METHOD AND MOBILE TERMINAL FOR CONTROLLING DISPLAY OF WAITING INFORMATION DURING PROGRAM STARTUP

• US 20120256935A1
• Filed: 01/24/2011
• Published: 10/11/2012
• Est. Priority Date: 02/03/2010
• Status: Active Grant

• Current Assignee: Hisense Mobile Communications Technology Co., Ltd. (Qingdao Huatong State-Owned Capital Operation Company Limited)
• Original Assignee: Hisense Mobile Communications Technology Co., Ltd. (Qingdao Huatong State-Owned Capital Operation Company Limited)
• Inventors: Zuo, Jian
• Granted Patent: US 9,201,660 B2
• Time in Patent Office: Days
• US Class Current: 345/547
• CPC Class Codes: G06F 9/4401 Bootstrapping security arrangements therefor G06F21/57
• CPC Class Codes: G09G 2330/026 Arrangements or methods related to booting a display
• CPC Class Codes: G09G 5/395 Arrangements specially adapted for transferring the contents of the bit-mapped memory to the screen G09G5/399 takes precedence
• CPC Class Codes: G09G 5/399 using two or more bit-mapped memories, the operations of which are switched in time, e.g. ping-pong buffers

Abstract

A method and a mobile terminal for controlling display of waiting information during program startup are disclosed, relating to the field of computers. In the invention, a step of initializing a liquid crystal display (LCD) by a kernel is eliminated, and an LCD controller is reinitialized after the waiting information data in a bootloader display memory is copied to the display memory of the kernel, therefore, the LCD can directly read the waiting information data in the display memory of the kernel according to a display memory first address in the LCD controller. The waiting information data in the bootloader display memory is copied to the display memory of the kernel in advance, therefore, the displayed content is not changed completely for users. In addition, the step of initializing the LCD is eliminated, so that the phenomena of distortion, flashing, blurred screen and the like of the LCD screen display are completely avoided, the display quality during program startup is improved, and better visual experience is brought for users.

Claims

1. A method for controlling display of waiting information during program startup, comprising:

initializing, by a bootloader, a Liquid Crystal Display, LCD, according to a received kernel program startup instruction, distributing a first video memory, initializing a first address of the first video memory to an LCD controller and starting a kernel program after the pre-startup is completed;

distributing a second video memory after the startup of the kernel program, copying waiting information data in the first video memory to the second video memory and reinitializing a first address of the second video memory to the LCD controller; and

acquiring the first address of the video memory from the LCD controller at a set frequency after the LCD is initialized by the bootloader, reading and displaying the waiting information data in the first video memory when the first address of the first video memory is acquired, and reading and displaying the waiting information data in the second video memory when the first address of the second video memory is acquired.

2. The method of claim 1, wherein initializing the LCD by the bootloader comprises:

initializing, by the bootloader, the LCD according to a display quality required by the program to be started.

3. The method of claim 1, wherein copying the waiting information data in the first video memory to the second video memory by the kernel program comprises:

determining an initial address of the first video memory;

determining an initial address for storing the waiting information data in the first video memory, and acquiring the waiting information data; and

copying the waiting information data in the first video memory to the second video memory.

4. The method of claim 3, wherein the initial address of the first video memory, determined by the kernel program, is:

an initial address of a memory in which the first video memory is located plus a size of the whole memory and subtract 2 M space.

5. The method of claim 3, wherein the initial address for storing the waiting information data in the first video memory, determined by the kernel program, is:

the sum of the initial address of the first video memory and 20 bytes.

6. The method of claim 1, further comprising:

after the LCD controller is initialized according to the address of the second video memory,

modifying the waiting information data copied to the second video memory from the first video memory in the second video memory.

11. The method of claim 4, wherein the initial address for storing the waiting information data in the first video memory, determined by the kernel program, is:

the sum of the initial address of the first video memory and 20 bytes.

7. A mobile terminal, comprising:

a memory configured to distribute a video memory, an LCD configured to read waiting information data in the video memory according to a first address of the video memory in an LCD controller after being initialized and to display, a CPU configured to connect the LCD with the memory, and the LCD controller arranged in the CPU, wherein the CPU further comprises;

a pre-startup unit configured to initialize the LCD after receiving a kernel program startup instruction, distribute a first video memory for storing waiting information data to be displayed in the memory, store the waiting information data to be displayed in the first video memory, initialize a first address of the first video memory to the LCD controller and trigger to start a kernel program after the pre-startup is completed; and

a kernel unit configured to start the kernel program, distribute a second video memory for storing the waiting information data in the memory, copy the waiting information data in the first video memory to the second video memory, and reinitialize a first address of the second video memory to the LCD controller.

8. The mobile terminal of claim 7, wherein the pre-startup unit initializes the LCD according to a display quality required by the program to be started.

9. The mobile terminal of claim 7, wherein the kernel unit copies the waiting information data in the first video memory to the second video memory, comprising:

distributing the second video memory and determining an initial address of the first video memory;

determining an initial address for storing the waiting information data in the first video memory, and acquiring the waiting information data; and

copying the waiting information data in the first video memory to the second video memory.

10. The mobile terminal of claim 7, wherein the kernel unit is further configured to modify the waiting information data copied to the second video memory from the first video memory in the second video memory.