WO2022083099A1 - 显示驱动装置及电子设备 - Google Patents

显示驱动装置及电子设备 Download PDF

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Publication number
WO2022083099A1
WO2022083099A1 PCT/CN2021/091059 CN2021091059W WO2022083099A1 WO 2022083099 A1 WO2022083099 A1 WO 2022083099A1 CN 2021091059 W CN2021091059 W CN 2021091059W WO 2022083099 A1 WO2022083099 A1 WO 2022083099A1
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WIPO (PCT)
Prior art keywords
voltage
resistor
conversion unit
adjustment
power supply
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PCT/CN2021/091059
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English (en)
French (fr)
Inventor
郝荣杰
Original Assignee
北京集创北方科技股份有限公司
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Publication of WO2022083099A1 publication Critical patent/WO2022083099A1/zh
Priority to US18/301,319 priority Critical patent/US11990088B2/en

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    • 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
    • G09G3/22—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 using controlled light sources
    • G09G3/30—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 using controlled light sources using electroluminescent panels
    • G09G3/32—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • G09G3/3208—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
    • G09G3/3225—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix
    • 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
    • G09G3/22—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 using controlled light sources
    • G09G3/30—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 using controlled light sources using electroluminescent panels
    • G09G3/32—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • 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
    • G09G3/22—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 using controlled light sources
    • G09G3/30—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 using controlled light sources using electroluminescent panels
    • G09G3/32—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • G09G3/3208—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0233—Improving the luminance or brightness uniformity across the screen
    • 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
    • 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
    • G09G2330/028—Generation of voltages supplied to electrode drivers in a matrix display other than LCD

