# US 10,771,770 B2 · 3D display device and a driving method thereof > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,771,770 B2 - Document ID: US10771770B2 - Status: Granted - Kind: B2 - Application number: 15/538,038 - Filed: 2016-12-02 - Published: 2017-12-28 - Granted: 2020-09-08 - Earliest claimed: 2015-12-03 - Assignees: Boe Technology Group Co., Ltd.; Beijing Boe Optoelectronics Technology Co., Ltd. - Applicants: Boe Technology Group Co., Ltd.; Beijing Boe Optoelectronics Technology Co., Ltd. - Inventors: Pengcheng Lu; Xiaochuan Chen; Wenqing Zhao; Ming Yang; Lei Wang; Rui Xu; Jian Gao; Xiaochen Niu; Haisheng Wang; Shengji Yang; Changfeng Li - Web page: https://patentgrep.com/patent/US10771770B2 ## CPC - G02B 30/33: involving directional light or back-light sources - G02B 30/27: involving lenticular arrays - H04N 13/312: the parallax barriers being placed behind the display panel, e.g. between backlight and spatial light modulator [SLM] - H04N 13/32: using arrays of controllable light sources; using moving apertures or moving light sources - H04N 13/324: Colour aspects - H04N 13/356: having separate monoscopic and stereoscopic modes - H04N 13/398: Synchronisation thereof; Control thereof - 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 - G02F 2201/44: Arrangements combining different electro-active layers, e.g. electrochromic, liquid crystal or electroluminescent layers - H10H 29/142: {Two-dimensional arrangements, e.g. asymmetric LED layout} - G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS - H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION - 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 - H10H: INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS ## Abstract A 3D display device and the driving method for the 3D display device are provided. The 3D display device includes a liquid crystal display panel for monochrome display, and an electroluminescence display panel for color display disposed under the liquid crystal display panel; the electroluminescence display panel includes a plurality of regions arranged in a matrix, the plurality of regions form columns of bright regions and columns of dark regions, which are arranged alternately the liquid crystal display panel includes a plurality of first sub-pixels arranged in a matrix; each bright region of the electroluminescence display panel corresponds to at least two first sub-pixels adjacent in row direction of the liquid crystal display panel. ## Claims ### Claim 1 A 3D display device, comprising: a liquid crystal display panel for monochrome display, and an electroluminescence display panel for color display disposed under the liquid crystal display panel; wherein, the electroluminescence display panel comprises a plurality of regions arranged in a matrix, the plurality of regions form columns of bright regions and columns of dark regions, which are arranged alternately; in a 3D display portrait mode, each column of bright regions comprises bright regions with a same emitting color, and adjacent columns of bright regions have different emitting colors; in a 3D display landscape mode, each column of bright regions comprises bright regions, which are adjacent in a column direction, with different emitting colors, and the emitting colors of the bright regions, which are provided in a same row, of each column of bright regions are the same; and the liquid crystal display panel comprises a plurality of first sub-pixels arranged in a matrix; each bright region of the electroluminescence display panel corresponds to at least two first sub-pixels adjacent in a row direction of the liquid crystal display panel; in the 3D display portrait mode and the 3D display landscape mode, in each of the first sub-pixels corresponding to a same bright region, grey scales displayed by the first sub-pixels, which are configured to provide grey scale information of images of different viewpoints, are different from each other; in the 3D display portrait mode, each of the bright regions corresponds to N adjacent first sub-pixels, which are provided in a row; and in the 3D display landscape mode, each of the bright regions corresponds to M*N first sub-pixels, which are provided in N rows, adjacent in the row direction or in the column direction, wherein, M and N are integers larger than 1; and M and N are even numbers: in the 3D display portrait mode, the grey scales respectively displayed by N/2 first sub-pixels on the left side and N/2 first sub-pixels on a right side of the first sub-pixels corresponding to a same bright region are different; and in the 3D display landscape mode, the grey scales respectively displayed by M*N/2 first sub-pixels on the left side and M*N/2 first sub-pixels on the right side of the first sub-pixels corresponding to a same bright region are different. ### Claim 2 (depends on 1) The 3D display device according to claim 1, wherein, in the 3D display landscape mode, the dark regions are disposed between the bright regions, which are adjacent in the column direction, with different emitting colors. ### Claim 3 (depends on 2) The 3D display device according to claim 2, wherein, each of the bright regions and each of the dark regions respectively comprise one or more second sub-pixels. ### Claim 4 (depends on 2) The 3D display device according to claim 2, wherein a shape of each of the bright regions is square or round, and an aspect ratio of each of the first sub-pixels is 1:1. ### Claim 5 (depends on 2) The 3D display device according to claim 2, wherein a central position of each of the bright regions coincides with a central position of a region where a corresponding first sub-pixel is located. ### Claim 6 (depends on 2) The 3D display device according to claim 2, wherein the grey scales of the first sub-pixels corresponding to a same bright region are set to be the same, so as to make the 3D display device in a 2D display mode. ### Claim 7 (depends on 1) The 3D display device according to claim 1, wherein, each of the bright regions and each of the dark regions respectively comprise one or more second sub-pixels. ### Claim 8 (depends on 1) The 3D display device according to claim 1, wherein a shape of each of the bright regions is square or round, and an aspect ratio of each of the first sub-pixels is 1:1. ### Claim 9 (depends on 1) The 3D display device according to claim 1, wherein a central position of each of the bright regions coincides with a central position of a region where a corresponding first sub-pixel is located. ### Claim 10 (depends on 1) The 3D display device according to claim 1, wherein the grey scales of the first sub-pixels corresponding to a same bright region are set to be the same, so as to make the 3D display device in a 2D display mode. ### Claim 11 (depends on 1) A driving method for the 3D display devices according to claim 1, comprising: controlling regions of an electroluminescence display panel disposed under a liquid crystal display panel to form columns of bright regions and columns of dark regions, which are arranged alternately; and controlling first sub-pixels, which correspond to a same bright region, of the liquid crystal display panel to display different grey scale information, so as to make the 3D display device in a 3D display mode; wherein, in the 3D display portrait mode, each column of bright regions comprises bright regions with a same emitting color, and adjacent columns of bright regions have different emitting colors; and in the 3D display landscape mode, each column of bright regions comprises bright regions, which are adjacent in the column direction, with different emitting colors, and the emitting colors of the bright regions, which are provided in a same row, of each column of the bright regions are the same. ### Claim 12 (depends on 11) The driving method according to claim 11, further comprising: in the 2D display mode, controlling the first sub-pixels, which correspond to a same bright region, in the liquid crystal display panel to display same grey scale information. ### Claim 13 (depends on 11) The driving method according to claim 11, further comprising: in the 3D display landscape mode, controlling to form the dark regions between the bright regions, which are adjacent in the column direction, with different emitting colors. ### Claim 14 (depends on 11) The driving method according to claim 11, wherein, in the 3D display portrait mode, each of the bright regions corresponds to N adjacent first sub-pixels, which are provided in a row, wherein N is an even numbers; N/2 first sub-pixels on the left side and N/2 first sub-pixels on the right side of the first sub-pixels corresponding to a same bright region is controlled to display different grey scales; and in the 3D display landscape mode, each of the bright regions corresponds to M*N first sub-pixels, which are provided in N rows, adjacent in the row direction or in the column direction, wherein M is an even numbers; M*N/2 first sub-pixels on the left side and M*N/2 first sub-pixels on the right side of the first sub-pixels corresponding to a same bright region is controlled to display different grey scales.