# US 9,436,013 B2 · Reflective type naked-eye 3D display apparatus and manufacturing method thereof > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,436,013 B2 - Document ID: US9436013B2 - Status: Granted - Kind: B2 - Application number: 14/127,305 - Filed: 2012-12-13 - Published: 2015-08-06 - Granted: 2016-09-06 - Earliest claimed: 2012-07-27 - Assignees: Boe Technology Group Co., Ltd. - Applicants: Boe Technology Group Co., Ltd. - Inventors: Wenbo Li; Yanbing Wu - Web page: https://patentgrep.com/patent/US9436013B2 ## CPC - G02B 30/30: involving parallax barriers - G02B 30/25: using polarisation techniques - G02F 1/133512: {Light shielding layers, e.g. black matrix (G02F1/136209 takes precedence)} - G02F 1/133528: {Polarisers} - G02F 1/133553: {Reflecting elements (associated to illuminating devices G02F1/133605)} - G02F 1/13363: Birefringent elements, e.g. for optical compensation - G02F 1/13475: {in which at least one liquid crystal cell or layer is doped with a pleochroic dye, e.g. GH-LC cell (G02F1/13476 takes precedence)} - G02F 1/137: characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering - G02B 30/27: involving lenticular arrays - G02F 1/133638: {Waveplates, i.e. plates with a retardation value of lambda/n} - 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 reflective type naked-eye 3D display apparatus and manufacturing method thereof are disclosed and the reflective type naked-eye 3D display apparatus comprises: a liquid crystal display panel (2). The reflective type naked-eye 3D display apparatus further comprises: a polarizing filter structure (1) disposed on the liquid crystal display panel (2), the polarizing filter structure (1) may comprise different regions where linear polarizing lights having different polarizing states are transmitted; a reflective layer structure (3) disposed under the liquid crystal display panel (2), the reflective layer structure (3) may comprise different regions where linear polarizing light of a preset direction is reflected or transmitted. The reflective type naked-eye 3D display apparatus can achieve a naked-eye type 3D displaying on the reflective type liquid crystal display panel. ## Claims ### Claim 1 A reflective type naked-eye 3D display apparatus, comprising: a liquid crystal display panel; wherein the reflective naked-eye 3D display apparatus further comprises: a polarizing filter structure disposed on the liquid crystal display panel, wherein the polarizing filter structure comprises different regions where linear polarizing lights having different polarizing states are transmitted; and a reflective layer structure disposed under the liquid crystal display panel, wherein the reflective layer structure comprises different regions where linear polarizing light of a preset direction is reflected or transmitted, wherein the reflective layer structure further comprises at least one third region and at least one fourth region, and each sub pixel comprises one third region and one fourth region, the third region of the reflective layer structure is constituted by a ¼ wave plate and a reflective plate; the fourth region of the reflective layer structure reflects the linear polarizing light of the preset direction and transmits the linear polarizing light perpendicular to the preset direction. ### Claim 2 (depends on 1) The reflective type naked-eye 3D display apparatus according to claim 1, wherein the reflective naked-eye 3D display apparatus further comprises: a light absorbing layer disposed under the reflective layer structure. ### Claim 3 (depends on 2) The reflective type naked-eye 3D display apparatus according to claim 2, wherein the polarizing filter structure comprises: a first substrate and a second substrate disposed to be opposite to each other; and liquid crystal molecules between the first substrate and the second substrate and formed of a Nematic phase liquid crystal and a dichromatism dye, wherein an original orientation of the liquid crystal molecules is parallel to the first substrate, and after applying an electric field to the polarizing filter structure, the orientation of the liquid crystal molecules is vertical to the first substrate. ### Claim 4 (depends on 1) The reflective type naked-eye 3D display apparatus according to claim 1, wherein the light absorbing layer comprises black organic material, black inorganic material or black metal. ### Claim 5 (depends on 4) The reflective type naked-eye 3D display apparatus according to claim 4, wherein the polarizing filter structure comprises: a first substrate and a second substrate disposed to be opposite to each other; and liquid crystal molecules between the first substrate and the second substrate and formed of a Nematic phase liquid crystal and a dichromatism dye, wherein an original orientation of the liquid crystal molecules is parallel to the first substrate, and after applying an electric field to the polarizing filter structure, the orientation of the liquid crystal molecules is vertical to the first substrate. ### Claim 6 (depends on 5) The reflective type naked-eye 3D display apparatus according to claim 5, wherein the polarizing filter structure comprises at least one first region and at least one second region, and each sub pixel comprises one first region and one second region, the orientation of the liquid crystal molecules of the first region is parallel to the first substrate, and the orientation of the liquid crystal molecules of the second region is vertical to the first substrate. ### Claim 7 (depends on 1) The reflective type naked-eye 3D display apparatus according to claim 1, wherein the polarizing filter structure comprises: a first substrate and a second substrate disposed to be opposite to each other; and liquid crystal molecules between the first substrate and the second