WO2012172818A1

WO2012172818A1 - Color display circuit for liquid crystal display

Info

Publication number: WO2012172818A1
Application number: PCT/JP2012/003938
Authority: WO
Inventors: 丈晴岩田
Original assignee: テルモ株式会社
Priority date: 2011-06-16
Filing date: 2012-06-15
Publication date: 2012-12-20

Abstract

[Problem] To provide a color display circuit for liquid crystal display, said color display circuit being capable of rapidly displaying information contents in color in a liquid crystal display device, and furthermore, being capable of reducing manufacture cost. [Solution] A color display circuit (100) for liquid crystal display has: a central processor (101); display data memory (111) that stores display data (D2) to be displayed by a liquid crystal display device (3); a color display processing unit (300) which fetches, on the basis of display screen configuration information (D1) supplied to the central processor (101), the display data (D2) from the display data memory (111), adds color information (CL) to the display data (D2), and assembles, on the basis of the display data (D2), screen data (D3) that includes information contents to be displayed on the screen of the liquid crystal display device (3); and frame memory (112), which stores the screen data (D3) that has been assembled with the color information added thereto.

Description

Circuit for color display of liquid crystal display

The present invention relates to a color display circuit for liquid crystal display for color display on a liquid crystal display device provided in a medical device such as a syringe pump for delivering a medicine or the like to a patient.

As an example of a medical device, a syringe pump is used. For example, this syringe pump is used in an intensive care unit (ICU) or the like, and is used for an anticancer agent, an anesthetic agent, a chemotherapeutic agent, a blood transfusion, a nutritional agent, etc. It is used to perform the liquid feeding treatment of the drug with high accuracy for a relatively long time. The syringe body filled with the drug is set so as not to move using the clamp with respect to the syringe pump, and the syringe pump presses the syringe pusher by driving the motor to accurately move the drug in the syringe body to the patient side. Deliver liquid.

A medical device such as a syringe pump is provided with a liquid crystal display (LCD) for displaying, for example, a scheduled amount of drug administration, an integrated amount of drug administration, and the like. This liquid crystal display device displays information contents such as numerical values and warnings in color graphics, so that a medical worker can be visually alerted. When a color graphic display is to be performed by a liquid crystal display device, the frame buffer and the main memory are integrated, and the CPU (central processing unit) performs graphic processing, thereby reducing the hardware scale of the graphics computer. Patent Document 1 discloses reducing the cost by reducing the cost.

JP 7-225849 A

However, although the scale of the graphics computer hardware described in Patent Document 1 is reduced, since the CPU itself performs graphics processing, the CPU does not use a general-purpose low-performance CPU, but a dedicated design. Therefore, when such a high performance CPU is used, the cost is unavoidable. Moreover, in order for medical staff to use the medical equipment, it is necessary to visually draw attention to the medical staff about the information content such as necessary numerical values and warnings so that the medical equipment can be operated accurately. In addition, it is desirable to enable quick color display.
SUMMARY OF THE INVENTION An object of the present invention is to provide a color display circuit for liquid crystal display that can quickly display information contents in a liquid crystal display device and reduce the manufacturing cost.

The color display circuit for liquid crystal display of the present invention is a color display circuit for liquid crystal display for color display on a liquid crystal display device provided in an apparatus, and is for a central processing unit and display data for storing display data. Based on the memory and display screen configuration information supplied to the central processing unit, the display data is fetched from the display data memory to add color information to the display data, and from the display data to the liquid crystal display device A color display processing unit for assembling screen data including information content to be displayed on the screen, and a frame memory for storing the screen data assembled by adding the color information.
According to the above configuration, the information content can be quickly displayed in color on the liquid crystal display device, and the manufacturing cost can be reduced. That is, the display processing of the screen data including the information content to be displayed on the liquid crystal display device is not performed by the central processing unit, but is handled by the color display processing unit which is added hardware, and the color display processing unit displays the display data. Therefore, the display speed of the screen data in the liquid crystal display device can be improved. Moreover, since the central processing unit is freed from the image processing operation of screen data including information contents, it is not necessary to use a high-performance central processing unit, and a low-performance central processing unit can be adopted, so that the manufacturing cost can be reduced. .

