WO2023065398A1 - 显示供电模块及显示装置 - Google Patents

显示供电模块及显示装置 Download PDF

Info

Publication number
WO2023065398A1
WO2023065398A1 PCT/CN2021/128109 CN2021128109W WO2023065398A1 WO 2023065398 A1 WO2023065398 A1 WO 2023065398A1 CN 2021128109 W CN2021128109 W CN 2021128109W WO 2023065398 A1 WO2023065398 A1 WO 2023065398A1
Authority
WO
WIPO (PCT)
Prior art keywords
power supply
signal
electrically connected
load
display
Prior art date
Application number
PCT/CN2021/128109
Other languages
English (en)
French (fr)
Inventor
李文芳
Original Assignee
Tcl华星光电技术有限公司
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 Tcl华星光电技术有限公司 filed Critical Tcl华星光电技术有限公司
Priority to US17/615,086 priority Critical patent/US20240029620A1/en
Publication of WO2023065398A1 publication Critical patent/WO2023065398A1/zh

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of dc power input into dc power output
    • H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
    • H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
    • H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M3/156—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
    • H02M3/158—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load
    • H02M3/1584—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load with a plurality of power processing stages connected in parallel
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/2092—Details of a display terminals using a flat panel, the details relating to the control arrangement of the display terminal and to the interfaces thereto
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of dc power input into dc power output
    • H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
    • H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
    • H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M3/156—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
    • H02M3/158—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/0003—Details of control, feedback or regulation circuits
    • H02M1/0032—Control circuits allowing low power mode operation, e.g. in standby mode
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/08—Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters
    • H02M1/088—Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters for the simultaneous control of series or parallel connected semiconductor devices
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00—Command of the display device
    • G09G2310/08—Details of timing specific for flat panels, other than clock recovery
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
    • G09G2330/02—Details of power systems and of start or stop of display operation
    • G09G2330/021—Power management, e.g. power saving
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G09G3/3611—Control of matrices with row and column drivers
    • G09G3/3696—Generation of voltages supplied to electrode drivers
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of dc power input into dc power output
    • H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
    • H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
    • H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M3/156—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators

Definitions

  • the invention relates to the field of display technology, in particular to a display power supply module and a display device.
  • the resolution of display devices is getting higher and higher. As the resolution gets higher, the currents of different control loops also increase. Correspondingly, the operating temperature of integrated circuits in different loops is also getting higher and higher, and the specifications of peripheral devices are also increased accordingly.
  • the load level can be determined according to the content of the display screen.
  • the circuit operation mode has not been adaptively changed in response to different load levels. The efficiency is low and needs to be improved.
  • the invention provides a display power supply module and a display device for improving the efficiency of integrated circuits of the display device in the prior art.
  • a first aspect of the present invention provides a display power supply module, including: a timing controller configured to generate a load signal according to a picture signal; a power supply electrically connected to the timing controller , the power supply is configured to have a plurality of power supply channels, and at least one power supply channel in the plurality of power supply channels is opened according to the load signal for transmitting electrical signals; and an integrated circuit is electrically connected to the power supply channels
  • the integrated circuit is configured to generate an analog positive power supply according to the electrical signal transmitted by the at least one opened power supply channel; wherein the power supply transmits at least one analog positive power supply according to the load signal a pulse width modulation signal to the at least one power supply channel that is turned on; and the integrated circuit includes a plurality of signal processing parts, each signal processing part in the plurality of signal processing parts is electrically connected to the plurality of power supply channels Between a power supply channel in the channels and a power output port, the power output port outputs the analog positive power
  • the power supply includes a controller, the controller generates the at least one pulse width modulation signal according to the load signal, and transmits the at least one pulse width modulation signal to the At least one power supply channel is turned on.
  • the plurality of power supply channels are two power supply channels.
  • the timing controller judges whether a current frame is a heavy load frame according to the frame signal, if the judgment is yes, the load signal is a high level signal, if the judgment is no, The load signal is a low level signal.
  • the power supply turns on the two power supply channels in response to the load signal being the high-level signal; and the power supply responds to the load signal as the A low level signal is used to turn on one of the two power supply channels.
  • the signal processing unit includes a switch element, an inductor, a resistor, a rectifier element, and a capacitor
  • the switch element is electrically connected to the power supply channel
  • the resistor is electrically connected to Between the switch element and a ground terminal
  • the inductor is electrically connected between the switch element and a positive terminal
  • one end of the rectifier element is electrically connected to the switch element and the inductor
  • the The other end of the rectifying element is electrically connected to the power output port
  • the capacitor is electrically connected between the power output port and the ground end.
  • the power supply is configured as a boost integrated circuit.
  • a second aspect of the present invention provides a display power supply module, including: a timing controller configured to generate a load signal according to a picture signal; a power supply electrically connected to the timing controller , the power supply is configured to have a plurality of power supply channels, and at least one power supply channel in the plurality of power supply channels is opened according to the load signal for transmitting electrical signals; and an integrated circuit is electrically connected to the power supply channels For the plurality of power supply channels of the supplier, the integrated circuit is configured to generate an analog positive power supply according to the electrical signal transmitted by the at least one power supply channel that is turned on.
  • the power supplier transmits at least one pulse width modulation signal to the at least one opened power supply channel according to the load signal.
  • the power supply includes a controller, the controller generates the at least one pulse width modulation signal according to the load signal, and transmits the at least one pulse width modulation signal to the At least one power supply channel is turned on.
  • the plurality of power supply channels are two power supply channels.
  • the timing controller judges whether a current frame is a heavy load frame according to the frame signal, if the judgment is yes, the load signal is a high level signal, if the judgment is no, The load signal is a low level signal.
  • the power supply turns on the two power supply channels in response to the load signal being the high-level signal; and the power supply responds to the load signal as the A low level signal is used to turn on one of the two power supply channels.
  • the integrated circuit includes a plurality of signal processing units, and each signal processing unit in the plurality of signal processing units is electrically connected to one power supply channel in the plurality of power supply channels and a power supply Between the output ports, the power output port outputs the analog positive power.
  • the signal processing unit includes a switch element, an inductor, a resistor, a rectifier element, and a capacitor
  • the switch element is electrically connected to the power supply channel
  • the resistor is electrically connected to Between the switch element and a ground terminal
  • the inductor is electrically connected between the switch element and a positive terminal
  • one end of the rectifier element is electrically connected to the switch element and the inductor
  • the The other end of the rectifying element is electrically connected to the power output port
  • the capacitor is electrically connected between the power output port and the ground end.
  • the power supply is configured as a boost integrated circuit.
  • a third aspect of the present invention provides a display device, including the above-mentioned display power supply module.
  • the load signal is generated by the timing controller according to the picture signal; the power supply device opens at least one power supply channel among the plurality of power supply channels according to the load signal , for transmitting an electrical signal; and the integrated circuit generates the analog positive power supply according to the electrical signal transmitted by the at least one opened power supply channel. Therefore, more power supply channels are opened on the heavy load screen to transmit electrical signals, and less power supply channels are opened to transmit electrical signals on the light load screen.
  • the number of electrical signals of the analog positive power supply is different in the heavy load screen or the light load screen. In the case of a light-load screen, only one power supply channel is turned on, which can greatly reduce the heat energy generated by the transmission of electrical signals. In addition to reducing the temperature of the peripheral devices of the power supply, it can also improve the circuit working efficiency in the case of a light-load screen.
  • FIG. 1 is a schematic circuit diagram of a display power supply module according to an embodiment of the present invention
  • Fig. 2 is a schematic diagram of the signal of opening two power supply channels when the screen is overloaded according to the embodiment of the present invention
  • FIG. 3 is a schematic diagram of a signal for turning on a single power supply channel when the screen is lightly loaded according to an embodiment of the present invention
  • FIG. 4 is a schematic circuit diagram of a display power supply module shown as a comparative example.
  • first and second are used for description purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as “first” or “second” may explicitly or implicitly include one or more of said features.
  • “plurality” means two or more, unless otherwise specifically defined.
  • liquid crystal display device it is possible to determine the degree of load based on the content of the display screen. Examples are as follows, but not limited thereto.
  • a first aspect of the present invention provides a display power supply module.
  • the display power supply module is applicable to a high-resolution liquid crystal display device, such as an 8K resolution liquid crystal display device, but not limited thereto.
  • the display power supply module includes: a timing controller 1, a power supply 2 and an integrated circuit 3, the timing controller 1 is electrically connected to the power supply 2, the power supply 2 is electrically connected to the integrated circuit 3 for outputting DC power in response to display screens with different load levels, which can be supplied to the internal circuits of the liquid crystal display device for operation.
  • the timing controller 1 may be configured to generate a load signal A according to a frame signal.
  • the timing controller 1 can receive picture signals detected by other detection devices (such as embedded system-on-chip) to know the load level of the current picture.
  • the pure color or grayscale picture has relatively simple content and can be regarded as a light load picture.
  • the timing controller 1 can generate the load signal A according to the picture signal to indicate different load levels of the display picture.
  • the load level may be, for example, two or more, and correspondingly, the number of the plurality of power supply channels H may also be, for example, two or more, and the load signal A may be, for example, It is configured as a signal with multiple changes of a single feature (such as multiple levels or multiple pulse widths, etc.) or a combination of multiple features, so as to be identified with multiple load levels.
  • the power supply 2 is electrically connected to the timing controller 1, the power supply 2 can be configured to have a plurality of power supply channels H, and the multiple power supply channels H are turned on according to the load signal A At least one power supply channel H in the channels H is used for transmitting electrical signals.
  • the power supply 2 can transmit at least one pulse width modulation signal to the at least one power supply channel H that is turned on according to the load signal A
  • the power supply 2 includes a controller 21, the controller 21 can generate at least one pulse width modulation (PWM) signal according to the load signal A, and transmit the at least one pulse width modulation signal to the at least one power supply channel H that is turned on.
  • the power supply 2 can also It is configured as a boost integrated circuit (Boost IC).
  • Boost IC boost integrated circuit
  • the integrated circuit 3 is electrically connected to the plurality of power supply channels H of the power supply 2, and the integrated circuit 3 is configured to generate a Analog positive supply AVDD.
  • the integrated circuit 3 includes a plurality of signal processing parts 31, and each signal processing part in the plurality of signal processing parts 31 is electrically connected to a power supply channel in the plurality of power supply channels H and a power output port Between P, the power output port P outputs the analog positive power AVDD.
  • the multiple power supply channels H are described by taking two power supply channels H as an example, that is, they are divided into two phases. But not limited thereto, the number of the plurality of power supply channels H can be fine-tuned according to actual needs.
  • the timing controller 1 can judge whether the current picture is a heavy-duty picture according to the picture signal, if it is judged to be yes, it means that the current picture is a heavy-duty picture,
  • the load signal A (as shown in Figure 2) is a high-level signal, if it is judged to be negative, it means that the current picture is a light-load picture, and the load signal A (as shown in Figure 3) is a low-level signal .
