Transflective liquid crystal display device with dual liquid crystal layer thickness and particular half wave plate angle

A transflective liquid crystal display (LCD) device, comprising:

• first and second substrates facing and spaced apart from each other;
• a first polarizer formed under the first substrate;
• a half wave plate and a second polarizer that are formed in series on the second substrate;
• a backlight device being adjacent to the first polarizer;
• a common electrode on a surface of the second substrate facing the first substrate;
• a pixel electrode formed on the first substrate and corresponding to each pixel, the pixel electrode is divided into a transmissive portion and a reflective portion;
• a liquid crystal layer interposed between the first and second substrates, wherein a thickness of the liquid crystal layer between the common electrode and the transmissive portion of the pixel electrode is more than 1.5 and less than 2.5 times larger than a thickness of the liquid crystal layer between the common electrode and the reflective portion of the pixel electrode;
• and, within a range of about 10 degrees to 17.5 degrees
• wherein a slow axis of the half wave plate is disposed at an angle “θ” from a transmissive axis of the second polarizer;
• and
• wherein a transmissive axis of the first polarizer is disposed at the angle “2θ” from the transmissive axis of the second polarizer.