# US 10,311,800 B2 · Electro-optical device having a storage capacitor formed by a data line and a potential line > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,311,800 B2 - Document ID: US10311800B2 - Status: Granted - Kind: B2 - Application number: 15/959,765 - Filed: 2018-04-23 - Published: 2018-08-23 - Granted: 2019-06-04 - Earliest claimed: 2011-11-16 - Assignees: Seiko Epson Corporation - Applicants: Seiko Epson Corporation - Inventors: Toshiyuki Kasai; Takeshi Nomura - Web page: https://patentgrep.com/patent/US10311800B2 ## CPC - G09G 3/3291: in which the data driver supplies a variable data voltage for setting the current through, or the voltage across, the light-emitting elements - G09G 3/3233: with pixel circuitry controlling the current through the light-emitting element - G09G 2300/0814: used for selection purposes, e.g. logical AND for partial update - G09G 2300/0838: with level shifting - G09G 2300/0861: with additional control of the display period without amending the charge stored in a pixel memory, e.g. by means of additional select electrodes - G09G 2300/0876: Supplementary capacities in pixels having special driving circuits and electrodes instead of being connected to common electrode or ground; Use of additional capacitively coupled compensation electrodes - G09G 2310/0256: with the purpose of reversing the voltage across a light emitting or modulating element within a pixel - G09G 2310/0275: Details of drivers for data electrodes, other than drivers for liquid crystal, plasma or OLED displays, not related to handling digital grey scale data or to communication of data to the pixels by means of a current - G09G 2310/0289: Details of voltage level shifters arranged for use in a driving circuit - G09G 2310/0297: Special arrangements with multiplexing or demultiplexing of display data in the drivers for data electrodes, in a pre-processing circuitry delivering display data to said drivers or in the matrix panel, e.g. multiplexing plural data signals to one D/A converter or demultiplexing the D/A converter output to multiple columns - G09G 2320/045: Compensation of drifts in the characteristics of light emitting or modulating elements - 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 electro-optical device is provided with a plurality of data lines, a plurality of potential lines supplied with a predetermined potential, a driving transistor controlling a current level according to the voltage between the gate and the source, a first storage capacitor which holds the voltage between the gate and a source of the driving transistor, and a light-emitting element. One data line among the plurality of data lines and one potential line among the plurality of potential lines are arranged to be adjacent to each other, and a second storage capacitor holding the potential of the one data line is formed by the one data line and the one potential line. ## Claims ### Claim 1 An electro-optical device comprising: a scanning line extending in a first direction; a data line extending in a second direction; a potential line extending in the second direction; a first storage capacitor holding potential of the data line; a pixel circuit provided corresponding to intersections of the scanning line and the data line, the pixel circuit including: a driving transistor having a first gate, a first source, and a first drain, the driving transistor controlling a current level according to a voltage between the first gate and the first source; a writing transistor electrically connected between the first gate and the data line; a second storage capacitor of which one end is electrically connected to the first gate and which holds the voltage between the first gate and first source; and a light-emitting element emitting light at a luminance according to the current level; a data signal output circuit that outputs a first analog data signal; and a third storage capacitor having one end that is electrically connected to the data signal output circuit and another end that is electrically connected to the data line, wherein the first storage capacitor is formed by a part of the data line and a part of the potential line that are arranged adjacent to each other with a dielectric interposing them in a same layer, wherein the first gate is supplied a second data signal through the another end of the third storage capacitor and the data line, a potential range of the second data signal being narrower than a potential range of the first analog data signal. ### Claim 2 (depends on 1) The electro-optical device according to claim 1, wherein the third storage capacitor is formed from two electrodes that are adjacent to each other when viewed from a direction orthogonal to the electro-optical device. ### Claim 3 (depends on 1) The electro-optical device according to claim 1, wherein the pixel circuit further includes an initialization transistor electrically connected between the potential line and the light-emitting element. ### Claim 4 (depends on 1) The electro-optical device according to claim 1, wherein the pixel circuit further includes: a light-emitting control transistor electrically connected between the driving transistor and the light-emitting element; and a threshold compensation transistor electrically connected between the first gate and the first drain. ### Claim 5 (depends on 1) The electro-optical device according to claim 1, wherein the data line and the potential line are provided between two pixel circuits which are adjacent to each other in the first direction. ### Claim 6 (depends on 5) The electro-optical device according to claim 5, wherein the data line is electrically connected to one among the two pixel circuits which are adjacent to each other, and the potential line is electrically connected to another among the two pixel circuits which are adjacent to each other. ### Claim 7 (depends on 6) The electro-optical device according to claim 6, wherein the data line and the potential line are electrically connected to one among the two pixel circuits which are adjacent to each other. ### Claim 8 (depends on 1) An electronic apparatus comprising the electro-optical device according to claim 1. ### Claim 9 (depends on 2) An electronic apparatus comprising the electro-optical device according to claim 2. ### Claim 10 (depends on 3) An electronic apparatus comprising the electro-optical device according to claim 3. ### Claim 11 (depends on 4) An electronic apparatus comprising the electro-optical device according to claim 4. ### Claim 12 (depends on 5) An electronic apparatus comprising the electro-optical device according to claim 5. ### Claim 13 (depends on 6) An electronic apparatus comprising the electro-optical device according to claim 6. ### Claim 14 (depends on 7) An electronic apparatus comprising the electro-optical device according to claim 7.