CN116400537A - Novel display screen driving method - Google Patents

Novel display screen driving method Download PDF

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Publication number
CN116400537A
CN116400537A CN202211535181.9A CN202211535181A CN116400537A CN 116400537 A CN116400537 A CN 116400537A CN 202211535181 A CN202211535181 A CN 202211535181A CN 116400537 A CN116400537 A CN 116400537A
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display screen
refresh rate
value
data packet
display
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Inventor
林彬
吕陈凤
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CPT Technology Group Co Ltd
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CPT Technology Group Co Ltd
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Priority to CN202211535181.9A priority Critical patent/CN116400537A/en
Publication of CN116400537A publication Critical patent/CN116400537A/en
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    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362—Active matrix addressed cells
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362—Active matrix addressed cells
    • G02F1/136213—Storage capacitors associated with the pixel electrode
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362—Active matrix addressed cells
    • G02F1/136286—Wiring, e.g. gate line, drain line
    • 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
    • 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
    • G09G3/3618—Control of matrices with row and column drivers with automatic refresh of the display panel using sense/write circuits
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/36—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the display of a graphic pattern, e.g. using an all-points-addressable [APA] memory
    • G09G5/39—Control of the bit-mapped memory
    • G09G5/393—Arrangements for updating the contents of the bit-mapped memory
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0209—Crosstalk reduction, i.e. to reduce direct or indirect influences of signals directed to a certain pixel of the displayed image on other pixels of said image, inclusive of influences affecting pixels in different frames or fields or sub-images which constitute a same image, e.g. left and right images of a stereoscopic display
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2370/00—Aspects of data communication
    • G09G2370/10—Use of a protocol of communication by packets in interfaces along the display data pipeline
    • 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
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mathematical Physics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Computer Hardware Design (AREA)
  • Theoretical Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Liquid Crystal Display Device Control (AREA)

Abstract

The invention provides a novel driving method of a display screen, which comprises the following steps: s1, correspondingly binding the value of a Data packet CK with a display screen refresh rate and storing the value in an IC, wherein the higher the display screen refresh rate is, the larger the corresponding value of the Data packet CK is; s2, the control platform sends out an instruction, and whether to switch the refresh rate of the display screen or not; s3, if the display screen refresh rate is switched, the control platform reads the corresponding value of the Data packet CK from the IC after receiving the display screen refresh rate to be switched, and then outputs the corresponding Data time sequence and CK time sequence; if the refresh rate of the display screen is not switched, keeping outputting the current Data time sequence and the CK time sequence; s4, the Data time sequence and the CK time sequence are respectively applied to a source line and a gate line of the display screen pixel transistor. The invention has the advantages that: the display screens with different refresh rates are matched with the values of different Data packets CK, and horizontal crosstalk is eliminated by changing the values of the Data packets CK.

