US 12,737,062 B2 · Display device, authentication method, and program

Abstract

A display device featuring a touch detection and a fingerprint imaging functions is provided. A display device includes a light-emitting element and a light-receiving element. The light-emitting element includes a first pixel electrode, a light-emitting layer, and a common electrode, and the light-receiving element includes a second pixel electrode, an active layer, and the common electrode. The first pixel electrode and the second pixel electrode are provided on the same plane. The common electrode overlaps with the first pixel electrode with the light-emitting layer therebetween, and overlaps with the second pixel electrode with the active layer therebetween. A first conductive layer, a second conductive layer, and an insulating layer are provided above the common electrode. The insulating layer is provided above the first conductive layer, and the second conductive layer is provided above the insulating layer. The light-receiving element has a function of receiving light emitted from the light-emitting element.

Claims20

Dependent claims

A device comprising:

a control portion;
a memory portion;
and
a display portion,
the display portion comprising:
a display element comprising:
a first pixel electrode;
a light-emitting layer;
and
a common electrode,
a light-receiving element comprising:
a second pixel electrode;
an active layer;
and
the common electrode, and
a first conductive layer,
wherein the display element and the light-receiving element are formed over the same side of a substrate,
wherein the first conductive layer is between the display element and the light-receiving element,
wherein the display portion is configured to display an image with the display element on the basis of image data input from the control portion, and
wherein the display portion is configured to take an image of a fingerprint with the light-receiving element and outputting imaging data to the control portion.

17 more elements

An authentication method for an electronic device, the electronic device comprising:

an authentication portion;
and
a display portion comprising:
display elements and light-receiving elements arranged in a matrix;
and
a touch sensor for detecting a touch on the display portion in a portion between the display element and the light-receiving element,
wherein the authentication method comprises:
a step of displaying a first image showing a first position to be touched to a user on the display portion;
a step of detecting a touch on the first position to be touched by the touch sensor;
a step of turning on the display element in a first region comprising the first position to be touched in the display portion;
a step of taking fingerprint data of a first finger in the first region by the light-receiving element and outputting the fingerprint data of the first finger to the authentication portion;
a step of performing first user authentication processing using the fingerprint data of the first finger by the authentication portion;
a step of displaying a second image showing a second position to be touched to the user on the display portion after the first finger is authenticated;
a step of detecting a touch on the second position to be touched by the touch sensor;
a step of turning on the display element in a second region comprising the second position to be touched in the display portion;
a step of taking fingerprint data of a second finger in the second region by the light-receiving element and outputting the fingerprint data of the second finger to the authentication portion;
and
a step of performing second user authentication processing using the fingerprint data of the second finger by the authentication portion.

15 more elements

Dependencies are inferred from the claim text.

Display device, authentication method, and program

Life of this patent

Display device, authentication method, and program

Life of this patent

Abstract

Claims20