Vehicle display device

A technology for display devices and vehicles, which is applied to identification devices, vehicle components, static indicators, etc., can solve problems such as insufficient contrast of displayed images, reduction, and background brightness that cannot reflect external brightness.

Active Publication Date: 2022-06-21
DENSO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, regardless of the day and night when the external brightness is different, the captured pixel values ​​constituting the camera image are all the same value or close to the value through the filtering process, so that in the disclosed device of Patent Document 1, the determined background brightness cannot reflect the actual Ambient brightness
As a result, there is a possibility that the contrast of the displayed image with respect to the external scenery is insufficient or the contrast is excessively poor, making it difficult to suppress the decrease in visibility.

Method used

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Experimental program
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no. 1 approach

[0042] like figure 1 , 2 As shown, the driving assistance system 1 according to the first embodiment of the present disclosure is mounted on the vehicle 2 . The driving assistance system 1 includes a surrounding monitoring system 3 , a vehicle control system 4 , and a vehicle display device 5 . These elements 3 , 4 , and 5 are connected to each other via an in-vehicle network 6 such as a LAN (Local Area Network), for example.

[0043] like figure 2 As shown, the surrounding monitoring system 3 includes a surrounding sensor 30 and a surrounding monitoring ECU (Electronic Control Unit) 31 . The peripheral sensor 30 detects, for example, other vehicles that may collide outside the vehicle 2, artificial structures, obstacles such as people and animals, and speed signs and various other vehicles that exist outside the vehicle 2 (ie, outside the cabin 2a). Traffic signs such as warning signs, etc. The peripheral sensor 30 is, for example, at least one or more of the external c...

no. 2 approach

[0075] The second embodiment of the present disclosure is a modification of the first embodiment. like Figure 11 As shown, in S103 of the display control flow according to the second embodiment, in S2103b following S103a, the captured pixel value Tc of each pixel of the plurality of pixel portions constituting the specific pixel portion Pc is compared by color. Thus, in S2103b, as Figure 12 The photographed pixel values ​​Tc within the same value or within the same range are extracted by color from the maximum pixel portion Pcm that gives the photographed pixel value Tc within the same value or within the same range the largest number of pixels. here, Figure 12 The maximum pixel portion Pcm that gives the photographed pixel value Tc of the same value the maximum number of pixels is shown. On the other hand, although not shown, the imaging pixel value Tc in the same range refers to each imaging pixel value of the specific pixel portion Pc in a plurality of ranges divided ...

no. 3 approach

[0080] The third embodiment of the present disclosure is a modification of the first embodiment. like Figure 13 As shown, in S103 of the display control flow according to the third embodiment, S3103a, S3103b are executed.

[0081] First in S3103a, select Figure 14 In the shown camera image 33, a single pixel portion captured at a position limited to the outside scenery 8 closer to the front side than at least one of the vanishing point Hp and the horizon H1 and overlapping the display area Ad is taken as the specific pixel portion Pc. At this time, in the third embodiment, as Figure 14 The fixed single pixel portion set in advance in this way is selected as the specific pixel portion Pc. In addition, at this time, in the third embodiment, the captured pixel value Tc of the single pixel portion constituting the selected specific pixel portion Pc is extracted for each color, and stored in the memory 54b. In addition, a single pixel portion as the specific pixel portion Pc...

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Abstract

Display device for vehicle In a vehicle equipped with an external camera that acquires a camera image by photographing external scenery and a brightness sensor that detects the external brightness of the external scenery, a virtual image of a display image can be displayed by projecting a display image on a projection unit that transmits the external scenery. Confirmation in the confirmation area inside the car. The vehicle display device includes: a head-up display that emits light to form a display image; a memory that stores, as correction data, the correlation between the corrected pixel value and the captured pixel value converted from the captured pixel value constituting the camera image through correction corresponding to the brightness of the outside world; a conversion module , based on the correction data stored in the memory, according to the ambient brightness detected by the brightness sensor, in the camera image captured by the external camera, the captured pixel value of a specific pixel portion that is closer to the front side than at least one of the vanishing point and the horizon line is converted into correcting the pixel value; and a display control module, corresponding to the corrected pixel value converted from the shooting pixel value by the conversion module, to control the display brightness of the virtual image of the display image of the head-up display.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS [0002] This application claims the priority of Japanese Patent Application No. 2017-31370 for which it applied on February 22, 2017, the entire content of which is incorporated herein by reference. technical field [0003] The present disclosure relates to a display device for a vehicle that performs virtual image display on a display image so that the display image can be visually recognized in a visual confirmation area in a passenger compartment by projecting a display image on a projection member that transmits the external scenery. Background technique [0004] Conventionally, there has been known a vehicle display device that emits light from a display image projected on a projection member by a head-up display (HUD: Head Up Display). [0005] As one of such vehicle display devices, the device disclosed in Patent Document 1 acquires a camera image in such a way that the background brightness representing the outside brig...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60K35/00B60R11/02G02B27/01G09G5/00G09G5/10G09G5/36
CPCB60K35/00G02B27/01G09G5/10G09F21/049G09F27/005B60K2370/1529B60K2370/349G09G2360/144G09G2320/066G09G2380/10G02B2027/014G02B2027/0138G02B2027/0112G02B2027/0118H04N23/63H04N23/90B60R11/02G09F9/00G09G5/36
Inventor 成濑洋一
Owner DENSO CORP
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