  • the power supply 2 can open the two power supply channels H in response to the load signal A being the high level signal, so that the two opened power supply channels H can transmit electrical signals G1, G2, for example, electrical signals G1, G2 are pulse width modulation signals; in addition, as shown in Figure 1 and Figure 3, the electrical supplier 2 can respond to the load signal A for the A low-level signal turns on one of the two power supply channels H (such as the power supply channel H at the top of FIG.
  • the signal G1 is a pulse width modulation signal.
  • the electrical signal G2 can be a low-level signal.
  • each power supply channel H can also transmit a current detection signal CS, which is used to indicate whether the power supply channel H is turned on and to transmit the effective status of the pulse width modulation signal. For example, if the current detection signal CS is at a high level, it indicates that the power supply channel H has been opened for transmitting pulse width modulation signals, and if the current detection signal CS is at a low level, it indicates that the power supply channel H is not opened. Used to transmit pulse width modulated signals.
  • a current detection signal CS is used to indicate whether the power supply channel H is turned on and to transmit the effective status of the pulse width modulation signal. For example, if the current detection signal CS is at a high level, it indicates that the power supply channel H has been opened for transmitting pulse width modulation signals, and if the current detection signal CS is at a low level, it indicates that the power supply channel H is not opened. Used to transmit pulse width modulated signals.
  • the integrated circuit 3 includes two signal processing parts 31, one of the two signal processing parts 31 is electrically connected to one power supply channel H of the two power supply channels H and Between the power output ports P, the other signal processing part of the two signal processing parts 31 is electrically connected between the other power supply channel H of the two power supply channels H and the power output port P , the power output port P can output the analog positive power.
  • the signal processing unit 31 may include a switching element (such as an N-channel enhancement metal-oxide-semiconductor transistor, MOSFET) Q, an inductor L, a resistor R, and a rectifying element (such as a diode) D and a capacitor C, a control end (such as a gate) of the switching element Q is electrically connected to the power supply channel H, and the resistor R is electrically connected to a first end (such as a source) of the switching element Q Between a ground terminal, the inductor L is electrically connected between a second terminal (such as the drain) of the switching element Q and a positive terminal (such as a positive voltage of 12 volts) V, the One end of the rectifying element D is electrically connected to a second end of the switching element Q and the inductor L, the other end of the rectifying element D is electrically connected to the power output port P, and the capacitor C is electrically connected to the Between the power output port P and the ground terminal,
  • a switching element such
  • the inductors L of the two signal processing parts 31 can be connected to a positive voltage of 12 volts through the positive terminal V; the switch of the first signal processing part 31
  • the control terminal of the element Q can be connected to the electrical signal G1 through the first power supply channel H (for example, the upper power supply channel H), and the first end of the switching element Q of the first signal processing part 31 can be powered by the first power supply channel H.
  • the channel H is connected to the current detection signal CS; the control terminal of the switching element Q of the second signal processing part 31 can be connected to the electrical signal G2 through the second power supply channel H (such as the power supply channel H below), and the second The first terminal of the switching element Q of the first signal processing part 31 can receive the current detection signal CS through the second power supply channel H, but not limited thereto.
  • the power supplier 2 transmits at least one pulse width modulation signal to the at least one power supply channel that is turned on according to the load signal A. Therefore, the pulse width modulation signal can be transmitted through the opened power supply channel as a power source for subsequent generation of the analog positive power supply.
  • the power supply 2 includes a controller 21, and the controller 21 transmits the at least one pulse width modulation signal according to the load signal A, and the The at least one PWM signal is transmitted to the at least one power supply channel H that is turned on. Therefore, through the built-in control logic of the controller, after the controller receives the load signal A, it can generate an appropriate number of pulse width modulation signals according to the picture load information represented by the load signal A, as a subsequent An electrical signal source generating the simulated positive power supply.
  • the multiple power supply channels H are two power supply channels H. Therefore, corresponding to the two load modes in the load signal A, such as a heavy load screen or a light load screen, the two power supply channels can dispersely provide pulse width modulation signals, and transmit the signals in a distributed manner to make the circuit work The temperature is distributed to the peripheral devices of different power supply channels to avoid reducing the efficiency of the circuit operation.
  • the timing controller 1 judges whether a current picture is a heavy-duty picture according to the picture signal, and if the judgment is yes, the load signal A is a A high-level signal, if the judgment is negative, the load signal A is a low-level signal. Therefore, by judging the two level characteristics of a single load signal A by the timing controller 1, two load modes can be represented, such as a heavy load screen or a light load screen, so as to facilitate subsequent generation of a corresponding number of power sources.
  • the power supply 2 opens the two power supply channels H in response to the load signal A being the high-level signal; and the power supply 2
  • the supplier 2 turns on one power supply channel H of the two power supply channels in response to the load signal A being the low level signal. Therefore, when the load signal A is the high-level signal, it means that the current picture is a heavy-duty picture, and the two power supply channels are opened, which can reduce the temperature of the peripheral components of the power supply; when the When the load signal A is the low-level signal, it means that the current picture is a light-load picture, and only one of the two power supply channels is opened, for example, only the first power supply channel is opened, which can greatly reduce the transmission of electrical signals.
  • the generated heat energy can not only reduce the temperature of the peripheral components of the power supply, but also improve the working efficiency of the circuit under the condition of light load screen.
  • the integrated circuit 3 includes a plurality of signal processing units 31, and each signal processing unit in the plurality of signal processing units 31 is electrically connected to the plurality of signal processing units. Between one of the power supply channels H and a power output port P, the power output port P outputs the analog positive power supply AVDD. Therefore, the integrated circuit is provided with signal processing units corresponding to the number of the power supply channels, so as to transmit corresponding electrical signals through the power supply channels to generate the analog positive power supply.
  • the signal processing unit 31 includes a switch element Q, an inductor L, a resistor R, a rectifier element D, and a capacitor C, the switch The element Q is electrically connected to the power supply channel H, the resistor R is electrically connected between the switching element Q and a ground terminal, and the inductor L is electrically connected between the switching element Q and a positive terminal V
  • One end of the rectifying element D is electrically connected to the switching element Q and the inductor L, the other end of the rectifying element D is electrically connected to the power output port P, and the capacitor C is electrically connected to the power output between port P and the ground terminal.
  • the power supply channel is electrically connected through the switching element, the resistor is electrically connected to the switching element, the inductor is electrically connected to the switching element, and the rectifying element is electrically connected to the switching element and the capacitor
  • the power output port can be used to output the analog positive power supply with appropriate electric energy, which can be used as a power source for the display device to display images with different load levels.
  • the power supply 2 is configured as a boost integrated circuit. Therefore, the power supply can be used to receive the load signal A to open an appropriate number of power supply channels, and generate a signal in an appropriate form for transmission, so as to be used as a basis for subsequent generation of the analog positive power supply.
  • the display power supply module generates the load signal A according to the picture signal through the timing controller 1, and the power supply 2 turns on the multiple At least one power supply channel in the three power supply channels is used to transmit electrical signals; and the integrated circuit 3 generates the analog positive power supply according to the electrical signal transmitted by the at least one opened power supply channel.
  • FIG. 4 is a schematic circuit diagram of a display power supply module shown as a comparative example.
  • another display power supply module includes a power supply 2' and an integrated circuit 3'.
  • the power supply 2' does not selectively open the power supply channel to transmit electrical signals according to different load modes.
  • the integrated circuit 3' simultaneously receives signals from the power supply 2'.
  • the electrical signals of the two phases are used to generate another analog positive power supply AVDD'.
  • the analog positive power supply AVDD' is the same in the heavy-load picture or the light-load picture, so that the operating temperature of the circuit under the light-load picture cannot be lowered, and the derivative circuit low operating efficiency.
  • the display power supply module in the embodiment of the present invention uses the timing controller to generate the load signal to turn on a plurality of power supply channels.
  • At least one power supply channel in the power supply channel transmits an electrical signal to generate the analog positive power supply.
  • the number of electrical signals of the analog positive power supply is different in the heavy load screen or the light load screen. In the case of a light load screen, only one power supply channel is turned on , can greatly reduce the heat energy generated by the transmission of electrical signals, in addition to reducing the temperature of the peripheral components of the power supply, and can also improve the working efficiency of the circuit under the condition of a light-loaded screen.
  • a second aspect of the present invention provides a display device, such as a liquid crystal display device.
  • the display device includes the above-mentioned display power supply module, and its implementation content and beneficial effects are described above, and will not be repeated here.
  • the load signal is generated by the timing controller according to the picture signal; the power supply device turns on at least one of the multiple power supply channels according to the load signal a power supply channel for transmitting electrical signals; and the integrated circuit generates the analog positive power supply according to the electrical signal transmitted by the at least one power supply channel that is turned on. Therefore, more power supply channels are opened on the heavy load screen to transmit electrical signals, and less power supply channels are opened to transmit electrical signals on the light load screen.
  • the number of electrical signals of the analog positive power supply is different in the heavy load screen or the light load screen.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)

