CN219499582U - Operating light calibration device and operating light structure - Google Patents

Operating light calibration device and operating light structure Download PDF

Info

Publication number
CN219499582U
CN219499582U CN202320651599.XU CN202320651599U CN219499582U CN 219499582 U CN219499582 U CN 219499582U CN 202320651599 U CN202320651599 U CN 202320651599U CN 219499582 U CN219499582 U CN 219499582U
Authority
CN
China
Prior art keywords
module
lamp
electrically connected
main control
coefficient
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202320651599.XU
Other languages
Chinese (zh)
Inventor
王智琼
陈垠仰
周寅昌
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Comen Medical Instruments Co Ltd
Original Assignee
Shenzhen Comen Medical Instruments Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shenzhen Comen Medical Instruments Co Ltd filed Critical Shenzhen Comen Medical Instruments Co Ltd
Priority to CN202320651599.XU priority Critical patent/CN219499582U/en
Application granted granted Critical
Publication of CN219499582U publication Critical patent/CN219499582U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/40Control techniques providing energy savings, e.g. smart controller or presence detection

Landscapes

  • Circuit Arrangement For Electric Light Sources In General (AREA)

Abstract

The utility model provides an optical calibration device and an operating lamp structure of an operating lamp. Therefore, the touch operation of the touch screen input module is directly performed, a plurality of current coefficients are adjusted in one interface, each parameter value is not required to be input by successive manual key-press, and the calibration efficiency is effectively improved. Meanwhile, as the display screen can display the current coefficient of the initial state value of the operating lamp, operators can more easily determine the current coefficient to be adjusted through visual comparison among the current coefficients, so that the calibration stability and the calibration precision are improved.