Description

Novel display screen driving method
Technical Field
The invention relates to the technical field of display, in particular to a novel driving method of a display screen.
Background
With the rapid development of the age, people are increasingly using mobile phones. Games, chasing, chatting, video, communication, payment, navigation, etc., are integrated without the mobile phone. In order to meet various requirements, the corresponding functions of mobile phones are increasing. For example, in order to meet the demands for optimizing the image quality of games and chasing dramas, a high refresh rate (hereinafter, referred to as a high brush) has been developed, but the power consumption is relatively large while the high brush is used, and the high brush means high power consumption when not in the game. The mobile phone will maintain a conventional low refresh rate (hereinafter referred to as low refresh rate) state during non-gaming and switch to a high refresh state, referred to as a dynamic refresh rate, during gaming or chasing.
Referring to fig. 1, the display of the liquid crystal display panel is performed by controlling the pixel TFT in the display screen, specifically, controlling the on and off of the pixel TFT by a Gate line (Gate) distributed in a lateral direction, and writing a data voltage to be displayed to the pixel TFT by a Source line (Source) distributed in a longitudinal direction, when the Gate line is at a high level, the pixel TFT is turned on, and the data voltage enters a liquid crystal capacitor and a storage capacitor connected in parallel; when the gate line is at a low level, the pixel TFT is turned off, and the data voltage cannot enter the liquid crystal capacitor and the storage capacitor. The data voltage is used to adjust the transmittance of the liquid crystal.
Since the horizontal gate lines and the vertical source lines are staggered so that there is circuit coupling, when the phases of the CK timing and the Data timing are too close, linear horizontal crosstalk occurs in the display screen due to the circuit coupling, as shown in fig. 2. To eliminate horizontal crosstalk, the Data timing is typically shifted from the CK timing, i.e., the Data packet CK. The prior practice is to share one Data packet CK, namely T, at the refresh rate of each display screen 1 ＝T 2 ＝T 3 As shown in fig. 3. If the T time is too long, i.e. the phase of the CK time sequence and the Data time sequence which are staggered is too large, the charging time of the liquid crystal capacitor and the storage capacitor is insufficient; if the T time is too short, i.e. the phases of the CK time sequence and the Data time sequence are too close, horizontal crosstalk can occur in the display screen.
The frequency of the CK timing controls the refresh rate of the display screen, and when the refresh rate of the display screen is higher, the coupling effect between the gate line and the source line is stronger when the CK timing and the Data timing correspond to each other, so that under the condition that one Data packet CK is shared at the refresh rate of each display screen, there is such a case that: a low refresh rate display displays normally, while a high refresh rate display displays horizontal crosstalk.
Therefore, how to eliminate horizontal crosstalk for display screens with different refresh rates is a technical problem to be solved in the art.
Disclosure of Invention
The invention aims to solve the technical problem of providing a novel driving method for a display screen, so that the display screens with different refresh rates can eliminate horizontal crosstalk.
The invention is realized in the following way: a novel driving method of a display screen comprises the following steps:
s1, correspondingly binding the value of a Data packet CK with a display screen refresh rate and storing the value in an IC, wherein the higher the display screen refresh rate is, the larger the corresponding value of the Data packet CK is;
s2, the control platform sends out an instruction, and whether to switch the refresh rate of the display screen or not;
s3, if the display screen refresh rate is switched, the control platform reads the corresponding value of the Data packet CK from the IC after receiving the display screen refresh rate to be switched, and then outputs the corresponding Data time sequence and CK time sequence;
if the refresh rate of the display screen is not switched, keeping outputting the current Data time sequence and the CK time sequence;
s4, the Data time sequence and the CK time sequence are respectively applied to a source line and a gate line of the display screen pixel transistor.
Further, the display screen has three refresh rates, namely a low refresh rate, a conventional refresh rate and a high refresh rate.
Further, the control platform is a CPU of the mobile phone.
Further, whether the display screen refresh rate is switched or not appears on the display screen of the mobile phone in a form of a dialog box.
Further, the display screen of the mobile phone is a touch screen.
Further, in the step S2, specifically, when the mobile phone switches between an operation mode requiring high quality image quality and an operation mode requiring normal image quality, the control platform issues an instruction to switch the refresh rate of the display screen.
Further, the S1 specifically is:
the required different refresh rates of the display screen are pressed from small to smallTo large permutation, the nth display refresh rate is denoted as R n ，n≥2；
