CN114758620A - Display module, driving method thereof and display device - Google Patents

Display module, driving method thereof and display device Download PDF

Info

Publication number
CN114758620A
CN114758620A CN202210444658.6A CN202210444658A CN114758620A CN 114758620 A CN114758620 A CN 114758620A CN 202210444658 A CN202210444658 A CN 202210444658A CN 114758620 A CN114758620 A CN 114758620A
Authority
CN
China
Prior art keywords
sub
electrically connected
display area
signal line
pixels
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN202210444658.6A
Other languages
Chinese (zh)
Other versions
CN114758620B (en
Inventor
李军
余志华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuhan Tianma Microelectronics Co Ltd
Original Assignee
Wuhan Tianma Microelectronics Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wuhan Tianma Microelectronics Co Ltd filed Critical Wuhan Tianma Microelectronics Co Ltd
Priority to CN202210444658.6A priority Critical patent/CN114758620B/en
Publication of CN114758620A publication Critical patent/CN114758620A/en
Application granted granted Critical
Publication of CN114758620B publication Critical patent/CN114758620B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/04—Structural and physical details of display devices
    • G09G2300/0439—Pixel structures
    • G09G2300/0443—Pixel structures with several sub-pixels for the same colour in a pixel, not specifically used to display gradations
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management

Landscapes

  • 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)
  • Electroluminescent Light Sources (AREA)

Abstract

The embodiment of the application provides a display module, a driving method thereof and a display device, wherein the display module comprises a display panel and a first driving module, the display panel comprises a first display area and a second display area, and the first driving module is electrically connected with a plurality of sub-pixels in the first display area; in the first mode, the second display area is in a screen-off state, and the first driving module provides voltage signals for at least part of sub-pixels in the first display area so that at least part of sub-pixels in the first display area emit light. The embodiment of the application can reduce the power consumption of the display module.