Description

Operating light calibration device and operating light structure
Technical Field
The utility model relates to the technical field of operating room illumination, in particular to an operating light calibration device and an operating light structure.
Background
Most of the existing operating lamps need to be regulated by a computer when the whole machine optical illuminance value test is in a non-standard range before shipment, so that each parameter corresponds to an optical scheme LED string of a group of operating lamps, namely, one parameter is input to regulate the current value of the corresponding LED string, and therefore the illuminance value of the whole machine is changed.
Usually, a relatively complex high-end operating lamp has dozens or tens of parameter channels to be adjusted, if a conventional manner is used, one parameter corresponds to an associated LED string in a group of optical schemes, the illuminance value of one gear state of the whole machine needs to be adjusted, and the time spent for adjusting the parameters is dozens or more minutes or even longer. Moreover, each parameter is manually input to adjust the parameter, so that the operator does not know the change amplitude of each parameter, and the increase or decrease amplitude of the illumination of the whole machine can be caused to be in a reasonable range, namely the problems of poor calibration stability and low calibration efficiency exist.
Accordingly, the prior art is in need of improvement.
Disclosure of Invention
The utility model mainly aims to provide a surgical lamp light calibrating device and a surgical lamp structure, which at least solve the technical problem of low calibrating efficiency of a surgical lamp in the related art.
The utility model provides an optical calibration device for an operating lamp, which comprises a serial port module, a main control MCU module, a man-machine interaction interface driving module, a display screen module and a touch screen input module;
the touch screen input module and the display screen module are electrically connected with the man-machine interaction interface driving module, the man-machine interaction interface driving module is electrically connected with the main control MCU module, the main control MCU module is electrically connected with the serial port module, and the serial port module is used for being electrically connected with the operating lamp;
wherein the serial port module is used for obtaining the current coefficient corresponding to the initial state value of the operating lamp,
the display screen module is used for displaying the current coefficient, the touch screen input module is used for receiving a coefficient adjusting signal input by a user, the human-computer interaction interface driving module is used for converting the coefficient adjusting signal into a coefficient calibration signal, and the main control MCU module is used for transmitting the coefficient calibration signal to the operating lamp through the serial port module to perform optical calibration.
In a second aspect of the present utility model, there is also provided a surgical lamp structure comprising a surgical lamp and the surgical lamp light calibration device according to the first aspect.
The surgical light calibration device and the surgical light structure comprise a serial port module, a main control MCU module, a human-computer interaction interface driving module, a display screen module and a touch screen input module, wherein the touch screen input module and the display screen module are electrically connected with the human-computer interaction interface driving module, the human-computer interaction interface driving module is electrically connected with the main control MCU module, the main control MCU module is electrically connected with the serial port module, and the serial port module is electrically connected with the surgical light. When the operating lamp optical calibration device is used for calibrating the operating lamp, the serial port module obtains the current coefficient corresponding to the initial state value of the operating lamp, the display screen module displays the current coefficient, the touch screen input module receives the coefficient adjusting signal input by a user, the man-machine interaction interface driving module converts the coefficient adjusting signal into a coefficient calibration signal, and the main control MCU module transmits the coefficient calibration signal to the operating lamp through the serial port module for optical calibration. In the whole calibration process, an operator can directly perform increasing adjustment or reducing adjustment on a plurality of current coefficients of the operating lamp in one interface through touch operation of the touch screen input module, each parameter value is not required to be input by successive manual keys, and the calibration efficiency is effectively improved. Meanwhile, as the display screen can display the current coefficients corresponding to the initial state values of the operating lamp, an operator can more easily analyze the coefficients to be calibrated and the adjustment amplitude to determine the final coefficient adjustment signals through the comparison among the current coefficients, so that the stability and the accuracy of the calibration are improved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram showing the module connection of an optical calibration device of an operating lamp according to an embodiment of the present application;
FIG. 2 is a schematic circuit connection diagram of a serial port module according to an embodiment of the present disclosure;
FIG. 3 is a schematic diagram of circuit connection of a master MCU module according to an embodiment of the present application;
FIG. 4 is a schematic circuit diagram of a driving module of a man-machine interaction interface according to an embodiment of the present application;
FIG. 5 is a schematic circuit diagram of a signal input circuit of a display screen according to an embodiment of the present application;
FIG. 6 is a schematic diagram of circuit connection of a touch signal input circuit according to an embodiment of the present application;
FIG. 7 is a schematic diagram of a parameter adjustment interface displayed by a display module according to an embodiment of the present application;
FIG. 8 is a schematic diagram of module connection of an optical calibration device of an operating lamp according to an embodiment of the present application;
FIG. 9 is a schematic diagram of circuit connection of DAC output modules according to an embodiment of the present application;
FIG. 10 is a schematic diagram of circuit connection of an LED driving module according to an embodiment of the present application;
fig. 11 is a schematic diagram illustrating a logic diagram for adjusting the overall illumination of the operating lamp according to an embodiment of the present application.
The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
It is noted that related terms such as "first," "second," and the like may be used to describe various components, but these terms are not limiting of the components. These terms are only used to distinguish one element from another element. For example, a first component could be termed a second component, and, similarly, a second component could be termed a first component, without departing from the scope of the present utility model. The term "and/or" refers to any one or more combinations of related items and descriptive items.
Referring to fig. 1, the optical calibration device for an operating lamp provided by the embodiment of the utility model specifically includes a serial port module 10, a main control MCU module 20, a man-machine interaction interface driving module 30, a display screen module 40 and a touch screen input module 50.
