CN114530122A - Display device, method for driving the same, and storage medium - Google Patents
Display device, method for driving the same, and storage medium Download PDFInfo
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- CN114530122A CN114530122A CN202210140957.0A CN202210140957A CN114530122A CN 114530122 A CN114530122 A CN 114530122A CN 202210140957 A CN202210140957 A CN 202210140957A CN 114530122 A CN114530122 A CN 114530122A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
- G09G3/3225—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
- G09G3/3611—Control of matrices with row and column drivers
- G09G3/3648—Control of matrices with row and column drivers using an active matrix
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- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The invention discloses a display device, a method for driving the same, and a storage medium. The device comprises: a plurality of pixels, each of the pixels being connected to a scan line; a plurality of output data lines, each of the output data lines being connected to each of the pixels; and a plurality of demultiplexers, each of which is configured to transmit a data signal supplied to a data input line to at least two output data lines among the plurality of output data lines, wherein each of the demultiplexers includes a plurality of switching tubes, at least one of the at least two output data lines transmitting the data signal to the pixel via control of the two switching tubes, and at least one of the at least two output data lines transmitting the data signal directly to the pixel. The invention reduces the switch tube on the output data line, thereby reducing the control signal of the control switch and reducing the space of the circuit board layout.
Description
Technical Field
The present invention relates to the field of display panel technologies, and in particular, to a display device, a method for driving the display device, and a storage medium.
Background
With the development of information technology, the importance of display devices as a connection medium between users and information has been increasingly highlighted. Therefore, the use of display devices such as liquid crystal display devices and organic light emitting display devices is increasing.
The display device may include a data driver for supplying a data signal to the data lines, a scan driver for supplying a scan signal to the scan lines, and a plurality of pixels connected to the scan lines and the data lines.
On the other hand, in the related art, in order to reduce the manufacturing cost, a structure in which a demultiplexer is added to the output line of the data driver may be employed. That is, the demultiplexer receives a data signal through an output line of the data driver, and may also time-divisionally output the data signal to a greater number of data lines than the output line of the data driver. However, this design has the disadvantage of requiring more clock signals, which increases the space for the circuit board layout.
Disclosure of Invention
The present invention provides a display device, a method for driving the display device, and a storage medium, which can solve the problem that the space of a circuit board layout is increased due to the fact that a demultiplexer needs more clock signals at present.
According to an aspect of the present invention, there is provided a display device, the device including: a plurality of pixels, each of the pixels being connected to a scan line; a plurality of output data lines, each of the output data lines being connected to each of the pixels; and a plurality of demultiplexers, each of which is configured to transmit a data signal supplied to a data input line to at least two output data lines among the plurality of output data lines, wherein each of the demultiplexers includes a plurality of switching tubes, at least one of the at least two output data lines transmitting the data signal to the pixel via control of the two switching tubes, and at least one of the at least two output data lines transmitting the data signal directly to the pixel.
Furthermore, the two switching tubes controlling the same output data line are respectively controlled by a group of control signals.
Further, the set of control signals includes a first control signal and a second control signal, wherein the working times of the first control signal and the second control signal do not overlap each other in a time domain.
Further, at least one of the at least two output data lines transmits a data signal to the red pixel via control of two switching tubes.
Further, at least one of the at least two output data lines directly transmits a data signal to the blue pixel.
Further, the demultiplexer transmits the data signal supplied to the data input line to three output data lines or six output data lines among the plurality of output data lines.
Further, the apparatus further comprises: a data driver generating a data signal of the data input line.
Further, two output data lines controlling different are respectively controlled by two groups of control signals.
According to another aspect of the present invention, there is provided a method for driving the display device, the method including: turning on one of the two switching tubes for a first period and supplying the data signal to a data output line connected to the pixel; and turning on the other of the two switching tubes in a second period and supplying the data signal to a data output line connected to the pixel.
According to another aspect of the present invention, there is provided a storage medium having stored therein a computer program which, when run on a computer, causes the computer to execute a method for driving the display apparatus.
The invention has the advantages that the switching tubes on the output data lines are reduced, so that the control signals of the control switch are reduced, and the space for layout of the circuit board is reduced.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a display device according to an embodiment of the present invention;
fig. 2 is a flowchart illustrating steps of a method for driving the display device according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a storage medium provided by an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a terminal device according to an embodiment of the present invention;
fig. 5 is a timing diagram of CK1 and CK3 provided by an embodiment of the present invention.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Fig. 1 is a schematic structural diagram of a display device according to an embodiment of the present invention. The device comprises: a plurality of pixels 12, a plurality of output data lines 11, and a plurality of demultiplexers 10.
