CN113178176B - Display device and mobile terminal - Google Patents
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- CN113178176B CN113178176B CN202110446040.9A CN202110446040A CN113178176B CN 113178176 B CN113178176 B CN 113178176B CN 202110446040 A CN202110446040 A CN 202110446040A CN 113178176 B CN113178176 B CN 113178176B
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Classifications
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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
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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
- G09G3/3696—Generation of voltages supplied to electrode drivers
Abstract
The invention provides a display device and a mobile terminal, wherein the display device comprises: the display device provided by the invention can be used for effectively avoiding the problem of transverse crosstalk caused by signal delay when the display device displays images by arranging the feedback compensation module.
Description
Technical Field
The present invention relates to the field of display panels, and in particular, to a display device and a mobile terminal.
Background
With the development of display technology, flat panel display devices such as liquid crystal displays (Liquid Crystal Display, LCDs) have been widely used in various consumer electronic products such as mobile phones, televisions, personal digital assistants, digital cameras, notebook computers, and desktop computers, and have become the mainstream of display devices because of their advantages such as high image quality, power saving, thin body, and wide application range.
The working principle of the liquid crystal display is as follows: the data voltage is applied to the pixel electrode, and the common voltage is applied to the common electrode opposite to the pixel electrode, the common electrode is connected to the common electrode line in parallel, and the liquid crystal cell is driven by the voltages applied to the pixel electrode and the common electrode.
However, when the common electrode signals are received by the common electrodes at different positions on the display device, delays are generated due to different wiring lengths, and thus, a problem of lateral crosstalk occurs when the display device displays images.
Disclosure of Invention
The invention provides a display device and a mobile terminal, which effectively solve the problem that the display device generates transverse crosstalk when displaying images due to delay caused by different wiring lengths when receiving common electrode signals.
In order to solve the above-described problems, the present invention provides a display device including:
a signal output port for outputting a common electrode signal;
a plurality of common electrode lines, each of which is electrically connected to a row of common electrodes and the signal output port, respectively, and receives a delayed common electrode signal generated from the signal output port to each of the common electrode lines due to delay; the method comprises the steps of,
and the feedback compensation module is electrically connected with the plurality of public electrode wires and the signal output port and is used for generating a compensation signal according to the public electrode signal and the delayed public electrode signal, so that the compensation signal and the delayed public electrode signal are overlapped into a correction signal and are input to the row of public electrodes.
Further preferably, the plurality of common electrode lines include a proximal common electrode line and a distal common electrode line, a distance between the proximal common electrode line and the signal output port is smaller than a distance between the distal common electrode line and the signal output port, and the feedback compensation module is disposed beside the distal common electrode line.
Further preferably, the feedback compensation module includes a non-inverting input terminal, an inverting input terminal, and a feedback output terminal, the non-inverting input terminal is electrically connected to the signal output port, and the inverting input terminal and the feedback output terminal are electrically connected to the plurality of common electrode lines.
Further preferably, the feedback compensation module includes a selection unit for selectively switching on the feedback output terminal with one of the plurality of common electrode lines according to a display timing of the display device.
Further preferably, the feedback compensation module includes a plurality of feedback compensation units, each of which is electrically connected to one of the plurality of common electrode lines.
Further preferably, each of the common electrode lines is electrically connected to a plurality of the feedback compensation units.
Further preferably, the display device includes a thin film transistor substrate and a color film substrate, and the feedback compensation module is disposed on the thin film transistor substrate or the color film substrate.
Further preferably, the feedback compensation module is formed by a device on the thin film transistor substrate.
Further preferably, the feedback compensation module includes a differential amplifier, a first resistor, a second resistor, and a capacitor.
On the other hand, the invention also provides a mobile terminal, which comprises the display device of any one of the above.
The beneficial effects of the invention are as follows: the present invention provides a display device including: the display device provided by the invention can be used for effectively avoiding the problem of transverse crosstalk caused by signal delay when the display device displays images by arranging the feedback compensation module.
Drawings
In order to more clearly illustrate the technical solutions of the present invention, the drawings that are needed in the description of the embodiments according to the present invention will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a display device according to a first embodiment of the present invention.
Fig. 2 is a schematic diagram of a detailed structure of a display device according to a first embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a display device according to a second embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a mobile terminal according to an embodiment of the present invention.
Fig. 5 is a schematic diagram of a detailed structure of a mobile terminal according to an embodiment of the present invention.