Specifically, the first end of the serial port module 10 is electrically connected to the operating lamp, the second end of the serial port module 10 is electrically connected to the first end of the main control MCU module 20, the second end of the main control MCU module 20 is electrically connected to the first end of the man-machine interface driving module 30, and the second end and the third end of the man-machine interface driving module 30 are electrically connected to the display screen module 40 and the touch screen input module 50, respectively. Namely, the above modules form the following connection relationship: the touch screen input module 50 and the display screen module 40 are electrically connected with the man-machine interaction interface driving module 30, the man-machine interaction interface driving module 30 is electrically connected with the main control MCU module 20, and the main control MCU module 20 is electrically connected with the serial port module 10.
When the operation lamp to be calibrated is optically calibrated, the operation lamp is pulled out from the power line/serial port communication line of the man-machine interaction equipment, and then the serial port module 10 of the operation lamp optical calibration device is plugged into the operation lamp, so that an information communication bridge between the operation lamp and the operation lamp optical calibration device is established. Further, the serial port module is used for obtaining a current coefficient corresponding to an initial state value of the operating lamp, the display screen module is used for displaying the current coefficient, the touch screen input module is used for receiving a coefficient adjusting signal input by a user, the human-computer interaction interface driving module is used for converting the coefficient adjusting signal into a coefficient calibration signal, and the main control MCU module is used for transmitting the coefficient calibration signal to the operating lamp through the serial port module for optical calibration. The coefficient adjusting signal is a signal (such as a control signal for increasing a coefficient and a control signal for reducing a coefficient) input by a user on the touch screen input module, the coefficient calibration signal is a signal (a specific parameter setting signal) obtained after the human-computer interaction interface driving module processes the coefficient adjusting signal, and the initial state value comprises one or a combination of more than two of light spots, color temperature and brightness.
Therefore, in the whole calibration process, an operator can directly perform increasing adjustment or reducing adjustment on a plurality of current coefficients of the operating lamp in one interface through touch operation of the touch screen input module, each parameter value is not required to be input manually successively, and the calibration efficiency is effectively improved. Meanwhile, as the display screen can display the current coefficients corresponding to the initial state values of the operating lamp, an operator can more easily analyze the coefficients to be calibrated and the adjustment amplitude to determine the final coefficient adjustment signals through the comparison among the current coefficients, so that the stability and the accuracy of the calibration are improved. In addition, due to the arrangement of the serial port module, the connection mode of the serial port module and the operating lamp is plug-in type, and the operation is particularly simple and convenient.
It should be noted that, in this embodiment, the circuit connection relationship between the modules is mainly protected, and after the circuit connection is established, the functions of the modules naturally form, so that calibration of the operating lamp can be simply and conveniently implemented, and the calibration efficiency is improved.
Specific functions and circuits of the serial port module 10, the main control MCU module 20, the man-machine interaction interface driving module 30, the display screen module 40 and the touch screen input module 50 in the optical calibration device of the operating lamp are described below:
the serial port module 10 may be an SP3232 serial communication conversion module, wherein a UART communication mode (refer to fig. 2) is connected between a first end of the SP3232 serial communication conversion module and the main control MCU module, and an RS232 communication mode is connected between a second end of the SP3232 serial communication conversion module and the lamp panel driving MCU module, so as to implement an input and output function of data (current coefficient corresponding to an initial state value of the operating lamp). The SP3232 serial communication conversion module is a serial interface, which is an expansion interface adopting a serial communication mode, and can sequentially transmit data bit by bit. The communication line is simple, and two-way communication can be realized by only a pair of transmission lines (telephone lines can be directly used as the transmission lines), so that the cost is greatly reduced.
The main control MCU module 20 may be a main control chip with an information processing function, for example, a chip with a model SWM32F446VET6, which also belongs to a single-chip microcomputer (Single Chip Microcomputer) or a single-chip microcomputer, and through a plurality of input pins and output pins (refer to fig. 3) configured by the main control MCU module, on one hand, a current coefficient corresponding to an initial state value of an operating lamp transmitted from a serial port module may be transmitted to the man-machine interaction interface driving module 30; alternatively, the coefficient calibration signal transmitted from the man-machine interface driving module 30 may be transmitted to the serial port module. Optionally, the main control MCU module 20 may be further externally connected with a reset circuit, an external nor_flash module, and a power module.
The human-machine interface driver module 30 may be an LCD display screen driver module (see figure 4),
the LCD display screen driving module is used for processing the current coefficient corresponding to the initial state value of the operating lamp transmitted from the main control MCU module to obtain a display signal in a preset format, and transmitting the display signal to the display screen module to display the current coefficient; the preset format comprises HDMI format, DVI-I format, DVI-D format or DP format. Namely, the LCD display screen driving module has the functions of: on one hand, processing the current coefficient corresponding to the initial state value of the operating lamp transmitted from the main control MCU module to obtain a display signal in a preset format; on the other hand, the LCD display screen driving module converts the coefficient adjustment signal generated from the touch screen input module 50 into a coefficient calibration signal and transmits it to the main control MCU module.
The display screen module 40 is a device with a display function, and is mainly used for displaying the current coefficients corresponding to the initial state values of the operating lamps in the HDMI format, the DVI-I format, the DVI-D format or the DP format transmitted by the man-machine interaction interface driving module 30, so that an operator can intuitively see all the current coefficients from the display screen module, and the target coefficients to be adjusted can be conveniently analyzed from the current coefficients. Optionally, a display signal input circuit (see fig. 5) configured with a connector J1 is disposed between the display module 40 and the LCD display driving module, so that a display signal in a preset format is stably transmitted to the display module 40 through the display signal input circuit and the connector J1.