Definitions

  • the present disclosure relates to the field of display technology, and in particular, to a display driving device and an electronic device.
  • the display panel is an important part of the electronic device to realize the display function.
  • different areas of the existing display panel have the problem of uneven brightness. The brightness difference is getting bigger and bigger, and the display effect is getting worse and worse.
  • a display driving device which includes:
  • a power supply module for outputting the first power supply voltage and the second power supply voltage
  • a display panel comprising a power supply interface electrically connected to the power supply module, the power supply interface is used for inputting the first power supply voltage and the second power supply voltage
  • the display panel includes a plurality of light-emitting transistors, each light-emitting transistor The first end of each light-emitting transistor is used to receive the first power supply voltage, the second end of each light-emitting transistor is used to receive the second power supply voltage, and the display panel is divided into multiple parts according to the distance between the light-emitting transistor and the power supply interface.
  • a display area each display area includes one or more light-emitting transistors
  • the power module is further configured to output a first adjustment voltage and/or a second adjustment voltage for a target display area whose distance is greater than a preset distance, so as to use the first adjustment voltage to emit light in the target display area
  • the first terminal voltage of the transistor is adjusted and/or the second terminal voltage is adjusted by using the second adjustment voltage.
  • the power module includes:
  • a first voltage conversion unit configured to obtain the first power supply voltage and the second power supply voltage according to the input voltage.
  • the power module further includes:
  • the voltage adjustment unit is configured to output the first adjustment voltage according to the first reference voltage, and/or output the second adjustment voltage according to the second reference voltage.
  • the voltage adjustment unit includes a first operational amplifier, a first resistor, and a second resistor, wherein:
  • the positive input terminal of the first operational amplifier is used to input the first reference voltage
  • the negative input terminal of the first operational amplifier is electrically connected to the second terminal of the first resistor
  • the first operation The output end of the amplifier is electrically connected to the second end of the first resistor and the first end of the second resistor
  • the second end of the second resistor is used for outputting the first adjustment voltage.
  • the voltage adjustment unit further includes a second operational amplifier, a third resistor, a fourth resistor, a fifth resistor, and a sixth resistor, wherein:
  • the first end of the fifth resistor is used to input the second reference voltage, and the second end of the fifth resistor is electrically connected to the negative input end of the second operational amplifier and the first end of the third resistor. one end,
  • the second end of the third resistor is electrically connected to the output end of the second operational amplifier and the first end of the fourth resistor
  • the forward input end of the second operational amplifier is electrically connected to the first end of the sixth resistor, and the second end of the sixth resistor is grounded,
  • the second end of the fourth resistor is used for outputting the second adjustment voltage.
  • the first voltage conversion unit is further configured to output the first reference voltage and/or the second reference voltage.
  • the power module further includes:
  • a second voltage conversion unit configured to obtain the first reference voltage and/or the second reference voltage according to the input voltage.
  • the power module includes:
  • the number of the third voltage conversion unit corresponds to the number of the target display area, and each third voltage conversion unit corresponds to each target area,
  • Each third voltage conversion unit is configured to acquire the first terminal voltage of the corresponding target display area, and use the first terminal voltage to generate the first adjustment voltage;
  • Each third voltage conversion unit is further configured to acquire the second terminal voltage of the corresponding target display area, and use the second terminal voltage to generate the second adjustment voltage.
  • the power module further includes:
  • the number of the fourth voltage conversion units corresponds to the number of the target display area
  • the first voltage conversion unit is further configured to control each fourth voltage conversion unit to output the first adjustment voltage and/or the second adjustment voltage
  • the first voltage conversion unit and the at least one fourth voltage conversion unit are configured in a master-slave operating mode, and the first voltage conversion unit and the at least one fourth voltage conversion unit are electrically connected through a control bus.
  • the first voltage conversion unit is further configured to acquire the first terminal voltage of each target display area, and use the first terminal voltage to control the corresponding fourth voltage conversion unit to output the first terminal voltage - adjust the voltage;
  • the first voltage conversion unit is further configured to acquire the second terminal voltage of each target display area, and use the second terminal voltage to control the corresponding fourth voltage conversion unit to output the second adjustment voltage.
  • the first power supply voltage is a positive voltage
  • the second power supply voltage is a negative voltage
  • the display panel includes any one or more of LEDs, MiniLEDs, MicroLEDs, and OLEDs.
  • an electronic device which includes the display driving apparatus.
  • the electronic device includes a display, a smart phone or a portable device.
  • the embodiment of the present disclosure outputs a first adjustment voltage and/or a second adjustment voltage for a target display area whose distance is greater than a preset distance, so as to use the first adjustment voltage to emit light in the target display area Adjusting the voltage of the first terminal of the transistor and/or adjusting the voltage of the second terminal by using the second adjustment voltage can make the display brightness of each area of the display panel uniform, and can improve the display effect.
  • FIG. 1 shows a schematic diagram of a display driving apparatus according to an embodiment of the present disclosure.
  • FIG. 2 shows a schematic diagram of a display driving apparatus according to an embodiment of the present disclosure.
  • FIG. 3 shows a schematic diagram of a display driving apparatus according to an embodiment of the present disclosure.
  • FIG. 4 shows a schematic diagram of a display driving apparatus according to an embodiment of the present disclosure.
  • FIG. 1 is a schematic diagram of a display driving apparatus according to an embodiment of the present disclosure.
  • the device includes:
  • the power supply module 10 is used for outputting the first power supply voltage 201 and the second power supply voltage 202;
  • the display panel 20 includes a power supply interface electrically connected to the power supply module, the power supply interface is used for inputting the first power supply voltage 201 and the second power supply voltage 202, and the display panel includes a plurality of light-emitting transistors (Fig. 1 is not shown), the first end of each light-emitting transistor is used for receiving the first power supply voltage, and the second end of each light-emitting transistor is used for receiving the second power supply voltage, and the display panel 20 according to the light-emitting transistor
  • the distance from the power interface is divided into a plurality of display areas, each display area including one or more light-emitting transistors;
  • the power module 10 is further configured to output the first adjustment voltage 203 and/or the second adjustment voltage 205 for the target display area whose distance is greater than the preset distance, so as to use the first adjustment voltage 203 to control the target display area.
  • the first terminal voltage of the light emitting transistor in the display area is adjusted and/or the second terminal voltage is adjusted by using the second adjustment voltage 205 .
  • the embodiment of the present disclosure outputs a first adjustment voltage and/or a second adjustment voltage for a target display area whose distance is greater than a preset distance, so as to use the first adjustment voltage to emit light in the target display area Adjusting the voltage of the first terminal of the transistor and/or adjusting the voltage of the second terminal by using the second adjustment voltage can make the display brightness of each area of the display panel uniform, and can improve the display effect.
  • the apparatuses in the embodiments of the present disclosure may be various electronic devices with display functions, also referred to as user equipment (UE), mobile station (MS), mobile terminal (MT), etc.
  • UE user equipment
  • MS mobile station
  • MT mobile terminal
  • a device that provides voice and/or data connectivity to a user eg, a handheld device with wireless connectivity, an in-vehicle device, etc.
  • terminals are: mobile phone (mobile phone), tablet computer, notebook computer, PDA, mobile internet device (MID), wearable device, virtual reality (virtual reality, VR) device, augmented reality (augmentedreality (AR) equipment, wireless terminals in industrial control, wireless terminals in self-driving, wireless terminals in remote medical surgery, wireless terminals in smart grid , wireless terminal in transportation safety, wireless terminal in smart city, wireless terminal in smart home, wireless terminal in car networking, etc.
  • the display panel includes LED (Light Emitting Diode, light emitting diode), MiniLED (Mini Light Emitting Diode, mini light emitting diode), MicroLED (Micro Light Emitting Diode, micro light emitting diode), OLED ( Any one or more of Organic Light-Emitting Diode, organic light-emitting diode).
  • LED Light Emitting Diode, light emitting diode
  • MiniLED Mini Light Emitting Diode, mini light emitting diode
  • MicroLED Micro Light Emitting Diode, micro light emitting diode
  • OLED Any one or more of Organic Light-Emitting Diode, organic light-emitting diode.
  • the display transistors in each display area of the display panel usually receive the first power supply voltage and the second power supply voltage through the power supply interface to obtain the driving capability.
  • the driving capability of the display area will become lower and lower, that is, there will be a voltage difference between the area close to the power interface and the area far from the power interface, which will cause the display brightness of the display area far from the power interface to be lower than that of the display area close to the power interface. Display brightness.
  • the traces on the printed circuit board PCBA in the display panel will cause the resistance of the far end (display area far from the power interface) to increase, so the voltage of the far end will be significantly lower than that of the near end.
  • terminal display area close to the power interface
  • the display area 1 can be regarded as The near-end, display area 4, display area k, display area k+1, etc. belong to the far-end.
  • the display area k is used as the far-end, and the first power supply voltage 201 and the second power supply voltage 202 are transmitted from the power interface.
  • the voltage will be lower, so the power supply voltage received by each transistor in the display area k will be lower than the power supply voltage received by the display area 1, which will lead to the display area k.
  • the display brightness of display area 1 is uneven, and the display effect is poor, which affects the look and feel.