Description

Display module, driving method thereof and display device
Technical Field
The application belongs to the technical field of display, and particularly relates to a display module, a driving method thereof and a display device.
Background
In the process of continuously pursuing large screen ratio of the terminal, people put forward the concept of 'full screen'. The full-screen is literally explained that the front of the display screen is completely the screen, and the four frame positions of the display screen are designed without frames, so that the screen occupation ratio is close to 100%. But actually is limited by the current technology, is only a display screen with an ultrahigh screen ratio for the moment, and cannot achieve the effect that the front screen ratio of the display screen is 100%. Therefore, the current full-screen display device is a display device with a screen percentage of more than 90% and an ultra-narrow frame design.
The research of the inventor of the application finds that the current full-screen has the problem of larger power consumption when prompting a user to receive unread messages or missed calls.
Disclosure of Invention
The embodiment of the application provides a display module, a driving method thereof and a display device, and power consumption of the display module can be reduced.
In a first aspect, an embodiment of the present application provides a display module, where the display module includes a display panel and a first driving module, the display panel includes a first display area and a second display area, and the first driving module is electrically connected to a plurality of sub-pixels in the first display area; in the first mode, the second display area is in a screen-off state, and the first driving module provides voltage signals to at least part of sub-pixels in the first display area so as to enable at least part of sub-pixels in the first display area to emit light.
In a second aspect, an embodiment of the present application provides a driving method for a display module, where the display module includes a display panel and a first driving module, the display panel includes a first display area and a second display area, the first driving module is electrically connected to a plurality of sub-pixels in the first display area, and in a first mode, the second display area is in a screen refreshing state; the driving method is applied to the first driving module and comprises the following steps: in the first mode, a voltage signal is provided to at least part of the sub-pixels in the first display area, so that at least part of the sub-pixels in the first display area emit light.
In a third aspect, an embodiment of the present application provides a display device, which includes the display module provided in the first aspect.
The display module comprises a display panel and a first driving module, wherein the display panel comprises a first display area and a second display area, and the first driving module is electrically connected with a plurality of sub-pixels in the first display area; in the first mode, the second display area is in a screen-off state, and the first driving module provides voltage signals to at least part of sub-pixels in the first display area so as to enable at least part of sub-pixels in the first display area to emit light. On one hand, the first display area in the display panel serves as a breathing lamp, so that an LED lamp does not need to be additionally arranged on the display panel, and the problem that the whole screen does not have the breathing lamp can be solved; on the other hand, in the first mode, since only at least part of the sub-pixels in the first display region emit light and the second display region does not emit light, power consumption of the display panel can be reduced; in yet another aspect, in the first mode, the first driving module supplies the voltage signal only to at least a portion of the subpixels in the first display region without supplying the voltage signal to the subpixels in the second display region, so that power consumption of the driving module (including the first driving module) can be reduced as a whole.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments of the present application will be briefly described below, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of a full-screen display in the related art;
FIG. 2 is another schematic view of a full-screen display of the related art;
fig. 3 is a schematic structural diagram of a display module according to an embodiment of the present disclosure;
fig. 4 is another schematic structural diagram of a display module according to an embodiment of the present disclosure;
fig. 5 is a schematic structural diagram of a display module according to an embodiment of the present disclosure;
fig. 6 is a schematic structural diagram of a display module according to an embodiment of the present disclosure;
fig. 7 is a schematic structural diagram of a display module according to an embodiment of the present disclosure;
fig. 8 is a schematic circuit diagram of a display module according to an embodiment of the present disclosure;
fig. 9 is a schematic circuit diagram of a display module according to an embodiment of the disclosure;
FIG. 10 is a timing diagram of a pixel circuit in the display module shown in FIG. 9;
fig. 11 is a schematic top view of a display module according to an embodiment of the present disclosure;
Fig. 12 is another schematic top view of a display module according to an embodiment of the disclosure;
fig. 13 is a schematic top view illustrating a display module according to an embodiment of the present disclosure;
fig. 14 is a schematic top view illustrating a display module according to an embodiment of the present disclosure;
fig. 15 is a schematic flowchart illustrating a driving method of a display module according to an embodiment of the present disclosure;
FIG. 16 is a timing diagram of a pixel circuit in the display module shown in FIG. 8;
FIG. 17 is another timing diagram of the pixel circuit in the display module shown in FIG. 8;
FIG. 18 is a timing diagram illustrating another timing diagram of a pixel circuit in the display module shown in FIG. 8;
FIG. 19 is a timing diagram illustrating another timing diagram of a pixel circuit in the display module shown in FIG. 8;
fig. 20 is a schematic structural diagram of a display device according to an embodiment of the present application.
Detailed Description
Features and exemplary embodiments of various aspects of the present application will be described in detail below, and in order to make objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are intended to be illustrative only and are not intended to be limiting. It will be apparent to one skilled in the art that the present application may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present application by illustrating examples thereof.
It should be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of additional identical elements in the process, method, article, or apparatus that comprises the element.
It should be understood that the term "and/or" as used herein is merely a relationship that describes an associated object, meaning that three relationships may exist, e.g., a and/or B, may represent: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter associated objects are in an "or" relationship.
In addition, although the transistors in the embodiments of the present application are described by taking P-type transistors as examples, the transistors are not limited to P-type transistors, and N-type transistors may be used instead. For an N-type transistor, the on level is high and the off level is low. That is, when the gate of the N-type transistor is at a high level, the first pole and the second pole are turned on, and when the gate of the N-type transistor is at a low level, the first pole and the second pole are turned off. For a P-type transistor, the on level is low and the off level is high. That is, when the control terminal of the P-type transistor is at a low level, the first pole and the second pole of the P-type transistor are turned on, and when the control terminal of the P-type transistor is at a high level, the first pole and the second pole of the P-type transistor are turned off. In a specific implementation, the gate of each transistor is used as its control electrode, and according to the signal of the gate of each transistor and its type, the first electrode of each transistor can be used as its source and the second electrode as its drain, or the first electrode of each transistor can be used as its drain and the second electrode as its source, which are not distinguished herein.
In the embodiments of the present application, the term "electrically connected" may mean that two components are directly electrically connected, or may mean that two components are electrically connected to each other via one or more other components.
It will be apparent to those skilled in the art that various modifications and variations can be made in the present application without departing from the spirit or scope of the application. Thus, it is intended that the present application cover the modifications and variations of this application provided they come within the scope of the corresponding claims (the claimed subject matter) and their equivalents. It should be noted that the embodiments provided in the embodiments of the present application can be combined with each other without contradiction.
Before explaining the technical solutions provided by the embodiments of the present application, in order to facilitate understanding of the embodiments of the present application, the present application first specifically explains the problems existing in the prior art:
as described above, the full-screen is literally interpreted that the front of the display screen is entirely the screen, and the four frame positions of the display screen are designed without frames, so that the screen occupation ratio close to 100% is pursued. For the non-full screen, as the requirement of the non-full screen on the screen occupation ratio is relatively low, a certain space can be reserved on the screen for arranging the LED lamp, and the LED lamp is used as a breathing lamp. For example, when the electronic device receives a message, it may be prompted for the entry of the message by a "breathing light" on the non-full screen.
However, for a full-screen, since the screen of the full-screen accounts for approximately 100%, and almost all of the front surface of the display screen is the screen, there is no extra space for disposing the LED lamp as a "breathing lamp". Thus, as shown in FIG. 1, when the electronic device receives a message, the entire screen of the full screen is lit. Alternatively, as shown in FIG. 2, when the electronic device receives a message, the perimeter of the screen may light up. In both the method shown In fig. 1 and the method shown In fig. 2, when the electronic device receives a message, the driver chip needs to enter a Display (Display) mode from a Sleep In mode, and the function of the driver chip is fully opened, which results In an increase In power consumption of the driver chip; in addition, the scan driving circuit and the data driving circuit on the display panel need to work normally, the power consumption of the display panel is increased, and the service life of the display panel is reduced.
In view of the above research of the inventor, the embodiment of the present application provides a display module, a driving method thereof, and a display device, which can solve the technical problems of large power consumption and short service life of the display module (such as a full-face screen) in the related art.
The technical idea of the embodiment of the application is as follows: the first display area of the display panel is used as a breathing lamp, when in the first mode, the second display area of the display panel is in a screen-off state, and the first driving module provides voltage signals for at least part of sub-pixels in the first display area so as to enable at least part of sub-pixels in the first display area to emit light. On one hand, the first display area in the display panel serves as a breathing lamp, so that an LED lamp does not need to be additionally arranged on the display panel, and the problem that the whole screen does not have the breathing lamp can be solved; on the other hand, in the first mode, since only at least part of the sub-pixels in the first display region emit light and the second display region does not emit light, power consumption of the display panel can be reduced; in yet another aspect, in the first mode, the first driving module supplies the voltage signal only to at least a portion of the subpixels in the first display region without supplying the voltage signal to the subpixels in the second display region, so that power consumption of the driving module (including the first driving module) can be reduced as a whole.