Selecting a display refresh rate R 1 Detecting, namely setting the value of the Data packet CK to be zero, gradually increasing the value of the Data packet CK by taking delta T as an increment, detecting whether the display screen has horizontal crosstalk or not every time the value of the Data packet CK is increased, stopping increasing the value of the Data packet CK when the display screen has no horizontal crosstalk, and setting the value of the Data packet CK to be T at the moment 1 ' value T of Data packet CK 1 ' and display refresh rate R 1 Binding and storing in IC correspondingly;
selecting a display refresh rate R n Detecting with the value T of the Data packet CK n-1 ' as initial value and gradually increasing Δt, detecting whether the display screen has horizontal crosstalk every time the value of the Data packet CK is increased, and stopping increasing the value of the Data packet CK when the display screen has no horizontal crosstalk, wherein the value of the Data packet CK is set as T n ' value T of Data packet CK n ' and display refresh rate R n The corresponding binding is stored in the IC.
The invention has the advantages that: 1. when the refresh rate of the display screen needs to be switched, the corresponding value of the Data packet CK is obtained rapidly by reading the IC, the corresponding Data time sequence and the corresponding CK time sequence are output, and the horizontal crosstalk is eliminated for the display screen with different refresh rates by changing the value of the Data packet CK. 2. The higher the display screen refresh rate is, the larger the corresponding value of the Data packet CK is, the optimal value of the Data packet CK is found out by sequencing the display screen refresh rate and gradually increasing the value of the Data packet CK, and under the condition of solving the horizontal crosstalk of the display screen, the charging rate of the liquid crystal capacitor and the storage capacitor with the largest display screen refresh rate is realized, so that the image quality of the display screen is better.
Drawings
The invention will be further described with reference to examples of embodiments with reference to the accompanying drawings.
Fig. 1 is a circuit schematic diagram of a gate line, a source line and a pixel TFT in the background art.
Fig. 2 is a schematic diagram of horizontal crosstalk of a display screen in the background art.
Fig. 3 is a timing diagram of sharing one Data packet CK at each refresh rate in the background art.
Fig. 4 is a timing diagram of the present invention with different Data packets CK at different refresh rates.
Fig. 5 is a flowchart of a driving method of the novel display screen of the present invention.
Reference numerals: a gate line 1; a source line 2; a pixel TFT3; a liquid crystal capacitor 4; a storage capacitor 5; a parasitic capacitance 6; a display screen 7; horizontal crosstalk 8.
Detailed Description
The embodiment of the invention solves the defect that one Data packet CK is shared under each refresh rate in the background technology by providing the novel driving method of the display screen, and realizes the technical effects that the display screens with different refresh rates all eliminate horizontal crosstalk, and each refresh rate has the respective limit charging rate, so that the image quality is better.
In order to better understand the above technical solutions, the following detailed description will refer to the accompanying drawings and specific embodiments.
Referring to fig. 1 to 5, a preferred embodiment of the present invention.
A novel driving method of a display screen comprises the following steps:
s1, correspondingly binding the value of a Data packet CK with a display screen refresh rate and storing the value in an IC, wherein the higher the display screen refresh rate is, the larger the corresponding value of the Data packet CK is;
s2, the control platform sends out an instruction, and whether to switch the refresh rate of the display screen or not;
s3, if the display screen refresh rate is switched, the control platform reads the corresponding value of the Data packet CK from the IC after receiving the display screen refresh rate to be switched, and then outputs the corresponding Data time sequence and CK time sequence;
if the refresh rate of the display screen is not switched, keeping outputting the current Data time sequence and the CK time sequence;
s4, the Data time sequence and the CK time sequence are respectively applied to a source line and a gate line of the display screen pixel transistor.
The display screen refresh rate is three and divided into threeLow refresh rate, normal refresh rate, and high refresh rate, respectively. Corresponding Data packet CK values are T respectively 1 ’、T 2 ’、T 3 ’。T 1 ’＜T 2 ’＜T 3 . Because the horizontal gate lines and the longitudinal source lines are distributed in a staggered manner so as to have parasitic capacitance (also called coupling capacitance), when the refresh rate of the display screen is higher, the coupling effect between the gate lines and the source lines is stronger when the CK time sequence and the Data time sequence are corresponding, so that the value of the selected Data packet CK is larger when the refresh rate of the display screen is higher, and the display screens with different refresh rates can eliminate horizontal crosstalk.
For ease of understanding, the low refresh rate is 20Hz or 30Hz or 40Hz, the conventional refresh rate is 60Hz, and the high refresh rate is 90Hz or 120Hz, as exemplified herein. The specific low refresh rate, the normal refresh rate and the high refresh rate are set by manufacturers according to actual conditions.
The control platform is a CPU of the mobile phone.
And whether the display screen refresh rate is switched or not is shown in the display screen of the mobile phone in the form of a dialog box. When the user sees that whether the display screen refresh rate is switched, the refresh rate of the display screen is selected, and the selected operation is fed back to the control platform.
