JPH10232669A - Display controller - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it possible to display an image in two different luster degrees by providing a display mode change-over means for changing over from/to a first display mode to/from a second display mode. SOLUTION: A CPU 1 sends a signal for specifying a display mode to a synchronizing signal generation part 3. The synchronizing signal generation part 3 generates a display mode change-over signal synchronizing with an image signal based on the display mode specification signal from the CPU 1. This display mode change-over signal is sent to a selection circuit 12. Since each pattern graphic image information for the first and second display modes is specified by the CPU 1 respectively, each pattern graphic image information read from a CG-ROM 4 becomes a color code and RGB data, respectively. Thus, the two kinds of display modes for, comparatively, a low luster degree and a high luster degree are automatically changed over to/from each other, according to the display screen image.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display control device capable of displaying an image in two types of display modes having different vividness.

[0002]

2. Description of the Related Art As a pachinko machine, a liquid crystal display (LC) is used.
D) and the like, and there is a model in which an image corresponding to hit information or the like is displayed on the display. In such display systems, a video display processor (VDP) is generally provided. VDP is CG-RO
Image information such as a background image (pattern graphic image) and a character image (sprite image) is extracted from M and an image is displayed on the LCD.

Image information such as a pattern graphic image and a sprite image is represented by a CG-RO in the form of a color code.
M, stored in lookup table (LUT)
Is converted to RGB data based on FIG. 6 shows a memory map of the lookup table. In FIG. 6, a color code corresponds to an address, and when the color code is input to the look-up table, a total of 15 bits of RGB corresponding to each of 5 bits of RGB corresponding to the address are inputted.
B data is output.

A total of 15 bits of RGB data consisting of 5 bits each of RGB can represent 32,000 colors. However, when the color code is 4 bits, only 16 of the 32,000 colors can be displayed simultaneously.

[0005]

However, depending on the screen image to be displayed, there are cases where the fineness may be low, and cases where it is better to increase the fineness and display an image closer to a natural image. is there.

An object of the present invention is to provide a display control device capable of displaying an image in two types of display modes having different saturations.

The present invention relates to a display control device capable of displaying an image in two types of display modes having different vividness levels, wherein the display mode is automatically switched according to the displayed screen image. It is intended to provide a device.

[0008]

A display control device according to the present invention switches between a first display mode and a second display mode in a display control device for generating a display screen image of each screen based on a plurality of target images. The display mode switching means includes a target image for a first display mode and a target image for a second display mode. For each target image for the first display mode, information constituting the target image is stored as a color code. In addition, for each second display mode target image, a storage unit in which information constituting the target image is stored as RGB data, and in the first display mode, one or a plurality of first images to be displayed from the storage unit. Reads the color code constituting the display mode target image, and forms the display screen image based on the read color code. Means for generating display screen data by extracting and converting the extracted color code into RGB data using a look-up table, and one or more second displays to be displayed from the storage means in the second display mode Means for generating display screen data by reading RGB data forming the mode target image and extracting RGB data forming the display screen image based on the read RGB data; .

The plurality of target images include, for example, a plurality of pattern graphic images and a plurality of sprite images. As the display mode switching means, for example, a means for automatically switching between the first display mode and the second display mode according to the display screen image is used. As the display mode switching means, a means by which an operator or the like manually switches between the first display mode and the second display mode may be used.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is applied to a display system of a pachinko machine will be described below with reference to the drawings.

FIG. 1 shows the configuration of a display system of a pachinko machine.

This display system comprises a CPU 1, a CPU interface 2, a synchronization signal generator 3, a CG-ROM
4, a CG-ROM interface 5, a pattern graphic image generator 7 having a pattern graphic memory 6, a sprite image generator 9 having a sprite memory 8, a color bus control unit 10, a look-up table 11, and a selection circuit 12. , LCD controller 1
3 and an LCD 14.

[0013] Winning information, payout information, and the like are sent to the CPU 1 from a pachinko machine control unit that manages the state of the pachinko machine. The CPU 1 outputs a control signal and control data for outputting a predetermined display screen image according to the information sent from the pachinko machine control unit. CPU
The control signal and the control data output from 1 are transmitted to the CPU
The information is sent to each unit of the display system via the interface 2.

