US-12620331-B2 - Display device displaying a three-dimensional image

US12620331B2US 12620331 B2US12620331 B2US 12620331B2US-12620331-B2

Abstract

A display device includes a display panel including a first display region, and a second display region positioned at a predetermined angle with respect to the first display region, an optical module which reflects light emitted from the first display region, and transmits light emitted from the second display region, and a panel driver which drives the display panel, where the panel driver performs a pixel shift operation in a way such that first and second images respectively displayed in the first and second display regions are shifted in opposite directions along a first direction, and are shifted in a same direction along a second direction substantially perpendicular to the first direction.

Inventors

Hyomin KIM
Gi-Na Yoo
Sang Min Hong

Assignees

SAMSUNG DISPLAY CO., LTD.

Dates

Publication Date: 20260505
Application Date: 20250114
Priority Date: 20240717

Claims (19)

1 . A display device comprising: a display panel including a first display region, and a second display region positioned at a predetermined angle with respect to the first display region; an optical module comprising a beam splitter, the optical module being configured to reflect light emitted from the first display region, and transmit light emitted from the second display region; and a panel driver which drives the display panel, wherein, to prevent image distortion for a user viewing the display panel, the panel driver performs a pixel shift operation in a way such that first and second images respectively displayed in the first and second display regions are shifted in opposite directions along a first direction, and are shifted in a same direction along a second direction substantially perpendicular to the first direction, wherein the display panel further includes a third display region facing the first display region, and positioned substantially perpendicular to the second display region, and wherein light emitted from the third display region is reflected from an inclined surface of the optical module, moves toward the second display region, is reflected again from the second display region, and is provided to the user by being transmitted through the inclined surface of the optical module.
2 . The display device of claim 1 , wherein the display panel is bent in a way such that the first display region and the second display region are substantially perpendicular to each other, wherein the beam splitter includes an inclined surface, and wherein the beam splitter divides light emitted from each of the first and second display regions and incident on the inclined surface into reflected light and transmitted light.
3 . The display device of claim 2 , wherein the reflected light of the first display region, which is emitted from the first display region and is reflected from the inclined surface of the beam splitter, is provided to the user, and wherein the transmitted light of the second display region, which is emitted from the second display region and transmits through the inclined surface of the beam splitter, is provided to the user.
4 . The display device of claim 1 , wherein the first direction is a direction substantially perpendicular to a boundary line between the first display region and the second display region, and wherein the second direction is an extending direction of the boundary line between the first display region and the second display region.
5 . The display device of claim 1 , wherein the first direction is a scan direction in which scan signals are sequentially output, and wherein the second direction is an extending direction of each of scan lines through which the scan signals are transferred.
6 . The display device of claim 1 , wherein the panel driver shifts the first image displayed in the first display region in an up direction by a pixel shift amount, and shifts the second image displayed in the second display region in a down direction by the pixel shift amount.
7 . The display device of claim 6 , wherein the panel driver generates interpolated data by interpolating image data for a lowermost pixel row in the first display region and image data for an uppermost pixel row in the second display region, and wherein the display panel displays an image based on the interpolated data in a blank region between the first image and the second image when the first image and the second image are shifted.
8 . The display device of claim 6 , wherein the display panel displays a black image in a blank region between the first image and the second image when the first image and the second image are shifted.
9 . The display device of claim 1 , wherein the panel driver shifts the first image displayed in the first display region in a left direction by a pixel shift amount, and shifts the second image displayed in the second display region in the left direction by the pixel shift amount.
10 . The display device of claim 1 , wherein the panel driver is configured to store information about the first direction and the second direction, store information about the first display region and the second display region, store information about a pixel shift amount of the pixel shift operation, perform the pixel shift operation, and generate image data for a blank region or an overlap region generated by the pixel shift operation.
11 . The display device of claim 1 , wherein the panel driver shifts a third image displayed in the third display region such that the first and third images are shifted in opposite directions along the first direction, the second and third images are shifted in a same direction along the first direction, and the first, second and third images are shifted in a same direction along the second direction.
12 . A display device comprising: a display panel including a first display region and a second display region, wherein the display panel is bent in a way such that the first display region and the second display region are substantially perpendicular to each other; an optical module including an inclined surface, wherein the optical module reflects light emitted from the first display region on the inclined surface, and transmits light emitted from the second display region on the inclined surface; and a panel driver which drives the display panel, wherein the panel driver performs a pixel shift operation, wherein, to prevent image distortion for a user viewing the display panel, when a first image displayed in the first display region is shifted in an up direction, the panel driver shifts a second image displayed in the second display region in a down direction, wherein, when the first image is shifted in the down direction, the panel driver shifts the second image in the up direction, wherein, when the first image is shifted in a left direction, the panel driver shifts the second image in the left direction, and wherein, when the first image is shifted in a right direction, the panel driver shifts the second image in the right direction, wherein the display panel further includes a third display region facing the first display region, and positioned substantially perpendicular to the second display region, and wherein light emitted from the third display region is reflected from the inclined surface of the optical module, moves toward the second display region, is reflected again from the second display region, and is provided to the user by being transmitted through the inclined surface of the optical module.
13 . A display device comprising: a display panel including a first display region, a second display region and a third display region, wherein the display panel is bent in a way such that the first display region and the third display region face each other and the second display region is substantially perpendicular to each of the first display region and the third display region; an optical module including an inclined surface, where the optical module divides light emitted from each of the first, second and third display regions and incident on the inclined surface into reflected light and transmitted light; and a panel driver which drives the display panel, wherein the panel driver performs a pixel shift operation, wherein, when a first image displayed in the first display region is shifted in an up direction, the panel driver shifts a second image displayed in the second display region in a down direction, and shifts a third image displayed in the third display region in the down direction, wherein, when the first image is shifted in the down direction, the panel driver shifts the second image in the up direction, and shifts the third image in the up direction, wherein, when the first image is shifted in a left direction, the panel driver shifts the second image in the left direction, and shifts the third image in the left direction, and wherein, when the first image is shifted in a right direction, the panel driver shifts the second image in the right direction, and shifts the third image in the right direction.
14 . An electronic device comprising: a processor configured to provide input image data; a display panel including a first display region, and a second display region positioned at a predetermined angle with respect to the first display region; an optical module comprising a beam splitter, the optical module being configured to reflect light emitted from the first display region, and transmit light emitted from the second display region; and a panel driver which receives the input image data from the processor, and drives the display panel based on the input image data, wherein, to prevent image distortion for a user viewing the display panel, the panel driver performs a pixel shift operation in a way such that first and second images respectively displayed in the first and second display regions are shifted in opposite directions along a first direction, and are shifted in a same direction along a second direction substantially perpendicular to the first direction, wherein the display panel further includes a third display region facing the first display region, and positioned substantially perpendicular to the second display region, and wherein light emitted from the third display region is reflected from an inclined surface of the optical module, moves toward the second display region, is reflected again from the second display region, and is provided to the user by being transmitted through the inclined surface of the optical module.
15 . The electronic device of claim 14 , wherein the display panel is bent in a way such that the first display region and the second display region are substantially perpendicular to each other, wherein the beam splitter includes an inclined surface, and wherein the beam splitter divides light emitted from each of the first and second display regions and incident on the inclined surface into reflected light and transmitted light.
16 . The electronic device of claim 15 , wherein the reflected light of the first display region, which is emitted from the first display region and is reflected from the inclined surface of the beam splitter, is provided to the user, and wherein the transmitted light of the second display region, which is emitted from the second display region and transmits through the inclined surface of the beam splitter, is provided to the user.
17 . The electronic device of claim 14 , wherein the first direction is a direction substantially perpendicular to a boundary line between the first display region and the second display region, and wherein the second direction is an extending direction of the boundary line between the first display region and the second display region.
18 . The electronic device of claim 14 , wherein the first direction is a scan direction in which scan signals are sequentially output, and wherein the second direction is an extending direction of each of scan lines through which the scan signals are transferred.
19 . The electronic device of claim 14 , wherein the panel driver shifts the first image displayed in the first display region in an up direction by a pixel shift amount, and shifts the second image displayed in the second display region in a down direction by the pixel shift amount.

