WO2021203822A1 - 显示装置、电子设备及显示方法 - Google Patents

显示装置、电子设备及显示方法 Download PDF

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Publication number
WO2021203822A1
WO2021203822A1 PCT/CN2021/075291 CN2021075291W WO2021203822A1 WO 2021203822 A1 WO2021203822 A1 WO 2021203822A1 CN 2021075291 W CN2021075291 W CN 2021075291W WO 2021203822 A1 WO2021203822 A1 WO 2021203822A1
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WO
WIPO (PCT)
Prior art keywords
pixel layer
power
layer
electrically connected
input
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Application number
PCT/CN2021/075291
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English (en)
French (fr)
Inventor
崔志佳
杨乐
叶成亮
Original Assignee
Oppo广东移动通信有限公司
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Application filed by Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Publication of WO2021203822A1 publication Critical patent/WO2021203822A1/zh

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    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control 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
    • G09G3/22Control 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
    • G09G3/30Control 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
    • G09G3/32Control 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]
    • G09G3/3208Control 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]
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00Control of display operating conditions
    • G09G2320/02Improving the quality of display appearance
    • G09G2320/0233Improving the luminance or brightness uniformity across the screen
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00Control of display operating conditions
    • G09G2320/02Improving the quality of display appearance
    • G09G2320/0257Reduction of after-image effects

Definitions

  • This application relates to the field of electronic technology, in particular to a display device, electronic equipment and a display method.
  • the electronic device can use its display device to display pictures.
  • the embodiments of the present application provide a display device, an electronic device, and a display method, which can solve the technical problem of inconsistent wear and tear of display elements in different regions of the display device due to inconsistent working hours, and thus the afterimage phenomenon of the display device.
  • an embodiment of the present application provides a display device, including:
  • a first display area the first display area including a first pixel layer
  • a second display area where the second display area includes a second pixel layer
  • a power management chip is electrically connected to the first pixel layer and the second pixel layer, respectively;
  • a drive control chip the drive control chip is electrically connected to the power management chip, and the drive control chip is used to control the power management chip to provide a first power supply voltage to the first pixel layer and to provide a first power supply voltage to the second pixel layer
  • the layer provides a second power supply voltage, so that the brightness of the first pixel layer is the same as the brightness of the second pixel layer.
  • an embodiment of the present application also provides an electronic device, including a display device and a circuit board, the circuit board is electrically connected to the display device, and the circuit board is used to control the display device to display information;
  • the display device includes:
  • a first display area the first display area including a first pixel layer
  • a second display area where the second display area includes a second pixel layer
  • a power management chip is electrically connected to the first pixel layer and the second pixel layer, respectively;
  • a drive control chip the drive control chip is electrically connected to the power management chip, and the drive control chip is used to control the power management chip to provide a first power supply voltage to the first pixel layer and to provide a first power supply voltage to the second pixel layer
  • the layer provides a second power supply voltage, so that the brightness of the first pixel layer is the same as the brightness of the second pixel layer.
  • an embodiment of the present application also provides a display method, which is applied in an electronic device, the electronic device includes a display device and a circuit board, the circuit board is electrically connected to the display device, and the circuit board is used for To control the display device to display information; the display device includes:
  • a first display area the first display area including a first pixel layer
  • a second display area where the second display area includes a second pixel layer
  • a power management chip is electrically connected to the first pixel layer and the second pixel layer, respectively;
  • a drive control chip the drive control chip is electrically connected to the power management chip, and the drive control chip is used to control the power management chip to provide a first power supply voltage to the first pixel layer and to provide a first power supply voltage to the second pixel layer
  • the layer provides a second power supply voltage, so that the brightness of the first pixel layer is the same as the brightness of the second pixel layer;
  • the display method includes:
  • the first power supply voltage is provided to the first pixel layer, and the second power supply voltage is provided to the second pixel layer, so that the brightness of the first pixel layer is the same as that of the second pixel layer.
  • the brightness of the pixel layer is the same.
  • FIG. 1 is a schematic diagram of the first structure of a display device provided by an embodiment of the application.
  • FIG. 2 is a schematic diagram of the first display state of the display device provided by an embodiment of the application.
  • FIG. 3 is a schematic diagram of a second display state of the display device provided by an embodiment of the application.
  • FIG. 4 is a schematic diagram of a second structure of a display device provided by an embodiment of the application.
  • FIG. 5 is a schematic diagram of a circuit principle of a display device provided by an embodiment of the application.
  • FIG. 6 is a schematic diagram of a third structure of a display device provided by an embodiment of the application.
  • FIG. 7 is a schematic diagram of a fourth structure of a display device provided by an embodiment of the application.
  • FIG. 8 is a schematic diagram of a fifth structure of a display device provided by an embodiment of the application.
  • FIG. 9 is a schematic structural diagram of an electronic device provided by an embodiment of this application.
  • FIG. 10 is a schematic flowchart of the first display method provided by an embodiment of the application.
  • FIG. 11 is a first brightness attenuation curve diagram of the display device provided by an embodiment of the application.
  • FIG. 12 is a first display state change diagram of the display device provided by an embodiment of the application.
  • FIG. 13 is a second type of brightness attenuation curve diagram of the display device provided by an embodiment of the application.
  • FIG. 14 is a second display state change diagram of the display device provided by an embodiment of the application.
  • FIG. 15 is a schematic diagram of the second flow of the display method provided by an embodiment of the application.
  • FIG. 16 is a schematic flowchart of a third display method provided by an embodiment of this application.
  • FIG. 17 is a schematic diagram of a fourth flow of a display method provided by an embodiment of this application.
  • the embodiments of the present application provide a display device, an electronic device, and a display method.
  • the execution subject of the display method may be the display device provided in the embodiment of the present application, or an electronic device integrated with the display device, wherein the display device may be implemented in hardware or software.
  • electronic equipment can be mobile terminal equipment such as mobile phones and tablet computers, as well as game equipment, augmented reality (AR) equipment, virtual reality (Virtual Reality, VR) equipment, vehicle-mounted computers, laptop computers, and data storage devices.
  • FIG. 1 is a schematic diagram of a first structure of a display device provided by an embodiment of this application
  • FIG. 2 is a schematic diagram of a first display state of the display device provided by an embodiment of this application.
  • the display device 100 provided by the embodiment of the present application may include a power management chip 10, a drive control chip 20, a first display area 30 and a second display area 40 connected to each other, wherein the first display area 30 Both the second display area 40 and the second display area 40 can be used to display text or images.
  • the first display area 30 includes a first pixel layer 31 and the second display area 40 includes a second pixel layer 41.
  • the power management chip 10 is electrically connected to the first pixel layer 31 and the second pixel layer 41
  • the drive control chip 20 is electrically connected to the power management chip 10
  • the drive control chip 20 is used to control the power management chip 10 to provide the first pixel layer 31
  • the first power supply voltage the drive control chip 20 is also used to control the power management chip 10 to provide the second power supply voltage to the second pixel layer 41, so that the brightness of the first pixel layer 31 and the brightness of the second pixel layer 41 are the same.
  • the first display area 30 and the second display area 40 may be two different display areas in the flexible folding screen.
  • FIG. 2 in conjunction with FIG. 3, where FIG. 3 is a schematic diagram of the second display state of the display device according to an embodiment of the present application.
  • the flexible folding screen is in an unfolded state, as shown in FIG. 2, the first display area 30 and the second display area 40 are connected to each other and can display images together.
  • the flexible folding screen is in a folded state, as shown in FIG. 3, at least one of the first display area 30 and the second display area 40 can display an image.
  • the first display area 30 and the second display area 40 may also be two different display areas in the display device 100.
  • FIG. 4 is a schematic diagram of the second structure of the display device provided by an embodiment of the application.
  • the first display area 30 may be arranged around the second display area 40, and the periphery of the second display area 40 may all be adjacent to the first display area 30.
  • the second display area 40 can be used to dynamically or statically display time, weather, application messages, etc. in the off-screen display. That is, the second display area 40 can be used for off-screen display alone, and the second display area 40 can also be used for on-screen display together with the first display area 30.
  • the second display area 40 may be located in the middle of the first display area 30.
  • the first display area 30 may also partially surround the second display area 40, and a part of the edge of the second display area 40 is adjacent to the first display area 30.
  • the corners of the first display area 30 may also have an irregular shape, such as a gap, and the second display area 40 may be located in the gap.
  • first display area 30 and the second display area 40 in the embodiment of the present application are not limited to the above examples. Others, there are the first display area 30 and the second display area 40 in the display device 100. The scheme is also within the scope of protection of this application.
  • the first display area 30 and the second display area 40 can display the same image together.
  • the first display area 30 displays a part of the preset image
  • the second display area 40 displays the remaining part of the preset image.
  • the first display area 30 and the second display area 40 may also display different images.
  • the first display area 30 displays a preset image
  • the second display area 40 displays a task bar image.
  • the first display area 30 and the second display area 40 can work at the same time to display the same or different images.
  • one of the first display area 30 and the second display area 40 can display information while the other does not display any information.
  • the first display area 30 and the second display area 40 can display images together; when the flexible folding screen is in the folded state or the display device 100 is in the off-screen state In the display state, one of the first display area 30 and the second display area 40 can display information while the other does not work, thereby realizing partial display of the display device 100.
  • the pixel unit in the display area will have the problem of brightness attenuation after a period of operation, so that the brightness of the pixel unit will attenuate as the operating time of the display area increases.
  • the working time of the local display area is much longer than that of the non-local display area, and the brightness of the pixel unit in the local display area is less than the brightness of the pixel unit in the non-local display area.
  • the power management chip 10 is electrically connected to the first pixel layer 31 in the first display area 30 and the second pixel layer 41 in the second display area 40, and the drive control chip 20 controls the power supply.
  • the management chip 10 provides a first power supply voltage to the first pixel layer 31 and a second power supply voltage to the second pixel layer 41. Based on this, since the power supply voltage can affect the brightness of the first pixel layer 31 and the second pixel layer 41, the relative relationship between the first power supply voltage and the second power supply voltage can be adjusted to compensate for the first pixel in the first display area 30.
  • the brightness difference between the layer 31 and the second pixel layer 41 in the second display area 40 makes the brightness of the first pixel layer 31 the same as the brightness of the second pixel layer 41, and the first display area 30 and the second display area 40 will not exist
  • the obvious boundary avoids the afterimage phenomenon between display areas caused by the large difference in the wear of display elements, and the display effect of the display device 100 is better.
  • the first pixel layer 31 in the first display area 30 and the second pixel layer 41 in the second display area 40 may include at least one pixel, and the pixel may be an organic light-emitting diode (Organic Light-Emitting Diode). Diode referred to as OLED), under the action of voltage, OLED can be lit and emit light of different colors.
  • OLED Organic Light-Emitting Diode
  • FIG. 5 is a schematic diagram of the circuit principle of the display device provided by an embodiment of the application.
  • the display device 100 of the embodiment of the present application may include at least one driving unit, and one driving unit is electrically connected to at least one pixel.
  • One of the driving units may include at least two thin film transistors (TFTs for short) T1 and T2, and a capacitor C1. As shown in FIG. 5, the gate of T1 is electrically connected to the scan signal Scan, and the source level of T1 is electrically connected.
  • TFTs thin film transistors
  • the drain of T1 is electrically connected to the gate of T2 and one end of the capacitor C1; the drain of T2 is electrically connected to the positive pole of the external power supply (ELVDD), and the source of T2 is electrically connected to the anode of the OLED and the cathode of the OLED It is electrically connected to the negative electrode of the external power supply (ELVSS); one end of the capacitor C1 is electrically connected to the drain of T1 and the gate of T2, and the other end of the capacitor C1 is electrically connected to the drain of T2 and the positive electrode of the external power supply (ELVDD).
