JPH0784549A - Gradation control system - Google Patents

Abstract

PURPOSE:To eliminate usual regulations that a pattern looks like flowing and to realize clear gradation display by fetching information on the optional lighting pattern of an optional matrix among plural matrices corresponding to gradation from a matrix lighting pattern selection table and repeating the control of sequential lighting based on the information in the case of gradation display. CONSTITUTION:This system is provided with a lighting pattern selection control 3 sequentially selecting the information on the matrix and the lighting pattern of the matrix corresponding to the gradation of display data designated to be displayed from the matrix lighting pattern selection table 4 corresponding to the designation of display and fetching the lighting pattern of the matrix corresponding to the selected information from a matrix table 5, and a lighting control 6 performing sequential lighting according to the sequentially selected information on the lighting pattern of the matirx.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gradation control system for controlling gradation by combining a plurality of matrices.

[0002]

2. Description of the Related Art Conventionally, in the case of controlling the gradation with an LCD panel or the like, for example, when 16 gradations are set, 14 gradations other than white and black gradations are assigned to a matrix of XX, and this is assigned to a frame. The gradation was controlled by repeatedly turning on the light for each time. For example, as shown in FIG. 6, when ∘ × ∘ is assigned to a 4 × 4 matrix and 1/4 lighting is realized, first lighting, second lighting, third lighting, and
The lighting of the second time is controlled repeatedly. In the figure, □ represents lighting (pixel), and ■ represents extinguishing (pixel). Similarly, 3x3
When the matrix of is assigned, the first lighting in the figure,
The lighting is controlled repeatedly for the second lighting and the third lighting.

[0003]

4 × 4 in FIG. 6 described above.
1st lighting, 2nd lighting, 3rd lighting,
When the fourth lighting is repeated and 1/4 lighting is performed, there is a problem that the lighting pattern on the matrix (here, the pattern from the upper right to the lower left) seems to flow in the left direction. In order to avoid seeing this flowing in a certain direction, even if the regularity of the lighting pattern of the matrix is eliminated, the same pattern is repeated,
I couldn't solve the problem that the patterns seemed to flow.

The present invention solves these problems.
When displaying gradations, the information on the arbitrary lighting pattern of the arbitrary matrix is extracted from the matrix corresponding to the gradation from the matrix / lighting pattern selection table, and the lighting control is repeated based on this information. The purpose of the present invention is to eliminate the regularity that a conventional pattern looks like and to display a beautiful gradation.

[0005]

[Means for Solving the Problems] Means for solving the problems will be described with reference to FIG. In FIG. 1, the lighting pattern selection control 3 sequentially selects, from the matrix / lighting pattern selection table 4, the matrix corresponding to the gradation of the display data and the information of the lighting pattern, and corresponds to the selected information from the matrix table 5. The matrix lighting pattern is taken out.

Matrix / lighting pattern selection table 4
Is for setting the information of the matrix and the lighting pattern that are sequentially turned on in association with the gradation. The matrix table 5 is a table in which lighting patterns of a plurality of matrices are registered.

The lighting control 6 is for sequentially lighting according to the lighting pattern of the matrix taken out.

[0008]

According to the present invention, as shown in FIG. 1, in response to a display instruction, the lighting pattern selection control 3 selects from the matrix / lighting pattern selection table 4 the matrix corresponding to the gradation of the display data for which the display instruction is given. And the information of the lighting patterns thereof are sequentially selected, and the lighting patterns of the matrix corresponding to the selected information are sequentially taken out from the matrix table 5, and the lighting control 6 turns on the lighting patterns of the taken-out matrix.

At this time, in the lighting pattern selection table 4,
At least two kinds of matrisks and their lighting patterns are selected from a plurality of different m × n matrix lighting patterns and are preset in association with the gradation.

Therefore, when displaying gradation, the matrix
By retrieving the information of the arbitrary lighting pattern of the arbitrary matrix corresponding to the gradation from the lighting pattern selection table 4 and repeating the lighting control according to the lighting pattern of the corresponding matrix fetched from the matrix table 5, the conventional pattern is obtained. It is possible to eliminate the regularity that appears as a stream and display a beautiful gradation.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the construction and operation of an embodiment of the present invention will be described in detail with reference to FIGS.

FIG. 1 is a block diagram showing the principle of the present invention. Figure 1
In the above, the code determination table 1 is for obtaining the gradation from the display data. In the illustrated example, one of gradations 0 to 7 is obtained from GRB 3-bit display data.