  • the embodiment of the present disclosure divides the display panel into multiple regions, and outputs the first adjustment voltage and/or the second adjustment voltage for the target display region whose distance is greater than the preset distance according to the distance between each region and the power interface. voltage, so as to use the first adjustment voltage to adjust the first terminal voltage of the light-emitting transistor in the target display area and/or use the second adjustment voltage to adjust the second terminal voltage, so that each The display brightness of the area is uniform, which can improve the display effect.
  • each region may include the same number of display transistors, and in some other implementation manners, the number of display transistors in each region may also be different.
  • each display area may include multiple display transistors.
  • the embodiment of the present disclosure can uniformly adjust the driving voltages of multiple display transistors in the target display area with a distance greater than a preset distance, thereby improving adjustment efficiency. .
  • each display area may include one display transistor.
  • the embodiment of the present disclosure can individually adjust the driving voltage of the display transistors in each target display area with a distance greater than a preset distance, thereby improving adjustment accuracy.
  • the first power supply voltage is a positive voltage
  • the second power supply voltage is a negative voltage
  • the power module can adjust the voltage of the first terminal or the voltage of the second terminal of the target display area, and can also adjust the voltage of the first terminal and the second terminal at the same time, so as to realize the display of the target
  • the adjustment of the drive voltage of the transistor is shown in the area.
  • FIG. 2 is a schematic diagram of a display driving apparatus according to an embodiment of the present disclosure.
  • the power module 10 may include:
  • the first voltage conversion unit 110 is configured to obtain the first power supply voltage and the second power supply voltage according to the input voltage.
  • the first voltage conversion unit 110 may include an AC-DC converter AC/DC, a DC-DC converter DC/DC, which can convert the input AC power into the required DC power, or convert the input DC power into the required DC power. Direct current required.
  • the power module 10 may further include:
  • the voltage adjustment unit 120 is configured to output the first adjustment voltage according to the first reference voltage, and/or output the second adjustment voltage according to the second reference voltage.
  • the first reference voltage and the second reference voltage may be set in advance.
  • the corresponding reference voltage may be set according to the adjustment voltage required by each area of the display panel.
  • the source of the reference voltage may include multiple kind.
  • the first voltage conversion unit 110 may also be configured to output the first reference voltage and/or the second reference voltage.
  • the first voltage conversion unit 110 may generate the first reference voltage and/or the second reference voltage according to voltage parameters set in advance, and input the first reference voltage and/or the second reference voltage to the voltage adjustment unit 120.
  • the power module may further include:
  • the second voltage conversion unit 130 is configured to obtain the first reference voltage and/or the second reference voltage according to the input voltage.
  • the second voltage converting unit 130 may include an AC-DC converter AC/DC, a DC-DC converter DC/DC, and can convert the input AC power into the required DC power, or convert the input DC power into the required DC power. Direct current required.
  • the second voltage conversion unit 130 may generate the first reference voltage and/or the second reference voltage according to a voltage parameter set in advance, and input the first reference voltage and/or the second reference voltage to the voltage adjustment unit 120 .
  • the number of the voltage adjustment units 120 may correspond to the number of display areas to be adjusted, or may be set to be greater than or equal to the total number of display areas in the display panel, which is not limited in this embodiment of the present disclosure.
  • each voltage adjustment unit 120 can be distributed on the PCBA board of the display panel, and can be arranged at specific positions of the PCBA as required.
  • the power interface is at the upper left end of the PCBA, then the voltage adjustment units can be arranged in sequence from left to right Arrange multiple, or arrange multiple from top to bottom.
  • the embodiment of the present disclosure does not limit the specific position where the voltage adjustment unit 120 is arranged on the display panel.
  • the voltage adjustment unit 120 may include a first operational amplifier OP1, a first resistor R1, and a second resistor R2, wherein:
  • the positive input terminal of the first operational amplifier OP1 is used to input the first reference voltage
  • the negative input terminal of the first operational amplifier OP1 is electrically connected to the second terminal of the first resistor R1
  • the The output end of the first operational amplifier OP1 is electrically connected to the second end of the first resistor R1 and the first end of the second resistor R2,
  • the second end of the second resistor R2 is used for outputting the first adjustment voltage.
  • the embodiment of the present disclosure can determine the size of the first resistor R1, the second resistor R2, and the parameters of the first operational amplifier according to the size of the adjustment voltage required by each target display area, so as to realize the generation of the first reference voltage.
  • the first adjustment voltage is used to adjust the first power supply voltage of the corresponding target display area.
  • the voltage adjustment unit 120 may further include a second operational amplifier OP2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, and a sixth resistor R6 ,in:
  • the first end of the fifth resistor R5 is used to input the second reference voltage, and the second end of the fifth resistor R5 is electrically connected to the negative input end of the second operational amplifier OP2 and the third The first end of resistor R3,
  • the second end of the third resistor R3 is electrically connected to the output end of the second operational amplifier OP2 and the first end of the fourth resistor R4,
  • the forward input end of the second operational amplifier OP2 is electrically connected to the first end of the sixth resistor R6, and the second end of the sixth resistor R6 is grounded,
  • the second end of the fourth resistor R4 is used for outputting the second adjustment voltage.
  • the embodiment of the present disclosure may determine the sizes of the third resistor R3 , the fourth resistor R4 , the fifth resistor R5 , the sixth resistor R6 , and the voltage of the second operational amplifier according to the size of the adjustment voltage required by each target display area. parameters, so that the second reference voltage is used to generate the second adjustment voltage, so as to adjust the second power supply voltage of the corresponding target display area.
  • the voltage adjustment unit 120 can adjust the power supply voltage of the corresponding display area in the display panel, for example, display
  • display The region may include display transistors LEDN1 to LEDNM and display transistors LED11 to LED1M, wherein N and M are integers greater than or equal to 1.
  • the first adjustment voltage can be input to the positive electrode of each display transistor in the display area
  • the second adjustment voltage can be input to the negative electrode of each display transistor in the display area, so that the positive driving voltage (first power supply voltage) and negative driving voltage of each display transistor are adjusted. Adjustment (second supply voltage).
  • FIG. 3 is a schematic diagram of a display driving apparatus according to an embodiment of the present disclosure.
  • the power module 10 may further include:
  • the number of the third voltage conversion units 140 corresponds to the number of the target display area, and each third voltage conversion unit 140 corresponds to each target area,
  • Each third voltage conversion unit 140 is configured to acquire the first terminal voltage of the corresponding target display area, and use the first terminal voltage to generate the first adjustment voltage; and/or
  • Each third voltage conversion unit 140 is further configured to acquire the second terminal voltage of the corresponding target display area, and use the second terminal voltage to generate the second adjustment voltage.
  • the third voltage conversion unit 140 may include an AC-DC converter AC/DC, a DC-DC converter DC/DC, which can convert the input AC power into the required DC power, or convert the input DC power Convert to required DC power.
  • Each third voltage conversion unit in the embodiment of the present disclosure determines the corresponding adjustment voltage by acquiring the feedback voltage information (the first terminal voltage and the second terminal voltage) corresponding to the target display area, so as to realize the precise driving voltage of each target display area. Moreover, the adjustment of the corresponding target display area through the independent third voltage conversion unit has strong pertinence, and the adjustment is more accurate, fast and efficient.
  • FIG. 4 is a schematic diagram of a display driving apparatus according to an embodiment of the present disclosure.
  • the power module 10 may further include:
  • the number of the fourth voltage conversion units 150 corresponds to the number of the target display area
  • the first voltage conversion unit 110 may also be configured to control each fourth voltage conversion unit to output the first adjustment voltage and/or the second adjustment voltage,
  • the first voltage conversion unit 110 and the at least one fourth voltage conversion unit 150 are configured in a master-slave operation mode, and the first voltage conversion unit and the at least one fourth voltage conversion unit are electrically connected through a control bus.
  • the fourth voltage converting unit 150 may include an AC-DC converter AC/DC, a DC-DC converter DC/DC, which can convert the input AC power into the required DC power, or convert the input DC power Convert to required DC power.
  • the first voltage conversion unit 110 may act as a master to control a plurality of fourth voltage conversion units 150 as slaves.
  • the first voltage conversion unit 110 may also implement the capability of synchronously controlling the magnitude of the output current. For example, assuming that the current and voltage of each fourth voltage conversion unit 150 are required to control the voltage and current to be consistent throughout the application process, it is possible to It is collectively controlled by the first voltage conversion unit 110 .
  • each area of the display panel should have the same voltage and current, so specific values can be set through internal registers, or special values can be set according to panel characteristics, and transmitted to the fourth voltage conversion unit 150 through communication protocols such as I2C or ISP.
  • the first voltage conversion unit is further configured to acquire the first terminal voltage of each target display area, and use the first terminal voltage to control the corresponding fourth voltage conversion unit to output the first terminal voltage - adjust the voltage;
  • the first voltage conversion unit is further configured to acquire the second terminal voltage of each target display area, and use the second terminal voltage to control the corresponding fourth voltage conversion unit to output the second adjustment voltage.
  • the first voltage conversion unit can either control each fourth voltage conversion unit to output the adjusted voltage or adjusted current through preset voltage parameters or current parameters, or can obtain the first terminal voltage and the second terminal voltage of the target display area by means of feedback. voltage or current information, so as to control each fourth voltage conversion unit to output the adjusted voltage or the adjusted current according to the obtained feedback information.
  • the power supply voltage of each display area can be adjusted quickly and accurately. , which can significantly increase the uniformity of panel brightness, especially as the panel size increases.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Control Of El Displays (AREA)