  • EVSS negative electrode of the external power supply
  • the scan signal Scan controls T1 to open, and the data signal Data enters the gate of T2 and the capacitor C1 through T1, and then T1 is closed. Due to the storage effect of C1, The gate voltage of T2 can still continue to maintain the data signal voltage, so that T2 is in an on state, and the driving current enters the OLED through T2 to drive the OLED to emit light. Furthermore, under the control of the driving unit, the pixels of the display device 100 can be lighted up. Moreover, when the voltage difference between the positive electrode and the negative electrode of the external power supply is greater, the brightness of the pixel point is higher, and the brightness of the pixel point is often proportional to the pressure difference.
  • FIG. 6 is a schematic diagram of a third structure of a display device provided in an embodiment of this application
  • FIG. 7 is a schematic diagram of a fourth structure of a display device provided in an embodiment of this application.
  • the display device 100 of the embodiment of the present application further includes a first power input layer 32, a second power input layer 42, a first power input line 33, a second power input line 43, and a positive input power source 51.
  • the first power input layer 32 and the first power input line 33 are located in the first display area 30, the second power input layer 42 and the second power input line 43 are located in the second display area 40, and the positive input power source 51 is also located in the first display area.
  • the first power input layer 32 is arranged on one side of the first pixel layer 31, and the second power input layer 42 is arranged on one side of the second pixel layer 41.
  • the positive input power source 51 is arranged on the other side of the first pixel layer 31 and the second pixel layer 41, and the first pixel layer 31 and the second pixel layer 41 are arranged on the positive input power source 51 and the first power input layer 32 and the second pixel layer. Between the power input layer 42.
  • the first pixel layer 31 and the second pixel layer 41 may be in the same layer, and the first power input layer 32 and the second power input layer 42 may also be in the same layer. From the appearance point of view, the inner and outer surfaces of the first pixel layer 31 and the second pixel layer 41 can be flat and form a whole, and the inner and outer surfaces of the first power input layer 32 and the second power input layer 42 can also be flat and form a whole. overall.
  • the first power input line 33 may be arranged on the periphery of the first power input layer 32, and the second power input line 43 may be arranged on the periphery of the second power input layer 42.
  • the first power input line 33 may be provided on the left and right sides of the first power input layer 32
  • the second power input line 43 may be provided on the left and right sides of the second power input layer 42.
  • the first pixel layer 31 and the second pixel layer 41 can be formed on the same substrate by evaporation and other processes, and the first power input layer 32 and the second power input layer 42 can also be formed on the same substrate. It is formed on the same substrate through processes such as film formation, exposure, and etching.
  • the upper part can be packaged, and then the polarizer can be attached and the first A power input line 33, a second power input line 43 and other control lines are bonded to the chip through various processes, and finally a complete display device 100 is prepared.
  • the first power input layer 32 and the second power input layer 42 are laid on one side of the first pixel layer 31 and the second pixel layer 41, the first power input layer 32 can directly contact the first pixel layer 31 and realize Electrically connected to the pixel points on the first pixel layer 31, the second power input layer 42 may also directly contact the second pixel layer 41 and realize electrical connection with the pixel points on the second pixel layer 41, and further, the first The power input layer 32 and the second power input layer 42 do not need to be electrically connected to the pixels through wires, which can reduce the display influence of the wires on the pixels.
  • the first power input layer 32 can be electrically connected to the negative electrode of the power management chip 10 through the first power input line 33.
  • the power management chip 10, the first power input line 33, the first power input layer 32, and the A pixel layer 31 and the positive input power source 51 can form a current loop to make the first pixel layer 31 emit light.
  • the second power input layer 42 can be electrically connected to the negative electrode of the power management chip 10 through the second power input line 43.
  • the layer 41 and the positive input power source 51 can form another current loop to make the second pixel layer 41 emit light.
  • first power input line 33 is arranged on the periphery of the first power input layer 32 and the second power input line 43 is arranged on the periphery of the second power input layer 42, the first power input line 33 and the second power input can also be reduced.
  • Line 43 affects the display of pixels.
  • the substrate formed by the first power input layer 32 and the second power input layer 42 may also be provided with a first connection point 34 and a second connection point 44, wherein the first power input line 33 can pass through the
  • the first connection point 34 is electrically connected to the negative electrode of the power management chip 10, and the power management chip 10 can provide the first power supply voltage to the first power input layer 32 through the first connection point 34 and the first power input line 33;
  • the input line 43 can be electrically connected to the negative electrode of the power management chip 10 through the second connection point 44, and the power management chip 10 can provide a second power input layer 42 to the second power input layer 42 through the second connection point 44 and the second power input line 43. Supply voltage.
  • first power input line 33 and the second power input line 43 are generally Multiple first power input lines 33 may be electrically connected to the negative electrode of the power management chip 10 through a first connection point 34, and multiple second power input lines 43 may be electrically connected to the power management through a second connection point 44 The negative electrode of the chip 10 is electrically connected, thereby reducing the difficulty of wiring between multiple power input lines and the power management chip 10.
  • the number of the first connection point 34 and the second connection point 44 can be set to two so as to correspond to the first power input line 33 and the second power input line 43 on the left and right sides.
  • the first power input line 33 on the left can be connected to the first connection point 34 on the left
  • the first power input line 33 on the right can be connected to the first connection point 34 on the right; in the same way, the left side
  • the second power input line 43 can be connected to the second connection point 44 on the left
  • the second power input line 43 on the right can be connected to the second connection point 44 on the right.
  • the connection point and the connection point can be avoided. Cross-connect.
  • the two first connection points 34 can be arranged on the outer side of the two second connection points 44. Accordingly, the first power input line 33 on the same side can also be arranged on the outer side of the second power input line 43 to further avoid The first power input line 33 and the second power input line 43 are cross-connected.
  • the power management chip 10 is connected to the first display area 30 through the first connection point 34, the first power input line 33, and the first power input layer 32.
  • the pixel points in the first pixel layer 31 provide a negative first supply voltage (ELVSS1).
  • the power management chip 10 provides a negative second power supply voltage (ELVSS2) to the pixels in the second pixel layer 41 of the second display area 40 through the second connection point 44, the second power input line 43, and the second power input layer 42 .
  • the anodes of the pixel points in the first pixel layer 31 and the anodes of the pixel points in the second pixel layer 41 are all electrically connected to the positive input power source 51, and the positive input power source 51 is supplied to the first pixel layer 31 and the second pixel layer 41.
  • the pixels provide the same positive voltage (ELVDD).
  • the drive control chip 20 can control the power management chip 10 to provide the first power supply voltage (ELVSS1) to the first pixel layer 31 and provide the second power supply to the second pixel layer 41 Voltage (ELVSS2).
  • the first power supply voltage (ELVSS1) can be the same as the second power supply voltage (ELVSS2).
  • the positive electrode voltage (ELVDD) of the positive input power supply 51 is constant, at this time, the voltage difference between the two ends of the first pixel layer 31 and the second pixel The voltage difference between the two ends of the layer 41 is equal.
  • the brightness attenuation degree of the first pixel layer 31 and the second pixel layer 41 are the same, the brightness of the first pixel layer 31 and the brightness of the second pixel layer 41 are also the same. Since the voltage difference between the two ends of the pixel layer can affect the brightness of the pixel, if the brightness attenuation degree of the first pixel layer 31 and the second pixel layer 41 is inconsistent, then the first power supply voltage (ELVSS1) can be adjusted to be the same as the second power supply voltage. (ELVSS2) so that the brightness of the first pixel layer 31 and the brightness of the second pixel layer 41 are equal.
  • the drive control chip 20 may be electrically connected to the power management chip 10 through the input and output interface 60. Furthermore, the drive control chip 20 may transmit the control chip to the power management chip 10, and the power management chip 10 may also transmit the current first power supply voltage of the first pixel layer 31 and the current second power supply voltage of the second pixel layer 41 to The drive control chip 20 realizes bidirectional control between the drive control chip 20 and the power management chip 10.
  • FIG. 8 is a schematic diagram of the fifth structure of the display device provided by an embodiment of the application.
  • the display device 100 of the embodiment of the present application may further include a first input power source 35, a second input power source 45, and a negative input power source layer 52.
  • the first input power source 35 is located in the first display area 30
  • the second input power source 45 is located in the second display area 40
  • the negative input power layer 52 is located in the first display area 30 and the second display area 40 at the same time.
  • the negative input power supply layer 52 may be located on one side of the first pixel layer 31 and the second pixel layer 41 and cover one side of the first pixel layer 31 and the second pixel layer 41.
  • the first input power source 35 can be provided on the other side of the first pixel layer 31 and the second input power source 45 can also be provided on the other side of the second pixel layer 41, and the first pixel layer 31 and the second pixel layer 41 can be It is arranged between the negative input power supply layer 52 and the first input power supply 35 and the second input power supply 45. From the appearance point of view, the first input power source 35 and the second input power source 45 may be on the same layer, that is, the inner and outer surfaces of the first input power source 35 and the second input power source 45 may be flat and formed as a whole.
  • the first input power source 35 and the second input power source 45 can be formed on the same substrate through processes such as cleaning, surface treatment, photolithography, film formation, exposure, and etching.
  • the upper part can be packaged, and then the polarizer can be attached and the control circuit Various processes, such as bonding with the chip, finally produce a complete display device 100.
  • the first input power source 35 can be electrically connected to the anode of the first pixel layer 31 and the anode of the power management chip 10 through a conductive material such as a power input line.
  • a pixel layer 31 and a negative input power supply layer 52 can form a current loop to make the first pixel layer 31 emit light.
  • the second input power 45 can also be electrically connected to the anode of the second pixel layer 41 and the anode of the power management chip 10 through a conductive material such as a power input line.
  • the power management chip 10 and the second input power 45 The second pixel layer 41 and the negative input power supply layer 52 can form another current loop to make the second pixel layer 41 emit light.
  • the drive control chip 20 can control the power management chip 10 to provide the first power supply voltage (ELVDD1) to the first input power 35, and the drive control chip 20 can also control the power management chip 10.
  • the second supply voltage (ELVDD2) is provided to the second input power source 45, so that the brightness of the first pixel layer 31 and the second pixel layer 41 are the same.
  • the first supply voltage (ELVDD1) can be the same as the second supply voltage (ELVDD2).
  • the negative electrode voltage (ELVSS) of the negative input power layer 52 is constant, at this time, the voltage difference between the two ends of the first pixel layer 31 and the second The voltage difference between the two ends of the pixel layer 41 is the same.
  • the brightness of the first pixel layer 31 and the second pixel layer 41 are also the same. Since the voltage difference between the two ends of the pixel layer can affect the brightness of the pixel, if the brightness attenuation degree of the first pixel layer 31 and the second pixel layer 41 is inconsistent, the first power supply voltage (ELVDD1) can be adjusted to be the same as the second power supply voltage. (ELVDD2) so that the brightness of the first pixel layer 31 and the brightness of the second pixel layer 41 are equal.
  • the brightness of the first display area 30 including the first pixel layer 31 and the brightness of the second pixel layer 41 can be adjusted.
  • the brightness of the second display area 40 is the same, and there is no obvious boundary between the first display area 30 and the second display area 40, which avoids the phenomenon of image sticking between the display areas caused by the large difference in the wear of the display elements.
  • the display effect of 100 is better.
  • the drive control chip 20 may also be electrically connected to the first pixel layer 31 and the second pixel layer 41, the drive control chip 20 may transmit the data signal Data1 of the first voltage to the first pixel layer 31, and the drive control chip 20 may also The data signal Data2 of the second voltage is transmitted to the second pixel layer 41.
