# US 10,311,809 B2 · Dual view-field display and fabricating method and 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 10,311,809 B2 - Document ID: US10311809B2 - Status: Granted - Kind: B2 - Application number: 14/770,235 - Filed: 2014-10-30 - Published: 2016-09-15 - Granted: 2019-06-04 - Earliest claimed: 2014-07-08 - Assignees: Boe Technology Group Co., Ltd. - Applicants: Boe Technology Group Co., Ltd. - Inventors: Chia Chiang Lin; Yanbing Wu - Web page: https://patentgrep.com/patent/US10311809B2 ## CPC - G09G 3/3607: {for displaying colours or for displaying grey scales with a specific pixel layout, e.g. using sub-pixels (display of colours in flat matrix panels other than liquid crystal displays G09G3/2003; grey scales specific for television H04N3/127)} - G02F 1/133512: {Light shielding layers, e.g. black matrix (G02F1/136209 takes precedence)} - G09G 3/003: {to produce spatial visual effects} - G02F 1/133354: {Arrangements for aligning or assembling substrates} - G02F 1/133514: {Colour filters} - G02F 2201/305: diffraction grating - G09G 2300/0452: Details of colour pixel setup, e.g. pixel composed of a red, a blue and two green components - G09G 2320/0209: Crosstalk reduction, i.e. to reduce direct or indirect influences of signals directed to a certain pixel of the displayed image on other pixels of said image, inclusive of influences affecting pixels in different frames or fields or sub-images which constitute a same image, e.g. left and right images of a stereoscopic display - G09G 2320/0238: Improving the black level - G09G 2320/028: by changing the viewing angle properties, e.g. widening the viewing angle, adapting the viewing angle to the view direction - G09G: ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION (arrangements for transferring data between digital computers and displays G06F3/14; static indicating arrangements comprising an association of a number of separate sources or light control cells G09F9/00; static indicating arrangements comprising integral associations of a number of light sources H01J, H01K, H10H, H05B33/12; scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission, details thereof H04N1/00) - 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 dual view-field display and a fabricating method and a driving method thereof are provided. The dual view-field display includes a color filter substrate and an array substrate which are oppositely disposed. A slit grating is disposed on a side of the color filter substrate or the array substrate, and the color filter substrate includes a plurality of pixel units and a first black matrix surrounding each pixel unit. The slit grating includes light-shielding regions and light-transmitting regions, which are arranged at intervals in a matrix. The dual view-field display further comprises a light blocking portion configured for preventing light rays from leaking out of an upper-edge region and/or a lower-edge region of the light-transmitting region, which solves a problem that a viewing angle of a user of the dual view-field display is limited. ## Claims ### Claim 1 A dual view-field display, comprising: a color filter substrate, comprising a plurality of pixel units and a first black matrix surrounding each pixel unit, each of pixel units comprising at least three sub-pixels, each of at least three sub-pixels having a length along a first direction and a width along a second direction, the first direction being perpendicular to the second direction, and the length of each of at least three sub-pixels is larger than the width; an array substrate arranged opposite to the color filter substrate; a slit grating disposed on a side of the color filter substrate or a side of the array substrate, and the slit grating comprising at least one light-shielding region and at least one light-transmitting region arranged at intervals in a matrix, the at least one light-transmitting region being arranged over the two pixel units adjacent in the first direction and configured to expose each of the at least three sub-pixels of each of the two pixel units; and a light blocking portion, disposed in the at least one light-transmitting region and configured for preventing light rays from leaking out of at least one of an upper-edge region and a lower-edge region of the at least one light-transmitting region, the light blocking portion being symmetrical along a central axis of the first black matrix in the at least one light-transmitting region, and the central axis is extended along the second direction. ### Claim 2 (depends on 1) The dual view-field display according to claim 1, wherein the light blocking portion comprises a second black matrix, which is located on the color filter substrate and corresponds to the at least one of the upper-edge region and the lower-edge region of the at least one light-transmitting region. ### Claim 3 (depends on 2) The dual view-field display according to claim 2, wherein the pixel unit comprises at least one red sub-pixel, one green sub-pixel and one blue sub-pixel which are arranged parallel to each other. ### Claim 4 (depends on 1) The dual view-field display according to claim 1, wherein the pixel unit further comprises at least one dark-state sub-pixel configured for displaying a black picture; the at least one dark-state sub-pixel comprises the red sub-pixel, or the green sub-pixel, or the blue sub-pixel; the light blocking portion comprises a portion of the at least one dark-state sub-pixel which corresponds to the at least one of the upper-edge region and the lower-edge region of the at least one light-transmitting region. ### Claim 5 (depends on 1) The dual view-field display according to claim 1, wherein the slit grating comprising a plurality of light-transmitting regions arranged in rows and columns, each of light-transmitting regions is provided with the light-blocking portion, the light-blocking