Abstract

一种显示供电模块及显示装置，显示供电模块包括：一时序控制器（1），被配置为依据一画面信号生成一负载信号（A）；一电供应器（2），电连接时序控制器（1），电供应器（2）被配置为具有多个供电通道（H），依据负载信号（A）开启多个供电通道（H）中的至少一个供电通道（H），用于输送电信号；及一整合电路（3），电连接电供应器（2）的多个供电通道（H），整合电路（3）被配置为依据被开启的至少一个供电通道（H）输送的电信号生成一模拟正电源（AVDD）。

Description

显示供电模块及显示装置 技术领域
本发明涉及显示技术领域，具体涉及一种显示供电模块及显示装置。
 背景技术
随着使用者对于显示品质要求提高，显示装置的分辨率越来越高。随着分辨率越高,不同控制回路的电流也在增加，相应地，在不同回路中的集成电路的工作温度也越来越高，且外围器件的规格也相应提高。
举例来说，在液晶显示装置中，可以根据显示画面的内容判定负载程度，以往虽有一些分散式电路设计，但电路运作方式未因应不同负载程度适应性改变，导致集成电路在负载较轻情况下的效率低，仍待改善。
 技术问题
本发明提供一种显示供电模块及显示装置，用于改善现有技术的显示装置的集成电路的效率。
 技术解决方案
为解决上述问题，本发明的一第一方面提供一种显示供电模块，包括：一时序控制器，被配置为依据一画面信号生成一负载信号；一电供应器，电连接所述时序控制器，所述电供应器被配置为具有多个供电通道，依据所述负载信号开启所述多个供电通道中的至少一个供电通道，用于输送电信号；及一整合电路，电连接所述电供应器的所述多个供电通道，所述整合电路被配置为依据所述被开启的至少一个供电通道输送的电信号生成一模拟正电源；其中所述电供应器依据所述负载信号传送至少一脉宽调制信号到所述被开启的至少一个供电通道；及所述整合电路包括多个信号处理部，所述多个信号处理部中的每个信号处理部电连接于所述多个供电通道中的一个供电通道与一电源输出埠之间，所述电源输出埠输出所述模拟正电源。
根据本发明的一实施例，所述电供应器包括一控制器，所述控制器依据所述负载信号生成所述至少一脉宽调制信号，将所述至少一脉宽调制信号传送到所述被开启的至少一个供电通道。
根据本发明的一实施例，所述多个供电通道为两个供电通道。
根据本发明的一实施例，所述时序控制器依据所述画面信号判断一当前画面是否为一重载画面，若判断为是，所述负载信号为一高电平信号，若判断为否，所述负载信号为一低电平信号。
根据本发明的一实施例，所述电供应器响应于所述负载信号为所述高电平信号而开启所述两个供电通道；及所述电供应器响应于所述负载信号为所述低电平信号而开启所述两个供电通道中的一个供电通道。
根据本发明的一实施例，所述信号处理部包括一开关元件、一电感器、一电阻器、一整流元件及一电容器，所述开关元件电连接所述供电通道，所述电阻器电连接于所述开关元件与一接地端之间，所述电感器电连接所述开关元件与一正电端之间，所述整流元件的一端电连接所述开关元件及所述电感器，所述整流元件的另一端电连接所述电源输出埠，所述电容器电连接于所述电源输出埠与所述接地端之间。
根据本发明的一实施例，所述电供应器被配置成一升压集成电路。
为解决上述问题，本发明的一第二方面提供一种显示供电模块，包括：一时序控制器，被配置为依据一画面信号生成一负载信号；一电供应器，电连接所述时序控制器，所述电供应器被配置为具有多个供电通道，依据所述负载信号开启所述多个供电通道中的至少一个供电通道，用于输送电信号；及一整合电路，电连接所述电供应器的所述多个供电通道，所述整合电路被配置为依据所述被开启的至少一个供电通道输送的电信号生成一模拟正电源。
根据本发明的一实施例，所述电供应器依据所述负载信号传送至少一脉宽调制信号到所述被开启的至少一个供电通道。
根据本发明的一实施例，所述电供应器包括一控制器，所述控制器依据所述负载信号生成所述至少一脉宽调制信号，将所述至少一脉宽调制信号传送到所述被开启的至少一个供电通道。
根据本发明的一实施例，所述多个供电通道为两个供电通道。
根据本发明的一实施例，所述时序控制器依据所述画面信号判断一当前画面是否为一重载画面，若判断为是，所述负载信号为一高电平信号，若判断为否，所述负载信号为一低电平信号。
根据本发明的一实施例，所述电供应器响应于所述负载信号为所述高电平信号而开启所述两个供电通道；及所述电供应器响应于所述负载信号为所述低电平信号而开启所述两个供电通道中的一个供电通道。
根据本发明的一实施例，所述整合电路包括多个信号处理部，所述多个信号处理部中的每个信号处理部电连接于所述多个供电通道中的一个供电通道与一电源输出埠之间，所述电源输出埠输出所述模拟正电源。
根据本发明的一实施例，所述信号处理部包括一开关元件、一电感器、一电阻器、一整流元件及一电容器，所述开关元件电连接所述供电通道，所述电阻器电连接于所述开关元件与一接地端之间，所述电感器电连接所述开关元件与一正电端之间，所述整流元件的一端电连接所述开关元件及所述电感器，所述整流元件的另一端电连接所述电源输出埠，所述电容器电连接于所述电源输出埠与所述接地端之间。
根据本发明的一实施例，所述电供应器被配置成一升压集成电路。
为解决上述问题，本发明的一第三方面提供一种显示装置，包括如上所述的显示供电模块。
 有益效果
本发明的显示供电模块及显示装置，通过所述时序控制器依据所述画面信号生成所述负载信号；所述电供应器依据所述负载信号开启所述多个供电通道中的至少一个供电通道，用于输送电信号；及所述整合电路依据所述被开启的至少一个供电通道输送的电信号生成所述模拟正电源。从而，在重载画面开启较多的供电通道输送电信号，在轻载画面开启较少的供电通道输送电信号，所述模拟正电源在重载画面或轻载画面的电信号数量不同，在轻载画面情况下，只有一个供电通道被开启，可以大幅降低电信号传输所生成的热能，除可降低所述电供应器的外围器件温度，还可提高轻载画面情况下的电路工作效率。
 附图说明
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅是本发明的一些实施例，对于本领域技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本发明实施例的显示供电模块的电路示意图；
图2为本发明实施例在重载画面时开启两个供电通道的信号示意图；
图3为本发明实施例在轻载画面时开启单一供电通道的信号示意图；
图4为被示出当作一对照例的显示供电模块的电路示意图。