  • the first voltage can be equal to the second voltage
  • the first voltage can also be different from the second voltage
  • the magnitude of the first voltage and the second voltage can be the same as the brightness of the first pixel layer 31 and the second pixel layer 41. Attenuation is related.
  • the magnitude of the first voltage and the second voltage can be made the same. For example, when the brightness attenuation value of the first pixel layer 31 is greater than the brightness attenuation value of the second pixel layer 41, the first voltage may be greater than the second voltage, so that the current brightness of the first pixel layer 31 is equal to that of the second pixel layer 41. The current brightness is the same.
  • the brightness of the first display area 30 including the first pixel layer 31 and the brightness of the second display area 40 including the second pixel layer 41 are adjusted.
  • the above-mentioned display device 100 of the embodiment of the present application may be an organic light-emitting diode display (Organic Light-Emitting Diode, OLED).
  • the display device 100 may be a full screen. At this time, the display device 100 can display information in a full screen, so that the electronic device 1000 has a larger screen-to-body ratio.
  • the display device 100 may also include only the display area, but not the non-display area, or the area of the non-display area is small for the user.
  • electronic devices such as cameras and proximity sensors in the electronic device 1000 can be hidden under the display device 100, and the fingerprint recognition module of the electronic device 1000 can be arranged on the back cover 600 of the electronic device 1000.
  • FIG. 9 is a schematic structural diagram of an electronic device provided by an embodiment of the application.
  • the electronic device 1000 of the present application may also include a cover 200, a middle frame 300, a circuit board 400, a battery 500, a back cover 600 and other components.
  • the cover 200 may be installed on the middle frame 300, and the cover 200 covers the display device 100 to protect the display device 100 and prevent the display device 100 from being scratched or damaged by water.
  • the cover 200 may be a transparent glass cover 200 so that the user can observe the content displayed by the display device 100 through the cover 200.
  • the cover 200 may be a glass cover 200 made of sapphire.
  • the display device 100 may be installed on the middle frame 300 and connected to the back cover 600 through the middle frame 300 to form the display surface of the electronic device 1000.
  • the display device 100 can be used as a front shell of the electronic device 1000, and together with the back cover 600 form a housing of the electronic device 1000 for accommodating other electronic devices of the electronic device 1000.
  • the housing may be used to accommodate electronic devices such as a processor, a memory, one or more sensors, and lighting elements of the electronic device 1000.
  • the middle frame 300 may have a thin plate or sheet-like structure, or a hollow frame structure.
  • the middle frame 300 is used to provide support for the electronic devices in the electronic device 1000, so as to install the electronic devices and the electronic devices in the electronic device 1000 together.
  • the lighting components, receivers, circuit board 400, battery 500 and other electronic devices in the electronic device 1000 can all be mounted on the middle frame 300 for fixing.
  • the circuit board 400 may be installed on the middle frame 300.
  • the circuit board 400 may be the main board of the electronic device 1000.
  • the circuit board 400 may be integrated with one of a microphone, a speaker, a receiver, a headphone interface, a universal serial bus interface (USB interface), a camera assembly, a distance sensor, an ambient light sensor, a gyroscope, a processor and other electronic devices, Two or more.
  • the display device 100 can be electrically connected to the circuit board 400 to control the display of the display device 100 through a processor on the circuit board 400.
  • the circuit board 400 can be used to control the display device 100 to display information such as images and text.
  • the battery 500 may be installed on the middle frame 300. At the same time, the battery 500 is electrically connected to the circuit board 400 so that the battery 500 can supply power to the electronic device 1000.
  • the power management chip 10 can be arranged on the circuit board 400. The power management chip 10 may be used to distribute the voltage provided by the battery 500 to various electronic devices in the electronic device 1000.
  • the battery 500 may be a rechargeable battery 500.
  • the battery 500 may be a lithium ion battery 500.
  • the back cover 600 is located on the side of the circuit board 400 away from the display device 100, that is, the back cover 600 is located at the outermost part of the electronic device 1000 and is used to form the outer contour of the electronic device 1000.
  • the back cover 600 may be integrally formed. During the molding process of the back cover 600, a rear camera hole, a fingerprint recognition module mounting hole, and other structures may be formed on the back cover 600.
  • the back cover 600 may be made of metal, such as magnesium alloy, stainless steel and other metals. It should be noted that the material of the back cover 600 in the embodiment of the present application is not limited to this, and other methods may also be used.
  • the back cover 600 may be made of plastic material.
  • the back cover 600 may be made of ceramic or glass.
  • the back cover 600 may include a plastic part and a metal part, and the back cover 600 may be a shell structure in which metal and plastic cooperate with each other.
  • the metal part can be formed first, for example, a magnesium alloy substrate is formed by injection molding, and plastic is then injected on the magnesium alloy substrate to form a plastic substrate to form a complete shell structure.
  • an embodiment of the present application also provides a display method, which is applied in the above-mentioned electronic device 1000.
  • the electronic device 1000 includes a display device 100 and a circuit board 400, and the circuit board 400 is electrically connected to the display device 100.
  • the circuit board 400 is used to control the display device 100 to display information;
  • the display device 100 includes: a first display area 30, the first display area 30 includes a first pixel layer 31; a second display area 40, the second display area 40 includes a second Pixel layer 41; power management chip 10, the power management chip 10 is electrically connected to the first pixel layer 31 and the second pixel layer 41, respectively; the drive control chip 20, the drive control chip 20 is electrically connected to the power management chip 10, and the drive control chip 20 It is used to control the power management chip 10 to provide the first power supply voltage to the first pixel layer 31 and the second power supply voltage to the second pixel layer 41, so that the brightness of the first pixel layer 31 and the brightness of the second pixel layer 41 are the same;
  • Display methods include:
  • the first display area 30 further includes: a first power input layer 32, the first power input layer 32 is disposed on one side of the first pixel layer 31, the first power input layer 32 and the first pixel layer 31 The cathode is electrically connected; and the first power input line 33, the first power input line 33 is provided on the periphery of the first power input layer 32, the first power input layer 32 through the first power input line 33 and the negative electrode of the power management chip 10 Electrically connected; the second display area 40 also includes: a second power input layer 42, the second power input layer 42 is arranged on one side of the second pixel layer 41, the second power input layer 42 and the cathode of the second pixel layer 41 Connected; and the second power input line 43, the second power input line 43 is provided on the periphery of the second power input layer 42, the second power input layer 42 is electrically connected to the negative electrode of the power management chip 10 through the second power input line 43.
  • providing the first power supply voltage to the first pixel layer 31 and providing the second power supply voltage to the second pixel layer 41 includes: driving the control chip 20 to control the power management chip 10 through the first power input line 33 and The first power input layer 32 provides a first power supply voltage to the first pixel layer 31; the drive control chip 20 controls the power management chip 10 to provide a second power supply voltage to the second pixel layer 41 through the second power input line 43 and the second power input layer 42 Supply voltage.
  • the first display area 30 further includes: a first input power source 35, which is electrically connected to the anode of the first pixel layer 31, and the first input power source 35 is also electrically connected to the anode of the power management chip 10.
  • the second display area 40 also includes: a second input power source 45, which is electrically connected to the anode of the second pixel layer 41, and the second input power source 45 is also electrically connected to the anode of the power management chip 10.
  • providing the first power supply voltage to the first pixel layer 31 and providing the second power supply voltage to the second pixel layer 41 includes: the drive control chip 20 controls the power management chip 10 to supply the first pixel via the first input power 35 The layer 31 provides the first power supply voltage; the drive control chip 20 controls the power management chip 10 to provide the second power supply voltage to the second pixel layer 41 through the second input power 45.
  • the driving control chip 20 is electrically connected to the first pixel layer 31 and the second pixel layer 41, respectively. If not, providing the first power supply voltage to the first pixel layer 31 and providing the second power supply voltage to the second pixel layer 41 includes: the drive control chip 20 transmits the data signal of the first voltage to the first pixel layer 31 and uses it together Then, the data signal of the second voltage is transmitted to the second pixel layer 41.
  • FIG. 10 is a schematic flowchart of the first display method provided by an embodiment of the application.
  • the display method of the embodiment of the present application can be applied to the above-mentioned display device 100 and the electronic device 1000, and the display method includes:
  • a first correspondence between the working time of the first pixel layer and the display brightness is set, and a second correspondence between the working time of the second pixel layer and the display brightness is set.
  • the display device 100 Due to the inherent characteristics of the display device 100, there will be a problem of brightness attenuation after the display area is operated for a period of time, so that the brightness of the pixel units in the display area will attenuate as the operating time of the display area increases. According to the characteristics of the attenuation relationship between the working time and the brightness, the first correspondence between the working time of the first pixel layer 31 and the display brightness can be determined, and the second correspondence between the working time of the second pixel layer 41 and the display brightness can be determined.
  • the attenuation relationship between working time and brightness can be used to prepare the first brightness attenuation curve of the first pixel layer 31 and the second brightness attenuation curve of the second pixel layer 41.
  • the attenuation relationship between the working time and the brightness may be used to prepare a mapping table between the working time of the first pixel layer 31 and the display brightness, and a mapping table between the working time of the second pixel layer 41 and the display brightness, etc.
  • the following takes the preparation of the first brightness attenuation curve of the first pixel layer 31 and the second brightness attenuation curve of the second pixel layer 41 as an example for description.
  • FIG. 11 is a first brightness attenuation curve diagram of the display device provided by an embodiment of the application. Since the brightness attenuation conditions of the pixel units in the same batch are basically the same, other pixel units in the same batch as the pixel units in the first pixel layer 31 can be used to prepare the brightness attenuation curve of the first pixel layer 31. Similarly, other pixel units in the same batch as the pixel units in the second pixel layer 41 can be used to prepare the brightness attenuation curve of the second pixel layer 41.
  • the curve S1 represents the brightness decay curve of the first pixel layer 31 in the first display area 30, and the curve S2 represents the brightness decay curve of the second pixel layer 41 in the second display area 40.
  • the brightness attenuation of a pixel unit is usually related to the characteristics of the pixel unit, and the brightness attenuation curve of different pixel units may be different.
  • the working time is m
  • the brightness a of the first pixel layer 31 is less than the brightness A of the second pixel layer 41
  • the working time is 2m
  • the brightness b of the first pixel layer 31 is less than that of the second pixel layer.
  • the brightness of 41 is B, and the difference between the brightness a and the brightness b is much larger than the difference between the brightness A and the brightness B. It can be seen that as the working time increases, the brightness attenuation degree of the first pixel layer 31 will be much greater than the brightness attenuation degree of the second pixel layer 41.
  • the first working time length of the first pixel layer and the second working time length of the second pixel layer are determined.
  • the first current brightness value of the first pixel layer under the first working duration is determined, and according to the second correspondence and the second working duration, the second working duration is determined The second current brightness value of the lower second pixel layer.
  • the brightness of the first pixel layer 31 and the second pixel layer 41 will also be different.
  • the first current brightness value of the first pixel layer 31 under the first working duration can be determined, and according to the second correspondence and the second working duration, it can be determined under the second working duration The second current brightness value of the second pixel layer 41.
  • the first current brightness value of the first pixel layer 31 under the first working time can be determined according to the first brightness attenuation curve and the first working time.
  • the second current brightness value of the second pixel layer 41 under the second working duration can be determined according to the second brightness attenuation curve and the second working duration.
  • the first working period of time when the first pixel layer 31 is in the working state and the second working period when the second pixel layer 41 is in the working state can be based on the clock inside the display device 100 Module to determine.
  • two clock modules can be set to manage the working hours of the first pixel layer 31 and the second pixel layer 41 respectively.
  • the first power supply voltage is provided to the first pixel layer, and the second power supply voltage is provided to the second pixel layer, so that the brightness of the first pixel layer is the same as the brightness of the second pixel layer.
