公开(公告)号：US20230386416A1

公开(公告)日：2023-11-30

申请号：US18139052

申请日：2023-04-25

Applicant: Alps Alpine Co., LTD.

Inventor： Hiroki OKADA

IPC: G09G3/34

CPC classification number: G09G3/3406 ,  G09G2320/0247 ,  G09G2320/0693 ,  G09G2310/08 ,  G09G2310/061

Abstract: One form of a display device includes: an on-screen display (OSD) video generation unit configured to execute synchronization processing of synchronizing an OSD video with a synchronization signal of an external video while outputting the OSD video when the external video and the OSD video are displayed in a superimposed manner; and an external video processing unit configured not to output the external video during execution of the synchronization processing and to output the external video after completion of the synchronization processing. The videos are prevented from being distorted by not displaying the external video while displaying only the OSD video until the synchronization processing between the OSD video and the external video is completed, and flickering of the video is prevented by continuously displaying the OSD video and preventing a non-displayed black screen from being inserted at a moment when the videos are switched.

公开(公告)号：US20250151488A1

公开(公告)日：2025-05-08

申请号：US18921385

申请日：2024-10-21

Applicant: ALPS ALPINE CO., LTD.

Inventor： Hiroki OKADA

IPC: H01L33/62 ,  H01L25/075

Abstract: A transparent display includes a substrate formed of a transparent material and having a plurality of pixel regions which are partitioned, a plurality of micro-LEDs disposed in each of the plurality of pixel regions, each of the micro-LEDs being configured to emit light of a corresponding color of a plurality of colors, interconnects configured to apply a common drive voltage to the plurality of micro-LEDs included in pixel regions arranged in a same row among the plurality of pixel regions, and a driver configured to generate the common drive voltage and apply the common drive voltage to the interconnects, wherein the interconnects include a plurality of branch interconnects each configured to apply the common drive voltage separately to a corresponding micro-LED of the plurality of micro-LEDs included in a same pixel region of the plurality of pixel regions.

公开(公告)号：US20250108822A1

公开(公告)日：2025-04-03

申请号：US18804335

申请日：2024-08-14

Applicant: ALPS ALPINE CO., LTD.

Inventor： Hiroki OKADA

IPC: B60W50/14 ,  B60W50/00

Abstract: An output sound abnormality detection apparatus includes an output sound generation circuit configured to generate a first sound and a second sound, the first sound being an output target and the second sound having same content as content of the first sound; an amplifier configured to amplify and output the first sound and the second sound; a comparator configured to compare signal levels of the first sound and the second sound output from the amplifier; and an abnormality determination circuit configured to determine whether there is an abnormality in one or both of the first sound generated by the output sound generation circuit and the amplifier based on a comparison result obtained by the comparator.

公开(公告)号：US20230134109A1

公开(公告)日：2023-05-04

申请号：US17972829

申请日：2022-10-25

Applicant: Alps Alpine Co., LTD.

Inventor： Hiroki OKADA

IPC: G09G3/00 ,  G09G3/20

Abstract: One form of a displaying unit combines a first screen, a second screen, and a third screen generated by a rendering unit so as to be arranged in a horizontal direction, and displays the combined screens on a display unit. A timer counter circuit causes the abnormality monitoring unit to set the black screen layer ON of the screen in which normality of each part related to the screen cannot be detected at a time interval shorter than a predetermined time, and the displaying unit displays the screen in a black screen by superimposing and displaying a black screen layer on the screen in which the black screen layer of being ON has been set.