portions in two adjacent rows of the light-transmitting regions are configured to block two different colors of light. ### Claim 6 (depends on 2) The dual view-field display according to claim 2, wherein the first black matrix and the second black matrix are of an integral structure. ### Claim 7 (depends on 1) The dual view-field display according to claim 1, wherein a length of the at least one light-transmitting region is less than or equal to half of a central spacing between two adjacent light-transmitting regions. ### Claim 8 (depends on 1) The dual view-field display according to claim 1, wherein the at least one light-shielding region partially covers at least two pixel units adjacent in the first direction, and completely covers the first black matrix corresponding to a position of the at least one light-shielding region. ### Claim 9 (depends on 2) The dual view-field display according to claim 2, wherein a width of the second black matrix is equal to or greater than that of the at least one light-transmitting region. ### Claim 10 A method of fabricating a dual view-field display, comprising: providing an array substrate and a color filter substrate, wherein the color filter substrate comprises a plurality of pixel units and a first black matrix surrounding each pixel unit, each of pixel units comprising at least three sub-pixels, each of at least three sub-pixels having a length along a first direction and a width along a second direction, the first direction being perpendicular to the second direction, and the length of each of at least three sub-pixels is larger than the width; forming a slit grating, the slit grating comprising at least one light-shielding region and at least one light-transmitting region arranged at intervals in a matrix; forming a light blocking portion, the light blocking portion being configured for preventing light rays from leaking out of at least one of an upper-edge region and a lower-edge region of the at least one light-transmitting region, the light blocking portion being symmetrical along a central axis of the first black matrix in the at least one light-transmitting region, and the central axis is extended along the second direction; and assembling the color filter substrate and the array substrate into a cell, and arranging the slit grating on a side of the color filter substrate or a side of the array substrate, so that the at least one light-transmitting region being configured to expose each of the at least three sub-pixels of each of two pixel units adjacent in the first direction. ### Claim 11 (depends on 10) The method according to claim 10, wherein a length of the at least one light-transmitting region is less than or equal to half of a central spacing between two adjacent light-transmitting regions. ### Claim 12 (depends on 10) The method according to claim 10, wherein the at least one light-shielding region partially covers at least two pixel units adjacent in the first direction, and completely covers the first black matrix corresponding to a position of the at least one light-shielding region. ### Claim 13 (depends on 4) A method of driving the dual view-field display according to claim 4, comprising: inputting a control signal to the array substrate; controlling liquid crystals at a position corresponding to the at least one dark-state sub-pixel to deflect by the array substrate according to the control signal, so that the dual view-field display displays a black picture at the position corresponding to the at least one dark-state sub-pixel. ### Claim 14 (depends on 2) The dual view-field display according to claim 2, wherein the pixel unit further comprises at least one dark-state sub-pixel configured for displaying a black picture; the at least one dark-state sub-pixel comprises the red sub-pixel, or the green sub-pixel, or the blue sub-pixel; the light blocking portion comprises a portion of the at least one dark-state sub-pixel which corresponds to the at least one of the upper-edge region and the lower-edge region of the at least one light-transmitting region. ### Claim 15 (depends on 3) The dual view-field display according to claim 3, wherein the pixel unit further comprises at least one dark-state sub-pixel configured for displaying a black picture; the at least one dark-state sub-pixel comprises the red sub-pixel, or the green sub-pixel, or the blue sub-pixel; the light blocking portion comprises a portion of the at least one dark-state sub-pixel which corresponds to the at least one of the upper-edge region and the lower-edge region of the at least one light-transmitting region. ### Claim 16 (depends on 10) The method according to claim 10, wherein the step of forming the light blocking portion comprises: forming a second black matrix at a position of the color filter substrate where corresponds to the at least one of the upper-edge region and the lower-edge region of the at least one light-transmitting region. ### Claim 17 (depends on 16) The method according to claim 16, wherein the step of forming a second black matrix at a position of the color filter substrate where corresponds to the at least one of the upper-edge region and the lower-edge region of the at least one light-transmitting region comprises: forming a second black matrix in a trapezoidal shape at a position of the color filter substrate where corresponds to the at least one of an upper-edge region and a lower-edge region of the at least one light-transmitting region; wherein a shorter base of the trapezoid is located in the at least one light-transmitting region. ### Claim 18 (depends on 16) The method according to claim 16, wherein the first black matrix and the second black matrix are of an integral structure. ### Claim 19 (depends on 16) The method according to claim 16, wherein a width of the second black matrix is equal to or greater than that of the at least one light-transmitting region.