First, a display module provided in an embodiment of the present application will be described below.
Fig. 3 is a schematic structural diagram of a display module according to an embodiment of the present disclosure. As shown in fig. 3, the display module 30 provided in the embodiment of the present disclosure includes a display panel 01 and a first driving module 02, where the display panel 01 includes a first display area a1 and a second display area a 2. Both the first display region a1 and the second display region a2 may be provided with sub-pixels, and the area of the second display region a2 may be greater than that of the first display region a 1. Among them, the second display area a2 can be understood as a normal display area. In the embodiment of the present application, the first driving module 02 is electrically connected to the plurality of sub-pixels PX in the first display area a 1.
In the first mode, the second display area a2 is in the screen-rest state, and the first driving module 02 supplies voltage signals to at least some of the sub-pixels PX in the first display area a1 to make at least some of the sub-pixels PX in the first display area a1 emit light. The first mode may also be referred to as an Always On Display (AOD) mode, that is, when the Display panel 01 is in the first mode, only the first Display area a1 is displayed, and the second Display area a2 is not displayed.
The display module comprises a display panel and a first driving module, wherein the display panel comprises a first display area and a second display area, and the first driving module is electrically connected with a plurality of sub-pixels in the first display area; in the first mode, the second display area is in a screen-off state, and the first driving module provides voltage signals to at least part of sub-pixels in the first display area so as to enable at least part of sub-pixels in the first display area to emit light. On one hand, the first display area in the display panel serves as a 'breathing lamp', so that an LED lamp does not need to be additionally arranged on the display panel, and the problem that the 'breathing lamp' does not exist in the whole screen can be solved; on the other hand, in the first mode, since only at least part of the sub-pixels in the first display region emit light and the second display region does not emit light, power consumption of the display panel can be reduced; in yet another aspect, in the first mode, the first driving module supplies the voltage signal only to at least a portion of the subpixels in the first display region without supplying the voltage signal to the subpixels in the second display region, so that power consumption of the driving module (including the first driving module) can be reduced as a whole.
The following describes a circuit structure of a display module according to an embodiment of the present application in detail with reference to some specific embodiments of the present application.
Fig. 4 is another schematic structural diagram of a display module according to an embodiment of the disclosure. As shown in fig. 4, in some specific embodiments, the display panel 01 may include a scan signal line S and a data signal line data, and the first driving module 02 may include a scan signal output terminal SoutAnd a data signal output terminal dataout. The scanning signal lines S are respectively connected with the scanning signal output terminals SoutThe subpixels PX in the first display area a1 are electrically connected for transmitting a scan signal to the subpixels PX in the first display area a 1. Data signal lines data respectively connected with the data signal output terminals dataoutIn the first display area A1The sub-pixels PX are electrically connected for transmitting data signals to the sub-pixels PX in the first display area a 1. Here, the sub-pixel PX may include a pixel circuit and a light emitting element, the pixel circuit including a transistor that may be turned on under the control of a scan signal to transmit a data signal to the light emitting element through the turned-on transistor, thereby causing the light emitting element in the sub-pixel PX to emit light.
Accordingly, in the first mode, the scanning signal output terminal S outThe scan signal may be supplied to the sub-pixel PX in the first display area a1 through the scan signal line S, and the data signal output terminal dataoutThe data signal is supplied to the subpixels PX in the first display area a1 through the data signal line data to make at least some of the subpixels in the first display area a1 emit light.
With continued reference to fig. 4, according to some embodiments of the present application, optionally, a plurality of sub-pixels PX in the first display area a1 may be electrically connected to the same scanning signal line S. That is, one scan signal line S may transmit a scan signal to all the subpixels PX in the first display area a1 while turning on the transistors in all the subpixels PX in the first display area a 1. For example, the sub-pixels PX in the first display area a1 may include a red sub-pixel R, a green sub-pixel G, and a blue sub-pixel B. All of the red, green and blue sub-pixels R, G and B in the first display area a1 may be electrically connected to the same scanning signal line S, and the scanning signal transmitted through the one scanning signal line S simultaneously turns on the transistors in the red, green and blue sub-pixels R, G and B in the first display area a 1.
Therefore, on one hand, the number of scanning signal lines and the wiring length in the display panel can be reduced, which is beneficial to saving wiring space and saving production cost; on the other hand, the number of the scan signal output terminals S of the first driving module can be reduced outThe number of the first driving modules is reduced, and the use cost of the first driving modules is reduced.
Fig. 5 is a schematic structural diagram of another display module according to an embodiment of the present disclosure. As shown in fig. 5, unlike the embodiment shown in fig. 4, according to further embodiments of the present application, optionally, the scanning signalThe line S may include M sub-scanning signal lines S1～SMOutput terminal S of scanning signaloutMay include M sub-scanning signal output terminals Sout1～SoutMM sub-scanning signal lines S1～SMAnd M sub-scanning signal output terminals Sout1～SoutMThe M is more than 1 and is an integer. The first display area a1 may include M color sub-pixels PX, M color sub-pixels PX and M sub-scanning signal lines S1～SMIn one-to-one correspondence, the sub-pixels of the same color in the first display area a1 are electrically connected to the same sub-scanning signal line, and the sub-pixels of different colors in the first display area a1 are electrically connected to different sub-scanning signal lines.
For example, the sub-pixels PX in the first display area a1 may include a red sub-pixel R, a green sub-pixel G, and a blue sub-pixel B. All the red sub-pixels R and the sub-scanning signal lines S in the first display area A11All the green sub-pixels G in the first display area A1 are electrically connected to the sub-scanning signal lines S 2All the blue sub-pixels B in the first display area A1 are electrically connected with the sub-scanning signal lines S3And (6) electrically connecting. Through a sub-scanning signal line S1The transmitted scan signal may simultaneously turn on the transistors in all the red subpixels R in the first display area a 1. Through a sub-scanning signal line S2The transmitted scan signal may simultaneously turn on the transistors in all the green subpixels G in the first display area a 1. Through a sub-scanning signal line S3The transmitted scan signal may simultaneously turn on the transistors in all the blue subpixels B in the first display area a 1.
In this way, since the sub-pixels of different colors of RGB in the first display area a1 are electrically connected to different sub-scanning signal lines, when the first display area a1 displays a red image, only the scanning signal is provided to the red sub-pixel R, and the scanning signals are not required to be provided to all of the red sub-pixel R, the green sub-pixel G, and the blue sub-pixel B, so as to further reduce the power consumption of the first driving module and the scanning driving circuit in the display panel.
With continued reference to fig. 4, according to some embodiments of the present application, optionally, a plurality of sub-pixels PX in the first display area a1 may be electrically connected to the same data signal line data. That is, one data signal line data may transmit a data signal to all the subpixels PX in the first display area a1 such that all the subpixels PX in the first display area a1 emit light at the same time. For example, the sub-pixels PX in the first display area a1 may include a red sub-pixel R, a green sub-pixel G, and a blue sub-pixel B. All of the red, green and blue sub-pixels R, G and B in the first display area a1 may be electrically connected to the same data signal line data, and the data signal transmitted through the one data signal line data simultaneously lights up the light emitting elements in the red, green and blue sub-pixels R, G and B in the first display area a 1.
When receiving unread messages or missed calls, the display module enters a first mode. In the first mode, the user may be prompted of an unread message or a missed call by only illuminating the first display area a 1. Therefore, in the first mode, the red, green and blue sub-pixels R, G and B may input the same data voltage as long as the red, green and blue sub-pixels R, G and B are ensured to emit light.
Therefore, on one hand, the number of data signal lines and the wiring length in the display panel can be reduced, which is beneficial to saving wiring space and saving production cost; on the other hand, the data signal output terminal data on the first driving module can be reducedoutThe number of the first driving modules is reduced, and the use cost of the first driving modules is reduced.
Fig. 6 is a schematic structural diagram of a display module according to an embodiment of the present disclosure. As shown in fig. 6, unlike the embodiment shown in fig. 4, according to other embodiments of the present application, the data signal line data may optionally include N sub-data signal lines data1～dataNData signal output terminal dataoutMay include N sub-data signal output terminals dataout1～dataoutNN sub data signal lines data1～dataNAnd N sub-data signal output terminals data out1～dataoutNOne-to-one corresponding electrical connection, N is greater than 1 and is integralAnd (4) counting. The first display area A1 may include N color sub-pixels, N color sub-pixels and N sub-data signal lines data1～dataNIn one-to-one correspondence, the sub-pixels of the same color in the first display area a1 are electrically connected to the same sub-data signal line, the sub-pixels of different colors in the first display area a1 are electrically connected to different sub-data signal lines,
for example, the sub-pixels PX in the first display area a1 may include a red sub-pixel R, a green sub-pixel G, and a blue sub-pixel B. All the red subpixels R in the first display area a1 may be connected with the sub data signal line data1Electrically connected, all the green subpixels G in the first display area a1 may be connected with the sub data signal line data2Electrically connected, all the blue subpixels B in the first display area a1 may be connected with the sub data signal line data3And (6) electrically connecting. Through a sub-data signal line data1The transmitted data signal may simultaneously light the light emitting elements in all the red subpixels R in the first display area a 1. Through a sub-data signal line data2The transmitted data signal may simultaneously turn on the light emitting elements in all the green subpixels G in the first display area a 1. Through a sub-data signal line data 1The transmitted data signal may simultaneously light the light emitting elements in all the blue subpixels B in the first display area a 1. Data with sub-data signal line1For example, the sub data signal lines data may be arranged in a first direction (e.g., a column direction)1May be electrically connected to the plurality of red subpixels R arranged in the first direction.