Illustratively, each of the pixels 12 is connected to a plurality of output data lines 11 of the scan line, and each of the output data lines 11 is connected to each of the pixels 12. Each of the demultiplexers 10 is configured to transmit a data signal supplied to a data input line to at least two output data lines 11 of the plurality of output data lines 11, wherein each of the demultiplexers 10 includes a plurality of switching tubes 13, at least one output data line 11 of the at least two output data lines 11 transmits the data signal to the pixel 12 via control of two switching tubes 13, and at least one output data line 11 of the at least two output data lines 11 directly transmits the data signal to the pixel 12.
Illustratively, the two switching tubes 13 controlling the same output data line 11 are respectively controlled by a set of control signals. The two output data lines 11 controlling different are controlled by two sets of control signals, respectively. That is, different output data lines 11 are subjected to different control signals therebetween. Each output data line 11 needs to be controlled by at least one switching tube 13 within the display device.
Referring to fig. 5 in the present embodiment, in order to improve the stability of the circuit, two switching tubes 13 (e.g., T1-1 and T1-2, T2-1 and T2-2 in fig. 1) are provided for each output data line 11. The set of control signals includes a first control signal CK1 (or CK2) and a second control signal C,3 (or CK4), wherein the working times of the first control signal and the second control signal do not overlap each other in a time domain.
Illustratively, at least one output data line 11 of the at least two output data lines 11 transmits a data signal to the red pixel 12 via the control of two switching tubes 13. At least one output data line 11 of the at least two output data lines 11 directly transmits a data signal to the blue pixel 12. Since the charging time of the blue pixel 12 is short, it is preferable that the switching tube 13 is not provided on the output data line 11 connected to the blue pixel 12, and two switching tubes 13 are provided on the red pixel 12 and the green pixel 12.
Illustratively, the demultiplexer 10 transmits data signals supplied to data input lines to three output data lines 11 or six output data lines 11 among the plurality of output data lines 11.
In another embodiment, the display device further includes: a data driver 20, the data driver 20 generating a data signal of the data input line.
The invention reduces the switch tube 13 on the output data line 11, thereby reducing the control signal of the control switch and reducing the space of the circuit board layout.
As shown in fig. 2, the present invention provides a method for driving the display device, the method comprising:
step S210: one of the two switching tubes 13 is turned on for a first period and the data signal is supplied to the data output line connected to the pixel 12.
Step S220: the other one of the two switching tubes 13 is turned on for a second period and the data signal is supplied to the data output line connected to the pixel 12.
Wherein the first time interval is the working time of one switch tube 13 of the two switch tubes 13, and the second time interval is the working time of the other switch tube 13 of the two switch tubes 13. So that the two switching tubes 13 operate alternately to control the output data lines 11 alternately.
In addition, the embodiment of the invention also provides a storage medium, wherein the storage medium is arranged in the terminal equipment, and the terminal equipment can be equipment such as a smart phone and a tablet personal computer. Specifically, as shown in fig. 3, the terminal device 200 includes a processor 201 and a memory 202. The processor 201 is electrically connected to the memory 202.
The processor 201 is a control center of the terminal device 200, connects various parts of the entire terminal device by using various interfaces and lines, and performs various functions of the terminal device and processes data by running or loading an application program stored in the memory 202 and calling data stored in the memory 202, thereby performing overall monitoring of the terminal device.
In this embodiment, the terminal device 200 is provided with a plurality of memory partitions, the plurality of memory partitions includes a system partition and a target partition, the processor 201 in the terminal device 200 loads instructions corresponding to processes of one or more application programs into the memory 202 according to the following steps, and the processor 201 runs the application programs stored in the memory 202, so as to implement various functions:
turning on one of the two switching tubes for a first period and supplying the data signal to a data output line connected to the pixel; and
turning on the other of the two switching tubes in a second period and supplying the data signal to a data output line connected to the pixel.
