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Method and system for realizing screen parameter upgrading of display screen

A display and parameter technology, applied in the direction of responding to errors, software deployment, instruments, etc., can solve the problems of long firmware upgrade time, low production efficiency, inaccuracy, etc., to reduce the complexity of after-sales maintenance, reduce maintenance costs, The effect of improving production efficiency

Active Publication Date: 2020-08-18
GUANGZHOU TONGDA AUTO ELECTRIC +2
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  • Summary
  • Abstract
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AI Technical Summary

Problems solved by technology

When the device is replaced with a different LCD screen, there will be problems that cannot be displayed or displayed incorrectly. It is necessary to update the Android system firmware to solve the problem.
A variety of LCD screens need to use multiple Android system firmware to maintain, which makes the software maintenance cost higher, the repair cost higher, and the firmware upgrade time is long, and the production efficiency is low

Method used

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  • Method and system for realizing screen parameter upgrading of display screen

Examples

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Embodiment

[0025] Such as figure 1 As shown, taking the LCD screen as an example, the method for upgrading the screen parameters of the display screen in the present invention includes the following steps:

[0026] S1. Write the screen parameter data to the specified EMMC screen parameter partition in advance;

[0027] S2, when the system starts, read the screen parameter data in the EMMC screen parameter partition by Uboot; if the screen parameter data is successfully read, it is passed to the kernel, and then proceeds to step S3, otherwise proceeds to step S4;

[0028] When Uboot is started, the screen parameter data in the EMMC screen parameter partition can be read, and the parameters of the screen parameter partition will be automatically read here.

[0029] S3. When the kernel starts, initialize the LCD controller according to the screen parameter data passed in, and output a new resolution to light up the LCD screen;

[0030] S4. The reading of the screen parameter data fails, a...

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Abstract

The invention relates to the technical field of display screen parameter upgrading, and concretely relates to a method and a system for realizing screen parameter upgrading of a display screen. The method comprises the following steps: S1, writing screen parameter data into an EMMC screen parameter partition in advance; S2, reading the screen parameter data in the EMMC screen parameter partition by loading a bootstrap program, if the screen parameter data is successfully read, transmitting the screen parameter data to a kernel, and turning to step S3, otherwise, turning to step S4; S3, starting the kernel, initializing a display screen controller according to the transmitted screen parameter data, and outputting a new resolution to lighten the display screen; and S4, if reading of the screen parameter data fails, replacing the screen parameter data with default screen parameter data, and updating the screen parameter data of the EMMC screen parameter partition. The screen parameters inthe EMMC screen parameter partition are read out through Uboot, the screen parameters are transmitted to the kernel, the EMMC screen parameter partition only needs to be updated through a USB flash disk or an SD card, so the method and the system can adapt to various display screens under the same Android system firmware.

Description

technical field [0001] The invention relates to the technical field of display screen parameter upgrade, in particular to a method and system for realizing screen parameter upgrade of a display screen. Background technique [0002] At present, the existing Android devices with matching display screens (such as LCD screens) will display the default resolution when they leave the factory. If you replace the LCD screen with other resolutions, you need to update the Android system firmware to match the new LCD screen. One type of LCD screen needs to correspond to one Android system firmware, and various LCD screens will have multiple system firmwares that need to be maintained, and these system firmwares have the same functions except that the display output is different. When the device is replaced with a different LCD screen, there will be problems that cannot be displayed or displayed incorrectly, and the Android system firmware needs to be updated to solve it. A variety of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F8/65G06F9/4401G06F11/10
CPCG06F8/65G06F11/1004G06F9/4401
Inventor 邢映彪王东阳雷伟文陶政文
Owner GUANGZHOU TONGDA AUTO ELECTRIC