Abstract

一种显示驱动装置及电子设备，装置包括：电源模块（10），用于输出第一电源电压（201）和第二电源电压（202）；显示面板（20），包括电连接于电源模块（10）的电源接口；电源模块（10），还用于针对距离大于预设距离的目标显示区域，输出第一调整电压（203）和/或第二调整电压（205），以利用第一调整电压（203）对目标显示区域中发光晶体管的第一端电压进行调整和/或利用第二调整电压（205）对第二端电压进行调整。通过以上装置，利用第一调整电压（203）对目标显示区域中发光晶体管的第一端电压进行调整和/或利用第二调整电压（205）对第二端电压进行调整，可以使得显示面板（20）的各个区域的显示亮度均一，可以提高显示效果。

Description

显示驱动装置及电子设备 技术领域
本公开涉及显示技术领域，尤其涉及一种显示驱动装置及电子设备。
背景技术
随着科学技术的不断发展，越来越多的具有显示功能的电子设备被广泛的应用于人们的日常生活以及工作当中，为人们如日常生活以及工作带来了巨大的便利，成为当今人们不可或缺的重要工具。电子设备实现显示功能的重要部件是显示面板，然而，现有的显示面板的不同区域由于驱动能力的问题，存在亮度不均的问题，随着显示面板的尺寸越来越大，显示面板各个区域的亮度差异越来越大，显示效果越来越差。
发明内容
有鉴于此，本公开提出了一种显示驱动装置，所述装置包括：
电源模块，用于输出第一电源电压和第二电源电压；
显示面板，包括电连接于所述电源模块的电源接口，所述电源接口用于输入所述第一电源电压和所述第二电源电压，所述显示面板包括多个发光晶体管，每个发光晶体管的第一端用于接收所述第一电源电压，每个发光晶体管的第二端用于接收所述第二电源电压，所述显示面板按照发光晶体管与所述电源接口的距离被划分为多个显示区域，每个显示区域包括一个或多个发光晶体管；
所述电源模块，还用于针对所述距离大于预设距离的目标显示区域，输出第一调整电压和/或第二调整电压，以利用所述第一调整电压对所述目标显示区域中发光晶体管的第一端电压进行调整和/或利用所述第二调整电压对第二端电压进行调整。
在一种可能的实施方式中，所述电源模块包括：
第一电压转换单元，用于根据输入的电压得到所述第一电源电压和所述第二电源电压。
在一种可能的实施方式中，所述电源模块还包括：
电压调整单元，用于根据第一参考电压输出所述第一调整电压，和/或，根据第二参考电压输出所述第二调整电压。
在一种可能的实施方式中，所述电压调整单元，包括第一运算放大器、第一电阻、第二电阻，其中：
所述第一运算放大器的正向输入端用于输入所述第一参考电压，所述第一运算放大器的负向输入端电连接于所述第一电阻的第二端，所述第一运算放大器的输出端电连接于所述第一电阻的第二端及所述第二电阻的第一端，
所述第二电阻的第二端用于输出所述第一调整电压。
在一种可能的实施方式中，所述电压调整单元，还包括第二运算放大器、第三电阻、第四电阻、第五电阻、第六电阻，其中：
所述第五电阻的第一端用于输入所述第二参考电压，所述第五电阻的第二端电连接于所述第二运算放大器的负向输入端及所述第三电阻的第一端，
所述第三电阻的第二端电连接于所述第二运算放大器的输出端及所述第四电阻的第一端，
所述第二运算放大器的正向输入端电连接于所述第六电阻的第一端，所述第六电阻的第二端接地，
所述第四电阻的第二端用于输出所述第二调整电压。
在一种可能的实施方式中，所述第一电压转换单元还用于输出所述第一参考电压和/或所述第二参考电压。
在一种可能的实施方式中，所述电源模块还包括：
第二电压转换单元，用于根据输入的电压得到所述第一参考电压和/或所述第二参考电压。
在一种可能的实施方式中，所述电源模块包括：
至少一个第三电压转换单元，所述第三电压转换单元的数目与所述目标 显示区域的数目对应，且各个第三电压转换单元与各个目标区域对应，
各个第三电压转换单元用于获取对应的目标显示区域的第一端电压，利用所述第一端电压产生所述第一调整电压；和/或
各个第三电压转换单元还用于获取对应的目标显示区域的第二端电压，利用所述第二端电压产生所述第二调整电压。
在一种可能的实施方式中，所述电源模块还包括：
至少一个第四电压转换单元，所述第四电压转换单元的数目与所述目标显示区域的数目对应；
所述第一电压转换单元还用于控制各个第四电压转换单元输出所述第一调整电压和/或所述第二调整电压，
其中，所述第一电压转换单元及至少一个第四电压转换单元被配置为主从工作模式，所述第一电压转换单元与所述至少一个第四电压转换单元通过控制总线电连接。
在一种可能的实施方式中，所述第一电压转换单元还用于获取各个目标显示区域的第一端电压，并利用所述第一端电压控制对应的第四电压转换单元输出所述第一调整电压；和/或
所述第一电压转换单元还用于获取各个目标显示区域的第二端电压，并利用所述第二端电压控制对应的第四电压转换单元输出所述第二调整电压。
在一种可能的实施方式中，所述第一电源电压为正电压，所述第二电源电压为负电压。
在一种可能的实施方式中，所述显示面板包括LED、MiniLED、MicroLED、OLED的任意一种或多种。
根据本公开的另一方面，提出了一种电子设备，所述电子设备包括所述的显示驱动装置。
在一种可能的实施方式中，所述电子设备包括显示器、智能手机或便携设备。
通过以上装置，本公开实施例针对所述距离大于预设距离的目标显示区域，输出第一调整电压和/或第二调整电压，以利用所述第一调整电压对所述目标显示区域中发光晶体管的第一端电压进行调整和/或利用所述第二调整电压对第二端电压进行调整，可以使得显示面板的各个区域的显示亮度均一，可以提高显示效果。
根据下面参考附图对示例性实施例的详细说明，本公开的其它特征及方面将变得清楚。
附图说明
包含在说明书中并且构成说明书的一部分的附图与说明书一起示出了本公开的示例性实施例、特征和方面，并且用于解释本公开的原理。
图1示出了根据本公开一实施例的显示驱动装置的示意图。
图2示出了根据本公开一实施例的显示驱动装置的示意图。
图3示出了根据本公开一实施例的显示驱动装置的示意图。
图4示出了根据本公开一实施例的显示驱动装置的示意图。
具体实施方式
以下将参考附图详细说明本公开的各种示例性实施例、特征和方面。附图中相同的附图标记表示功能相同或相似的元件。尽管在附图中示出了实施例的各种方面，但是除非特别指出，不必按比例绘制附图。
在这里专用的词“示例性”意为“用作例子、实施例或说明性”。这里作为“示例性”所说明的任何实施例不必解释为优于或好于其它实施例。
另外，为了更好的说明本公开，在下文的具体实施方式中给出了众多的具体细节。本领域技术人员应当理解，没有某些具体细节，本公开同样可以实施。在一些实例中，对于本领域技术人员熟知的方法、手段、元件和电路未作详细描述，以便于凸显本公开的主旨。