Detailed Description
The technical solutions 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 will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to fall within the scope of the invention.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically connected, electrically connected or can be communicated with each other; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
The following disclosure provides many different embodiments, or examples, for implementing different features of the invention. In order to simplify the present disclosure, components and arrangements of specific examples are described below. They are, of course, merely examples and are not intended to limit the invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not themselves indicate the relationship between the various embodiments and/or arrangements discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize the application of other processes and/or the use of other materials.
The invention aims at the problem that the common electrodes at different positions of the prior display device generate delay due to different wiring lengths when receiving common electrode signals, so that the display device generates transverse crosstalk when displaying images.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a display device 10 according to a first embodiment of the present invention, and the components of the first embodiment of the present invention and the relative positional relationship of the components can be seen in a visual manner.
As shown in fig. 1, the display device 10 includes a plurality of common electrode lines 11, a feedback compensation module 12, a controller 13, and a signal output port a, wherein:
the controller 13 outputs a common electrode signal through the signal output port a;
each common electrode line 11 is electrically connected to one row of common electrodes in the display device 10 and the signal output port a, respectively, and receives a delayed common electrode signal generated by delay from the signal output port a to each common electrode line 11 through the signal output port a;
the feedback compensation module 12 is electrically connected to the plurality of common electrode lines 11 and the signal output port a, and is configured to generate a compensation signal according to the common electrode signal and the delayed common electrode signal, so that the compensation signal and the delayed common electrode signal are superimposed to form a correction signal, and input the correction signal to a corresponding row of common electrodes.
Further, the plurality of common electrode lines 11 include a near-end common electrode line and a far-end common electrode line, the distance between the near-end common electrode line and the signal output port a is smaller than the distance between the far-end common electrode line and the signal output port a, and the delay of the far-end common electrode line is more serious compared with the near-end common electrode line, when the feedback compensation module 12 is electrically connected to only a part of the plurality of common electrode lines 11, the feedback compensation module 12 is preferentially disposed beside the far-end common electrode line.
Specifically, referring to fig. 2, fig. 2 is a schematic diagram of a detailed structure of a display device 10 according to a first embodiment of the present invention, and the components of the first embodiment of the present invention and the relative positional relationship of the components can be seen in a visual manner.
As shown in fig. 2, the feedback compensation module 12 includes a non-inverting input terminal "+", an inverting input terminal "-" and a feedback output terminal "OUT", wherein the non-inverting input terminal "+" is electrically connected to the signal output port a and is used for receiving the signal output port a and outputting the common electrode signal, the inverting input terminal "-" and the feedback output terminal "OUT" are electrically connected to the plurality of common electrode lines 11, the inverting input terminal "-" is used for receiving the delayed common electrode signal on the common electrode lines 11, and the feedback output terminal "OUT" is used for outputting a correction signal formed by superimposing the compensation signal and the delayed common electrode signal on a row of common electrode corresponding to each common electrode line 11. Specifically, the feedback compensation module 12 includes a differential amplifier 15, a first resistor R1, a second resistor R2, and a capacitor C, where the non-inverting input "+", the inverting input "-" and the feedback output "OUT" are located on the differential amplifier 15.
Further, referring to fig. 2, in the present embodiment, there is only one feedback compensation module 12, and the feedback compensation module 12 includes a selection unit 14, and the selection unit 14 selectively turns on the feedback output terminal "OUT" and one of the plurality of common electrode lines 11 according to the display timing of the display device 10, so that the delayed common electrode signal received by the common electrode line 11 is compensated as a correction signal and is input to a corresponding row of common electrodes.
It should be noted that, the display device 10 includes a thin film transistor substrate and a color film substrate, the feedback compensation module 12 may be disposed on the thin film transistor substrate, or may be disposed on the color film substrate, and when the feedback compensation module 12 is disposed on the thin film transistor substrate, the feedback compensation module 12 is formed by devices on the thin film transistor substrate.
Unlike the prior art, a first embodiment according to the present invention provides a display device 10 including: the display device 10 according to the first embodiment of the present invention comprises a feedback compensation module 12, wherein the feedback compensation module 12 is electrically connected to the plurality of common electrode lines 11 and the signal output port a, and the selection unit 14 is configured to selectively connect the feedback output terminal of the feedback compensation module 12 to one of the plurality of common electrode lines 11 according to the display timing of the display device 10, so that the feedback compensation module 12 superimposes the compensation signal generated by the common electrode signal and the delayed common electrode signal to a correction signal according to the common electrode signal and the delayed common electrode signal and inputs the correction signal to the corresponding one of the common electrode lines 11, and the feedback compensation module 12 is configured to electrically connect the feedback compensation module 12 to the plurality of common electrode lines 11 and the signal output port a, so that the delayed common electrode signal received by the common electrode lines 11 can be effectively compensated for the occurrence of the cross talk signal when the display device 10 is effectively prevented from occurring.