The touch panel input module 50 is a device capable of acquiring a touch instruction from a user, and is a touch panel, for example. The method mainly senses a touch instruction of a user, namely receives a coefficient adjusting signal input by the user. The coefficient adjustment signal may be a signal that decreases the coefficient or a signal that increases the coefficient. Optionally, a touch signal input circuit (see fig. 6) configured with a connector J2 is disposed between the touch screen input module 50 and the LCD display screen driving module, so that the coefficient adjustment signal inputted by the user is stably transmitted to the LCD display screen driving module.
In an alternative implementation manner of this embodiment, the display screen module 40 and the touch screen input module 50 may be in an integrated structure, referring to fig. 7, the display screen module 40 displays a parameter adjustment interface diagram under ordinary illumination, where the interface includes an automatic identification display of the operating lamp model, a display of the calibration current functional mode, a display of the light spot/color temperature/brightness status value, and a real-time display of the current scaling factor value. The display content of the light spot/color temperature/brightness state value comprises a current ML brightness state and a current SW color temperature state, and the current GB light spot state can be switched by a-/+ functional box before and after the state value. In the actual optical calibration, when the current illuminance value differs from the expected target illuminance value by a large extent, the rough adjustment of the scaling factor can be performed first, and the rough adjustment is performed after the current illuminance value approaches the target illuminance value. After the target scaling coefficient value is manually adjusted (namely, the illuminance value of the whole machine accords with the state of the parameter standard), the SV is clicked for storage, the coefficient value is issued to the driving board MCU, and after the driving board MCU receives the target coefficient value, the target coefficient value is multiplied by each current optical parameter value to serve as the final target state value of each optical parameter value for storage and replacement of the state value before calibration. Therefore, the scaling of the same proportion of each working parameter value is achieved, and the uniformity of the overall brightness harmony of the lamp panel and the brightness of the lamp panel light source is realized, and the uniformity of the changing proportion of the LED driving output current of each working path is realized.
Referring to fig. 8, the optical calibration device for an operating lamp may further include a lamp panel driving MCU module, a DAC output module (see fig. 9 for specific circuits), and an LED driving module (see fig. 10 for specific circuits), where the operating lamp includes an LED lamp set. The main control MCU module is electrically connected with the lamp panel driving MCU module, the lamp panel driving MCU module is electrically connected with the DAC output module and the LED driving module respectively, the DAC output module is electrically connected with the LED driving module, and the LED driving module is electrically connected with the LED lamp group. When the LED lamp bank is implemented, the lamp panel driving MCU module is used for transmitting the coefficient calibration signal output from the serial port module to the DAC output module, the DAC output module is used for converting the coefficient calibration signal into an analog dimming voltage value and transmitting the analog dimming voltage value to an analog dimming control pin of the LED driving module, and the LED driving module is used for controlling the brightness of the LED lamp bank according to the analog dimming voltage value.
The LED driving modules are at least two in number, the LED lamp groups are at least two in number, and each LED driving module is electrically connected with a corresponding LED lamp group. And after the corresponding LED driving modules respectively receive the dimming input signals transmitted by the driving board MCU after being adjusted by the calibration tool, the corresponding LED driving modules correspondingly adjust the LED driving output current value, the fluorescent powder of the LED chip is excited by the current to generate light intensity, the quantity of the fluorescent powder is excited by the adjusted current intensity to control the light intensity of the LED strings of each group of LED lamp groups of the optical scheme, namely, the light intensity of all the LED strings is changed, so that the adjustment of the integral illumination of the operating lamp is realized.
Referring to fig. 11, assume that the operating lamp has five parameter bits M1-M5, the parameter bits are set by the driver board MCU software to perform association of corresponding LED driving modules, the associated LED driving modules may be controlled to be 1 by a state value in the corresponding parameter bits M, after adjusting the scaling coefficient to the target coefficient Z by the calibration tool, the target coefficient Z is automatically multiplied by the initial state value to obtain a target parameter value F-J, the driver board MCU automatically converts the target parameter value F-J into a target dimming signal, the target dimming signal is input to the corresponding LED driving, and the LED driving output obtains a corresponding calibrated target current value. The adjustment of the size of the target current value is converted into the adjustment of the intensity of the light intensity of the LED lamp bead string. After the light intensity of all the LED strings is regulated to reach a target state, the whole illumination value of the lamp panel is regulated, namely the target illumination state value of the whole lamp panel is reached.
According to the operation lamp calibration device and the operation lamp structure, in the whole calibration process, an operator can directly perform increasing adjustment or reducing adjustment on a plurality of current coefficients of the operation lamp in one interface through the touch operation of the touch screen input module, each parameter value is not required to be input in a successive manual button mode, scaling coefficients of all initial parameter values can be adjusted by one button, and the working efficiency of one-position and one-position adjustment parameter mode relative to the traditional optical calibration parameters is greatly improved. Meanwhile, as the display screen can display the current coefficients corresponding to the initial state values of the operating lamp, an operator can more easily analyze the coefficients to be calibrated and the adjustment amplitude to determine the final coefficient adjustment signals through the comparison among the current coefficients, so that the stability and the accuracy of the calibration are improved. And the occurrence of too large randomness of manually adjusting each parameter is avoided, so that the occurrence of incompatibility after the whole brightness of the whole LED lamp panel is calibrated is avoided, the occurrence of non-uniformity of brightness release of a lamp panel light source is avoided, and the risk that an LED driving chip is damaged due to the fact that an extreme current appears in a certain path of LED driving output current due to unreasonable manual input parameters is avoided.
In the foregoing embodiments, the descriptions of the embodiments are emphasized, and for parts of one embodiment that are not described in detail, reference may be made to the related descriptions of other embodiments.
The foregoing description is only of the preferred embodiments of the present utility model, and is not intended to limit the scope of the utility model, but rather is intended to cover any equivalents of the structures or equivalent processes disclosed herein or in the alternative, which may be employed directly or indirectly in other related arts.