请参阅图1，图1示出了根据本公开一实施例的显示驱动装置的示意图。
如图1所示，所述装置包括：
电源模块10，用于输出第一电源电压201和第二电源电压202；
显示面板20，包括电连接于所述电源模块的电源接口，所述电源接口用于输入所述第一电源电压201和所述第二电源电压202，所述显示面板包括多个发光晶体管(图1未示出)，每个发光晶体管的第一端用于接收所述第一电源电压，每个发光晶体管的第二端用于接收所述第二电源电压，所述显示面板20按照发光晶体管与所述电源接口的距离被划分为多个显示区域，每个显示区域包括一个或多个发光晶体管；
所述电源模块10，还用于针对所述距离大于预设距离的目标显示区域，输出第一调整电压203和/或第二调整电压205，以利用所述第一调整电压203对所述目标显示区域中发光晶体管的第一端电压进行调整和/或利用所述第二调整电压205对第二端电压进行调整。
通过以上装置，本公开实施例针对所述距离大于预设距离的目标显示区域，输出第一调整电压和/或第二调整电压，以利用所述第一调整电压对所述目标显示区域中发光晶体管的第一端电压进行调整和/或利用所述第二调整电压对第二端电压进行调整，可以使得显示面板的各个区域的显示亮度均一，可以提高显示效果。
本公开实施例的装置可以是各种具备显示功能的电子设备，又称之为用户设备(user equipment，UE)、移动台(mobile station，MS)、移动终端(mobile terminal，MT)等，是一种向用户提供语音和/或数据连通性的设备，例如，具有无线连接功能的手持式设备、车载设备等。目前，一些终端的举例为：手机(mobile phone)、平板电脑、笔记本电脑、掌上电脑、移动互联网设备(mobile internetdevice，MID)、可穿戴设备，虚拟现实(virtual reality，VR)设备、增强现实(augmentedreality，AR)设备、工业控制(industrial control)中的无线终端、无人驾驶(selfdriving)中的无线终端、远程手术(remote medical surgery)中的无线终端、智能电网(smart grid)中的无线终端、运输安全(transportation safety)中的无线终端、智慧城市(smart city)中的无线终端、智慧家庭(smart home)中的无线终端、车联网中的无线终端等。
在一种可能的实现方式中，所述显示面板包括LED(Light Emitting Diode， 发光二极管)、MiniLED(Mini Light Emitting Diode，迷你发光二极管)、MicroLED(Micro Light Emitting Diode，微发光二极管)、OLED(Organic Light-Emitting Diode,有机发光二极管)的任意一种或多种。
在一个示例中，显示面板的各个显示区域中的显示晶体管通常是通过电源接口接收第一电源电压、第二电源电压从而获得驱动能力，随着距离电源接口越来越远，显示面板远离电源接口的显示区域的驱动能力会越来越低，即靠近电源接口的区域与远离电源接口的区域会存在电压差，这会导致远离电源接口的显示区域的显示亮度低于靠近电源接口的显示区域的显示亮度。
随着显示面板的尺寸越来越大，显示面板中印制电路板PCBA上的走线会导致远端(远离电源接口的显示区域)电阻增大，因此，远端的电压会明显低于近端(靠近电源接口的显示区域)，例如，假设显示面板的电源接口在图1所示的左上角，即接收第一电源电压201和第二电源电压202的位置，则显示区域1可以视为近端，显示区域4、显示区域k、显示区域k+1等属于远端，以显示区域k为例，显示区域k作为远端，第一电源电压201、第二电源电压202从电源接口传输至显示区域k时，由于PCBA中走线存在电阻，会出现电压较低的现象，因此显示区域k中各个晶体管接收的电源电压会低于显示区域1接收的电源电压，这样会导致显示区域k和显示区域1的显示亮度存在不均问题，显示效果较差，影响观感。
因此，本公开实施例通过将显示面板划分为多个区域，并根据各个区域距离电源接口的距离，针对所述距离大于预设距离的目标显示区域，输出第一调整电压和/或第二调整电压，以利用所述第一调整电压对所述目标显示区域中发光晶体管的第一端电压进行调整和/或利用所述第二调整电压对第二端电压进行调整，可以使得显示面板的各个区域的显示亮度均一，可以提高显示效果。
在一种可能的实施方式中，在对显示面板进行区域划分时，各个区域可以包括相同数目的显示晶体管，在其他的一些实施方式中，各个区域中的显示晶体管数目也可以不同。
在一个示例中，每个显示区域中可以包括多个显示晶体管，这样，本公开实施例可以对距离大于预设距离的目标显示区域中的多个显示晶体管的驱动电压进行统一调整，提高调整效率。
在一个示例中，每个显示区域中可以包括1个显示晶体管，这样，本公开实施例可以对各个距离大于预设距离的目标显示区域中的显示晶体管的驱动电压进行单独调整，提高调整精度。
在一种可能的实施方式中，所述第一电源电压为正电压，所述第二电源电压为负电压。
在一个示例中，电源模块可以对目标显示区域的第一端电压进行调节或对第二端电压进行调节，也可以对的第一端电压、第二端电压进行同时调节，从而实现对目标显示区域中显示晶体管的驱动电压的调整。
请参阅图2，图2示出了根据本公开一实施例的显示驱动装置的示意图。
在一种可能的实施方式中，如图2所示，所述电源模块10可以包括：
第一电压转换单元110，用于根据输入的电压得到所述第一电源电压和所述第二电源电压。
在一个示例中，第一电压转换单元110可以包括交流-直流转换器AC/DC、直流-直流转换器DC/DC，可以实现将输入的交流电转换为需要的直流电，或者将输入的直流电转换为需要的直流电。
在一种可能的实施方式中，如图2所示，所述电源模块10还可以包括：
电压调整单元120，用于根据第一参考电压输出所述第一调整电压，和/或，根据第二参考电压输出所述第二调整电压。
在一个示例中，第一参考电压、第二参考电压可以是提前设置的，例如，可以根据显示面板的各个区域所需的调整电压大小设置对应的参考电压，当然，参考电压的来源可以包括多种。
在一种可能的实施方式中，所述第一电压转换单元110还可以用于输出所述第一参考电压和/或所述第二参考电压。
在一个示例中，第一电压转换单元110可以根据提前设置的电压参数产 生所述第一参考电压和/或第二参考电压，并输入到电压调整单元120中。
在一种可能的实施方式中，如图2所示，所述电源模块还可以包括：
第二电压转换单元130，用于根据输入的电压得到所述第一参考电压和/或所述第二参考电压。
在一个示例中，第二电压转换单元130可以包括交流-直流转换器AC/DC、直流-直流转换器DC/DC，可以实现将输入的交流电转换为需要的直流电，或者将输入的直流电转换为需要的直流电。
