# US 2021/0241679 A1 · Visual display unit for processing a double input signal > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2021/0241679 A1 - Document ID: US20210241679A1 - Status: Published application - Kind: A1 - Application number: 17/050,477 - Filed: 2019-05-15 - Published: 2021-08-05 - Earliest claimed: 2018-05-16 - Assignees: Microoled - Applicants: Microoled - Inventors: Gunther HAAS; Laurent CHARRIER - Web page: https://patentgrep.com/patent/US20210241679A1 ## CPC - G09G 3/32: semiconductive, e.g. using light-emitting diodes [LED] - G09G 2300/0842: forming a memory circuit, e.g. a dynamic memory with one capacitor - G09G 2300/0857: Static memory circuit, e.g. flip-flop - G09G 2340/125: wherein one of the images is motion video - 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) ## Abstract An electroluminescent visual display unit (1) having: a matrix of electroluminescent pixels (38) formed from pixels arranged on a substrate, in a matrix arrangement in lines and columns, each pixel being formed by an elementary emitting zone (225, 325, 425); a first control block (2) to control a graphic and/or alphanumeric data stream that can be displayed on the matrix of pixels (38); a second control block (3) to control a video data stream that can be displayed on the matrix of pixels (38); and a unit (4) for generating a reference voltage, the device being characterized in that: each elementary emitting zone is connected to a static memory, addressed by the first control block (2), and to a dynamic memory, addressed by the second control block (3); the first (2) and second (3) control blocks for displaying data alternately or simultaneously on the same matrix of pixels (38). ## Claims ### Claim 1 An electroluminescent display unit (1) comprising: a matrix of electroluminescent pixels (38) formed from a plurality of pixels arranged on a substrate, according to a matrix arrangement in lines and columns, each pixel being formed by at least one elementary emitting zone (225,325,425); a first control block (2) configured to control a graphic and/or alphanumeric data stream that can be displayed on said matrix of pixels (38); a second control block (3) configured to control a video data stream that can be displayed on said matrix of pixels (38), said video data stream being refreshed periodically; a unit (4) for generating a reference voltage, knowing that said data stream may be static and reprogramed as required, or refreshed periodically with a refresh frequency independent from same of said video data stream, said unit (1) being characterized in that: each elementary emitting zone is connected to a static memory, addressed by said first control block (2), and to a dynamic memory, addressed by said second control block (3); said first (2) and second (3) control blocks are configured to be able to display data alternately or simultaneously on the same matrix of pixels (38). ### Claim 2 (depends on 1) The unit according to claim 1, characterized in that said first (2) and second (3) control blocks are configured to be able to display on the matrix of pixels (38) only the video data stream, or only the graphic and/or alphanumeric data stream, or even to overlay said graphic and/or alphanumeric data stream on said video data stream. ### Claim 3 (depends on 1) The unit according to claim 1, characterized in that each elementary emitting zone (225,325,425) comprises a dynamic memory, preferably a capacity (210,310,410), intended for video data. ### Claim 4 (depends on 1) The unit according to claim 1, characterized in that each elementary emitting zone (225,325,425) is connected to at least one, and preferably to a plurality of, static memories, preferably of SRAM or register type, intended for graphic and/or alphanumeric data. ### Claim 5 (depends on 1) The unit according to claim 1, characterized in that said first control block (2) is configured to send: towards an addressing table (132) that controls the addressing of the static memories of the matrix of electroluminescent pixels (38): a graphic and/or alphanumeric data signal (131), a horizontal addressing signal (133); towards a line driving element (137) an addressing signal (134) that controls the addressing of the lines of the electroluminescent display unit (38), for the display of said graphic and/or alphanumeric data (131) on said matrix of electroluminescent pixels (38). ### Claim 6 (depends on 1) The unit according to claim 1, characterized in that said second control block (3) is configured to send: a video data stream (31) towards a horizontal shift register (34) that controls the addressing of the columns of the matrix of electroluminescent pixels (38), a control signal (32) towards a line driving element (37) that controls the addressing of the lines of the matrix of electroluminescent pixels (38), for the display of said video data stream (31) on said matrix of electroluminescent pixels (38). ### Claim 7 (depends on 1) The unit according to claim 1, characterized in that said first (2) and second (3) control blocks are configured so that said first block has a number of bits of emission intensity levels higher than same of said second control block (3). ### Claim 8 (depends on 1) The unit according to claim 1, characterized in that said first control block is configured on at least eight bits of emission intensity levels, and/or said second control block is configured on two to six bits of emission intensity levels. ### Claim 9 (depends on 1) The unit according to claim 1, characterized in that said first control block (2) has a refresh rate higher than same of said second control block (3). ### Claim 10 (depends on 1) The unit according to claim 1, characterized in that said first control block (2) has a refresh rate higher than or equal to 25 Hz, preferably higher than or equal to 60 Hz, and even more preferably of at least 90 Hz, and/or in that said second control block (3) includes a memory unit for storing said graphic and/or alphanumeric data for a static display. ### Claim 11 (depends on 1) The unit according to claim 1, characterized in that said second control block (3) has a refresh rate between 0 Hz and 10 Hz, and preferably between 0.1 Hz and 1 Hz.