  • the difference between the first current brightness value of the first pixel layer 31 and the second current brightness value of the second pixel layer 41 is small, based on the human visual error, at this time, the difference between the first display area 30 and the second display area 40 The difference in display effect is small. Therefore, when the difference between the first current brightness value and the second current brightness value is within the preset range, it is not necessary to adjust the brightness of the first pixel layer 31 and the second pixel layer 41 at this time, and continue to the first pixel
  • the layer 31 provides the first current voltage under the first working period, and continues to provide the second pixel layer 41 with the second current voltage under the second working period.
  • FIG. 12 is a first display state change diagram of the display device according to an embodiment of the application.
  • FIG. 12 if the brightness of the first pixel layer 31 and the second pixel layer 41 is not adjusted, as the working time increases, the boundary between the display effects of the first display area 30 and the second display area 40 becomes more and more. The more obvious. For example, the boundary between the first display area 30 and the second display area 40 when the working time is 2 m is more obvious than the boundary between the first display area 30 and the second display area 40 when the working time is m.
  • the first pixel layer 31 and the second pixel layer 31 need to be adjusted.
  • the first pixel layer 31 may be provided with a first power supply voltage and the second pixel layer 41 may be provided with a second power supply voltage, so that the brightness of the first pixel layer 31 and the brightness of the second pixel layer 41 are the same.
  • FIG. 13 is a second type of brightness attenuation curve diagram of the display device provided by an embodiment of the application.
  • FIG. 14 is a second display state change diagram of the display device provided by an embodiment of the application.
  • the curve S3 is the brightness attenuation curve of the first pixel layer 31 in the first display area 30
  • the curve S4 represents the brightness attenuation curve of the second pixel layer 41 in the second display area 40.
  • a power supply voltage adjusts the brightness of the first pixel layer 31 from a brightness a to a brightness A, and at the same time, a second power supply voltage can be provided to the second pixel layer 41, so that the brightness of the second pixel layer 41 is maintained at a brightness A, and further, After adjustment, the brightness of the first pixel layer 31 and the brightness of the second pixel layer 41 are the same.
  • the adjusted brightness difference between the first pixel layer 31 and the second pixel layer 41 will continue to increase. At this time, the first pixel layer 31 and the first pixel layer 31 and the second pixel layer need to be adjusted again. The brightness of the two pixel layer 41 is adjusted.
  • the first pixel The layer 31 provides another first power supply voltage, so that the brightness of the first pixel layer 31 is adjusted from zero b to brightness B, and at the same time, another second power supply voltage can be provided to the second pixel layer 41, so that the The brightness is maintained at the brightness B, and further, after adjustment, the brightness of the first pixel layer 31 may also be the same as the brightness of the second pixel layer 41.
  • the above steps can be looped to adjust the brightness of the first pixel layer 31 and the second pixel layer 41 multiple times so that there is no obvious display between the first pixel layer 31 and the second pixel layer 41.
  • the boundary line avoids the afterimage phenomenon between the display areas caused by the large difference in the wear of the display elements, and the display effect of the display device 100 is better.
  • the first display area 30 may include a first power input layer 32 and a first power input line 33.
  • the first power input layer 32 is disposed on one side of the first pixel layer 31.
  • the first power input layer 32 and the first pixel The cathode of the layer 31 is electrically connected;
  • the first power input line 33 is arranged on the periphery of the first power input layer 32, and the first power input layer 32 is electrically connected to the negative electrode of the power management chip 10 through the first power input line 33.
  • the second display area 40 may include a second power input layer 42 and a second power input line 43.
  • the second power input layer 42 is disposed on one side of the second pixel layer 41.
  • the cathode of the pixel layer 41 is electrically connected; the second power input line 43 is disposed on the periphery of the second power input layer 42, and the second power input layer 42 is electrically connected to the negative electrode of the power management chip 10 through the second power input line 43.
  • step 106 the display method of the embodiment of the present application may further include:
  • the drive control chip controls the power management chip to provide the first power supply voltage to the first pixel layer through the first power input line and the first power input layer, and the drive control chip controls the power management chip through the second power input line and the second power input layer.
  • the power input layer provides the second power supply voltage to the second pixel layer, so that the brightness of the first pixel layer is the same as the brightness of the second pixel layer.
  • the drive control chip 20 can control the power management chip 10 to provide the first power supply voltage to the first pixel layer 31 through the first power input line 33 and the first power input layer 32; the drive control chip 20 can control the power management chip 10 to pass the second power supply The input line 43 and the second power input layer 42 provide the second power supply voltage to the second pixel layer 41. At this time, the voltage values of the first power supply voltage and the second power supply voltage can be adjusted to make the brightness of the first pixel layer 31 and The brightness of the second pixel layer 41 is the same.