Description

This application claims priority to Korean Patent Application No. 10-2024-0094121, filed on Jul. 17, 2024, and all the benefits accruing therefrom under 35 U.S.C. § 119, the content of which in its entirety is herein incorporated by reference. BACKGROUND 1. Field Embodiments of the invention relate to a display device, and more particularly to a display device that displays a three-dimensional image. 2. Description of the Related Art In general, a stereoscopic image display device may display a three-dimensional image using binocular parallax by providing different images to left and right eyes of a user. However, there is a problem that the user may feel dizzy if the user continuously watches the three-dimensional image displayed using the binocular parallax. Recently, a display device that does not use that binocular parallax but uses display panels positioned at different distances from a user to display a three-dimensional image has been developed. In such a display device, the user may feel depth perception (or stereoscopic perception) based on the difference in distance or focal length of the display panels. SUMMARY Some embodiments provide a display device capable of displaying a three-dimensional image and performing a pixel shift operation without image distortion. According to embodiments, there is provided a display device including a display panel including a first display region, and a second display region positioned at a predetermined angle with respect to the first display region, an optical module which reflect slight emitted from the first display region, and transmits light emitted from the second display region, and a panel driver which drives the display panel, where the panel driver performs a pixel shift operation in a way such that first and second images respectively displayed in the first and second display regions are shifted in opposite directions along a first direction, and are shifted in a same direction along a second direction substantially perpendicular to the first direction. In embodiments, the display panel may be bent in a way such that the first display region and the second display region are substantially perpendicular to each other, and the optical module may include a beam splitter including an inclined surface, where to the beam splitter divides light emitted from each of the first and second display regions and incident on the inclined surface into reflected light and transmitted light. In embodiments, the reflected light of the first display region, which is emitted from the first display region and is reflected from the inclined surface of the beam splitter, may be provided to a user, and the transmitted light of the second display region, which is emitted from the second display region and transmits through the inclined surface of the beam splitter, may be provided to the user. In embodiments, the first direction may be a direction substantially perpendicular to a boundary line between the first display region and the second display region, and the second direction may be an extending direction of the boundary line between the first display region and the second display region. In embodiments, the first direction may be a scan direction in which scan signals are sequentially output, and the second direction may be an extending direction of each of scan lines through which the scan signals are transferred. In embodiments, the panel driver may shift a first image displayed in the first display region in an up direction by a pixel shift amount, and may shift the second image displayed in the second display region in a down direction by the pixel shift amount. In embodiments, the panel driver may generate interpolated data by interpolating image data for a lowermost pixel row in the first display region and image data for an uppermost pixel row in the second display region, and the display panel may display an image based on the interpolated data in a blank region between the first image and the second image when the first image and the second image are shifted. In embodiments, the display panel may display a black image in a blank region between the first image and the second image when the first image and the second image are shifted. In embodiments, the panel driver may shift the first image displayed in the first display region in a down direction by a pixel shift amount, and may shift the second image displayed in the second display region in an up direction by the pixel shift amount. In embodiments, the display panel may display a black image in an overlap region where the first image and the second image overlap. In embodiments, the panel driver may generate average data of image data for the first and second display regions with respect to an overlap region, and the display panel may display an image based on the average data in the overlap region where the first image and the second image overlap when the first image and the second image are shifted. In e