Claims (10)

1. The operating lamp optical calibration device is characterized by comprising a serial port module, a main control MCU module, a man-machine interaction interface driving module, a display screen module and a touch screen input module;
the touch screen input module and the display screen module are electrically connected with the man-machine interaction interface driving module, the man-machine interaction interface driving module is electrically connected with the main control MCU module, the main control MCU module is electrically connected with the serial port module, and the serial port module is used for being electrically connected with the operating lamp;
wherein the serial port module is used for obtaining the current coefficient corresponding to the initial state value of the operating lamp,
the display screen module is used for displaying the current coefficient, the touch screen input module is used for receiving a coefficient adjusting signal input by a user, the human-computer interaction interface driving module is used for converting the coefficient adjusting signal into a coefficient calibration signal, and the main control MCU module is used for transmitting the coefficient calibration signal to the operating lamp through the serial port module to perform optical calibration.
2. The surgical lamp optical calibration device of claim 1 further comprising a lamp panel drive MCU module, a DAC output module, and an LED drive module, the surgical lamp comprising an LED light bank;
the main control MCU module is electrically connected with the lamp panel driving MCU module, the lamp panel driving MCU module is respectively electrically connected with the DAC output module and the LED driving module, the DAC output module is electrically connected with the LED driving module, and the LED driving module is electrically connected with the LED lamp group;
the lamp panel driving MCU module is used for transmitting the coefficient calibration signal output by the serial port module to the DAC output module, the DAC output module is used for converting the coefficient calibration signal into an analog dimming voltage value and transmitting the analog dimming voltage value to an analog dimming control pin of the LED driving module, and the LED driving module is used for controlling the brightness of the LED lamp group according to the analog dimming voltage value.
3. The surgical light calibration device of claim 2, wherein the number of LED driver modules is at least two, the number of LED light groups is at least two, and each LED driver module is electrically connected to a corresponding one of the LED light groups.
4. The surgical light calibration apparatus of claim 2, wherein the surgical light optical calibration apparatus further comprises a buzzer alert circuit;
the buzzer prompt circuit is electrically connected with the main control MCU module and is used for outputting a prompt signal when the main control MCU module is in an abnormal state.
5. The surgical light calibration device of claim 2, wherein the human-machine interaction interface drive module comprises an LCD display screen drive module;
the LCD display screen driving module is used for processing the current coefficient corresponding to the initial state value of the operating lamp transmitted from the main control MCU module to obtain a display signal in a preset format, and transmitting the display signal to the display screen module to display the current coefficient;
wherein the preset format comprises HDMI format, DVI-I format, DVI-D format or DP format.
6. The surgical light calibration device of claim 2, wherein the serial port module comprises an SP3232 serial communication conversion module;
the connection between the first end of the SP3232 serial communication conversion module and the main control MCU module is in a UART communication mode, and the connection between the second end of the SP3232 serial communication conversion module and the lamp panel driving MCU module is in an RS232 communication mode.
7. The surgical lamp optical calibration device of claim 1 further comprising a reset circuit;
the reset circuit is electrically connected with the main control MCU module.
8. The surgical lamp optical calibration device of claim 1 further comprising an external NOR FLASH module;
and the external NOR_FLASH module is electrically connected with the main control MCU module.
9. The surgical lamp optical calibration device of claim 1 further comprising a power module;
the first output end and the second output end of the power supply module are respectively and electrically connected with the main control MCU module and the man-machine interaction interface driving module.
10. A surgical lamp structure comprising a surgical lamp and an optical calibration device according to any one of claims 1 to 9.
CN202320651599.XU 2023-03-22 2023-03-22 Operating light calibration device and operating light structure Active CN219499582U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202320651599.XU CN219499582U (en) 2023-03-22 2023-03-22 Operating light calibration device and operating light structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202320651599.XU CN219499582U (en) 2023-03-22 2023-03-22 Operating light calibration device and operating light structure