  • the first display area 30 may further include a first input power source 35, the first input power source 35 is electrically connected to the anode of the first pixel layer 31, and the first input power source 35 is electrically connected to the anode of the power management chip 10.
  • the second display area 40 may further include a second input power source 45, the second input power source 45 is electrically connected to the anode of the second pixel layer 41, and the second input power source 45 is electrically connected to the anode of the power management chip 10.
  • step 106 the display method of the embodiment of the present application may further include:
  • control power management chip provides the first power supply voltage to the first pixel layer through the first input power source, and provides the second power supply voltage to the second pixel layer through the second input power source, so that the brightness of the first pixel layer is equal to The brightness of the second pixel layer is the same.
  • the control power management chip 10 can provide the first power supply voltage to the first pixel layer 31 through the first input power supply 35 and can provide the second power supply voltage to the second pixel layer 41 through the second input power supply 45. At this time, the voltage values of the first power supply voltage and the second power supply voltage can be adjusted so that the brightness of the first pixel layer 31 and the brightness of the second pixel layer 41 are the same.
  • the driving control chip 20 may be electrically connected to the first pixel layer 31 and the second pixel layer 41 respectively.
  • FIG. 17 is a schematic diagram of the fourth flow of the display method provided by an embodiment of this application.
  • the display method of the embodiment of the present application may further include:
  • the drive control chip transmits the data signal of the first voltage to the first pixel layer and the data signal of the second voltage to the second pixel layer, so that the brightness of the first pixel layer is the same as the brightness of the second pixel layer .
  • the driving control chip 20 may transmit the data signal of the first voltage to the first pixel layer 31 and is used to transmit the data signal of the second voltage to the second pixel layer 41. At this time, the voltage values of the first power supply voltage and the second power supply voltage can be adjusted so that the brightness of the first pixel layer 31 and the brightness of the second pixel layer 41 are the same.

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Abstract

一种显示装置(100)、电子设备(1000)及显示方法,显示装置(100)的电源管理芯片(10)分别与第一显示区(30)的第一像素层(31)以及第二显示区(40)的第二像素层(41)电连接,显示装置(100)的驱动控制芯片(20)与电源管理芯片(10)电连接并控制电源管理芯片(10)向第一像素层(31)提供第一供电电压、向第二像素层(41)提供第二供电电压,以使第一像素层(31)的亮度与第二像素层(41)的亮度相同。

Description

显示装置、电子设备及显示方法
本申请要求于2020年04月07日提交中国专利局、申请号为202010266806.0、发明名称为“显示装置、电子设备及显示方法”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。
技术领域
本申请涉及电子技术领域,特别涉及一种显示装置、电子设备及显示方法。
背景技术
随着电子技术的发展,诸如智能手机等电子设备越来越普及。在电子设备的使用过程中,电子设备可以采用其显示装置显示画面。
发明内容
本申请实施例提供了一种显示装置、电子设备及显示方法,可以解决显示装置不同区域的显示元件由于工作时长不一致造成元件损耗不一致、进而使得显示装置存在的残影现象的技术问题。
第一方面,本申请实施例提供了一种显示装置,包括:
第一显示区,所述第一显示区包括第一像素层;
第二显示区,所述第二显示区包括第二像素层;
电源管理芯片,所述电源管理芯片分别与所述第一像素层和所述第二像素层电连接;及
驱动控制芯片,所述驱动控制芯片与所述电源管理芯片电连接,所述驱动控制芯片用于控制所述电源管理芯片向所述第一像素层提供第一供电电压、向所述第二像素层提供第二供电电压,以使所述第一像素层的亮度与所述第二像素层的亮度相同。
第二方面,本申请实施例还提供了一种电子设备,包括显示装置和电路板,所述电路板与所述显示装置电连接,所述电路板用于控制所述显示装置显示信息;所述显示装置包括:
第一显示区,所述第一显示区包括第一像素层;
第二显示区,所述第二显示区包括第二像素层;
电源管理芯片,所述电源管理芯片分别与所述第一像素层和所述第二像素层电连接;及
驱动控制芯片,所述驱动控制芯片与所述电源管理芯片电连接,所述驱动控制芯片用于控制所述电源管理芯片向所述第一像素层提供第一供电电压、向所述第二像素层提供第二供电电压,以使所述第一像素层的亮度与所述第二像素层的亮度相同。
第三方面,本申请实施例还提供了一种显示方法,应用于电子设备内,所述电子设备包括显示装置和电路板,所述电路板与所述显示装置电连接,所述电路板用于控制所述显示装置显示信息;所述显示装置包括:
第一显示区,所述第一显示区包括第一像素层;
第二显示区,所述第二显示区包括第二像素层;
电源管理芯片,所述电源管理芯片分别与所述第一像素层和所述第二像素层电连接;及
驱动控制芯片,所述驱动控制芯片与所述电源管理芯片电连接,所述驱动控制芯片用于控制所述电源管理芯片向所述第一像素层提供第一供电电压、向所述第二像素层提供第二供电电压,以使所述第一像素层的亮度与所述第二像素层的亮度相同;
所述显示方法包括:
设置所述第一像素层的工作时长与显示亮度的第一对应关系,以及设置所述第二像素 层的工作时长与显示亮度的第二对应关系;
确定所述第一像素层的第一工作时长、以及所述第二像素层的第二工作时长;
根据所述第一对应关系和所述第一工作时长,确定在所述第一工作时长下所述第一像素层的第一当前亮度值;
根据所述第二对应关系和所述第二工作时长,确定在所述第二工作时长下所述第二像素层的第二当前亮度值;
判断所述第一当前亮度值与所述第二当前亮度值的差值是否在预设范围内;
若是,则继续向所述第一像素层提供所述第一工作时长下的第一当前电压,继续向所述第二像素层提供所述第二工作时长下的第二当前电压;
若否,则向所述第一像素层提供所述第一供电电压,并向所述第二像素层提供所述第二供电电压,以使所述第一像素层的亮度与所述第二像素层的亮度相同。
附图说明
为了更清楚地说明本申请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仅是本申请的一些实施例,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为本申请实施例提供的显示装置的第一种结构示意图。
图2为本申请实施例提供的显示装置的第一种显示状态示意图。
图3为本申请实施例提供的显示装置的第二种显示状态示意图。
图4为本申请实施例提供的显示装置的第二种结构示意图。
图5为本申请实施例提供的显示装置的电路原理示意图。
图6为本申请实施例提供的显示装置的第三种结构示意图。
图7为本申请实施例提供的显示装置的第四种结构示意图。
图8为本申请实施例提供的显示装置的第五种结构示意图。
图9为本申请实施例提供的电子设备的一种结构示意图。
图10为本申请实施例提供的显示方法的第一种流程示意图。
图11为本申请实施例提供的显示装置的第一种亮度衰减曲线图。
图12为本申请实施例提供的显示装置的第一种显示状态变化图。
图13为本申请实施例提供的显示装置的第二种亮度衰减曲线图。
图14为本申请实施例提供的显示装置的第二种显示状态变化图。
图15为本申请实施例提供的显示方法的第二种流程示意图。
图16为本申请实施例提供的显示方法的第三种流程示意图。
图17为本申请实施例提供的显示方法的第四种流程示意图。
具体实施方式
下面将结合本申请实施例中的附图1至17,对本申请实施例中的技术方案进行清楚、完整地描述。显然,所描述的实施例仅仅是本申请一部分实施例,而不是全部的实施例。基于本申请中的实施例,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,都属于本申请保护的范围。
本申请实施例提供一种显示装置、电子设备及显示方法。该显示方法的执行主体可以是本申请实施例提供的显示装置,或者集成了该显示装置的电子设备,其中该显示装置可以采用硬件或者软件的方式实现。其中,电子设备可以是手机、平板电脑等移动终端设备,还可以是游戏设备、增强现实(Augmented Reality,AR)设备、虚拟现实(Virtual Reality,VR)设备、车载电脑、笔记本电脑、数据存储装置、音频播放装置、视频播放装置、可穿戴设备等具有显示装置的设备,其中可穿戴设备可以是智能手环、智能眼镜等。
请参考图1和图2,图1为本申请实施例提供的显示装置的第一种结构示意图,图2为本申请实施例提供的显示装置的第一种显示状态示意图。如图1所示,本申请实施例提供的显示装置100,可以包括电源管理芯片10、驱动控制芯片20、相互连接的第一显示区30和第二显示区40,其中,第一显示区30和第二显示区40都可以用于显示文字或图像,第一显示区30内包括第一像素层31,第二显示区40内包括第二像素层41。电源管理芯片10分别与第一像素层31和第二像素层41电连接,驱动控制芯片20与电源管理芯片10电连接,驱动控制芯片20用于控制电源管理芯片10向第一像素层31提供第一供电电压,驱动控制芯片20还用于控制电源管理芯片10向第二像素层41提供第二供电电压,进而使得第一像素层31的亮度与第二像素层41的亮度相同。
其中,当显示装置100为柔性折叠屏时,第一显示区30和第二显示区40可以是柔性折叠屏中的两个不同显示区域。例如,请结合图2并参考图3,其中,图3为本申请实施例提供的显示装置的第二种显示状态示意图。当柔性折叠屏处于展开状态时,如图2所示,第一显示区30和第二显示区40相互连接且可以共同显示图像。当柔性折叠屏处于折叠状态时,如图3所示,第一显示区30和第二显示区40中的至少一个可以显示图像。
其中,当显示装置100为非柔性折叠屏时,第一显示区30和第二显示区40也可以是显示装置100中的两个不同显示区域。例如,请参考图4,图4为本申请实施例提供的显示装置的第二种结构示意图。第一显示区30可以围绕第二显示区40设置,第二显示区40周缘可以都与第一显示区30邻接。其中,第二显示区40可以用于熄屏显示下动态或静态显示时间、天气、应用消息等。也即,第二显示区40既可以单独用于熄屏显示,第二显示区40也可以与第一显示区30共同用于亮屏显示。