在一个示例中，第二电压转换单元130可以根据提前设置的电压参数产生所述第一参考电压和/或第二参考电压，并输入到电压调整单元120中。
在一个示例中，电压调整单元120的数目可以与需要调整的显示区域的数目对应，也可以设置为大于或等于显示面板中显示区域的总数，对此，本公开实施例不做限制。
在一个示例中，各个电压调整单元120可以分布在显示面板的PCBA板子上面，可以按需求排布在PCBA的具体位置，比如电源接口在PCBA的左上端，那么电压调整单元可以依次从左到右布置多个，或从上到下布置多个。本公开实施例对电压调整单元120布置在显示面板的具体位置不做限定。
在一种可能的实施方式中，如图2所示，所述电压调整单元120，可以包括第一运算放大器OP1、第一电阻R1、第二电阻R2，其中：
所述第一运算放大器OP1的正向输入端用于输入所述第一参考电压，所述第一运算放大器OP1的负向输入端电连接于所述第一电阻R1的第二端，所述第一运算放大器OP1的输出端电连接于所述第一电阻R1的第二端及所述第二电阻R2的第一端，
所述第二电阻R2的第二端用于输出所述第一调整电压。
在一个示例中，本公开实施例可以根据各个目标显示区域需要的调整电压的大小确定第一电阻R1、第二电阻R2的大小，及第一运算放大器的参数，从而实现利用第一参考电压产生第一调整电压，以对相应的目标显示区域的第一电源电压进行调整。
在一种可能的实施方式中，如图2所示，所述电压调整单元120，还可以包括第二运算放大器OP2、第三电阻R3、第四电阻R4、第五电阻R5、第六电阻R6，其中：
所述第五电阻R5的第一端用于输入所述第二参考电压，所述第五电阻R5的第二端电连接于所述第二运算放大器OP2的负向输入端及所述第三电阻R3的第一端，
所述第三电阻R3的第二端电连接于所述第二运算放大器OP2的输出端及所述第四电阻R4的第一端，
所述第二运算放大器OP2的正向输入端电连接于所述第六电阻R6的第一端，所述第六电阻R6的第二端接地，
所述第四电阻R4的第二端用于输出所述第二调整电压。
在一个示例中，本公开实施例可以根据各个目标显示区域需要的调整电压的大小确定第三电阻R3、第四电阻R4、第五电阻R5、第六电阻R6的大小，及第二运算放大器的参数，从而实现利用第二参考电压产生第二调整电压，以对相应的目标显示区域的第二电源电压进行调整。
在一个示例中，如图2所示，当电压调整单元120得到第一调整电压和/或第二调整电压后，即可对显示面板中的响应的显示区域的电源电压进行调整，例如，显示区域中可以包括显示晶体管LEDN1～LEDNM，及显示晶体管LED11～LED1M，其中，N，M为大于或等于1的整数。第一调整电压可以输入到显示区域中各个显示晶体管的正极，第二调整电压可以输入到显示区域各个显示晶体管的负极，从而对各个显示晶体管的正极驱动电压(第一电源电压)、负极驱动电压进行调整(第二电源电压)。
以上介绍了对显示面板的目标显示区域的电源电压的实现方式，本公开不限于此，下面对其他可能的实现方式进行介绍。
请参阅图3，图3示出了根据本公开一实施例的显示驱动装置的示意图。
在一种可能的实施方式中，如图3所示，所述电源模块10还可以包括：
至少一个第三电压转换单元140，所述第三电压转换单元140的数目与所 述目标显示区域的数目对应，且各个第三电压转换单元140与各个目标区域对应，
各个第三电压转换单元140用于获取对应的目标显示区域的第一端电压，利用所述第一端电压产生所述第一调整电压；和/或
各个第三电压转换单元140还用于获取对应的目标显示区域的第二端电压，利用所述第二端电压产生所述第二调整电压。
在一个示例中，所述第三电压转换单元140可以包括交流-直流转换器AC/DC、直流-直流转换器DC/DC，可以实现将输入的交流电转换为需要的直流电，或者将输入的直流电转换为需要的直流电。
本公开实施例的各个第三电压转换单元通过获取对应目标显示区域的反馈电压信息(第一端电压、第二端电压)确定对应的调整电压，可以实现对各个目标显示区域的驱动电压的精确调整，并且，通过独立的第三电压转换单元对相应地目标显示区域进行调整，具有较强的针对性，调整更加准确、快速、高效。
请参阅图4，图4示出了根据本公开一实施例的显示驱动装置的示意图。
在一种可能的实施方式中，如图4所示，所述电源模块10还可以包括：
至少一个第四电压转换单元150，所述第四电压转换单元150的数目与所述目标显示区域的数目对应；
所述第一电压转换单元110还可以用于控制各个第四电压转换单元输出所述第一调整电压和/或所述第二调整电压，
其中，所述第一电压转换单元110及至少一个第四电压转换单元150被配置为主从工作模式，所述第一电压转换单元与所述至少一个第四电压转换单元通过控制总线电连接。
在一个示例中，所述第四电压转换单元150可以包括交流-直流转换器AC/DC、直流-直流转换器DC/DC，可以实现将输入的交流电转换为需要的直流电，或者将输入的直流电转换为需要的直流电。
在一个示例中，第一电压转换单元110可以作为主机控制作为从机的多 个第四电压转换单元150。
在一个示例中，第一电压转换单元110还可以实现同步控制输出电流大小的能力，比如假设要求每一个第四电压转换单元150电流电压要在整个应用的过程都要控制电压电流一致，就可以由第一电压转换单元110来统一控制。显示面板理论上每个区域应该要电压电流一致，所以可以通过内部的寄存器设置好具体的值，也可以根据面板特性设置特殊值，通过I2C或者ISP等通信协议传输给第四电压转换单元150。
在一种可能的实施方式中，所述第一电压转换单元还用于获取各个目标显示区域的第一端电压，并利用所述第一端电压控制对应的第四电压转换单元输出所述第一调整电压；和/或
所述第一电压转换单元还用于获取各个目标显示区域的第二端电压，并利用所述第二端电压控制对应的第四电压转换单元输出所述第二调整电压。
第一电压转换单元既可以通过预设的电压参数或电流参数控制各个第四电压转换单元输出调整电压或调整电流，也可以通过反馈的方式，获取目标显示区域的第一端电压、第二端电压，或者电流信息，从而根据获取的反馈信息，控制各个第四电压转换单元输出调整电压或调整电流。
通过以上方式，本公开实施例通过将第一电压转换单元、第四电压转换单元配置为主从工作模式，可以快速、准确地实现对各个显示区域的电源电压的调整，本公开的各个实现方式，能明显增加面板亮度的均一度，尤其随着面板尺寸增加效果会更加明显。
以上已经描述了本公开的各实施例，上述说明是示例性的，并非穷尽性的，并且也不限于所披露的各实施例。在不偏离所说明的各实施例的范围和精神的情况下，对于本技术领域的普通技术人员来说许多修改和变更都是显而易见的。本文中所用术语的选择，旨在最好地解释各实施例的原理、实际应用或对市场中的技术的改进，或者使本技术领域的其它普通技术人员能理解本文披露的各实施例。