Therefore, on the one hand, compared with the scheme that N rows of sub-pixels need N sub-data signal lines in the related art, the sub-pixels of the same color are electrically connected with the same sub-data signal line in the embodiment of the present application, so that the number of the sub-data signal lines can be greatly reduced, the wiring space can be saved, the production cost can be saved, and the data signal output terminal data on the first driving module can be reducedoutThe number of the first driving modules is reduced, and the use cost of the first driving modules is reduced; on the other hand, since the sub-pixels of different colors of RGB in the first display area a1 are electrically connected to the different sub-data signal lines, the first display area a1 displays red colorDuring the image, only the data signal is provided to the red sub-pixel R, and the data signal is not required to be provided to all of the red sub-pixel R, the green sub-pixel G and the blue sub-pixel B, so as to further reduce the power consumption of the first driving module and the data driving circuit in the display panel.
Fig. 7 is a schematic structural diagram of another display module according to an embodiment of the present disclosure. As shown in fig. 7, the display panel 01 may further include a first power voltage signal line PVDD and a second power voltage signal line PVEE. The first power voltage signal line PVDD may be configured to transmit a positive voltage signal, and the second power voltage signal line PVEE may be configured to transmit a negative voltage signal. Accordingly, the first driving module 02 may further include a first power voltage signal output terminal PVDDoutAnd a second power supply voltage signal output terminal PVEEout. First power supply voltage signal line PVDD and first power supply voltage signal output terminal PVDDoutElectrically connected to the second power supply voltage signal line PVEE and the second power supply voltage signal output terminal PVEEoutAnd (6) electrically connecting.
In the embodiment shown in fig. 7, a plurality of sub-pixels PX in the first display area a1 may be electrically connected to the same first power voltage signal line PVDD. That is, one first power voltage signal line PVDD may provide a forward voltage signal to all the subpixels PX in the first display area a 1. And/or, the plurality of sub-pixels PX in the first display area a1 are electrically connected to the same second power voltage signal line PVEE. That is, one second power voltage signal line PVEE may supply negative voltage signals to all the sub-pixels PX in the first display area a 1.
Therefore, on one hand, the number and the wiring length of the first power supply voltage signal line PVDD and/or the second power supply voltage signal line PVEE in the display panel can be reduced, so that the wiring space and the production cost are saved; on the other hand, the first power supply voltage signal output terminal PVDD on the first driving module can be reducedoutAnd/or second power supply voltage signal output terminal PVEEoutThe number of the first driving modules is reduced, and the use cost of the first driving modules is reduced.
For convenience of understanding, the circuit structure of the display module according to the embodiment of the present application is described in detail below with reference to the 2T1C pixel circuit and the 7T1C pixel circuit.
Fig. 8 is a schematic circuit diagram of a display module according to an embodiment of the disclosure. As shown in fig. 8, according to some embodiments of the present application, the sub-pixel PX in the first display area a1 may optionally include a pixel circuit 80 and a light emitting element 81. Taking the 2T1C pixel circuit as an example, the pixel circuit 80 may include a driving transistor M1, a data writing transistor M2, and a storage capacitor Cst. A first electrode of the driving transistor M1 is electrically connected to the first power supply voltage signal line PVDD, and a second electrode of the driving transistor M1 is electrically connected to the first electrode of the light emitting element 81. The gate of the data write transistor M2 is electrically connected to the scan signal line S, the first pole of the data write transistor M2 is electrically connected to the data signal line data, and the second pole of the data write transistor M2 is electrically connected to the gate of the drive transistor M1. A first plate of the storage capacitor Cst is electrically connected to the gate electrode of the driving transistor M1, and a second plate of the storage capacitor Cst is electrically connected to the first power voltage signal line PVDD. The second pole of the light emitting element 81 is electrically connected to the second power voltage signal line PVEE. Here, the first electrode of the light emitting element 81 may be an anode, and the second electrode of the light emitting element 81 may be a cathode. The light emitting element 81 includes, but is not limited to, an organic light emitting diode OLED.
The sub-pixels PX in the first display area a1 may include red, green and blue sub-pixels R, G and B. All the subpixels PX (including the red, green, and blue subpixels R, G, and B) in the first display area a1 may be electrically connected to the same one first power voltage signal line PVDD, which may be connected to the first power voltage signal output terminal PVDD on the first driving module 02outAnd (6) electrically connecting. All the subpixels PX in the first display area a1 may be electrically connected to the same second power voltage signal line PVEE, and the same second power voltage signal line PVEE may be connected to the second power voltage signal output terminal PVEE of the first driving module 02outAnd (6) electrically connecting. All the sub-pixels PX in the first display area a1 may be electrically connected to the same scanning signal line S, and the scanning signal line S may be connected to the scanning signal output terminal S of the first driving module 02outAnd (6) electrically connecting. First displayAll of the red subpixels R in the area A1 may be connected with the sub data signal line data1Electrically connected, sub-data signal lines data1Can be connected with a subdata signal output terminal data on the first driving module 02out1And (6) electrically connecting. All the green subpixels G in the first display area a1 may be connected with the sub data signal line data 2Electrically connected, sub-data signal lines data2Can be connected with the subdata signal output terminal data on the first drive module 02out2And (6) electrically connecting. All of the blue sub-pixels B in the first display area A1 may be connected with the sub-data signal lines data3Electrically connected, sub-data signal lines data3Can be connected with the subdata signal output terminal data on the first drive module 02out3And (6) electrically connecting.
In the first mode, the first power supply voltage signal output terminal PVDDoutProviding a forward voltage signal, such as a +4.6V voltage signal; second power supply voltage signal output terminal PVEEoutProviding a negative voltage signal, such as a-2.7V voltage signal. Scanning signal output terminal SoutProviding a conduction level (e.g., a low level), sub data signal output terminal dataout1～dataout3At least one of which provides a turn-on level (e.g., a low level). The data write transistor M2 outputs the terminal S in response to the scan signaloutProvided with a conduction level to be conducted, and a sub data signal output terminal dataout1～dataout3At least one of which provides a turn-on level that is transmitted through the data write transistor M2 to the gate of the drive transistor M1, the drive transistor M1 turns on. First power supply voltage signal output terminal PVDDoutThe supplied forward voltage signal is transmitted to the light emitting element 81 through the first power voltage signal line PVDD and the driving transistor M1, thereby causing at least one of the red, green, and blue sub-pixels R, G, and B in the first display region a1 to emit light.
Fig. 9 is a schematic circuit diagram of a display module according to an embodiment of the disclosure. As shown in fig. 9, according to some embodiments of the present application, optionally, taking 7T1C pixel circuits as an example, the display panel 01 may further include a light emission control signal line EM and a reference voltage signal line vref. Correspondingly, the first drive module 02 also hasMay include a light emission control signal output terminal EMoutAnd a reference voltage signal output terminal vrefout. Emission control signal line EM and emission control signal output terminal EMoutAnd the electric connection is used for transmitting the light-emitting control signal. Reference voltage signal line vref and reference voltage signal output terminal vrefoutAn electrical connection for transmitting a reference voltage signal. The scanning signal lines S may further include a first scanning signal line S1 and a second scanning signal line S2, a scanning signal output terminal SoutMay include a first scan signal output terminal S1outAnd a second scan signal output terminal S2out. A first scanning signal line S1 and a first scanning signal output terminal S1outElectrically connected to the second scan signal line S2 and the second scan signal output terminal S2outAnd (6) electrically connecting.
In the embodiment shown in fig. 9, a plurality of sub-pixels PX in the first display area a1 may be electrically connected to the same light emission control signal line EM. And/or, a plurality of sub-pixels PX in the first display area a1 are electrically connected to the same reference voltage signal line vref.
Similarly, the plurality of sub-pixels PX in the first display area a1 are electrically connected to the same first scanning signal line S1. And/or, a plurality of sub-pixels PX in the first display area a1 are electrically connected to the same second scan signal line S2.
For example, the sub-pixels PX in the first display area a1 may include a red sub-pixel R, a green sub-pixel G, and a blue sub-pixel B. All the sub-pixels PX (including the red, green and blue sub-pixels R, G and B) in the first display area a1 may be electrically connected to the same emission control signal line EM, which may be connected to the emission control signal output terminal EM on the first driving block 02outAnd (6) electrically connecting. All the sub-pixels PX in the first display area a1 are electrically connected to the same reference voltage signal line vref, which may be connected to the reference voltage signal output terminal vref on the first driving module 02outAnd (6) electrically connecting. All the sub-pixels PX in the first display area a1 are electrically connected to the same first scan signal line S1, and the first scan signal line S1 can be connected to the first scan signal line on the first driving module 02Number output terminal S1outAnd (6) electrically connecting. All the sub-pixels PX in the first display area a1 are electrically connected to the same second scan signal line S2, and the second scan signal line S2 may be connected to the second scan signal output terminal S2 of the first driving module 02 outAnd (6) electrically connecting.
Therefore, on one hand, the number and the wiring length of the light-emitting control signal line EM, the reference voltage signal line vref, the first scanning signal line S1 and/or the second scanning signal line S2 in the display panel can be reduced, which is beneficial to saving the wiring space and saving the production cost; on the other hand, the emission control signal output terminal EM on the first driving block can be reducedoutReference voltage signal output terminal vrefoutA first scanning signal output terminal S1outAnd/or the second scan signal output terminal S2outThe number of the first driving modules is reduced, and the use cost of the first driving modules is reduced.
With continued reference to fig. 9, specifically, the sub-pixels PX in the first display area a1 may include the pixel circuits 80 and the light emitting elements 81. Taking the 7T1C pixel circuit as an example, the pixel circuit 80 may include a driving transistor M1, a data writing transistor M2, a first reset transistor M3, a threshold compensation transistor M4, a second reset transistor M5, a first light emission control transistor M6, a second light emission control transistor M7, and a storage capacitor Cst.