可以理解的是,在显示装置100中,第二显示区40可以位于第一显示区30的中间。第一显示区30也可以部分围绕第二显示区40,第二显示区40的部分边缘与第一显示区30邻接。第一显示区30的边角也可以为不规则形状,例如具有一个缺口,第二显示区40可以位于该缺口内。
可以理解的是,本申请实施例的第一显示区30和第二显示区40的结构、位置关系均不限于上述举例,其他在显示装置100中存在第一显示区30和第二显示区40的方案也在本申请的保护范围内。
其中,第一显示区30和第二显示区40可以共同显示同一图像,例如,第一显示区30显示预设图像的一部分,第二显示区40显示预设图像剩下的部分。第一显示区30和第二显示区40也可以显示不同的图像,例如,第一显示区30显示预设图像,第二显示区40显示任务栏图像。
其中,第一显示区30和第二显示区40可以同时工作以显示上述同一或不同图像,当然,第一显示区30和第二显示区40中的一个可以显示信息而另一个不显示任何信息,以实现显示装置100的局部显示。例如,当柔性折叠屏处于展开状态或者显示装置100处于亮屏显示状态时,第一显示区30和第二显示区40可以共同显示图像;当柔性折叠屏处于折叠状态或者显示装置100处于熄屏显示状态时,第一显示区30、第二显示区40中的一个可以显示信息而另一个不工作,进而实现显示装置100的局部显示。
由于显示装置100的固有特性,显示区域内的像素单元工作一段时间后会存在亮度衰减的问题,使得像素单元的亮度会随着显示区域工作时长的增加而衰减。在实际使用中,当显示装置100局部显示一段时间后,局部显示区域的工作时长远大于非局部显示区域的工作时长,局部显示区域的像素单元的亮度小于非局部显示区域内的像素单元的亮度,进而,局部显示区域与非局部显示区域之间会存在明显的界限。
本申请正是为解决上述技术问题而提出了上述方案。本申请实施例的显示装置100,电源管理芯片10分别与第一显示区30内的第一像素层31、第二显示区40内的第二像素层41 电性连接,驱动控制芯片20控制电源管理芯片10向第一像素层31提供第一供电电压,向第二像素层41提供第二供电电压。基于此,由于供电电压可以影响第一像素层31和第二像素层41的亮度,进而,通过调节第一供电电压和第二供电电压的相对关系,可以弥补第一显示区30内第一像素层31与第二显示区40内第二像素层41的亮度差,使得第一像素层31的亮度与第二像素层41的亮度相同,第一显示区30和第二显示区40不会存在明显的界限,避免了由于显示元件耗损差异较大导致的显示区域之间的残影现象,显示装置100的显示效果更好。
需要理解的是,在本申请的描述中,诸如“第一”、“第二”等术语仅用于区分类似的对象,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。
下面将结合附图详细说明本申请实施例的第一显示区30和第二显示区40的具体结构。
本申请实施例中第一显示区30内的第一像素层31以及第二显示区40内的第二像素层41可以包括至少一个像素点,该像素点可以是有机发光二极管(Organic Light-Emitting Diode简称OLED),在电压的作用下,OLED可以被点亮而发出不同颜色的光线。具体的,请参考图5,图5为本申请实施例提供的显示装置的电路原理示意图。本申请实施例的显示装置100可以包括至少一个驱动单元,一个驱动单元与至少一个像素点电性连接。其中一个驱动单元至少可以包括两个薄膜晶体管(Thin Film Transistor简称TFT)T1和T2、以及一个电容C1,如图5所示,T1的栅极电性连接扫描信号Scan,T1的源级电性连接数据信号Data,T1的漏极与T2的栅极及电容C1的一端电性连接;T2的漏极电连接外部电源正极(ELVDD),T2的源级电性连接OLED的阳极,OLED的阴极电性连接外部电源负极(ELVSS);电容C1的一端电性连接T1的漏极及T2的栅极,电容C1的另一端电性连接T2的漏极及外部电源正极(ELVDD)。
当外部电源正极、负极与驱动单元、像素点电性连接时,扫描信号Scan控制T1打开,数据信号Data经过T1进入到T2的栅极及电容C1中,然后T1闭合,由于C1的存储作用,T2的栅极电压依然仍可继续保持数据信号电压,使得T2处于导通状态,驱动电流通过T2进入OLED中,驱动OLED发光。进而,在驱动单元的控制下,显示装置100的像素点可以被点亮。并且,当外部电源正极和负极之间的压差越大时,像素点的亮度越高,像素点的亮度往往与压差成正比关系。
基于此,本申请实施例可以通过改变外部电源正极和负极之间的压差,来调节不同像素点的亮度。具体的,请参考图6和图7,图6为本申请实施例提供的显示装置的第三种结构示意图,图7为本申请实施例提供的显示装置的第四种结构示意图。本申请实施例的显示装置100还包括第一电源输入层32、第二电源输入层42、第一电源输入线33、第二电源输入线43和正极输入电源51。第一电源输入层32和第一电源输入线33位于第一显示区30内,第二电源输入层42和第二电源输入线43位于第二显示区40内,正极输入电源51同时位于第一显示区30和第二显示区40。其中,第一电源输入层32设置在第一像素层31的一侧,第二电源输入层42设置在第二像素层41的一侧。正极输入电源51设置在第一像素层31、第二像素层41的另一侧,进而第一像素层31和第二像素层41设置在正极输入电源51与第一电源输入层32、第二电源输入层42之间。
其中,如图6和图7所示,第一像素层31和第二像素层41可以处于同一层,第一电源输入层32和第二电源输入层42也可以处于同一层。从外观上看,第一像素层31和第二像素层41的内外表面均可持平并形成一整体,第一电源输入层32和第二电源输入层42的内外表面也均可持平并形成一整体。其中,第一电源输入线33可以设置在第一电源输入层32的周缘,第二电源输入线43可以设置在第二电源输入层42的周缘。例如,在图7中,第一电源输入线33可以设置在第一电源输入层32的左右两侧,第二电源输入线43可以设置在第二电源输入层42的左右两侧。
可以理解的是,在实际生产过程中,第一像素层31和第二像素层41可以通过蒸镀等工艺形成在同一块基板上,第一电源输入层32和第二电源输入层42也可以通过成膜、曝光、蚀刻等工艺形成在同一块基板上。当第一像素层31、第二像素层41、第一电源输入层32、第二电源输入层42和正极输入电源51均制备好后,可以将上部部件封装,然后进行偏光片贴附、第一电源输入线33、第二电源输入线43等的控制线路与芯片贴合等各项工艺,最终制备出完整的显示装置100。
其中,第一电源输入层32和第二电源输入层42铺设在第一像素层31、第二像素层41的一侧时,第一电源输入层32可以直接与第一像素层31接触并实现与第一像素层31上的像素点的电连接,第二电源输入层42也可以直接与第二像素层41接触并实现与第二像素层41上的像素点的电连接,进而,第一电源输入层32和第二电源输入层42不需要通过导线与像素点电连接,可以减少导线对像素点的显示影响。
同时,第一电源输入层32可以通过该第一电源输入线33与电源管理芯片10的负极电连接,此时,电源管理芯片10、第一电源输入线33、第一电源输入层32、第一像素层31和正极输入电源51可形成一电流回路以使第一像素层31发光。第二电源输入层42可以通过该第二电源输入线43与电源管理芯片10的负极电连接,此时,电源管理芯片10、第二电源输入线43、第二电源输入层42、第二像素层41和正极输入电源51可形成另一电流回路以使第二像素层41发光。当第一电源输入线33设置在第一电源输入层32的周缘、第二电源输入线43设置在第二电源输入层42的周缘时,也可以减少第一电源输入线33和第二电源输入线43对像素点的显示影响。
可以理解的是,第一电源输入层32和第二电源输入层42形成的基板上,还可以设置有第一连接点34和第二连接点44,其中,第一电源输入线33可以通过该第一连接点34与电源管理芯片10的负极电连接,电源管理芯片10可以通过该第一连接点34和第一电源输入线33向第一电源输入层32提供第一供电电压;第二电源输入线43可以通过该第二连接点44与电源管理芯片10的负极电连接,电源管理芯片10可以通过该第二连接点44和第二电源输入线43向第二电源输入层42提供第二供电电压。
可以理解的是,由于第一像素层31和第二像素层41上一般会设置多个像素点,为了实现每一像素点的准确控制,第一电源输入线33和第二电源输入线43一般会设置多条,多条第一电源输入线33可以通过一个第一连接点34与电源管理芯片10的负极电连接,多条第二电源输入线43可以通过一个第二连接点44与电源管理芯片10的负极电连接,进而,可以降低多条电源输入线与电源管理芯片10之间布线的难度。
并且,如图7所示,第一连接点34和第二连接点44的数量均可以设置两个,以与左右两侧的第一电源输入线33、第二电源输入线43对应。具体的,左侧的第一电源输入线33可以与左侧的第一连接点34连接,右侧的第一电源输入线33可以与右侧的第一连接点34连接;同理,左侧的第二电源输入线43可以与左侧的第二连接点44连接,右侧的第二电源输入线43可以与右侧的第二连接点44连接,进而,可以避免连接点与连接点的交叉连接。同时,两个第一连接点34可以设置在两个第二连接点44的外侧,相应的,同侧的第一电源输入线33也可以设置在第二电源输入线43的外侧,以进一步避免第一电源输入线33和第二电源输入线43的交叉连接。
基于图6和图7的显示装置100,本申请实施例的显示装置100,电源管理芯片10通过第一连接点34、第一电源输入线33、第一电源输入层32向第一显示区30的第一像素层31内的像素点提供负极的第一供电电压(ELVSS1)。电源管理芯片10通过第二连接点44、第二电源输入线43、第二电源输入层42向第二显示区40的第二像素层41内的像素点提供负极的第二供电电压(ELVSS2)。而第一像素层31内的像素点的阳极、第二像素层41内的像素点的阳极均与正极输入电源51电连接,正极输入电源51向第一像素层31和第二像素层41内的像 素点提供相同的正极电压(ELVDD)。
本申请实施例的显示装置100在显示的过程中,驱动控制芯片20可以控制电源管理芯片10向第一像素层31提供第一供电电压(ELVSS1),并向第二像素层41提供第二供电电压(ELVSS2)。其中,第一供电电压(ELVSS1)可以与第二供电电压相同(ELVSS2),当正极输入电源51的正极电压(ELVDD)一定时,此时,第一像素层31两端的电压差与第二像素层41两端的电压差相等,若第一像素层31和第二像素层41的亮度衰减程度一致,则第一像素层31的亮度和第二像素层41的亮度也相等。由于像素层两端的电压差可以影响像素的亮度,若第一像素层31和第二像素层41的亮度衰减程度不一致,则此时可以调节第一供电电压(ELVSS1)不同于第二供电电压相同(ELVSS2),以使得第一像素层31的亮度和第二像素层41的亮度相等。
可以理解的是,驱动控制芯片20可以通过输入输出接口60与电源管理芯片10电性连接。进而,驱动控制芯片20可以向电源管理芯片10传输控制芯片,电源管理芯片10也可以将第一像素层31的当前第一供电电压和第二像素层41的当前第二供电电压的情况传输至驱动控制芯片20,实现驱动控制芯片20与电源管理芯片10的双向控制。
其中,请参考图8,图8为本申请实施例提供的显示装置的第五种结构示意图。本申请实施例的显示装置100还可以包括第一输入电源35、第二输入电源45和负极输入电源层52。其中,第一输入电源35位于第一显示区30,第二输入电源45位于第二显示区40,负极输入电源层52同时位于第一显示区30和第二显示区40。并且,负极输入电源层52可以位于第一像素层31和第二像素层41的一侧且覆盖在第一像素层31和第二像素层41的一侧。第一输入电源35可以设置在第一像素层31的另一侧并且第二输入电源45也可以设置在第二像素层41的另一侧,进而第一像素层31和第二像素层41可以设置在负极输入电源层52与第一输入电源35、第二输入电源45之间。从外观上看,第一输入电源35和第二输入电源45可以处于同一层,也即,第一输入电源35和第二输入电源45的内外表面可以持平并形成一整体。
可以理解的是,在实际生产过程中,第一输入电源35、第二输入电源45可以通过洗净及表面处理、光刻处理、成膜、曝光、蚀刻等工艺形成在同一块基板上。当第一像素层31、第二像素层41、第一输入电源35、第二输入电源45和负极输入电源层52均制备好后,可以将上部部件封装,然后进行偏光片贴附、控制线路与芯片贴合等各项工艺,最终制备出完整的显示装置100。
其中,第一输入电源35可以通过电源输入线等导电材料既与第一像素层31的阳极电性连接又与电源管理芯片10的正极电连接,电源管理芯片10、第一输入电源35、第一像素层31和负极输入电源层52可形成一电流回路以使第一像素层31发光。同理,第二输入电源45也可以通过电源输入线等导电材料既与第二像素层41的阳极电性连接又与电源管理芯片10的正极电连接,电源管理芯片10、第二输入电源45、第二像素层41和负极输入电源层52可形成另一电流回路以使第二像素层41发光。
可以理解的是,本申请实施例的显示装置100,驱动控制芯片20可以控制电源管理芯片10向第一输入电源35提供第一供电电压(ELVDD1),驱动控制芯片20也可以控制电源管理芯片10向第二输入电源45提供第二供电电压(ELVDD2),进而使得第一像素层31和第二像素层41的亮度相同。其中,第一供电电压(ELVDD1)可以与第二供电电压相同(ELVDD2),当负极输入电源层52的负极电压(ELVSS)一定时,此时,第一像素层31两端的电压差与第二像素层41两端的电压差相等,若第一像素层31和第二像素层41的亮度衰减程度一致,则第一像素层31的亮度和第二像素层41的亮度也相等。由于像素层两端的电压差可以影响像素的亮度,若第一像素层31和第二像素层41的亮度衰减程度不一致,则此时可以调节第一供电电压(ELVDD1)不同于第二供电电压相同(ELVDD2),以使得第一像素层31的亮度和第二像素层41的亮度相等。
在本申请实施例中,通过调节第一输入电源35和第二输入电源45之间的供电电压,可以使得包含第一像素层31的第一显示区30的亮度和包含第二像素层41的第二显示区40的亮度一致,进而第一显示区30和第二显示区40不会存在明显的界限,避免了由于显示元件耗损差异较大导致的显示区域之间的残影现象,显示装置100的显示效果更好。
