# US 2025/0147552 A1 · Electronic Book

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- Number: US 2025/0147552 A1
- Document ID: US20250147552A1
- Status: Published application
- Kind: A1
- Application number: 19/014,969
- Filed: 2025-01-09
- Published: 2025-05-08
- Earliest claimed: 2009-05-02
- Assignees: Semiconductor Energy Laboratory Co., Ltd.
- Applicants: Semiconductor Energy Laboratory Co., Ltd.
- Inventors: Shunpei YAMAZAKI; Jun KOYAMA; Yasuyuki ARAI; Ikuko KAWAMATA; Atsushi MIYAGUCHI; Yoshitaka MORIYA
- Web page: https://patentgrep.com/patent/US20250147552A1

## CPC

- G06F 1/1652: {the display being flexible, e.g. mimicking a sheet of paper, or rollable}
- G02F 1/133305: {Flexible substrates, e.g. plastics, organic film}
- G02F 1/13452: {Conductors connecting driver circuitry and terminals of panels}
- G02F 1/1368: in which the switching element is a three-electrode device {(G02F1/136277 takes precedence)}
- G06F 1/1616: {with folding flat displays, e.g. laptop computers or notebooks having a clamshell configuration, with body parts pivoting to an open position around an axis parallel to the plane they define in closed position}
- G06F 1/1635: {Details related to the integration of battery packs and other power supplies such as fuel cells or integrated AC adapter}
- G06F 1/1643: {the display being associated to a digitizer, e.g. laptops that can be used as penpads (details related to the relative motion of the display enclosure with respect to the body enclosure, e.g. to move between laptop and tablet PC configuration G06F1/1615)}
- G06F 1/1647: {including at least an additional display (G06F1/1692 takes precedence)}
- G06F 3/147: using display panels
- G09G 3/035: {for flexible display surfaces}
- G09G 3/20: for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix {no fixed position being assigned to or needed to be assigned to the individual characters or partial characters}
- G09G 3/2096: {Details of the interface to the display terminal specific for a flat panel (suitable for both CRT and flat panel G09G5/006; specific for a CRT G09G1/167)}
- G09G 3/3225: using an active matrix
- G09G 3/3648: {using an active matrix (G09G3/367 - G09G3/3696 take precedence)}
- G09G 5/003: {Details of a display terminal, the details relating to the control arrangement of the display terminal and to the interfaces thereto (specific for a CRT G09G1/165; for a flat panel G09G3/2092)}
- G06F 3/1423: {controlling a plurality of local displays, e.g. CRT and flat panel display}
- G09G 3/344: {based on particles moving in a fluid or in a gas, e.g. electrophoretic devices (electrophoretic devices per se G02F1/167)}
- G09G 2300/08: Active matrix structure, i.e. with use of active elements, inclusive of non-linear two terminal elements, in the pixels together with light emitting or modulating elements
- G09G 2310/0218: with collection of electrodes in groups for n-dimensional addressing
- G09G 2310/0267: Details of drivers for scan electrodes, other than drivers for liquid crystal, plasma or OLED displays
- 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 2310/0281: Arrangement of scan or data electrode driver circuits at the periphery of a panel not inherent to a split matrix structure
- G09G 2330/02: Details of power systems and of start or stop of display operation
- G09G 2330/021: Power management, e.g. power saving
- G09G 2360/144: the light being ambient light
- G09G 2380/14: Electronic books and readers
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)
- 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
- 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 e-book reader in which destruction of a driver circuit at the time when a flexible panel is handled is inhibited. In addition, an e-book reader having a simplified structure. A plurality of flexible display panels each including a display portion in which display control is performed by a scan line driver circuit and a signal line driver circuit, and a binding portion fastening the plurality of display panels together are included. The signal line driver circuit is provided inside the binding portion, and the scan line driver circuit is provided at the edge of the display panel in a direction perpendicular to the binding portion.

## Claims

### Claim 1

An electronic device comprising:
a plurality of flexible display panels each including a display portion and a scan line driver circuit;
a signal line driver circuit; and
a binding portion configured to fasten the plurality of flexible display panels,
wherein the signal line driver circuit is provided inside the binding portion.