A first pole of the driving transistor M1 is electrically connected to the first power supply voltage signal line PVDD, and a second pole of the driving transistor M1 is electrically connected to the first pole of the light emitting element 81.
The gate of the first reset transistor M3 is electrically connected to the first scan signal line S1, the first pole of the first reset transistor M3 is electrically connected to the reference voltage signal line vref, and the second pole of the first reset transistor M3 is electrically connected to the gate of the driving transistor M1.
The gate of the data write transistor M2 is electrically connected to the second scanning signal line S2, the first pole of the data write transistor M2 is electrically connected to the data signal line data, and the second pole of the data write transistor M2 is electrically connected to the first pole of the drive transistor M1.
The gate of the threshold compensation transistor M4 is electrically connected to the second scan signal line S2, the first pole of the threshold compensation transistor M4 is electrically connected to the gate of the drive transistor M1, and the second pole of the threshold compensation transistor M4 is electrically connected to the first pole of the drive transistor M1.
The gate of the second reset transistor M5 is electrically connected to the first scan signal line S1, the first pole of the second reset transistor M5 is electrically connected to the reference voltage signal line vref, and the second pole of the second reset transistor M5 is electrically connected to the first pole of the light emitting element 81.
The gate of the first light emission controlling transistor M6 is electrically connected to the light emission control signal line EM, the first pole of the first light emission controlling transistor M6 is electrically connected to the first power supply voltage signal line PVDD, and the second pole of the first light emission controlling transistor M6 is electrically connected to the first pole of the driving transistor M1.
The gate of the second emission control transistor M7 is electrically connected to the emission control signal line EM, the first electrode of the second emission control transistor M7 is electrically connected to the second electrode of the driving transistor M1, and the second electrode of the second emission control transistor M7 is electrically connected to the first electrode of the light emitting element 81.
A first plate of the storage capacitor Cst is electrically connected to the gate electrode of the driving transistor M1, and a second plate of the storage capacitor Cst is electrically connected to the first power voltage signal line PVDD. The second pole of the light emitting element 81 is electrically connected to the second power voltage signal line PVEE.
In addition to the light emission control signal line EM, the reference voltage signal line vref, the first scan signal line S1, and the second scan signal line S2 mentioned above, all the sub-pixels PX (including the red sub-pixel R, the green sub-pixel G, and the blue sub-pixel B) in the first display region a1 may be electrically connected to the same first power voltage signal line PVDD, which may be connected to the first power voltage signal output terminal PVDD on the first driving module 02outAnd (6) electrically connecting. All the subpixels PX in the first display area a1 may be electrically connected to the same second power voltage signal line PVEE, and the same second power voltage signal line PVEE may be connected to the second power voltage signal output terminal PVEE of the first driving module 02 outAnd (6) electrically connecting. All the red subpixels R in the first display area a1 may be connected with the sub data signal line data1Electric connection, sub data messageNumber line data1Can be connected with a subdata signal output terminal data on the first driving module 02out1And (6) electrically connecting. All the green subpixels G in the first display area a1 may be connected with the sub data signal line data2Electrically connected, sub-data signal line data2Can be connected with a subdata signal output terminal data on the first driving module 02out2And (6) electrically connecting. All of the blue subpixels B in the first display area a1 may be connected with the sub data signal line data3Electrically connected, sub-data signal line data3Can be connected with a subdata signal output terminal data on the first driving module 02out3And (6) electrically connecting.
FIG. 10 is a timing diagram of a pixel circuit in the display module shown in FIG. 9. As shown in fig. 10, the first mode includes an initialization phase t1, a data writing phase t2, and a light emitting phase t 3. In the first mode, the first power supply voltage signal output terminal PVDDoutProviding a forward voltage signal, such as a +4.6V voltage signal; second power supply voltage signal output terminal PVEEoutProviding a negative voltage signal, such as a-2.7V voltage signal.
At the initialization stage t1, the first scan signal output terminal S1 outProviding a conduction level, a second scan signal output terminal S2outProviding a cut-off level, a light emission control signal output terminal EMoutA cutoff level is provided. The first reset transistor M3 is turned on in response to the on level transmitted by the first scan signal line S1, and the reference voltage signal of the reference voltage signal line vref is transmitted to the gate of the driving transistor M1 through the first reset transistor M3 to reset the gate of the driving transistor M1. The second reset transistor M5 is turned on in response to the on level transmitted by the first scan signal line S1, and the reference voltage signal of the reference voltage signal line vref is transmitted to the first pole of the light emitting element 81 through the second reset transistor M5 to reset the first pole of the light emitting element 81.
In the data writing phase t2, the first scan signal output terminal S1outProviding a cut-off level, second scan signal output terminal S2outProviding a conduction level, emission control signal output terminal EMoutA cutoff level is provided. Data writingThe transistor M2 and the threshold compensating transistor M4 are turned on in response to the turn-on level transmitted from the second scan signal line S2, and the sub data signal is outputted to the terminal dataout1～dataout3The data signal provided by at least one of the red, green and blue sub-pixels R, G and B in the first display area a1 is written into the first pole of the driving transistor M1 of at least one of the red, green and blue sub-pixels R, G and B, and the compensation of the threshold voltage of the driving transistor M1 is completed.
At the light emitting stage t3, the first scan signal output terminal S1outProviding a cut-off level, a second scan signal output terminal S2outProviding an off-level, emission control signal output terminal EMoutA turn-on level is provided. The first and second light emission control transistors M6 and M7 are turned on in response to the on level transmitted by the light emission control signal line EM, and the driving transistor M1 of at least one of the red, green, and blue sub-pixels R, G, and B in the first display area a1 is turned on in response to the on level maintained by the storage capacitor Cst, so that the light emitting element 81 in at least one of the red, green, and blue sub-pixels R, G, and B in the first display area a1 emits light.
Fig. 11 is a schematic top view of a display module according to an embodiment of the disclosure. As shown in fig. 11, according to some embodiments of the present application, the display panel 01 may optionally include a functional region 110, and the sub-pixels PX may not be disposed in the functional region 110. That is, the functional region 110 may be provided in the display panel 01 to be a space, and the functional region 110 may be provided with a headphone or the like, so that the functional region 110 shown in fig. 11 may be referred to as a "notch region". At least three sides of the function region 110 may be surrounded by the second display region a2, and the first display region a1 may be disposed around at least three sides of the function region 110, such as around "left", "right", and "lower" sides of the function region 110.
In this way, since the first display area a1 is disposed around the "notch area", that is, the first display area a1 is located at the edge of the second display area a2, the sub-pixels in the second display area a2 can be more concentrated and not divided by the first display area a1, thereby ensuring the display effect of the second display area a 2.
Fig. 12 is another schematic top view of a display module according to an embodiment of the disclosure. As shown in fig. 12, unlike the embodiment shown in fig. 11, according to other embodiments of the present application, the sub-pixels PX may be optionally disposed in the functional region 110, and the light transmittance of the functional region 110 is greater than that of the second display region a2, that is, the pixel density of the functional region 110 is less than that of the second display region a 2. In this way, the functional area 110 can be provided with elements such as an off-screen camera to realize a full screen, and thus the functional area 110 can be referred to as a "sub-screen area". The function region 110 may be surrounded by the second display region a2, and the first display region a1 may be disposed around at least three sides of the function region 110.
In this way, since the first display area a1 is disposed around the "sub-screen area", that is, the first display area a1 is located at the edge of the second display area a2, the sub-pixels in the second display area a2 can be more concentrated and not divided by the first display area a1, thereby ensuring the display effect of the second display area a 2.
Fig. 13 is a schematic top view of a display module according to an embodiment of the disclosure. As shown in fig. 13, according to further embodiments of the present application, the second display area a2 may optionally include a plurality of edges and a corner g at the intersection of any two adjacent edges. The first display area a1 may be located at a side of at least one corner g away from the center O of the second display area a2 in a direction parallel to the plane of the display panel.
In this way, since the first display area a1 and the first display area a1 are located at the edge corner g of the second display area a2, the sub-pixels in the second display area a2 can be more concentrated and not divided by the first display area a1, thereby ensuring the display effect of the second display area a 2.
It should be noted that the first display area a1 may also be disposed at other positions, such as at the edge of the second display area a2 or in the second display area a2, which is not limited in this embodiment of the application.
According to some embodiments of the application, optionally, the second display area a2 may display pictures when in the second mode. The second mode may be understood as a normal display mode in which the second display area a2 can normally display pictures, i.e., when exiting the first mode. Wherein the refresh frequency of the first display region a1 in the first mode is less than the refresh frequency of the second display region a2 in the second mode. Illustratively, for example, the second display region a2 switches the screen at a refresh frequency of 60Hz or 120Hz when in the second mode, and the refresh frequency of the first display region a1 when in the first mode may be less than 60 Hz. In some specific examples, the refresh frequency of the first display area a1 in the first mode may be equal to 1Hz, for example.
In this way, since the first display area a1 switches the frames with a lower refresh frequency in the first mode, the power consumption of the display module can be further reduced.
According to some embodiments of the present application, optionally, in the second mode, the second display area a2 displays pictures, and the first driving module 02 does not output voltage signals to the sub-pixels in the first display area a 1. That is, when the second display area a2 displays a screen, the first display area a1 may not be displayed, and the respective signal lines in the first display area a1 may be in a high impedance state.
