JP5253348B2 - Status display device - Google Patents

Description

  The present invention relates to a status display device in home appliances such as an air conditioner.

  Due to the multi-functionality of electronic devices such as air conditioners and home appliances, it is not possible to operate the devices simply by combining a fixed LCD display (for example, segment LCD display) directly connected to several conventional buttons. . Therefore, it is possible to display arbitrary figures and images on the liquid crystal using so-called low-cost general-purpose liquid crystal (so-called full-dot liquid crystal display), and further switch the screen display using this property or display the window on a small window for explanation. By combining these two methods (so-called graphical user interface: GUI), a device having both multifunctionality and ease of use is manufactured. For the user, the operability that the basic functions can be used immediately and the applied functions can be used has led to an improvement in convenience. However, in the display devices of these devices, display contents on the liquid crystal and operation devices are greatly restricted from the viewpoint of manufacturing cost.

  However, the microcomputer used for the embedded device has a lower processing capacity than a personal computer from the viewpoint of cost, heat generation, power consumption, etc., and its performance ratio is 1/100 speed and storage capacity 1/1000 or less. Often. Since the above-described full dot liquid crystal display realizes a degree of freedom of display by combining minute light emitting points, a large number of instructions are required even if only one figure is displayed. For example, in order to draw a 1 cm square, about 100 light emitting points must be changed, which requires about 1000 instructions. A large part of microcomputer processing capacity is consumed for GUI processing that combines such graphic displays and frequently draws by screen display switching, and a large part of storage capacity is consumed for intermediate information processing. As a result, the control application program of the original air conditioner, home appliance, etc. is delayed. As a result, it becomes a problem that the design of the control application program becomes difficult.

  To solve this problem, a solution is proposed in which a part of the GUI is made into dedicated hardware (hereinafter referred to as “HW”), thereby reducing consumption of microcomputer processing capacity and speeding up drawing processing. (For example, refer to Patent Document 1). Processing by hardware is much faster than processing by software. This is because, compared with the case where the microcomputer processes one by one in synchronization with the minimum unit clock, the processing can be performed in parallel regardless of the clock, and the degree of parallelism can be optimized. Implementing processes in parallel by converting some processes into dedicated HWs in this way is a very effective method because the main application can monopolize the processing capacity of the microcomputer. In the above example, in order to draw a square of 1 cm square, about 10 instructions for calculating the end points are required. Conventionally, when a part of the processing is converted into a dedicated HW, a method of converting into HW in units of drawing commands such as “line drawing” or “color calculation” has been proposed. These are commercialized under the name of graphic accelerator.

JP 2006-185195 A (page 4)

  However, when the HW is rendered in units of drawing commands as described above, it cannot be said that the processing related to the GUI is sufficiently separated. This is because when a large amount of information is displayed on the liquid crystal screen as graphics and images and there are frequent drawing requests for screen switching, the drawing requests themselves are very large and consume a considerable amount of microcomputer processing capability.

  On the other hand, it is difficult to turn the entire GUI process into HW. This is because the GUI screen itself is different for each application or product, and if the GUI processing itself is converted to HW, only the same screen can be created. In this case, it is necessary to create a dedicated HW for each application, but this has a problem that it takes enormous effort and cost.

  The present invention has been made in order to solve the above-described problems, and an object of the present invention is to speed up the drawing process by devising the HW for GUI drawing.

A status display device according to the present invention includes a liquid crystal display unit, a drawing operation unit that performs drawing operations necessary for the liquid crystal display unit to display a screen, and a drawing request that causes the drawing operation unit to perform drawing operations. A central processing unit to generate, and a storage unit from which the central processing unit can read and write data, and the rendering request includes a rendering range indicating a range to be displayed on the liquid crystal display unit. The central processing unit stores the drawing request in the storage unit, the storage unit stores image data such as graphics or characters, and the drawing calculation unit stores the drawing request in the storage unit. includes a register for holding addresses, before Symbol acquires the drawing requests stored in the storage unit based on the address held in the register, performing a drawing operation in accordance with image drawing requests, its The rendering operation results, the liquid crystal display unit is stored in the storage unit as the drawing data necessary for the screen display, if there is a continuous following of the drawing request, the address of the next of said drawing request An image that writes to a register and that causes the liquid crystal display unit to display a screen based on the drawing data stored in the storage unit , and that the drawing request indicates that the image data should be drawn by a remainder In the case of a remainder drawing request, the drawing calculation unit calculates a remainder obtained by dividing the display coordinates in the liquid crystal display unit indicated by the drawing range by the width of the image data. A drawing operation for generating the drawing data for displaying the data on the right by the remainder from the left end of the image data is performed .

  According to the present invention, the drawing calculation means repeatedly draws the image data while adding the write destination addresses in ascending order according to the drawing repetition condition, so that the drawing calculation means performs the repeated drawing. Can operate independently of the central processing means, so the load on the central processing means can be reduced. Further, since the number of drawing requests is small, it is preferable from the viewpoint of saving the storage area.

  According to the present invention, the image data is used to draw from the position on the image data shifted by the excess when each coordinate value in the upper left coordinate of the drawing range is divided by the width and height values of the image data. By performing the processing, it is possible to cut out and display a part of the image portion from one image data, and it is possible to perform a wide variety of drawing processing. Also in this case, since the number of drawing operations can be reduced as compared with the case of drawing by line drawing or the like, the efficiency of the drawing process can be improved.

It is a functional block diagram of the status display device according to the first embodiment of the present invention. It is a figure which shows the example of the content of the data stored in the drawing request | requirement area | region 121 in the state display apparatus which concerns on Embodiment 1 of this invention. It is a figure which shows the example of the content of the drawing data of the drawing result area | region 122 in the state display apparatus which concerns on Embodiment 1 of this invention. It is a figure explaining the operation | movement which the status display apparatus which concerns on Embodiment 1 of this invention processes a some drawing request. It is a flowchart explaining the detail of the operation | movement which the status display apparatus which concerns on Embodiment 1 of this invention processes a drawing request. FIG. 10 is a diagram illustrating a processing procedure of a drawing request when a plurality of drawing requests are recorded in a plurality of areas on the storage unit 118 in the state display device according to the first embodiment of the present invention. It is a figure which shows the example of the content of the data stored in the drawing request | requirement area | region 121 in the state display apparatus which concerns on Embodiment 2 of this invention. It is a figure which shows the example of the content of the drawing data of the drawing result area | region 122 in the state display apparatus which concerns on Embodiment 2 of this invention. FIG. 6 is a diagram for explaining the sizes of image data 602 and a drawing range 701. It is a figure explaining the detail of the process in which the drawing calculating means 104 in the state display apparatus which concerns on Embodiment 2 of this invention repeatedly writes the image data 602 in the drawing result area | region 122. It is a flowchart explaining the procedure in which the drawing calculation means 104 in the state display apparatus according to Embodiment 2 of the present invention repeatedly draws. It is a figure which shows the example which comprised the button by repeatedly drawing image data in the drawing range 1101 in the state display apparatus which concerns on Embodiment 3 of this invention. It is a figure which shows the example of the content of the data stored in the drawing request | requirement area | region 121 in the state display apparatus which concerns on Embodiment 4 of this invention. It is a figure which shows another example of the content of the data stored in the drawing request | requirement area | region 121 in the state display apparatus which concerns on Embodiment 4 of this invention. It is a figure which shows the example of the content of the drawing data of the drawing result area | region 122 in the state display apparatus which concerns on Embodiment 4 of this invention.

