# US 2018/0026083 A1 · Oled display panel, display device and display system

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 2018/0026083 A1
- Document ID: US20180026083A1
- Status: Published application
- Kind: A1
- Application number: 15/723,715
- Filed: 2017-10-03
- Published: 2018-01-25
- Earliest claimed: 2015-09-24
- Assignees: Boe Technology Group Co., Ltd.; Beijing Boe Display Technology Co., Ltd.
- Applicants: Boe Technology Group Co., Ltd.; Beijing Boe Display Technology Co., Ltd.
- Inventors: Liyan Xu; Junwei Wang; Ming Tian; Jiarong Liu
- Web page: https://patentgrep.com/patent/US20180026083A1

## CPC

- H10K 59/50: OLEDs integrated with light modulating elements, e.g. with electrochromic elements, photochromic elements or liquid crystal elements
- 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)}
- H04N 13/31: using parallax barriers
- H04N 13/356: having separate monoscopic and stereoscopic modes
- H04N 13/359: Switching between monoscopic and stereoscopic modes
- H05B 45/60: Circuit arrangements for operating LEDs comprising organic material, e.g. for operating organic light-emitting diodes [OLED] or polymer light-emitting diodes [PLED]
- H05B 47/195: the transmission using visible or infrared light
- G09G 3/003: {to produce spatial visual effects}
- G09G 3/3208: organic, e.g. using organic light-emitting diodes [OLED]
- G09G 2300/04: Structural and physical details of display devices
- G09G 2370/18: Use of optical transmission of display information
- H04N 2213/001: Constructional or mechanical details
- H10K 2102/3031: {Two-side emission, e.g. transparent OLEDs [TOLED]}
- Y02B 20/30: Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
- H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES
- 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)
- H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION
- H05B: ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- Y02B: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS

## Abstract

An OLED display panel, a display device, and a display system. The OLED display panel comprises a base plate, first OLED display elements arranged in an array on a side of the base plate, and a first photochromic layer arranged on a side of the first OLED display elements. The first photochromic layer comprises first stripe shaped photochromic bodies and first stripe shaped openings arranged periodically and alternately, and is switchable between a transparent state and an opaque state. When the first photochromic layer stays in the opaque state, the first photochromic layer enables the OLED display panel to realize 3D display on the side where the first photochromic layer is arranged. 2D and 3D display modes are realized on a side of the display panel, which improves user experience and has a low cost.

## Claims

### Claim 1

An OLED display panel, comprising a base plate, and a plurality of first OLED display elements which are arranged in an array on a side of the base plate,
wherein the OLED display panel further comprises a first photochromic layer, which is arranged on a side of the first OLED display elements, comprises first stripe shaped photochromic bodies and first stripe shaped openings being arranged periodically and alternately, and is switchable between a transparent state and an opaque state; and
wherein the first photochromic layer enables the OLED display panel to realize 3D display on the side where the first photochromic layer is arranged when the first photochromic layer stays in the opaque state;
wherein the OLED display panel further comprises a second photochromic layer, comprising: a plurality of second stripe shaped photochromic bodies and second stripe shaped openings arranged periodically and alternately, and switchable between a transparent state and an opaque state;
wherein the first photochromic layer and the second photochromic layer are arranged on respective side of the base plate; and
wherein the second photochromic layer enables the OLED display panel to realize 3D display on the side where the second photochromic layer is arranged when the second photochromic layer stays in the opaque state.

### Claim 2 (depends on 1)

The OLED display panel of claim 1,
wherein the first OLED display elements are dual side emitting OLED display elements; and
wherein, in a direction perpendicular to the base plate, the second stripe shaped photochromic bodies have projections overlapping those of the first stripe shaped photochromic bodies.

### Claim 3 (depends on 1)

The OLED display panel of claim 1,
wherein the first OLED display elements are single side emitting OLED display elements, and emit light in a direction away from the base plate;
wherein the OLED display panel further comprises second OLED display elements, the second OLED display elements and the first OLED display elements being arranged at respective side of the base plate; and
wherein the second OLED display elements are single side emitting OLED display elements, and emit light in a direction away from the base plate.

### Claim 4 (depends on 1)

The OLED display panel of claim 1,
wherein the OLED display panel further comprises third OLED display elements;
wherein the third OLED display elements and the first OLED display elements are arranged at respective side of the base plate, and the third OLED display elements are arranged alternately with respect to the first OLED display elements;
wherein the first OLED display elements are dual side emitting OLED display elements; and
wherein the third OLED display elements are single side emitting OLED display elements, and emit light in a direction away from the base plate.

### Claim 5 (depends on 1)

The OLED display panel of claim 1, further comprising third OLED display elements,
wherein the third OLED display elements and the first OLED display elements are arranged at respective side of the base plate, and the third OLED display elements are arranged alternately with respect to the first OLED display elements;
wherein the first OLED display elements are single side emitting OLED display elements, and emit light in a direction away from the base plate; and
wherein the third OLED display elements are single side emitting OLED display elements, and emit light in a direction away from the base plate.