Fig. 4 shows a specific structure block diagram of a terminal device provided in an embodiment of the present application, where the terminal device may be used to implement the method for driving the display apparatus provided in the above embodiment. The terminal device 300 may be a smart phone or a tablet computer. In addition, the terminal device may further include a RF circuit 310 for receiving and transmitting electromagnetic waves, so as to perform interconversion between the electromagnetic waves and electrical signals, thereby communicating with a communication network or other devices. RF circuitry 310 may include various existing circuit elements for performing these functions, such as an antenna, a radio frequency transceiver, a digital signal processor, an encryption/decryption chip, a Subscriber Identity Module (SIM) card, memory, and so forth. RF circuit 310 may communicate with various networks such as the internet, an intranet, a wireless network, or with other devices over a wireless network. The wireless network may comprise a cellular telephone network, a wireless local area network, or a metropolitan area network. The Wireless network described above may use various Communication standards, protocols, and technologies, including, but not limited to, Global System for Mobile Communication (GSM), Enhanced Mobile Communication (Enhanced Data GSM Environment, EDGE), Wideband Code Division Multiple Access (WCDMA), Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Wireless Fidelity (Wi-Fi) (e.g., IEEE802.11a, 802.11b, IEEE802.11g, and/or 802.11n, IEEE802.11 n), Voice over Internet Protocol (VoIP), world wide Internet Access (Microwave for Wireless, Wi-Max), other suitable short message protocols, and any other suitable Communication protocols, and may even include those protocols that have not yet been developed.
The memory 320 may be used to store software programs and modules, such as program instructions/modules corresponding to the method for driving the display device in the above-described embodiment, and the processor 380 executes various functional applications and data processing by running the software programs and modules stored in the memory 320, that is, implementing functions for driving the display device. The memory 320 may include high speed random access memory and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, memory 320 may further include memory located remotely from processor 380, which may be connected to terminal device 300 via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The input unit 330 may be used to receive input numeric or character information and generate keyboard, mouse, joystick, optical or trackball signal inputs related to user settings and function control. In particular, the input unit 330 may include a touch-sensitive surface 331 as well as other input devices 332. The touch-sensitive surface 331, also referred to as a touch screen or touch pad, may collect touch operations by a user on or near the touch-sensitive surface 331 (e.g., operations by a user on or near the touch-sensitive surface 331 using a finger, a stylus, or any other suitable object or attachment), and drive the corresponding connection device according to a predetermined program. Alternatively, the touch sensitive surface 331 may comprise two parts, a touch detection means and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 380, and can receive and execute commands sent by the processor 380. In addition, the touch-sensitive surface 331 may be implemented using various types of resistive, capacitive, infrared, and surface acoustic waves. The input unit 330 may comprise other input devices 332 in addition to the touch sensitive surface 331. In particular, other input devices 332 may include, but are not limited to, one or more of a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and the like.
The display unit 340 may be used to display information input by or provided to the user and various graphic user interfaces of the terminal apparatus 300, which may be configured of graphics, text, icons, video, and any combination thereof. The Display unit 340 may include a Display panel 341, and optionally, the Display panel 341 may be configured in the form of an LCD (Liquid Crystal Display), an OLED (Organic Light-Emitting Diode), or the like. Further, touch-sensitive surface 331 may overlay display panel 341, and when touch-sensitive surface 331 detects a touch operation thereon or thereabout, communicate to processor 380 to determine the type of touch event, and processor 380 then provides a corresponding visual output on display panel 341 in accordance with the type of touch event. Although in FIG. 4, touch-sensitive surface 331 and display panel 341 are implemented as two separate components for input and output functions, in some embodiments, touch-sensitive surface 331 and display panel 341 may be integrated for input and output functions.
The terminal device 300 may also include at least one sensor 350, such as a light sensor, a motion sensor, and other sensors. Specifically, the light sensor may include an ambient light sensor that may adjust the brightness of the display panel 341 according to the brightness of ambient light, and a proximity sensor that may turn off the display panel 341 and/or the backlight when the terminal device 300 is moved to the ear. As one of the motion sensors, the gravity acceleration sensor can detect the magnitude of acceleration in each direction (generally, three axes), can detect the magnitude and direction of gravity when the mobile phone is stationary, and can be used for applications of recognizing the posture of the mobile phone (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration recognition related functions (such as pedometer and tapping), and the like; as for other sensors such as a gyroscope, a barometer, a hygrometer, a thermometer, and an infrared sensor, which can be configured in the terminal device 300, detailed descriptions thereof are omitted.
The terminal device 300 may assist the user in e-mail, web browsing, streaming media access, etc. through the transmission module 370 (e.g., Wi-Fi module), which provides the user with wireless broadband internet access. Although fig. 4 shows the transmission module 370, it is understood that it does not belong to the essential constitution of the terminal device 300 and may be omitted entirely as needed within the scope not changing the essence of the invention.
The processor 380 is a control center of the terminal device 300, connects various parts of the entire mobile phone using various interfaces and lines, and performs various functions of the terminal device 300 and processes data by running or executing software programs and/or modules stored in the memory 320 and calling data stored in the memory 320, thereby performing overall monitoring of the mobile phone. Optionally, processor 380 may include one or more processing cores; in some embodiments, processor 380 may integrate an application processor, which primarily handles operating systems, user interfaces, applications, etc., and a modem processor, which primarily handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into processor 380.
