Transflective type liquid crystal display device
AssigneeLG Display Co., Ltd.
InventorsHyeon Ho Son, Ku Hyun Park
Life of this patent
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Abstract
A transflective type LCD device including a unit pixel region divided into reflective and transmitting parts includes first and second substrates facing each other, a pixel electrode in the pixel region of first substrate, a reflective sheet in the reflective part of first substrate, a common electrode on the second substrate, at least one first open pattern for forming multi-domains, and the first open pattern in at least one of the pixel and common electrodes, and a plurality of second open patterns for inducing a fringe field, and the second open patterns in the reflective part of at least one of the pixel and common electrodes.
Claims7
A transflective liquid crystal device, comprising:
- a pixel electrode on a first substrate with a plurality of first openings for forming multi-domains, the plurality of first openings within a reflective part and a transmitting part of a pixel region, and a plurality of second openings for inducing a fringe field, the plurality of second openings within the reflective part of the pixel region excluding the transmitting part of a pixel region;
- a reflective sheet within only the reflective part of the pixel region;
- a common electrode on a second substrate facing the first substrate, the common electrode having a plurality of third openings within the reflective part of the common electrode for inducing a fringe field;
- and
- a liquid crystal layer between the first and second substrates,
- wherein the reflective and transmitting parts have the same cell gap, and the transmitting part has the operation properties of a retardation value (Δnd)=λ/2 and the reflective part has the operation properties of retardation value (Δnd)=λ/4 by the fringe field, wherein the Δn is a refracted index of the liquid crystal layer, and the n is a cell gap between the first and second substrates.
A transflective type LCD device including a unit pixel region divided into reflective and transmitting parts, comprising:
- first and second substrates facing each other;
- a pixel electrode in the pixel region of first substrate;
- a reflective sheet in only the reflective part of first substrate;
- a common electrode on the second substrate;
- a plurality of first open patterns for forming multi-domains, the first open patterns in the pixel electrode within the reflective part and the transmitting part of the pixel region;
- a plurality of second open patterns for inducing a fringe field, and the third open patterns in only the reflective part of the pixel region;
- a plurality of third open patterns for inducing a fringe field, and the third open patterns in only the reflective part of the common electrode;
- and
- a liquid crystal layer between the first and second substrates,
- wherein the reflective and transmitting parts have the same cell gap, and the transmitting part has the operation properties of a retardation value (Δnd)=λ/2 and the reflective part has the operation properties of retardation value (Δnd)=λ/4 by the fringe field, wherein the Δn is a retracted index of the liquid crystal layer, and the n is a cell gap between the first and second substrates.
Dependencies are inferred from the claim text.