The display screen of the mobile phone is a touch screen. The user directly performs a refresh rate selection operation on the display screen.
The step S2 is specifically that when the mobile phone is switched between an operation mode requiring high-quality image quality and an operation mode requiring common image quality, the control platform sends out an instruction whether to switch the refresh rate of the display screen. For ease of understanding, the operation modes requiring high quality image quality are, for example, a game mode, a movie play mode, a video call mode, etc., and the operation modes requiring normal image quality are, for example, a picture browsing mode, a text chat mode, a payment mode, etc. The specific operation modes are divided and set by manufacturers according to actual conditions.
For example, the current cell phone is in a picture browsing mode and the display screen is in a low refresh rate state. After the mobile phone starts a game, the control platform sends an instruction for switching the refresh rate of the display screen, after a user selects a high refresh rate, the control platform enables the display screen to be in a high refresh rate state, and simultaneously directly reads corresponding Data packets CK from the IC, and outputs corresponding CK time sequences and Data time sequences to the gate lines and the source lines, so that the display screen can be ensured to have no horizontal crosstalk under each refresh rate, the charging rate of the liquid crystal capacitor and the storage capacitor can be improved, and the image quality is better.
The following is to find out the optimal Data packet CK value, CK time sequence and Data time sequence phase will not be too close, under the condition of solving the horizontal crosstalk of display screen, CK time sequence and Data time sequence phase will not be too big staggering, ensure liquid crystal capacitance and storage capacitance have the maximum charging rate at each display screen refresh rate. The S1 specifically comprises the following steps: the required different display screen refresh rates are arranged from small to large, and the nth display screen refresh rate is expressed as R n N is more than or equal to 2; in this embodiment, there are three display refresh rates: low refresh rate, normal refresh rate and high refresh rate, ordered from small to large as R 1 ，R 2 ，R 3 。
Selecting a display refresh rate R 1 Detecting, namely setting the value of the Data packet CK to zero, wherein the phases of the CK time sequence and the Data time sequence are not staggered, namely the phases of the CK time sequence and the Data time sequence are overlapped; then, gradually increasing the value of the Data packet CK by taking delta t as an increment, namely gradually staggering the phases of the CK time sequence and the Data time sequence; each time the value of the Data packet CK is increased, whether the display screen has horizontal crosstalk is detected, when the display screen has no horizontal crosstalk, the value of the Data packet CK is stopped being increased, and at the moment, the value of the Data packet CK is set to be T 1 ' value T of Data packet CK 1 ' and display refresh rate R 1 Binding and storing in IC correspondingly; the value T of the Data packet CK at this time 1 The horizontal crosstalk of the display screen can be exactly solved, and the maximum charging rate of the liquid crystal capacitor and the storage capacitor of the display screen can be ensured. Here the display refresh rate R 1 Is a low refresh rate.
Selecting a display refresh rate R n Detecting with the value T of the Data packet CK n-1 ' as initial value and gradually increasing Δt, each time increasing the value of Data packet CK, detecting whether the display screen has horizontal crosstalk, and displayingWhen the screen has no horizontal crosstalk, the increase of the value of the Data packet CK is stopped, and the value of the Data packet CK is set to be T n ' value T of Data packet CK n ' and display refresh rate R n The corresponding binding is stored in the IC.
At the time of determining the value T of the Data packet CK corresponding to the low refresh rate 1 After' a regular refresh rate, i.e. R, is selected 2 Detecting with the value T of the Data packet CK 1 ' being an initial value and gradually increasing Δt until the display screen has no horizontal crosstalk, at which time the value T of the Data packet CK 2 The method solves the horizontal crosstalk of the display screen under the condition of the conventional refresh rate, and can also ensure that the liquid crystal capacitance and the storage capacitance of the display screen have the maximum charging rate.
At the time of determining the value T of the Data packet CK corresponding to the normal refresh rate 2 After' select a high refresh rate, R3, for detection to the value T of the Data packet CK 2 ' being an initial value and gradually increasing Δt until the display screen has no horizontal crosstalk, at which time the value T of the Data packet CK 3 The method solves the horizontal crosstalk of the display screen under the condition of high refresh rate, and can also ensure that the liquid crystal capacitance and the storage capacitance of the display screen have the maximum charging rate.
While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that the specific embodiments described are illustrative only and not intended to limit the scope of the invention, and that equivalent modifications and variations of the invention in light of the spirit of the invention will be covered by the claims of the present invention.