The lighting pattern selection control 3 corresponds to the grayscale input from the code determination table 1 and corresponds to the matrix.
Matrices of the corresponding gradation and information of the corresponding lighting patterns are selected from the lighting pattern selection table 4 and sequentially taken out, and the matrix table 5 is referred to based on the taken-out matrix lighting pattern information to light the corresponding matrix. The pattern is taken out. For example, corresponding to the brightness 1, the matrix of the brightness 1 and the information of the lighting pattern thereof are sequentially selected from the matrix / lighting pattern selection table 4 of FIG. 2 described later, and the information of the lighting pattern of the selected matrix is shown in FIG. The lighting pattern of the corresponding matrix is sequentially taken out from the matrix table 5 as shown in FIG.

Matrix / lighting pattern selection table 4
Is for presetting information of a matrix which is sequentially turned on in association with gradations and information on the lighting pattern thereof, and is, for example, as shown in FIG. 2 (described in detail with reference to FIG. 2).

The matrix table 5 has preset lighting patterns of an m × n matrix, and is, for example, as shown in FIG. 4 (described in detail with reference to FIG. 4). The lighting control 6 controls the lighting of the LCD 7 or the like according to the lighting pattern of the matrix passed from the lighting pattern selection control 3.

The LCD 7 is a display device such as a liquid crystal panel. Next, the operation of the configuration of FIG. 1 will be described. (1) Display data is received from a host (not shown), converted into gradation by the code determination table 1, and input to the lighting pattern selection control 3.

(2) The lighting pattern selection control 3 sequentially selects the matrix and the lighting pattern information corresponding to the gradation from the matrix / lighting pattern selection table 4 corresponding to the inputted gradation, and The matrix table 5 is referred to based on the information on the lighting pattern of the selected matrix, and the lighting pattern of the corresponding matrix is extracted and passed to the lighting control 6.

(3) The lighting control 6 controls the lighting of the LCD 7 and the like according to the received lighting pattern. As described above, when the display data is displayed in gradation, information on an arbitrary lighting pattern of an arbitrary matrix corresponding to the gradation is selected from the matrix / lighting pattern selection table 4, and the lighting pattern is selected from the corresponding matrix table 5. It is possible to sequentially take out and control lighting, display a lighting pattern in a combination of a plurality of arbitrary matrices, eliminate the regularity in which a conventional pattern appears to flow, and display a beautiful gradation.

FIG. 2 shows an example of the matrix / lighting pattern selection table of the present invention. Here, the upper gradation 0 to 7
Corresponds to the gradation obtained by converting the display data according to the code determination table 1 in FIG. To turn on gradation 1,
The seven lightings in the lower direction of the gradation "1" column are repeated to perform lighting with the brightness corresponding to the gradation "1". here,
The gradation “1” is (1) 4 * 4 matrix, pattern 1 (2) 3 * 3 matrix, pattern 1 (3) 4 * 4 matrix, pattern 2 (4) 3 * 3 matrix, pattern 2 (5) 7 lighting patterns of 4 * 4 matrix, pattern 3 (6) 3 * 3 matrix, pattern 3 (7) 4 * 4 matrix, pattern 4 are repeated. That is, lighting is repeated as shown in (1) to (7) of FIG. Here, the “4 * 4 matrix” in the “4 * 4 matrix, pattern 1” of (1) is the lighting pattern of the 4 * 4 matrix of FIG. 4 described later (in the lateral direction of 4 × 4 elements). And a pattern combination in which only one is lit in the vertical direction), and “Pattern 1” represents the first pattern 1 in this matrix. Similarly, in (2) to (7), the corresponding pattern in the corresponding matrix is turned on. Here, two arbitrary lighting patterns of a 4 * 4 matrix and a 3 * 3 matrix are alternately lighted. Therefore, as compared with the case where only the lighting patterns in the conventional 4 * 4 matrix are sequentially turned on, the present invention can freely select and turn on any pattern of any matrix. The matrix / lighting pattern selection table 4 may be set in advance by experiments so that the most suitable combination of matrices can be selected.

FIG. 3 shows an example of the matrix and lighting pattern of the present invention (gradation 1 in FIG. 2). This shows a state in which the above-mentioned seven items (1) to (7) are displayed when the gradation is 1 in FIG. Here it is as follows.

(1) is pattern 1 of the 4 * 4 matrix of FIG. (2) is pattern 1 of the 3 * 3 matrix of FIG. (3) is the pattern 2 of the 4 * 4 matrix of FIG.