Referring to fig. 3, fig. 3 is a schematic structural diagram of a display device 20 according to a second embodiment of the present invention, and the components of the second embodiment of the present invention and the relative positional relationship of the components can be seen in a visual manner.
As shown in fig. 3, this second embodiment is substantially the same in structure as the first embodiment, in which the plurality of common electrode lines 21 in the second embodiment are the same in function and arrangement position as the plurality of common electrode lines 11 in the first embodiment; the feedback compensation module 22 in the second embodiment is the same as the feedback compensation module 12 in the first embodiment in function and arrangement position; the controller 23 in the second embodiment is the same as the controller 13 in the first embodiment in function and setting position; the function and arrangement position of the signal output port a in the second embodiment are the same as those of the signal output port a in the first embodiment, except that in the present embodiment, the feedback compensation modules 22 are plural, and each feedback compensation module 22 is electrically connected to one of the plurality of common electrode lines 11.
In the present embodiment, each common electrode line 11 is electrically connected to one feedback compensation module 22, but in other modifications of the present invention, each common electrode line 11 may be electrically connected to a plurality of feedback compensation modules 22.
Unlike the related art, a second embodiment according to the present invention provides a display device 20 including: the second embodiment of the present invention provides the display device 20, in which the delayed common electrode signals received by the common electrode lines 21 can be compensated by providing the feedback compensation modules 22, so that the problem of cross talk of the display device 20 due to signal delay during displaying an image is effectively avoided.
Referring to fig. 4, fig. 4 is a schematic structural diagram of a mobile terminal according to an embodiment of the present invention, where the mobile terminal may be a smart phone or a tablet computer, and each component of the present invention and the relative positional relationship of each component can be intuitively seen from the figure.
As shown in fig. 4, the mobile terminal 100 includes a processor 101, a memory 102. The processor 101 is electrically connected to the memory 102.
The processor 101 is a control center of the mobile terminal 100, connects various parts of the entire mobile terminal using various interfaces and lines, and performs various functions of the mobile terminal and processes data by running or loading an application program stored in the memory 102 and calling data stored in the memory 102, thereby performing overall monitoring of the mobile terminal.
Referring to fig. 5, fig. 5 is a schematic diagram of a detailed structure of a mobile terminal according to an embodiment of the present invention, where the mobile terminal may be a smart phone or a tablet computer, and the components of the present invention and the relative positional relationship of the components can be intuitively seen from the figure.
Fig. 5 shows a specific block diagram of a mobile terminal 100 according to an embodiment of the present invention. As shown in fig. 5, the mobile terminal 100 may include Radio Frequency (RF) circuitry 110, memory 120 including one or more computer-readable storage media, an input unit 130, a display unit 140, a sensor 150, an audio circuit 160, a transmission module 170 (e.g., wireless fidelity, wi-Fi, wireless Fidelity), a processor 180 including one or more processing cores, and a power supply 190. Those skilled in the art will appreciate that the mobile terminal structure shown in fig. 5 is not limiting of the mobile terminal and may include more or fewer components than shown, or may combine certain components, or a different arrangement of components.
The RF circuit 110 is configured to receive and transmit electromagnetic waves, and to perform mutual conversion between the electromagnetic waves and the electrical signals, so as to communicate with a communication network or other devices. RF circuitry 110 may include various existing circuit components 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 the like. The RF circuitry 110 may communicate with various networks such as the internet, intranets, wireless networks, or other devices via wireless networks.
The wireless network may include a cellular telephone network, a wireless local area network, or a metropolitan area network.
The wireless network may use various communication standards, protocols, and technologies including, but not limited to, global system for mobile communications (Global System for Mobile Communication, GSM), enhanced mobile communications technology (Enhanced Data GSM Environment, EDGE), wideband code Division multiple access technology (Wide-band Code Division Multiple Access, WCDMA), code Division multiple access technology (Code Division Access, CDMA), time Division multiple access technology (Time Division MultipleAccess, TDMA), wireless fidelity technology (Wireless Fidelity, wi-Fi) (e.g., american society of electrical and electronic engineers standards IEEE802.11a, IEEE 802.11.11 b, IEEE802.11g, and/or IEEE802.11 n), internet telephony (Voice over Internet Protocol, voIP), worldwide interoperability for microwave access (Worldwide Interoperability for Microwave Access, wi-Max), other protocols for mail, instant messaging, and short messaging, and any other suitable communication protocols, even those not currently developed.