Embodiment 1 FIG.
FIG. 1 is a functional block diagram of a status display device according to Embodiment 1 of the present invention.
As shown in FIG. 1, the status display device includes a central calculation unit 101, a drawing calculation unit 104, a storage unit 118, and a liquid crystal display unit 123.
The central processing unit 101 and the drawing processing unit 104 are preferably integrated in the same microcomputer LSI (Large Scale Integration).
The central calculation unit 101, the drawing calculation unit 104, and the storage unit 118 correspond to the “central calculation unit”, “drawing calculation unit”, and “storage unit” of the present invention, respectively.

First, the storage unit 118 will be described.
The storage unit 118 includes at least a display program area 119, a device control program area 120, a drawing request area 121, and a drawing result area 122. The storage unit 118 can be accessed from both the central processing unit 101 and the drawing calculation unit 104.
The display program area 119 and the device control program area 120 are configured by a non-volatile storage device, the drawing request area 121 and the drawing result area 122 are configured by a volatile storage device, and the storage unit 118 includes the central processing unit 101 and It is preferably mounted as a so-called system LSI integrated with the drawing arithmetic unit 104 in the same microcomputer LSI.

  The display program area 119 stores a display program for displaying on the liquid crystal display unit 123, and the display program defines a drawing process related to the GUI of the state display device. The device control program area 120 stores a device control program for controlling the operation of the entire status display device. The display program and the device control program are programs executed by the central processing unit 101.

  The drawing request area 121 stores various drawing requests executed by the drawing calculation unit 104. A drawing request is written in the drawing request area 121 based on various calculation results by the central processing means 101.

  The drawing result area 122 is a storage area for storing light emission position information and color information (hereinafter referred to as drawing data) for display on a liquid crystal screen 125 described later, and is generally called a frame buffer. In addition, the drawing result area 122 includes a storage space assigned to each address of the light emitting point coordinates of the liquid crystal of the liquid crystal display unit 123. In this embodiment, the case where the drawing result area 122 and the light emitting point coordinates of the liquid crystal display unit 123 correspond to each other is described as an example. A configuration including a drawing result area may be used.

Next, the central processing unit 101 will be described.
The central processing means 101 is constituted by a microcomputer, a CPU (Central Processing Unit) or the like, and includes at least a main register 102, and the main register 102 has an instruction address register 103. The central processing unit 101 interprets information stored at the position in the storage unit 118 pointed to by the instruction address register 103 based on the definition contents of the central processing unit 101, and performs four arithmetic operations, logical operations, data transfer, Implement instruction address change and conditional instruction address change. Complex calculation and device control are realized by a program combining these operations. In the present embodiment, a predetermined complicated operation is realized by information stored in the display program area 119 and the device control program area 120.

  The main register 102 includes a data register for performing various arithmetic processes and an address register for designating an address for accessing the storage means 118. In this embodiment, only the instruction address register 103 is shown. .

  The instruction address register 103 is a register that holds an address on the storage unit 118 of an instruction executed by the central processing unit 101. In FIG. 1, an arrow 131 and an arrow 132 extending from the instruction address register 103 to the storage unit 118 mean that the instruction address register 103 indicates the address of the storage unit 118.

Next, the drawing calculation means 104 will be described.
The drawing operation unit 104 is a logic circuit specialized for liquid crystal display, and has a function of reading and writing the storage unit 118. The drawing calculation unit 104 includes at least a drawing register 105 and a drawing function 110.

  The drawing register 105 includes at least an instruction address register 106, a start / end instruction register 107, an interrupt factor register 108, and a drawing address register 109.

  The instruction address register 106 is a register that holds an address on the storage unit 118 of an instruction (hereinafter referred to as a drawing request) executed by the drawing calculation unit 104. In FIG. 1, an arrow 133 extending from the instruction address register 106 to the storage unit 118 means that the instruction address register 106 indicates the address of the storage unit 118.

  The start / end instruction register 107 is a register that holds a start command that instructs the drawing operation unit 104 to start drawing processing.

  The interrupt factor register 108 is a register for holding an interrupt factor when an interrupt signal is issued from the drawing arithmetic unit 104 to the central arithmetic unit 101.

  The drawing address register 109 is a register that holds an address of the storage unit 118 that is a writing destination of a drawing processing result by the drawing calculation unit 104. In FIG. 1, an arrow 134 extending from the drawing address register 109 to the storage unit 118 means that the drawing address register 109 indicates the address of the storage unit 118.

  The drawing function 110 includes at least an interpretation function 111, a line drawing function 112 that is a logic circuit having a specific drawing function, a square frame drawing function 113, a square painting drawing function 114, an image drawing function 115, and a drawing range constraint storage 116. And a drawing availability state storage 117.

  The interpretation function 111 interprets the drawing request in the drawing request area 121 pointed to by the instruction address register 106 read by the drawing calculation means 104, and in accordance with the drawing contents, the line drawing function 112, the square frame drawing function 113, and the square paint drawing. The logic circuit of the function 114 or the image drawing function 115 is activated. The activated logic circuit reads coordinate information from the drawing request area 121 and converts the figure into drawing data at a predetermined position in the drawing result area 122 based on the coordinate information. In addition, the interpretation function 111 updates the contents of the drawing range constraint storage 116.

  The drawing range constraint storage 116 stores a range that can be drawn by the drawing calculation unit 104 as a drawing constraint range. That is, the drawing calculation unit 104 does not perform drawing outside the drawing range stored in the drawing range constraint storage 116.

  The drawing permission / prohibition state storage 117 stores information indicating whether drawing is performed in the drawing result area 122 or drawing is not performed at all.

Further, the liquid crystal display unit 123 will be described. The liquid crystal display unit 123 includes at least a display address register 124 and a liquid crystal screen 125 and is stored in a housing (not shown). In addition, the liquid crystal display unit 123, for example, emits the content corresponding to the movement of the display position at high speed as time elapses from upper left to right and further downward, and displays a two-dimensional image by the afterimage effect that is visible to the eyes. A so-called full dot liquid crystal display is assumed. Further, the liquid crystal display unit 123 performs display control of the liquid crystal screen 125 based on the drawing data in the drawing result area 122.

  The display address register 124 is a register that holds an address on the storage unit 118 that stores drawing data for emitting light emission points of the liquid crystal screen 125. The liquid crystal display unit 123 obtains the drawing data indicated by the display address register 124 from the drawing result area 122 and causes the light emitting point of the liquid crystal screen 125 to emit light. In FIG. 1, an arrow 135 extending from the display address register 124 to the storage unit 118 means that the display address register 124 points to the address of the storage unit 118. An arrow 136 extending from the display address register 124 to the liquid crystal screen 125 indicates that a graphic or an image is displayed on the liquid crystal screen 125 based on the light emission position information and color information held by the display address register 124. .

  The liquid crystal screen 125 includes a liquid crystal that is a set of minute light emission points, and is displayed on the screen by being controlled by the liquid crystal display unit 123.

FIG. 2 is a diagram showing an example of the contents of data stored in the drawing request area 121 in the state display device according to Embodiment 1 of the present invention.
As shown in FIG. 2, the drawing request area 121 in the storage unit 118 stores drawing requests 201 to 204.

  The drawing request 201 includes a drawing start instruction 201a, a drawing function instruction (square frame) 201b, a drawing range upper left coordinate 201c, a drawing range lower right coordinate 201d, a drawing thickness 201e, and a drawing color (black) 201f.

  The drawing request 202 includes a drawing start instruction 202a, a drawing function instruction (drawing range) 202b, a drawing range upper left coordinate 202c, and a drawing range lower right coordinate 202d.

  The drawing request 203 includes a drawing start instruction 203a, a drawing function instruction (square coating) 203b, a drawing range upper left coordinate 203c, a drawing range lower right coordinate 203d, a drawing thickness 203e, and a drawing color (gray) 203f.