Preferably, the color display processing unit includes a color instruction unit for adding color information to the display data.
According to the above configuration, the color instruction unit of the color display processing unit can add color information to the display data because the color display processing unit can add color information to the display data memory side. Since there is not, the storage capacity of the display data memory can be reduced.
Preferably, the color display processing unit fetches the screen data from the frame memory and supplies the screen data to the liquid crystal display device to display the screen data in color.
According to the above configuration, the color display processing unit can capture the screen data from the frame memory and display the screen data including the information contents in color on the liquid crystal display device.

Preferably, a display screen configuration information memory is provided for storing the display screen configuration information and supplying the display screen configuration information to the central processing unit.
According to the above configuration, the display screen configuration information memory can provide the display screen configuration information, which is an instruction content to the color display processing unit, to the central processing unit, and the central processing unit performs color display processing on the display screen configuration information. A general-purpose central processing unit can be used because it only needs to be transmitted to the unit.
Preferably, the device is a medical device.
According to the above configuration, the color display required in the liquid crystal display unit of the medical device can be quickly performed.

Preferably, the medical device is a medical pump for supplying a medicine to a patient.
According to the above configuration, the color display required for the medical pump can be quickly performed.
Preferably, the medical device is a peritoneal dialysis device.
According to the said structure, the color display which a peritoneal dialysis apparatus requires can be performed rapidly.
Preferably, with respect to the display on the display screen of the medical device, only a portion requiring attention from a medical worker or a user is specially displayed in color.
According to the above configuration, in the color display of the display screen in the medical device, an effective display can be achieved without waste, and the ease of use and the safety can be improved.

The present invention can provide a color display circuit for a liquid crystal display that can quickly display information contents in a liquid crystal display device and reduce the manufacturing cost.

The perspective view which shows the syringe pump which is an example of the medical device which has preferable embodiment of the circuit for color display of the liquid crystal display of this invention. FIG. The perspective view which looked at the syringe pump shown in FIG. 1 from the W direction. The figure which shows the structural example of the circuit for a color display arrange | positioned in the syringe pump shown in FIG. 1 and FIG. The conceptual diagram of the bit convolution in the memory for display data shown in FIG. The flowchart which shows the operation processing example of the circuit for color displays. The figure which shows the example of the information content displayed on the display part shown in FIG. 2 and FIG. The figure which shows the example of the information content displayed on the display part shown in FIG. 2 and FIG. The figure which shows the structural example of the circuit for color displays in another embodiment of this invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.
The embodiments described below are preferred specific examples of the present invention, and thus various technically preferable limitations are given. However, the scope of the present invention is particularly limited in the following description. Unless otherwise stated, the present invention is not limited to these embodiments.
FIG. 1 is a perspective view showing a syringe pump as an example of a medical device having a preferred embodiment of a color display circuit for liquid crystal display of the present invention. FIG. 2 is a perspective view of the syringe pump shown in FIG. 1 as viewed from the W direction.
A syringe pump 1 shown in FIGS. 1 and 2 is an example of a medical pump that is a medical device, and is used in, for example, an intensive care unit or the like, and an anticancer agent, an anesthetic agent, a chemotherapeutic agent, blood transfusion is performed on a patient. A micro continuous infusion pump used for performing a micro infusion treatment of a medicine such as a nutrient with a high accuracy for a relatively long time.

As shown in FIGS. 1 and 2, the syringe pump 1 can be set so that the syringe body 201 of the syringe 200 filled with, for example, a medicine does not move using the clamp 5. When the motor M shown in FIG. 2 rotates the drive shaft of the syringe pusher drive unit 7, the slider 10 of the syringe pusher drive unit 7 pushes the syringe pusher 202 of the syringe 200 in the T direction, and the syringe body. As shown in FIG. 2, the medicine in 201 is accurately fed to the patient P via the tube 203 and the indwelling needle 204.
The syringe pump 1 has a main body cover 2, which is also called a main body portion. The main body cover 2 is integrally formed of a molded resin material having chemical resistance, and enters the inside of the syringe pump 1 even if a drug or the like is applied. It has a splash-proof treatment structure that can prevent this.

First, the elements disposed on the body cover 2 of the syringe pump 1 will be described.
As shown in FIG. 2, the syringe pump 1 has a main body cover 2 and a handle 2T. A display unit 3 and an operation panel unit 4 are disposed on the upper portion 2 A of the main body cover 2. A syringe setting unit 6, a motor M, and a syringe pusher drive unit 7 are disposed in the lower part 2 B of the main body cover 2. As a result, the medical staff carries out the liquid feeding operation of the medicine from the syringe 200 while visually confirming the information content displayed in color on the display portion 3 of the upper portion 2A of the main body cover 2 as described later. It can be carried out. Then, the medical staff can operate the operation buttons on the operation panel unit 4 while confirming the information content displayed in color on the display unit 3 of the main body cover 2.