Claims (7)

1. The novel driving method of the display screen is characterized by comprising the following steps of:
s1, correspondingly binding the value of a Data packet CK with a display screen refresh rate and storing the value in an IC, wherein the higher the display screen refresh rate is, the larger the corresponding value of the Data packet CK is;
s2, the control platform sends out an instruction, and whether to switch the refresh rate of the display screen or not;
s3, if the display screen refresh rate is switched, the control platform reads the corresponding value of the Data packet CK from the IC after receiving the display screen refresh rate to be switched, and then outputs the corresponding Data time sequence and CK time sequence;
if the refresh rate of the display screen is not switched, keeping outputting the current Data time sequence and the CK time sequence;
s4, the Data time sequence and the CK time sequence are respectively applied to a source line and a gate line of the display screen pixel transistor.
2. The method of claim 1, wherein the three refresh rates are respectively a low refresh rate, a normal refresh rate, and a high refresh rate.
3. The method for driving a novel display according to claim 1, wherein the control platform is a CPU of a mobile phone.
4. The method of claim 4, wherein the switching of the display refresh rate occurs in the form of a dialog box on the display of the mobile phone.
5. The method for driving a novel display according to claim 5, wherein the display of the mobile phone is a touch screen.
6. The method according to claim 4, wherein S2 is specifically that when the mobile phone switches between an operation mode requiring high quality image quality and an operation mode requiring normal image quality, the control platform issues an instruction to switch the refresh rate of the display screen.
7. The driving method of a novel display screen according to claim 1, wherein S1 specifically is:
the required different display screen refresh rates are arranged from small to large, and the nth display screen refresh rate is expressed as R n ，n≥2；
Selecting a display refresh rate R 1 Detecting, namely setting the value of the Data packet CK to be zero, gradually increasing the value of the Data packet CK by taking delta T as an increment, detecting whether the display screen has horizontal crosstalk or not every time the value of the Data packet CK is increased, stopping increasing the value of the Data packet CK when the display screen has no horizontal crosstalk, and setting the value of the Data packet CK to be T at the moment 1 ' value T of Data packet CK 1 ' and display refresh rate R 1 Binding and storing in IC correspondingly;
selecting a display refresh rate R n Detecting with the value T of the Data packet CK n-1 ' as initial value and gradually increasing Δt, detecting whether the display screen has horizontal crosstalk every time the value of the Data packet CK is increased, and stopping increasing the value of the Data packet CK when the display screen has no horizontal crosstalk, wherein the value of the Data packet CK is set as T n ' value T of Data packet CK n ' and display refresh rate R n The corresponding binding is stored in the IC.
CN202211535181.9A 2022-12-02 2022-12-02 Novel display screen driving method Pending CN116400537A (en)

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Application Number Priority Date Filing Date Title
CN202211535181.9A CN116400537A (en) 2022-12-02 2022-12-02 Novel display screen driving method

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