 本发明的实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述。显然，所描述的实施例仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
在本文的描述中，应被理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、“顺时针”、“逆时针”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。
在本文的描述中，应被理解的是，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个所述特征。在本发明的描述中，“多个”的含义是两个或两个以上，除非另有明确具体的限定。
在本文中提供许多不同的实施方式或例子用来实现本发明的不同结构。为了简化本发明的公开内容，下文中对特定示例的部件和设置进行描述。当然，它们仅为示例，并且目的不在于限制本发明。此外，本发明可以在不同示例中重复参考数字和/或参考字母，这种重复是为了简化和清楚的目的，其本身不指示所讨论各种实施方式和/或设置之间的关系。此外，本文提供的各种特定的工艺和材料的示例，但是本领域普通技术人员可以意识到其他工艺的应用和/或其他材料的使用。
在液晶显示装置中，可以根据显示画面的内容判定负载程度。举例说明如下，但不以此为限。
本发明的一第一方面提供一种显示供电模块，所述显示供电模块可适用于高分辨率的液晶显示装置，譬如8K分辨率的液晶显示装置，但不以此为限。
如图1所示，所述显示供电模块包括：一时序控制器1、一电供应器2及一整合电路3，所述时序控制器1电连接所述电供应器2，所述电供应器2电连接所述整合电路3，用以因应不同负载程度的显示画面输出直流电源，可供应给液晶显示装置内部的电路运作。
以下举例说明所述显示供电模块的实施方式，但不以此为限。
举例来说，如图1所示，所述时序控制器1可被配置为依据一画面信号生成一负载信号A。譬如所述时序控制器1可以接收来自其他检测装置(譬如嵌入式片上系统)检测出的画面信号，用于得知当前画面的负载程度，譬如非纯色画面的内容较为复杂，可被视为重载画面，纯色或灰阶画面的内容较为单纯，可被视为轻载画面，所述时序控制器1可依据所述画面信号生成所述负载信号A，用于表示显示画面的不同负载程度。
应被理解的是，所述负载程度可以譬如是两种或两种以上，相应地，所述多个供电通道H的数量也可以譬如是两个或两个以上，所述负载信号A可以譬如被配置成具备单一特征的多种变化(如多种电平或多种脉宽等)或多种特征的组合的信号，以利被识别出多种负载程度。
如图1所示，所述电供应器2电连接所述时序控制器1，所述电供应器2可被配置为具有多个供电通道H，依据所述负载信号A开启所述多个供电通道H中的至少一个供电通道H，用于输送电信号。譬如所述电供应器2可依据所述负载信号A传送至少一脉宽调制信号到所述被开启的至少一个供电通道H，譬如所述电供应器2包括一控制器21，所述控制器21可依据所述负载信号A生成至少一脉宽调制(PWM)信号，将所述至少一脉宽调制信号传送到所述被开启的至少一个供电通道H，譬如所述电供应器2还可被配置成一升压集成电路(Boost IC)。
如图1所示，所述整合电路3电连接所述电供应器2的所述多个供电通道H，所述整合电路3被配置为依据所述被开启的供电通道H输送的电力生成一模拟正电源AVDD。譬如，所述整合电路3包括多个信号处理部31，所述多个信号处理部31中的每个信号处理部电连接于所述多个供电通道H中的一个供电通道与一电源输出埠P之间，所述电源输出埠P输出所述模拟正电源AVDD。
可选地，如图1所示，为了简化说明，所述多个供电通道H以两个供电通道H为例进行说明，即分成两个相位。但不以此为限，所述多个供电通道H的数量可以因应实际需求进行微调。
举例来说，如图1所示，所述时序控制器1可依据所述画面信号判断所述当前画面是否为重载画面，若判断为是，表示所述当前画面为重载画面，所述负载信号A(如图2所示)为一高电平信号，若判断为否，表示所述当前画面为轻载画面，所述负载信号A(如图3所示)为一低电平信号。
如图1及图2所示，所述电供应器2可响应于所述负载信号A为所述高电平信号而开启所述两个供电通道H，使所述被开启的两个供电通道H可以输送电信号G1、G2，譬如电信号G1、G2分别为脉宽调制信号；另，如图1及图3所示，所述电供应器2可响应于所述负载信号A为所述低电平信号而开启所述两个供电通道H中的一个供电通道(譬如图1上方的供电通道H)，使所述被开启的一个供电通道H可以输送电信号(譬如G1)，譬如电信号G1为脉宽调制信号。此时，电信号G2可为低电平信号，可选地，每个供电通道H还可传送一个电流侦测信号CS，用于指示所述供电通道H是否开启并传送脉宽调制信号的有效性指标，譬如所述电流侦测信号CS为高电平表示所述供电通道H已开启用于传送脉宽调制信号，所述电流侦测信号CS为低电平表示所述供电通道H未开启用于传送脉宽调制信号。
如图1所示，所述整合电路3包括两个信号处理部31，所述两个信号处理部31中的一个信号处理部电连接于所述两个供电通道H中的一个供电通道H与所述电源输出埠P之间，所述两个信号处理部31中的另一个信号处理部电连接于所述两个供电通道H中的另一个供电通道H与所述电源输出埠P之间，所述电源输出埠P可以输出所述模拟正电源。
如图1所示，所述信号处理部31可包括一开关元件(譬如N通道增强型金氧半晶体管，MOSFET)Q、一电感器L、一电阻器R、一整流元件(譬如二极管)D及一电容器C，所述开关元件Q的一控制端(譬如栅极)电连接所述供电通道H，所述电阻器R电连接于所述开关元件Q的一第一端(譬如源极)与一接地端之间，所述电感器L电连接所述开关元件Q的一第二端(譬如漏极)与一正电端(譬如接入12伏特的正电压)V之间，所述整流元件D的一端电连接所述开关元件Q的一第二端及所述电感器L，所述整流元件D的另一端电连接所述电源输出埠P，所述电容器C电连接于所述电源输出埠P与所述接地端之间，所述电源输出埠P输出所述模拟正电源AVDD，以利适用于不同负载画面。
在此例中，如图1所示，两个信号处理部31的所述电感器L可以通过所述正电端V接入12伏特的正电压；第一个信号处理部31的所述开关元件Q的控制端可以通过第一个供电通道H(譬如上方的供电通道H)接入电信号G1，第一个信号处理部31的所述开关元件Q的第一端可以通过第一个供电通道H接入电流侦测信号CS；第二个信号处理部31的所述开关元件Q的控制端可以通过第二个供电通道H(譬如下方的供电通道H)接入电信号G2，第二个信号处理部31的所述开关元件Q的第一端可以通过第二个供电通道H接入电流侦测信号CS，但不以此为限。