The display unit 3 shown in FIGS. 1 and 2 is a color liquid crystal display (LCD) capable of color graphic display. The display unit 3 can display not only the information contents in Japanese notation such as various numerical values and warnings but also the information contents in a plurality of foreign languages as required. The display unit 3 is located at the upper left position of the upper portion 2 A of the main body cover 2 and above the syringe setting unit 6 and the syringe pusher driving unit 7. The operation panel unit 4 is disposed on the right side of the display unit 3 in the upper portion 2A of the main body cover 2, and the operation panel unit 4 includes operation buttons such as a pilot lamp 4A, a fast-forward switch button 4B, and a start switch in the illustrated example. A button 4C, a stop switch button 4D, a menu selection button 4E, and the like are arranged.

The upper part 2A of the main body cover 2 shown in FIG. The lower part 2 B of the main body cover 2 is a lower half part of the main body cover 2. It should be noted that a mark of the pump is displayed on the peripheral part or a part of the main body cover 2, preferably by applying a color different from the surface color of the main body cover 2, for example, yellow or red sealing material, or painting. Can do. By providing a mark for this pump, when a plurality of infusion pumps 1 are used in a stacked manner, or when this syringe pump 1 and other types of pumps such as an infusion pump are used in a stacked manner, the boundary between each pump is used. Has the merit of becoming clear visually.

As shown in FIGS. 1 and 2, the syringe setting unit 6 and the syringe pusher drive unit 7 are arranged side by side along the X direction. The syringe setting unit 6 can select and attach the necessary amount of syringe 200 from among a plurality of types of syringes having different amounts of accommodation.
The syringe setting unit 6 shown in FIGS. 1 and 2 includes a housing unit 8 that houses the syringe body 201, a clamp 5, and a body flange gripping part 500 for fitting and gripping the body flange 209 of the syringe 200. Yes. The accommodating part 8 has a concave syringe body holding part 8D. A tube fixing portion 9 for detachably sandwiching the tube 203 is formed in the wall portion at the left end of the housing portion 8. The tube fixing portion 9 is a groove portion that sandwiches and fixes a part of the tube 203.

1 and 2, when a medical worker operates the clamp 5 and removes the syringe 200 from the syringe setting unit 6, for example, the clamp 5 is resisted against the force of a spring (not shown) in the Y1 direction (frontward direction). And the clamp 5 is separated from the outer peripheral surface of the syringe body 201 by turning 90 degrees in the R1 direction. As a result, the syringe body 201 can be released from the syringe body holding portion 8D of the housing portion 8 and the tube 203 can be removed from the tube fixing portion 9 by releasing the fixation by the clamp 5.
Further, when the clamp 5 is operated and the syringe 200 is accommodated and attached in the accommodating portion 8 of the syringe setting portion 6, the clamp 5 is pulled in the Y1 direction against the force of a spring (not shown) to be 90 in the R2 direction. The syringe body 201 is housed in the syringe body holding part 8D of the housing part 8 and the tube 203 is fitted in the tube fixing part 9 by rotating it and returning to the Y2 direction by the force of the spring. 5 can be fixed.

As shown in FIGS. 1 and 2, when the syringe body 201 is housed and mounted in the syringe body holding section 8D of the housing section 8, the syringe pusher 202 is disposed in the syringe pusher drive section 7. The syringe pusher drive unit 7 has a slider 10 as a moving member. When the motor M is driven by a command from the control unit, the slider 10 pushes the pusher flange 205 of the syringe pusher 202 little by little along the T direction relative to the syringe body 201. Thereby, the medicine in the syringe main body 201 can be delivered to the patient P with high accuracy over a relatively long time through the tube 203 and the indwelling needle 204. Note that the X direction, the Y direction, and the Z direction in FIGS. 1 and 2 are orthogonal to each other, and the Z direction is the vertical direction.