Claims (14)

  1. 一种显示驱动装置，其特征在于，所述装置包括：
    电源模块，用于输出第一电源电压和第二电源电压；
    显示面板，包括电连接于所述电源模块的电源接口，所述电源接口用于输入所述第一电源电压和所述第二电源电压，所述显示面板包括多个发光晶体管，每个发光晶体管的第一端用于接收所述第一电源电压，每个发光晶体管的第二端用于接收所述第二电源电压，所述显示面板按照发光晶体管与所述电源接口的距离被划分为多个显示区域，每个显示区域包括一个或多个发光晶体管；
    所述电源模块，还用于针对所述距离大于预设距离的目标显示区域，输出第一调整电压和/或第二调整电压，以利用所述第一调整电压对所述目标显示区域中发光晶体管的第一端电压进行调整和/或利用所述第二调整电压对第二端电压进行调整。
  2. 根据权利要求1所述的装置，其特征在于，所述电源模块包括：
    第一电压转换单元，用于根据输入的电压得到所述第一电源电压和所述第二电源电压。
  3. 根据权利要求2所述的装置，其特征在于，所述电源模块还包括：
    电压调整单元，用于根据第一参考电压输出所述第一调整电压，和/或，根据第二参考电压输出所述第二调整电压。
  4. 根据权利要求3所述的装置，其特征在于，所述电压调整单元，包括第一运算放大器、第一电阻、第二电阻，其中：
    所述第一运算放大器的正向输入端用于输入所述第一参考电压，所述第一运算放大器的负向输入端电连接于所述第一电阻的第二端，所述第一运算放大器的输出端电连接于所述第一电阻的第二端及所述第二电阻的第一端，
    所述第二电阻的第二端用于输出所述第一调整电压。
  5. 根据权利要求3或4所述的装置，其特征在于，所述电压调整单元，还包括第二运算放大器、第三电阻、第四电阻、第五电阻、第六电阻，其中：
    所述第五电阻的第一端用于输入所述第二参考电压，所述第五电阻的第 二端电连接于所述第二运算放大器的负向输入端及所述第三电阻的第一端，
    所述第三电阻的第二端电连接于所述第二运算放大器的输出端及所述第四电阻的第一端，
    所述第二运算放大器的正向输入端电连接于所述第六电阻的第一端，所述第六电阻的第二端接地，
    所述第四电阻的第二端用于输出所述第二调整电压。
  6. 根据权利要求3所述的装置，其特征在于，所述第一电压转换单元还用于输出所述第一参考电压和/或所述第二参考电压。
  7. 根据权利要求3所述的装置，其特征在于，所述电源模块还包括：
    第二电压转换单元，用于根据输入的电压得到所述第一参考电压和/或所述第二参考电压。
  8. 根据权利要求1或2所述的装置，其特征在于，所述电源模块包括：
    至少一个第三电压转换单元，所述第三电压转换单元的数目与所述目标显示区域的数目对应，且各个第三电压转换单元与各个目标区域对应，
    各个第三电压转换单元用于获取对应的目标显示区域的第一端电压，利用所述第一端电压产生所述第一调整电压；和/或
    各个第三电压转换单元还用于获取对应的目标显示区域的第二端电压，利用所述第二端电压产生所述第二调整电压。
  9. 根据权利要求2所述的装置，其特征在于，所述电源模块还包括：
    至少一个第四电压转换单元，所述第四电压转换单元的数目与所述目标显示区域的数目对应；
    所述第一电压转换单元还用于控制各个第四电压转换单元输出所述第一调整电压和/或所述第二调整电压，
    其中，所述第一电压转换单元及至少一个第四电压转换单元被配置为主从工作模式，所述第一电压转换单元与所述至少一个第四电压转换单元通过控制总线电连接。
  10. 根据权利要求9所述的装置，其特征在于，所述第一电压转换单元还 用于获取各个目标显示区域的第一端电压，并利用所述第一端电压控制对应的第四电压转换单元输出所述第一调整电压；和/或
    所述第一电压转换单元还用于获取各个目标显示区域的第二端电压，并利用所述第二端电压控制对应的第四电压转换单元输出所述第二调整电压。
  11. 根据权利要求1所述的显示驱动装置，其特征在于，所述第一电源电压为正电压，所述第二电源电压为负电压。
  12. 根据权利要求1所述的装置，其特征在于，所述显示面板包括LED、MiniLED、MicroLED、OLED的任意一种或多种。
  13. 一种电子设备，其特征在于，所述电子设备包括如权利要求1～11任一项所述的显示驱动装置。
  14. 根据权利要求13所述的电子设备，其特征在于，所述电子设备包括显示器、智能手机或便携设备。
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11990088B2 (en) 2020-10-20 2024-05-21 Chipone Technology (Beijing) Co., Ltd. Display driving device and electronic apparatus