可选地，在一实施例中，如图1所示，所述电供应器2依据所述负载信号A传送至少一脉宽调制信号到所述被开启的至少一个供电通道。从而，可以通过所述被开启的供电通道传送所述脉宽调制信号，作为后续生成所述模拟正电源的电力来源。
以下举例说明所述显示供电模块的一些实施例，但不以此为限。
可选地，在一实施例中，如图1所示，所述电供应器2包括一控制器21，所述控制器21依据所述负载信号A传送所述至少一脉宽调制信号，将所述至少一脉宽调制信号传送到所述被开启的至少一个供电通道H。从而，通过所述控制器内建的控制逻辑，在所述控制器接收到所述负载信号A后，可依据所述负载信号A表示的画面负载信息生成适当数量的脉宽调制信号，作为后续生成所述模拟正电源的电信号来源。
可选地，在一实施例中，如图1所示，所述多个供电通道H为两个供电通道H。从而，相应于所述负载信号A中的两种负载模式，譬如重载画面或轻载画面，所述两个供电通道可以分散提供脉宽调制信号，通过分散式传递信号的方式，把电路工作温度分散到不同供电通道的外围器件，以避免降低电路工作效率。
可选地，在一实施例中，如图1所示，所述时序控制器1依据所述画面信号判断一当前画面是否为一重载画面，若判断为是，所述负载信号A为一高电平信号，若判断为否，所述负载信号A为一低电平信号。从而，通过所述时序控制器1判读单一负载信号A的两种电平特征，即可表示两种负载模式，譬如重载画面或轻载画面，以利后续生成相应数量的电力来源。
可选地，在一实施例中，如图1所示，所述电供应器2响应于所述负载信号A为所述高电平信号而开启所述两个供电通道H；及所述电供应器2响应于所述负载信号A为所述低电平信号而开启所述两个供电通道中的一个供电通道H。从而，当所述负载信号A为所述高电平信号时，表示当前画面为重载画面，所述两个供电通道都被开启，可以降低所述电供应器的外围器件温度；当所述负载信号A为所述低电平信号时，表示当前画面为轻载画面，所述两个供电通道中只有一个供电通道被开启，譬如只有第一个供电通道被开启，可以大幅降低电信号传输所生成的热能，除可降低所述电供应器的外围器件温度，还可提高轻载画面情况下的电路工作效率。
可选地，在一实施例中，如图1所示，所述整合电路3包括多个信号处理部31，所述多个信号处理部31中的每个信号处理部电连接于所述多个供电通道H中的一个供电通道与一电源输出埠P之间，所述电源输出埠P输出所述模拟正电源AVDD。从而，所述整合电路设置相应于所述供电通道数量的信号处理部，以利用所述供电通道传输相应的电信号生成所述模拟正电源。
可选地，在一实施例中，如图1所示，所述信号处理部31包括一开关元件Q、一电感器L、一电阻器R、一整流元件D及一电容器C，所述开关元件Q电连接所述供电通道H，所述电阻器R电连接于所述开关元件Q与一接地端之间，所述电感器L电连接所述开关元件Q与一正电端V之间，所述整流元件D的一端电连接所述开关元件Q及所述电感器L，所述整流元件D的另一端电连接所述电源输出埠P，所述电容器C电连接于所述电源输出埠P与所述接地端之间。从而，通过所述开关元件电连接所述供电通道，所述电阻器电连接所述开关元件，所述电感器电连接所述开关元件，所述整流元件电连接所述开关元件及所述电容器，可利用所述电源输出埠输出带有适当电能的所述模拟正电源，作为显示装置显示不同负载程度画面的电力来源。
可选地，在一实施例中，如图1所示，所述电供应器2被配置成一升压集成电路。从而，可以利用所述电供应器接收所述负载信号A以开启适当数量的供电通道，及生成适当形式的信号进行传输，以利作为后续生成所述模拟正电源的依据。
在图1示出的实施例中，所述显示供电模块通过所述时序控制器1依据所述画面信号生成所述负载信号A，所述电供应器2依据所述负载信号A开启所述多个供电通道中的至少一个供电通道，用于输送电信号；及所述整合电路3依据所述被开启的至少一个供电通道输送的电信号生成所述模拟正电源。
从而，在重载画面开启较多的供电通道输送电信号，在轻载画面开启较少的供电通道输送电信号，所述模拟正电源在重载画面或轻载画面的电信号数量不同，在轻载画面情况下，只有一个供电通道被开启，可以大幅降低电信号传输所生成的热能，除可降低所述电供应器的外围器件温度，还可提高轻载画面情况下的电路工作效率。
图4为被示出当作一对照例的显示供电模块的电路示意图，在图4示出的对照例中，另一显示供电模块包括一电供应器2’及一整合电路3’，所述电供应器2’没有针对不同负载模式来选择性开启供电通道传送电信号，无论当前画面是重载画面或轻载画面，所述整合电路3’都是同时接收来自所述电供应器2’的两个相位的电信号来生成另一模拟正电源AVDD’，所述模拟正电源AVDD’在重载画面或轻载画面都相同，导致在轻载画面下的电路运作温度无法降低，衍生电路运作效率低的情况。
相较于没有通过一时序控制器生成一负载信号开启多个供电通道中的至少一个供电通道的对照例，本发明实施例的显示供电模块通过所述时序控制器生成所述负载信号开启多个供电通道中的至少一个供电通道输送电信号生成所述模拟正电源，所述模拟正电源在重载画面或轻载画面的电信号数量不同，在轻载画面情况下，只有一个供电通道被开启，可以大幅降低电信号传输所生成的热能，除可降低所述电供应器的外围器件温度，还可提高轻载画面情况下的电路工作效率。
此外，本发明的一第二方面提供一种显示装置，譬如液晶显示装置，所述显示装置包括如上所述的显示供电模块，其实施内容及有益效果说明如上，不再赘述。
本发明上述实施例的显示供电模块及显示装置，通过所述时序控制器依据所述画面信号生成所述负载信号；所述电供应器依据所述负载信号开启所述多个供电通道中的至少一个供电通道，用于输送电信号；及所述整合电路依据所述被开启的至少一个供电通道输送的电信号生成所述模拟正电源。从而，在重载画面开启较多的供电通道输送电信号，在轻载画面开启较少的供电通道输送电信号，所述模拟正电源在重载画面或轻载画面的电信号数量不同，在轻载画面情况下，只有一个供电通道被开启，可以大幅降低电信号传输所生成的热能，除可降低所述电供应器的外围器件温度，还可提高轻载画面情况下的电路工作效率。
以上对本发明实施例进行详细介绍，本文中应用具体个例对本发明的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本发明的技术方案及其核心思想；本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本发明各实施例的技术方案的范围。