### Claim 6 (depends on 1)

The OLED display panel of claim 1,
wherein the first photochromic layer is an ultraviolet photochromic layer; and
wherein the first photochromic layer comprises 2-bis-diphenyl-imidazol paracyclophane doped with titanium dioxide nanoparticles or zinc oxide nanoparticles.

### Claim 7 (depends on 1)

The OLED display panel of claim 1,
wherein the first photochromic layer is an infrared photochromic layer; and
wherein the first photochromic layer comprises bisthienylethenes derivatives doped with titanium dioxide nanoparticles or zinc oxide nanoparticles.

### Claim 8 (depends on 1)

The OLED display panel of claim 1,
wherein the first photochromic layer is an ultraviolet photochromic layer; and
wherein the second photochromic layer is an infrared photochromic layer.

### Claim 9 (depends on 1)

The OLED display panel of claim 1,
wherein the first photochromic layer is an infrared photochromic layer; and
wherein the second photochromic layer is an ultraviolet photochromic layer.

### Claim 10

A display device, comprise OLED display panel, wherein
the OLED display panel comprises:
a base plate;
a plurality of first OLED display elements which are arranged in an array on a side of the base plate;
a first photochromic layer arranged on a side of the first OLED display elements, comprising a plurality of first stripe shaped photochromic bodies and first stripe shaped openings being arranged periodically and alternately, and switchable between a transparent state and an opaque state;
wherein, when the first photochromic layer stays in the opaque state, the first photochromic layer enables the OLED display panel to realize 3D display on the side where the first photochromic layer is arranged;
wherein the OLED display panel further comprises a second photochromic layer, which comprises a plurality of second stripe shaped photochromic bodies and a plurality of second stripe shaped openings which are arranged periodically and alternately, and switchable between a transparent state and an opaque state;
wherein the first photochromic layer and the second photochromic layer are arranged on respective side of the base plate; and
wherein, when the second photochromic layer stays in the opaque state, the second photochromic layer enables the OLED display panel to realize 3D display on the side where the second photochromic layer is arranged.

### Claim 11 (depends on 10)

The display device of claim 10, further comprising a light emitter, which is configured to control the first photochromic layer to switch between the transparent and the opaque state.

### Claim 12 (depends on 10)

The display device of claim 10,
wherein the first OLED display elements are dual side emitting OLED display elements; and
wherein, in a direction perpendicular to the base plate, the second stripe shaped photochromic bodies have projections overlapping those of the first stripe shaped photochromic bodies.

### Claim 13 (depends on 10)

The display device of claim 10,
wherein the first OLED display elements are single side emitting OLED display elements, and emit light in a direction away from the base plate;
wherein the OLED display panel further comprises second OLED display elements, the second OLED display elements and the first OLED display elements being arranged at respective side of the base plate; and
wherein the second OLED display elements are single side emitting OLED display elements, and emit light in a direction away from the base plate.

### Claim 14 (depends on 10)

The display device of claim 10,
wherein the OLED display panel further comprises third OLED display elements;
wherein the third OLED display elements and the first OLED display elements are arranged at respective side of the base plate, and the third OLED display elements are arranged alternately with respect to the first OLED display elements;
wherein the first OLED display elements are dual side emitting OLED display elements; and
wherein the third OLED display elements are single side emitting OLED display elements, and emit light in a direction away from the base plate.

### Claim 15 (depends on 10)

The display device of claim 10,
wherein the OLED display panel further comprises third OLED display elements,
wherein the third OLED display elements and the first OLED display elements are arranged at respective side of the base plate, and the third OLED display elements are arranged alternately with respect to the first OLED display elements;
wherein the first OLED display elements are single side emitting OLED display elements, and emit light in a direction away from the base plate; and
wherein the third OLED display elements are single side emitting OLED display elements, and emit light in a direction away from the base plate.

### Claim 16 (depends on 10)

The display device of claim 10,
wherein the first photochromic layer is an ultraviolet photochromic layer; and
wherein the first photochromic layer comprises 2-bis-diphenyl-imidazol paracyclophane doped with titanium dioxide nanoparticles or zinc oxide nanoparticles.

### Claim 17 (depends on 10)

The display device of claim 10,
wherein the first photochromic layer is an infrared photochromic layer; and
wherein the first photochromic layer comprises bisthienylethenes derivatives doped with titanium dioxide nanoparticles or zinc oxide nanoparticles.

### Claim 18 (depends on 10)

A display system, comprising the display device of claim 10 and a remote control,
wherein the remote control comprises a light emitter, which is configured to control the first photochromic layer to switch between the transparent and the opaque state.