Therefore, when the second display area a2 displays a picture, the first display area a1 is not in a black state, so that the display effect of the second display area a2 can be prevented from being affected by the fact that the first display area a1 displays a pure-color picture, i.e., the display module is ensured to have a better display effect.
Fig. 14 is a schematic top view of a display module according to an embodiment of the disclosure. As shown in fig. 14, according to still other embodiments of the present application, optionally, the display module 30 may further include a second driving module 03, the second driving module 03 may be electrically connected to the sub-pixels in the second display area a2, and the second driving module 03 is configured to provide voltage signals to the sub-pixels in the second display area a2 in the second mode, so as to drive the sub-pixels in the second display area a2 to emit light. The first driving module 02 and the second driving module 03 can be integrated inside the driving chip 04 of the display module 30. That is, the first driving module 02 and the second driving module 03 may be part of an internal circuit in the driving chip 04 of the display module 30.
In this way, in the first mode, only a part of the driving circuit (i.e., the first driving module 02) of the driving chip 04 is operated, and the other part of the driving circuit (i.e., the second driving module 03) is not operated, so that the power consumption of the driving chip 04 can be reduced as a whole.
Based on the display module 30 provided in the above embodiment, correspondingly, the embodiment of the present application further provides a specific implementation manner of the driving method of the display module.
It should be noted that the display module applied in the driving method of the display module provided in the embodiment of the present application has the same structure as the display module 30 provided in the foregoing embodiment. That is to say, the display module applied by the driving method of the display module provided in the embodiment of the present application may be the display module 30 provided in the foregoing embodiment.
As shown in fig. 3, the display module 30 applied in the driving method of the display module provided in the embodiment of the present application includes a display panel 01 and a first driving module 02, where the display panel 01 includes a first display area a1 and a second display area a 2. Both the first display region a1 and the second display region a2 may be provided with sub-pixels, and the area of the second display region a2 may be greater than that of the first display region a 1. The first driving module 02 is electrically connected to the plurality of sub-pixels PX in the first display area a 1. In the first mode, the second display area a2 is in a screen saver state.
As shown in fig. 15, the driving method of the display module provided in the embodiment of the present application may be applied to the first driving module 02, and the method may include the following steps:
s101, in the first mode, providing voltage signals to at least part of sub-pixels in the first display area to enable the at least part of sub-pixels in the first display area to emit light.
The first mode may also be called an Always On Display (AOD) mode, that is, when the Display panel is in the first mode, only the first Display area a1 is displayed in the Display panel 01, and the second Display area a2 is not displayed.
According to the driving method of the display module, the display module comprises a display panel and a first driving module, the display panel comprises a first display area and a second display area, and the first driving module is electrically connected with a plurality of sub-pixels in the first display area; in the first mode, the second display area is in a screen-off state, and the first driving module provides voltage signals for at least part of sub-pixels in the first display area so that at least part of sub-pixels in the first display area emit light. On one hand, the first display area in the display panel serves as a breathing lamp, so that an LED lamp does not need to be additionally arranged on the display panel, and the problem that the whole screen does not have the breathing lamp can be solved; on the other hand, in the first mode, since only at least part of the sub-pixels in the first display region emit light and the second display region does not emit light, power consumption of the display panel can be reduced; in a further aspect, in the first mode, the first driving module only supplies the voltage signal to at least some of the sub-pixels in the first display region without supplying the voltage signal to the sub-pixels in the second display region, so that the power consumption of the driving module (including the first driving module) can be reduced as a whole.
As shown in fig. 8, according to some embodiments of the present application, optionally, the display panel 01 may include a scan signal line S and a data signal line data, and the first driving module 02 may include a scan signal output terminal SoutAnd a data signal output terminal dataout. The scanning signal lines S are respectively connected with the scanning signal output terminals SoutThe sub-pixels PX in the first display area a1 are electrically connected for transmitting a scan signal to the sub-pixels PX in the first display area a 1. Data signal lines data respectively connected with the data signal output terminals dataoutThe subpixels PX in the first display area a1 are electrically connected for transmitting data signals to the subpixels PX in the first display area a 1.
The data signal line data may include N sub data signal lines data1～dataNData signal output terminal dataoutMay include N sub-data signal output terminals dataout1～dataoutNN sub data signal lines data1～dataNAnd N sub-data signal output terminals dataout1～dataoutNThe N is more than 1 and is an integer. The first display area A1 may include N color sub-pixels, N color sub-pixels and N sub-data signal lines data1～dataNIn one-to-one correspondence, the sub-pixels of the same color in the first display area a1 are electrically connected to the same sub-data signal line, the sub-pixels of different colors in the first display area a1 are electrically connected to different sub-data signal lines,
For example, the sub-pixels PX in the first display area a1 may include a red sub-pixel R, a green sub-pixel G, and a blue sub-pixel B. All of the red sub-pixels R in the first display area A1 may be connected with the sub-data signal lines data1Electrically connected, all the green sub-pixels G in the first display area A1 may be connected with the sub data signal line data2Electrically connected, all of the blue subpixels B in the first display area a1 may be connected with the sub data signal lines data3And (6) electrically connecting.
Correspondingly, S101 may specifically include the following steps:
in the first mode, the scanning signal output terminal provides scanning signals to the sub-pixels in the first display area through the scanning signal lines, and at least one sub-data signal output terminal provides data signals to the sub-pixels of at least one color in the first display area through the corresponding sub-data signal lines, so that the sub-pixels of at least one color in the first display area emit light.
FIG. 16 is a timing diagram of the pixel circuit in the display module shown in FIG. 8. As shown in fig. 16, optionally in the first mode, according to some embodiments of the present application, the first power supply voltage signal output terminal PVDDoutProviding a forward voltage signal, such as a +4.6V voltage signal; second power supply voltage signal output terminal PVEE outProviding a negative voltage signal, such as a-2.7V voltage signal. Scanning signal output terminal SoutProviding a conduction level (e.g., a low level), sub data signal output terminal dataout1～dataout3At least one of which provides a turn-on level (e.g., a low level). The data write transistor M2 outputs the terminal S in response to the scan signaloutProvided with a conduction level to be conducted, and a sub data signal output terminal dataout1～dataout3The on level is supplied to the gate of the driving transistor M1 through the data writing transistor M2, and the driving transistor M1 is turned on. First power supply voltage signal output terminal PVDDoutThe supplied forward voltage signal is transmitted to the light emitting element 81 through the first power voltage signal line PVDD and the driving transistor M1, so that the red, green, and blue sub-pixels R, G, and B in the first display area a1 are all light-emitting, for example, the first display area a1 displays a white screen.
FIG. 17 is another timing diagram of the pixel circuit in the display module shown in FIG. 8. As shown in fig. 17, unlike the embodiment shown in fig. 16, according to other embodiments of the present application, optionally, the sub data signal output terminal dataout1Providing a conduction level, a sub data signal output terminal dataout2～dataout3The first display region a1 displays a red picture by providing a cut-off level.
FIG. 18 is a timing diagram of another pixel circuit in the display module shown in FIG. 8. As shown in fig. 18, unlike the embodiment shown in fig. 16, according to other embodiments of the present application, optionally, the sub data signal output terminal dataout2Providing a conduction level, a sub data signal output terminal dataout1 and dataout3The cutoff level is provided and the first display region a1 displays a green picture.
FIG. 19 is a timing diagram of a pixel circuit in the display module shown in FIG. 8. As shown in fig. 19, unlike the embodiment shown in fig. 16, according to other embodiments of the present application, optionally, the sub data signal output terminal dataout3Providing a conduction level, a sub data signal output terminal dataout1 and dataout2The first display region a1 displays a blue picture by providing a cut-off level.
It should be noted that, in other embodiments of the present application, the sub data signal output terminal data is adjustedout2～dataout3The size of the output data signal and the combination of the data signals output by any two sub data signal output terminals, the first display area a1 can also display other color pictures such as yellow, cyan or purple.
Based on the display module assembly 30 that above-mentioned embodiment provided, correspondingly, this application still provides a display device, includes the display module assembly 30 that this application provided. Referring to fig. 20, fig. 20 is a schematic structural diagram of a display device according to an embodiment of the present disclosure. Fig. 20 provides a display device 1000 including the display module 30 according to any of the embodiments of the present disclosure. The display device 1000 is described in the embodiment of fig. 20, for example, taking a mobile phone as an example, it is understood that the display device provided in the embodiment of the present application may be other display devices having a display function, such as a wearable product, a computer, a television, and a vehicle-mounted display device, and the present application is not limited thereto. The display device provided in the embodiment of the present application has the beneficial effects of the display module 30 provided in the embodiment of the present application, and specific reference may be made to the specific description of the display module 30 in the foregoing embodiments, which is not repeated herein.
In some specific embodiments, the display device 1000 optionally includes, but is not limited to, an OLED display device.
It should be understood that the specific structures of the pixel circuit and the layout structure of the display panel provided in the drawings of the embodiments of the present application are only some examples, and are not intended to limit the present application. In addition, the above embodiments provided by the present application may be combined with each other without contradiction.
In accordance with the embodiments of the present application as described above, these embodiments are not exhaustive of all of the details and are not intended to limit the application to the specific embodiments described. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the application and its practical application, to thereby enable others skilled in the art to best utilize the application and its various modifications as are suited to the particular use contemplated. The application is limited only by the claims and their full scope and equivalents.