Claims (17)

  1. 一种显示供电模块，其包括：
    一时序控制器，被配置为依据一画面信号生成一负载信号；
    一电供应器，电连接所述时序控制器，所述电供应器被配置为具有多个供电通道，依据所述负载信号开启所述多个供电通道中的至少一个供电通道，用于输送电信号；及
    一整合电路，电连接所述电供应器的所述多个供电通道，所述整合电路被配置为依据所述被开启的至少一个供电通道输送的电信号生成一模拟正电源；
    其中所述电供应器依据所述负载信号传送至少一脉宽调制信号到所述被开启的至少一个供电通道；及所述整合电路包括多个信号处理部，所述多个信号处理部中的每个信号处理部电连接于所述多个供电通道中的一个供电通道与一电源输出埠之间，所述电源输出埠输出所述模拟正电源。
  2. 根据权利要求1所述的显示供电模块，其中所述电供应器包括一控制器，所述控制器依据所述负载信号生成所述至少一脉宽调制信号，将所述至少一脉宽调制信号传送到所述被开启的至少一个供电通道。
  3. 根据权利要求1所述的显示供电模块，其中所述多个供电通道为两个供电通道。
  4. 根据权利要求3所述的显示供电模块，其中所述时序控制器依据所述画面信号判断一当前画面是否为一重载画面，若判断为是，所述负载信号为一高电平信号，若判断为否，所述负载信号为一低电平信号。
  5. 根据权利要求4所述的显示供电模块，其中所述电供应器响应于所述负载信号为所述高电平信号而开启所述两个供电通道；及所述电供应器响应于所述负载信号为所述低电平信号而开启所述两个供电通道中的一个供电通道。
  6. 根据权利要求1所述的显示供电模块，其中所述信号处理部包括一开关元件、一电感器、一电阻器、一整流元件及一电容器，所述开关元件电连接所述供电通道，所述电阻器电连接于所述开关元件与一接地端之间，所述电感器电连接所述开关元件与一正电端之间，所述整流元件的一端电连接所述开关元件及所述电感器，所述整流元件的另一端电连接所述电源输出埠，所述电容器电连接于所述电源输出埠与所述接地端之间。
  7. 根据权利要求1所述的显示供电模块，其中所述电供应器被配置成一升压集成电路。
  8. 一种显示供电模块，其包括：
    一时序控制器，被配置为依据一画面信号生成一负载信号；
    一电供应器，电连接所述时序控制器，所述电供应器被配置为具有多个供电通道，依据所述负载信号开启所述多个供电通道中的至少一个供电通道，用于输送电信号；及
    一整合电路，电连接所述电供应器的所述多个供电通道，所述整合电路被配置为依据所述被开启的至少一个供电通道输送的电信号生成一模拟正电源。
  9. 根据权利要求8所述的显示供电模块，其中所述电供应器依据所述负载信号传送至少一脉宽调制信号到所述被开启的至少一个供电通道。
  10. 根据权利要求9所述的显示供电模块，其中所述电供应器包括一控制器，所述控制器依据所述负载信号生成所述至少一脉宽调制信号，将所述至少一脉宽调制信号传送到所述被开启的至少一个供电通道。
  11. 根据权利要求8所述的显示供电模块，其中所述多个供电通道为两个供电通道。
  12. 根据权利要求11所述的显示供电模块，其特征在于，所述时序控制器依据所述画面信号判断一当前画面是否为一重载画面，若判断为是，所述负载信号为一高电平信号，若判断为否，所述负载信号为一低电平信号。
  13. 根据权利要求12所述的显示供电模块，其中所述电供应器响应于所述负载信号为所述高电平信号而开启所述两个供电通道；及所述电供应器响应于所述负载信号为所述低电平信号而开启所述两个供电通道中的一个供电通道。
  14. 根据权利要求8所述的显示供电模块，其中所述整合电路包括多个信号处理部，所述多个信号处理部中的每个信号处理部电连接于所述多个供电通道中的一个供电通道与一电源输出埠之间，所述电源输出埠输出所述模拟正电源。
  15. 根据权利要求14所述的显示供电模块，其中所述信号处理部包括一开关元件、一电感器、一电阻器、一整流元件及一电容器，所述开关元件电连接所述供电通道，所述电阻器电连接于所述开关元件与一接地端之间，所述电感器电连接所述开关元件与一正电端之间，所述整流元件的一端电连接所述开关元件及所述电感器，所述整流元件的另一端电连接所述电源输出埠，所述电容器电连接于所述电源输出埠与所述接地端之间。
  16. 根据权利要求8所述的显示供电模块，其中所述电供应器被配置成一升压集成电路。
  17. 一种显示装置，其包括一显示供电模块，包括：
    一时序控制器，被配置为依据一画面信号生成一负载信号；
    一电供应器，电连接所述时序控制器，所述电供应器被配置为具有多个供电通道，依据所述负载信号开启所述多个供电通道中的至少一个供电通道，用于输送电信号；及
    一整合电路，电连接所述电供应器的所述多个供电通道，所述整合电路被配置为依据所述被开启的至少一个供电通道输送的电信号生成一模拟正电源。
PCT/CN2021/128109 2021-10-18 2021-11-02 显示供电模块及显示装置 WO2023065398A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US17/615,086 US20240029620A1 (en) 2021-10-18 2021-11-02 Display power-supplying module and display device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202111211381.4A CN113992005B (zh) 2021-10-18 2021-10-18 显示供电模块及显示装置
CN202111211381.4 2021-10-18

