# US 2021/0278713 A1 · Display Device and Electronic Device

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- Number: US 2021/0278713 A1
- Document ID: US20210278713A1
- Status: Published application
- Kind: A1
- Application number: 17/313,609
- Filed: 2021-05-06
- Published: 2021-09-09
- Earliest claimed: 2016-06-10
- Assignees: Semiconductor Energy Laboratory Co., Ltd.
- Applicants: Semiconductor Energy Laboratory Co., Ltd.
- Inventors: Shunpei Yamazaki; Daisuke Kubota; Naoto Kusumoto
- Web page: https://patentgrep.com/patent/US20210278713A1

## CPC

- G02F 1/1335: Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02B 5/30: Polarising elements (light-modulating devices with active elements G02F1/00)
- G02B 5/3016: {involving passive liquid crystal elements (optical properties of liquid crystals G02F1/0063; polarising elements associated with active liquid crystal devices G02F1/133528)}
- G02F 1/133514: {Colour filters}
- G02F 1/133555: {Transflectors}
- G02F 1/13471: {in which all the liquid crystal cells or layers remain transparent, e.g. FLC, ECB, DAP, HAN, TN, STN, SBE-LC cells (G02F1/13475 takes precedence)}
- 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 3/32: semiconductive, e.g. using light-emitting diodes [LED]
- G09G 3/3233: with pixel circuitry controlling the current through the light-emitting element
- G09G 3/3648: {using an active matrix (G09G3/367 - G09G3/3696 take precedence)}
- H10F 55/10: wherein the radiation-sensitive semiconductor devices control the electric light source, e.g. image converters, image amplifiers or image storage devices
- F21S 2/00: Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
- G02F 1/1333: Constructional arrangements; {Manufacturing methods}(G02F1/135, G02F1/136 take precedence)
- G02F 1/133626: {providing two modes of illumination, e.g. day-night}
- G02F 1/13478: {based on selective reflection}
- G02F 2201/44: Arrangements combining different electro-active layers, e.g. electrochromic, liquid crystal or electroluminescent layers
- G02F 2203/01: transmissive
- G02F 2203/02: reflective
- G02F 2203/09: transflective
- G09F 9/00: Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements (in which the variable information is permanently attached to a movable support G09F11/00; abacus G06C1/00; slide-rules G06G1/00)
- G09G 2300/046: with an emissive area and a light-modulating area combined in one pixel
- G09G 2300/0842: forming a memory circuit, e.g. a dynamic memory with one capacitor
- G09G 2320/0686: with two or more screen areas displaying information with different brightness or colours
- G09G 2330/021: Power management, e.g. power saving
- 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
- G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- 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)
- H10F: INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
- F21S: NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- G09F: DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS

## Abstract

A display device includes a first region and a second region adjacent to the first region. A display element included in the first region has a function of reflecting visible light and a function of emitting visible light. A display element included in the second region has a function of emitting visible light. In an electronic device including the display device, the first region is located on a first surface (e.g., top surface) on which a main image is displayed, and the second region is located on a second surface (e.g., side surface) on which an auxiliary image is displayed.

## Claims

### Claim 1

An electronic device comprising:
a housing including a top surface, a first side surface, a curved surface between the top surface and the first side surface,
a display panel including a display region overlapping with the first side surface,
wherein the display region comprises a protruded portion extending toward the top surface of the housing,
wherein the protruded portion overlaps with the curved surface,
wherein a width of the protruded portion is smaller than a width of the display region, and
wherein the display panel comprises an EL element.

### Claim 2 (depends on 1)

The electronic device according to claim 1,
wherein the housing further includes a second side surface opposite to the first side surface and a third side surface between the first side surface and the second side surface,
wherein the display panel further includes a second display region overlapping with the second side surface and a third display region overlapping with the third side surface,
wherein the third side surface includes a first display element, and
wherein the first display element is capable of reflecting visible light.

### Claim 3

An electronic device comprising:
a housing including a top surface, a first side surface, a second side surface opposite to the first side surface, a third side surface between the first side surface and the second side surface, a first curved surface between the top surface and the first side surface, a second curved surface between the first side surface and the third side surface,
a display panel including a first display region overlapping with the first side surface and a second display region overlapping with the second curved surface,
wherein the first display region comprises a protruded portion extending toward the top surface of the housing,
wherein the protruded portion is over the first curved surface, and
wherein the display panel comprises an EL element.

### Claim 4 (depends on 3)

The electronic device according to claim 3,
wherein the third side surface includes a first display element, and
wherein the first display element is capable of reflecting visible light.