  The drawing request 204 includes a drawing start instruction 204a, a drawing function instruction (line drawing) 204b, a drawing range upper left coordinate 204c, a drawing range lower right coordinate 204d, a drawing thickness 204e, and a drawing color (black) 204f.

  FIG. 3 is a diagram showing an example of the contents of drawing data in the drawing result area 122 in the state display device according to Embodiment 1 of the present invention. The drawing data is binary data indicating information such as which part of the liquid crystal screen 125 emits light in which color. Here, for visual explanation, a screen image 301 displayed on the liquid crystal screen 125 is shown instead of binary data.

  The drawing request 201 has a rectangular frame (201b) with a rectangle having coordinates (0, 0) (201c) and coordinates (9, 9) (201d) as a diagonal, a thickness of 1 (201e), and a color of black (201f) means a drawing request. The result of drawing this is a rectangle 302 in FIG.

  The drawing request 202 is a special function for designating a drawing range (202b), and the subsequent drawing is limited to a rectangle whose coordinates are (1, 1) (202c) and coordinates (8, 8) (202d). Means the request. This request is stored in the drawing range restriction storage 116, and the drawing results of the line drawing function 112, the square frame drawing function 113, the square painting drawing function 114, and the image drawing function 115, which are the drawing functions, are restricted. This drawing result is not reflected on the screen image 301 at this point.

  The drawing request 203 is a fill (203b), which means a request to fill a rectangular range having both ends of coordinates (0, 0) (203c) and coordinates (9, 9) (203d). Here, under the restriction by the drawing request 202, the result is that the rectangular area having the coordinates (1, 1) and the coordinates (8, 8) as both ends is actually filled. The result of drawing this is the rectangular coating 303 in FIG. Further, due to the restriction of the drawing request 202, the rectangular frame of the rectangle 302 remains without being overwritten.

  The drawing request 204 is line drawing (204b), a line segment having coordinates (0, 0) (204c) and coordinates (9, 9) (204d) at both ends is a thickness 1 (204e), and a color Means a request to draw in black (204f). The result of drawing this is as shown by a line 304 in FIG.

FIG. 4 is a diagram illustrating an operation in which the state display device according to Embodiment 1 of the present invention processes a plurality of drawing requests. Here, a part of FIG. 1 is extracted and described, and the same reference numerals are given to the same components.
As shown in FIG. 4, the drawing request area 121 includes a drawing 1 request (401), a drawing 2 request (402), an end 2 request (403), a drawing 3 request (404), a drawing 4 request (405), An end 1 request (406) is stored. In each drawing request, as in the drawing requests 201 to 204 described with reference to FIG. Hereinafter, the procedure for processing each drawing request will be described in the following steps (1) to (13) with reference to FIG.

(1) It is assumed that the address stored in the instruction address register 106 indicates the position of the drawing 1 request (401).
The central processing means 101 may be used to write the address of the drawing 1 request (401) in the instruction address register 106, or other functional units.

(2) The central processing means 101 writes a start instruction for starting the drawing process in the start / end instruction register 107.

(3) When the start instruction is written in the start / end instruction register 107, the drawing calculation means 104 performs the following procedure while activating each drawing function such as the line drawing function 112 by the interpretation function 111 provided in the drawing function 110. Start.

(4) The drawing calculation unit 104 acquires the drawing 1 request (401) based on the address stored in the instruction address register 106, and performs drawing processing according to the content. Next, the drawing operation means 104 writes the address on the storage means 118 in which the drawing 2 request (402) is stored in the instruction address register 106.

(5) The drawing calculation unit 104 acquires the drawing 2 request (402) based on the address stored in the instruction address register 106, and performs the drawing process according to the content. Next, the drawing operation unit 104 writes the address on the storage unit 118 in which the end 2 request (403) is stored in the instruction address register 106.

(6) The drawing calculation unit 104 acquires the end 2 request (403) based on the address stored in the instruction address register 106. Next, the drawing calculation means 104 calls the interrupt 411 to the central calculation means 101 according to the content of the end 2 request (403), and writes the cause 2 end (412) in the interrupt factor register 108. Here, it is assumed that the drawing operation means 104 writes the factor 2 end (412) to the interrupt factor register 108 prior to the call of the interrupt 411.

(7) The drawing operation means 104 writes the address on the storage means 118 storing the drawing 3 request (404), which is the next drawing request, in the instruction address register 106, and interrupts the drawing process.

(8) The central processing means 101 writes a start instruction to start the drawing process in the start / end instruction register 107.

(9) When the start instruction is written in the start / end instruction register 107, the drawing operation means 104 starts the following procedure.

(10) The drawing calculation unit 104 acquires the drawing 3 request (404) based on the address stored in the instruction address register 106, and performs the drawing process according to the content. Next, the drawing operation means 104 writes the address on the storage means 118 in which the drawing 4 request (405) is stored in the instruction address register 106.

(11) The drawing operation unit 104 acquires the drawing 4 request (405) based on the address stored in the instruction address register 106, and performs drawing processing according to the content. Next, the drawing operation unit 104 writes the address on the storage unit 118 in which the end 1 request (406) is stored in the instruction address register 106.

(12) The drawing calculation unit 104 acquires the end 1 request (406) based on the address stored in the instruction address register 106. Next, the drawing calculation means 104 calls the interrupt 413 to the central calculation means 101 according to the content of the end 1 request (406), and writes the cause 1 end (414) in the interrupt factor register 108. Here, it is assumed that the drawing operation unit 104 writes the factor 1 end (414) to the interrupt factor register 108 prior to the call of the interrupt 413.

(13) The drawing operation unit 104 writes the address on the storage unit 118 in which the next drawing request is stored in the instruction address register 106, and interrupts the drawing process.

  In the foregoing, the procedure in which the drawing calculation unit 104 processes a plurality of drawing requests has been described.

  FIG. 5 is a flowchart for explaining details of an operation in which the state display device according to Embodiment 1 of the present invention processes a drawing request. Details of the drawing request process will be described below with reference to FIG.

(S1200)
The drawing calculation means 104 starts any figure drawing.

(S1201)
The drawing calculation unit 104 initializes the drawing availability state storage 117.

(S1202)
The drawing calculation unit 104 determines whether drawing is finished. If the drawing end condition is met, the process advances to step S1208; otherwise, the process advances to step S1203.

(S1203)
The drawing calculation means 104 calculates drawing coordinates.

(S1204)
The drawing calculation unit 104 determines whether or not the drawing coordinates fall within the range recorded as the drawing range constraint storage 116. This determination can be performed by determining the size of the horizontal coordinate and determining the size of the vertical coordinate. If it does not fit, the process proceeds to step S1205. If not, the process proceeds to step S1207.

(S1205)
The drawing calculation unit 104 changes drawing data at the drawing position.

(S1206)
The drawing calculation unit 104 changes the drawing availability state storage 117.

(S1207)
The drawing calculation means 104 calculates the next drawing condition. After the calculation, the process returns to step S1202 and the same processing is repeated.

(S1208)
The drawing calculation unit 104 determines whether or not the drawing availability state storage 117 remains in the initial state. If the initial state is not maintained, the process proceeds to step S1211. If the initial state is maintained, the process proceeds to step S1209.

(S1209)
The drawing calculation unit 104 determines that drawing has not been performed at all, and sets “out of drawing range” as an interrupt factor.

(S1210)
The drawing calculation means 104 requests an interruption from the central calculation means 101.

(S1211)
The drawing calculation unit 104 determines that some drawing has been performed, moves to the next instruction address, and completes this operation flow.

