# US 12,192,613 B2 · Advanced indicator system with colorful e-ink layer for embedded camera display > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,192,613 B2 - Document ID: US12192613B2 - Status: Granted - Kind: B2 - Application number: 17/748,590 - Filed: 2022-05-19 - Published: 2023-11-23 - Granted: 2025-01-07 - Earliest claimed: 2022-05-19 - Assignees: Dell Products L.P. - Applicants: Dell Products L.P. - Inventors: Guentaek Oh - Web page: https://patentgrep.com/patent/US12192613B2 ## CPC - H04M 1/0266: {for a display module assembly} - H04N 23/631: {Graphical user interfaces [GUI] specially adapted for controlling image capture or setting capture parameters} - G02F 1/133621: {providing coloured light (G02F1/133617, G02F1/133533 take precedence)} - G02F 1/167: by electrophoresis - G02F 1/1685: Operation of cells; Circuit arrangements affecting the entire cell - G03B 11/00: Filters or other obturators specially adapted for photographic purposes - 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 - G06F 1/1605: {Multimedia displays, e.g. with integrated or attached speakers, cameras, microphones} - G06F 1/1637: {Details related to the display arrangement, including those related to the mounting of the display in the housing} - G06F 1/1686: {the I/O peripheral being an integrated camera} - G02F 1/13312: {Circuits comprising photodetectors for purposes other than feedback} - G02F 1/16757: Microcapsules - G09F 9/35: being liquid crystals (G09F9/302 takes precedence; liquid crystal materials C09K19/00; {liquid crystal panels comprising a number of electrodes in a single cell per se G02F1/13}) - G09F 9/372: {the positions of the elements being controlled by the application of an electric field} - H04M 1/0264: {for a camera module assembly} - H04M: TELEPHONIC COMMUNICATION (circuits for controlling other apparatus via a telephone cable and not involving telephone switching apparatus G08) - 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 - 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) - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) - G09F: DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS ## Abstract An LCD panel includes a thin-film transistor layer having a first portion to provide an image on the LCD panel, and a second portion. An electronic ink reservoir is located proximate to the second portion of the thin-film transistor layer and includes an electronic ink configured under a first electrical stimulus to present a first color and under a second electrical stimulus to present a second color. The LCD panel directs the second portion of the thin-film transistor layer to provide the first electrical stimulus to the electronic ink reservoir in response to the LCD panel being in a first state, and directs the second portion of the thin-film transistor layer to provide the second electrical stimulus to the electronic ink reservoir in response to the LCD panel being in a second state. ## Claims ### Claim 1 A liquid crystal display (LCD) panel, comprising: a thin-film transistor layer including a first portion to provide an image on the LCD panel, a second portion, and a third portion, wherein the second portion surrounds the third portion; an electronic ink reservoir located proximate to the second portion of the thin-film transistor layer and including an electronic ink configured under a first electrical stimulus to present a first color and under a second electrical stimulus to present a second color; and an image capture device positioned behind the thin-film transistor layer and located proximate to the third portion of the thin film transistor layer; wherein the LCD panel is configured to direct the second portion of the thin-film transistor layer to provide the first electrical stimulus to the electronic ink reservoir in response to the LCD panel being in a first state, and to direct the second portion of the thin-film transistor layer to provide the second electrical stimulus to the electronic ink reservoir in response to the LCD panel being in a second state. ### Claim 2 (depends on 1) The LCD panel of claim 1, wherein the LCD panel provides an aperture for the image capture device, the aperture being located within the third portion of the thin-film transistor layer. ### Claim 3 (depends on 1) The LCD panel of claim 1, wherein the first state includes an on state of the image capture device, and the second state includes an off state of the image capture device. ### Claim 4 (depends on 3) The LCD panel of claim 3, wherein the first color is green and the second color is red. ### Claim 5 (depends on 1) The LCD panel of claim 1, wherein the electronic ink includes particles, each particle having a first surface of the first color and a second surface of the second color. ### Claim 6 (depends on 5) The LCD panel of claim 5, wherein each particle retains a positive charge on the first surface and a negative charge on the second surface. ### Claim 7 (depends on 1) The LCD panel of claim 1, wherein the electronic ink includes a plurality of capsules, each capsule including particles of a first type and particles of a second type, wherein the first type of particles are of the first color and retain a positive charge, and wherein the second type of particles are of the second color and retain a negative charge. ### Claim 8 (depends on 1) The LCD panel of claim 1, wherein the electronic ink reservoir includes particles of a first type and particles of a second type, wherein the first type of particles are of the first color and retain a positive charge, and wherein the second type of particles are of the second color and retain a negative charge. ### Claim 9 A method, comprising: providing, on a thin-film transistor layer of a liquid crystal display (LCD) panel, a first portion to provide an image on the LCD panel, a second portion, and a third portion, wherein the second portion surrounds the third portion; locating, proximate the second portion of the thin-film transistor layer, an electronic ink reservoir, the electronic ink reservoir including an electronic ink configured under a first electrical stimulus to present a first color and under a second electrical stimulus to present a second color; locating, proximate to the third portion of the thin-film transistor layer, an image capture device, wherein the image capture device is positioned behind the thin-film transistor layer; directing the second portion of the thin-film transistor layer to provide the first electrical stimulus to the electronic ink reservoir in response to the LCD panel being in a first state; and directing the second portion of the thin-film transistor layer to provide the second electrical stimulus to the electronic ink reservoir in response to the LCD panel being in a second state. ### Claim 10 (depends on 9) The method of claim 9, further comprising providing, within the third portion of the thin-film transistor layer, an aperture for the image capture device. ### Claim 11 (depends on 9) The method of claim 9, wherein the first state includes an on state of the image capture device, and the second state includes an off state of the image capture device. ### Claim 12 (depends on 11) The method of claim 11, wherein the first color is green and the second color is red. ### Claim 13 (depends on 9) The method of claim 9, wherein the electronic ink includes particles, each particle having a first surface of the first color and a second surface of the second color. ### Claim 14 (depends on 13) The method of claim 13, wherein each particle retains a positive charge on the first surface and a negative charge on the second surface. ### Claim 15 (depends on 9) The method of claim 9, wherein the electronic ink includes a plurality of capsules, each capsule including particles of a first type and particles of a second type, wherein the first type of particles are of the first color and retain a positive charge, and wherein the second type of particles are of the second color and retain a negative charge. ### Claim 16 A display panel, comprising: a display panel device including a first portion to provide an image on the display panel, a second portion, and a third portion, wherein the second portion surrounds the third portion; an electronic ink reservoir located proximate to the second portion of the thin-film transistor layer and including an electronic ink configured under a first electrical stimulus to present a first color and under a second electrical stimulus to present a second color; and an image capture device positioned behind the thin-film transistor layer and located proximate to the third portion of the thin film transistor layer; wherein the display panel is configured to direct the second portion of the display panel device to provide the first electrical stimulus to the electronic ink reservoir in response to the display panel being in a first state, and to direct the second portion of the display panel device to provide the second electrical stimulus to the electronic ink reservoir in response to the display panel being in a second state.