Next, a color display circuit 100 for liquid crystal display according to an embodiment of the present invention will be described with reference to FIG.
A color display circuit 100 shown in FIG. 3 is arranged on a circuit board in the main body cover 2 shown in FIG. 2 and is a circuit for causing the display unit 3 to display screen data including information contents in a color graphic display.
As shown in FIG. 3, the color display circuit 100 includes a CPU (Central Processing Unit) 101, a CPU memory 102, a color display processing unit 300, a single display data memory 111, and a frame memory 112. is doing. A color display processing unit 300 as hardware is added between the general-purpose CPU memory 102, the display data memory 111, and the frame memory 112.

The CPU 101 in FIG. 3 uses a general-purpose CPU that can be obtained at low cost. The CPU memory 102 in FIG. 3 is electrically connected to the CPU 101. As the CPU memory 102, for example, an EEPROM (electrically erasable programmable read only memory (PROM)) or the like is employed.
A CPU memory 102 in FIG. 3 is a display screen configuration information memory that stores display screen configuration information D1 to be displayed on the display unit 3. The CPU memory 102 reads display screen configuration information D1 stored in advance and supplies it to the CPU 101. The display screen configuration information D1 is an instruction content for giving information content to the color display processing unit 300. The display screen configuration information D1 is displayed on the display screen of the display unit 3 by the color display processing unit 300. This is a content for instructing at which position an image is to be displayed.

The display data memory 111 in FIG. 3 is electrically connected to the color display processing unit 300 and stores display data D2 including image data and character data to be displayed on the display unit 3, and the color data is I don't remember. As the display data memory 111, for example, a FLASH memory (nonvolatile semiconductor memory) or the like is used.

The color display processing unit 300 in FIG. 3 is hardware that is additionally electrically connected to the general-purpose CPU 101, and is a custom IC such as a gate array or FPGA (an integrated circuit whose configuration can be set after purchase). (Integrated circuit). The display unit 3 is electrically connected to the color display processing unit 300. The CPU 101 transmits the display screen configuration information D 1 to the color display processing unit 300 as instruction content for giving information content to the color display processing unit 300. In addition, the color display processing unit 300 includes a color instruction unit 309 for instructing and adding necessary color information CL to the display data D2 taken into the color display processing unit 300 from the display data memory 111. Yes.

The color display processing unit 300 in FIG. 3 fetches necessary display data D2 from the display data memory 111 based on the display screen configuration information D1 as information indicating the display screen configuration. That is, the color display processing unit 300 can exhibit the function of specifying the display data D2 in the display data memory 111 and taking it from the display data memory 111. The color display processing unit 300 is based on the display screen configuration information D1. Image data, character data, and the like, which are display data D2, are read.
The color display processing unit 300 assembles display data D2 based on the display screen configuration information D1 of the display unit 3, and the color instruction unit 309 of the color display processing unit 300 compresses the color information CL with respect to the display data D2. Thus, the screen data D3 to which the color information CL is added can be created.

In this manner, the color display processing unit 300 can add the color information CL to the display data D2 to create the screen data D3 to which the color information CL is added. There is no need to remember. For this reason, the storage capacity of the display data memory 111 shown in FIG. 3 can be reduced as compared with the case of using a normal display data memory in which even the color information CL is stored in advance. The cost of the memory 111 can be reduced.
Note that the display data memory 111 uses the fact that the storage capacity for storing the color information CL can be reduced. In the syringe pump 1 shown in FIGS. Instead of the information CL, multilingual font information can be stored. Moreover, the display data memory 111 can store a wide variety of GUIs (graphical user interfaces). Therefore, the medical worker can make a display screen of screen data including the information content in the display unit 3 so that the medical worker can intuitively operate while viewing the information content displayed on the display unit 3. .

The frame memory 112 in FIG. 3 is electrically connected to the color display processing unit 300. As the frame memory 112, for example, an SRAM (Static Random Access Memory) or a DRAM (Dynamic Random Access Memory) that stores liquid crystal display data (LCD display data) of the display unit 3 is used.
The frame memory 112 functions as a memory buffer for storing the screen data D3 to which the color information CL is added in the color display processing unit 300, and stores and stores the screen data D3 to which the already created color information CL is added. be able to. In this case, preferably, when the color information CL is added to the screen data D2, only the portion requiring the attention of the medical staff or the user regarding the display on the display screen of the medical device is displayed in a special color. The color information CL may be added so that Thereby, in the color display of the display screen in a medical device, an effective display can be achieved without waste, and the ease of use and safety can be improved. A specific example of the portion requiring the alert will be described later.