Publications (1)

Publication Number Publication Date
CN219499582U true CN219499582U (en) 2023-08-08

Family

ID=87509705

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202320651599.XU Active CN219499582U (en) 2023-03-22 2023-03-22 Operating light calibration device and operating light structure

Country Status (1)

Country Link
CN (1) CN219499582U (en)

Similar Documents

Publication Publication Date Title
CN100573642C (en) The LED control circuit
CN101399032B (en) Display apparatus with brightness and color temperature control system and brightness and colour temperature control method
CN101917800B (en) A kind of LED controller
CN201403234Y (en) Interface integrated circuit used for LED backlight system and backlight system thereof
CN1680999A (en) Brightness control system
CN101604516A (en) Display device, the Control Component that is used for this display device and control method
CN102081908A (en) Method and circuit for lowering power consumption of liquid crystal display
CN1397872A (en) Portable computer system and its control method
CN103366657A (en) Flicker regulating system
CN101437340B (en) Automatic calibration instrument and calibration method for RGB chatoyancy LED lamp
CN105528976A (en) Device and method for automatically measuring and calibrating gamma curve of display screen
CN106328088A (en) Driving circuit, driving method and semi-reflecting and semi-transmitting liquid crystal display
CN111681615A (en) Backlight control circuit and backlight control method
CN102651193B (en) LED (Light Emitting Diode) display driver and display device
CN219499582U (en) Operating light calibration device and operating light structure
CN106531065B (en) A kind of parallel regulating system of one-to-many gamma curve and method
CN105636265B (en) A kind of New LED classroom lamp
CN109949726B (en) Automatic white balance debugging system and method for LED display screen module
US8106878B2 (en) Backlight modulation circuit and method thereof
CN108180416A (en) One kind absorbs chromaticity coordinates and exports corresponding chromaticity coordinates height automatically shows finger light-source system
CN101477791B (en) LCD display device, maintenance system and method thereof
CN101576651A (en) Stereo microscope LED lighting and lens focusing control system
CN105551410A (en) Device and method for automatic determination of white balance adjustment resistor of LED display screen
CN102184666B (en) Method of digital voltage-regulating power supply in teaching experiments of modern middle and primary schools
CN216752159U (en) Backlight adjusting system

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant