Patent ID: 7450204

Claim:
A liquid crystal display comprising: a first substrate with alignment film having a first polarizer laminated on an outside surface, wherein the first polarizer faces a light source; a second substrate with alignment film having a second polarizer laminated on an outside surface, wherein the second polarizer faces an observer; a liquid crystal layer sandwiched between the first substrate and the second substrate; a positive birefringence uniaxial A-film with its optical axis parallel to the positive birefringence uniaxial A-film surface plane having a retardation value dΔn/λ between approximately 0.05 and approximately 0.25, where λ is the wavelength of incident light, d is the thickness of the positive birefringence uniaxial A-film and Δn=n e −n o is birefringence of the positive birefringence uniaxial A-film; and a negative birefringence uniaxial A-film with its optical axis parallel to the negative birefringence uniaxial A-film surface plane, wherein the negative birefringence uniaxial A-film is adjacent to the positive birefringence uniaxial A-film, wherein the positive birefringence uniaxial A-film and the negative birefringence uniaxial A-film are located between the first polarizer and the second polarizer laminated on one of the first and second substrates within the liquid crystal display without a polarizing beam splitter, and wherein the optical axis of the positive birefringence uniaxial A-film is approximately perpendicular to the optical axis of the negative birefringence uniaxial A-film.