Then, the color display processing unit 300 reads the screen data D3 to which the color information CL is added from the frame memory 112 and supplies it to the display unit 3. For example, the display unit 3 is exemplified by screen data D3 including the information content G1 illustrated in FIG. 6A, screen data D3 including the information content G2 illustrated in FIG. 6B, and FIG. 7A. The screen data D3 including the information content G3 and the screen data D3 including the information content G4 illustrated in FIG. 7B can be displayed in color graphics. Since the color display processing unit 300 is good at high-speed processing and parallel processing of display data, the display speed of the screen data D3 on the display unit 3 can be improved.

FIG. 4 is a conceptual diagram of bit convolution in the display data memory 111 shown in FIG.
The display data memory 111 in FIG. 3 performs convolution of the display data D2 in FIG. 3 into parallel data (bit direction) in the display data memory 111 as illustrated in FIG. For example, when font data having a size of 16 × 16 in the vertical and horizontal directions is stored in the display data memory 111, one font data is convolved for each bit so that the number of bits corresponding to the bit width of the memory is stored in the same memory area. Can store fonts.
The display data memory 111 is a parallel memory. Since the data bus between the display data memory 111 and the color display processing unit 300 has a multi-bit configuration such as 16 bits, large-capacity data can be exchanged at high speed. .

By color-multiplexing 1-bit data (font data, image data, etc.) (if 16-bit bus memory, 16 data are multiplexed), the color display processing unit 300 performs once on the display data memory 111. With this memory access, a large amount of display data D2 can be processed. For example, in the example shown in FIG. 4, a memory made by M29W640 Numonyx is used as the display data memory 111 that is actually used, the capacity of this memory is 64 Mbit, and the memory configuration is 4 Mbit × 16 bits. As illustrated in FIG. 4, one word (1 word) is configured by 16 bits, and the color display processing unit 300 displays the 16-bit data by accessing the display data memory 111 once. Data D2 is exchanged. As a result, the color display processing unit 300 accesses the display data memory 111 once to read out a plurality of (16 in the example of FIG. 4) display data D2 by simultaneous processing. Can do. Therefore, the color display processing unit 300, which is hardware, can simultaneously process a plurality of (16 in the example of FIG. 4) display data D2, so that the plurality of read display data D2 can be processed at a time. The screen data D3 including a large amount of information content can be displayed on the display unit 3 by processing.

Next, with reference to FIG. 5, an example of an operation process of the color display circuit 100 of the syringe pump 1 shown in FIG. 3 will be described. FIG. 5 is a flowchart showing an example of operation processing of the color display circuit 100.
In step S 1 of FIG. 5, the CPU 101 reads the display screen configuration information D 1 from the CPU memory 102. That is, the CPU 101 reads the instruction content of the color display processing unit 300 that is hardware from the CPU memory 102. As a result, it is possible to give the CPU 101 information on where the information content is to be displayed on the display screen of the display unit 3.
In step S 2 of FIG. 5, the CPU 101 transmits the display screen configuration information D 1 to the color display processing unit 300 as information for instructing the display screen configuration on the screen of the display unit 3.

In step S3 of FIG. 5, the color display processing unit 300 fetches necessary display data D2 from the display data memory 111 based on the display screen configuration information D1 as information for instructing the display screen configuration. That is, the color display processing unit 300 reads image data, character data, and the like as the display data D2 from the display data memory 111 based on the display screen configuration information D1.
In step S4 of FIG. 5, the color instruction unit 309 of the color display processing unit 300 compresses and adds the color information CL to the captured display data D2, and creates screen data D3 including the color information CL. Thereby, it is not necessary to store even the color information CL in the display data memory 111. In other words, 8 × 3 = 24 bits capacity is provided for each color of red, green, and blue, so that it is necessary to use a normal display data memory that stores color information CL in advance. There is no. Therefore, the storage capacity of the display data memory 111 can be reduced, and the cost of the display data memory 111 can be reduced. The color display processing unit 300 assembles display data D2 including image data and character data based on the display screen configuration information D1 of the display unit 3, and arranges the display data D2 anywhere on the display screen of the display unit 3. Determine.