(S1212)
The drawing calculation means 104 completes this operation flow and interrupts the entire drawing calculation.

  The drawing range constraint storage 116 specifically includes a range that can be displayed on the liquid crystal screen 125, a range calculated from the drawing result area 122, and an instruction range described in the drawing request area 121. It is desirable to store each determination as a drawing availability state storage 117.

FIG. 6 is a diagram for explaining a processing procedure of a drawing request when a plurality of drawing requests are divided and recorded in a plurality of areas on the storage unit 118 in the status display device according to Embodiment 1 of the present invention. is there. As in FIG. 4, a part of FIG. 1 is extracted and described, and the same components are denoted by the same reference numerals.
As shown in FIG. 6, it is assumed that the drawing request group 1 (501) and the drawing request group 2 (506) are stored in the storage unit 118. The drawing request group 1 (501) includes a drawing 1 request (502), a drawing 2 request (503), a drawing 3 request (504), and an address change request (505). The drawing request group 2 (506) includes a drawing 4 request (507), a drawing 5 request (508), a drawing 6 request (509), and an end 1 request (510). In each drawing request, as in the drawing requests 201 to 204 described with reference to FIG.

  The address change request (505) instructs the drawing operation unit 104 to rewrite the contents of the instruction address register 106 to the address where the drawing 4 request (507) is stored.

  Hereinafter, the procedure for processing a drawing request will be described in the following steps (1) to (8) with reference to FIG.

(1) Assume that the address stored in the instruction address register 106 points to the position of the drawing 1 request (502).
The central processing means 101 may be used to write the address of the drawing 1 request (502) in the instruction address register 106, or other functional units.
(2) The central processing means 101 writes a start instruction for starting the drawing process in the start / end instruction register 107.

(3) When the start instruction is written in the start / end instruction register 107, the drawing calculation means 104 performs the following procedure while activating each drawing function such as the line drawing function 112 by the interpretation function 111 provided in the drawing function 110. Start.

(4) The drawing calculation unit 104 acquires the drawing 1 request (502) based on the address stored in the instruction address register 106, and performs drawing processing according to the content. Next, the drawing operation unit 104 writes the address on the storage unit 118 in which the drawing 2 request (503) is stored in the instruction address register 106.

(5) The drawing calculation unit 104 acquires the drawing 2 request (503) based on the address stored in the instruction address register 106, and performs the drawing process according to the content. Next, the drawing operation means 104 writes the address on the storage means 118 in which the drawing 3 request (504) is stored in the instruction address register 106.

(6) The drawing calculation unit 104 acquires the drawing 3 request (504) based on the address stored in the instruction address register 106, and performs drawing processing according to the content. Next, the drawing operation unit 104 writes the address on the storage unit 118 in which the address change request (505) is stored in the instruction address register 106.

(7) The drawing operation unit 104 acquires an address change request (505) based on the address stored in the instruction address register 106. Next, the drawing operation means 104 writes the address on the storage means 118 in which the drawing 4 request (507) is stored in the instruction address register 106 according to the contents.

(8) Subsequent operations are the same as those described above.

  As described above, according to the first embodiment, when there is a continuous next drawing request, the drawing calculation unit 104 designates the address of the next drawing request before ending the processing of the previous drawing request. Since the next drawing request is written based on the address written in the instruction address register 106, the drawing calculation means 104 is connected to the central calculation means 101 based on the address held in the instruction address register 106. Can independently process a plurality of continuous drawing requests while autonomously acquiring them. For this reason, the central processing unit 101 can allocate a large amount of processing resources to processing other than processing related to the GUI.

  Further, since the drawing calculation unit 104 can independently process a plurality of drawing requests without depending on the clock frequency of the central calculation unit 101, the central calculation unit 101 can update the display of the liquid crystal display unit 123. Therefore, it is not necessary to allocate a large number of calculation resources, and a large number of calculation resources can be allocated for processing of other applications.

  Further, as in the above-described operation, drawing requests can be divided and arranged, and by using the limited area of the storage unit 118, when there are a lot of drawing request columns, the drawing requests are placed at the end of the range of storage positions. By instructing to change the interpretation position to the head of a predetermined storage position range, even if the device has a narrow storage position range, drawing requests can be continuously issued.

  It is also possible to separate and describe different parts and common parts of similar and non-displayed screen displays and assemble and call a drawing request that automatically merges from different parts to the common part.

Embodiment 2. FIG.
In the present embodiment, the difference from the state display device according to the first embodiment will be mainly described. The configuration of the status display device itself according to the present embodiment is the same as that described in the first embodiment.
In the present embodiment, a description will be given of an operation example in which a drawing repetition condition is included in a single drawing request, and the drawing calculation means 104 repeatedly executes the same drawing processing in accordance with this.

FIG. 7 is a diagram showing an example of the contents of data stored in the drawing request area 121 in the state display device according to Embodiment 2 of the present invention.
As shown in FIG. 7, a drawing request 601 is stored in the drawing request area 121 in the storage unit 118.

  The drawing request 601 includes a drawing start instruction 601a, a drawing function instruction (image) 601b, a drawing range upper left coordinate 601c, a drawing range lower right coordinate 601d, a drawing repetition condition 601e, and a drawing image address 601f.

  When the drawing function instruction (image) 601b instructs to draw image data, the drawing image address 601f stores an address on the storage unit 118 of the image data 602 to be drawn. The drawing repetition condition 601e stores a repetition condition for repeatedly drawing the same image data.

  FIG. 8 is a diagram showing an example of the contents of the drawing data in the drawing result area 122 in the state display device according to Embodiment 2 of the present invention. FIG. 8 is a diagram showing an example of the contents of drawing data stored in the drawing result area 122 as a result of executing the drawing request illustrated in FIG. 7. For visual explanation, a liquid crystal is used instead of the drawing data itself. A screen image 301 displayed on the screen 125 is shown.

  The drawing calculation means 104 repeatedly draws the image data 602 according to the drawing repetition condition 601e. Here, an example is shown in which image data 602 is repeatedly drawn in the horizontal direction within a range that falls within the drawing range 701.

  FIG. 9 is a diagram for explaining the sizes of the image data 602 and the drawing range 701.

  The image height 951 is the size in the vertical direction when the image data 602 is drawn on the liquid crystal screen 125.

  The image width 952 is the horizontal size when the image data 602 is drawn on the liquid crystal screen 125.

  The drawing width 955 is the horizontal size when the drawing range 701 is drawn on the liquid crystal screen 125.

  The drawing height 956 is the size in the vertical direction when the drawing range 701 is drawn on the liquid crystal screen 125. Here, an example in which the drawing height 956 and the image height 951 coincide is shown.

FIG. 10 is a diagram for explaining details of processing in which the drawing calculation unit 104 in the state display device according to Embodiment 2 of the present invention repeatedly writes the image data 602 in the drawing result area 122.
As shown in FIG. 10, it is assumed that the image data 602 is composed of a small rectangular area 961 and a rectangular area 981 that are filled, and a large rectangular area disposed below the rectangular area 961. It is assumed that the iterative process is performed for each rectangular area.
The contents of the repetitive processing will be described below together with the correspondence with the address in the storage unit 118.

(1) Address assignment on storage means 118 The drawing result area 122 is assigned addresses increasing in ascending order on the storage means 118. The correspondence between this address and the position of the light emitting point on the liquid crystal screen 125 is as follows.

(1.1) The light emission point at the upper left of the liquid crystal screen 125 is associated with the smallest address in the drawing result area 122.
(1.2) Thereafter, the addresses in the drawing result area 122 increase in ascending order and correspond to the right on the liquid crystal screen 125.
(1.3) When the rightmost end on the liquid crystal screen 125 is reached, the leftmost light emitting point on the line immediately below one light emitting point is assigned to the next address.
(1.4) Similarly, the addresses in the drawing result area 122 are associated in ascending order from left to right for each line of light emitting points.