Claims (16)

1. A display module is characterized by comprising a display panel and a first driving module, wherein the display panel comprises a first display area and a second display area, and the first driving module is electrically connected with a plurality of sub-pixels in the first display area;
In a first mode, the second display area is in a screen-off state, and the first driving module provides voltage signals to at least part of the sub-pixels in the first display area so as to enable at least part of the sub-pixels in the first display area to emit light.
2. The display module of claim 1, wherein the display panel comprises a scan signal line and a data signal line, and the first driving module comprises a scan signal output terminal and a data signal output terminal;
the scanning signal line is electrically connected with the scanning signal output terminal and the sub-pixels in the first display area, and the data signal line is electrically connected with the data signal output terminal and the sub-pixels in the first display area;
in the first mode, the scan signal output terminal supplies a scan signal to the sub-pixels in the first display region through the scan signal line, and the data signal output terminal supplies a data signal to the sub-pixels in the first display region through the data signal line, so that at least part of the sub-pixels in the first display region emit light.
3. The display module of claim 2, wherein the plurality of sub-pixels in the first display region are electrically connected to a same one of the scan signal lines; or,
The scanning signal line comprises M sub-scanning signal lines, the scanning signal output terminal comprises M sub-scanning signal output terminals, the first display area comprises sub-pixels of M colors, the M sub-scanning signal lines are electrically connected with the M sub-scanning signal output terminals in a one-to-one correspondence mode, the sub-pixels of the M colors are electrically connected with the M sub-scanning signal lines in a one-to-one correspondence mode, the sub-pixels of the same color in the first display area are electrically connected with the same sub-scanning signal line, the sub-pixels of different colors in the first display area are electrically connected with the different sub-scanning signal lines, and M is larger than 1 and is an integer.
4. The display module of claim 2, wherein the data signal lines comprise N sub-data signal lines, the data signal output terminals comprise N sub-data signal output terminals, the first display area comprises N color sub-pixels, the N sub-data signal lines are electrically connected with the N sub-data signal output terminals in a one-to-one correspondence, the N color sub-pixels are electrically connected with the N sub-data signal lines in a one-to-one correspondence, the same color sub-pixel in the first display area is electrically connected with the same sub-data signal line, sub-pixels of different colors in the first display area are electrically connected with different sub-data signal lines, N is greater than 1 and is an integer; or,
The plurality of sub-pixels in the first display area are electrically connected with the same data signal line.
5. The display module of claim 2, wherein the display panel further comprises a first power voltage signal line and a second power voltage signal line, the first driving module further comprises a first power voltage signal output terminal and a second power voltage signal output terminal, the first power voltage signal line is electrically connected to the first power voltage signal output terminal, and the second power voltage signal line is electrically connected to the second power voltage signal output terminal;
a plurality of sub-pixels in the first display area are electrically connected with the same first power supply voltage signal line; and/or the presence of a gas in the atmosphere,
the plurality of sub-pixels in the first display area are electrically connected with the same second power supply voltage signal line.
6. The display module according to claim 2, wherein the display panel further comprises a first power voltage signal line and a second power voltage signal line, the sub-pixel comprises a pixel circuit and a light emitting element, and the pixel circuit comprises:
a driving transistor, a first pole of which is electrically connected to the first power supply voltage signal line, and a second pole of which is electrically connected to the first pole of the light emitting element;
A data writing transistor, a gate of which is electrically connected to the scanning signal line, a first pole of which is electrically connected to the data signal line, and a second pole of which is electrically connected to the gate of the driving transistor;
wherein the second pole of the light emitting element is electrically connected to the second power voltage signal line.
7. The display module of claim 2, wherein the display panel further comprises a light emission control signal line and a reference voltage signal line, the first driving module further comprises a light emission control signal output terminal and a reference voltage signal output terminal, the light emission control signal line is electrically connected to the light emission control signal output terminal, and the reference voltage signal line is electrically connected to the reference voltage signal output terminal;
the scanning signal lines further comprise a first scanning signal line and a second scanning signal line, the scanning signal output terminals comprise a first scanning signal output terminal and a second scanning signal output terminal, the first scanning signal line is electrically connected with the first scanning signal output terminal, and the second scanning signal line is electrically connected with the second scanning signal output terminal;
The plurality of sub-pixels in the first display area are electrically connected with the same light-emitting control signal line; and/or the presence of a gas in the atmosphere,
a plurality of sub-pixels in the first display area are electrically connected with the same reference voltage signal line; and/or the presence of a gas in the atmosphere,
the plurality of sub-pixels in the first display area are electrically connected with the same first scanning signal line and/or the same second scanning signal line.
8. The display module according to claim 7, wherein the display panel further comprises a first power voltage signal line and a second power voltage signal line, the sub-pixel comprises a pixel circuit and a light emitting element, and the pixel circuit comprises:
a driving transistor having a first electrode electrically connected to the first power supply voltage signal line and a second electrode electrically connected to the first electrode of the light emitting element;
a first reset transistor, a gate of which is electrically connected to the first scan signal line, a first pole of which is electrically connected to the reference voltage signal line, and a second pole of which is electrically connected to the gate of the driving transistor;
a data writing transistor, a gate of which is electrically connected to the second scanning signal line, a first pole of which is electrically connected to the data signal line, and a second pole of which is electrically connected to the first pole of the driving transistor;
A threshold compensation transistor, a gate of which is electrically connected to the second scanning signal line, a first pole of which is electrically connected to the gate of the driving transistor, and a second pole of which is electrically connected to the first pole of the driving transistor;
a second reset transistor, a gate of which is electrically connected to the first scanning signal line, a first pole of which is electrically connected to the reference voltage signal line, and a second pole of which is electrically connected to the first pole of the light emitting element;
a first light emission control transistor, a gate of which is electrically connected to the light emission control signal line, a first pole of which is electrically connected to the first power supply voltage signal line, and a second pole of which is electrically connected to the first pole of the driving transistor;
a second emission control transistor, a gate of which is electrically connected to the emission control signal line, a first pole of which is electrically connected to the second pole of the driving transistor, and a second pole of which is electrically connected to the first pole of the light emitting element;
Wherein the second pole of the light emitting element is electrically connected to the second power voltage signal line.
9. The display module according to claim 1, wherein the display panel comprises a functional region, the functional region has no sub-pixels or has a light transmittance greater than that of the second display region, and at least three sides of the functional region are surrounded by the second display region;
the first display area is disposed around at least three sides of the functional area.
10. The display module of claim 1, wherein the second display area comprises a plurality of edges and a corner located at a junction of any two adjacent edges;
in a direction parallel to the plane of the display panel, the first display area is located on a side of at least one corner away from the center of the second display area.
11. The display module according to claim 1, wherein in the second mode, the second display area displays a picture, and the refresh frequency of the first display area in the first mode is less than the refresh frequency of the second display area in the second mode.
12. The display module of claim 1, wherein in the second mode, the second display area displays a picture, and the first driving module does not output a voltage signal to the sub-pixels in the first display area.
13. The display module according to claim 1, further comprising a second driving module electrically connected to the sub-pixels in the second display region, wherein the second driving module is configured to provide voltage signals to the sub-pixels in the second display region in a second mode;
the first driving module and the second driving module are integrated inside a driving chip of the display module.
14. The driving method of the display module is characterized in that the display module comprises a display panel and a first driving module, the display panel comprises a first display area and a second display area, the first driving module is electrically connected with a plurality of sub-pixels in the first display area, and the second display area is in a screen refreshing state in a first mode;
the driving method is applied to the first driving module, and comprises the following steps:
in the first mode, voltage signals are provided for at least part of the sub-pixels in the first display area, so that at least part of the sub-pixels in the first display area emit light.
15. The driving method according to claim 14, wherein the display panel includes scan signal lines and data signal lines, and the first driving module includes scan signal output terminals and data signal output terminals;
The scanning signal line is electrically connected with the scanning signal output terminal and the sub-pixels in the first display area, and the data signal line is electrically connected with the data signal output terminal and the sub-pixels in the first display area;
the data signal lines comprise N sub-data signal lines, the data signal output terminals comprise N sub-data signal output terminals, the first display area comprises N sub-pixels with N colors, the N sub-data signal lines are electrically connected with the N sub-data signal output terminals in a one-to-one correspondence manner, the N sub-pixels with the N colors are in one-to-one correspondence with the N sub-data signal lines, the sub-pixels with the same color in the first display area are electrically connected with the same sub-data signal line, the sub-pixels with different colors in the first display area are electrically connected with different sub-data signal lines, and N is larger than 1 and is an integer;
when in the first mode, providing a voltage signal to at least part of the subpixels in the first display area specifically includes:
in the first mode, the scan signal output terminals provide scan signals to the sub-pixels in the first display area through the scan signal lines, and at least one of the sub-data signal output terminals provides data signals to the sub-pixels of at least one color in the first display area through the corresponding sub-data signal lines, so that the sub-pixels of at least one color in the first display area emit light.
16. A display device comprising the display module according to any one of claims 1 to 13.
CN202210444658.6A 2022-04-26 2022-04-26 Display module, driving method thereof and display device Active CN114758620B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210444658.6A CN114758620B (en) 2022-04-26 2022-04-26 Display module, driving method thereof and display device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210444658.6A CN114758620B (en) 2022-04-26 2022-04-26 Display module, driving method thereof and display device