The memory 120 may be used to store software programs and modules, such as corresponding program instructions in the above-mentioned audio power amplifier control method, and the processor 180 executes various functional applications and data processing by running the software programs and modules stored in the memory 120, that is, to obtain the frequency of the information transmission signal transmitted by the mobile terminal 100. Generating an interference signal and the like. Memory 120 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, the memory 120 may further include memory remotely located relative to the processor 180, which may be connected to the mobile terminal 100 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 130 may be used to receive input numeric or character information and to generate keyboard, mouse, joystick, optical or trackball signal inputs related to user settings and function control. In particular, the input unit 130 may comprise a touch sensitive surface 131 and other input devices 132. The touch-sensitive surface 131, also referred to as a touch display screen or a touch pad, may collect touch operations thereon or thereabout by a user (such as operations of the user on the touch-sensitive surface 131 or thereabout by any suitable object or accessory such as a finger, stylus, etc.), and actuate the corresponding connection means according to a pre-set program. Alternatively, the touch sensitive surface 131 may comprise two parts, a touch detection device and a touch controller. The touch detection device detects the touch azimuth 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 detection device and converts it into touch point coordinates, which are then sent to the processor 180, and can receive commands from the processor 180 and execute them. In addition, the touch-sensitive surface 131 may be implemented in various types of resistive, capacitive, infrared, surface acoustic wave, and the like. In addition to the touch-sensitive surface 131, the input unit 130 may also comprise other input devices 132. In particular, other input devices 132 may include, but are not limited to, one or more of a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, mouse, joystick, etc.
The display unit 140 may be used to display information input by a user or information provided to the user and various graphical user interfaces of the mobile terminal 100, which may be composed of graphics, text, icons, video, and any combination thereof. The display unit 140 may include a display panel 141, and alternatively, the display panel 141 may be configured in the form of an LCD (Liquid Crystal Display ), an OLED (Organic Light-Emitting Diode), or the like. Further, the touch-sensitive surface 131 may overlay the display panel 141, and upon detection of a touch operation thereon or thereabout by the touch-sensitive surface 131, the touch-sensitive surface is transferred to the processor 180 to determine the type of touch event, and the processor 180 then provides a corresponding visual output on the display panel 141 based on the type of touch event. Although in the figures the touch-sensitive surface 131 and the display panel 141 are implemented as two separate components for input and output functions, in some embodiments the touch-sensitive surface 131 may be integrated with the display panel 141 for input and output functions.
The mobile terminal 100 may also include at least one sensor 150, 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 141 according to the brightness of ambient light, and a proximity sensor that may generate an interrupt when the folder is closed or closed. As one of the motion sensors, the gravity acceleration sensor can detect the acceleration in all directions (generally three axes), and can detect the gravity and the direction when the mobile phone is stationary, and can be used for applications of recognizing the gesture of the mobile phone (such as horizontal and vertical screen switching, related games, magnetometer gesture calibration), vibration recognition related functions (such as pedometer and knocking), and the like; other sensors such as gyroscopes, barometers, hygrometers, thermometers, infrared sensors, etc. that may also be configured with the mobile terminal 100 are not described in detail herein.
Audio circuitry 160, speaker 161, and microphone 162 may provide an audio interface between a user and mobile terminal 100. The audio circuit 160 may transmit the received electrical signal converted from audio data to the speaker 161, and the electrical signal is converted into a sound signal by the speaker 161 to be output; on the other hand, the microphone 162 converts the collected sound signal into an electrical signal, receives the electrical signal from the audio circuit 160, converts the electrical signal into audio data, outputs the audio data to the processor 180 for processing, transmits the audio data to, for example, another terminal via the RF circuit 110, or outputs the audio data to the memory 120 for further processing. Audio circuitry 160 may also include an ear bud jack to provide communication of a peripheral ear bud with mobile terminal 100.
The mobile terminal 100 may facilitate user reception of requests, transmission of information, etc. via the transmission module 170 (e.g., wi-Fi module), which provides wireless broadband internet access to the user. Although the transmission module 170 is shown in the drawings, it is understood that it does not belong to the essential constitution of the mobile terminal 100, and may be omitted entirely as required within the scope of not changing the essence of the invention.