(2) Repeating range in the horizontal direction Next, the horizontal drawing range of the drawing range 701 will be described.

(2.1) Drawing of Rectangular Area 961 The drawing calculation means 104 repeatedly writes drawing data for displaying the rectangular area 961 in the drawing result area 122. The write destination address is sequentially increased in ascending order. This corresponds to repeatedly drawing on the liquid crystal screen 125 from left to right. In addition, when the drawing calculation unit 104 increases the writing destination address in ascending order while repeatedly drawing, the writing position corresponding to the address exceeds the position corresponding to the right end of the drawing range 701. Then, drawing is interrupted repeatedly. On the address of the storage unit 118, the address one ahead of the right end of the drawing range 701 is assigned to the left end of the drawing range 701, and if drawing is continued as it is, incorrect drawing is performed. is there.

(2.2) Drawing of Rectangular Area 981 The drawing operation unit 104 repeatedly draws the rectangular area 981 as in the rectangular area 961. In addition, as with the repetition condition of the rectangular area 961, the drawing calculation unit 104 suspends repeated drawing when the writing position corresponding to the writing destination address exceeds the position corresponding to the right end of the drawing range 701.

(2.3) Common items 1 of the rectangular area 961 and the rectangular area 981
The drawing calculation unit 104 repeatedly interrupts drawing for any rectangular area when the writing position corresponding to the writing destination address exceeds the position corresponding to the right end of the drawing range 701. The address on the storage means 118 is not interrupted at the right end of the drawing range 701 but is directly connected to the left end. Therefore, whether or not the position corresponding to the right end portion of the drawing range 701 has been exceeded may be determined using, for example, a remainder obtained by dividing the numerical value of the address by the total number of light emitting points in the horizontal direction.

(2.4) Common Items 2 of Rectangular Area 961 and Rectangular Area 981
Similarly, when the writing position corresponding to the writing destination address exceeds the position corresponding to the right end portion of the liquid crystal screen 125, the drawing calculation unit 104 repeatedly stops drawing. This is because it is impossible to draw beyond the right end of the liquid crystal screen 125. It is desirable to interrupt the repetition when at least the difference between the address at the start of drawing and the current write destination address exceeds the number of light emitting points in the horizontal direction of the liquid crystal display unit 123.

(3) Vertical Repeat Range Next, the vertical drawing range of the drawing range 701 will be described.

(3.1) Drawing of Rectangular Area 961 The drawing calculation means 104 calculates the repeated drawing position of the second line when the image data 602 is repeatedly drawn by one line in the horizontal direction. In the example of FIG. 10, the drawing position of the second line of the rectangular area 961 is obtained as indicated by the arrow 971. Specifically, the write destination address of the rectangular area 961 may be increased until reaching a position that is moved from the upper left end of the drawing range 701 by an amount corresponding to the image height 951 in the vertical direction. . As a result of increasing the writing destination address, when the address becomes larger than the address corresponding to the lower right end portion of the drawing range 701, the writing position exceeds the drawing range 701. Therefore, the drawing calculation unit 104 repeatedly stops drawing.

(3.2) Drawing of Rectangular Area 981 The drawing calculation unit 104 repeatedly draws the rectangular area 981 as well as the rectangular area 961. That is, when the image data 602 is repeatedly drawn for one line in the horizontal direction, the repeated drawing position of the second line is calculated. In the example of FIG. 10, the drawing position of the second line of the rectangular area 981 is obtained as indicated by the arrow 991. In addition, the drawing calculation unit 104 suspends repeated drawing when the writing position corresponding to the writing destination address exceeds the position corresponding to the lower right end of the drawing range 701, similarly to the repetition condition of the rectangular area 961. .

(3.3) Common Items of Rectangular Area 961 and Rectangular Area 981 Similarly, the drawing operation means 104, when the writing position corresponding to the write destination address exceeds the position corresponding to the lower end of the liquid crystal screen 125, Suspend drawing repeatedly. This is because drawing cannot be performed beyond the lower end of the liquid crystal screen 125.

  FIG. 11 is a flowchart illustrating a procedure in which the drawing calculation unit 104 in the state display device according to Embodiment 2 of the present invention repeatedly performs drawing. Hereinafter, each step of FIG. 11 will be described.

(S1001)
When the start instruction is written in the start / end instruction register 107, the drawing operation unit 104 starts the drawing process.

(S1002)
The drawing calculation unit 104 determines whether to continue drawing repeatedly based on the drawing repetition condition 601e using the determination criterion as described with reference to FIG. When the repetition is continued, the process proceeds to step S1003, and when the repetition is terminated, the process proceeds to step S1006.

(S1003)
The drawing calculation unit 104 calculates an address on the storage unit 118 corresponding to the drawing position using the method described with reference to FIG.

(S1004)
The drawing calculation unit 104 determines whether the position corresponding to the address calculated in step S1003 is included in the drawing range 701 using the determination criterion described with reference to FIG. If it is included, the process proceeds to step S1005. If it is not included, the process returns to step S1002, and the same processing is repeated.

(S1005)
The drawing operation unit 104 writes drawing data at an address corresponding to the position where drawing is performed. For example, the color information specified by the drawing request is written at the address.
(S1006)
The drawing calculation unit 104 ends the drawing process.

  In the above description of the repeated drawing procedure, it is assumed that repeated drawing is performed in both the horizontal direction and the vertical direction, but even when performing repeated drawing only in the horizontal direction or only in the vertical direction, The process is similar.

  As described above, the drawing operation unit 104 repeatedly draws the image data 602 while adding the write destination addresses in ascending order according to the drawing repetition condition 601e, so that the drawing operation unit 104 performs repeated drawing. Since the operation can be performed independently of the central processing unit 101 during implementation, the load on the central processing unit 101 can be reduced. Further, since the number of drawing requests is small, it is preferable from the viewpoint of saving the storage area.

  Further, only by preparing small image data in advance, it is possible to draw this image repeatedly and draw a pattern or the like. Thereby, compared with the case where a pattern is drawn by line drawing etc., since the frequency | count of a drawing calculation can be reduced, the efficiency of a drawing process can be improved.

  The drawing calculation unit 104 repeatedly stops drawing when the write destination address on the storage unit 118 exceeds the position corresponding to the right end of the drawing range 701 or the right end of the liquid crystal screen 125. Can properly perform repeated drawing.

  The drawing calculation unit 104 repeatedly stops drawing when the write destination address on the storage unit 118 exceeds a position corresponding to the lower end of the drawing range 701 or the lower end of the liquid crystal screen 125. Can properly perform repeated drawing.

  Note that the drawing operation unit 104 is adding the write destination addresses on the storage unit 118 in ascending order, and does not write until the address reaches the address corresponding to the upper left end of the drawing range 701. It is better not to implement it. This is because if writing is performed when the address does not reach the address corresponding to the upper left end of the drawing range 701, an image is drawn above or to the left of the drawing range 701.

Embodiment 3 FIG.
In the present embodiment, a description will be given focusing on differences from the state display devices according to the first and second embodiments. The configuration of the status display device itself according to the present embodiment is the same as that described in the first embodiment.
In this embodiment, an operation example in which a GUI component such as a button is displayed on the liquid crystal screen 125 in the liquid crystal display unit 123 will be described.

