# US 12,225,811 B2 · Display apparatus and electronic apparatus > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,225,811 B2 - Document ID: US12225811B2 - Status: Granted - Kind: B2 - Application number: 17/561,856 - Filed: 2021-12-24 - Published: 2022-04-21 - Granted: 2025-02-11 - Earliest claimed: 2010-12-13 - Assignees: Jdi Design and Development G.K. - Applicants: Jdi Design & Development G.K. - Inventors: Tetsuo Minami; Katsuhide Uchino - Web page: https://patentgrep.com/patent/US12225811B2 ## CPC - G09G 3/325: the data current flowing through the driving transistor during a setting phase, e.g. by using a switch for connecting the driving transistor to the data driver - G09G 3/3266: Details of drivers for scan electrodes - G09G 3/3283: in which the data driver supplies a variable data current for setting the current through, or the voltage across, the light-emitting elements - H10K 59/131: Interconnections, e.g. wiring lines or terminals - H10K 77/111: {Flexible substrates} - G02F 1/133305: {Flexible substrates, e.g. plastics, organic film} - G09G 3/3225: using an active matrix - G09G 2320/045: Compensation of drifts in the characteristics of light emitting or modulating elements - G09G 2380/02: Flexible displays - H10K 59/87: {Passivation; Containers; Encapsulations} - H10K 2102/311: {Flexible OLED} - Y02E 10/549: Organic PV cells - 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) - H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES - 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 - Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION ## Abstract Disclosed herein is a display apparatus, including: a foldable substrate; a pixel array section including a plurality of pixels disposed on the substrate and each including an electro-optical device; the foldable substrate being folded at a substrate end portion at least on one side thereof around the pixel array section; a peripheral circuit section disposed on the substrate end portion and adapted to drive the pixels of the pixel array section; and a pad section provided on the substrate end portion on which the peripheral circuit section is provided and adapted to electrically connect the peripheral circuit section to the outside of the substrate. ## Claims ### Claim 1 A display apparatus, comprising: a first substrate; a pixel array comprising a plurality of pixels on the first substrate; a first peripheral circuit on a first end of the first substrate configured to drive the pixel array, wherein the first substrate comprises a first foldable region between the pixel array and the first peripheral circuit; a second peripheral circuit on a second end of the first substrate configured to drive the pixel array, wherein the pixel array is between the second peripheral circuit and the first peripheral circuit, and the first substrate comprises a second foldable region between the pixel array and the second peripheral circuit; a first wiring section over the first foldable region of the first substrate, wherein the first wiring section is between the pixel array and the first peripheral circuit, and the pixel array is between the second peripheral circuit and the first wiring section; a second wiring section over the second foldable region of the first substrate, wherein the second wiring section is between the pixel array and the second peripheral circuit; a first folding jig on a rear face of the first wiring section; a second folding jig on a rear face of the second wiring section; and a second substrate, wherein the pixel array is between the first substrate and the second substrate, and a length of the second substrate, in a non-folded state of the display apparatus, in a first direction parallel to a top surface of the first substrate is less than a length of the first substrate, in the non-folded state of the display apparatus, in the first direction. ### Claim 2 (depends on 1) The display apparatus of claim 1, wherein the first foldable region is foldable independently of the second foldable region. ### Claim 3 (depends on 1) The display apparatus of claim 1, further comprising a third peripheral circuit configured to drive the pixel array. ### Claim 4 (depends on 3) The display apparatus of claim 3, wherein the first peripheral circuit is spaced from the pixel array in the first direction, and the third peripheral circuit is spaced from the pixel array in a second direction perpendicular to the first direction. ### Claim 5 (depends on 4) The display apparatus of claim 4, wherein the first substrate comprises a third foldable region between the pixel array and the third peripheral circuit. ### Claim 6 (depends on 5) The display apparatus of claim 5, wherein the first foldable region is foldable independently of the third foldable region. ### Claim 7 (depends on 3) The display apparatus of claim 3, wherein the first substrate comprises a third foldable region on a first side of the third peripheral circuit, and the first substrate comprises a fourth foldable region on a second side of the third peripheral circuit. ### Claim 8 (depends on 7) The display apparatus of claim 7, wherein the third foldable region is aligned with the first foldable region. ### Claim 9 (depends on 8) The display apparatus of claim 8, wherein the first foldable region is foldable independently of the third foldable region. ### Claim 10 (depends on 1) The display apparatus of claim 1, further comprising a groove surrounding the pixel array, wherein the second substrate covers the groove.