LIQUID CRYSTAL DISPLAY DEVICE THAT INCLUDES BOTH A TRANSMISSIVE PORTION AND A REFLECTIVE PORTION

• US 20110228202A1
• Filed: 05/31/2011
• Published: 09/22/2011
• Est. Priority Date: 09/19/2006
• Status: Active Grant

• Current Assignee: Japan Display West Incorporated (Japan Display Incorporated)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Koma, Norio, Mitsui, Masashi
• Granted Patent: US 8,405,806 B2
• Time in Patent Office: Days
• US Class Current: 349/113
• CPC Class Codes: G02F 1/133753 with different alignment orientations or pretilt angles on a same surface, e.g. for grey scale or improved viewing angle
• CPC Class Codes: G02F 1/134309 characterised by their geometrical arrangement
• CPC Class Codes: G02F 1/134381 Hybrid switching mode, i.e. for applying an electric field with components parallel and orthogonal to the substrates
• CPC Class Codes: G02F 2203/09 transflective

Abstract

A liquid crystal display device includes, in sequence, a first substrate, a liquid crystal layer, and a second substrate. The first substrate, the liquid crystal layer, and the second substrate are disposed in a subpixel having a transmissive portion for performing transmissive display and a reflective portion for performing reflective display. The first substrate includes a first electrode and a second electrode. The second substrate includes a third electrode. The first electrode and the second electrode are disposed in the transmissive portion and at least the first electrode and the third electrode are disposed in the reflective portion. Alignment of the liquid crystal layer is controlled by an electric field occurring between the first electrode and the second electrode in the transmissive portion and by an electric field occurring between the first electrode and the third electrode in the reflective portion.

Claims

1-8. -8. (canceled)

9. A liquid crystal display device comprising:

a first substrate;

a liquid crystal layer; and

a second substrate,

wherein the first substrate, the liquid crystal layer, and the second substrate are disposed in a subpixel having a transmissive portion for performing transmissive display and a reflective portion for performing reflective display,

wherein the transmissive portion is of different type from the reflective portion.

10. The liquid crystal display device of claim 9, wherein the transmissive portion is of the FFS type and the reflective portion is of the ECB type.

11. The liquid crystal display device of claim 9, wherein the transmissive portion is of the IPS type and the reflective portion is of the ECB type.