FIG. 12 is a diagram showing an example in which buttons are configured by repeatedly drawing image data in the drawing range 1101 in the state display device according to Embodiment 3 of the present invention. FIG. 12 is a diagram showing an example of the contents of the drawing data stored in the drawing result area 122, and shows a screen image 301 displayed on the liquid crystal screen 125 in place of the drawing data itself for visual explanation.
As shown in FIG. 12, in the drawing range 1101 on the screen image 301, a gradation image that gradually fades is repeatedly drawn around the “button”. This makes it possible to form a visual effect as if the periphery of the “button” is not surrounded by a simple line but is surrounded by a blurred border.

  Similarly, it is possible to form a visual effect as if there is a shadow around the “button” by repeatedly drawing the image data composed of two colors around the “button”. Alternatively, a visual effect such as a glossy highlight can be created.

Embodiment 4 FIG.
In the present embodiment, a description will be given focusing on differences from the state display devices according to the first and second embodiments. The configuration of the status display device itself according to the present embodiment is the same as that described in the first embodiment.
In the present embodiment, an operation example is described in which drawing processing is performed from the position on the image data that has been shifted in excess when each coordinate value in the upper left coordinates of the drawing range is divided by the width and height values of the image data. .

FIG. 13 is a diagram showing an example of the contents of data stored in the drawing request area 121 in the state display device according to Embodiment 4 of the present invention.
As shown in FIG. 13A, a drawing request 801 is stored in the drawing request area 121 in the storage unit 118.

  The drawing request 801 includes a drawing start instruction 801a, a drawing function instruction (image remainder) 801b, a drawing range upper left coordinate 801c, a drawing range lower right coordinate 801d, a drawing repetition condition 801e, and a drawing image address 801f.

  When the drawing function instruction (image remainder) 801b instructs that the image data should be drawn by the remainder, the drawing image address 801f stores the address on the storage unit 118 of the image data 602 to be drawn. The drawing repetition condition 801e stores a repetition condition for repeatedly drawing the same image data by shifting by the remainder.

  FIG. 13B shows the contents of the drawing data stored in the drawing result area 122 in response to the drawing request 801 shown in FIG. 13A. Here, for the sake of visual explanation, the drawing data itself is shown. Instead of this, a screen image 301 displayed on the liquid crystal screen 125 is shown. Hereinafter, the following steps (1) to (5) will be described with reference to FIG.

(1) The drawing operation unit 104 obtains a drawing request based on the address stored in the instruction address register 106, and performs the drawing process based on the drawing request as shown in FIG. The operation is the same as that described above. The drawing calculation unit 104 acquires the drawing request 801 based on the address stored in the instruction address register 106.

(2) The drawing calculation unit 104 determines that this drawing process is a process of drawing screen data using a remainder in accordance with a drawing function instruction (image remainder) 801b in the drawing request 801.

(3) The drawing calculation unit 104 divides the horizontal coordinate (hereinafter referred to as X coordinate) in the upper left coordinate of the drawing range 610 indicated by the drawing range upper left coordinate 801c by the width of the image data 602 (hereinafter referred to as Mod (X ))). Here, since the X coordinate of the upper left coordinate of the drawing range 610 is “0”, the remainder divided by the width value “2” of the image data 602 is Mod (X) = 0.

(4) The drawing calculation unit 104 divides the vertical coordinate (hereinafter referred to as Y coordinate) in the upper left coordinate of the drawing range 610 indicated by the drawing range upper left coordinate 801c by the height of the image data 602 (hereinafter referred to as Mod ( Y)) is calculated. Here, since the Y coordinate of the upper left coordinate of the drawing range 610 is “0”, the remainder divided by the height value “4” of the image data 602 is Mod (Y) = 0.

(5) The drawing calculation means 104 starts from the pixel information shifted from the upper left coordinates of the drawing range 610 to the right by Mod (X) from the upper left pixel information of the image data 602 and down by Mod (Y). Display and display information from the pixel information in the image data 602 to the right and the information to the right in the direction from the upper left coordinate of the drawing range 610 to the right and the direction to the lower right of the drawing range 610. Draw until the coordinates are reached.

  For each coordinate included in the drawing range 610, Mod (X) and Mod (Y) that are remainders are calculated, and right by the amount of Mod (X) from the pixel information at the upper left of the image data 602 for each coordinate. In addition, the pixel information shifted downward by Mod (Y) may be displayed.

  The drawing result by the above operation is shown in FIG. Here, since the remainder in the X coordinate and the Y coordinate is both “0” and the size of the drawing range 610 is the same as the size of the image data 602, the image data 602 is displayed as it is in the drawing range 610.

FIG. 14 is a diagram showing another content example of data stored in the drawing request area 121 in the state display device according to Embodiment 4 of the present invention.
As shown in FIG. 14A, a drawing request 802 is stored in the drawing request area 121 in the storage unit 118.

  The drawing request 802 includes a drawing start instruction 802a, a drawing function instruction (image remainder) 802b, a drawing range upper left coordinate 802c, a drawing range lower right coordinate 802d, a drawing repetition condition 802e, and a drawing image address 802f.

  When the drawing function instruction (image remainder) 802b instructs that the image data should be drawn by the remainder, the drawing image address 802f stores the address on the storage unit 118 of the image data 602 to be drawn. The drawing repetition condition 802e stores a repetition condition for repeatedly drawing the same image data by shifting by the remainder.

  FIG. 14B shows the contents of the drawing data stored in the drawing result area 122 in response to the drawing request 801 shown in FIG. 14A. Here, for the sake of visual explanation, the drawing data itself is shown. Instead of this, a screen image 301 displayed on the liquid crystal screen 125 is shown. Hereinafter, a procedure for drawing screen data using a remainder will be described with reference to FIG. 14 in the following steps (1) to (5).

(1) The drawing operation unit 104 obtains a drawing request based on the address stored in the instruction address register 106, and performs the drawing process based on the drawing request as shown in FIG. The operation is the same as that described above. The drawing operation unit 104 acquires the drawing request 802 based on the address stored in the instruction address register 106.

(2) The drawing calculation unit 104 determines that this drawing process is a process of drawing screen data using a remainder in accordance with a drawing function instruction (image remainder) 802 b in the drawing request 802.

(3) The drawing calculation unit 104 calculates a remainder Mod (X) obtained by dividing the X coordinate at the upper left coordinate of the drawing range 710 indicated by the drawing range upper left coordinate 802c by the width of the image data 602. Here, since the X coordinate of the upper left coordinate of the drawing range 710 is “1”, the remainder divided by the width value “2” of the image data 602 is Mod (X) = 1.

(4) The drawing calculation unit 104 calculates a remainder Mod (Y) obtained by dividing the Y coordinate at the upper left coordinate of the drawing range 710 indicated by the drawing range upper left coordinate 802c by the height of the image data 602. Here, since the Y coordinate of the upper left coordinate of the drawing range 710 is “0”, the remainder divided by the height value “4” of the image data 602 is Mod (Y) = 0.

(5) The drawing calculation means 104 starts from the pixel information shifted from the upper left coordinates of the drawing range 710 to the right by Mod (X) from the upper left pixel information of the image data 602 and downward by Mod (Y). Display the information from the pixel information in the image data 602 to the right and the information to the lower side in the direction from the upper left coordinate of the drawing range 710 to the right and the direction to the lower right. Draw until the coordinates are reached. Here, since the right end of the image data 602 is reached before reaching the right end of the drawing range 710, further drawing is performed from the pixel information on the left end of the image data 602 in this case. That is, when the right end of the image data is reached before reaching the right end of the drawing range, the image data is drawn from the left end of the image data, and when the lower end of the image data is reached before reaching the lower end of the drawing range, the image data Draw from the top edge of.