(4) is pattern 2 of the 3 * 3 matrix of FIG. (5) is pattern 3 of the 4 * 4 matrix of FIG. (6) is pattern 3 of the 3 * 3 matrix in FIG.

(7) is pattern 4 of the 4 * 4 matrix of FIG. FIG. 4 shows an example of the matrix table of the present invention. This shows an example of a lighting pattern of a matrix of O * O (O is an integer of 3 or more).

4 × 4 matrix: having patterns 1 to 4 as shown in the figure (only one is lit in the vertical and horizontal directions to be ¼ lighting). 3 × 3 matrix: having pattern 1 to pattern 3 as shown in the figure (only one is lit in the vertical and horizontal directions, and 1/3 is lit)

2 × 2 matrix: having pattern 1 and pattern 2 as shown (only one is lit in the vertical and horizontal directions,
1/2 lighting). 3 × 3 matrix: having pattern 1 to pattern 3 as shown (two vertically and horizontally lit and 2/3 lit).

4 × 4 matrix: having pattern 1 to pattern 4 as shown (three vertically and horizontally lit, 3 /
4 lights up). FIG. 5 shows an operation explanatory diagram of the present invention.

In FIG. 5, display data is input. Converts the display data of to gradation. Is
A matrix is selected according to the gradation converted in. This selects information on the matrix and its lighting pattern from the matrix / lighting pattern selection table 4 based on the gradation of.

[0028] extracts the corresponding lighting pattern from the matrix selected in and the information on the lighting pattern. LCD according to the lighting pattern extracted in
Turn on 7 and so on.

From the above, the matrix
From the lighting pattern selection table 4, an arbitrary matrix of a plurality of matrices and information of an arbitrary pattern are selected, and the corresponding lighting pattern is taken out from the matrix table 5 based on the information of the lighting pattern of the selected matrix. Lighting control. With this, a plurality of types of matrixes are prepared in advance, information for selecting an arbitrary matrix and an arbitrary lighting pattern is set in the matrix / lighting pattern selection table 4, and specifically, it is most suitable for the LCD 7 for controlling the lighting. Only by setting the matrix combination and its lighting pattern information, the LCD 7 can be automatically controlled by the optimum matrix combination, and the conventional flow-like defects can be eliminated and a beautiful lighting display can be performed. It was

[0030]

As described above, according to the present invention,
Since a combination of taking out arbitrary lighting patterns of a plurality of arbitrary matrices 5 corresponding to gradations from the matrix / lighting pattern selection table 4 and performing lighting control is repeated when displaying gradations, It is possible to eliminate the regularity that a conventional pattern appears to flow and display a beautiful gradation. With these, monochrome LC
It was possible to improve the appearance of the gradation pattern of D flowing. In addition, the number of matrix patterns and which matrix is selected for each gradation are free, and it depends on the characteristics of the LCD panel in particular. Therefore, it is easy to set which pattern is best by experiment and set. It is now possible to select, and it is possible to easily and optimally match any LCD panel and provide a beautiful gradation display.

[Brief description of drawings]

FIG. 1 is a configuration diagram of an embodiment of the present invention.

FIG. 2 is an example of a matrix / lighting pattern selection table of the present invention.

FIG. 3 is an example of a matrix / lighting pattern of the present invention (gradation 1 in FIG. 2).

FIG. 4 is an example of a matrix table of the present invention.

FIG. 5 is an operation explanatory diagram of the present invention.

FIG. 6 is an explanatory diagram of a conventional technique.

[Explanation of symbols]

 1: Code determination table 3: Lighting pattern selection control 4: Matrix / lighting pattern selection table 5: Matrix table 6: Lighting control 7: LCD

Claims (2)

[Claims] 1. A matrix / lighting pattern selection table (4) for presetting information on a plurality of matrixes to be sequentially lighted corresponding to gradations and lighting patterns thereof, and a matrix table () for registering lighting patterns of a plurality of matrices. 5) and, in response to the display instruction, the matrix and the lighting pattern information corresponding to the gradation of the display data for which the display instruction is given are sequentially selected from the matrix / lighting pattern selection table (4), and the matrix is selected. A lighting pattern selection control (3) for extracting the lighting pattern of the matrix corresponding to the selected information from the table (5) and a lighting control (6) for sequentially lighting according to the lighting pattern of the matrix sequentially taken out are provided. A gradation control method characterized by. 2. The lighting pattern selection table (4),
2. The gradation control method according to claim 1, wherein at least two or more types of matrisk and lighting pattern information are set in association with brightness from among a plurality of different m × n matrix lighting patterns.