On-vehicle display system and display panel control device

• US 8,073,620 B2
• Filed: 07/24/2007
• Issued: 12/06/2011
• Est. Priority Date: 08/11/2006
• Status: Active Grant

• Current Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Original Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Inventors: Okamoto, Toshiya
• Primary Examiner(s): Trammell, James
• Assistant Examiner(s): Shafi, Muhammad
• Application Number:
  US12/305,002
• Publication Number:
  US 20090204290A1
• Time in Patent Office: 1,596 Days
• Field of Search: 701/36, 701/1, 701200-226, 340988-996, 340/539.25, 342/46, 342/357.21, 342/357.22, 342/357.39, 715/737, 715/738, 715/850, 715/851, 715/854, 715/FOR.207, 715/FOR.178, 715/972, 715/756, 715716-723, 715/727, 715/728, 725/10, 725/53, 725105-118
• US Class Current: 701/211
• CPC Class Codes: G01C 21/3667 Display of a road map G01C21/3614 takes precedence; guidance using 3D or perspective road maps G01C21/3635
• CPC Class Codes: G09G 2340/0407 Resolution change, inclusive of the use of different resolutions for different screen areas
• CPC Class Codes: G09G 3/3611 Control of matrices with row and column drivers
• CPC Class Codes: G09G 5/363 Graphics controllers

Abstract

An instrument panel display system includes a liquid crystal panel and a liquid crystal controller arranged to generate display data to be inputted into the liquid crystal panel. The liquid crystal controller includes a graphic LSI arranged to autonomously create screen data from imaging data read out from a memory and image data inputted in the graphic LSI, and a control LSI arranged to receive vehicle data and create an imaging operation switching command according to the vehicle data. The graphic LSI creates the screen data in response to the imaging operation switching command, and outputs the screen data as the display data. This configuration can reduce the load on a processor connected to the vehicle network.

Claims

1. An on-vehicle display system comprising:

a display panel; and

a data generating section arranged to generate display data to be inputted into the display panel, the data generating section including;

a plurality of image data generating processors arranged to generate respective image data of images which are different from each other;

a first processor arranged to generate the display data; and

a second processor arranged to receive vehicle data indicative of a vehicle running condition and to create an imaging operation switching command according to the vehicle data;

wherein

the plurality of image data generating processors autonomously generate the respective image data without depending on the imaging operation switching command; and

the first processor is arranged to generate the display data by combining, according to the imaging operation switching command, the respective image data generated by the plurality of image data generating processors.

2. The on-vehicle display system according to claim 1, wherein the second processor is connected to an in-vehicle network, and the vehicle data is inputted from the in-vehicle network.

3. The on-vehicle display system according to claim 2, wherein the in-vehicle network is one of a Controller Area Network, a Local Interconnect Network, or a FlexRay.

4. The on-vehicle display system according to claim 3, wherein the image data is inputted into the first processor via a network other than the in-vehicle network.

5. The on-vehicle display system according to claim 1, wherein the image data contains moving image data.

6. The on-vehicle display system according to claim 5, wherein the moving image data contains video picture data obtained from a CCD provided on a vehicle.

7. The on-vehicle display system according to claim 5, wherein the moving image data contains at least one video picture data from the group consisting of a navigation unit, a DVD, and a TV.

8. The on-vehicle display system according to claim 1, wherein the first processor generates the display data according to a drawing program read out from a memory, the respective image data generated by the plurality of image data generating processors, and the imaging operation switching command.

9. The on-vehicle display system according to claim 8, wherein the imaging data contains still image data.

10. The on-vehicle display system according to claim 1, wherein the first processor includes a graphic LSI and the second processor includes a control LSI.

11. The on-vehicle display system according to claim 1, wherein the plurality of image data generating processors include:

a vehicle system processor arranged to generate image data indicative of the vehicle running condition;

an amenity system processor arranged to generate image data of at least one of a navigation image, a DVD image, and a TV image; and

a safety system processor arranged to generate image data of at least one of a vehicle surrounding image captured by an on-vehicle camera and an image indicative of vehicle safety information detected according to the vehicle surrounding image.