  For each coordinate included in the drawing range 710, Mod (X) and Mod (Y) that are remainders are calculated, and right by the amount of Mod (X) from the pixel information at the upper left of the image data 602 for each coordinate. In addition, the pixel information shifted downward by Mod (Y) may be displayed.

  The drawing result by the above operation is shown in FIG. Here, the remainder in the X coordinate is “1” and the remainder in the Y coordinate is “0”, and the size of the drawing range 710 is the same as the size of the image data 602, so the image data 602 is left and right in the drawing range 710. The reversed state is displayed.

FIG. 15 is a diagram showing an example of the contents of drawing data in the drawing result area 122 in the state display device according to Embodiment 4 of the present invention. Here, for visual explanation, a screen image 301 displayed on the liquid crystal screen 125 is shown instead of the drawing data itself.
As shown in FIG. 15, the drawing request area 121 stores drawing requests 901 to 905.

  The drawing request 901 has the same data structure as the drawing request 801 in FIG. 13 and the drawing request 802 in FIG. 14, but in FIG. 15, only the drawing range upper left coordinate 901c, the drawing range lower right coordinate 901d, and the drawing image address 901f. Show. The same applies to the drawing request 902 to the drawing request 905.

  The drawing request 902 has a drawing range upper left coordinate 902c, a drawing range lower right coordinate 902d, and a drawing image address 902f.

  The drawing request 903 includes a drawing range upper left coordinate 903c, a drawing range lower right coordinate 903d, and a drawing image address 903f.

  The drawing request 904 includes a drawing range upper left coordinate 904c, a drawing range lower right coordinate 904d, and a drawing image address 904f.

  The drawing request 905 includes a drawing range upper left coordinate 905c, a drawing range lower right coordinate 905d, and a drawing image address 905f.

  Hereinafter, with reference to FIG. 15, the following steps (1) to (5) will be described with respect to a procedure for drawing screen data with a remainder in response to a plurality of drawing requests. Note that drawing processing by a plurality of drawing requests is the same as the operation content described in FIG. 4 and FIG. 6 in the first embodiment, and therefore only the operation content of the drawing processing based on each drawing request is shown here.

(1) The drawing calculation unit 104 calculates the remainder Mod (X) obtained by dividing the X coordinate at the upper left coordinate of the drawing range 911 indicated by the upper left coordinate 901c of the drawing request 901 by the width of the image data 603, and the upper left of the drawing range. A remainder Mod (Y) obtained by dividing the Y coordinate at the upper left coordinate of the drawing range 911 indicated by the coordinate 901c by the height of the image data 603 is calculated. Here, since the X coordinate of the upper left coordinate of the drawing range 911 is “0” and the Y coordinate is “0”, the remainder divided by the width value “8” of the image data 603 is Mod (X) = 0, And Mod (Y) = 0. Then, the drawing calculation unit 104 shifts pixel information shifted from the upper left coordinates of the drawing range 911 to the right by Mod (X) = 0 and downward by Mod (Y) = 0 from the upper left pixel information of the image data 603. Are drawn until the bottom right coordinate of the drawing range 911 is reached.

(2) The drawing calculation unit 104 calculates the remainder Mod (X) obtained by dividing the X coordinate in the upper left coordinate of the drawing range 912 indicated by the upper left coordinate 902c of the drawing request 902 by the width of the image data 603, and the upper left of the drawing range. A remainder Mod (Y) obtained by dividing the Y coordinate at the upper left coordinate of the drawing range 912 indicated by the coordinate 902c by the height of the image data 603 is calculated. Here, since the X coordinate of the upper left coordinate of the drawing range 912 is “8” and the Y coordinate is “0”, the remainder divided by the width value “8” of the image data 603 is Mod (X) = 0, And Mod (Y) = 0. Then, the drawing calculation unit 104 shifts pixel information shifted from the upper left coordinates of the drawing range 912 to the right by Mod (X) = 0 and downward by Mod (Y) = 0 from the upper left pixel information of the image data 603. Are drawn until the bottom right coordinate of the drawing range 912 is reached.

(3) The drawing calculation unit 104 calculates the remainder Mod (X) obtained by dividing the X coordinate in the upper left coordinate of the drawing range 913 indicated by the upper left coordinate 903c of the drawing request 903 by the width of the image data 603, and the upper left of the drawing range. The remainder Mod (Y) obtained by dividing the Y coordinate at the upper left coordinate of the drawing range 913 indicated by the coordinate 903c by the height of the image data 603 is calculated. Here, since the X coordinate of the upper left coordinate of the drawing range 913 is “12” and the Y coordinate is “0”, the remainder divided by the width value “8” of the image data 603 is Mod (X) = 4, And Mod (Y) = 0. Then, the drawing calculation unit 104 shifts pixel information shifted from the upper left coordinates of the drawing range 913 to the right by Mod (X) = 4 and downward by Mod (Y) = 0 from the upper left pixel information of the image data 603. Are drawn until the lower right coordinates of the drawing range 913 are reached.

(4) The drawing calculation unit 104 calculates the remainder Mod (X) obtained by dividing the X coordinate in the upper left coordinate of the drawing range 914 indicated by the drawing range upper left coordinate 904c of the drawing request 904 by the width of the image data 603, and the upper left of the drawing range. A remainder Mod (Y) obtained by dividing the Y coordinate at the upper left coordinate of the drawing range 914 indicated by the coordinate 904c by the height of the image data 603 is calculated. Here, since the X coordinate of the upper left coordinate of the drawing range 914 is “16” and the Y coordinate is “4”, the remainder divided by the width value “8” of the image data 603 is Mod (X) = 0, And Mod (Y) = 4. Then, the drawing calculation unit 104 shifts pixel information shifted from the upper left coordinates of the drawing range 914 to the right by Mod (X) = 0 and downward by Mod (Y) = 4 from the upper left pixel information of the image data 603. And drawing until reaching the lower right coordinate of the drawing range 914.

(5) The drawing calculation unit 104 calculates the remainder Mod (X) obtained by dividing the X coordinate in the upper left coordinate of the drawing range 915 indicated by the upper left coordinate 905c of the drawing request 905 by the width of the image data 603, and the upper left of the drawing range. A remainder Mod (Y) obtained by dividing the Y coordinate at the upper left coordinate of the drawing range 915 indicated by the coordinate 905c by the height of the image data 603 is calculated. Here, since the X coordinate of the upper left coordinate of the drawing range 915 is “16” and the Y coordinate is “0”, the remainder divided by the width value “8” of the image data 603 is Mod (X) = 0, And Mod (Y) = 4. Then, the drawing calculation unit 104 shifts pixel information shifted from the upper left coordinates of the drawing range 915 to the right by Mod (X) = 0 and downward by Mod (Y) = 4 from the upper left pixel information of the image data 603. Are drawn until the bottom right coordinate of the drawing range 915 is reached.

  As described above, the drawing operation unit 104 repeatedly draws the image data while adding the write destination addresses in ascending order according to the drawing repetition condition, so that the drawing operation unit 104 performs the repeated drawing. Since the operation can be performed independently of the central processing unit 101, the load on the central processing unit 101 can be reduced. Further, since the number of drawing requests is small, it is preferable from the viewpoint of saving the storage area.

  Also, by using the image data, by performing the drawing process from the position on the image data that is shifted by the excess when each coordinate value in the upper left coordinate of the drawing range is divided by the width and height values of the image data A part of the image portion can be cut out and displayed from one image data, and various kinds of drawing processes can be performed. Also in this case, since the number of drawing operations can be reduced as compared with the case of drawing by line drawing or the like, the efficiency of the drawing process can be improved.