In step S5 of FIG. 5, the color display processing unit 300 stores screen data D3 including the color information CL assembled by the color display processing unit 300 in step S4 in the frame memory 112. That is, the frame memory 112 functions as a memory buffer that stores the screen data D3 to which the color information CL is added in the color display processing unit 300, and stores and stores the screen data D3 that has been assembled by adding the color information CL. be able to.
In step S 6 of FIG. 5, the color display processing unit 300 reads the screen data D 3 to which the color information CL is added from the frame memory 112 and supplies the screen data D 3 to the display unit 3. Accordingly, the color display processing unit 300 displays the screen data D3 including the information content G1 illustrated in FIG. 6A, the screen data D3 including the information content G2 illustrated in FIG. 6B, and the screen data D3 illustrated in FIG. The screen data D3 including the information content G3 as illustrated and the screen data D3 including the information content G4 as illustrated in FIG. 7B can be displayed in color graphics on the display screen of the display unit 3. Since the color display processing unit 300 is good at high-speed processing and parallel processing of display data, the display speed of the screen data D3 on the display unit 3 can be improved.

FIGS. 6 and 7 show information contents G1 to G4 as display examples displayed on the display unit 3 shown in FIGS.
FIG. 6A shows screen data D3 including information content G1 displayed on the display unit 3. The screen data D3 including the information content G1 displayed on the display unit 3 displays an anesthetic concentration trend display, for example, an indicator area AR0, a display column AR1 of a scheduled drug administration amount, and a display of an integrated amount of drug administration. It includes a column AR2, an anesthetic concentration trend graph AR3, and an entire area AR4.
The indicator area AR0 is displayed in color with a green frame. The display column AR1 of the scheduled dose of drug administration, the display column AR2 of the cumulative dose of drug administration, and the trend graph AR3 of the anesthetic concentration are displayed in color with, for example, a light blue frame. The entire area AR4 is displayed in color with a dark blue frame.
Thus, each area | region of the information content G1 displayed on the display part 3 can be displayed by the color selected arbitrarily. Thereby, since it can color-code for every area | region of the information content G1 displayed on the display part 3, a medical worker alerts visually about the information content G1 with respect to a medical worker, and a medical worker performs information content G1. It is possible to instantly grasp the situation.

FIG. 6B shows screen data D3 including information content G2 displayed on the display unit 3. The screen data D3 including the information content G2 displayed on the display unit 3 is a guidance display example for the medical staff. When the medical device is a syringe pump 1, a syringe 200 filled with a chemical solution is detachably loaded as shown in FIG. 1 instead of an infusion tube, but the information content G2 displayed on the display unit 3 is a syringe. It includes a status display field AR11, a warning field AR12 for displaying a warning when the syringe 200 is not set correctly, and a display area AR13. The syringe state display field AR11 is displayed in color with a thin blue frame, for example. The display area AR13 including the syringe state display field AR11 is displayed in color with a green frame, for example. The warning column AR12 is displayed in color with, for example, a red frame that is an alarm color in order to call attention to a medical worker.

Thus, by color-coding for each area of the information content G2 displayed on the display unit 3, the medical worker is visually alerted to the information content G2, and the medical worker The situation can be grasped instantly visually. In particular, visual alerting can be performed more reliably by selecting a color that can alert a healthcare professional.
By checking the syringe state display field AR11, the medical worker can display which part of the syringe 200 is not set correctly when the syringe 200 is not set correctly. Thus, the syringe 200 can be correctly set again.

FIG. 7A shows screen data D3 including information content G3 displayed on the display unit 3. The screen data D3 including the information content G3 displayed on the display unit 3 shows a warning display field AR14 for displaying a warning to the medical staff. By displaying the entire warning display field AR14 with a warning color such as yellow, for example, a medical worker is particularly warned of the state in which the liquid medicine in the syringe 200 shown in FIG. 1 is running out. Can do.
FIG. 7B shows screen data D3 including information content G4 displayed on the display unit 3. The screen data D3 including the information content G4 displayed on the display unit 3 is an icon display example, and has a plurality of icon areas AR20, AR21, AR22. For example, each icon area AR20 is surrounded by a red dotted line frame, the icon area AR21 is surrounded by a green dotted line frame, and the icon area AR22 is surrounded by a yellow dotted line frame. Can be recognized.
In this way, as shown in FIGS. 6 and 7, the color display processing unit 300 can visually distinguish the information contents by displaying the screen data D3 including the information contents on the display unit 3 in a color graphic. Even if the amount of information content that can be provided to the worker is increased, the visibility of the screen data D3 including the information content can be improved.

