecting and partially transmitting incident lights.

A transmissive and reflective type LCD comprising:

• a first substrate including i) a thin film transistor having an active pattern formed on an insulating substrate, a gate insulating layer formed on the active pattern and on the insulating substrate, a gate electrode formed on the gate insulating layer to be disposed above the active pattern, an interinsulation layer formed on the gate electrode and the gate insulating layer, and a source electrode and a drain electrode separately formed on the interinsulation layer each other, and ii) a pixel electrode electrically connected to one of the source electrode and the drain electrode;
• a second substrate of which an inner surface is arranged so as to face the first substrate, the inner surface of the second substrate having a transparent common electrode thereon;
• a liquid crystal layer formed between the first substrate and the second substrate;
• a first polarizing plate formed on an outer surface of the first substrate;
• a second polarizing plate formed on an outer surface of the second substrate oppositely facing the inner surface of the second substrate;
• a backlight arranged at a rear side of the first polarizing plate;
• and
• a transparent transflective film arranged between the first polarizing plate and the backlight, said transparent transflective film having a plurality of layers in which a first layer and a second layer having different refractivity indexes from each other are alternatively stacked, the transparent transflective film partially reflecting and partially transmitting incident lights.

A transmissive and reflective type LCD comprising:

• a first substrate including i) a display cell array circuit formed on an insulating substrate, a plurality of data lines and a plurality of gate lines arranged in a matrix shape to intersect each other on the display cell array circuit, and ii) a gate driver circuit, formed adjacent to a first portion of the display cell array circuit, for driving the gate lines;
• a second substrate of which an inner surface is arranged so as to face the first substrate, the inner surface of the second substrate having a transparent common electrode thereon;
• a liquid crystal layer formed between the first substrate and the second substrate;
• a first polarizing plate formed on an outer surface of the first substrate;
• a second polarizing plate formed on an outer surface of the second substrate oppositely facing the inner surface of the second substrate;
• a backlight arranged at a rear side of the first polarizing plate;
• and
• a transparent transflective film arranged between the first polarizing plate and the backlight, said transparent transflective film having a plurality of layers in which a first layer and a second layer having different refractivity indexes from each other are alternatively stacked, the transparent transflective film partially reflecting and partially transmitting incident lights.