EP-4737181-A1 - DISPLAY DEVICE FOR VEHICLE

EP4737181A1EP 4737181 A1EP4737181 A1EP 4737181A1EP-4737181-A1

Abstract

A display apparatus for a vehicle is disclosed. A display apparatus for a vehicle according to an embodiment of the present disclosure includes: a picture generation device including a light output device and configured to output a projection image; a first screen including one surface on which a first projection image corresponding to a portion of the projection image from the picture generation device is projected; a first mirror configured to reflect a second projection image corresponding to another portion of the projection image from the picture generation device; a second mirror configured to reflect the second projection image from the first mirror; and a second screen horizontally adjacent to the first screen and having one surface on which the second projection image reflected from the second mirror is projected. Accordingly, a plurality of displays can be integrally implemented using a single picture generation device.

Inventors

Kim, Jinyong
JUNG, Youngho

Assignees

LG Electronics Inc.

Dates

Publication Date: 20260506
Application Date: 20240223

Claims (20)

A display apparatus for a vehicle, the display apparatus comprising: a picture generation device including a light output device and configured to output a projection image; a first screen including one surface on which a first projection image corresponding to a portion of the projection image from the picture generation device is projected; a first mirror configured to reflect a second projection image corresponding to another portion of the projection image from the picture generation device; a second mirror configured to reflect the second projection image from the first mirror; and a second screen horizontally adjacent to the first screen, the second screen including one surface on which the second projection image reflected from the second mirror is projected.
The display apparatus of claim 1, wherein the second mirror is a concave mirror.
The display apparatus of claim 2, wherein a center of the second mirror is closer to the second screen than end portions of the second mirror.
The display apparatus of claim 2, wherein a center of the second mirror is spaced farther from the second screen than end portions of the second mirror.
The display apparatus of claim 4, wherein the second projection image projected from the picture generation device is an inverted image.
The display apparatus of claim 1, further comprising a first actuator configured to change a position or an angle of the first mirror.
The display apparatus of claim 1, further comprising a signal processing device configured to control the first actuator, wherein, based on a change in the position or angle of the first mirror, the signal processing device is configured to change a size of the second projection image projected onto the second screen.
The display apparatus of claim 1, further comprising a third mirror configured to reflect a third projection image corresponding to another portion of the projection image from the picture generation device, wherein the second mirror reflects the third projection image from the third mirror.
The display apparatus of claim 8, wherein the second projection image is displayed in a first area of the second screen, and the third projection image is displayed in a second area of the second screen.
The display apparatus of claim 8, wherein the picture generation device outputs the second projection image between the first projection image and the third projection image.
The display apparatus of claim 8, wherein the third projection image is displayed in an area of the second screen closer to the first screen, and the second projection image is displayed in an area of the second screen spaced farther from the first screen.
The display apparatus of claim 8, wherein the third projection image reflected from the third mirror is incident on the second mirror while being spaced apart from the first mirror.
The display apparatus of claim 8, wherein at least a portion of the third projection image reflected from the third mirror is transmitted through the first mirror and is incident on the second mirror.
The display apparatus of claim 8, further comprising a first actuator configured to change a position or an angle of the first mirror.
The display apparatus of claim 14, further comprising a signal processing device configured to control the first actuator, wherein, based on a change in the position or angle of the first mirror, the signal processing device is configured to change a size of the second projection image projected onto the second screen.
The display apparatus of claim 8, wherein: in response to outputting the first projection image and the second projection image from the picture generation device, the first projection image is displayed on the first screen, and the second projection image is displayed on the second screen; and in response to outputting the first projection image, the second projection image, and the third projection image from the picture generation device, the first projection image is displayed on the first screen, and the second projection image and the third projection image are displayed on the second screen.
The display apparatus of claim 16, wherein: in response to outputting the first projection image and the second projection image from the picture generation device, the first mirror is at a first position; and in response to outputting the first projection image, the second projection image, and the third projection image from the picture generation device, the first mirror is at a second position.
The display apparatus of claim 8, further comprising a second actuator configured to change a position or an angle of the second mirror.
A display apparatus for a vehicle, the display apparatus comprising: a picture generation device including a light output device and configured to output a projection image; a first screen including one surface on which a first projection image corresponding to a portion of the projection image from the picture generation device is projected; a first mirror configured to reflect a second projection image corresponding to another portion of the projection image from the picture generation device; a second mirror configured to reflect the second projection image from the first mirror; a third mirror configured to reflect a third projection image corresponding to another portion of the projection image from the picture generation device; and a second screen horizontally adjacent to the first screen, the second screen including one surface on which at least one of the second projection image reflected from the second mirror or the third projection image is projected.
A display apparatus for a vehicle, the display apparatus comprising: a picture generation device including a light output device and configured to output a first projection image, which is a portion of a projection image, and a second projection image corresponding to another portion of the projection image; a first mirror configured to reflect the second projection image from the picture generation device; a second mirror configured to reflect the second projection image from the first mirror; and a screen including a first area on which the first projection image from the picture generation device is projected and a second area on which the second projection image from the second mirror is projected.