The processor 180 is a control center of the mobile terminal 100, connects various parts of the entire handset using various interfaces and lines, and performs various functions of the mobile terminal 100 and processes data by running or executing software programs and/or modules stored in the memory 120 and calling data stored in the memory 120, thereby performing overall monitoring of the mobile terminal. Optionally, the processor 180 may include one or more processing cores; in some embodiments, the processor 180 may integrate an application processor that primarily processes operating systems, user interfaces, applications, etc., with a modem processor that primarily processes wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 180.
The mobile terminal 100 also includes a power supply 190 (e.g., a battery) for powering the various components, which in some embodiments may be logically connected to the processor 180 via a power management system so as to perform functions such as managing charging, discharging, and power consumption via the power management system. The power supply 190 may also include one or more of any of a direct current or alternating current power supply, a recharging system, a power failure detection circuit, a power converter or inverter, a power status indicator, and the like.
Although not shown, the mobile terminal 100 further includes a camera (e.g., front camera, rear camera, etc.), a bluetooth module, a flashlight, etc., which are not described herein. In particular, in the present embodiment, the display unit of the mobile terminal 100 is a touch screen display.
In addition to the embodiments described above, other embodiments of the invention are possible. All technical schemes adopting equivalent replacement or equivalent replacement fall within the protection scope of the invention.
In summary, although the preferred embodiments of the present invention have been described above, the above preferred embodiments are not intended to limit the present invention, and those skilled in the art can make various modifications and adaptations without departing from the spirit and scope of the present invention, so that the scope of the present invention is defined by the claims.
Claims (8)
1. A display device, characterized in that the display device comprises:
a controller outputting a common electrode signal through a signal output port;
a plurality of common electrode lines, each of which is electrically connected to a row of common electrodes and the signal output port, respectively, and receives a delayed common electrode signal generated from the signal output port to each of the common electrode lines due to delay; the method comprises the steps of,
the feedback compensation module is electrically connected with the plurality of public electrode wires and the signal output port and is used for generating a compensation signal according to the public electrode signal and the delayed public electrode signal, so that the compensation signal and the delayed public electrode signal are overlapped into a correction signal and are input to the corresponding row of public electrodes;
the feedback compensation module is arranged beside the far-end public electrode wire;
the feedback compensation module comprises a non-inverting input end, an inverting input end and a feedback output end;
the in-phase input end is electrically connected with the signal output port and is used for receiving the signal output port to output a common electrode signal;
the inverting input end is electrically connected with the plurality of common electrode wires and is used for receiving the delayed common electrode signals on the common electrode wires;
the feedback output end is electrically connected with the plurality of common electrode wires and is used for outputting correction signals formed by superposition of compensation signals and delayed common electrode signals to a row of common electrodes corresponding to each common electrode wire.
2. The display device according to claim 1, wherein the feedback compensation module includes a selection unit to selectively turn on the feedback output terminal with one of the plurality of common electrode lines according to a display timing of the display device.
3. The display device according to claim 1, wherein the feedback compensation module includes a plurality of feedback compensation units, each of which is electrically connected to one of the plurality of common electrode lines.
4. A display device according to claim 3, wherein each of the common electrode lines is electrically connected to a plurality of the feedback compensation units.
5. The display device of claim 1, wherein the display device comprises a thin film transistor substrate and a color film substrate, and the feedback compensation module is disposed on the thin film transistor substrate or the color film substrate.
6. The display apparatus of claim 5, wherein the feedback compensation module is comprised of devices on the thin film transistor substrate.
7. The display device of claim 1, wherein the feedback compensation module comprises a differential amplifier, a first resistor, a second resistor, and a capacitor.
8. A mobile terminal, characterized in that the mobile terminal comprises a display device according to any of claims 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110446040.9A CN113178176B (en) | 2021-04-25 | 2021-04-25 | Display device and mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110446040.9A CN113178176B (en) | 2021-04-25 | 2021-04-25 | Display device and mobile terminal |
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| Publication Number | Publication Date |
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| CN113178176A CN113178176A (en) | 2021-07-27 |
| CN113178176B true CN113178176B (en) | 2023-11-28 |
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| CN202110446040.9A Active CN113178176B (en) | 2021-04-25 | 2021-04-25 | Display device and mobile terminal |
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| CN113178176A (en) | 2021-07-27 |
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