Publications (2)

Publication Number Publication Date
CN114758620A true CN114758620A (en) 2022-07-15
CN114758620B CN114758620B (en) 2023-06-30

Family

ID=82333839

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210444658.6A Active CN114758620B (en) 2022-04-26 2022-04-26 Display module, driving method thereof and display device

Country Status (1)

Country Link
CN (1) CN114758620B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115424567A (en) * 2022-08-22 2022-12-02 厦门天马显示科技有限公司 Display module and display device

Citations (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6184853B1 (en) * 1997-02-13 2001-02-06 Alps Electric Co., Ltd. Method of driving display device
JP2006215423A (en) * 2005-02-07 2006-08-17 Seiko Epson Corp Electrooptical device and electronic apparatus
JP2006343681A (en) * 2005-06-10 2006-12-21 Fuji Xerox Co Ltd Driving device of image display medium and data generating program for driving
JP2011254329A (en) * 2010-06-02 2011-12-15 Ricoh Co Ltd Image reading apparatus
US20130162619A1 (en) * 2011-12-27 2013-06-27 Samsung Mobile Display Co., Ltd. Display apparatus and method of repairing the same
US20150243211A1 (en) * 2014-02-25 2015-08-27 Samsung Display Co., Ltd. Display device and driving method thereof
US20190088193A1 (en) * 2017-09-21 2019-03-21 Canon Kabushiki Kaisha Display apparatus and control method therefor
CN110164357A (en) * 2018-12-11 2019-08-23 友达光电股份有限公司 Display device and its driving method
CN110853586A (en) * 2019-12-05 2020-02-28 厦门天马微电子有限公司 Backlight module and display device
CN110853595A (en) * 2019-12-04 2020-02-28 厦门天马微电子有限公司 Display panel and display device
CN111028757A (en) * 2019-12-25 2020-04-17 武汉天马微电子有限公司 Display device and driving method thereof
CN111163508A (en) * 2019-12-25 2020-05-15 惠州Tcl移动通信有限公司 Message notification method and device and mobile terminal
CN111798806A (en) * 2020-06-30 2020-10-20 上海中航光电子有限公司 Scanning driving circuit, display panel, driving method of display panel and display device
CN111899683A (en) * 2020-09-22 2020-11-06 上海天马有机发光显示技术有限公司 Display panel and display device
CN113611246A (en) * 2021-06-29 2021-11-05 镎创显示科技股份有限公司 Micro light-emitting diode display device
CN114283733A (en) * 2022-01-27 2022-04-05 京东方科技集团股份有限公司 Control method and control device of display equipment, driving chip and display equipment

Patent Citations (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6184853B1 (en) * 1997-02-13 2001-02-06 Alps Electric Co., Ltd. Method of driving display device
JP2006215423A (en) * 2005-02-07 2006-08-17 Seiko Epson Corp Electrooptical device and electronic apparatus
JP2006343681A (en) * 2005-06-10 2006-12-21 Fuji Xerox Co Ltd Driving device of image display medium and data generating program for driving
JP2011254329A (en) * 2010-06-02 2011-12-15 Ricoh Co Ltd Image reading apparatus
US20130162619A1 (en) * 2011-12-27 2013-06-27 Samsung Mobile Display Co., Ltd. Display apparatus and method of repairing the same
US20150243211A1 (en) * 2014-02-25 2015-08-27 Samsung Display Co., Ltd. Display device and driving method thereof
US20190088193A1 (en) * 2017-09-21 2019-03-21 Canon Kabushiki Kaisha Display apparatus and control method therefor
US20200184897A1 (en) * 2018-12-11 2020-06-11 Au Optronics Corporation Display device and driving method thereof
CN110164357A (en) * 2018-12-11 2019-08-23 友达光电股份有限公司 Display device and its driving method
CN110853595A (en) * 2019-12-04 2020-02-28 厦门天马微电子有限公司 Display panel and display device
CN110853586A (en) * 2019-12-05 2020-02-28 厦门天马微电子有限公司 Backlight module and display device
CN111028757A (en) * 2019-12-25 2020-04-17 武汉天马微电子有限公司 Display device and driving method thereof
CN111163508A (en) * 2019-12-25 2020-05-15 惠州Tcl移动通信有限公司 Message notification method and device and mobile terminal
CN111798806A (en) * 2020-06-30 2020-10-20 上海中航光电子有限公司 Scanning driving circuit, display panel, driving method of display panel and display device
CN111899683A (en) * 2020-09-22 2020-11-06 上海天马有机发光显示技术有限公司 Display panel and display device
CN113611246A (en) * 2021-06-29 2021-11-05 镎创显示科技股份有限公司 Micro light-emitting diode display device
CN114283733A (en) * 2022-01-27 2022-04-05 京东方科技集团股份有限公司 Control method and control device of display equipment, driving chip and display equipment

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115424567A (en) * 2022-08-22 2022-12-02 厦门天马显示科技有限公司 Display module and display device

Also Published As

Publication number Publication date
CN114758620B (en) 2023-06-30

Similar Documents

Publication Publication Date Title
CN108417149B (en) Display panel, driving method thereof and display device
CN102110410B (en) Display device and electronic device
US6909442B2 (en) Display device for decompressing compressed image data received
CN112102785A (en) Pixel circuit, display panel, driving method of display panel and display device
CN109346009B (en) Organic light emitting display panel and display device
US11532281B2 (en) Electronic device capable of reducing peripheral circuit area
CN112687237B (en) Display panel, display control method thereof and display device
CN108538245B (en) Display panel driving method, display panel and display device
US9286833B2 (en) Buffer circuit, scanning circuit, display device, and electronic equipment
US10783843B2 (en) Display panel, display apparatus and driving method thereof
CN109697952B (en) Display panel, control method thereof and display device
CN109147661B (en) Display panel and display device
CN112133250B (en) Organic light emitting display device and driving method thereof
CN110828529B (en) Display device and display panel thereof
US20240078972A1 (en) Display panel, method for driving display panel, driving circuit and display device
CN111768740A (en) Display panel, driving method thereof and display device
CN113540200A (en) Display panel and display device
CN111091772A (en) Display panel and display device
CN114758620B (en) Display module, driving method thereof and display device
US11551610B2 (en) Display and driving method
CN114203092B (en) Display panel and driving method thereof
CN215868587U (en) Display panel and display device
US11328654B2 (en) Multi-grayscale pixel driving circuit and display panel
JP4633033B2 (en) Liquid crystal display device and portable information device
CN116456776B (en) Array substrate, display panel and display device

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant