Display driving methods and devices, chips, equipment, media

Abstract

This disclosure relates to a display driving method, apparatus, chip, device, and medium. The display driving method includes acquiring driving signals, which include multiple sets of first driving signals. The voltages corresponding to adjacent sets of first driving signals have opposite polarities, while the voltages corresponding to the same set of first driving signals have the same polarity. Each set of first driving signals includes N pulse signals, where N is an integer greater than 3, and at least two pulse signals with different pulse widths exist among the N pulse signals. For any set of first driving signals, the voltage input to the liquid crystal molecules is perturbed based on that set of first driving signals, and the N rows of liquid crystal molecules corresponding to that set of first driving signals are charged according to the perturbed voltage, so that the brightness of the N rows of pixels corresponding to the N rows of liquid crystal molecules tends to be consistent. The display driving method, apparatus, chip, device, and medium provided in the embodiments of this disclosure can improve or even solve the bright and dark lines phenomenon when displaying a white screen while reducing driving power consumption.

Description

Technical Field

[0001] This disclosure relates to the field of display driver technology, and in particular to a display driver method, apparatus, chip, device, and medium. Background Technology

[0002] Traditionally, a two-line inversion method is used to improve the display quality of LCD TVs. Figure 1 A schematic diagram of 2-line inversion is shown. This traditional method significantly increases display power consumption. To reduce power consumption, a 4-line inversion method is currently commonly used to drive the liquid crystal molecules to reverse their polarity. Figure 2 A schematic diagram of 4-line inversion is shown. However, the 4-line inversion method also has obvious shortcomings. When displaying a white screen (or a pure grayscale screen), bright and dark lines often appear due to insufficient charging of the pixels in the line with inverted polarity. Figure 3 The diagram shows the driver timing diagram for 4-line inversion according to relevant technologies. Figure 4 This diagram illustrates the light and dark patterns that appear during 4-line inversion according to related techniques. During 4-line inversion, as... Figure 3 As shown, since the display potential of the third and fourth rows is the same as that of the second row, the pixels in the third and fourth rows will be more saturated with charge, resulting in... Figure 4 The pixel brightness shown in the first to fourth rows is, in order, dark, bright, brighter, and brighter. This bright-dark pattern hinders the improvement of the display quality of LCD TVs. Summary of the Invention

[0003] In view of this, this disclosure proposes a display driving method, apparatus, chip, device, and medium that can improve or even solve the bright and dark pattern phenomenon of white screen while reducing driving power consumption.

[0004] According to one aspect of this disclosure, a display driving method is provided, the method being used in a display driving chip, the method comprising:

[0005] Acquire a driving signal, the driving signal including multiple sets of first driving signals, the voltage polarity of adjacent sets of first driving signals is opposite, the voltage polarity of the same set of first driving signals is the same, each set of first driving signals includes N pulse signals, N is an integer greater than 3, and there are at least two pulse signals with different pulse widths among the N pulse signals.

[0006] For any set of the first driving signals, the voltage input to the liquid crystal molecules is perturbed based on the set of the first driving signals, and the N rows of liquid crystal molecules corresponding to the set of the first driving signals are charged according to the perturbed voltage, so that the brightness of the N rows of pixels corresponding to the N rows of liquid crystal molecules tends to be consistent.

[0007] In this way, by perturbing the voltage applied to the liquid crystal molecules with pulse signals of at least two pulse widths, and charging the liquid crystal molecules with the same polarity of the perturbed voltage, it is possible to improve or even solve the phenomenon of bright and dark lines when displaying white images while reducing driving power consumption.

[0008] In one possible implementation, the N pulse signals include at least one controlled pulse signal; the perturbation of the voltage input to the liquid crystal molecules based on the first driving signal includes: adjusting the voltage input to the liquid crystal molecules to a preset reference potential during the high-level interval of each controlled pulse signal.

[0009] In this way, adjusting the voltage input to the liquid crystal molecules during the high-level interval of each controlled pulse signal helps reduce driving power consumption and improve the bright and dark lines phenomenon on white screens. Furthermore, the duration of the high-level interval of the controlled pulse signal can be adjusted in a timely manner according to actual display requirements (such as upper power consumption limit and lower brightness limit), making it more flexible.

[0010] In one possible implementation, each group of the first drive signals includes N pulse signals TP. i , i = 1, 2, ..., N, the TP i Let represent the i-th pulse signal; the step of charging the N rows of liquid crystal molecules corresponding to the first driving signal according to the perturbed voltage includes: traversing i sequentially in ascending order and using the i-th pulse signal TP. i The corresponding perturbation voltage charges the liquid crystal molecules in the i-th row.

[0011] In this way, the voltage of the i-th pulse signal TPi in the first driving signal is disturbed sequentially and input to the i-th row of liquid crystal molecules. Under the action of the voltage after such disturbance, the brightness of the N rows of pixels corresponding to the N rows of liquid crystal molecules tends to be consistent.

[0012] In one possible implementation, the at least one controlled pulse signal includes the 2*nth pulse signal from the 2nd pulse signal to the (N-1)th pulse signal, where n takes any integer satisfying 1 ≤ n ≤ N / 2. The pulse width of the at least one controlled pulse signal is controlled by one or more control signals. The pulse width of the 2*nth pulse signal is a first width, and the pulse width of any pulse signal other than the controlled pulse signal is a second width. The first width is less than the second width. Adjusting the voltage input to the liquid crystal molecule to a preset reference potential during the high-level interval of each controlled pulse signal includes: adjusting the voltage input to the liquid crystal molecule to the preset reference potential through charge sharing or charging during the high-level interval of each controlled pulse signal.

[0013] Thus, when at least one controlled pulse signal includes the 2*nth pulse signal from the 2nd pulse signal to the (N-1)th pulse signal, based on the perturbation process of each of the n pulse signals under n-line inversion, the display brightness of the 2ith row can be made to be consistent with the display brightness of the 2i+1th row, thereby improving or even solving the bright and dark pattern phenomenon when displaying a white screen while reducing driving power consumption.

[0014] In one possible implementation, the duration of the low-level interval of any one of the controlled pulse signals is a first length, and the duration of the low-level interval of the first pulse signal is a second length, wherein the first length is less than the second length.

[0015] In this way, the duration of the low-level interval of the controlled pulse signal can be adjusted in a timely manner according to actual display requirements (such as upper limit of power consumption and lower limit of brightness), which is more flexible.

[0016] In one possible implementation, the at least one controlled pulse signal includes a second pulse signal to an (N-1)th pulse signal, the pulse width of the at least one controlled pulse signal is controlled by one or more control signals, the pulse width of the at least one controlled pulse signal comes from a first width set, and the pulse width of the pulse signals other than the controlled pulse signal is a third width, wherein the first width set includes N-2 width values ​​{PW2, ..., PW...} N-1}, where PW2 represents the pulse width of the second pulse signal, and PW N-1The pulse width of the (N-1)th pulse signal is indicated, and the N-1 width values ​​in the first width set are not exactly the same as the third width; adjusting the voltage input to the liquid crystal molecule to a preset reference potential in the high-level interval of each controlled pulse signal includes: adjusting the voltage input to the liquid crystal molecule to the preset reference potential through charge sharing or charging in the high-level interval of each controlled pulse signal.

[0017] Thus, when at least one controlled pulse signal may include the second to the (N-1)th pulse signals, based on the perturbation process of each of the n pulse signals under n-line inversion, while making the display brightness of the 2i-th row and the display brightness of the 2i+1-th row tend to be consistent, it is possible to make the display brightness of the 2i+1-th row and the display brightness of the 2i+2-th row tend to be consistent, thereby improving or even solving the bright and dark lines phenomenon when displaying white screen while reducing driving power consumption.

[0018] In one possible implementation, the duration of the low-level interval of the at least one controlled pulse signal comes from a first length set, and the duration of the low-level interval of the first pulse signal is a second length, wherein the first width set includes N-2 length values, and any length value in the first length set is less than the second length.

[0019] In this way, the duration of the low-level interval of the controlled pulse signal can be adjusted in a timely manner according to actual display requirements (such as upper limit of power consumption and lower limit of brightness), which is more flexible.

[0020] In one possible implementation, the at least one controlled pulse signal includes a first pulse signal to an (N-1)th pulse signal, the pulse width of the at least one controlled pulse signal is controlled by one or more control signals, the pulse width of the at least one controlled pulse signal comes from a second width set, and the pulse width of the pulse signals other than the controlled pulse signal is a fourth width, wherein the second width set includes N-1 width values ​​{PW1, ..., PW...} N-1}, where PW1 represents the pulse width of the first pulse signal, and PW N-1 The pulse width of the (N-1)th pulse signal is indicated, and the N-1 width values ​​in the second width set are not exactly the same as the fourth width; adjusting the voltage input to the liquid crystal molecule to a preset reference potential in the high-level interval of each controlled pulse signal includes: adjusting the voltage input to the liquid crystal molecule to the preset reference potential through charge sharing or charging in the high-level interval of each controlled pulse signal.

[0021] Thus, when at least one controlled pulse signal may include the first to the (N-1)th pulse signals, based on the perturbation process of each of the n pulse signals under n-line inversion, on the basis of making the display brightness of the 2i-th row consistent with the display brightness of the 2i+1-th row and the display brightness of the 2i+1-th row consistent with the display brightness of the 2i+2-th row, the display brightness of the 1st row can be further made consistent with the display brightness of the 2nd row, thereby improving or even solving the bright and dark lines phenomenon when displaying a white screen while reducing driving power consumption.

[0022] In one possible implementation, the duration of the low-level interval of the at least one controlled pulse signal other than the first pulse signal is derived from a second length set, wherein the duration of the low-level interval of the first pulse signal is the second length, and the second length includes N-2 length values, and any length value in the second length set is less than the second length.

[0023] In this way, the duration of the low-level interval of the controlled pulse signal can be adjusted in a timely manner according to actual display requirements (such as upper limit of power consumption and lower limit of brightness), which is more flexible.

[0024] In one possible implementation, the voltage input to the liquid crystal molecules is alternately provided by a positive polarity amplifier and a negative polarity amplifier, such that the polarities of the voltages corresponding to two adjacent sets of the first driving signals are opposite.

[0025] In this way, by alternately providing the voltage of the first drive signal disturbance by the positive and negative polarity amplifiers, it can be ensured that the polarity of the voltage of the disturbance corresponding to the two adjacent sets of first drive signals is opposite, which is convenient and easy to control.

[0026] According to another aspect of this disclosure, a display driving device is provided, the device being used for a display driving chip, the device comprising:

[0027] The acquisition module is configured to acquire driving signals, the driving signals including multiple sets of first driving signals, the voltage polarities corresponding to two adjacent sets of first driving signals are opposite, the voltage polarities corresponding to the same set of first driving signals are the same, each set of first driving signals includes N pulse signals, where N is an integer greater than 3, and there are at least two pulse signals with different pulse widths among the N pulse signals.

[0028] A charging module is configured to, for any set of the first driving signals, perturb the voltage input to the liquid crystal molecules based on the set of the first driving signals, and charge the N rows of liquid crystal molecules corresponding to the set of the first driving signals according to the perturbed voltage, so that the brightness of the N rows of pixels corresponding to the N rows of liquid crystal molecules tends to be consistent.

[0029] In this way, by perturbing the voltage applied to the liquid crystal molecules with pulse signals of at least two pulse widths, and charging the liquid crystal molecules with the same polarity of the perturbed voltage, it is possible to improve or even solve the phenomenon of bright and dark lines when displaying white images while reducing driving power consumption.

[0030] In one possible implementation, the N pulse signals include at least one controlled pulse signal; the perturbation of the voltage input to the liquid crystal molecules based on the first driving signal includes: adjusting the voltage input to the liquid crystal molecules to a preset reference potential during the high-level interval of each controlled pulse signal.

[0031] In this way, adjusting the voltage input to the liquid crystal molecules during the high-level interval of each controlled pulse signal helps reduce driving power consumption and improve the bright and dark lines phenomenon on white screens. Furthermore, the duration of the high-level interval of the controlled pulse signal can be adjusted in a timely manner according to actual display requirements (such as upper power consumption limit and lower brightness limit), making it more flexible.

[0032] In one possible implementation, each group of the first drive signals includes N pulse signals TP. i , i = 1, 2, ..., N, the TP i Let represent the i-th pulse signal; the step of charging the N rows of liquid crystal molecules corresponding to the first driving signal according to the perturbed voltage includes: traversing i sequentially in ascending order and using the i-th pulse signal TP. i The corresponding perturbation voltage charges the liquid crystal molecules in the i-th row.

[0033] In this way, the voltage of the i-th pulse signal TPi in the first driving signal is disturbed sequentially and input to the i-th row of liquid crystal molecules. Under the action of the voltage after such disturbance, the brightness of the N rows of pixels corresponding to the N rows of liquid crystal molecules tends to be consistent.

[0034] In one possible implementation, the at least one controlled pulse signal includes the 2*nth pulse signal from the 2nd pulse signal to the (N-1)th pulse signal, where n takes any integer satisfying 1 ≤ n ≤ N / 2. The pulse width of the at least one controlled pulse signal is controlled by one or more control signals. The pulse width of the 2*nth pulse signal is a first width, and the pulse width of any pulse signal other than the controlled pulse signal is a second width. The first width is less than the second width. Adjusting the voltage input to the liquid crystal molecule to a preset reference potential during the high-level interval of each controlled pulse signal includes: adjusting the voltage input to the liquid crystal molecule to the preset reference potential through charge sharing or charging during the high-level interval of each controlled pulse signal.

[0035] Thus, when at least one controlled pulse signal includes the 2*nth pulse signal from the 2nd pulse signal to the (N-1)th pulse signal, based on the perturbation process of each of the n pulse signals under n-line inversion, the display brightness of the 2ith row can be made to be consistent with the display brightness of the 2i+1th row, thereby improving or even solving the bright and dark pattern phenomenon when displaying a white screen while reducing driving power consumption.

[0036] In one possible implementation, the duration of the low-level interval of any one of the controlled pulse signals is a first length, and the duration of the low-level interval of the first pulse signal is a second length, wherein the first length is less than the second length.

[0037] In this way, the duration of the low-level interval of the controlled pulse signal can be adjusted in a timely manner according to actual display requirements (such as upper limit of power consumption and lower limit of brightness), which is more flexible.

[0038] In one possible implementation, the at least one controlled pulse signal includes a second pulse signal to an (N-1)th pulse signal, the pulse width of the at least one controlled pulse signal is controlled by one or more control signals, the pulse width of the at least one controlled pulse signal comes from a first width set, and the pulse width of the pulse signals other than the controlled pulse signal is a third width, wherein the first width set includes N-2 width values ​​{PW2, ..., PW...} N-1}, where PW2 represents the pulse width of the second pulse signal, and PW N-1 The pulse width of the (N-1)th pulse signal is indicated, and the N-1 width values ​​in the first width set are not exactly the same as the third width; adjusting the voltage input to the liquid crystal molecule to a preset reference potential in the high-level interval of each controlled pulse signal includes: adjusting the voltage input to the liquid crystal molecule to the preset reference potential through charge sharing or charging in the high-level interval of each controlled pulse signal.

[0039] Thus, when at least one controlled pulse signal may include the second to the (N-1)th pulse signals, based on the perturbation process of each of the n pulse signals under n-line inversion, while making the display brightness of the 2i-th row and the display brightness of the 2i+1-th row tend to be consistent, it is possible to make the display brightness of the 2i+1-th row and the display brightness of the 2i+2-th row tend to be consistent, thereby improving or even solving the bright and dark lines phenomenon when displaying white screen while reducing driving power consumption.

[0040] In one possible implementation, the duration of the low-level interval of the at least one controlled pulse signal comes from a first length set, and the duration of the low-level interval of the first pulse signal is a second length, wherein the first width set includes N-2 length values, and any length value in the first length set is less than the second length.

[0041] In this way, the duration of the low-level interval of the controlled pulse signal can be adjusted in a timely manner according to actual display requirements (such as upper limit of power consumption and lower limit of brightness), which is more flexible.

[0042] In one possible implementation, the at least one controlled pulse signal includes a first pulse signal to an (N-1)th pulse signal, the pulse width of the at least one controlled pulse signal is controlled by one or more control signals, the pulse width of the at least one controlled pulse signal comes from a second width set, and the pulse width of the pulse signals other than the controlled pulse signal is a fourth width, wherein the second width set includes N-1 width values ​​{PW1, ..., PW...} N-1}, where PW1 represents the pulse width of the first pulse signal, and PW N-1 The pulse width of the (N-1)th pulse signal is indicated, and the N-1 width values ​​in the second width set are not exactly the same as the fourth width; adjusting the voltage input to the liquid crystal molecule to a preset reference potential in the high-level interval of each controlled pulse signal includes: adjusting the voltage input to the liquid crystal molecule to the preset reference potential through charge sharing or charging in the high-level interval of each controlled pulse signal.

[0043] Thus, when at least one controlled pulse signal may include the first to the (N-1)th pulse signals, based on the perturbation process of each of the n pulse signals under n-line inversion, on the basis of making the display brightness of the 2i-th row consistent with the display brightness of the 2i+1-th row and the display brightness of the 2i+1-th row consistent with the display brightness of the 2i+2-th row, the display brightness of the 1st row can be further made consistent with the display brightness of the 2nd row, thereby improving or even solving the bright and dark lines phenomenon when displaying a white screen while reducing driving power consumption.

[0044] In one possible implementation, the duration of the low-level interval of the at least one controlled pulse signal other than the first pulse signal is derived from a second length set, wherein the duration of the low-level interval of the first pulse signal is the second length, and the second length set includes N-2 length values, and any length value in the second length set is less than the second length.

[0045] In this way, the duration of the low-level interval of the controlled pulse signal can be adjusted in a timely manner according to actual display requirements (such as upper limit of power consumption and lower limit of brightness), which is more flexible.

[0046] In one possible implementation, the voltage input to the liquid crystal molecules is alternately provided by a positive polarity amplifier and a negative polarity amplifier, such that the polarities of the voltages corresponding to two adjacent sets of the first driving signals are opposite.

[0047] In this way, by alternately providing the voltage of the first drive signal disturbance by the positive and negative polarity amplifiers, it can be ensured that the polarity of the voltage of the disturbance corresponding to the two adjacent sets of first drive signals is opposite, which is convenient and easy to control.

[0048] According to another aspect of this disclosure, a chip is provided that includes the above-described display driver.

[0049] According to another aspect of this disclosure, a display device is provided, the display device including a plurality of display units and at least one of the above-described display driving devices.

[0050] In one possible implementation, the display unit includes a display panel, which includes at least one of a liquid crystal display panel, a micro light-emitting diode display panel, a light-emitting diode display panel, a mini light-emitting diode display panel, a quantum dot light-emitting diode display panel, an organic light-emitting diode display panel, a cathode ray tube display panel, a digital light processing display panel, a field emission display panel, a plasma display panel, an electrophoretic display panel, an electrowetting display panel, and a small-pitch display panel.

[0051] According to another aspect of this disclosure, an electronic device is provided, the electronic device including the display device described above.

[0052] According to another aspect of this disclosure, an electronic device is provided, the electronic device comprising: a processor; a memory for storing processor-executable instructions; wherein the processor is configured to implement the above-described display driving method when executing the instructions stored in the memory.

[0053] According to another aspect of this disclosure, a non-volatile computer-readable storage medium is provided, on which computer program instructions are stored, which, when executed by a processor, implement the above-described display driving method.

[0054] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Other features and aspects of this disclosure will become clear from the following detailed description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description

[0055] The accompanying drawings, which are included in and form part of this specification, illustrate exemplary embodiments, features, and aspects of this disclosure together with the specification and serve to explain the principles of this disclosure.

[0056] Figure 1 This diagram illustrates a 2-line inversion.

[0057] Figure 2 This diagram illustrates a 4-line inversion.

[0058] Figure 3 The diagram shows the driver timing diagram for 4-line inversion according to relevant technologies.

[0059] Figure 4 This diagram illustrates the light and dark patterns that appear during 4-line inversion according to related technologies.

[0060] Figure 5 A flowchart is shown for a display driving method provided according to an embodiment of the present disclosure.

[0061] Figure 6 The diagram shows a timing diagram of a 4-line inversion based on a display driver method provided in an embodiment of the present disclosure.

[0062] Figure 7 The diagram shows a timing diagram of a 4-line inversion based on a display driver method provided in an embodiment of the present disclosure.

[0063] Figure 8 The diagram shows a timing diagram of the driver when performing an n-line inversion based on a display driver method according to an embodiment of the present disclosure.

[0064] Figure 9 The diagram shows a timing diagram of the driver when performing an n-line inversion based on a display driver method according to an embodiment of the present disclosure.

[0065] Figure 10 The diagram shows a timing diagram of a 4-line inversion based on a display driver method provided in an embodiment of the present disclosure.

[0066] Figure 11 The diagram shows a timing diagram of a 4-line inversion based on a display driver method provided in an embodiment of the present disclosure.

[0067] Figure 12 The diagram shows a timing diagram of the driver when performing an n-line inversion based on a display driver method according to an embodiment of the present disclosure.

[0068] Figure 13 The diagram shows a timing diagram of the driver when performing an n-line inversion based on a display driver method according to an embodiment of the present disclosure.

[0069] Figure 14 The diagram shows a timing diagram of a 4-line inversion based on a display driver method provided in an embodiment of the present disclosure.

[0070] Figure 15 The diagram shows a timing diagram of a 4-line inversion based on a display driver method provided in an embodiment of the present disclosure.

[0071] Figure 16 The diagram shows a timing diagram of the driver when performing an n-line inversion based on a display driver method according to an embodiment of the present disclosure.

[0072] Figure 17 The diagram shows a timing diagram of the driver when performing an n-line inversion based on a display driver method according to an embodiment of the present disclosure.

[0073] Figure 18 A block diagram of a display driving device provided according to an embodiment of the present disclosure is shown.

[0074] Figure 19 A block diagram of an electronic device provided according to an embodiment of the present disclosure is shown. Detailed Implementation

[0075] Various exemplary embodiments, features, and aspects of this disclosure will now be described in detail with reference to the accompanying drawings. The same reference numerals in the drawings denote elements that have the same or similar functions. Although various aspects of the embodiments are shown in the drawings, they are not necessarily drawn to scale unless specifically indicated otherwise.

[0076] In the description of this disclosure, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this disclosure and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this disclosure.

[0077] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this disclosure, "a plurality of" means two or more, unless otherwise expressly specified.

[0078] In this disclosure, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.

[0079] In this document, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three cases: A alone, A and B simultaneously, and B alone. Furthermore, the term "at least one" in this document means any combination of at least two of any one or more elements. For example, including at least one of A, B, and C can mean including any one or more elements selected from the set consisting of A, B, and C.

[0080] To facilitate understanding of the technical solutions provided by the embodiments of this disclosure by those skilled in the art, the technical environment for implementing the technical solutions will be described below.

[0081] Due to their physical characteristics, liquid crystal displays (LCDs) require polarity inversion for their pixel (also called image pixel) driving voltages. Typically, the polarity is changed at least once per frame, switching between positive and negative polarity. Based on the design of LCDs, common inversion methods include frame inversion, line inversion, column inversion, and dot inversion.

[0082] For column reversal, the traditional approach is to use a two-line inversion (e.g., ...) Figure 1 As shown in the image, this traditional method (using a 4-row inversion method) is used to improve the display quality of LCD TVs, but it significantly increases power consumption. Therefore, to reduce power consumption, a 4-line inversion method (as shown in the image) is generally used. Figure 2(As shown) to drive liquid crystal molecules to reverse polarity. However, the 4-line inversion method also has obvious shortcomings. When displaying a white screen, bright and dark lines often appear due to insufficient charging of the pixels in the polarity-reversed row. In 4-line inversion, as... Figure 3 As shown, since the display potential of the third and fourth rows is the same as that of the second row, the pixels in the third and fourth rows will be more saturated with charge, resulting in the following effect: Figure 4 The pixel brightness in the first to fourth rows shown is, in order, dark, bright, brighter, and brighter. This phenomenon of bright and dark lines hinders the improvement of the display quality of LCD TVs.

[0083] This disclosure provides a display driving method for N-line inversion, enabling polarity reversal of liquid crystal molecules and charging of corresponding pixels, where N ≥ 4. This method uses a set driving signal to perturb the voltage input to the liquid crystal molecules and charges them with the perturbed voltage. The set driving signal may include multiple sets of first driving signals, where adjacent sets of first driving signals correspond to voltages with opposite polarities, and the same set of first driving signals corresponds to voltages with the same polarity. Each set of first driving signals includes N pulse signals with at least two pulse widths. Thus, any set of first driving signals can be used to perturb the voltage input to the liquid crystal molecules, and the N rows of liquid crystal molecules corresponding to that set of first driving signals can be charged according to the perturbed voltage. This makes the brightness of the N rows of pixels corresponding to the N rows of liquid crystal molecules more uniform, improving or even solving the bright-dark fringing phenomenon when displaying a white screen while reducing driving power consumption.

[0084] The display driving method provided in this disclosure can be used in display devices to improve or even solve the bright and dark fringing phenomenon when displaying a white screen. The display device may include, but is not limited to, a monitor and a display driver chip. The monitor can display a certain image under the action of the driving signal output by the display driver chip. The display driver chip can use industry-standard universal serial or parallel interfaces to receive commands and data, and generate driving signals with appropriate voltage, current, timing, and demultiplexing.

[0085] For example, a display can be a Thin Film Transistor-Liquid Crystal Display (TFT-LCD). In a TFT-LCD, the thin film transistor (TFT) functions like a switch. Structurally, each pixel of a liquid crystal display can be simplified as a layer of liquid crystal sandwiched between a pixel electrode and a common electrode; electrically, a pixel can be considered a capacitor. For instance, to charge the pixel P(m,n) in the nth row and mth column, the TFT in the nth row and mth column, i.e., the switch T(m,n), must be turned on, applying a target voltage to the signal line D(m) in the mth column. When the pixel electrode is fully charged (i.e., the voltage applied to the liquid crystal layer is stored in the storage capacitor of each pixel), even if the switch is turned off, the charge in the capacitor is preserved, and a voltage still exists to exert a field effect on the liquid crystal molecules between the electrodes, thus enabling the liquid crystal layer to operate stably. Furthermore, the key to displaying images on a liquid crystal display lies in the molecular orientation of the liquid crystal molecules under the influence of an electric field. Under the influence of an electric field, liquid crystal molecules undergo orientation changes. Through their interaction with polarizers, the intensity of incident light after passing through the liquid crystal layer changes accordingly, thus achieving image display. In other words, the working principle of a TFT-LCD involves applying voltages of different polarities to the liquid crystal molecules to alter their alignment, thereby controlling the amount of light transmitted and outputting light of varying intensities. This voltage is typically controlled by a drive signal provided by the source driver of the display driver chip, and when the TFT is turned on, it is stored in the storage capacitor at the TFT-LCD pixel via the TFT-LCD data lines.

[0086] The display driving method provided in this disclosure can be further used in the display driver chip of a display device. By executing the display driving method, a driving signal can be determined. The driving signal can be determined based on the actual polarity inversion method (i.e., N-line inversion) and other device information, such as the number of groups of first driving signals included in the driving signal and the number of pulse signals included in each group of first driving signals. After determining the driving signal, it can be transmitted to the liquid crystal display screen to drive the liquid crystal molecules in the liquid crystal display screen to perform polarity inversion and charge the corresponding pixels, thereby reducing driving power consumption while improving or even solving the bright and dark fringes phenomenon when displaying a white screen.

[0087] For example, other device information may include the pixel layout of the display screen, so that the number of groups of the first driving signal can be determined based on the value of N in N line inversion and the pixel layout of the display screen. It should be noted that although the display screen pixel layout is used as an example to illustrate other device information, those skilled in the art will understand that the embodiments disclosed herein are not limited thereto. In fact, users can flexibly set other device information according to their personal preferences and / or actual application scenarios.

[0088] In summary, each pixel of the liquid crystal display screen corresponds to a transistor that acts as a switch. When the transistor is turned on, the degree of charging of the pixel is related to the voltage input to the liquid crystal molecules. Based on this, the display driving method provided by the embodiments of this disclosure will be described in detail.

[0089] Figure 5 A flowchart illustrating a display driving method provided according to an embodiment of this disclosure is shown. Figure 5 As shown, the display driving method may include:

[0090] Step S501: Obtain the drive signal.

[0091] Step S502: For any set of first driving signals, the voltage input to the liquid crystal molecules is disturbed based on the set of first driving signals, and the N rows of liquid crystal molecules corresponding to the set of first driving signals are charged according to the disturbed voltage, so that the brightness of the N rows of pixels corresponding to the N rows of liquid crystal molecules tends to be consistent.

[0092] The driving signals may include multiple sets of first driving signals. The number of sets of first driving signals may be related to the pixel arrangement of the liquid crystal display and the value of N in N line inversion.

[0093] The voltages corresponding to the perturbations of the same set of first driving signals have the same polarity. Taking one set of first driving signals as an example, by perturbing the voltage of the N rows of liquid crystal molecules corresponding to that set of first driving signals, a set of continuous voltages with the same polarity can be obtained. This set of voltages is then applied to the N rows of liquid crystal molecules to charge them, making the brightness of the N rows of pixels corresponding to those N rows of liquid crystal molecules tend to be uniform. During the operation of the same set of first driving signals, the bright and dark fringes phenomenon described above when displaying a white screen often occurs. Therefore, the embodiments of this disclosure improve or even solve this problem through flexible and controllable first driving signals.

[0094] The voltage polarities of the perturbations corresponding to two adjacent sets of first driving signals are opposite to achieve N-line inversion (see below for details). In one possible implementation, the voltage input to the liquid crystal molecules is alternately provided by a positive polarity amplifier and a negative polarity amplifier, so that the voltage polarities of the voltages corresponding to two adjacent sets of first driving signals are opposite. In this way, by alternately providing the voltage perturbations of the first driving signals by positive polarity amplifiers and negative polarity amplifiers, it is possible to ensure that the voltage polarities of the perturbations corresponding to two adjacent sets of first driving signals are opposite, which is convenient and easy to control.

[0095] Each group of first drive signals may include N pulse signals TP i TP i Let represent the i-th pulse signal, where i = 1, 2, ..., N, and N is an integer greater than 3. These N pulse signals can be used to perturb the voltage input to the N rows of liquid crystal molecules. The voltage obtained after perturbation can be applied to the N rows of liquid crystal molecules to charge them according to the perturbated voltage, causing the polarity of the N rows of liquid crystal molecules to reverse and the brightness of the corresponding N rows of pixels to become more consistent. In one possible implementation, charging the N rows of liquid crystal molecules corresponding to the first driving signal according to the perturbated voltage in step S502 can include: sequentially traversing i in ascending order and using the i-th pulse signal TP... i The corresponding perturbed voltage charges the liquid crystal molecules in the i-th row (see details below). In this way, the voltage input to the liquid crystal molecules in the i-th row is perturbed sequentially using the i-th pulse signal TPi in the first driving signal. Under the action of the voltage after this perturbing method, the brightness of the N rows of pixels corresponding to the N rows of liquid crystal molecules tends to be consistent.

[0096] Each group of N pulse signals in the first driving signal may include at least one controlled pulse signal. The pulse signal information may include the duration of the high-level (or level) interval and the duration of the low-level interval, where the duration of the high-level interval can be understood as the pulse width. Within the high-level interval of the pulse signal, the voltage input to the liquid crystal molecules can be adjusted.

[0097] In one possible implementation, the controlled pulse signal can represent a pulse signal whose pulse width can be controlled. That is, among the N pulse signals of the same group of first driving signals, there can be pulse signals with fixed (or standard) pulse widths and controlled pulse signals with controllable pulse widths.

[0098] In one possible implementation, the controlled pulse signal can represent a pulse signal whose low-level interval duration (referred to as low-level duration) can be controlled. That is, among the N pulse signals of the same group of first drive signals, there can be pulse signals with fixed (or standard) low-level durations and controlled pulse signals with controllable low-level durations.

[0099] In one possible implementation, the controlled pulse signal can represent a pulse signal whose pulse width and the duration of the low-level interval can both be controlled. That is, among the N pulse signals of the same group of first drive signals, there can be pulse signals with fixed (or standard) pulse width and fixed (or standard) low-level duration, and controlled pulse signals whose pulse width and low-level duration can both be controlled.

[0100] This disclosure does not limit the controllable number or degree of controllability of the pulse width and low-level interval duration of the controlled pulse signal. The control of the controlled pulse signal is aimed at better solving the bright and dark pattern phenomenon when displaying a white screen during the operation of the same group of first driving signals. Therefore, in one possible implementation, based on the fact that each group of N pulse signals of the first driving signal may include at least one controlled pulse signal, it can be determined that: there may be at least two pulse signals with different pulse widths among the N pulse signals of each group of first driving signals. The low-level interval durations corresponding to these two different pulse widths may be the same or different, and this disclosure does not impose any restrictions on this. It can also be determined that: there may be at least two pulse signals with different low-level durations among the N pulse signals of each group of first driving signals.

[0101] In one possible implementation, the perturbation of the voltage input to the liquid crystal molecules based on the first set of driving signals in step S502 may include: adjusting the voltage input to the liquid crystal molecules to a preset reference potential during the high-level interval of each controlled pulse signal (see below for details). This adjustment of the voltage input to the liquid crystal molecules during the high-level interval of each controlled pulse signal helps reduce driving power consumption and improves the bright and dark lines on white screens. Furthermore, it allows for timely adjustment of the high-level interval duration of the controlled pulse signal according to actual display requirements (e.g., upper power consumption limit, lower brightness limit), providing greater flexibility.

[0102] Step S501 obtains driving signals determined according to actual display requirements. Each group of first driving signals includes pulse signals with at least two pulse widths. Step S502 uses the determined first driving signals to perturb the voltage input to the liquid crystal molecules, and applies the perturbed voltage of the same polarity to the N rows of liquid crystal molecules corresponding to the group of first driving signals. This causes the N rows of liquid crystal molecules to achieve polarity reversal and the brightness of the N rows of pixels corresponding to the N rows of liquid crystal molecules to become more consistent. In this way, by perturbing the voltage applied to the liquid crystal molecules with pulse signals of at least two pulse widths and charging the liquid crystal molecules with the perturbed voltage of the same polarity, the bright and dark lines phenomenon when displaying white images can be improved or even solved while reducing driving power consumption.

[0103] When N is 4, according to steps S501 and S502, the voltage after being disturbed by the driving signal can be applied to the liquid crystal molecules to achieve 4-line inversion of the liquid crystal molecules and to charge the pixels.

[0104] Figure 2 This diagram illustrates a 4-line inversion method. Figure 2 As shown, the LCD screen's pixel arrangement is 5 columns (Column 1 to Column 5) and 16 rows (Row 1 to Row 16). Combined with... Figure 2 4-line inversion can be partially understood as follows: the voltage polarity applied to the liquid crystal molecules in the first row (i.e., Row1) to the fourth row (i.e., Row4) of the first column (i.e., Column1) in the current frame is opposite to the voltage polarity applied to the liquid crystal molecules in the fifth row (i.e., Row5) to the eighth row (i.e., Row8) of the first column in the same frame; the voltage polarity applied to the liquid crystal molecules in the first row (i.e., Row1) to the fourth row (i.e., Row4) of the first column in the current frame is opposite to the voltage polarity applied to the liquid crystal molecules in the first row (i.e., Row2) to the fourth row (i.e., Column2) in the same frame; and the voltage polarity applied to the liquid crystal molecules in the first row (i.e., Row1) to the fourth row (i.e., Row4) of the first column in the current frame is opposite to the voltage polarity applied to the same position (i.e., Row1) to the fourth row (i.e., Row1) of the first column in the next frame.

[0105] For each frame, the drive signal can be input separately to Figure 2The first, second, ... fifth columns shown are used to implement the aforementioned 4-line inversion. It should be noted that the drive signals input to different columns can maintain the same timing in the high and low level intervals. That is, among the N pulse signals of each group of first drive signals input to different columns, there can be at least two pulse signals with different pulse widths (furthermore, among the N pulse signals, there can be at least two pulse signals with different low-level durations). However, the polarity of the voltage disturbance corresponding to the timing sequence of the drive signals input to different columns differs. For details, please refer to the description of 4-line inversion above; it will not be repeated here. For simplicity, this embodiment uses the input of one column's drive signal as an example for explanation; the other columns can be described similarly.

[0106] In one example, according to Figure 2 The result of dividing the number of pixel rows (i.e., 16 rows) of the LCD screen by N (i.e., 4) (i.e., 16 / 4 = 4) indicates that the driving signals input to the first column include four sets of first driving signals (denoted as G1, G2, G3, and G4). G1 corresponds to Rows 1 to 4, G2 corresponds to Rows 5 to 8, G3 corresponds to Rows 9 to 12, and G4 corresponds to Rows 13 to 16.

[0107] like Figure 2 As shown, in the current frame, a positive polarity amplifier can provide the voltage applied to the liquid crystal molecules in Rows 1 to 4 and Rows 9 to 12, and a negative polarity amplifier can provide the voltage applied to the liquid crystal molecules in Rows 5 to 8 and Rows 13 to 16. In the next frame, the voltage applied to the liquid crystal molecules in Rows 1 to 4 and Rows 9 to 12 can be changed to be provided by a negative polarity amplifier, and the voltage applied to the liquid crystal molecules in Rows 5 to 8 and Rows 13 to 16 can be changed to be provided by a positive polarity amplifier. Thus, in the current frame, the voltage polarity of the perturbation voltages corresponding to G1 and G3 is positive, and the voltage polarity of the perturbation voltages corresponding to G2 and G4 is negative; in the next frame, the voltage polarity of the perturbation voltages corresponding to G1 and G3 changes to negative, and the voltage polarity of the perturbation voltages corresponding to G2 and G4 changes to positive.

[0108] G1, G2, G3, and G4 can each include four pulse signals, and the pulse widths of these four pulse signals can have at least two different widths. Details on how to set the pulse widths are provided below.

[0109] Given the determined driving signals input to the first column, for any group of G1, G2, G3, and G4, the voltage input to the liquid crystal molecules is perturbed based on the first driving signal of that group, and the perturbed voltage is applied to the 4 rows of liquid crystal molecules corresponding to the first driving signal of that group, so that the polarity of the 4 rows of liquid crystal molecules is reversed and the brightness of the 4 rows of pixels corresponding to the 4 rows of liquid crystal molecules tends to be consistent.

[0110] Taking G1 as an example, in the current frame, the voltage of the positive polarity of the liquid crystal molecules input to Row1 to Row4 can be perturbed based on G1, and the perturbed continuous positive polarity voltage can be applied to the liquid crystal molecules in Row1 to Row4 to charge the pixels in Row1 to Row4, so that the liquid crystal molecules in Row1 to Row4 reverse polarity and the brightness of the pixels in Row1 to Row4 tends to be consistent.

[0111] The four pulse signals included in G1 can be denoted as TP1, TP2, TP3, and TP4. The perturbed voltage corresponding to the first pulse signal TP1 can be used to charge the liquid crystal molecules in the first row. Specifically, TP1 perturbs the voltage input to the liquid crystal molecules at Row 1, and the perturbed voltage is applied to the liquid crystal molecules at Row 1, thus charging the pixels at Row 1. Similarly, the perturbed voltage corresponding to the second pulse signal TP2 can be used to charge the liquid crystal molecules in the second row. Specifically, TP2 perturbs the voltage input to the liquid crystal molecules at Row 2, and the perturbed voltage is applied to the liquid crystal molecules at Row 2, thus charging the pixels at Row 2. Finally, the perturbed voltage corresponding to the third pulse signal TP3 can be used to charge the liquid crystal molecules in the second row. Charging the liquid crystal molecules in the third row involves perturbing the voltage input to the liquid crystal molecules at Row 3 based on TP3, applying the perturbed voltage to the liquid crystal molecules at Row 3, and charging the pixels at Row 3. Similarly, charging the liquid crystal molecules in the fourth row can be achieved using the perturbed voltage corresponding to the fourth pulse signal TP4. This involves perturbing the voltage input to the liquid crystal molecules at Row 4 based on TP4, applying the perturbed voltage to the liquid crystal molecules at Row 4, and charging the pixels at Row 4. This results in polarity reversal of the liquid crystal molecules from Row 1 to Row 4 and makes the brightness of the pixels from Row 1 to Row 4 more consistent. The driving process of other first driving signals can be found in G1, and will not be described in detail in this embodiment for simplicity.

[0112] Similarly, in the next frame, based on the first driving signal, the negative polarity voltage of the liquid crystal molecules input to Row1 to Row4 can be disturbed, and the disturbed continuous negative polarity voltage can be applied to the liquid crystal molecules in Row1 to Row4 to charge the pixels in Row1 to Row4, so that the liquid crystal molecules in Row1 to Row4 undergo polarity reversal (i.e., change from positive polarity in the current frame to negative polarity in the next frame) and the brightness of the pixels in Row1 to Row4 tends to be consistent.

[0113] Taking TP1 in G1 as an example, assuming TP1 is a controlled pulse signal included in G1, during the high-level range of G1, the voltage of the liquid crystal molecules input to Row1 is adjusted to a preset reference potential VREF. The reference potential VREF and VREF1 and VREF2 mentioned below can be flexibly set according to personal preference and / or actual application scenarios, and this embodiment does not limit this. The driving process of other possible controlled pulse signals in G1 can be found in TP1, and will not be described in detail in this embodiment for the sake of brevity.

[0114] When N is n (n is any integer greater than 4), according to steps S501 and S502, the voltage after being disturbed by the driving signal can be applied to the liquid crystal molecules to realize n-line inversion of the liquid crystal molecules and charge the pixels.

[0115] The n-line inversion is similar to the 4-line inversion described above, and for the sake of simplicity, it will not be described again here.

[0116] Similarly, in 4-line inversion, each group of first driving signals in n-line inversion can include n pulse signals, and these n pulse signals have at least two different pulse widths. The method for setting the pulse width is detailed later. For any group of first driving signals, the group of first driving signals can be used to perturb the continuous voltages of the same polarity input to the liquid crystal molecules from Rowi to Rowj. The perturbed continuous voltages of the same polarity are then applied to the liquid crystal molecules from Rowi to Rowj and charge the pixels from Rowi to Rowj, causing the liquid crystal molecules from Rowi to Rowj to reverse their polarity and making the brightness of the pixels from Rowi to Rowj more uniform. Rowi to Rowj consists of n rows, where i and j are both positive integers.

[0117] In one possible implementation, the information of the N pulse signals (i.e., the pulse width and the duration of the low-level interval) can be directly controlled by the timing control chip. For example, the timing control chip can send the pulse signal information to the display driver chip via mini-LVDS.

[0118] In one possible implementation, the information of the N pulse signals (i.e., pulse width and the duration of the low-level interval) can be provided by registers. For example, the pulse width of the controlled pulse signal (i.e., the 2*i-th pulse signal described below) is controlled by a first register, and the pulse width of the pulse signals other than the controlled pulse signal is controlled by a second register. The number of first registers can be one, or it can be the same as the number of controlled pulse signals. The number of second registers can be one, or it can be the same as the number of pulse signals other than the controlled pulse signals. This disclosure does not limit the number or type of registers.

[0119] The following describes the control method for the controlled pulse signal in terms of pulse width provided in the embodiments of this disclosure. It should be noted that the duration of the low-level interval of the pulse signal can be flexibly set according to personal preference and / or actual application scenarios, and the embodiments of this disclosure do not limit this.

[0120] For each group of N pulse signals in the drive signal set, the pulse width (i.e., the duration of the high-level interval) of each pulse signal may not be exactly the same, and the duration of the high-level interval of each pulse signal may not be exactly the same. For N line inversion (N≥4), the N pulse signals of each group of N pulse signals in the drive signal set (i.e., the first pulse signal TP1, the second pulse signal TP2, ..., the (N-1)th pulse signal TP... N-1 The Nth pulse signal TP N It may include at least one controlled pulse signal.

[0121] In one possible implementation, at least one controlled pulse signal may include the 2*ith pulse signal from the 2nd pulse signal to the (N-1)th pulse signal, where i takes any integer satisfying 1≤i≤(N-1) / 2, the pulse width of at least one controlled pulse signal is controlled by one or more control signals, the pulse width of the 2*ith pulse signal is the first width, and the pulse width of any pulse signal other than the controlled pulse signal is the second width, the first width is less than the second width.

[0122] In the case where at least one controlled pulse signal includes the 2*i pulse signal among the 2nd to N-1th pulse signals, adjusting the voltage input to the liquid crystal molecule to a preset reference potential during the high-level interval of each controlled pulse signal may include: adjusting the voltage input to the liquid crystal molecule to a preset reference potential through charge sharing or charging during the high-level interval of each controlled pulse signal.

[0123] When at least one controlled pulse signal includes the 2*ith pulse signal from the 2nd to the (N-1)th pulse signals, the duration of the low-level interval of any controlled pulse signal can be a first length, and the duration of the low-level interval of the 1st pulse signal can be a second length, with the first length being less than the second length. This allows for timely adjustment of the duration of the low-level interval of the controlled pulse signal according to actual display requirements (e.g., upper power consumption limit, lower brightness limit), providing greater flexibility.

[0124] When N is 4, i can be 1. In this case, the 2*ith pulse signal (i.e., the 2nd pulse signal) from the 2nd to the (N-1)th pulse signal (i.e., the 3rd pulse signal) can be used as the controlled pulse signal.

[0125] The following is a schematic illustration based on the first drive signal G1 (G1 includes the first pulse signal TP1, the second pulse signal TP2, the third pulse signal TP3, and the fourth pulse signal TP4) under the above 4-line inversion:

[0126] TP1 is used to perturb the voltage input to the liquid crystal molecules at Row 1. The duration of the high-level interval (i.e., pulse width) of TP1 is PW1, and the duration of the low-level interval is the second length PW1'. The second pulse signal TP2 is a controlled pulse signal, used to perturb the voltage input to the liquid crystal molecules at Row 2. The duration of the high-level interval (i.e., pulse width) of TP2 is the first width PW2, and the duration of the low-level interval is the first length PW2'. TP3 is used to perturb the voltage input to the liquid crystal molecules at Row 3. The duration of the high-level interval (i.e., pulse width) of TP3 is PW3, and the duration of the low-level interval is the third length PW3'. TP4 is used to perturb the voltage input to the liquid crystal molecules at Row 4. The duration of the high-level interval (i.e., pulse width) of TP4 is PW4, and the duration of the low-level interval is the fourth length PW4'.

[0127] PW1, PW3, and PW4 can all be second widths, with the first width PW2 being smaller than the second width. This can be understood as shortening the pulse width of TP2 in G1. The first length PW2' is smaller than the second length PW1', which can be understood as extending the low-level interval of TP1 and shortening the low-level interval of TP2 in G1. The third length PW3' can be adjusted based on PW2 and PW2', which can be understood as adjusting the low-level interval of TP3 in G1. The fourth length PW4' can be adjusted based on PW3 and PW3', which can be understood as adjusting the low-level interval of TP4 in G1. It should be noted that the pulse width and low-level interval duration of each pulse signal can be flexibly set according to personal preference and / or actual application scenarios, and this embodiment does not limit this.

[0128] Figure 6 The diagram shows a timing diagram for 4-line inversion based on a display driver method according to an embodiment of the present disclosure. Figure 7 This diagram illustrates the driving timing diagram for n-line inversion based on a display driving method according to an embodiment of the present disclosure. Figure 6 , Figure 7 As shown, ① corresponds to the voltage state applied to the liquid crystal molecule of Row1, ② corresponds to the voltage state applied to the liquid crystal molecule of Row2, ③ corresponds to the voltage state applied to the liquid crystal molecule of Row3, and ④ corresponds to the voltage state applied to the liquid crystal molecule of Row4. The polarity of the voltage output by Output a is opposite to the polarity of the voltage output by Output b.

[0129] In one example, such as Figure 6 As shown, in the high-level range of the pulse signal TP0, charge sharing (such as...) can be achieved. Figure 6 In the CS On process, the voltage input to the liquid crystal molecules (from Output a) is adjusted to a preset reference potential VREF1. Afterward, the voltage applied to the liquid crystal molecules is changed from being provided by Output a to being provided by Output b, ensuring a change in the polarity of the voltage applied to the liquid crystal molecules. During the TP1 perturbation process, the voltage input to the Row1 liquid crystal molecules can be perturbed by extending the duration of the low-level interval of TP1, thereby charging the pixels at Row1. During the TP2 perturbation process, the duration of the low-level interval of TP2 and the pulse width can be shortened to charge (e.g., ...). Figure 6The voltage input to the liquid crystal molecules in Row 2 is perturbed using a Short to VREF process to bring it closer to the reference potential VREF2, thereby charging the pixel at Row 2. During the TP3 perturbation process, the voltage input to the liquid crystal molecules in Row 3 is perturbed by adjusting the duration of the low-level interval in TP3, thus charging the pixel at Row 3. Similarly, during the TP4 perturbation process, the voltage input to the liquid crystal molecules in Row 4 is perturbed by adjusting the duration of the low-level interval in TP4, thus charging the pixel at Row 4. After the TP4 perturbation ends, the liquid crystal molecules from Row 1 to Row 4 have completed polarity reversal. In this way, by extending the duration of the low-level interval of TP1 and shortening the duration of the low-level interval of TP2, the display brightness of Row1 and Row2 can be adjusted to make their display brightness similar. Then, by shortening the pulse width of TP2 and adjusting the duration of the low-level interval of TP3, the display brightness of Row2 and Row3 can be adjusted to make their display brightness similar. Finally, by extending the duration of the low-level interval of TP4, the display brightness of Row3 and Row4 can be adjusted to make their display brightness similar. This reduces driving power consumption while improving or even solving the bright and dark lines phenomenon when displaying white screens.

[0130] In one example, such as Figure 7 As shown, in the high-level range of the pulse signal TP0, charge sharing (such as...) can be achieved. Figure 7 In the CS On process, the voltage input to the liquid crystal molecules (from Output a) is adjusted to the preset reference potential VREF1. Afterward, the voltage applied to the liquid crystal molecules is changed from being provided by Output a to being provided by Output b, ensuring a change in the polarity of the voltage applied to the liquid crystal molecules. During the TP1 perturbation process, the voltage input to the Row1 liquid crystal molecules can be perturbed by extending the duration of the low-level interval of TP1, thereby charging the pixels at Row1. During the TP2 perturbation process, the duration of the low-level interval of TP2 and the pulse width can be shortened, and charge sharing (e.g., ...) can be used. Figure 7The voltage input to the liquid crystal molecules in Row 2 is perturbed using a CS-On process (as described in the original text) to bring it closer to the reference potential VREF2, thereby charging the pixel at Row 2. During the TP3 perturbing process, the voltage input to the liquid crystal molecules in Row 3 is perturbed by adjusting the duration of the low-level interval in TP3, thus charging the pixel at Row 3. Similarly, during the TP4 perturbing process, the voltage input to the liquid crystal molecules in Row 4 is perturbed by adjusting the duration of the low-level interval in TP4, thus charging the pixel at Row 4. After the TP4 perturbing process ends, the liquid crystal molecules from Row 1 to Row 4 have completed polarity reversal. In this way, by extending the duration of the low-level interval of TP1 and shortening the duration of the low-level interval of TP2, the display brightness of Row1 and Row2 can be adjusted to make their display brightness similar. Then, by shortening the pulse width of TP2 and adjusting the duration of the low-level interval of TP3, the display brightness of Row2 and Row3 can be adjusted to make their display brightness similar. Finally, by extending the duration of the low-level interval of TP4, the display brightness of Row3 and Row4 can be adjusted to make their display brightness similar. This reduces driving power consumption while improving or even solving the bright and dark lines phenomenon when displaying white screens.

[0131] When N takes the value n (n is any integer greater than 4), i can take any integer satisfying 1≤i≤(N-1) / 2. In this case, the 2*ith pulse signal (i.e., the 2nd pulse signal, the 4th pulse signal, the 6th pulse signal, etc.) from the 2nd pulse signal to the (N-1)th pulse signal (i.e., the 3rd pulse signal) can be used as the controlled pulse signal.

[0132] Similarly, for the 4-line inversion described above, for the first driving signal G1 under n-line inversion (G1 includes the first pulse signal TP1, the second pulse signal TP2, ..., a total of n pulse signals), we can obtain the following: In G1, the pulse width and low-level interval duration of TP2, TP4, TP6, ... are shortened; the low-level interval of TP1 is extended; and the pulses of TP3, TP5, ..., TP6 are adjusted. n The duration of the low-level interval.

[0133] Figure 8 The diagram illustrates a timing diagram for n-line inversion based on a display driver method according to an embodiment of this disclosure. Figure 9 This diagram illustrates a timing diagram for n-line inversion based on a display driver method provided in an embodiment of this disclosure. Figure 8 , Figure 9As shown above, the same principle applies. Figure 6 , Figure 7 The correspondence is as follows: ①②……⑦ correspond to the voltage states applied to the liquid crystal molecules of Row1, Row2……Row7, respectively, which will not be elaborated here.

[0134] In one example, such as Figure 8 As shown, in the high-level range of the pulse signal TP0, charge sharing (such as...) can be achieved. Figure 8 In the CS On process, the voltage input to the liquid crystal molecules (from Output a) is adjusted to a preset reference potential VREF1. Afterward, the voltage applied to the liquid crystal molecules is changed from being provided by Output a to being provided by Output b, ensuring a change in the polarity of the voltage applied to the liquid crystal molecules. During the TP1 perturbation process, the voltage input to the Row1 liquid crystal molecules can be perturbed by extending the duration of the low-level interval of TP1, thereby charging the pixels at Row1. During the TP2 perturbation process, the duration of the low-level interval of TP2 and the pulse width can be shortened to charge (e.g., ...). Figure 8 The voltage input to the liquid crystal molecules at Row2 is perturbed using a Short to VREF process to bring it closer to the reference potential VREF2, thereby charging the pixel at Row2. During the perturbation process at TP3, the voltage input to the liquid crystal molecules at Row3 can be perturbed by adjusting the duration of the low-level interval of TP3, thus charging the pixel at Row3. The perturbation process at TP4 is similar to that at TP2, and the perturbation process at TP5 is similar to that at TP3, and so on. n During the disturbance process, TP can be adjusted. n The voltage input to the Row liquid crystal molecules is disturbed by varying the duration of the low-level interval, thereby charging the pixels at the Row. In TP n After the disturbance ends, the liquid crystal molecules at Row1 to Row2 complete polarity reversal. Therefore, by extending the duration of the low-level interval of TP1 and shortening the duration of the low-level interval of TP2, the display brightness of Row1 and Row2 can be adjusted to make their display brightness similar. Then, by shortening the pulse width of TP2 and adjusting the duration of the low-level interval of TP3, the display brightness of Row2 and Row3 can be adjusted to make their display brightness similar, and so on, until the brightness of TP3 is adjusted... n The duration of the low-level interval can be adjusted to change the display brightness of Row(n-1) and Row, making their display brightness similar. This reduces driving power consumption while improving or even solving the bright and dark lines phenomenon when displaying white screens.

[0135] In one example, such as Figure 9 As shown, in the high-level range of the pulse signal TP0, charge sharing (such as...) can be achieved. Figure 9 In the CS On process, the voltage input to the liquid crystal molecules (from Output a) is adjusted to the preset reference potential VREF1. Afterward, the voltage applied to the liquid crystal molecules is changed from being provided by Output a to being provided by Output b, ensuring a change in the polarity of the voltage applied to the liquid crystal molecules. During the TP1 perturbation process, the voltage input to the Row1 liquid crystal molecules can be perturbed by extending the duration of the low-level interval of TP1, thereby charging the pixels at Row1. During the TP2 perturbation process, the duration of the low-level interval of TP2 and the pulse width can be shortened, and charge sharing (e.g., ...) can be used. Figure 9 The voltage input to the liquid crystal molecules at Row2 is perturbed using a CS-On process (in the TP3 process) to bring it closer to the reference potential VREF2, thereby charging the pixel at Row2. During the perturbation process at TP3, the voltage input to the liquid crystal molecules at Row3 can be perturbed by adjusting the duration of the low-level interval of TP3, thus charging the pixel at Row3. The perturbation process at TP4 is similar to that at TP2, and the perturbation process at TP5 is similar to that at TP3, and so on. n During the disturbance process, TP can be adjusted. n The voltage input to the Row liquid crystal molecules is disturbed by varying the duration of the low-level interval, thereby charging the pixels at the Row. In TP N After the disturbance ends, the liquid crystal molecules at Row1 to Row2 complete polarity reversal. Therefore, by extending the duration of the low-level interval of TP1 and shortening the duration of the low-level interval of TP2, the display brightness of Row1 and Row2 can be adjusted to make their display brightness similar. Then, by shortening the pulse width of TP2 and adjusting the duration of the low-level interval of TP3, the display brightness of Row2 and Row3 can be adjusted to make their display brightness similar, and so on, until the brightness of TP3 is adjusted... n The duration of the low-level interval can be adjusted to change the display brightness of Row(n-1) and Row, making their display brightness similar. This reduces driving power consumption while improving or even solving the bright and dark lines phenomenon when displaying white screens.

[0136] Thus, when at least one controlled pulse signal includes the 2*nth pulse signal from the 2nd pulse signal to the (N-1)th pulse signal, based on the perturbation process of each of the n pulse signals under n-line inversion, the display brightness of the 2ith row can be made to be consistent with the display brightness of the 2i+1th row, thereby improving or even solving the bright and dark pattern phenomenon when displaying a white screen while reducing driving power consumption.

[0137] In one possible implementation, at least one controlled pulse signal may include a second pulse signal to an (N-1)th pulse signal. The pulse width of the at least one controlled pulse signal is controlled by one or more control signals. The pulse width of the at least one controlled pulse signal comes from a first width set, and the pulse width of the pulse signals other than the controlled pulse signal is a third width. The first width set includes N-2 width values ​​{PW2, ..., PW...} N-1}, PW2 represents the pulse width of the second pulse signal, PW N-1 This represents the pulse width of the (N-1)th pulse signal. The N-1 width values ​​in the first width set are not exactly the same as the third width. Furthermore, the N-1 width values ​​in the first width set can all be smaller than the third width.

[0138] In cases where at least one controlled pulse signal may include the second to the (N-1)th pulse signals, adjusting the voltage input to the liquid crystal molecules to a preset reference potential during the high-level interval of each controlled pulse signal may include: adjusting the voltage input to the liquid crystal molecules to a preset reference potential through charge sharing or charging during the high-level interval of each controlled pulse signal.

[0139] When at least one controlled pulse signal may include a second to an (N-1)th pulse signal, the duration of the low-level interval of the at least one controlled pulse signal is derived from a first length set, and the duration of the low-level interval of the first pulse signal is a second length. The first width set includes N-2 length values, and any length value in the first length set is less than the second length. This allows for timely adjustment of the duration of the low-level interval of the controlled pulse signal according to actual display requirements (e.g., upper power consumption limit, lower brightness limit), providing greater flexibility.

[0140] When N is 4, the second to the (N-1)th pulse signals (i.e., the second and third pulse signals) can be used as the controlled pulse signals.

[0141] The following is a schematic illustration based on the first drive signal G1 (G1 includes the first pulse signal TP1, the second pulse signal TP2, the third pulse signal TP3, and the fourth pulse signal TP4) under the above 4-line inversion:

[0142] TP1 is used to perturb the voltage of the liquid crystal molecules input to Row 1. The duration of the high-level interval (i.e., pulse width) of TP1 is PW1, and the duration of the low-level interval is the second length PW1'. The second pulse signal TP2 is a controlled pulse signal used to perturb the voltage of the liquid crystal molecules input to Row 2. The duration of the high-level interval (i.e., pulse width) of TP2 comes from PW2 in the first width set, and the duration of the low-level interval comes from PW2' in the first length set. The third pulse signal TP3 is also a controlled pulse signal used to perturb the voltage of the liquid crystal molecules input to Row 3. The duration of the high-level interval (i.e., pulse width) of TP3 comes from PW3 in the first width set, and the duration of the low-level interval comes from PW3' in the first length set. TP4 is used to perturb the voltage of the liquid crystal molecules input to Row 4. The duration of the high-level interval (i.e., pulse width) of TP4 is PW4, and the duration of the low-level interval is the fifth length PW4'.

[0143] PW1 and PW4 can both be the third width, and PW2 and PW3 in the first width set can both be smaller than the third width, which can be understood as shortening the pulse width of TP2 and TP3 in G1; PW2' and PW3' in the first length set can both be smaller than the second length, which can be understood as extending the low-level interval of TP1 and shortening the low-level interval of TP2 in G1; PW3' can be adjusted according to PW2 and PW2', which can be understood as adjusting the low-level interval of TP3 in G1; the fifth length PW4' can be adjusted according to PW3 and PW3', which can be understood as adjusting the low-level interval of TP4 in G1. PW2 and PW3 can be the same or different, and PW2' and PW3' can be the same or different. In fact, the pulse width and low-level interval duration of each pulse signal can be flexibly set according to personal preference and / or actual application scenario, and this disclosure embodiment does not limit this.

[0144] Figure 10 The diagram shows a timing diagram of a 4-line inversion based on a display driver method provided in an embodiment of the present disclosure. Figure 11 This diagram illustrates a driver timing diagram for 4-line inversion based on a display driver method provided in an embodiment of this disclosure. Figure 10 , Figure 11 As shown above, the same principle applies. Figure 6 , Figure 7The correspondence is as follows: ①②③④ correspond one-to-one with the voltage states applied to the liquid crystal molecules of Row1, Row2, Row3, and Row4, respectively, which will not be elaborated here.

[0145] In one example, such as Figure 10 As shown, in the high-level range of the pulse signal TP0, charge sharing (such as...) can be achieved. Figure 10 In the CS On process, the voltage input to the liquid crystal molecules (from Output a) is adjusted to a preset reference potential VREF1. Afterward, the voltage applied to the liquid crystal molecules is changed from being provided by Output a to being provided by Output b, ensuring a change in the polarity of the voltage applied to the liquid crystal molecules. During the TP1 perturbation process, the voltage input to the Row1 liquid crystal molecules can be perturbed by extending the duration of the low-level interval of TP1, thereby charging the pixels at Row1. During the TP2 perturbation process, the duration of the low-level interval of TP2 and the pulse width can be shortened to charge (e.g., ...). Figure 10 The voltage input to the liquid crystal molecules at Row2 is perturbed using a Short to VREF process to bring it closer to the reference potential VREF2, thereby charging the pixels at Row2. During the perturbation process at TP3, the duration of the low-level interval of TP3 can be adjusted and the pulse width of TP3 shortened to facilitate charging (e.g., ...). Figure 10 The voltage input to the liquid crystal molecules in Row 3 is perturbed using a Short to VREF process to charge the pixel at Row 3. During the perturbation process at TP4, the voltage input to the liquid crystal molecules in Row 4 can be perturbed by adjusting the duration of the low-level interval of TP4 to charge the pixel at Row 4. After the perturbation at TP4 ends, the liquid crystal molecules from Row 1 to Row 4 have completed polarity reversal. In this way, by extending the duration of the low-level interval of TP1 and shortening the duration of the low-level interval of TP2, the display brightness of Row1 and Row2 can be adjusted to make their display brightness similar. Then, by shortening the pulse width of TP2 and adjusting the duration of the low-level interval of TP3 and shortening the pulse width of TP3, the display brightness of Row2 and Row3 can be adjusted to make their display brightness similar. Finally, by adjusting the duration of the low-level interval of TP4, the display brightness of Row3 and Row4 can be adjusted to make their display brightness similar. This reduces driving power consumption while improving or even solving the bright and dark lines phenomenon when displaying white screens.

[0146] In one example, such as Figure 11 As shown, in the high-level range of the pulse signal TP0, charge sharing (such as...) can be achieved. Figure 11In the CS On process, the voltage input to the liquid crystal molecules (from Output a) is adjusted to the preset reference potential VREF1. Afterward, the voltage applied to the liquid crystal molecules is changed from being provided by Output a to being provided by Output b, ensuring a change in the polarity of the voltage applied to the liquid crystal molecules. During the TP1 perturbation process, the voltage input to the Row1 liquid crystal molecules can be perturbed by extending the duration of the low-level interval of TP1, thereby charging the pixels at Row1. During the TP2 perturbation process, the duration of the low-level interval of TP2 and the pulse width can be shortened, and charge sharing (e.g., ...) can be used. Figure 11 The voltage input to the liquid crystal molecules at Row2 is perturbed using a CS-On process to bring it closer to the reference potential VREF2, thereby charging the pixels at Row2. During the perturbation of TP3, the duration of the low-level interval of TP3 can be adjusted, the pulse width of TP3 can be shortened, and charge sharing (e.g., ...) can be used. Figure 11 The voltage input to the liquid crystal molecules in Row 3 is perturbed using a CS-On process to charge the pixel at Row 3. During the perturbation process at TP4, the voltage input to the liquid crystal molecules in Row 4 can be perturbed by adjusting the duration of the low-level interval of TP4 to charge the pixel at Row 4. After the perturbation at TP4 ends, the liquid crystal molecules from Row 1 to Row 4 have completed polarity reversal. In this way, by extending the duration of the low-level interval of TP1 and shortening the duration of the low-level interval of TP2, the display brightness of Row1 and Row2 can be adjusted to make their display brightness similar. Then, by shortening the pulse width of TP2 and adjusting the duration of the low-level interval of TP3 and shortening the pulse width of TP3, the display brightness of Row2 and Row3 can be adjusted to make their display brightness similar. Finally, by adjusting the duration of the low-level interval of TP4, the display brightness of Row3 and Row4 can be adjusted to make their display brightness similar. This reduces driving power consumption while improving or even solving the bright and dark lines phenomenon when displaying white screens.

[0147] When N takes the value n (n is any integer greater than 4), the second pulse signal to the (N-1)th pulse signal (the second pulse signal, the second pulse signal, ..., the (n-1)th pulse signal) can be used as the controlled pulse signal.

[0148] Similarly, for the 4-line inversion described above, for the first driving signal G1 under n-line inversion (G1 includes the first pulse signal TP1, the second pulse signal TP2, ..., a total of n pulse signals), we can obtain the following: In G1, the pulse widths of TP2, TP3, TP4, ... are shortened; the low-level interval of TP2 is shortened; the low-level interval of TP1 is lengthened; and the pulse widths of TP3, TP4, ... are adjusted. n The duration of the low-level interval.

[0149] Figure 12 The diagram shows a timing diagram of the driver when performing an n-line inversion based on a display driver method according to an embodiment of the present disclosure. Figure 13 This diagram illustrates the driving timing diagram for n-line inversion based on a display driving method provided in an embodiment of this disclosure. Figure 12 , Figure 13 As shown above, the same principle applies. Figure 6 , Figure 7 The correspondence is as follows: ①②……⑦ correspond to the voltage states applied to the liquid crystal molecules of Row1, Row2……Row7, respectively, which will not be elaborated here.

[0150] In one example, such as Figure 12 As shown, in the high-level range of the pulse signal TP0, charge sharing (such as...) can be achieved. Figure 12 In the CS On process, the voltage input to the liquid crystal molecules (from Output a) is adjusted to a preset reference potential VREF1. Afterward, the voltage applied to the liquid crystal molecules is changed from being provided by Output a to being provided by Output b, ensuring a change in the polarity of the voltage applied to the liquid crystal molecules. During the TP1 perturbation process, the voltage input to the Row1 liquid crystal molecules can be perturbed by extending the duration of the low-level interval of TP1, thereby charging the pixels at Row1. During the TP2 perturbation process, the duration of the low-level interval of TP2 and the pulse width can be shortened to charge (e.g., ...). Figure 12 The voltage input to the liquid crystal molecules at Row2 is perturbed using a Short to VREF process to bring it closer to the reference potential VREF2, thereby charging the pixels at Row2. During the perturbation process at TP3, the duration of the low-level interval of TP3 can be adjusted and the pulse width of TP3 shortened to facilitate charging (e.g., ...). Figure 12 The voltage input to the Row3 liquid crystal molecules is perturbed using a Short to VREF process to charge the pixels at Row3. TP4, TP5...TP n-1The perturbation process is similar to that of TP3, and so on. In TP... n During the disturbance process, TP can be adjusted. n The voltage input to the Row liquid crystal molecules is disturbed by varying the duration of the low-level interval, thereby charging the pixels at the Row. In TP n After the disturbance ends, the liquid crystal molecules at Row1 to Row2 complete polarity reversal. Therefore, by extending the duration of the low-level interval of TP1 and shortening the duration of the low-level interval of TP2, the display brightness of Row1 and Row2 can be adjusted to make their display brightness similar. Then, by shortening the pulse width of TP2 and adjusting the duration of the low-level interval of TP3 while shortening the pulse width of TP3, the display brightness of Row2 and Row3 can be adjusted to make their display brightness similar, and so on, until the polarity of TP1 is adjusted to make its low-level interval similar. n The duration of the low-level interval can be adjusted to change the display brightness of Row(n-1) and Row, making their display brightness similar. This reduces driving power consumption while improving or even solving the bright and dark lines phenomenon when displaying white screens.

[0151] In one example, such as Figure 13 As shown, in the high-level range of the pulse signal TP0, charge sharing (such as...) can be achieved. Figure 13 In the CS On process, the voltage input to the liquid crystal molecules (from Output a) is adjusted to a preset reference potential VREF1. Afterward, the voltage applied to the liquid crystal molecules is changed from being provided by Output a to being provided by Output b, ensuring a change in the polarity of the voltage applied to the liquid crystal molecules. During the TP1 perturbation process, the voltage input to the Row1 liquid crystal molecules can be perturbed by extending the duration of the low-level interval of TP1, thereby charging the pixels at Row1. During the TP2 perturbation process, the duration of the low-level interval of TP2 and the pulse width can be shortened to charge (e.g., ...). Figure 13 The voltage input to the liquid crystal molecules at Row2 is perturbed using a CS-On process (as described in the original text) to bring it closer to the reference potential VREF2, thereby charging the pixels at Row2. During the perturbation of TP3, the duration of the low-level interval of TP3 can be adjusted, and the pulse width of TP3 can be shortened to facilitate charging (e.g., ...). Figure 13 The voltage input to the Row3 liquid crystal molecules is perturbed using the CS-On process to charge the pixels at Row3. TP4, TP5...TP n-1 The perturbation process is similar to that of TP3, and so on. In TP... n During the disturbance process, TP can be adjusted.n The voltage input to the Row liquid crystal molecules is disturbed by varying the duration of the low-level interval, thereby charging the pixels at the Row. In TP n After the disturbance ends, the liquid crystal molecules at Row1 to Row2 complete polarity reversal. Therefore, by extending the duration of the low-level interval of TP1 and shortening the duration of the low-level interval of TP2, the display brightness of Row1 and Row2 can be adjusted to make their display brightness similar. Then, by shortening the pulse width of TP2 and adjusting the duration of the low-level interval of TP3 while shortening the pulse width of TP3, the display brightness of Row2 and Row3 can be adjusted to make their display brightness similar, and so on, until the polarity of TP1 is adjusted to make its low-level interval similar. n The duration of the low-level interval can be adjusted to change the display brightness of Row(n-1) and Row, making their display brightness similar. This reduces driving power consumption while improving or even solving the bright and dark lines phenomenon when displaying white screens.

[0152] Thus, when at least one controlled pulse signal may include the second to the (N-1)th pulse signals, based on the perturbation process of each of the n pulse signals under n-line inversion, while making the display brightness of the 2i-th row and the display brightness of the 2i+1-th row tend to be consistent, it is possible to make the display brightness of the 2i+1-th row and the display brightness of the 2i+2-th row tend to be consistent, thereby improving or even solving the bright and dark lines phenomenon when displaying white screen while reducing driving power consumption.

[0153] In one possible implementation, at least one controlled pulse signal may include a first pulse signal to an (N-1)th pulse signal. The pulse width of the at least one controlled pulse signal is controlled by one or more control signals. The pulse width of the at least one controlled pulse signal comes from a second width set. The pulse width of the pulse signals other than the controlled pulse signals is a fourth width. The second width set includes N-1 width values ​​{PW1, ..., PW...} N-1}, PW1 represents the pulse width of the first pulse signal, PW N-1 This represents the pulse width of the (N-1)th pulse signal. The (N-1)th width values ​​in the second width set are not exactly the same as the fourth width. Furthermore, the (N-1)th width values ​​in the second width set can all be smaller than the fourth width.

[0154] In cases where at least one controlled pulse signal may include the first to the (N-1)th pulse signals, adjusting the voltage input to the liquid crystal molecule to a preset reference potential during the high-level interval of each controlled pulse signal may include: adjusting the voltage input to the liquid crystal molecule to a preset reference potential through charge sharing or charging during the high-level interval of each controlled pulse signal.

[0155] In cases where at least one controlled pulse signal may include pulse signals from the first pulse signal to the (N-1)th pulse signal, the duration of the low-level interval of the pulse signals other than the first pulse signal in the at least one controlled pulse signal is derived from a second length set, the duration of the low-level interval of the first pulse signal being the second length, wherein the second length set includes N-2 length values, and any length value in the second length set is less than the second length.

[0156] When N is 4, the first to the (N-1)th pulse signals (i.e., the first, second, and third pulse signals) can be used as the controlled pulse signals.

[0157] The following is a schematic illustration based on the first drive signal G1 (G1 includes the first pulse signal TP1, the second pulse signal TP2, the third pulse signal TP3, and the fourth pulse signal TP4) under the above 4-line inversion:

[0158] The first pulse signal TP1 is a controlled pulse signal used to perturb the voltage of the liquid crystal molecules input to Row 1. The duration of the high-level interval (i.e., pulse width) of the controlled pulse signal TP1 is derived from PW1 in the second width set, and the duration of the low-level interval is derived from the second length PW1'. The second pulse signal TP2 is also a controlled pulse signal used to perturb the voltage of the liquid crystal molecules input to Row 2. The duration of the high-level interval (i.e., pulse width) of the controlled pulse signal TP2 is derived from PW2 in the second width set, and the duration of the low-level interval is derived from PW2' in the second length set. The third pulse signal TP3 is also a controlled pulse signal used to perturb the voltage of the liquid crystal molecules input to Row 3. The duration of the high-level interval (i.e., pulse width) of TP3 is derived from PW3 in the second width set, and the duration of the low-level interval is derived from PW3' in the second length set. TP4 is used to perturb the voltage of the liquid crystal molecules input to Row4. The duration of the high-level interval of TP4 (i.e., the pulse width) is the fourth width PW4, and the duration of the low-level interval is the sixth length PW4'.

[0159] The pulse widths PW1, PW2, and PW3 in the first width set can all be smaller than the fourth width PW4, which can be understood as shortening the pulse widths of TP1, TP2, and TP3 in G1; the pulse widths PW2' and PW3' in the first length set can all be smaller than the second length PW1', which can be understood as extending the low-level interval of TP1 and shortening the low-level interval of TP2 in G1; PW3' can be adjusted according to PW2 and PW2', which can be understood as adjusting the low-level interval of TP3 in G1; the sixth length PW4' can be adjusted according to PW3 and PW3', which can be understood as adjusting the low-level interval of TP4 in G1. PW1, PW2, and PW3 can be the same or different, and PW2' and PW3' can be the same or different. In fact, the pulse width and low-level interval duration of each pulse signal can be flexibly set according to personal preference and / or actual application scenario, and this embodiment does not limit this.

[0160] Figure 14 The diagram shows a timing diagram of a 4-line inversion based on a display driver method provided in an embodiment of the present disclosure. Figure 15 This diagram illustrates a driver timing diagram for 4-line inversion based on a display driver method provided in an embodiment of this disclosure. Figure 14 , Figure 15 As shown above, the same principle applies. Figure 6 , Figure 7 The correspondence is as follows: ①②③④ correspond one-to-one with the voltage states applied to the liquid crystal molecules of Row1, Row2, Row3, and Row4, respectively, which will not be elaborated here.

[0161] In one example, such as Figure 14 As shown, in the high-level range of the pulse signal TP0, charge sharing (such as...) can be achieved. Figure 14 The CS On process adjusts the voltage input to the liquid crystal molecules (from Output a) to a preset reference potential VREF1. Afterward, the voltage applied to the liquid crystal molecules is changed from being provided by Output a to being provided by Output b, ensuring a change in the polarity of the voltage applied to the liquid crystal molecules. During the perturbation of TP1, the duration of the low-level interval of TP1 can be extended and the pulse width of TP1 shortened, and charging (e.g., ...) can be used. Figure 14 The voltage input to the liquid crystal molecules at Row1 is perturbed using a Short to VREF process to charge the pixels at Row1. During the perturbation of TP2, the duration and pulse width of the low-level interval of TP2 can be shortened, and charging (e.g., ...) can be used to... Figure 14The voltage input to the liquid crystal molecules at Row2 is perturbed using a Short to VREF process to bring it closer to the reference potential VREF2, thereby charging the pixels at Row2. During the perturbation process at TP3, the duration of the low-level interval of TP3 can be adjusted and the pulse width of TP3 shortened to facilitate charging (e.g., ...). Figure 14 The voltage input to the liquid crystal molecules in Row 3 is perturbed using a Short to VREF process to charge the pixel at Row 3. During the perturbation process at TP4, the voltage input to the liquid crystal molecules in Row 4 can be perturbed by adjusting the duration of the low-level interval of TP4 to charge the pixel at Row 4. After the perturbation at TP4 ends, the liquid crystal molecules from Row 1 to Row 4 have completed polarity reversal. In this way, by extending the duration of the low-level interval of TP1 and shortening the pulse width of TP1 and the duration of the low-level interval of TP2, the display brightness of Row1 and Row2 can be adjusted to be similar. Then, by shortening the pulse width of TP2 and adjusting the duration of the low-level interval of TP3 and shortening the pulse width of TP3, the display brightness of Row2 and Row3 can be adjusted to be similar. Finally, by adjusting the duration of the low-level interval of TP4, the display brightness of Row3 and Row4 can be adjusted to be similar. This reduces driving power consumption while improving or even solving the bright and dark lines phenomenon when displaying white screens.

[0162] In one example, such as Figure 15 As shown, in the high-level range of the pulse signal TP0, charge sharing (such as...) can be achieved. Figure 15 The CS On process adjusts the voltage input to the liquid crystal molecules (from Output a) to a preset reference potential VREF1. Afterward, the voltage applied to the liquid crystal molecules is changed from being provided by Output a to being provided by Output b, ensuring a change in the polarity of the voltage applied to the liquid crystal molecules. During the perturbation of TP1, the duration of the low-level interval of TP1 can be extended and the pulse width of TP1 shortened, and charging (e.g., ...) can be used. Figure 15 The voltage input to the liquid crystal molecules at Row1 is perturbed using a CS-On process to charge the pixels at Row1. During the perturbation of TP2, the duration and pulse width of the low-level interval of TP2 can be shortened, and charging (e.g., ...) can be used to... Figure 15The voltage input to the liquid crystal molecules at Row2 is perturbed using a CS-On process (as described in the original text) to bring it closer to the reference potential VREF2, thereby charging the pixels at Row2. During the perturbation of TP3, the duration of the low-level interval of TP3 can be adjusted, and the pulse width of TP3 can be shortened to facilitate charging (e.g., ...). Figure 15 The voltage input to the liquid crystal molecules in Row 3 is perturbed using a CS-On process to charge the pixel at Row 3. During the perturbation process at TP4, the voltage input to the liquid crystal molecules in Row 4 can be perturbed by adjusting the duration of the low-level interval of TP4 to charge the pixel at Row 4. After the perturbation at TP4 ends, the liquid crystal molecules from Row 1 to Row 4 have completed polarity reversal. In this way, by extending the duration of the low-level interval of TP1 and shortening the pulse width of TP1 and the duration of the low-level interval of TP2, the display brightness of Row1 and Row2 can be adjusted to be similar. Then, by shortening the pulse width of TP2 and adjusting the duration of the low-level interval of TP3 and shortening the pulse width of TP3, the display brightness of Row2 and Row3 can be adjusted to be similar. Finally, by adjusting the duration of the low-level interval of TP4, the display brightness of Row3 and Row4 can be adjusted to be similar. This reduces driving power consumption while improving or even solving the bright and dark lines phenomenon when displaying white screens.

[0163] When N takes the value n (n is any integer greater than 4), the first pulse signal to the (N-1)th pulse signal (the second pulse signal, the second pulse signal, ..., the (n-1)th pulse signal) can be used as the controlled pulse signal.

[0164] Similarly, for the 4-line inversion described above, for the first driving signal G1 under n-line inversion (G1 includes the first pulse signal TP1, the second pulse signal TP2, ..., a total of n pulse signals), we can obtain the following: In G1, the pulse widths of TP1, TP2, TP3, TP4, ... are shortened; the low-level interval of TP1 is extended; the low-level interval duration of TP2 is shortened; and the pulse widths of TP3, TP4, ... are adjusted. n The duration of the low-level interval.

[0165] Figure 16 The diagram shows a timing diagram of the driver when performing an n-line inversion based on a display driver method according to an embodiment of the present disclosure. Figure 13This diagram illustrates the driving timing diagram for n-line inversion based on a display driving method provided in an embodiment of this disclosure. Figure 16 , Figure 13 As shown above, the same principle applies. Figure 6 , Figure 7 The correspondence is as follows: ①②……⑦ correspond to the voltage states applied to the liquid crystal molecules of Row1, Row2……Row7, respectively, which will not be elaborated here.

[0166] In one example, such as Figure 16 As shown, in the high-level range of the pulse signal TP0, charge sharing (such as...) can be achieved. Figure 16 The CS On process adjusts the voltage input to the liquid crystal molecules (from Output a) to a preset reference potential VREF1. Afterward, the voltage applied to the liquid crystal molecules is changed from being provided by Output a to being provided by Output b, ensuring a change in the polarity of the voltage applied to the liquid crystal molecules. During the perturbation of TP1, the duration of the low-level interval of TP1 can be extended and the pulse width of TP1 shortened, and charging (e.g., ...) can be used. Figure 16 The voltage input to the liquid crystal molecules at Row1 is perturbed using a Short to VREF process to charge the pixels at Row1. During the perturbation of TP2, the duration and pulse width of the low-level interval of TP2 can be shortened, and charging (e.g., ...) can be used to... Figure 16 The voltage input to the liquid crystal molecules at Row2 is perturbed using a Short to VREF process to bring it closer to the reference potential VREF2, thereby charging the pixels at Row2. During the perturbation process at TP3, the duration of the low-level interval of TP3 can be adjusted and the pulse width of TP3 shortened to facilitate charging (e.g., ...). Figure 16 The voltage input to the Row3 liquid crystal molecules is perturbed using a Short to VREF process to charge the pixels at Row3. TP4, TP5...TP n-1 The perturbation process is similar to that of TP3, and so on. In TP... n During the disturbance process, TP can be adjusted. n The voltage input to the Row liquid crystal molecules is disturbed by varying the duration of the low-level interval, thereby charging the pixels at the Row. In TP nAfter the disturbance ends, the liquid crystal molecules at Row1 to Row2 complete polarity reversal. Therefore, by extending the duration of the low-level interval of TP1 and shortening the pulse width of TP1 and the duration of the low-level interval of TP2, the display brightness of Row1 and Row2 can be adjusted to make their brightness similar. Then, by shortening the pulse width of TP2 and adjusting the duration of the low-level interval of TP3 and shortening the pulse width of TP3, the display brightness of Row2 and Row3 can be adjusted to make their brightness similar, and so on, until the brightness of TP1 and Row2 is adjusted to make their brightness similar. n The duration of the low-level interval can be adjusted to change the display brightness of Row(n-1) and Row, making their display brightness similar. This reduces driving power consumption while improving or even solving the bright and dark lines phenomenon when displaying white screens.

[0167] In one example, such as Figure 17 As shown, in the high-level range of the pulse signal TP0, charge sharing (such as...) can be achieved. Figure 17 The CS On process adjusts the voltage input to the liquid crystal molecules (from Output a) to a preset reference potential VREF1. Afterward, the voltage applied to the liquid crystal molecules is changed from being provided by Output a to being provided by Output b, ensuring a change in the polarity of the voltage applied to the liquid crystal molecules. During the perturbation of TP1, the duration of the low-level interval of TP1 can be extended, the pulse width of TP1 can be shortened, and charge sharing (e.g.) can be used. Figure 17 The voltage input to the liquid crystal molecules at Row1 is perturbed using a CS-On process to charge the pixels at Row1. During the perturbation of TP2, the duration and pulse width of the low-level interval of TP2 can be shortened, and charge sharing (e.g., ...) can be used to charge the pixels at Row1. Figure 17 The voltage input to the liquid crystal molecules at Row2 is perturbed using a CS-On process to bring it closer to the reference potential VREF2, thereby charging the pixels at Row2. During the perturbation of TP3, the duration of the low-level interval of TP3 can be adjusted, the pulse width of TP3 can be shortened, and charge sharing (e.g., ...) can be used. Figure 17 The voltage input to the Row3 liquid crystal molecules is perturbed using the CS-On process to charge the pixels at Row3. TP4, TP5...TP n-1 The perturbation process is similar to that of TP3, and so on. In TP... n During the disturbance process, TP can be adjusted. n The voltage input to the Row liquid crystal molecules is disturbed by varying the duration of the low-level interval, thereby charging the pixels at the Row. In TPn After the disturbance ends, the liquid crystal molecules at Row1 to Row2 complete polarity reversal. Therefore, by extending the duration of the low-level interval of TP1 and shortening the pulse width of TP1 and the duration of the low-level interval of TP2, the display brightness of Row1 and Row2 can be adjusted to make their brightness similar. Then, by shortening the pulse width of TP2 and adjusting the duration of the low-level interval of TP3 and shortening the pulse width of TP3, the display brightness of Row2 and Row3 can be adjusted to make their brightness similar, and so on, until the brightness of TP1 and Row2 is adjusted to make their brightness similar. n The duration of the low-level interval can be adjusted to change the display brightness of Row(n-1) and Row, making their display brightness similar. This reduces driving power consumption while improving or even solving the bright and dark lines phenomenon when displaying white screens.

[0168] Thus, when at least one controlled pulse signal may include the first to the (N-1)th pulse signals, based on the perturbation process of each of the n pulse signals under n-line inversion, on the basis of making the display brightness of the 2i-th row consistent with the display brightness of the 2i+1-th row and the display brightness of the 2i+1-th row consistent with the display brightness of the 2i+2-th row, the display brightness of the 1st row can be further made consistent with the display brightness of the 2nd row, thereby improving or even solving the bright and dark lines phenomenon when displaying a white screen while reducing driving power consumption.

[0169] Furthermore, the meanings of the first length, second length, first width, second width, etc. in the above examples are determined according to the specific context. The same symbol may represent different values ​​in different implementations. This disclosure does not limit the scope of protection in this way.

[0170] This disclosure provides a touch event recognition device for display driver chips. Figure 18 A block diagram of a display driving device provided according to an embodiment of the present disclosure is shown. Figure 18 As shown, the device 1800 includes:

[0171] Acquisition module 1801 is configured to acquire drive signals. The drive signals include multiple sets of first drive signals. The voltage polarities of adjacent sets of first drive signals are opposite, and the voltage polarities of the same set of first drive signals are the same. Each set of first drive signals includes N pulse signals, where N is an integer greater than 3, and there are at least two pulse signals with different pulse widths among the N pulse signals.

[0172] The charging module 1802 is configured to, for any set of the first driving signals, perturb the voltage input to the liquid crystal molecules based on the set of the first driving signals, and charge the N rows of liquid crystal molecules corresponding to the set of the first driving signals according to the perturbed voltage, so that the brightness of the N rows of pixels corresponding to the N rows of liquid crystal molecules tends to be consistent.

[0173] In this way, by perturbing the voltage applied to the liquid crystal molecules with pulse signals of at least two pulse widths, and charging the liquid crystal molecules with the same polarity of the perturbed voltage, it is possible to improve or even solve the phenomenon of bright and dark lines when displaying white images while reducing driving power consumption.

[0174] In one possible implementation, the N pulse signals include at least one controlled pulse signal; the perturbation of the voltage input to the liquid crystal molecules based on the first driving signal includes: adjusting the voltage input to the liquid crystal molecules to a preset reference potential during the high-level interval of each controlled pulse signal.

[0175] In this way, adjusting the voltage input to the liquid crystal molecules during the high-level interval of each controlled pulse signal helps reduce driving power consumption and improve the bright and dark lines phenomenon on white screens. Furthermore, the duration of the high-level interval of the controlled pulse signal can be adjusted in a timely manner according to actual display requirements (such as upper power consumption limit and lower brightness limit), making it more flexible.

[0176] In one possible implementation, each group of the first drive signals includes N pulse signals TP. i , i = 1, 2, ..., N, the TP i Let represent the i-th pulse signal; the step of charging the N rows of liquid crystal molecules corresponding to the first driving signal according to the perturbed voltage includes: traversing i sequentially in ascending order and using the i-th pulse signal TP. i The corresponding perturbation voltage charges the liquid crystal molecules in the i-th row.

[0177] In this way, the voltage of the i-th pulse signal TPi in the first driving signal is disturbed sequentially and input to the i-th row of liquid crystal molecules. Under the action of the voltage after such disturbance, the brightness of the N rows of pixels corresponding to the N rows of liquid crystal molecules tends to be consistent.

[0178] In one possible implementation, the at least one controlled pulse signal includes the 2*nth pulse signal from the 2nd pulse signal to the (N-1)th pulse signal, where n takes any integer satisfying 1 ≤ n ≤ N / 2. The pulse width of the at least one controlled pulse signal is controlled by one or more control signals. The pulse width of the 2*nth pulse signal is a first width, and the pulse width of any pulse signal other than the controlled pulse signal is a second width. The first width is less than the second width. Adjusting the voltage input to the liquid crystal molecule to a preset reference potential during the high-level interval of each controlled pulse signal includes: adjusting the voltage input to the liquid crystal molecule to the preset reference potential through charge sharing or charging during the high-level interval of each controlled pulse signal.

[0179] Thus, when at least one controlled pulse signal includes the 2*nth pulse signal from the 2nd pulse signal to the (N-1)th pulse signal, based on the perturbation process of each of the n pulse signals under n-line inversion, the display brightness of the 2ith row can be made to be consistent with the display brightness of the 2i+1th row, thereby improving or even solving the bright and dark pattern phenomenon when displaying a white screen while reducing driving power consumption.

[0180] In one possible implementation, the duration of the low-level interval of any one of the controlled pulse signals is a first length, and the duration of the low-level interval of the first pulse signal is a second length, wherein the first length is less than the second length.

[0181] In this way, the duration of the low-level interval of the controlled pulse signal can be adjusted in a timely manner according to actual display requirements (such as upper limit of power consumption and lower limit of brightness), which is more flexible.

[0182] In one possible implementation, the at least one controlled pulse signal includes a second pulse signal to an (N-1)th pulse signal, the pulse width of the at least one controlled pulse signal is controlled by one or more control signals, the pulse width of the at least one controlled pulse signal comes from a first width set, and the pulse width of the pulse signals other than the controlled pulse signal is a third width, wherein the first width set includes N-2 width values ​​{PW2, ..., PW...} N-1}, where PW2 represents the pulse width of the second pulse signal, and PW N-1The pulse width of the (N-1)th pulse signal is indicated, and the N-1 width values ​​in the first width set are not exactly the same as the third width; adjusting the voltage input to the liquid crystal molecule to a preset reference potential in the high-level interval of each controlled pulse signal includes: adjusting the voltage input to the liquid crystal molecule to the preset reference potential through charge sharing or charging in the high-level interval of each controlled pulse signal.

[0183] Thus, when at least one controlled pulse signal may include the second to the (N-1)th pulse signals, based on the perturbation process of each of the n pulse signals under n-line inversion, while making the display brightness of the 2i-th row and the display brightness of the 2i+1-th row tend to be consistent, it is possible to make the display brightness of the 2i+1-th row and the display brightness of the 2i+2-th row tend to be consistent, thereby improving or even solving the bright and dark lines phenomenon when displaying white screen while reducing driving power consumption.

[0184] In one possible implementation, the duration of the low-level interval of the at least one controlled pulse signal comes from a first length set, and the duration of the low-level interval of the first pulse signal is a second length, wherein the first width set includes N-2 length values, and any length value in the first length set is less than the second length.

[0185] In this way, the duration of the low-level interval of the controlled pulse signal can be adjusted in a timely manner according to actual display requirements (such as upper limit of power consumption and lower limit of brightness), which is more flexible.

[0186] In one possible implementation, the at least one controlled pulse signal includes a first pulse signal to an (N-1)th pulse signal, the pulse width of the at least one controlled pulse signal is controlled by one or more control signals, the pulse width of the at least one controlled pulse signal comes from a second width set, and the pulse width of the pulse signals other than the controlled pulse signal is a fourth width, wherein the second width set includes N-1 width values ​​{PW1, ..., PW...} N-1}, where PW1 represents the pulse width of the first pulse signal, and PW N-1 The pulse width of the (N-1)th pulse signal is indicated, and the N-1 width values ​​in the second width set are not exactly the same as the fourth width; adjusting the voltage input to the liquid crystal molecule to a preset reference potential in the high-level interval of each controlled pulse signal includes: adjusting the voltage input to the liquid crystal molecule to the preset reference potential through charge sharing or charging in the high-level interval of each controlled pulse signal.

[0187] Thus, when at least one controlled pulse signal may include the first to the (N-1)th pulse signals, based on the perturbation process of each of the n pulse signals under n-line inversion, on the basis of making the display brightness of the 2i-th row consistent with the display brightness of the 2i+1-th row and the display brightness of the 2i+1-th row consistent with the display brightness of the 2i+2-th row, the display brightness of the 1st row can be further made consistent with the display brightness of the 2nd row, thereby improving or even solving the bright and dark lines phenomenon when displaying a white screen while reducing driving power consumption.

[0188] In one possible implementation, the duration of the low-level interval of the at least one controlled pulse signal other than the first pulse signal is derived from a second length set, wherein the duration of the low-level interval of the first pulse signal is the second length, and the second length set includes N-2 length values, and any length value in the second length set is less than the second length.

[0189] In this way, the duration of the low-level interval of the controlled pulse signal can be adjusted in a timely manner according to actual display requirements (such as upper limit of power consumption and lower limit of brightness), which is more flexible.

[0190] In one possible implementation, the voltage input to the liquid crystal molecules is alternately provided by a positive polarity amplifier and a negative polarity amplifier, such that the polarities of the voltages corresponding to two adjacent sets of the first driving signals are opposite.

[0191] In this way, by alternately providing the voltage of the first drive signal disturbance by the positive and negative polarity amplifiers, it can be ensured that the polarity of the voltage of the disturbance corresponding to the two adjacent sets of first drive signals is opposite, which is convenient and easy to control.

[0192] In some embodiments, the display driver device provided in this disclosure may have functions or include modules that can be used to execute the methods described in the above display driver method embodiments. The specific implementation can be referred to the above display driver method embodiments, and for the sake of brevity, it will not be repeated here.

[0193] According to another aspect of this disclosure, a chip is provided that includes the above-described display driver.

[0194] In some embodiments, the functions or modules of the chip provided in this disclosure can be used to execute the methods described in the above display driver method embodiments. The specific implementation can be referred to the description of the above display driver method embodiments, which will not be repeated here for the sake of brevity.

[0195] According to another aspect of this disclosure, a display device is provided, the display device including a plurality of display units and at least one of the above-described display driving devices.

[0196] In one possible implementation, the display unit includes a display panel, which includes at least one of a liquid crystal display panel, a micro light-emitting diode display panel, a light-emitting diode display panel, a mini light-emitting diode display panel, a quantum dot light-emitting diode display panel, an organic light-emitting diode display panel, a cathode ray tube display panel, a digital light processing display panel, a field emission display panel, a plasma display panel, an electrophoretic display panel, an electrowetting display panel, and a small-pitch display panel.

[0197] In some embodiments, the display device provided in this disclosure may have functions or include modules that can be used to execute the methods described in the above display driving method embodiments. The specific implementation can be referred to the above description of the display driving method embodiments, and for the sake of brevity, it will not be repeated here.

[0198] According to another aspect of this disclosure, an electronic device is provided, the electronic device including the display device described above.

[0199] In some embodiments, the display device provided in this disclosure may have functions or include modules that can be used to execute the methods described in the above display driving method embodiments. The specific implementation can be referred to the above description of the display driving method embodiments, and for the sake of brevity, it will not be repeated here.

[0200] According to another aspect of this disclosure, an electronic device is provided, the electronic device comprising: a processor; a memory for storing processor-executable instructions; wherein the processor is configured to implement the above-described display driving method when executing the instructions stored in the memory.

[0201] In some embodiments, the electronic device provided in this disclosure may have functions or include modules that can be used to execute the methods described in the above display driver method embodiments. The specific implementation can be referred to the above description of the display driver method embodiments, and for the sake of brevity, it will not be repeated here.

[0202] According to another aspect of this disclosure, a non-volatile computer-readable storage medium is provided, on which computer program instructions are stored, which, when executed by a processor, implement the above-described display driving method.

[0203] In some embodiments, the functions or modules of the non-volatile computer-readable storage medium provided in this disclosure can be used to perform the methods described in the above display driver method embodiments. The specific implementation can be referred to the description of the above display driver method embodiments, and for the sake of brevity, it will not be repeated here.

[0204] For example, the electronic devices in this embodiment include, but are not limited to, desktop computers, televisions, mobile devices with large screens such as mobile phones and tablets, and other common electronic devices that require multiple chips to be cascaded together to achieve driving.

[0205] For example, electronic devices can also be user equipment (UE), mobile devices, user terminals, terminals, handheld devices, computing devices, or in-vehicle devices, etc. Examples of terminals include: displays, smartphones or portable devices, mobile phones, tablets, laptops, PDAs, mobile internet devices (MIDs), wearable devices, virtual reality (VR) devices, augmented reality (AR) devices, wireless terminals in industrial control, wireless terminals in self-driving, wireless terminals in remote medical surgery, wireless terminals in smart grids, wireless terminals in transportation safety, wireless terminals in smart cities, wireless terminals in smart homes, and wireless terminals in vehicle-to-everything (V2X) networks, etc. For example, a server can be a local server or a cloud server.

[0206] Figure 19 A block diagram of an electronic device according to an embodiment of the present disclosure is shown. For example, electronic device 1900 may be provided as a server or terminal device. (Refer to...) Figure 19 The electronic device 1900 includes a processing component 1922, which further includes one or more processors, and memory resources represented by memory 1932 for storing instructions, such as application programs, that can be executed by the processing component 1922. The application programs stored in memory 1932 may include one or more modules, each corresponding to a set of instructions. Furthermore, the processing component 1922 is configured to execute instructions to perform the methods described above.

[0207] Electronic device 1900 may also include a power supply component 1926 configured to perform power management of electronic device 1900, a wired or wireless network interface 1950 configured to connect electronic device 1900 to a network, and an input / output (I / O) interface 1958. Electronic device 1900 can operate on an operating system stored in memory 1932, such as Windows Server™, Mac OS X™, Unix™, Linux™, FreeBSD™, or similar.

[0208] In an exemplary embodiment, a non-volatile computer-readable storage medium is also provided, such as a memory 1932 including computer program instructions that can be executed by a processing component 1922 of an electronic device 1900 to perform the above-described method.

[0209] The above description is merely an exemplary embodiment of the present invention and is not intended to limit the scope of protection of the present invention, which is determined by the appended claims.

[0210] The term “exemplary” as used herein means “serving as an example, embodiment, or illustration.” Any embodiment illustrated herein as “exemplary” is not necessarily to be construed as superior to or better than other embodiments.

[0211] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0212] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to various embodiments of the present disclosure. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of an instruction containing one or more executable instructions for implementing a specified logical function. In some alternative implementations, the functions marked in the blocks may occur in a different order than those shown in the drawings. For example, two consecutive blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, may be implemented using a dedicated hardware-based system that performs the specified function or action, or using a combination of dedicated hardware and computer instructions.

[0213] The various embodiments of this disclosure have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A display driving method, characterized in that, The method is used for display driver chips, and the method includes: Acquire a driving signal, the driving signal including multiple sets of first driving signals, the voltage polarity of adjacent sets of first driving signals is opposite, the voltage polarity of the same set of first driving signals is the same, each set of first driving signals includes N pulse signals, N is an integer greater than 3, and there are at least two pulse signals with different pulse widths among the N pulse signals. For any set of the first driving signals, the voltage input to the liquid crystal molecules is perturbed based on the set of the first driving signals, and the N rows of liquid crystal molecules corresponding to the set of the first driving signals are charged according to the perturbed voltage, so that the brightness of the N rows of pixels corresponding to the N rows of liquid crystal molecules tends to be consistent. Among the N pulse signals, at least one is a controlled pulse signal, which represents a pulse signal whose pulse width and / or the duration of the low-level interval can be controlled; the perturbation of the voltage input to the liquid crystal molecules based on the first driving signal includes: adjusting the voltage input to the liquid crystal molecules to a preset reference potential during the high-level interval of each controlled pulse signal; Each group of the first driving signals includes N pulse signals TP. i , i=1, 2, ..., N, the TP i Let represent the i-th pulse signal; the step of charging the N rows of liquid crystal molecules corresponding to the first driving signal according to the perturbed voltage includes: traversing i sequentially in ascending order and using the i-th pulse signal TP. i The corresponding perturbation voltage charges the liquid crystal molecules in the i-th row.

2. The method according to claim 1, characterized in that, The at least one controlled pulse signal includes the 2*nth pulse signal from the 2nd pulse signal to the (N-1)th pulse signal, where n takes any integer satisfying 1≤n≤N / 2. The pulse width of the at least one controlled pulse signal is controlled by one or more control signals. The pulse width of the 2*nth pulse signal is a first width, and the pulse width of any pulse signal other than the controlled pulse signal is a second width. The first width is less than the second width. The step of adjusting the voltage input to the liquid crystal molecules to a preset reference potential during the high-level interval of each controlled pulse signal includes: During the high-level range of each controlled pulse signal, the voltage input to the liquid crystal molecules is adjusted to the preset reference potential through charge sharing or charging.

3. The method according to claim 2, characterized in that, The duration of the low-level interval of any one of the controlled pulse signals is the first length, and the duration of the low-level interval of the first pulse signal is the second length, wherein the first length is less than the second length.

4. The method according to claim 1, characterized in that, The at least one controlled pulse signal includes a second pulse signal to an (N-1)th pulse signal. The pulse width of the at least one controlled pulse signal is controlled by one or more control signals. The pulse width of the at least one controlled pulse signal comes from a first width set. The pulse width of the pulse signals other than the controlled pulse signals is a third width. The first width set includes N-2 width values ​​{PW2, ..., PW...} N-1 }, where PW2 represents the pulse width of the second pulse signal, and PW N-1 This represents the pulse width of the (N-1)th pulse signal, where the N-1 width values ​​in the first width set are not exactly the same as the third width; The step of adjusting the voltage input to the liquid crystal molecules to a preset reference potential during the high-level interval of each controlled pulse signal includes: During the high-level range of each controlled pulse signal, the voltage input to the liquid crystal molecules is adjusted to the preset reference potential through charge sharing or charging.

5. The method according to claim 4, characterized in that, The duration of the low-level interval of the at least one controlled pulse signal comes from a first length set, and the duration of the low-level interval of the first pulse signal is a second length. The first width set includes N-2 length values, and any length value in the first length set is less than the second length.

6. The method according to claim 1, characterized in that, The at least one controlled pulse signal includes a first pulse signal to an (N-1)th pulse signal. The pulse width of the at least one controlled pulse signal is controlled by one or more control signals. The pulse width of the at least one controlled pulse signal comes from a second width set. The pulse width of the pulse signals other than the controlled pulse signals is a fourth width. The second width set includes N-1 width values ​​{PW1, ..., PW...} N-1 }, where PW1 represents the pulse width of the first pulse signal, and PW N-1 This represents the pulse width of the (N-1)th pulse signal, and the N-1 width values ​​in the second width set are not exactly the same as the fourth width; The step of adjusting the voltage input to the liquid crystal molecules to a preset reference potential during the high-level interval of each controlled pulse signal includes: During the high-level range of each controlled pulse signal, the voltage input to the liquid crystal molecules is adjusted to the preset reference potential through charge sharing or charging.

7. The method according to claim 6, characterized in that, The duration of the low-level interval of the at least one controlled pulse signal other than the first pulse signal comes from a second length set. The duration of the low-level interval of the first pulse signal is the second length. The second length set includes N-2 length values, and any length value in the second length set is less than the second length.

8. The method according to claim 1, characterized in that, The voltage input to the liquid crystal molecules is alternately provided by a positive polarity amplifier and a negative polarity amplifier, such that the polarities of the voltages corresponding to two adjacent sets of the first driving signals are opposite.

9. A display driving device, characterized in that, The device is used to display a driver chip, and the device includes: The acquisition module is configured to acquire driving signals, the driving signals including multiple sets of first driving signals, the voltage polarities corresponding to two adjacent sets of first driving signals are opposite, the voltage polarities corresponding to the same set of first driving signals are the same, each set of first driving signals includes N pulse signals, where N is an integer greater than 3, and there are at least two pulse signals with different pulse widths among the N pulse signals. A charging module is configured to, for any set of first driving signals, perturb the voltage input to the liquid crystal molecules based on the set of first driving signals, and charge the N rows of liquid crystal molecules corresponding to the set of first driving signals according to the perturbed voltage, so that the brightness of the N rows of pixels corresponding to the N rows of liquid crystal molecules tends to be consistent. Among the N pulse signals, at least one is a controlled pulse signal, which represents a pulse signal whose pulse width and / or the duration of the low-level interval can be controlled; the perturbation of the voltage input to the liquid crystal molecules based on the first driving signal includes: adjusting the voltage input to the liquid crystal molecules to a preset reference potential during the high-level interval of each controlled pulse signal; Each group of the first driving signals includes N pulse signals TP. i , i=1, 2, ..., N, the TP i Let represent the i-th pulse signal; the step of charging the N rows of liquid crystal molecules corresponding to the first driving signal according to the perturbed voltage includes: traversing i sequentially in ascending order and using the i-th pulse signal TP. i The corresponding perturbation voltage charges the liquid crystal molecules in the i-th row.

10. A chip, characterized in that, The chip includes the display driver device as described in claim 9.

11. A display device, characterized in that, It includes multiple display units and at least one display driving device according to claim 9.

12. The display device according to claim 11, characterized in that, The display unit includes a display panel, which includes at least one of the following: liquid crystal display panel, micro light-emitting diode display panel, light-emitting diode display panel, mini light-emitting diode display panel, quantum dot light-emitting diode display panel, organic light-emitting diode display panel, cathode ray tube display panel, digital light processing display panel, field emission display panel, plasma display panel, electrophoretic display panel, electrowetting display panel, and small-pitch display panel.

13. An electronic device comprising the display device according to claim 11 or 12.

14. An electronic device, characterized in that, include: processor; Memory used to store processor-executable instructions; The processor is configured to implement the display driving method according to any one of claims 1 to 8 when executing instructions stored in the memory.

15. A non-volatile computer-readable storage medium storing computer program instructions thereon, characterized in that, When the computer program instructions are executed by the processor, they implement the display driving method according to any one of claims 1 to 8.

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