# US 12,007,663 B2 · Display apparatus > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,007,663 B2 - Document ID: US12007663B2 - Status: Granted - Kind: B2 - Application number: 18/302,808 - Filed: 2023-04-19 - Published: 2024-04-11 - Granted: 2024-06-11 - Earliest claimed: 2022-10-07 - Assignees: Acer Incorporated - Applicants: Acer Incorporated - Inventors: Jui-Chieh Hsiang; Chih-Chiang Chen - Web page: https://patentgrep.com/patent/US12007663B2 ## CPC - G02F 1/292: {by controlled diffraction or phased-array beam steering (controlled diffraction for optical switching G02F1/31)} - G02B 6/10: of the optical waveguide type (G02B6/02, G02B6/24 take precedence; devices or arrangements for the control of light by electric, magnetic, electro-magnetic or acoustic means G02F1/00; transferring the modulation of modulated light G02F2/00; optical logic elements G02F3/00; optical analogue/digital converters G02F7/00) - G03B 30/00: Camera modules comprising integrated lens units and imaging units, specially adapted for being embedded in other devices, e.g. mobile phones or vehicles - G02F 2202/28: Adhesive materials or arrangements - 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 - G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS - G03B: APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR (optical parts of such apparatus G02B; photosensitive materials or processes for photographic purposes G03C; apparatus for processing exposed photographic materials G03D) ## Abstract A display apparatus including a display panel, a camera module, and a diffraction suppression device is provided. The display panel is provided with multiple signal lines and multiple display pixels. The signal lines and the display pixels are alternately arranged along at least one direction. The camera module has a light receiving surface facing the display panel. The light receiving surface is overlapped with the display panel. The diffraction suppression device is disposed between the display panel and the camera module, and has multiple first light-transmitting regions and multiple second light-transmitting regions alternately arranged along the at least one direction. The first light-transmitting regions are respectively overlapped with the display pixels. The second light-transmitting regions are respectively overlapped with the signal lines. The diffraction suppression device has a first refractive index in the first light-transmitting regions and a second refractive index in the second light-transmitting regions. The first refractive index is greater than the second refractive index. ## Claims ### Claim 1 A display apparatus, comprising: a display panel, provided with a plurality of signal lines and a plurality of display pixels, wherein the signal lines and the display pixels are alternately arranged along at least one direction; a camera module, having a light receiving surface facing the display panel, wherein the light receiving surface is overlapped with the display panel; and a diffraction suppression device, disposed between the display panel and the camera module, and having a plurality of first light-transmitting regions and a plurality of second light-transmitting regions alternately arranged along the at least one direction, wherein the first light-transmitting regions are respectively overlapped with the display pixels, the second light-transmitting regions are respectively overlapped with the signal lines, the diffraction suppression device has a first refractive index in the first light-transmitting regions and has a second refractive index in the second light-transmitting regions, and the first refractive index is greater than the second refractive index, wherein the diffraction suppression device comprises a liquid crystal layer, the liquid crystal layer comprises a plurality of first portions respectively disposed in the first light-transmitting regions and a plurality of second portions respectively disposed in the second light-transmitting regions, and an arrangement pitch of the first portions along the at least one direction is equal to an arrangement pitch of the display pixels along the at least one direction. ### Claim 2 (depends on 1) The display apparatus according to claim 1, wherein the diffraction suppression device further comprises at least one substrate, and an orthogonal projection area of each of the first portions and the second portions of the liquid crystal layer on the at least one substrate changes over time. ### Claim 3 (depends on 2) The display apparatus according to claim 2, wherein the display pixels comprise a first display pixel and a second display pixel adjacent to each other, and in a first time interval, an orthogonal projection area of one of the first portions overlapped with the first display pixel on the at least one substrate is greater than an orthogonal projection area of another one of the first portions overlapped with the second display pixel on the at least one substrate. ### Claim 4 (depends on 3) The display apparatus according to claim 3, wherein in a second time interval, the orthogonal projection area of the one of the first portions overlapped with the first display pixel on the at least one substrate is smaller than the orthogonal projection area of the another one of the first portions overlapped with the second display pixel on the at least one substrate. ### Claim 5 (depends on 4) The display apparatus according to claim 4, wherein the camera module performs one image capture in the first time interval and the second time interval. ### Claim 6 A display apparatus, comprising: a display panel, provided with a plurality of signal lines and a plurality of display pixels, wherein the signal lines and the display pixels are alternately arranged along at least one direction; a camera module, having a light receiving surface facing the display panel, wherein the light receiving surface is overlapped with the display panel; and a diffraction suppression device, disposed between the display panel and the camera module, and having a plurality of first light-transmitting regions and a plurality of second light-transmitting regions alternately arranged along the at least one direction, wherein the first light-transmitting regions are respectively overlapped with the display pixels, the second light-transmitting regions are respectively overlapped with the signal lines, the diffraction suppression device has a first refractive index in the first light-transmitting regions and has a second refractive index in the second light-transmitting regions, and the first refractive index is greater than the second refractive index, wherein the camera module comprises: a light sensor, provided with the light receiving surface; and a lens, disposed on one side of the light receiving surface of the light sensor, and overlapped with the light receiving surface, wherein the diffraction suppression device is integrated in the camera module and comprises a substrate and a liquid crystal layer, and the liquid crystal layer is clamped between the substrate and the lens. ### Claim 7 (depends on 6) The display apparatus according to claim 6, wherein the substrate of the diffraction suppression device and the lens of the camera module are connected through an adhesive pattern to form a sealed chamber, and the sealed chamber is filled with the liquid crystal layer. ### Claim 8 (depends on 6) The display apparatus according to claim 6, wherein the light sensor is coupled to a microcontroller, the diffraction suppression device is coupled to a timing control chip, and the microcontroller and the timing control chip are synchronized in timing. ### Claim 9 (depends on 6) The display apparatus according to claim 6, wherein the camera module further comprises a filter, disposed between the light sensor and the lens. ### Claim 10 A display apparatus, comprising: a display panel, provided with a plurality of signal lines and a plurality of display pixels, wherein the signal lines and the display pixels are alternately arranged along at least one direction; a camera module, having a light receiving surface facing the display panel, wherein the light receiving surface is overlapped with the display panel; and a diffraction suppression device, disposed between the display panel and the camera module, and having a plurality of first light-transmitting regions and a plurality of second light-transmitting regions alternately arranged along the at least one direction, wherein the first light-transmitting regions are respectively overlapped with the display pixels, the second light-transmitting regions are respectively overlapped with the signal lines, the diffraction suppression device has a first refractive index in the first light-transmitting regions and has a second refractive index in the second light-transmitting regions, and the first refractive index is greater than the second refractive index, wherein the first light-transmitting regions of the diffraction suppression device are respectively provided with a plurality of light guide structures; and each of the light guide structures has a refractive surface facing one of the second light-transmitting regions and a light incident surface facing the display panel, the refractive surface and the light incident surface are connected with each other and have an included angle, and the included angle is within a range of 30 degrees to 60 degrees. ### Claim 11 A display apparatus, comprising: a display panel, provided with a plurality of signal lines and a plurality of display pixels, wherein the signal lines and the display pixels are alternately arranged along at least one direction; a camera module, having a light receiving surface facing the display panel, wherein the light receiving surface is overlapped with the display panel; and a diffraction suppression device, disposed between the display panel and the camera module, and having a plurality of first light-transmitting regions and a plurality of second light-transmitting regions alternately arranged along the at least one direction, wherein the first light-transmitting regions are respectively overlapped with the display pixels, the second light-transmitting regions are respectively overlapped with the signal lines, the diffraction suppression device has a first refractive index in the first light-transmitting regions and has a second refractive index in the second light-transmitting regions, and the first refractive index is greater than the second refractive index, wherein the first light-transmitting regions of the diffraction suppression device are respectively provided with a plurality of light guide structures; and the camera module comprises: a light sensor, provided with the light receiving surface; and a lens, disposed on one side of the light receiving surface of the light sensor, and overlapped with the light receiving surface, wherein the diffraction suppression device is integrated in the camera module, and the light guide structures are connected to the lens. ### Claim 12 (depends on 11) The display apparatus according to claim 11, wherein the camera module further comprises a filter, disposed between the light sensor and the lens.