  101 Central processing means, 102 Main register, 103 Instruction address register, 104 Drawing operation means, 105 Drawing register, 106 Instruction address register, 107 Start / end instruction register, 108 Interrupt factor register, 109 Drawing address register, 110 Drawing function, 111 Interpretation function, 112 line drawing function, 113 square frame drawing function, 114 square painting drawing function, 115 image drawing function, 116 drawing range restriction storage, 117 drawing availability state storage, 118 storage means, 119 display program area, 120 device control program Area, 121 drawing request area, 122 drawing result area, 123 liquid crystal display unit, 124 display address register, 125 liquid crystal screen, 131-136 arrow, 201 drawing request, 201a drawing start instruction, 20 b Drawing function instruction (square frame), 201c Drawing range upper left coordinate, 201d Drawing range lower right coordinate, 201e Drawing thickness, 201f Drawing color (black), 202 Drawing request, 202a Drawing start instruction, 202b Drawing function instruction (Drawing range) ), 202c Drawing range upper left coordinate, 202d Drawing range lower right coordinate, 203 Drawing request, 203a Drawing start instruction, 203b Drawing function instruction (square painting), 203c Drawing range upper left coordinate, 203d Drawing range lower right coordinate, 203e Drawing thickness , 203f Drawing color (gray), 204 Drawing request, 204a Drawing start instruction, 204b Drawing function instruction (line drawing), 204c Drawing range upper left coordinate, 204d Drawing range lower right coordinate, 204e Drawing thickness, 204f Drawing color (black) , 301 screen image, 302 rectangle, 303 rectangle painting, 304 lines, 401 Drawing 1 request, 402 Drawing 2 request, 403 End 2 request, 404 Drawing 3 request, 405 Drawing 4 request, 406 End 1 request, 411 Interrupt, 412 Factor 2 end, 413 Interrupt, 414 Factor 1 end, 501 Drawing request Group 1, 502 Drawing 1 request, 503 Drawing 2 request, 504 Drawing 3 request, 505 Address change request, 506 Drawing request group 2, 507 Drawing 4 request, 508 Drawing 5 request, 509 Drawing 6 request, 510 End 1 request, 601 Drawing request, 601a Drawing start instruction, 601b Drawing function instruction (image), 601c Drawing range upper left coordinate, 601d Drawing range lower right coordinate, 601e Drawing repetition condition, 601f Drawing image address, 602, 603 Image data, 610, 701, 710 Drawing range, 801 Drawing request, 801a Drawing start instruction, 801b Drawing function instruction (image remainder), 801c drawing range upper left coordinate, 801d drawing range lower right coordinate, 801e drawing repetition condition, 801f drawing image address, 802 drawing request, 802a drawing start instruction, 802b drawing function instruction (image remainder), 802c Drawing range upper left coordinate, 802d Drawing range lower right coordinate, 802e Drawing repetition condition, 802f Drawing image address, 901 Drawing request, 901c, Drawing range upper left coordinate, 901d Drawing range lower right coordinate, 901f Drawing image address, 902 Drawing request , 902c Drawing range upper left coordinate, 902d Drawing range lower right coordinate, 902f Drawing image address, 903 drawing request, 903c Drawing range upper left coordinate, 903d Drawing range lower right coordinate, 903f Drawing image address, 904 Drawing request, 904c Drawing range upper left coordinate 904d Lower-right coordinates of image range, 904f Drawing image address, 905 Drawing request, 905c Upper-left coordinates of drawing range, 905d Lower-right coordinates of drawing range, 905f Drawing image address, 911-915 Drawing range, 951 Image height, 952 Image width, 955 drawing Width, 956 Drawing height, 961 Rectangular area, 971 arrow, 981 Rectangular area, 991 arrow, 1101 Drawing range.

Claims (5)

A liquid crystal display,
A drawing calculation unit for performing drawing calculation necessary for the liquid crystal display unit to display a screen;
A central processing unit for generating a drawing request for causing the drawing operation unit to perform the drawing operation;
A storage unit in which the drawing operation unit and the central operation unit can read and write data;
With
The drawing request includes a drawing range indicating a range to be displayed on the liquid crystal display unit,
The central processing unit stores the drawing request in the storage unit,
The storage unit stores image data such as graphics or characters,
The drawing operation unit
A register for holding an address at which the drawing request is stored in the storage unit;
It acquires the drawing requests stored in the storage unit based on the address held in front Symbol register,
A drawing operation is performed according to the drawing request, and the result of the drawing operation is stored in the storage unit as drawing data necessary for the liquid crystal display unit to display a screen.
If there is a next successive drawing request, write the address of the next drawing request to the register,
The liquid crystal display unit is configured to display a screen based on the drawing data stored in the storage unit ,
When the drawing request is an image remainder drawing request for instructing that the image data should be drawn by a remainder, the drawing operation unit displays the display coordinates in the liquid crystal display unit indicated by the drawing range, Calculating a remainder divided by the width of the image data, and performing a drawing operation for generating the drawing data for displaying the data that is to the right of the number of remainders from the left end of the image data in the display coordinates. Status display device. When the drawing request is a drawing request for the image remainder,
Calculating a remainder obtained by dividing the display coordinates in the liquid crystal display unit indicated by the drawing range by the height of the image data;
2. The state display device according to claim 1, wherein the drawing data for displaying data lower than the upper end of the image data by the remainder in the display coordinates is generated. A liquid crystal display,
A drawing calculation unit for performing drawing calculation necessary for the liquid crystal display unit to display a screen;
A central processing unit for generating a drawing request for causing the drawing operation unit to perform the drawing operation;
A storage unit in which the drawing operation unit and the central operation unit can read and write data;
With
The drawing request includes a drawing range indicating a range to be displayed on the liquid crystal display unit,
The central processing unit stores the drawing request in the storage unit,
The storage unit stores image data such as graphics or characters,
The drawing operation unit
A register for holding an address at which the drawing request is stored in the storage unit;
It acquires the drawing requests stored in the storage unit based on the address held in front Symbol register,
A drawing operation is performed according to the drawing request, and the result of the drawing operation is stored in the storage unit as drawing data necessary for the liquid crystal display unit to display a screen.
If there is a next successive drawing request, write the address of the next drawing request to the register,
The liquid crystal display unit is configured to display a screen based on the drawing data stored in the storage unit ,
When the drawing request is an image remainder drawing request that indicates that the image data should be drawn by a remainder, the drawing operation unit displays the display coordinates of the left end in the liquid crystal display unit indicated by the drawing range Is calculated by dividing the image data by the width of the image data, and from the display coordinates at the left end of the drawing range, the data on the right side of the base point is the data that is to the right of the number of remainders from the left end of the image data. When the right end data of the image data is reached before reaching the display coordinates at the right end of the drawing range, the data on the right side is displayed starting from the left end data of the image data. A state display device that performs a drawing operation for generating drawing data . When the drawing request is a drawing request for the image remainder,
Calculating the remainder obtained by dividing the display coordinates of the upper end of the liquid crystal display unit indicated by the drawing range by the height of the image data;
From the display coordinates at the upper end of the drawing range, the lower data is displayed starting from the data lower than the upper end of the image data by the remainder, and before reaching the display coordinates at the lower end of the drawing range. 4. The state according to claim 3, wherein when the data at the lower end of the image data is reached, the drawing data for displaying the lower data starting from the data at the upper end of the image data is generated. Display device. The liquid crystal display unit is composed of a full-dot liquid crystal display device,
The drawing operation unit
Information indicating the light emission position and the light emission color in the liquid crystal display unit is stored in the storage unit as the drawing data,
The liquid crystal display unit
The state display device according to any one of claims 1 to 4 , wherein a screen is displayed based on the light emission position and the light emission color designated by the drawing data.

Images