The synchronizing signal generator 3 outputs a timing signal synchronized with the image signal in accordance with a control signal from the CPU 1. This timing signal is supplied to the CG-ROM interface 5, the pattern graphic image generator 7,
It is supplied to a sprite image generator 9, a color bus controller 10, a look-up table 11, a selection circuit 12, and an LCD controller 13.

In this embodiment, as the display mode,
There are two display modes with different vividness. That is, there are a first display mode with relatively low definition and a second display mode with relatively high definition. These display modes are automatically switched according to the display screen image. The signal for designating the display mode is sent to the CPU
1 to the synchronization signal generator 3. Synchronous signal generator 3
Generates a display mode switching signal synchronized with the image signal based on the display mode designation signal from the CPU 1. This display mode switching signal is sent to the selection circuit 12.

As shown in FIG. 2, a plurality of pattern graphic image information P0 to Pn and a plurality of sprite image information S0 to Sm are stored in the CG-ROM 4. Each pattern graphic image information P0 to Pn is
As shown by E1 to Ek in FIG. 5, the information is information for generating an image having a size that is a predetermined number smaller than the size of the display screen. Therefore, a pattern graphic image for one screen is generated by the K pieces of pattern graphic image information.

Pattern graphic image (1 screen unit)
Includes a pattern graphic image (pattern graphic image for the first display mode) displayed in the first display mode, a pattern graphic image (pattern graphic image for the second display mode) displayed in the second display mode, There is.

Similarly, a sprite image displayed in the first display mode (a sprite image for the first display mode) and a sprite image displayed in the second display mode (a sprite image for the second display mode) are also included in the sprite image. Sprite image).

The pattern graphic image information constituting the pattern graphic image for the first display mode is shown in FIG.
As shown in, and a picture element color code, for example, 4-bit C ₀ -C _p constituting it.

The pattern graphic image information constituting the pattern graphic image for the second display mode is shown in FIG.
As shown in the figure, the picture elements that compose it are, for example, RGB
5-bit RGB data (R ₀ , G ₀ , B ₀ ) to (R
_Q , G _Q , and B _Q ).

The same applies to a sprite image constituting a sprite image.

If the color code is 4 bits and the RGB of RGB data is 5 bits each, the first
In display mode, the number of colors that can be displayed simultaneously is 16 colors,
In the second display mode, the number of colors that can be displayed simultaneously is 32,000. Note that whether to display in the first display mode or in the second display mode is determined in advance according to the screen image to be displayed. Therefore, the CPU 1 automatically switches the display mode according to the screen image to be displayed.

As shown in FIG. 5, the pattern graphic memory 6 of the pattern graphic image generator 7 stores
CG storing pattern graphic control data sent from PU1, that is, image information of pattern graphics to be displayed in screen areas E1 to Ek, respectively
-The address (read address) of the ROM 4 is stored.

The pattern graphic image generator 7 fetches pattern graphic image information (color code or RGB data) from the CG-ROM 4 via the CG-ROM interface 5 based on the control data stored in the pattern graphic memory 6. Output to the color bus.

In the first display mode, since the pattern graphic image for the first display mode is designated by the CPU 1 as the pattern graphic image to be displayed, the pattern graphic image information read from the CG-ROM 4 is a color code. The pattern graphic image information output to the color bus also becomes a color code. In the second display mode, the pattern graphic image for the second display mode is specified by the CPU 1 as the pattern graphic image to be displayed.
The pattern graphic image information read from the G-ROM 4 is RGB data, and the pattern graphic image information output to the color bus is also RGB data.

The sprite memory 8 of the sprite image generator 9 stores sprite image control data for each sprite surface sent from the CPU 1, that is, sprite image information to be displayed for each sprite surface.
The address (read address) of the G-ROM 4 and the like are stored.

The sprite image generator 9 generates sprite image information (color code or RGB data) corresponding to each sprite surface via the CG-ROM interface 5 based on the control data stored in the sprite memory 8. Import from ROM4.

The sprite image information for each sprite surface fetched from the CG-ROM 4 is stored in a sprite image selection circuit (not shown) provided in the sprite image generator 9.
Sent to The sprite image selection circuit selects predetermined sprite image information for each display position based on the display priority of each sprite surface. That is, at a display position where only sprite image information corresponding to one sprite surface is input, the sprite image information is output as it is. At a display position where sprite image information for a plurality of sprite surfaces is simultaneously input, sprite image information for the sprite surface having the highest display priority among the sprite surfaces is selected and output.
The sprite image information output from the sprite image selection circuit is sent to the color bus together with the coordinate data indicating the display position.