Terminal device 300 also includes a power supply 390 (e.g., a battery) for powering the various components, which may be logically coupled to processor 380 via a power management system in some embodiments to manage charging, discharging, and power consumption management functions via the power management system. The power supply 390 may also include any component including one or more of a dc or ac power source, a recharging system, a power failure detection circuit, a power converter or inverter, a power status indicator, and the like.
Although not shown, the terminal device 300 may further include a camera (e.g., a front camera, a rear camera), a bluetooth module, and the like, which are not described in detail herein. Specifically, in this embodiment, the display unit of the terminal device is a touch screen display, the terminal device further includes a memory, and one or more programs, where the one or more programs are stored in the memory and configured to be executed by the one or more processors, and the one or more programs include instructions for:
turning on one of the two switching tubes for a first period and supplying the data signal to a data output line connected to the pixel; and
turning on the other of the two switching tubes in a second period and supplying the data signal to a data output line connected to the pixel.
In specific implementation, the above modules may be implemented as independent entities, or may be combined arbitrarily to be implemented as the same or several entities, and specific implementation of the above modules may refer to the foregoing method embodiments, which are not described herein again.
It will be understood by those skilled in the art that all or part of the steps of the methods of the above embodiments may be performed by instructions or by associated hardware controlled by the instructions, which may be stored in a computer readable storage medium and loaded and executed by a processor.
To this end, the present application provides a storage medium, in which a plurality of instructions are stored, and the instructions can be loaded by a processor to execute the steps in any one of the methods for driving the display device provided by the embodiments of the present application.
Wherein the storage medium may include: read Only Memory (ROM), Random Access Memory (RAM), magnetic or optical disks, and the like.
Since the instructions stored in the storage medium can execute the steps in any method for driving the display device provided in the embodiments of the present application, the advantageous effects that can be achieved by any method for driving the display device provided in the embodiments of the present application can be achieved, and detailed descriptions are omitted here for the detailed description of the foregoing embodiments.
The foregoing detailed description is directed to a display panel provided by an embodiment of the present invention, and the principles and embodiments of the present invention are described herein by using specific examples, which are merely used to help understand the method and the core concept of the present invention; meanwhile, for those skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (10)
1. A display device, comprising:
a plurality of pixels, each of the pixels being connected to a scan line;
a plurality of output data lines, each of the output data lines being connected to each of the pixels;
and a plurality of demultiplexers, each of which is configured to transmit a data signal supplied to a data input line to at least two output data lines among the plurality of output data lines, wherein each of the demultiplexers includes a plurality of switching tubes, at least one of the at least two output data lines transmitting the data signal to the pixel via control of the two switching tubes, and at least one of the at least two output data lines transmitting the data signal directly to the pixel.
2. The display device according to claim 1, wherein the two switching tubes controlling the same output data line are respectively controlled by a set of control signals.
3. The display device according to claim 2, wherein the set of control signals comprises a first control signal and a second control signal, and wherein the first control signal and the second control signal have different operation times in a time domain.
4. The display device according to claim 1, wherein at least one of the at least two output data lines transmits a data signal to the red pixel via control of two switching tubes.
5. The display device according to claim 1, wherein at least one of the at least two output data lines directly transmits a data signal to the blue pixel.
6. The display device according to claim 1, wherein the demultiplexer transmits the data signal supplied to the data input line to three output data lines or six output data lines among the plurality of output data lines.
7. The display device according to claim 1, further comprising: a data driver generating a data signal of the data input line.
8. The display device according to claim 1, wherein the two output data lines controlling the difference are respectively controlled by two sets of control signals.
9. A method for driving the display device of any one of claims 1-8, the method comprising:
turning on one of the two switching tubes for a first period and supplying the data signal to a data output line connected to the pixel; and
turning on the other of the two switching tubes in a second period and supplying the data signal to a data output line connected to the pixel.
10. A storage medium having stored therein a computer program which, when run on a computer, causes the computer to execute a method for driving the display device.
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| CN108182915A (en) * | 2017-12-28 | 2018-06-19 | 深圳市华星光电技术有限公司 | Multiplexing display driver circuit |
| CN113129798A (en) * | 2019-12-31 | 2021-07-16 | 乐金显示有限公司 | Display device and method of driving the same |
| CN111613183A (en) * | 2020-05-28 | 2020-09-01 | 昆山国显光电有限公司 | Display panel, driving method of display panel and display device |
| CN111627367A (en) * | 2020-06-30 | 2020-09-04 | 武汉天马微电子有限公司 | Detection circuit and method of display panel and display panel |
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