Description

BACKGROUND 1. Field The present disclosure relates to a display apparatus for a vehicle, and more particularly, to a display apparatus for a vehicle capable of implementing a plurality of displays in an integrated manner using a single picture generation device. 2. Description of the Related Art A vehicle is a machine that allows a user who rides therein to move in a desired direction. A representative example of the vehicle is a car. Meanwhile, for convenience of vehicle users, some vehicles are equipped with a display apparatus or device. For example, a display is positioned on an instrument cluster to present various types of information. In addition to the cluster display, in order to display vehicle driving information and the like, various displays, such as a center information display (CID) and a head-up display that outputs a projection image onto a windshield, are increasingly being mounted in vehicles. As various displays are disposed in a vehicle, methods for operating the displays in an integrated manner have been studied. Meanwhile, Japanese Laid-open Patent Publication No. 11-59224 (hereinafter referred to as "Prior Art Document 1"), which is hereby incorporated by reference, discloses a front window display device that adjusts the brightness of a head-up display (HUD) of the window display device based on data of an illuminance sensor. However, in Prior Art Document 1, only the window display device is disclosed, and thus it has a limitation in that integrated operation of various displays is difficult. Meanwhile, U.S. Patent Publication No. US10298890 (hereinafter referred to as "Prior Art Document 2"), which is hereby incorporated by reference, discloses a vehicle display device that projects an image using a cluster display. However, in Prior Art Document 2, only the cluster display is disclosed, and thus it has a limitation in that integrated operation of various displays is difficult. SUMMARY It is an object of the present disclosure to provide a display apparatus for a vehicle capable of implementing a plurality of displays in an integrated manner using a single picture generation device. It is another object of the present disclosure to provide a display apparatus for a vehicle capable of implementing a cluster display and a center information display in an integrated manner using a single picture generation device. In accordance with an aspect of the present disclosure, the above and other objects can be accomplished by providing a display apparatus for a vehicle including: a picture generation device including a light output device and configured to output a projection image; a first screen including one surface on which a first projection image corresponding to a portion of the projection image from the picture generation device is projected; a first mirror configured to reflect a second projection image corresponding to another portion of the projection image from the picture generation device; a second mirror configured to reflect the second projection image from the first mirror; and a second screen horizontally adjacent to the first screen and having one surface on which the second projection image reflected from the second mirror is projected. The second mirror can be a concave mirror. A curvature of the second mirror can be greater than a curvature of the first mirror. A center of the second mirror can be closer to the second screen than end portions of the second mirror. A center of the second mirror can be spaced farther from the second screen than end portions of the second mirror. The second projection image projected from the picture generation device can be an inverted image. The display apparatus can further include a first actuator configured to change a position or an angle of the first mirror. The display apparatus can further include a signal processing device configured to control the first actuator. Based on a change in the position or angle of the first mirror, the signal processing device can be configured to change a size of the second projection image projected onto the second screen. The display apparatus can further include a third mirror configured to reflect a third projection image corresponding to another portion of the projection image from the picture generation device. The second mirror can reflect the third projection image from the third mirror. The second projection image can be displayed in a first area of the second screen, and the third projection image can be displayed in a second area of the second screen. The picture generation device can output the second projection image between the first projection image and the third projection image. The third projection image can be displayed in an area of the second screen closer to the first screen, and the second projection image can be displayed in an area of the second screen spaced farther from the first screen. The third projection image reflected from the third mirror can be incident on the seco