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110018787A1 (en) * 2009-07-22 2011-01-27 Hitachi Displays, Ltd. Display device
CN105468063A (zh) * 2016-01-04 2016-04-06 京东方科技集团股份有限公司 电源电压控制电路、方法、驱动集成电路和显示装置
CN105761679A (zh) * 2014-12-30 2016-07-13 乐金显示有限公司 控制器、有机发光显示面板、有机发光显示装置及其驱动方法
KR20190023859A (ko) * 2017-08-30 2019-03-08 엘지디스플레이 주식회사 표시장치와 이의 구동방법
CN110021267A (zh) * 2019-03-07 2019-07-16 京东方科技集团股份有限公司 显示面板的亮度均一性补偿方法及装置
CN110444164A (zh) * 2019-08-16 2019-11-12 京东方科技集团股份有限公司 一种显示装置的调试方法及调试装置
CN111341270A (zh) * 2018-12-18 2020-06-26 奇景光电股份有限公司 用于补偿显示面板的亮度不均的方法以及显示装置
CN112164368A (zh) * 2020-10-20 2021-01-01 北京集创北方科技股份有限公司 显示驱动装置及电子设备

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4757623B2 (ja) * 2005-12-21 2011-08-24 パナソニック株式会社 電源回路
KR100850206B1 (ko) * 2006-12-26 2008-08-04 삼성전자주식회사 액정 표시 장치 및 그 화질 개선 방법
WO2012001990A1 (ja) * 2010-07-02 2012-01-05 パナソニック株式会社 表示装置およびその駆動方法
CN103137072B (zh) * 2013-03-14 2015-05-20 京东方科技集团股份有限公司 外部补偿感应电路及其感应方法、显示装置
KR102346523B1 (ko) * 2015-01-27 2022-01-04 삼성디스플레이 주식회사 데이터 보상 장치 및 이를 포함하는 표시 장치
CN104809988B (zh) * 2015-05-18 2016-06-29 京东方科技集团股份有限公司 一种oled阵列基板及显示面板、显示装置
CN205680029U (zh) * 2016-01-04 2016-11-09 京东方科技集团股份有限公司 电源电压控制电路、驱动集成电路和显示装置
CN106128359A (zh) * 2016-09-06 2016-11-16 昆山国显光电有限公司 Oled 显示装置及其亮度补偿方法
KR102648417B1 (ko) * 2016-12-30 2024-03-18 엘지디스플레이 주식회사 유기 발광 다이오드 표시 장치
CN106816137B (zh) * 2017-04-13 2019-09-27 京东方科技集团股份有限公司 显示装置及增加该显示装置亮度均一性的方法
CN107994056A (zh) * 2017-11-21 2018-05-04 武汉华星光电半导体显示技术有限公司 显示面板及具有该显示面板的显示装置
CN109377947A (zh) * 2018-12-13 2019-02-22 武汉华星光电半导体显示技术有限公司 显示装置及其驱动方法
CN111383603B (zh) * 2018-12-31 2022-10-11 乐金显示有限公司 亮度补偿装置及使用该亮度补偿装置的电致发光显示器
CN109802562A (zh) * 2019-03-22 2019-05-24 北京集创北方科技股份有限公司 电压调节系统

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110018787A1 (en) * 2009-07-22 2011-01-27 Hitachi Displays, Ltd. Display device
CN105761679A (zh) * 2014-12-30 2016-07-13 乐金显示有限公司 控制器、有机发光显示面板、有机发光显示装置及其驱动方法
CN105468063A (zh) * 2016-01-04 2016-04-06 京东方科技集团股份有限公司 电源电压控制电路、方法、驱动集成电路和显示装置
KR20190023859A (ko) * 2017-08-30 2019-03-08 엘지디스플레이 주식회사 표시장치와 이의 구동방법
CN111341270A (zh) * 2018-12-18 2020-06-26 奇景光电股份有限公司 用于补偿显示面板的亮度不均的方法以及显示装置
CN110021267A (zh) * 2019-03-07 2019-07-16 京东方科技集团股份有限公司 显示面板的亮度均一性补偿方法及装置
CN110444164A (zh) * 2019-08-16 2019-11-12 京东方科技集团股份有限公司 一种显示装置的调试方法及调试装置
CN112164368A (zh) * 2020-10-20 2021-01-01 北京集创北方科技股份有限公司 显示驱动装置及电子设备

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11990088B2 (en) 2020-10-20 2024-05-21 Chipone Technology (Beijing) Co., Ltd. Display driving device and electronic apparatus

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