Backlight control method, backlight control device and display apparatus employing a system on chip and a field-programmable gate array

Patent metadata

Field	Value
Publication number	US-9837026-B2
Application number	US-201414316103-A
Country	US
Kind code	B2
Filing date	Jun 26, 2014
Priority date	Feb 7, 2014
Publication date	Dec 5, 2017
Grant date	Dec 5, 2017

Abstract

The present invention provides a backlight control method, a backlight control device and a display apparatus. The backlight control method comprises steps of: acquiring a backlight information and writing the backlight information into a backlight register of system on chip; obtaining a backlight adjusting data based on the backlight information in the backlight register; sending the backlight adjusting data to a backlight control register of a field-programmable gate array, so that the backlight control register obtains a corresponding backlight control register value based on the backlight adjusting data; and adjusting backlight according to the backlight control register value. By correlating backlight option function in the system on chip (SOC) with the field-programmable gate array (FPGA) panel, the users can accomplish the control of the displayed backlight through the menus displayed on the display apparatus. This improves the using experience of the users.

First claim

What is claimed is:

1. A backlight control method, comprising steps of:
inputting backlight adjusting information into a display apparatus through infrared remote control, touch control or sound control by a user, acquiring backlight information and writing the backlight information into a backlight register of a system on chip of the display apparatus;
obtaining backlight adjusting data based on the backlight information in the backlight register;
inputting a full high definition image signal into a field-programmable gate array of the display apparatus, which is configured to input an ultra high definition image information into a display screen of the display apparatus by the system on chip;
sending the backlight adjusting data to a backlight control register of the field-programmable gate array, so that the backlight control register obtains a corresponding backlight control register value based on the backlight adjusting data and the display screen of the display apparatus displays the ultra high definition image information and the backlight adjusting information from the field-programmable gate array; and
adjusting backlight according to the backlight control register value.

2. The backlight control method according to claim 1 ,
wherein the step of obtaining the backlight adjusting data based on the backlight information in the backlight register comprises:
obtaining backlight adjusting data in one-to-one correspondence to the backlight information based on the backlight information in the backlight register;
wherein the backlight information is within a first value range and the backlight adjusting data is within a second value range.

3. The backlight control method according to claim 2 ,
wherein a table is preset, and the backlight adjusting data in one-to-one correspondence to the backlight information is obtained by looking-up the table.

4. The backlight control method according to claim 1 ,
wherein the step of sending the backlight adjusting data to the backlight control register of the field-programmable gate array comprises:
obtaining a backlight data packet based on the backlight adjusting data, the backlight data packet comprising the backlight adjusting data, a data bus device address of the backlight control register and a data bus register address of the backlight control register; and
sending the backlight data packet to the backlight control register through a data bus to amend the backlight control register value in correspondence to the register address.

5. The backlight control method according to claim 4 ,
wherein the data bus comprises an integrated circuit bus.

6. A backlight control device, comprising:
a backlight information acquiring module configured to acquire backlight information from a backlight register of a system on chip, the system on chip being configured to input a full high definition image signal into a field-programmable gate array, which is configured to input an ultra high definition image information into a display screen of a display apparatus, and the backlight information acquiring module comprising:
an adjusting information acquiring sub-module configured to obtain backlight adjusting information inputted into the display apparatus-a through infrared remote control, touch control or sound control by a user; and
a backlight register configured to change the value of the backlight register according to the backlight adjusting information and acquire the backlight information;

a backlight data calculating module configured to obtain backlight adjusting data from the acquired backlight information;
a backlight data sending module configured to send the backlight adjusting data;
a backlight control register provided in the field-programmable gate array, the backlight control register being configured to obtain a corresponding backlight control register value based on the backlight adjusting data from the backlight data sending module, so that the display screen of the display apparatus displays the ultra high definition image information and the backlight adjusting information from the field-programmable gate array; and
a backlight adjusting module configured to adjust backlight according to the backlight control register value.

7. The backlight control device according to claim 6 ,
wherein the backlight data calculating module is further configured to obtain the backlight adjusting data in one-to-one correspondence to the backlight information based on the acquired backlight information,
wherein the backlight information is within a first value range and the backlight adjusting data is within a second value range.

8. The backlight control device according to claim 6 ,
wherein the backlight data sending module is further configured to:
obtain a backlight data packet based on the backlight adjusting data, the backlight data packet comprising the backlight adjusting data, a data bus device address of the backlight control register and a data bus register address of the backlight control register; and
send the backlight data packet to the backlight control register through a data bus to amend the backlight control register value in correspondence to the register address.

9. The backlight control device according to claim 7 ,
wherein, the data bus comprises an integrated circuit bus.

10. A display apparatus, comprising a display screen and a backlight control device, the backlight control device comprising:
a backlight information acquiring module configured to acquire a backlight information from a backlight register of a system on chip, the system on chip being configured to input full high definition image signal into a field-programmable gate array, which is configured to input an ultra high definition image information into the display screen, and the backlight information acquiring module comprising:
an adjusting information acquiring sub-module configured to obtain the backlight adjusting information inputted into the display apparatus through infrared remote control, touch control or sound control by a user; and
a backlight register configured to change the value of the backlight register according to the backlight adjusting information and acquire the backlight information;

a backlight data calculating module configured to obtain backlight adjusting data from the acquired backlight information;
a backlight data sending module configured to send the backlight adjusting data;
a backlight control register provided in the field-programmable gate array, the backlight control register being configured to obtain a corresponding backlight control register value based on the backlight adjusting data from the backlight data sending module, so that the display screen displays the ultra high definition image information and the backlight adjusting information from the field-programmable gate array; and
a backlight adjusting module configured to adjust backlight according to the backlight control register value.

11. The display apparatus according to claim 10 ,
wherein the backlight data calculating module is further configured to obtain the backlight adjusting data in one-to-one correspondence to the backlight information based on the acquired backlight information,
wherein the backlight information is within a first value range and the backlight adjusting data is within a second value range.

12. The display apparatus according to claim 10 ,
wherein the backlight data sending module is further configured to:
obtain a backlight data packet based on the backlight adjusting data, the backlight data packet comprising the backlight adjusting data, a data bus device address of the backlight co

Assignees

• Boe Technology Group Co Ltd
• Beijing Boe Vision-Electronic Tech Co Ltd

Inventors

• Lv Bendeng

Classifications

• G09G3/3406 Primary

  Control of illumination source (illumination devices structurally associated with liquid crystal cells G02F1/1336) · CPC title

• G09G2320/0626

  for control of overall brightness · CPC title