Although outside the scope of the present invention, in the color display circuit in the conventional peritoneal dialysis device, if the display data memory is added with color information capable of color display, the memory size increases. In this display data memory, 8 bits are allocated to each of R (red), G (green), and B (blue), and a storage capacity of 8 bits × 3 = 24 bits is required. For this reason, the display data memory becomes expensive and the operation speed decreases. In the conventional color display circuit, since all processing is performed by the CPU, the use of a high-performance CPU is required. In particular, since the current consumption of the CPU increases in proportion to the performance, it is difficult to adopt a high-performance CPU when it is necessary to suppress the current consumption.

Therefore, in the above-described embodiment of the present invention, as shown in FIG. 3, the color display processing unit 300 that is hardware is additionally provided between the CPU 101 and the display unit 3. The CL can be added to the display data D2 by the color instruction unit 309 of the color display processing unit 300. For this reason, since it is not necessary to add color information to the display data memory 111, a 16-bit storage capacity memory can be used as it is, so that the storage capacity of the display data memory 111 can be reduced and displayed. The operating speed of the data memory 111 can be prevented from decreasing, and the cost can be reduced as compared with the case where a display data memory having a capacity of 24 bits is used.

In the embodiment of the present invention, as shown in FIG. 3, the color display processing unit 300, which is hardware, is additionally provided between the CPU 101 and the display unit 3, so that the function of the CPU 101 itself needs to be improved. As the CPU 101, a general-purpose and inexpensive one can be used. That is, also in the embodiment of the present invention shown in FIG. 3, the screen processing displayed on the display unit 3 is handled not by the CPU 101 but by the color display processing unit 300 which is hardware, so that the CPU 101 is released from the image processing work. Therefore, a low performance CPU can be adopted. Moreover, since the color display processing unit 300, which is hardware, is good at high-speed processing and parallel processing of display data, it is possible to improve the speed of image processing in the display unit 3, for example, about 20 fps (frames per second). Video display is also possible.

In the embodiment of the present invention, the CPU 101 itself does not sequentially switch and supply the screen data D3 including the color information CL to the display unit 3, but the color display processing unit 300, which is hardware, displays the screen including the color information CL. The data D3 is sequentially switched and supplied to the display unit 3. For this reason, since the color display processing unit 300 is used, the switching speed of the screen data D3 including the color information CL when supplied to the display unit 3 can be increased. It is possible to alert a medical worker by promptly performing the medical worker.
Further, since the display data memory 111 does not have to store the color information CL in the display data memory 111, the storage capacity of the display data memory 111 can be reduced, and the syringe pump 1 shown in FIGS. In the display data memory 111, multilingual fonts can be stored instead of the color information. In addition, since the display data memory 111 can store a wide variety of GUIs (graphical user interfaces), the medical worker can intuitively view the information content displayed on the display unit 3. It is possible to make a screen in the display unit 3 that can be operated manually.

<Another embodiment of the present invention>
FIG. 8 shows another embodiment of the color display circuit of the present invention.
Although outside the scope of the present invention, in a conventional peritoneal dialysis device, in particular, in a color display circuit on a display screen for performing operation guidance, color information capable of color display is added to the display data memory. If this is done, the memory size will increase, and this display data memory will have 8 bits allocated to each of R (red), G (green), and B (blue), and a capacity of 8 bits × 3 = 24 bits is required. is there. For this reason, the display data memory becomes expensive and the operation speed decreases. For example, a total of three memory means of two flash memories and one CF card are used.
In the conventional peritoneal dialysis apparatus, in particular, in the color display circuit on the display screen for performing the operation guide, since all processing is performed by the CPU, the use of a high-performance CPU is required. In particular, since the current consumption of the CPU increases in proportion to the performance, it is difficult to adopt a high-performance CPU when it is necessary to suppress the current consumption.

On the other hand, the color display circuit 100A shown in FIG. 8, which is another embodiment of the present invention, provides an operation guide particularly in the display unit 3A applied to a peritoneal dialysis apparatus which is another example of a medical device. This is a circuit for performing color display on the display screen.
The color display circuit 100A includes a CPU (central processing unit) 101A, a CPU memory 102A, a color display processing unit 300A, a single display data memory 111, and a frame memory 112. The CPU 101A is a general-purpose CPU. The color display processing unit 300A is additionally arranged and electrically connected to the CPU 101A, and is a custom IC (hardware) such as a gate array or FPGA (an integrated circuit whose configuration can be set after purchase). The display unit 3A is electrically connected to the color display processing unit 300A.