其中,驱动控制芯片20也可以分别与第一像素层31和第二像素层41电连接,驱动控制芯片20可以向第一像素层31传输第一电压的数据信号Data1,驱动控制芯片20也可以向第二像素层41传输第二电压的数据信号Data2。
可以理解的是,第一电压可以与第二电压相等,第一电压也可以不同于第二电压,第一电压和第二电压的大小可以与第一像素层31和第二像素层41的亮度衰减相关,通过调节第一电压和第二电压的大小,可以使得第一像素层31和第二像素层41的亮度相同。例如,当第一像素层31的亮度衰减值大于第二像素层41的亮度衰减值,则第一电压可以大于第二电压,以使得第一像素层31的当前亮度与第二像素层41的当前亮度相同。
在本申请实施例中,通过控制数据信号Data1和数据信号Data2的电压,使得包含第一像素层31的第一显示区30的亮度和包含第二像素层41的第二显示区40的亮度调整为一致,进而第一显示区30和第二显示区40不会存在明显的界限,避免了由于显示元件耗损差异较大导致的显示区域之间的残影现象,显示装置100的显示效果更好。
本申请实施例的上述显示装置100可以是有机发光二极管显示屏(Organic Light-Emitting Diode,OLED)。显示装置100可以为全面屏。此时,显示装置100可以全屏显示信息,从而电子设备1000具有较大的屏占比。显示装置100也可以只包括显示区域,而不包括非显示区域,或者对用户而言非显示区域的面积较小。此时,电子设备1000中的摄像头、接近传感器等电子器件可以隐藏在显示装置100下方,而电子设备1000的指纹识别模组可以设置在电子设备1000的后盖600上。
基于上述实施例的显示装置100,请参考图9,图9为本申请实施例提供的电子设备的一种结构示意图。本申请的电子设备1000除了包括上述显示装置100外还可以包括盖板200、中框300、电路板400、电池500、后盖600等部件。
盖板200可以安装在中框300上,并且盖板200覆盖显示装置100,以对显示装置100进行保护,防止显示装置100被刮伤或者被水损坏。盖板200可以为透明玻璃盖板200,从而用户可以透过盖板200观察到显示装置100显示的内容。盖板200可以为蓝宝石材质的玻璃盖板200。
显示装置100可以安装在中框300上,并通过中框300连接至后盖600上,以形成电子设备1000的显示面。显示装置100可以作为电子设备1000的前壳,与后盖600共同形成电子设备1000的壳体,用于容纳电子设备1000的其他电子器件。例如,壳体可以用于容纳电子设备1000的处理器、存储器、一个或多个传感器、采光元件等电子器件。
中框300可以为薄板状或薄片状的结构,也可以为中空的框体结构。中框300用于为电子设备1000中的电子器件提供支撑作用,以将电子设备1000中的电子器件、电子器件安装到一起。例如,电子设备1000中的采光元件、受话器、电路板400、电池500等电子器件都可以安装到中框300上以进行固定。
电路板400可以安装在中框300上。电路板400可以为电子设备1000的主板。其中,电路板400上可以集成有麦克风、扬声器、受话器、耳机接口、通用串行总线接口(USB接口)、摄像头组件、距离传感器、环境光传感器、陀螺仪以及处理器等电子器件中的一个、两个或多个。
其中,显示装置100可以电连接至电路板400,以通过电路板400上的处理器对显示装置100的显示进行控制,电路板400可以用于控制显示装置100显示图像、文本等信息。
电池500可以安装在中框300上。同时,电池500电连接至电路板400,以实现电池500 为电子设备1000供电。其中,电源管理芯片10可以设置在电路板400上。电源管理芯片10可以用于将电池500提供的电压分配到电子设备1000中的各个电子器件。其中,电池500可以为可充电电池500。例如,电池500可以为锂离子电池500。
后盖600位于电路板400远离显示装置100的一侧,也即,后盖600位于电子设备1000的最外部,并用于形成电子设备1000的外部轮廓。后盖600可以一体成型。在后盖600的成型过程中,可以在后盖600上形成后置摄像头孔、指纹识别模组安装孔等结构。
后盖600可以为金属材质,比如镁合金、不锈钢等金属。需要说明的是,本申请实施例的后盖600的材料并不限于此,还可以采用其它方式。例如,后盖600可以为塑胶材质。再例如,后盖600可以为陶瓷或玻璃材质。再例如,后盖600可以包括塑胶部分和金属部分,后盖600可以为金属和塑胶相互配合的壳体结构。具体的,可以先成型金属部分,比如采用注塑的方式形成镁合金基板,在镁合金基板上再注塑塑胶,形成塑胶基板,以形成完整的壳体结构。
基于上述显示装置100和电子设备1000,本申请实施例还提供一种显示方法,应用于上述电子设备1000内,电子设备1000包括显示装置100和电路板400,电路板400与显示装置100电连接,电路板400用于控制显示装置100显示信息;显示装置100包括:第一显示区30,第一显示区30包括第一像素层31;第二显示区40,第二显示区40包括第二像素层41;电源管理芯片10,电源管理芯片10分别与第一像素层31和第二像素层41电连接;驱动控制芯片20,驱动控制芯片20与电源管理芯片10电连接,驱动控制芯片20用于控制电源管理芯片10向第一像素层31提供第一供电电压、向第二像素层41提供第二供电电压,以使第一像素层31的亮度与第二像素层41的亮度相同;
显示方法包括:
设置第一像素层31的工作时长与显示亮度的第一对应关系,以及设置第二像素层41的工作时长与显示亮度的第二对应关系;确定第一像素层31的第一工作时长、以及第二像素层41的第二工作时长;根据第一对应关系和第一工作时长,确定在第一工作时长下第一像素层31的第一当前亮度值;根据第二对应关系和第二工作时长,确定在第二工作时长下第二像素层41的第二当前亮度值;判断第一当前亮度值与第二当前亮度值的差值是否在预设范围内;若是,则继续向第一像素层31提供第一工作时长下的第一当前电压,继续向第二像素层41提供第二工作时长下的第二当前电压;若否,则向第一像素层31提供第一供电电压,并向第二像素层41提供第二供电电压,以使第一像素层31的亮度与第二像素层41的亮度相同。
在一些实施例中,第一显示区30还包括:第一电源输入层32,第一电源输入层32设置于第一像素层31的一侧,第一电源输入层32与第一像素层31的阴极电连接;及第一电源输入线33,第一电源输入线33设置于第一电源输入层32的周缘,第一电源输入层32通过第一电源输入线33与电源管理芯片10的负极电连接;第二显示区40还包括:第二电源输入层42,第二电源输入层42设置于第二像素层41的一侧,第二电源输入层42与第二像素层41的阴极电连接;及第二电源输入线43,第二电源输入线43设置于第二电源输入层42的周缘,第二电源输入层42通过第二电源输入线43与电源管理芯片10的负极电连接。所述若否,则向第一像素层31提供第一供电电压,并向第二像素层41提供第二供电电压,包括:驱动控制芯片20控制电源管理芯片10通过第一电源输入线33和第一电源输入层32向第一像素层31提供第一供电电压;驱动控制芯片20控制电源管理芯片10通过第二电源输入线43和第二电源输入层42向第二像素层41提供第二供电电压。
在一些实施例中,第一显示区30还包括:第一输入电源35,第一输入电源35与第一像素层31的阳极电连接,第一输入电源35也与电源管理芯片10的正极电连接;第二显示区40还包括:第二输入电源45,第二输入电源45与第二像素层41的阳极电连接,第二 输入电源45也与电源管理芯片10的正极电连接。若否,则向第一像素层31提供第一供电电压,并向第二像素层41提供第二供电电压,包括:驱动控制芯片20控制电源管理芯片10通过第一输入电源35向第一像素层31提供第一供电电压;驱动控制芯片20控制电源管理芯片10通过第二输入电源45向第二像素层41提供第二供电电压。
在一些实施例中,驱动控制芯片20分别与第一像素层31和第二像素层41电连接。若否,则向第一像素层31提供第一供电电压,并向第二像素层41提供第二供电电压,包括:驱动控制芯片20向第一像素层31传输第一电压的数据信号、并用于向第二像素层41传输第二电压的数据信号。
基于上述说明,请参考图10,图10为本申请实施例提供的显示方法的第一种流程示意图。本申请实施例的显示方法可以应用在上述显示装置100和电子设备1000中,该显示方法包括:
在101中,设置第一像素层的工作时长与显示亮度的第一对应关系,以及设置第二像素层的工作时长与显示亮度的第二对应关系。
由于显示装置100的固有特性,显示区域工作一段时间后会存在亮度衰减的问题,使得显示区域内的像素单元的亮度会随着显示区域工作时长的增加而衰减。根据该工作时间与亮度的衰减关系特性,可以确定第一像素层31的工作时长与显示亮度的第一对应关系,以及确定第二像素层41的工作时长与显示亮度的第二对应关系。
例如,可以利用工作时间与亮度的衰减关系特性,制备第一像素层31的第一亮度衰减曲线和第二像素层41的第二亮度衰减曲线。或者,可以利用工作时间与亮度的衰减关系特性,制备第一像素层31的工作时长与显示亮度的映射表、以及第二像素层41的工作时长与显示亮度的映射表等。
以下以制备第一像素层31的第一亮度衰减曲线和第二像素层41的第二亮度衰减曲线为例来说明。
请参考图11,图11为本申请实施例提供的显示装置的第一种亮度衰减曲线图。由于同一批次的像素单元的亮度衰减情况基本一致,因此,可以利用与第一像素层31内像素单元同一批次的其他像素单元来制备第一像素层31的亮度衰减曲线。同理,可以利用与第二像素层41内像素单元同一批次的其他像素单元来制备第二像素层41的亮度衰减曲线。
在图11中,曲线S1表示第一显示区30内第一像素层31的亮度衰减曲线,曲线S2表示第二显示区40内第二像素层41的亮度衰减曲线。由图11可以看出,像素单元的亮度衰减通常与像素单元的特性相关,不同的像素单元的亮度衰减曲线可以不同。在图11中,当工作时长为m时,第一像素层31的亮度a小于第二像素层41的亮度A;当工作时长为2m时,第一像素层31的亮度b小于第二像素层41的亮度B,且亮度a与亮度b之间的差值远大于亮度A与亮度B之间的差值。由此可见,随着工作时长的增加,第一像素层31的亮度衰减程度会远大于第二像素层41的亮度衰减程度。
在102中,确定第一像素层的第一工作时长、以及第二像素层的第二工作时长。
在103中,根据第一对应关系和第一工作时长,确定在第一工作时长下第一像素层的第一当前亮度值,根据第二对应关系和第二工作时长,确定在第二工作时长下第二像素层的第二当前亮度值。
在不同的第一工作时长下、不同的第二工作时长下,第一像素层31和第二像素层41的亮度也会不同。根据第一对应关系和第一工作时长,可以确定在第一工作时长下第一像素层31的第一当前亮度值,根据第二对应关系和第二工作时长,可以确定在第二工作时长下第二像素层41的第二当前亮度值。
例如在图11中,当第一工作时长被确定后,根据第一亮度衰减曲线和第一工作时长可以确定出在第一工作时长下的第一像素层31的第一当前亮度值。同理,当第二工作时长被 确定后,根据第二亮度衰减曲线和第二工作时长可以确定出在第二工作时长下的第二像素层41的第二当前亮度值。
可以理解的是,第一像素层31处于工作状态下被点亮的第一工作时长、以及第二像素层41处于工作状态下被点亮的第二工作时长,可以根据显示装置100内部的时钟模块来确定。在实际生产中可以设置两个时钟模块来分别管理第一像素层31和第二像素层41的工作时长。
在104中,判断第一当前亮度值与第二当前亮度值的差值是否在预设范围内。
在105中,若是,则继续向第一像素层提供第一工作时长下的第一当前电压,继续向第二像素层提供第二工作时长下的第二当前电压。
在106中,若否,则向第一像素层提供第一供电电压,并向第二像素层提供第二供电电压,以使第一像素层的亮度与第二像素层的亮度相同。
当第一像素层31的第一当前亮度值与第二像素层41的第二当前亮度值的差值较小时,基于人体视觉误差,此时,第一显示区30和第二显示区40的显示效果的差异较小。因此,当第一当前亮度值与第二当前亮度值的差值在预设范围内时,则此时可以不用调节第一像素层31和第二像素层41的亮度,而继续向第一像素层31提供第一工作时长下的第一当前电压,继续向第二像素层41提供第二工作时长下的第二当前电压。
当第一像素层31的第一当前亮度值与第二像素层41的第二当前亮度值的差值较大时,此时,第一显示区30和第二显示区40的显示效果的差异较大。结合图11并请参考图12,其中,图12为本申请实施例提供的显示装置第一种显示状态变化图。如图12所示,如果不调整第一像素层31和第二像素层41的亮度,随着工作时长的增长,第一显示区30和第二显示区40的显示效果之间的界限越来越明显。例如工作时长2m时第一显示区30和第二显示区40之间的界限比工作时长m时第一显示区30和第二显示区40之间的界限更明显。
为了使第一显示区30和第二显示区40的显示效果一致,当第一当前亮度值与第二当前亮度值的差值不在预设范围内时,则需要调节第一像素层31和第二像素层41的亮度。具体的,可以向第一像素层31提供第一供电电压、向第二像素层41提供第二供电电压,以使第一像素层31的亮度与第二像素层41的亮度相同。
请参考图13和图14,其中,图13为本申请实施例提供的显示装置的第二种亮度衰减曲线图。图14为本申请实施例提供的显示装置的第二种显示状态变化图。在图13中,曲线S3为第一显示区30内第一像素层31的亮度衰减曲线,曲线S4表示第二显示区40内第二像素层41的亮度衰减曲线。当在工作时长m且检测到第一像素层31的第一当前亮度值与第二像素层41的第二当前亮度值的差值不在预设范围时,则可以向第一像素层31提供第一供电电压,使得第一像素层31的亮度由亮度a调整至亮度A,而同时可以向第二像素层41提供第二供电电压,使得第二像素层41的亮度保持为亮度A,进而,经过调整后,第一像素层31的亮度和第二像素层41的亮度相同。
可以理解的是,随着工作时长的增长,经过调整后的第一像素层31和第二像素层41之间的亮度差会继续增大,则此时需要再次对第一像素层31和第二像素层41的亮度进行调整。例如,当在工作时长2m时,检测到第一像素层31的第一当前亮度值与第二像素层41的第二当前亮度值的差值也不在预设范围时,则可以向第一像素层31提供另一第一供电电压,使得第一像素层31的亮度由零度b调整至亮度B,而同时可以向第二像素层41提供另一个第二供电电压,使得第二像素层41的亮度保持为亮度B,进而,经过调整后,第一像素层31的亮度也可以和第二像素层41的亮度相同。在实际的显示过程中,可以循环上述步骤,以多次调解第一像素层31和第二像素层41的亮度并使第一像素层31和第二像素层41之间不会存在明显的显示界线,避免了由于显示元件耗损差异较大导致的显示区域之间的残影现象,显示装置100的显示效果更好。
