# US 2014/0152924 A1 · Stereoscopic image display device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0152924 A1 - Document ID: US20140152924A1 - Status: Published application - Kind: A1 - Application number: 14/095,001 - Filed: 2013-12-03 - Published: 2014-06-05 - Earliest claimed: 2012-12-04 - Assignees: LG Display Co., Ltd. - Applicants: LG Display Co., Ltd. - Inventors: A Ra Yoon; Sung Woo Kim - Web page: https://patentgrep.com/patent/US20140152924A1 ## CPC - G02B 30/25: using polarisation techniques - G02B 30/27: involving lenticular arrays - G02B 30/28: involving active lenticular arrays - G02F 1/133526: {Lenses, e.g. microlenses or Fresnel lenses} - G02F 1/13471: {in which all the liquid crystal cells or layers remain transparent, e.g. FLC, ECB, DAP, HAN, TN, STN, SBE-LC cells (G02F1/13475 takes precedence)} - G02F 1/1334: based on polymer dispersed liquid crystals, e.g. microencapsulated liquid crystals - G02F 2203/07: Polarisation dependent - G02F 2203/62: Switchable arrangements whereby the element being usually not switchable - G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS - G02F: OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS ## Abstract A stereoscopic image display device that enables 2D/3D image output conversion includes a display panel configured to display an image and a polarization lens panel disposed on the display panel and configured to transmit as-is or refract light supplied from the display panel according to an image display mode. The polarization lens panel includes: first and second substrates; a lower electrode formed on the first substrate; an upper electrode formed on the second substrate; and a polymer liquid crystal layer formed of a polymer liquid crystal in which a polymer and a liquid crystal are combined, and disposed between the lower electrode and the upper electrode. ## Claims ### Claim 1 A stereoscopic image display device comprising: a display panel configured to display an image; and a polarization lens panel disposed on the display panel, and configured to transmit light supplied from the display panel according to an image display mode, wherein the polarization lens panel comprises: first and second substrates; a lower electrode formed on the first substrate; an upper electrode formed on the second substrate; and a polymer liquid crystal layer of a polymer liquid crystal in which a polymer and a liquid crystal are combined, disposed between the lower electrode and the upper electrode. ### Claim 2 A stereoscopic image display device comprising: a display panel configured to display an image; a polarization lens panel disposed on the display panel, and configured to transmit light supplied from the display panel according to an image display mode; and a polarization lens control panel disposed between the display panel and the polarization lens panel, and configured to control a polarization state of the light incident from the display panel, wherein the polarization lens control panel comprises: first and second substrates; a lower electrode formed on the first substrate; an upper electrode formed on the second substrate; and a polymer liquid crystal layer formed of a polymer liquid crystal in which a polymer and a liquid crystal are combined, and disposed between the lower electrode and the upper electrode. ### Claim 3 A stereoscopic image display device comprising: a display panel configured to display an image; and a polarization lens integration panel disposed on the display panel, and configured to transmit light incident from the display panel according to an image display mode, wherein the polarization lens integration panel comprises: first to third substrates; a lower electrode on the first substrate; an upper electrode on the second substrate; a polymer liquid crystal layer of a polymer liquid crystal in which a polymer and a liquid crystal are combined, disposed between the lower electrode and the upper electrode; and a liquid crystal layer formed of a material having an optical anisotropy, and disposed between the second and third substrates. ### Claim 4 (depends on 1) The stereoscopic image display device of claim 1, wherein the polymer liquid crystal layer has a convex lens shape or a Fresnel lens shape. ### Claim 5 (depends on 1) The stereoscopic image display device of one of claim 1, wherein an alignment direction of the liquid crystal of the polymer liquid crystal layer is changed according to whether a voltage is applied. ### Claim 6 (depends on 5) The stereoscopic image display device of claim 5, wherein, when the voltage is not applied, a short-axis of the liquid crystal is aligned in the same direction as a polarization direction of the light incident from the display panel, and when the voltage is applied, a long-axis of the liquid crystal is aligned in the same direction as a polarization direction of the light incident from the display panel. ### Claim 7 (depends on 1) The stereoscopic image display device of one of claim 1, wherein an alignment state of the liquid crystal of the polymer liquid crystal layer is one of a twisted nematic (TN) mode, an in-plane switching (IPS) mode, and a vertical alignment (VA) mode. ### Claim 8 (depends on 1) The stereoscopic image display device of one of claim 1, wherein molecules of the liquid crystal are aligned in a certain direction by irradiating polarization ultraviolet (UV) onto the liquid crystal, thereby forming the polymer liquid crystal layer. ### Claim 9 (depends on 1) The stereoscopic image display device of one of claim 1, wherein a rubbing direction of the polymer liquid crystal layer is the same as a polarization direction of the light incident from the display panel. ### Claim 10 (depends on 1) The stereoscopic image display device of claim 1, wherein the polymerization lens panel further comprises a refractive layer disposed on the polymer liquid crystal layer, and configured to have the same refractive index as a short-axis refractive index of the liquid crystal comprised in the polymer liquid crystal layer. ### Claim 11 (depends on 1) The stereoscopic image display device of one of claim 1, wherein each of the first and second substrates is formed of a film of a transparent material capable of transmitting the light. ### Claim 12 (depends on 3) The stereoscopic image display device of claim 3, wherein the liquid crystal layer has one of a concave lens shape, a convex lens shape or a Fresnel lens shape. ### Claim 13 (depends on 3) The stereoscopic image display device of claim 3, wherein the liquid crystal layer comprises a compound of the liquid crystal and reactive mesogen (RM).