substrate and formed of a Nematic phase liquid crystal and a dichromatism dye, wherein an original orientation of the liquid crystal molecules is parallel to the first substrate, and after applying an electric field to the polarizing filter structure, the orientation of the liquid crystal molecules is vertical to the first substrate. ### Claim 8 (depends on 7) The reflective type naked-eye 3D display apparatus according to claim 7, wherein the polarizing filter structure comprises at least one first region and at least one second region, and each sub pixel comprises one first region and one second region, the orientation of the liquid crystal molecules of the first region is parallel to the first substrate, and the orientation of the liquid crystal molecules of the second region is vertical to the first substrate. ### Claim 9 (depends on 1) The reflective type naked-eye 3D display apparatus according to claim 1, wherein the fourth region of the reflective layer structure comprises a nano-scale wire grid polarizer; or the fourth region of the reflective layer structure comprises a cholesteric phase liquid crystal display panel; or the fourth region of the reflective layer structure comprises a 3M selectively reflective film. ### Claim 10 A manufacturing method of manufacturing a reflective type naked-eye 3D display apparatus, comprising: forming a liquid crystal display panel; the manufacturing method further comprises: forming a polarizing filter structure on the liquid crystal display panel, wherein the polarizing filter structure comprises different regions where linear polarizing lights having different polarizing states are transmitted; and forming a reflective layer structure under the liquid crystal display panel, wherein the reflective layer structure comprises different regions and linear polarizing light of a preset direction is reflected, and wherein the reflective layer structure further comprises at least one third region and at least one fourth region, and each sub pixel comprises one third region and one fourth region, the third region of the reflective layer structure is constituted by a ¼ wave plate and a reflective plate; the fourth region of the reflective layer structure reflects the linear polarizing light of the preset direction and transmits the linear polarizing light perpendicular to the preset direction. ### Claim 11 (depends on 10) The manufacturing method of the reflective type naked-eye 3D display apparatus of claim 10, wherein the manufacturing method further comprises: forming a light absorbing layer under the reflective layer structure. ### Claim 12 A reflective type naked-eye 3D display apparatus, comprising: a liquid crystal display panel; wherein the reflective naked-eye 3D display apparatus further comprises: a polarizing filter structure disposed on the liquid crystal display panel, wherein the polarizing filter structure comprises different regions where linear polarizing lights having different polarizing states are transmitted; and a reflective layer structure disposed under the liquid crystal display panel, wherein the reflective layer structure comprises different regions where linear polarizing light of a preset direction is reflected or transmitted, and the reflective layer structure covers an entire surface of the liquid crystal display panel; wherein the reflective layer structure comprises at least one third region and at least one fourth region, and each sub pixel comprises one third region and one fourth region, the third region of the reflective layer structure is constituted by a ¼ wave plate and a reflective plate; the fourth region of the reflective layer structure reflects the linear polarizing light of the preset direction and transmits the linear polarizing light perpendicular to the preset direction. ### Claim 13 (depends on 12) The reflective type naked-eye 3D display apparatus according to claim 12, wherein the reflective naked-eye 3D display apparatus further comprises: a light absorbing layer disposed under the reflective layer structure. ### Claim 14 (depends on 12) The reflective type naked-eye 3D display apparatus according to claim 12, wherein the light absorbing layer comprises black organic material, black inorganic material or black metal. ### Claim 15 (depends on 12) The reflective type naked-eye 3D display apparatus according to claim 12, wherein the polarizing filter structure comprises: a first substrate and a second substrate disposed to be opposite to each other; and liquid crystal molecules between the first substrate and the second substrate and formed of a Nematic phase liquid crystal and a dichromatism dye, wherein an original orientation of the liquid crystal molecules is parallel to the first substrate, and after applying an electric field to the polarizing filter structure, the orientation of the liquid crystal molecules is vertical to the first substrate. ### Claim 16 (depends on 15) The reflective type naked-eye 3D display apparatus according to claim 15, wherein the polarizing filter structure comprises at least one first region and at least one second region, and each sub pixel comprises one first region and one second region, the orientation of the liquid crystal molecules of the first region is parallel to the first substrate, and the orientation of the liquid crystal molecules of the second region is vertical to the first substrate. ### Claim 17 (depends on 12) The reflective type naked-eye 3D display apparatus according to claim 12, wherein the fourth region of the reflective layer structure comprises a nano-scale wire grid polarizer; or the fourth region of the reflective layer structure comprises a cholesteric phase liquid crystal display panel; or the fourth region of the reflective layer structure comprises a 3M selectively reflective film.