In the first display mode, the sprite image for the first display mode is specified by the CPU 1 as the sprite image to be displayed. Therefore, the sprite image information read from the CG-ROM 4 is a color code and a color bus. Is also a color code. In the second display mode, the sprite image for the second display mode is designated by the CPU 1 as the sprite image to be displayed.
4 is RGB data, and the sprite image information output to the color bus is also RGB data.

The pattern graphic image information and sprite image information output to the color bus are sent to the color bus control unit 10. The color bus control unit 10 outputs the input information to a display position where only one of the sprite image information and the pattern graphic image information is input. For a display position where both sprite image information and pattern graphic image information are input, sprite image information is selected and output.

The information output from the color bus control unit 10 is sent to a look-up table 11 and a selection circuit 12. FIG. 6 shows the contents of the lookup table 11. That is, as the look-up table 11, a 4-bit color code is converted to a 5-bit RGB
What converts to B data is used.

When the information output from the color bus control unit 10 is a color code, that is, in the first display mode, the color code output from the color bus control unit 10 is converted into RGB data by the lookup table 11. You. In this case, the selection circuit 12 selects and outputs the RGB data output from the lookup table 11 based on the display mode switching signal from the synchronization signal generator 3. The RGB data output from the selection circuit 12 is sent to the LCD 14 and displayed.

When the information output from the color bus control section 10 is RGB data, that is, in the second display mode, the selection circuit 12 controls the color bus control based on the display mode switching signal from the synchronization signal generation section 3. The RGB data output from the unit 10 is selected and output. Selection circuit 12
The RGB data output from is sent to the LCD 14 and displayed.

According to the above embodiment, an image that does not need to be displayed in a color close to a natural color is displayed in the first display mode, and an image that is preferably displayed in a color close to the natural color is the second image.
It can be displayed in the display mode.

[0035]

According to the present invention, an image can be displayed in two types of display modes having different vividness.

Further, according to the present invention, there is provided a display control device capable of displaying an image in two types of display modes having different vividness levels, wherein the display mode is automatically set in accordance with the displayed screen image. A switchable display control device is realized.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a configuration of a display system of a pachinko machine.

FIG. 2 is a schematic diagram showing the contents of a CG-ROM.

FIG. 3 is a schematic diagram showing pattern graphic image information constituting a pattern graphic image displayed only in a first display mode.

FIG. 4 is a schematic diagram showing pattern graphic image information constituting a pattern graphic image displayed only in a second display mode.

FIG. 5 is a schematic diagram showing control data stored in a pattern graphic memory and a screen area corresponding to the control data.

FIG. 6 is a schematic diagram showing contents of a lookup table.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 CPU 3 Synchronization signal generation part 4 CG-ROM 7 Pattern graphic image generation part 9 Sprite image generation part 10 Color bus control part 11 Look-up table device 12 Selection circuit 14 LCD

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁶ Identification symbol FI G09G 5/06 G09G 5/06 (72) Inventor Kiyoji Matsumoto 2-5-5 Keihanhondori, Moriguchi-shi, Osaka SANYO Electric Co., Ltd. Inside the company (72) Inventor Yutaka Uehara 2-5-5 Keihanhondori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd. (72) Hiroyuki Miyake 2-5-5 Keihanhondori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd.

Claims (3)

[Claims] 1. A display control device for generating a display screen image of each screen based on a plurality of target images, a display mode switching means for switching between a first display mode and a second display mode, and a first display on the target image. There is a mode target image and a second display mode target image. For each first display mode target image, information constituting the target image is stored as a color code, and each second display mode target image is stored. Is a storage unit in which information constituting the target image is stored as RGB data, and 1 to be displayed from the storage unit in the first display mode.
Alternatively, a color code constituting a plurality of first display mode target images is read, a color code constituting a display screen image is extracted based on the read color code, and the extracted color code is converted into RGB data by a look-up table. Means for generating display screen data, and in the second display mode, read RGB data constituting one or a plurality of second display mode target images to be displayed from the storage means, R for composing a display screen image based on RGB data
A means for generating display screen data by extracting GB data. 2. The display control device according to claim 1, wherein the plurality of target images include a plurality of pattern graphic images and a plurality of sprite images. 3. The display control device according to claim 1, wherein the display mode switching means automatically switches between the first display mode and the second display mode according to a display screen image. .