Driving method and driving apparatus, display device

Patent metadata

Field	Value
Publication number	US-10062341-B2
Application number	US-201515126830-A
Country	US
Kind code	B2
Filing date	Oct 13, 2015
Priority date	May 21, 2015
Publication date	Aug 28, 2018
Grant date	Aug 28, 2018

Abstract

A driving method, a driving apparatus and a display device are disclosed. The driving method comprises: forming a first partition overdriving table and a second partition overdriving table. The first partition overdriving table corresponds to the first partition, and the second partition overdriving table corresponds to the second partition. The first partition overdriving table and the second partition overdriving table have the same matrix form. Smooth treatment is performed on a first partition and a second partition which are adjacent to each other according to the first smooth algorithm so as to blur the boundary between the first partition and the second partition, thereby effectively reducing or eliminating the phenomenon of demarcation between multiple partitions.

First claim

The invention claimed is:

1. A driving method, comprising:
partitioning a display area into a plurality of rectangular partitions, a first transitional region formed between a first partition and a second partition which are adjacent to each other;
forming a first partition overdriving table and a second partition overdriving table, the first partition overdriving table corresponding to the first partition, the second partition overdriving table corresponding to the second partition, the first partition overdriving table and the second partition overdriving table having the same matrix form;
performing operational processing on the first partition overdriving table and the second partition overdriving table according to a first smooth algorithm to form a first smooth overdriving table, the first smooth overdriving table corresponding to the first transitional region;
driving the first transitional region according to the first smooth overdriving table,
wherein a first grayscale value of the first partition overdriving table is A, a second grayscale value of the second partition overdriving table is B, a position of the first grayscale value in the matrix form corresponding to that of the second grayscale value therein, A and B being natural numbers; and
wherein said performing operational processing on the first partition overdriving table and the second partition overdriving table according to a first smooth algorithm to form a first smooth overdriving table comprises:
defining a direction from the first partition to the second partition as a first direction;
calculating the number of pixel units of the first transitional region in the first direction as n, wherein n is a natural number; and
wherein said calculating includes starting from the first grayscale value A, a calculation formula of a grayscale value of an m-th pixel unit located within the first transitional region along the first direction being

A
+

B
-
A

n
+
1

*
m

,

 is utilized, wherein n is the number of pixel units, m is a natural number, to form the first smooth overdriving table,
wherein said starting from the first grayscale value A, calculating a grayscale value of an m-th pixel unit located within the first transitional region along the first direction as

A
+

B
-
A

n
+
1

*
m

,

 to form the first smooth overdriving table, comprises:
performing, by an accumulator, accumulation with

B
-
A

n
+
1

 from an initial overdriving grayscale value successively, thereby obtaining corresponding overdriving grayscale values; and
storing the overdriving grayscale values in a memory.

2. The driving method according to claim 1 , wherein the rectangular partitions further include a third partition and a fourth partition, the first partition being arranged adjacent to the second partition and the fourth partition, respectively, the third partition being arranged adjacent to the second partition and the fourth partition, respectively, first transitional regions being formed between adjacent first partition and second partition, between adjacent second partition and third partition, between adjacent third partition and fourth partition, and between adjacent fourth partition and first partition, the first partition, the second partition, the third partition and the fourth partition together defining a second transitional region;
forming a third partition overdriving table and a fourth partition overdriving table simultaneously with said forming the first partition overdriving table and the second partition overdriving table, the third partition overdriving table corresponding to the third partition, the fourth partition overdriving table corresponding to the fourth partition, the first partition overdriving table, the second partition overdriving table, the third partition overdriving table and the fourth partition overdriving table having the same matrix form;
at the same time as said performing operational processing on the first partition overdriving table and the second partition overdriving table according to a first smooth algorithm to form a first smooth overdriving table, performing operational processing on the first partition overdriving table, the second partition overdriving table, the third partition overdriving table and the fourth partition overdriving table according to a second smooth algorithm to form a second smooth overdriving table, the second smooth overdriving table corresponding to the second transitional region;
driving the second transitional region according to the second smooth overdriving table simultaneously with said driving the first transitional region according to the first smooth overdriving table.

3. The driving method according to claim 2 , wherein a third grayscale value of the third partition overdriving table is C, a fourth grayscale value of the fourth partition overdriving table is D, positions of the first grayscale value, the second grayscale value, the third grayscale value and the fourth grayscale value in the matrix form being corresponding to one another, C and D being natural numbers; and
wherein said performing operational processing on the first partition overdriving table, the second partition overdriving table, the third partition overdriving table and the fourth partition overdriving table according to a second smooth algorithm to form a second smooth overdriving table comprises:
calculating a grayscale value of pixel units of the second transitional region as

A
+
B
+
C
+
D

4

,

 to form the second smooth overdriving table.

4. A driving apparatus comprising a partitioning unit, a first forming unit, a second forming unit and a driving unit;
the partitioning unit being used for partitioning a display area into a plurality of rectangular partitions, a first transitional region formed between a first partition and a second partition which are adjacent to each other;
the first forming unit being used for forming a first partition overdriving table and a second partition overdriving table, the first partition overdriving table corresponding to the first partition, the second partition overdriving table corresponding to the second partition, the first partition overdriving table

Assignees

• Boe Technology Group Co Ltd
• Beijing Boe Display Tech Co

Inventors

• He Zongze
• Hu Weihao
• Wang Jieqiong
• Meng Zhiming
• Su Wengang
• Yu Yangbing

Classifications

• G09G2320/0204

  Compensation of DC component across the pixels in flat panels · CPC title

• G09G3/3648

  using an active matrix (G09G3/367 - G09G3/3696 take precedence) · CPC title

• G09G3/3607 Primary

  for displaying colours or for displaying grey scales with a specific pixel layout, e.g. using sub-pixels (display of colours in flat matrix panels other than liquid crystal displays G09G3/2003; grey scales specific for television H04N3/127) · CPC title

• G09G3/36 Primary

  using liquid crystals · CPC title

• G09G2320/0686

  with two or more screen areas displaying information with different brightness or colours · CPC title