其中,第一显示区30可以包括第一电源输入层32和第一电源输入线33,第一电源输 入层32设置于第一像素层31的一侧,第一电源输入层32与第一像素层31的阴极电连接;第一电源输入线33设置于第一电源输入层32的周缘,第一电源输入层32通过第一电源输入线33与电源管理芯片10的负极电连接。同理,第二显示区40可以包括第二电源输入层42和第二电源输入线43,第二电源输入层42设置于第二像素层41的一侧,第二电源输入层42与第二像素层41的阴极电连接;第二电源输入线43设置于第二电源输入层42的周缘,第二电源输入层42通过第二电源输入线43与电源管理芯片10的负极电连接。
基于此,请参考图15,图15为本申请实施例提供的显示方法的第二种流程示意图。在步骤106中,本申请实施例的显示方法还可以包括:
在1061中,驱动控制芯片控制电源管理芯片通过第一电源输入线和第一电源输入层向第一像素层提供第一供电电压,驱动控制芯片控制电源管理芯片通过第二电源输入线和第二电源输入层向第二像素层提供第二供电电压,以使第一像素层的亮度与第二像素层的亮度相同。
驱动控制芯片20可以控制电源管理芯片10通过第一电源输入线33和第一电源输入层32向第一像素层31提供第一供电电压;驱动控制芯片20可以控制电源管理芯片10通过第二电源输入线43和第二电源输入层42向第二像素层41提供第二供电电压,此时,可以调整第一供电电压和第二供电电压的电压值,以使第一像素层31的亮度与第二像素层41的亮度相同。
其中,第一显示区30还可以包括第一输入电源35,第一输入电源35与第一像素层31的阳极电连接,第一输入电源35与电源管理芯片10的正极电连接。第二显示区40还可以包括第二输入电源45,第二输入电源45与第二像素层41的阳极电连接,第二输入电源45与电源管理芯片10的正极电连接。
基于此,请参考图16,图16为本申请实施例提供的显示方法的第三种流程示意图。在步骤106中,本申请实施例的显示方法还可以包括:
在1062中,控制电源管理芯片通过第一输入电源向第一像素层提供第一供电电压、并通过第二输入电源向第二像素层提供第二供电电压,以使第一像素层的亮度与第二像素层的亮度相同。
控制电源管理芯片10可以通过第一输入电源35向第一像素层31提供第一供电电压、并可以通过第二输入电源45向第二像素层41提供第二供电电压。此时,可以调整第一供电电压和第二供电电压的电压值,以使第一像素层31的亮度与第二像素层41的亮度相同。
其中,驱动控制芯片20可以分别与第一像素层31和第二像素层41电连接。
基于此,请参考图17,图17为本申请实施例提供的显示方法的第四种流程示意图。在步骤106中,本申请实施例的显示方法还可以包括:
在1063中,驱动控制芯片向第一像素层传输第一电压的数据信号、并向第二像素层传输第二电压的数据信号,以使第一像素层的亮度与第二像素层的亮度相同。
驱动控制芯片20可以向第一像素层31传输第一电压的数据信号、并用于向第二像素层41传输第二电压的数据信号。此时,可以调整第一供电电压和第二供电电压的电压值,以使第一像素层31的亮度与第二像素层41的亮度相同。
以上对本申请实施例提供显示装置、电子设备及显示方法进行了详细介绍。本文中应用了具体个例对本申请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申请。显然,所描述的实施例仅仅是本申请一部分实施例,而不是全部的实施例。基于本申请中的实施例,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,都属于本申请保护的范围。同时,对于本领域的技术人员,依据本申请的思想,在具体实施方式及应用范围上均会有改变之处,综上所述,本说明书内容不应理解为对本申请的限制。

Claims (20)

  1. 一种显示装置,包括:
    第一显示区,所述第一显示区包括第一像素层;
    第二显示区,所述第二显示区包括第二像素层;
    电源管理芯片,所述电源管理芯片分别与所述第一像素层和所述第二像素层电连接;及
    驱动控制芯片,所述驱动控制芯片与所述电源管理芯片电连接,所述驱动控制芯片用于控制所述电源管理芯片向所述第一像素层提供第一供电电压、向所述第二像素层提供第二供电电压,以使所述第一像素层的亮度与所述第二像素层的亮度相同。
  2. 根据权利要求1所述的显示装置,其中,所述第一显示区还包括:
    第一电源输入层,所述第一电源输入层设置于所述第一像素层的一侧,所述第一电源输入层与所述第一像素层的阴极电连接;及
    第一电源输入线,所述第一电源输入线设置于所述第一电源输入层的周缘,所述第一电源输入层通过所述第一电源输入线与所述电源管理芯片的负极电连接;
    所述驱动控制芯片用于控制所述电源管理芯片通过所述第一电源输入线和所述第一电源输入层向所述第一像素层提供所述第一供电电压。
  3. 根据权利要求2所述的显示装置,其中,所述第二显示区还包括:
    第二电源输入层,所述第二电源输入层设置于所述第二像素层的一侧,所述第二电源输入层与所述第二像素层的阴极电连接;及
    第二电源输入线,所述第二电源输入线设置于所述第二电源输入层的周缘,所述第二电源输入层通过所述第二电源输入线与所述电源管理芯片的负极电连接;
    所述驱动控制芯片用于控制所述电源管理芯片通过所述第二电源输入线和所述第二电源输入层向所述第二像素层提供所述第二供电电压。
  4. 根据权利要求3所述的显示装置,其中,还包括:
    第一连接点,所述第一电源输入线通过所述第一连接点与所述电源管理芯片的负极电连接;及
    第二连接点,所述第二电源输入线通过所述第二连接点与所述电源管理芯片的负极电连接。
  5. 根据权利要求1所述的显示装置,其中,所述第一显示区还包括:
    第一输入电源,所述第一输入电源与所述第一像素层的阳极电连接,所述第一输入电源也与所述电源管理芯片的正极电连接;
    所述驱动控制芯片用于控制所述电源管理芯片通过所述第一输入电源向所述第一像素层提供所述第一供电电压。
  6. 根据权利要求5所述的显示装置,其中,所述第二显示区还包括:
    第二输入电源,所述第二输入电源与所述第二像素层的阳极电连接,所述第二输入电源也与所述电源管理芯片的正极电连接;
    所述驱动控制芯片用于控制所述电源管理芯片通过所述第二输入电源向所述第二像素层提供所述第二供电电压。
  7. 根据权利要求1所述的显示装置,其中,所述驱动控制芯片分别与所述第一像素层和所述第二像素层电连接,所述驱动控制芯片用于向所述第一像素层传输第一电压的数据信号、并用于向所述第二像素层传输第二电压的数据信号,以使所述第一像素层的亮度与所述第二像素层的亮度相同。
  8. 根据权利要求1所述的显示装置,其中,还包括:
    输入输出接口,所述驱动控制芯片通过所述输入输出接口与所述电源管理芯片电连接。
  9. 一种电子设备,包括显示装置和电路板,所述电路板与所述显示装置电连接,所述电路板用于控制所述显示装置显示信息;所述显示装置包括:
    第一显示区,所述第一显示区包括第一像素层;
    第二显示区,所述第二显示区包括第二像素层;
    电源管理芯片,所述电源管理芯片分别与所述第一像素层和所述第二像素层电连接;及
    驱动控制芯片,所述驱动控制芯片与所述电源管理芯片电连接,所述驱动控制芯片用于控制所述电源管理芯片向所述第一像素层提供第一供电电压、向所述第二像素层提供第二供电电压,以使所述第一像素层的亮度与所述第二像素层的亮度相同。
  10. 根据权利要求9所述的电子设备,其中,所述第一显示区还包括:
    第一电源输入层,所述第一电源输入层设置于所述第一像素层的一侧,所述第一电源输入层与所述第一像素层的阴极电连接;及
    第一电源输入线,所述第一电源输入线设置于所述第一电源输入层的周缘,所述第一电源输入层通过所述第一电源输入线与所述电源管理芯片的负极电连接;
    所述驱动控制芯片用于控制所述电源管理芯片通过所述第一电源输入线和所述第一电源输入层向所述第一像素层提供所述第一供电电压。
  11. 根据权利要求10所述的电子设备,其中,所述第二显示区还包括:
    第二电源输入层,所述第二电源输入层设置于所述第二像素层的一侧,所述第二电源输入层与所述第二像素层的阴极电连接;及
    第二电源输入线,所述第二电源输入线设置于所述第二电源输入层的周缘,所述第二电源输入层通过所述第二电源输入线与所述电源管理芯片的负极电连接;
    所述驱动控制芯片用于控制所述电源管理芯片通过所述第二电源输入线和所述第二电源输入层向所述第二像素层提供所述第二供电电压。
  12. 根据权利要求11所述的电子设备,其中,还包括:
    第一连接点,所述第一电源输入线通过所述第一连接点与所述电源管理芯片的负极电连接;及
    第二连接点,所述第二电源输入线通过所述第二连接点与所述电源管理芯片的负极电连接。
  13. 根据权利要求9所述的电子设备,其中,所述第一显示区还包括:
    第一输入电源,所述第一输入电源与所述第一像素层的阳极电连接,所述第一输入电源也与所述电源管理芯片的正极电连接;
    所述驱动控制芯片用于控制所述电源管理芯片通过所述第一输入电源向所述第一像素层提供所述第一供电电压。
  14. 根据权利要求13所述的电子设备,其中,所述第二显示区还包括:
    第二输入电源,所述第二输入电源与所述第二像素层的阳极电连接,所述第二输入电源也与所述电源管理芯片的正极电连接;
    所述驱动控制芯片用于控制所述电源管理芯片通过所述第二输入电源向所述第二像素层提供所述第二供电电压。
  15. 根据权利要求9所述的电子设备,其中,所述驱动控制芯片分别与所述第一像素层和所述第二像素层电连接,所述驱动控制芯片用于向所述第一像素层传输第一电压的数据信号、并用于向所述第二像素层传输第二电压的数据信号,以使所述第一像素层的亮度与所述第二像素层的亮度相同。
  16. 根据权利要求9所述的电子设备,其中,还包括:
    输入输出接口,所述驱动控制芯片通过所述输入输出接口与所述电源管理芯片电连接。
  17. 一种显示方法,应用于电子设备内,所述电子设备包括显示装置和电路板,所述电路板与所述显示装置电连接,所述电路板用于控制所述显示装置显示信息;所述显示装置包括:
    第一显示区,所述第一显示区包括第一像素层;
    第二显示区,所述第二显示区包括第二像素层;
    电源管理芯片,所述电源管理芯片分别与所述第一像素层和所述第二像素层电连接;及
    驱动控制芯片,所述驱动控制芯片与所述电源管理芯片电连接,所述驱动控制芯片用于控制所述电源管理芯片向所述第一像素层提供第一供电电压、向所述第二像素层提供第二供电电压,以使所述第一像素层的亮度与所述第二像素层的亮度相同;
    所述显示方法包括:
    设置所述第一像素层的工作时长与显示亮度的第一对应关系,以及设置所述第二像素层的工作时长与显示亮度的第二对应关系;
    确定所述第一像素层的第一工作时长、以及所述第二像素层的第二工作时长;
    根据所述第一对应关系和所述第一工作时长,确定在所述第一工作时长下所述第一像素层的第一当前亮度值;
    根据所述第二对应关系和所述第二工作时长,确定在所述第二工作时长下所述第二像素层的第二当前亮度值;
    判断所述第一当前亮度值与所述第二当前亮度值的差值是否在预设范围内;
    若是,则继续向所述第一像素层提供所述第一工作时长下的第一当前电压,继续向所述第二像素层提供所述第二工作时长下的第二当前电压;
    若否,则向所述第一像素层提供所述第一供电电压,并向所述第二像素层提供所述第二供电电压,以使所述第一像素层的亮度与所述第二像素层的亮度相同。
  18. 根据权利要求17所述的显示方法,其中,所述第一显示区还包括:
    第一电源输入层,所述第一电源输入层设置于所述第一像素层的一侧,所述第一电源输入层与所述第一像素层的阴极电连接;及
    第一电源输入线,所述第一电源输入线设置于所述第一电源输入层的周缘,所述第一电源输入层通过所述第一电源输入线与所述电源管理芯片的负极电连接;
    所述第二显示区还包括:
    第二电源输入层,所述第二电源输入层设置于所述第二像素层的一侧,所述第二电源输入层与所述第二像素层的阴极电连接;及
    第二电源输入线,所述第二电源输入线设置于所述第二电源输入层的周缘,所述第二电源输入层通过所述第二电源输入线与所述电源管理芯片的负极电连接;
    所述若否,则向所述第一像素层提供所述第一供电电压,并向所述第二像素层提供所述第二供电电压,包括:
    所述驱动控制芯片控制所述电源管理芯片通过所述第一电源输入线和所述第一电源输入层向所述第一像素层提供所述第一供电电压;
    所述驱动控制芯片控制所述电源管理芯片通过所述第二电源输入线和所述第二电源输入层向所述第二像素层提供所述第二供电电压。
  19. 根据权利要求17所述的显示方法,其中,所述第一显示区还包括:
    第一输入电源,所述第一输入电源与所述第一像素层的阳极电连接,所述第一输入电源也与所述电源管理芯片的正极电连接;
    所述第二显示区还包括:
    第二输入电源,所述第二输入电源与所述第二像素层的阳极电连接,所述第二输入电 源也与所述电源管理芯片的正极电连接;
    所述若否,则向所述第一像素层提供所述第一供电电压,并向所述第二像素层提供所述第二供电电压,包括:
    所述驱动控制芯片控制所述电源管理芯片通过所述第一输入电源向所述第一像素层提供所述第一供电电压;
    所述驱动控制芯片控制所述电源管理芯片通过所述第二输入电源向所述第二像素层提供所述第二供电电压。
  20. 根据权利要求17所述的显示方法,其中,所述驱动控制芯片分别与所述第一像素层和所述第二像素层电连接;
    若否,则向所述第一像素层提供所述第一供电电压,并向所述第二像素层提供所述第二供电电压,包括:
    所述驱动控制芯片向所述第一像素层传输第一电压的数据信号、并用于向所述第二像素层传输第二电压的数据信号。
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