The color display circuit 100A shown in FIG. 8 is structurally the same as that described in FIG. The display data memory 111 is electrically connected to the color display processing unit 300A and stores display data D2 for displaying a background screen to be displayed on the display unit 3A. As the display data memory 111, a background screen and character data are stored using, for example, a FLASH memory (nonvolatile semiconductor memory) having a storage capacity of 64 Mbit × 2.

The display data memory 111 may store a background screen and character data using a flash memory type memory card such as a CF card (compact flash) (registered trademark) having a storage capacity of 256 Mbits, for example. .
The frame memory 112A is electrically connected to the color display processing unit 300A and employs a DRAM having a storage capacity of, for example, 256 Mbit × 2 for storing display data (LCD display data) of the display unit 3A.

Also in the embodiment of the present invention shown in FIG. 8, the screen processing displayed on the display unit 3A is handled not by the CPU 101A but by the color display processing unit 300A, which is hardware, so that the CPU 101A is released from the image processing work. Therefore, a low performance CPU can be adopted. Moreover, since the color display processing unit 300A, which is hardware, is good at high-speed processing and parallel processing of display data, it is possible to improve the speed of image processing in the display unit 3A. For example, a moving image display of about 20 fps to 60 fps is also possible. It becomes possible. Also in the embodiment of the present invention shown in FIG. 8, functions and effects similar to those in the embodiment shown in FIG. 3 can be exhibited.

In the embodiment of the present invention, screen data including information content can be quickly displayed in color on the display unit 3 which is a liquid crystal display device, and the manufacturing cost can be reduced. That is, the display processing of the screen data including the information content displayed on the display unit 3 is not performed by the central processing unit (CPU 101) but is handled by the color display processing unit 300 which is hardware. Since the color display processing unit 300 is good at high-speed processing and parallel processing of display data, the display speed of screen data including information content in the display unit 3 can be improved. Moreover, since the central processing unit is freed from the image processing work of screen data including information content, it is not necessary to use a high-performance and expensive central processing unit, and a low-performance and inexpensive central processing unit can be adopted. Cost can be reduced.

By the way, the present invention is not limited to the above-described embodiments, and various modifications and changes can be made to the present invention, and various modifications can be made within the scope described in the claims.
In the embodiment of the present invention, a syringe pump is given as an example of a medical pump of a medical device as shown in FIGS. 1 and 2, but the present invention sequentially presses, for example, an infusion tube in addition to the illustrated syringe pump. Thus, the present invention can be applied to an infusion pump for continuously feeding a drug solution passing through the infusion tube to the patient side.

DESCRIPTION OF SYMBOLS 1 ... Syringe pump, 2 ... Main body cover, 3 ... Display part, 4 ... Operation panel part, 100 ... Color display circuit of liquid crystal display, 101 ... CPU (central processing unit) ), 102... CPU memory (display screen configuration information memory), 111... Display data memory, 112... Frame memory, 300... Color display processing unit, 309. ..Display screen configuration information, D2 ... display data, D3 ... screen data, CL ... color information

Claims

A liquid crystal display color display circuit for color display on a liquid crystal display device provided in a device,
A central processing unit;
A display data memory for storing display data;
Based on the display screen configuration information supplied to the central processing unit, the display data is fetched from the display data memory to add color information to the display data, and from the display data to the screen of the liquid crystal display device A color display processing unit for assembling screen data including information content for display;
A frame memory for storing the screen data assembled by adding the color information;
A circuit for color display of a liquid crystal display, comprising:
The color display circuit for liquid crystal display according to claim 1, wherein the color display processing unit includes a color instruction unit for adding the color information to the display data.
3. The liquid crystal display according to claim 1, wherein the color display processing unit fetches the screen data from the frame memory and supplies the screen data to the liquid crystal display device to display the screen data in color. Color display circuit.
4. The liquid crystal display according to claim 1, further comprising a display screen configuration information memory for storing the display screen configuration information and supplying the display screen configuration information to the central processing unit. Color display circuit.
5. The color display circuit for a liquid crystal display according to claim 1, wherein the device is a medical device.
6. The liquid crystal display color display circuit according to claim 5, wherein the medical device is a medical pump for supplying a medicine to a patient.
The color display circuit for liquid crystal display according to claim 5, wherein the medical device is a peritoneal dialysis device.
The color display circuit for a liquid crystal display according to any one of claims 5 to 7, wherein the display on the display screen of the medical device is configured to specially perform color display only on a portion requiring attention from a medical worker or a user. .