Publications (1)

Publication Number Publication Date
WO2023065398A1 true WO2023065398A1 (zh) 2023-04-27

Family

ID=79739180

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2021/128109 WO2023065398A1 (zh) 2021-10-18 2021-11-02 显示供电模块及显示装置

Country Status (3)

Country Link
US (1) US20240029620A1 (zh)
CN (1) CN113992005B (zh)
WO (1) WO2023065398A1 (zh)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170310224A1 (en) * 2016-04-21 2017-10-26 Samsung Electronics Co., Ltd. Power supply device, display apparatus having the same and power supply method
CN111223461A (zh) * 2020-01-16 2020-06-02 昆山龙腾光电股份有限公司 一种调压电路和显示装置
CN111462709A (zh) * 2020-05-13 2020-07-28 京东方科技集团股份有限公司 显示面板的驱动装置及方法、显示面板
CN112671216A (zh) * 2021-01-15 2021-04-16 康舒科技股份有限公司 多输出的电源供应器及其功率分配控制方法
CN113054839A (zh) * 2021-03-30 2021-06-29 京东方科技集团股份有限公司 电源管理电路、显示面板
CN113342105A (zh) * 2021-06-03 2021-09-03 昆山国显光电有限公司 显示面板的电源调节装置及方法、显示装置

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101576024B1 (ko) * 2009-12-15 2015-12-09 엘지디스플레이 주식회사 전원 공급 장치 및 이를 포함하는 디스플레이 장치
CN101917069B (zh) * 2010-08-31 2012-10-03 东莞精恒电子有限公司 多功能时序电源控制器
KR101985313B1 (ko) * 2012-10-16 2019-06-03 삼성전자주식회사 디스플레이장치 및 그 제어방법
CN104052258B (zh) * 2013-03-12 2017-10-24 万国半导体股份有限公司 提供不间断电源的引入负载开关的容错电源
CN103575306A (zh) * 2013-11-18 2014-02-12 东南大学 一种无源无线多参数传感器系统及其多参数测量方法
CN104850210B (zh) * 2015-04-30 2017-12-01 华为技术有限公司 一种电源门控电路
KR101625817B1 (ko) * 2015-10-22 2016-05-31 엘지디스플레이 주식회사 전원 공급 장치 및 이를 포함하는 디스플레이 장치
KR102542512B1 (ko) * 2016-04-25 2023-06-13 삼성디스플레이 주식회사 전원 공급 장치 및 이를 갖는 표시장치
CN109036313A (zh) * 2018-08-23 2018-12-18 昆山龙腾光电有限公司 电压产生电路及显示装置
CN111508418B (zh) * 2020-05-12 2023-04-07 Tcl华星光电技术有限公司 显示装置的驱动电路及驱动方法
CN113014092B (zh) * 2021-04-30 2022-12-02 北京京东方显示技术有限公司 稳压供电电源、稳压供电方法及显示装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170310224A1 (en) * 2016-04-21 2017-10-26 Samsung Electronics Co., Ltd. Power supply device, display apparatus having the same and power supply method
CN111223461A (zh) * 2020-01-16 2020-06-02 昆山龙腾光电股份有限公司 一种调压电路和显示装置
CN111462709A (zh) * 2020-05-13 2020-07-28 京东方科技集团股份有限公司 显示面板的驱动装置及方法、显示面板
CN112671216A (zh) * 2021-01-15 2021-04-16 康舒科技股份有限公司 多输出的电源供应器及其功率分配控制方法
CN113054839A (zh) * 2021-03-30 2021-06-29 京东方科技集团股份有限公司 电源管理电路、显示面板
CN113342105A (zh) * 2021-06-03 2021-09-03 昆山国显光电有限公司 显示面板的电源调节装置及方法、显示装置

Also Published As

Publication number Publication date
CN113992005A (zh) 2022-01-28
US20240029620A1 (en) 2024-01-25
CN113992005B (zh) 2024-01-30

Similar Documents

Publication Publication Date Title
KR101243402B1 (ko) 액정표시소자의 하이브리드 백라이트 구동 장치
KR102576149B1 (ko) 디스플레이 장치 및 그 제어 방법
JP5169134B2 (ja) バックライト用ｌｅｄ駆動回路
CN104933984B (zh) 显示装置及其驱动方法和驱动模块
US10115352B2 (en) Backlight driving circuit, liquid crystal display and backlight adjusting method
JP4932821B2 (ja) 電源装置、発光制御装置、表示装置
US9362820B2 (en) DCDC converter, semiconductor device, and power generation device
CN109889040A (zh) Dc-dc转换器
US9711101B2 (en) Analogy voltage source circuit and display apparatus
CN206877668U (zh) 一种显示屏亮度调节电路以及移动终端
US20230384659A1 (en) Laser projection apparatus
TWI343135B (en) Light emitting device and control method thereof
TW200847096A (en) LCD power supply
WO2023065398A1 (zh) 显示供电模块及显示装置
CN112114479B (zh) 激光投影设备
TWI609563B (zh) Power switching circuit
US7990372B2 (en) Power supply apparatus and liquid crystal display including the same
EP2892135A1 (en) Power supply and energy efficient gate driver
US20050104825A1 (en) Liquid crystal display and driving circuit thereof
WO2023040004A1 (zh) 显示面板的光源驱动电路和光源驱动方法
TW201807921A (zh) 充電裝置及其控制方法
JP3122962U (ja) 液晶テレビジョン、およびバックライト用電源供給回路
JP3122962U7 (zh)
CN109637466A (zh) 电子纸显示装置
CN107105178A (zh) 电视机电源

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 17615086

Country of ref document: US

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 21961139

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE