Pixel driving architecture, pixel driving method and display device
By designing sub-pixels of varying lengths in the display driver and adjusting the voltage difference between two scan lines and data lines, the problem of uneven brightness caused by parasitic capacitance differences was solved, thus improving brightness uniformity.
Patent Information
- Application Number
- CN202310947595.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-07-28
- Publication Date
- 2026-03-03
- Estimated Expiration
- 2043-07-28
AI Technical Summary
In display drivers, the different distances between adjacent pixels and data lines result in different parasitic capacitances, leading to inconsistent voltage levels and uneven brightness distribution.
The design employs long and short hand sub-pixels, connecting them via two scan lines and providing first and second data voltages through a data line. This ensures that the voltage difference equals a preset standard value, compensating for parasitic capacitance differences and guaranteeing consistent brightness.
It effectively reduces uneven distribution of light and dark areas by adjusting the voltage difference through a preset standard value to ensure consistent brightness of pixels of different lengths, thus improving display uniformity.
Smart Images

Figure CN116863858B_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the field of display technology, specifically relating to a pixel driving architecture, pixel driving method, and display device. Background Technology
[0002] In display drivers, adjacent pixels are grouped together and connected to the same data line. This reduces the number of data lines, the number of driver chips, and simplifies the circuit structure, lowering costs. However, this design can lead to differences in the distance between the two pixels and the data line, resulting in different parasitic capacitances and consequently, different voltages applied to the two pixels. This can cause uneven brightness distribution in the display. Summary of the Invention
[0003] The purpose of this application is to provide a pixel driving architecture, pixel driving method and display device that can reduce the difference in voltage caused by different distances, thereby reducing uneven brightness distribution.
[0004] Other features and advantages of this application will become apparent from the following detailed description, or may be learned in part from practice of this application.
[0005] According to one aspect of the embodiments of this application, this application provides a pixel driving architecture, the pixel driving architecture including a data line and a display unit, the display unit including a long hand sub-pixel and a short hand sub-pixel, the long hand sub-pixel and the short hand sub-pixel are disposed on the same side of the data line, and the long hand sub-pixel is disposed on the side of the short hand sub-pixel away from the data line, and both the long hand sub-pixel and the short hand sub-pixel are connected to the data line;
[0006] The pixel driving architecture also includes two scan lines, one scan line connected to the long hand sub-pixel and the other scan line connected to the short hand sub-pixel. The data line provides a first data voltage and a second data voltage. The two scan lines provide scan signals to the long hand sub-pixel and the short hand sub-pixel respectively, so that the first data voltage is applied to the long hand sub-pixel and the second data voltage is applied to the short hand sub-pixel respectively.
[0007] The voltage difference between the first data voltage and the second data voltage is equal to a preset standard value, so that the brightness of the long hand sub-pixel and the short hand sub-pixel is equal.
[0008] In one aspect, the display unit is provided in multiple ways, and the multiple display units are arranged sequentially in the row direction and the column direction;
[0009] Among them, the display units connected to the same data line have the same voltage polarity, and the display units on two adjacent data lines have opposite voltage polarities.
[0010] In one aspect, the two scan lines are a first scan line and a second scan line, with the long hand sub-pixel in each display unit connected to the first scan line and the short hand sub-pixel in each display unit connected to the second scan line.
[0011] In one aspect, the two scan lines are a first scan line and a second scan line, respectively, and in the row direction, two adjacent display units are a first display unit and a second display unit, respectively;
[0012] The short hand sub-pixel of the first display unit is connected to the first scan line, and the long hand sub-pixel of the first display unit is connected to the second scan line;
[0013] The short hand sub-pixel of the second display unit is connected to the second scan line, and the long hand sub-pixel of the second display unit is connected to the first scan line.
[0014] In one aspect, at least four display units are provided in the row direction, and the order in which the four display units are provided is as follows:
[0015] The first display unit, the second display unit, the first display unit and the second display unit;
[0016] Alternatively, the first display unit, the second display unit, the second display unit, and the first display unit;
[0017] Alternatively, the second display unit, the first display unit, the first display unit, and the second display unit.
[0018] In one aspect, the pixel driving architecture includes a data voltage driving module and a scan signal driving module;
[0019] The scanning signal driving module is connected to the two scanning lines respectively, and the scanning signal driving module provides scanning signals to the two scanning lines respectively;
[0020] The data voltage driving module is connected to the data line, and the data voltage driving module provides the first data voltage and the second data voltage to the data line.
[0021] The pixel driving architecture also includes a timing controller, which is connected to the data voltage driving module and the scan signal driving module respectively, so that when the scan signal driving module provides the scan signal, the data voltage driving module cooperates to provide the first data voltage and the second data voltage.
[0022] In addition, to solve the above problems, this application also provides a pixel driving method, which is applied to a pixel driving architecture. The pixel driving architecture includes a data line and a display unit. The display unit includes a long hand sub-pixel and a short hand sub-pixel. The long hand sub-pixel and the short hand sub-pixel are located on the same side of the data line, and the long hand sub-pixel is located on the side of the short hand sub-pixel away from the data line. Both the long hand sub-pixel and the short hand sub-pixel are connected to the data line.
[0023] The pixel driving architecture also includes two scan lines, one of which connects to the long hand sub-pixel and the other of which connects to the short hand sub-pixel;
[0024] The pixel driving method includes:
[0025] One of the scan lines is controlled to provide a scan signal to the long hand sub-pixel. The long hand sub-pixel responds to the scan signal of the scan line by controlling the data line to provide a first data voltage and applying the first data voltage to the long hand sub-pixel.
[0026] The other scan line is controlled to provide a scan signal to the short hand sub-pixel. The short hand sub-pixel responds to the scan signal of the other scan line by controlling the data line to provide a second data voltage and applying the second data voltage to the short hand sub-pixel.
[0027] The difference between the first data voltage and the second data voltage satisfies a preset standard value, so that the brightness of the long hand sub-pixel and the short hand sub-pixel is the same.
[0028] In one aspect, prior to the step of controlling one of the scan lines to provide a scan signal to the long hand sub-pixel, the method includes:
[0029] Obtain the parasitic capacitance of the long-hand sub-pixel and the parasitic capacitance of the short-hand sub-pixel, and determine a preset standard value based on the parasitic capacitance of the long-hand sub-pixel and the parasitic capacitance of the short-hand sub-pixel;
[0030] Based on the preset standard value, the first data voltage and the second data voltage are generated respectively.
[0031] In one aspect, after the steps of generating the first data voltage and the second data voltage respectively, the method includes:
[0032] Confirm the display time of a single frame;
[0033] Based on the display time of the frame, the provision time of the first data voltage and the second data voltage is divided into a first stage and a second stage, and the provision time of the first stage and the second stage are equal.
[0034] The step of applying the first data voltage to the long-handed sub-pixel includes:
[0035] In the first stage, the first data voltage is simultaneously provided to the long sub-pixels of the display unit of the same polarity;
[0036] The step of applying the second data voltage to the short hand sub-pixel includes:
[0037] In the second stage, the second data voltage is simultaneously provided to the short-handed sub-pixels of the display unit of the same polarity.
[0038] In addition, to solve the above problems, this application also provides a display device, which is provided with a power module and a pixel driving architecture as described above, wherein the pixel driving architecture is connected to the power module and the power module supplies power to the pixel driving architecture.
[0039] In this application, both the long-hand sub-pixel and the short-hand sub-pixel are connected to the same data line, with the short-hand sub-pixel closer to the data line and the long-hand sub-pixel farther away. The voltage signal provided by the data line includes a first data voltage and a second data voltage, which are provided to the long-hand and short-hand sub-pixels respectively through a scan line. Under the action of the scan signal, the long-hand and short-hand sub-pixels are turned on respectively. When the long-hand sub-pixel is turned on, the first data voltage is provided to it. When the short-hand sub-pixel is turned on, the second data voltage is provided to it. The voltage difference between the first data voltage and the second data voltage is equal to a preset standard value. The preset standard value compensates for the voltage difference caused by the different distances, reduces the influence caused by different parasitic capacitances, and ensures that the actual voltage acting on the long-hand and short-hand sub-pixels is the same, thus ensuring that the brightness of the long-hand and short-hand sub-pixels is the same and reducing uneven brightness distribution.
[0040] It should be understood in this application that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this application. Attached Figure Description
[0041] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. It is obvious that the drawings described below are merely some embodiments of this application, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.
[0042] Figure 1 The schematic diagram illustrates the structure of the pixel driving architecture in the first embodiment of this application.
[0043] Figure 2 This illustration shows another structural diagram of the pixel-driven architecture in the first embodiment of this application.
[0044] Figure 3 The illustration shows a first arrangement of the first display unit and the second display unit in this application.
[0045] Figure 4 This illustration shows a second arrangement of the first display unit and the second display unit in this application.
[0046] Figure 5 This illustration shows a third arrangement of the first and second display units in this application.
[0047] Figure 6 This application is illustrated schematically. Figure 1 Timing control diagram when the Dn+1 data line provides positive voltage in the mid-pixel driver architecture.
[0048] Figure 7 This application is illustrated schematically. Figure 1 Timing control diagram when the Dn+1 data line provides negative voltage in the mid-pixel driver architecture.
[0049] Figure 8 This application is illustrated schematically. Figure 2 Timing control diagram when the Dn+1 data line provides positive voltage in the mid-pixel driver architecture.
[0050] Figure 9 This application is illustrated schematically. Figure 2 Timing control diagram when the Dn+1 data line provides negative voltage in the mid-pixel driver architecture.
[0051] Figure 10 The schematic diagram illustrates the structure of the pixel driving architecture in the first embodiment of this application.
[0052] Figure 11 The schematic diagram illustrates the flow steps of the driving method in the second embodiment of this application.
[0053] Figure 12 The schematic diagram illustrates the process steps for generating the first data voltage and the second data voltage in the driving method of this application.
[0054] Figure 13 The schematic diagram illustrates the flow steps of providing data voltage to long-hand sub-pixels and short-hand sub-pixels in a time-division manner in the driving method of this application.
[0055] Figure 14 The schematic diagram illustrates the structure of the display device in the third embodiment of this application.
[0056] The annotations in the attached figures are explained as follows:
[0057] 10. Display unit; 20. Data voltage drive module; 30. Scan signal drive module; 40. Timing controller; 50. Power supply module; 60. Display device; 11. First display unit; 12. Second display unit;
[0058] 110, long hand subpixel; 120, short hand subpixel; 610, display area; 620, non-display area. Detailed Implementation
[0059] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided to make this application more comprehensive and complete, and to fully convey the concept of the exemplary embodiments to those skilled in the art.
[0060] Example 1
[0061] See Figure 1 and Figure 3 As shown, this application provides a pixel driving architecture, which includes a data line and a display unit 10. The display unit 10 includes a long sub-pixel 110 and a short sub-pixel 120, which are located on the same side of the data line, with the long sub-pixel 110 located on the side of the short sub-pixel 120 away from the data line. Both the long sub-pixel 110 and the short sub-pixel 120 are connected to the data line; wherein, the long sub-pixel 110 and the short sub-pixel 120 are arranged in the same row. By connecting both the long sub-pixel 110 and the short sub-pixel 120 to the same data line, a single data line can provide voltage signals to both sub-pixels, reducing the number of data lines. Typically, the long sub-pixel 110 and the short sub-pixel 120 within a display unit 10 display different colors. Generally, to ensure normal color display, the colors of the sub-pixels in the row direction are, in order: red, green, blue, red, green, blue. Red, green, and blue constitute one pixel unit.
[0062] The pixel driving architecture also includes two scan lines: one scan line connects to the long-hand sub-pixel 110, and the other scan line connects to the short-hand sub-pixel 120. Data lines provide a first data voltage and a second data voltage. The two scan lines provide scan signals to the long-hand sub-pixel 110 and the short-hand sub-pixel 120 respectively, so that the first data voltage is applied to the long-hand sub-pixel 110 and the second data voltage is applied to the short-hand sub-pixel 120 respectively. Through the cooperation of the two scan lines, the first data voltage can be accurately provided to the long-hand sub-pixel 110, and the second data voltage can be accurately provided to the short-hand sub-pixel 120. For example, when a scan signal is provided to the long-hand sub-pixel 110 through the scan line, the scan signal acts on the gate of the long-hand sub-pixel 110, turning it on. At this time, the first data voltage is provided to the long-hand sub-pixel 110 through the data line. When a scan signal is provided to the short hand sub-pixel 120 via another scan line, the scan signal acts on the gate of the short hand sub-pixel 120, and the short hand sub-pixel 120 is turned on. At this time, the second data voltage is provided to the short hand sub-pixel 120 via the data line.
[0063] It should be noted that, for the same display unit 10, since the first data voltage applies to the long sub-pixel 110 and the second data voltage applies to the short sub-pixel 120, during positive polarity display, the voltage of the short sub-pixel 120 is greater than the voltage of the long sub-pixel 110. To ensure that the long sub-pixel 110 and the short sub-pixel 120 have the same brightness, the first data voltage supplied to the long sub-pixel 110 is greater than the second data voltage. During negative polarity display, the voltage of the long sub-pixel 110 is greater than the voltage of the short sub-pixel 120. To ensure that the long sub-pixel 110 and the short sub-pixel 120 have the same brightness, the first data voltage is less than the second data voltage.
[0064] The voltage difference between the first data voltage and the second data voltage is equal to a preset standard value to ensure that the brightness of the long-hand sub-pixel 110 and the short-hand sub-pixel 120 is equal. The long-hand sub-pixel 110 has parasitic capacitance between its connection to the data line, and similarly, the short-hand sub-pixel 120 has parasitic capacitance between itself and the data line. The magnitudes of these two parasitic capacitances differ due to their distance from each other. The preset standard value compensates for this difference. When the first data voltage is applied to the long-hand sub-pixel 110, it overcomes the parasitic capacitance of the long-hand sub-pixel 110; similarly, when the second data voltage is applied to the short-hand sub-pixel 120, it overcomes the parasitic capacitance of the short-hand sub-pixel 120. By setting the preset standard value, the voltage of the first data voltage applied to the long-hand sub-pixel 110 is equal to the voltage of the second data voltage applied to the short-hand sub-pixel 120, thus ensuring that the brightness of the long-hand sub-pixel 110 and the short-hand sub-pixel 120 is equal.
[0065] In this embodiment, both the long-hand sub-pixel 110 and the short-hand sub-pixel 120 are connected to the same data line, with the short-hand sub-pixel 120 being closer to the data line and the long-hand sub-pixel 110 being farther away. The voltage signal provided by the data line includes a first data voltage and a second data voltage, which are provided to the long-hand sub-pixel 110 and the short-hand sub-pixel 120 respectively through the scan line. Under the action of the scan signal, the long-hand sub-pixel 110 and the short-hand sub-pixel 120 are turned on respectively. When the long-hand sub-pixel 110 is turned on, the first data voltage is provided to the long-hand sub-pixel 110. When the short-hand sub-pixel 120 is turned on, the second data voltage is provided to the short-hand sub-pixel 120. The voltage difference between the first data voltage and the second data voltage is equal to the preset standard value. The preset standard value compensates for the difference in voltage magnitude caused by different distances, reduces the influence caused by different parasitic capacitances, and makes the actual voltage acting on the long hand sub-pixel 110 and the short hand sub-pixel 120 the same, ensuring that the brightness of the long hand sub-pixel 110 and the short hand sub-pixel 120 is the same, thereby reducing the uneven distribution of brightness and darkness.
[0066] The preset standard value can be calculated based on the parasitic capacitance of the short hand sub-pixel 120 and the long hand sub-pixel 110.
[0067]
[0068] Where ΔV is the preset standard value, Cgs2 is the parasitic capacitance of the short-handed sub-pixel 120, Cgs1 is the parasitic capacitance of the long-handed sub-pixel 110, Vgon is the voltage when the gate of each sub-pixel is turned on, Vgoff is the voltage when the gate of each sub-pixel is turned off, Clc is the liquid crystal capacitance, Cst is the storage capacitance, Cpd is the coupling capacitance between the electrode and the data line of each sub-pixel, and Cgs is the parasitic capacitance between the gate and the source of each sub-pixel. The preset standard value can be calculated using the above formula. Δ The size of V.
[0069] In this application, if adjacent data lines are supplied with voltages of the same polarity, signal crosstalk is likely to occur. Therefore, the voltages applied to adjacent data lines need to be switched between positive and negative polarities. Specifically, multiple display units 10 are provided, arranged sequentially in the row and column directions; the voltage polarity of display units 10 connected to the same data line is the same, while the voltage polarities of display units 10 on adjacent data lines are opposite. Thus, in two adjacent data lines, one data line provides a positive voltage, and the other provides a negative voltage. The positive and negative voltages can be switched, thereby ensuring that the voltage polarities applied to adjacent data lines are opposite, reducing signal crosstalk.
[0070] Furthermore, on the same data line, the display units 10 are spaced apart along the column direction of the data line. Other display units 10 connected to adjacent data lines are arranged in the spaced areas of the display units 10. Therefore, it can be seen that the voltage polarities of adjacent display units 10 are opposite within the same display row or column. For example, in the same display row, the voltage polarities of multiple display units 10 may be positive, negative, positive, and negative in sequence. Similarly, in the same display column, the voltage polarities of multiple display units 10 may also be positive, negative, positive, and negative in sequence.
[0071] This application provides at least two connection methods for connecting the long hand sub-pixel 110 and the short hand sub-pixel 120 via the scan line.
[0072] See again Figure 1 As shown, in the first connection method, two scan lines are designated as the first scan line and the second scan line. Each long hand sub-pixel 110 in each display unit 10 is connected to the first scan line, and each short hand sub-pixel 120 in each display unit 10 is connected to the second scan line. The first scan line provides the first scan signal, and the second scan line provides the second scan signal. Therefore, in the entire display panel, the first scan line only connects to the long hand sub-pixels 110, and the second scan line only connects to the short hand sub-pixels 120. Each long hand sub-pixel 110 receives only the first scan signal, and each short hand sub-pixel 120 receives only the second scan signal. This results in a more regular structural arrangement of the entire display panel.
[0073] It should be noted that each row of display unit 10 is provided with two scan lines, that is, each row is provided with a first scan line and a second scan line.
[0074] See Figure 2 As shown, the second connection method is that the two scan lines are the first scan line and the second scan line, respectively. In the row direction, the two adjacent display units 10 are the first display unit 11 and the second display unit 12, respectively.
[0075] The short hand sub-pixel 120 of the first display unit 11 is connected to the first scan line, and the long hand sub-pixel 110 of the first display unit 11 is connected to the second scan line; the long hand sub-pixel 110 of the second display unit 12 is connected to the first scan line, and the short hand sub-pixel 120 of the second display unit 12 is connected to the second scan line. The first scan line provides a first scan signal, and the second scan line provides a second scan signal. In the first display unit 11, the first scan signal acts on the short hand sub-pixel 120, and the second scan signal acts on the long hand sub-pixel 110. In the second display unit 12, the first scan signal acts on the long hand sub-pixel 110, and the second scan signal acts on the short hand sub-pixel 120.
[0076] For the first display unit 11, after the first scan signal is applied to the short hand sub-pixel 120, the second data voltage is applied to the short hand sub-pixel 120. After the second scan signal is applied to the long hand sub-pixel 110, the first data voltage is applied to the short hand sub-pixel 120.
[0077] For the second display unit 12, after the first scan signal is applied to the long hand sub-pixel 110, the first data voltage is applied to the long hand sub-pixel 110, and after the second scan signal is applied to the short hand sub-pixel 120, the second data voltage is applied to the short hand sub-pixel 120.
[0078] Based on the second arrangement described above, the first display unit 11 and the second display unit 12 can be arranged in at least three different ways within the same row. At least four display units 10 can be arranged along the row direction, and the order of the four display units 10 is as follows:
[0079] See Figure 3 As shown, in the first arrangement, there is a first display unit 11, a second display unit 12, and a second display unit 12; the first display unit 11 and the second display unit 12 are arranged alternately.
[0080] See Figure 4 As shown, in the second arrangement, there is a first display unit 11, a second display unit 12, and a first display unit 11; in this arrangement, at least two second display units 12 are arranged adjacent to each other.
[0081] See Figure 5 As shown, the third arrangement includes a second display unit 12, a first display unit 11, and a second display unit 12. In this arrangement, at least two first display units 11 are arranged adjacent to each other.
[0082] See Figure 10As shown, to ensure the pixel driving architecture can successfully complete the display driving, the pixel driving architecture includes a data voltage driving module 20 and a scan signal driving module 30. The scan signal driving module 30 is connected to two scan lines respectively, and provides scan signals to the two scan lines respectively. The data voltage driving module 20 is connected to a data line, and provides a first data voltage and a second data voltage to the data line. The pixel driving architecture also includes a timing controller 40, which is connected to both the data voltage driving module 20 and the scan signal driving module 30. The timing controller 40 ensures that the data voltage driving module 20 cooperates in providing the first data voltage and the second data voltage when the scan signal driving module 30 provides the scan signal. When the long hand sub-pixel 110 is turned on, the first data voltage is applied to the long hand sub-pixel 110; when the short hand sub-pixel 120 is turned on, the second data voltage is applied to the short hand sub-pixel 120.
[0083] Example 2
[0084] This application also provides a pixel driving method, which is applied to a pixel driving architecture. The pixel driving architecture includes a data line and a display unit 10. The display unit 10 includes a long sub-pixel 110 and a short sub-pixel 120. The long sub-pixel 110 and the short sub-pixel 120 are located on the same side of the data line, and the long sub-pixel 110 is located on the side of the short sub-pixel 120 away from the data line. Both the long sub-pixel 110 and the short sub-pixel 120 are connected to the data line.
[0085] The pixel-driven architecture also includes two scan lines, one connecting to the long hand pixel 110 and the other connecting to the short hand pixel 120.
[0086] See Figure 11 As shown, the pixel driving method includes:
[0087] In step S10, one of the scan lines is controlled to provide a scan signal to the long-hand sub-pixel 110. This scan signal can be understood as the first scan signal, and the long-hand sub-pixel 110 responds to the scan signal of the scan line. At this time, the long-hand sub-pixel 110 is turned on. The control data line provides a first data voltage, and the first data voltage is applied to the long-hand sub-pixel 110.
[0088] In step S20, another scan line is controlled to provide a scan signal to the short-hand sub-pixel 120. This scan signal can be understood as a second scan signal, and the short-hand sub-pixel 120 responds to the scan signal of the other scan line. At this time, the short-hand sub-pixel 120 is turned on. A second data voltage is provided by the control data line and applied to the short-hand sub-pixel 120. The difference between the first data voltage and the second data voltage satisfies a preset standard value so that the brightness of the long-hand sub-pixel 110 and the short-hand sub-pixel 120 is the same.
[0089] In this embodiment, the voltage signal provided by the data line includes a first data voltage and a second data voltage. Scan signals are provided to the long-hand sub-pixel 110 and the short-hand sub-pixel 120 respectively via the scan line, causing the long-hand sub-pixel 110 and the short-hand sub-pixel 120 to turn on respectively. When the long-hand sub-pixel 110 is turned on, the first data voltage is provided to it. When the short-hand sub-pixel 120 is turned on, the second data voltage is provided to it. The voltage difference between the first data voltage and the second data voltage is equal to a preset standard value. This preset standard value compensates for the voltage difference caused by different distances, reduces the impact of different parasitic capacitances, and ensures that the actual voltage acting on the long-hand sub-pixel 110 and the short-hand sub-pixel 120 is the same, guaranteeing that the brightness of the long-hand sub-pixel 110 and the short-hand sub-pixel 120 is the same, thereby reducing uneven brightness distribution.
[0090] See Figure 12 As shown, prior to the step of controlling one of the scan lines to provide a scan signal to the long sub-pixel 110, the following steps are included:
[0091] Step S01: Obtain the parasitic capacitance of the long-hand sub-pixel 110 and the parasitic capacitance of the short-hand sub-pixel 120, and determine a preset standard value based on the parasitic capacitance of the long-hand sub-pixel 110 and the short-hand sub-pixel 120; the magnitude of the data voltage applied to it can be calculated through the parasitic capacitance of the long-hand sub-pixel 110 and the short-hand sub-pixel 120, and then the actual data voltage difference between the two can be obtained.
[0092] Step S02: Based on preset standard values, generate a first data voltage and a second data voltage respectively. This can be achieved by using the second data voltage of the short-hand sub-pixel 120 as a reference and adding the preset standard value to it to obtain the first data voltage. Alternatively, it can be achieved by using the first data voltage of the long-hand sub-pixel 110 as a reference and adding the preset standard value to it to calculate the second data voltage.
[0093] Multiple display units 10 are provided, and the multiple display units 10 are arranged sequentially in the row direction and column direction;
[0094] See Figure 13 As shown, after the steps of generating the first data voltage and the second data voltage respectively, the process includes:
[0095] Step S03: Confirm the display time of a frame; obtain the length of time it takes to display a frame.
[0096] Step S04: Based on the display time of the frame, the provision time of the first data voltage and the second data voltage is divided into a first stage and a second stage, and the provision time of the first stage and the second stage are equal. For the same data line, since each display unit 10 includes a short sub-pixel 120 and a long sub-pixel 110 respectively, in order to ensure that the charging time is the same, it is divided into a first stage and a second stage with equal charging time.
[0097] The steps of applying the first data voltage to the long-hand sub-pixel 110 include:
[0098] In step S210, in the first stage, a first data voltage is simultaneously provided to the long sub-pixels 110 of the same polarity display unit 10;
[0099] The step of applying the second data voltage to the short hand sub-pixel 120 includes:
[0100] In step S220, in the second stage, a second data voltage is simultaneously provided to the short-handed sub-pixels 120 of the same polarity display unit 10. For the same polarity display unit 10, it is not necessary to switch between the first data voltage and the second data voltage multiple times, and the charging of the long-handed sub-pixels 110 and the short-handed sub-pixels 120 can be completed separately.
[0101] Combination Figure 1 and Figure 6 As shown, the specific driving process of the pixel driving method is illustrated with an example, taking the display unit 10 connected by data line Dn+1 as an example. Data line Dn+1 provides a positive voltage and has a total of 8 scan lines. Two scan lines form a group, where G1, G3, G5, and G7 represent the first scan line, and G2, G4, G6, and G8 represent the second scan line. Initially, the voltage in data line Dn+1 is the reference voltage Vcom. Gn represents the scan line, and Gn includes G1, G2, G3, G4, G5, G6, G7, and G8. The data lines from left to right are Dn-1, Dn, Dn+1, Dn+2, Dn+3, Dn+4, and Dn+5.
[0102] In the first stage, a first data voltage V1 is provided in the data line Dn+1. At this time, the scan lines G1, G3, G5 and G7 provide the first scan signal. The long sub-pixel 110 of the display unit 10 connected to the scan lines G1, G3, G5 and G7 is turned on, and the first data voltage V1 is loaded into the long sub-pixel 110 of the corresponding display unit 10.
[0103] In the second stage, a second data voltage V2 is provided in data line Dn+1. At this time, scan lines G2, G4, G6, and G8 provide a second scan signal. The short-hand sub-pixels 120 of the display unit 10 connected to scan lines G2, G4, G6, and G8 are turned on, and the second data voltage V2 is applied to the corresponding short-hand sub-pixels 120 of the display unit 10. By dividing the process into a first stage and a second stage, the voltage polarity on the same data line does not need to be reversed. The first stage simultaneously completes the charging of four long-hand sub-pixels 110, and the second stage simultaneously completes the charging of four short-hand pixels 120.
[0104] See Figure 7 In the next frame, data line Dn+1 flips to switch to negative voltage, thus dividing the process into a first stage and a second stage. In the first stage, the long-hand sub-pixel 110 connecting scan lines G1, G3, G5, and G7 is activated, and the first data voltage V1 is applied to the long-hand sub-pixel 110. In the second stage, the short-hand sub-pixel 120 connecting scan lines G2, G4, G6, and G8 is activated, and the second data voltage V2 is applied to the corresponding short-hand sub-pixel 120.
[0105] See again Figure 1 As shown, data lines Dn-1, Dn+1, and Dn+3 provide positive voltage, and they can be connected to the same point. Data lines Dn, Dn+2, and Dn+4 provide negative voltage, and they can also be connected to the same point. In the next frame, the polarity of the voltages provided by data lines Dn-1, Dn+1, Dn+3, and Dn, Dn+2, and Dn+4 reverses, switching from positive to negative voltage, and vice versa.
[0106] Combination Figure 2 and Figure 8 As shown, for the second connection method of the long hand sub-pixels 110 and the short hand sub-pixels 120, taking data line Dn+1 as an example. During positive polarity display, in the first stage, the long hand sub-pixels 110 of each connected scan line G1, G4, G5, and G8 can be simultaneously activated, and data line Dn+1 provides the first data voltage V1. In the second stage, the short hand sub-pixels 120 of each connected scan line G2, G3, G6, and G7 can be simultaneously activated, and data line Dn+1 provides the second data voltage V2.
[0107] See Figure 9As shown, similarly, in negative polarity display, in the first stage, the long-hand sub-pixels 110 connected to scan lines G1, G4, G5, and G8 can be turned on simultaneously, and data line Dn+1 provides the first data voltage V1. In the second stage, the short-hand sub-pixels 120 connected to scan lines G2, G3, G6, and G7 can also be turned on simultaneously, and data line Dn+1 provides the second data voltage V2. Therefore, the long and short hand connection method of each display unit 10 can be flexibly set. Through the cooperation of scan lines and data lines, the first data voltage can be accurately applied to the long-hand sub-pixels 110, and the second data voltage can be applied to the short-hand sub-pixels 120.
[0108] For the same data line, only the first data voltage V1 and the second data voltage V2 are switched within a frame. The polarity of the voltage remains unchanged, only the magnitude of the voltage changes.
[0109] Example 3
[0110] See Figure 10 and Figure 14 As shown, this application also provides a display device 60, which includes a power module 50 and a pixel driving architecture as described above. The pixel driving architecture is connected to the power module 50, and the power module 50 supplies power to the pixel driving architecture. The display device 60 also includes a display panel, which has a display area 610 and a non-display area 620 surrounding the display area 610. The power module 50, data voltage driving module 20, scan signal driving module 30, and timing controller 40 can all be located in the non-display area 620 to avoid affecting the display screen. The display unit 10 can be located in the display area 610.
[0111] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein.
[0112] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.
Claims
1. A pixel-driven architecture, characterized in that, The pixel driving architecture includes a data line and a display unit. The display unit includes a short hand sub-pixel and a long hand sub-pixel. The short hand sub-pixel and the long hand sub-pixel are located on the same side of the data line, and the long hand sub-pixel is located on the side of the short hand sub-pixel away from the data line. Both the short hand sub-pixel and the long hand sub-pixel are connected to the data line. The pixel driving architecture further includes two scan lines, one scan line connected to the short hand sub-pixel and the other scan line connected to the long hand sub-pixel. The data line provides a first data voltage and a second data voltage. The two scan lines provide scan signals to the short hand sub-pixel and the long hand sub-pixel respectively, so that the first data voltage is applied to the long hand sub-pixel and the second data voltage is applied to the short hand sub-pixel respectively. Wherein, the voltage difference between the first data voltage and the second data voltage is equal to a preset standard value, so that the brightness of the short hand sub-pixel and the long hand sub-pixel is equal; The preset standard value is determined based on the parasitic capacitance of the long-hand sub-pixel and the parasitic capacitance of the short-hand sub-pixel. The parasitic capacitance of the long-hand sub-pixel is the parasitic capacitance generated between the long-hand sub-pixel and the data line, and the parasitic capacitance of the short-hand sub-pixel is the parasitic capacitance generated between the short-hand sub-pixel and the data line.
2. The pixel driving architecture according to claim 1, characterized in that, The display unit is provided in multiple ways, and the multiple display units are arranged sequentially in the row direction and the column direction; Among them, the display units connected to the same data line have the same voltage polarity, and the display units on two adjacent data lines have opposite voltage polarities.
3. The pixel driving architecture according to claim 2, characterized in that, The two scan lines are a first scan line and a second scan line, respectively. The long hand sub-pixel in each display unit is connected to the first scan line, and the short hand sub-pixel in each display unit is connected to the second scan line.
4. The pixel driving architecture according to claim 2, characterized in that, The two scan lines are the first scan line and the second scan line, respectively. In the row direction, two adjacent display units are the first display unit and the second display unit, respectively. The short hand sub-pixel of the first display unit is connected to the first scan line, and the long hand sub-pixel of the first display unit is connected to the second scan line; The short hand sub-pixel of the second display unit is connected to the second scan line, and the long hand sub-pixel of the second display unit is connected to the first scan line.
5. The pixel driving architecture according to claim 4, characterized in that, In the row direction, at least four display units are provided, and the order in which the four display units are provided is as follows: The first display unit, the second display unit, the first display unit and the second display unit; Alternatively, the first display unit, the second display unit, the second display unit, and the first display unit; Alternatively, the second display unit, the first display unit, the first display unit, and the second display unit.
6. The pixel driving architecture according to claim 1, characterized in that, The pixel driving architecture includes a data voltage driving module and a scan signal driving module; The scanning signal driving module is connected to the two scanning lines respectively, and the scanning signal driving module provides scanning signals to the two scanning lines respectively; The data voltage driving module is connected to the data line, and the data voltage driving module provides the first data voltage and the second data voltage to the data line. The pixel driving architecture also includes a timing controller, which is connected to the data voltage driving module and the scan signal driving module respectively, so that when the scan signal driving module provides the scan signal, the data voltage driving module cooperates to provide the first data voltage and the second data voltage.
7. A pixel driving method, characterized in that, The pixel driving method is applied to a pixel driving architecture, which includes a data line and a display unit. The display unit includes a short hand sub-pixel and a long hand sub-pixel. The short hand sub-pixel and the long hand sub-pixel are located on the same side of the data line, and the long hand sub-pixel is located on the side of the short hand sub-pixel away from the data line. Both the short hand sub-pixel and the long hand sub-pixel are connected to the data line. The pixel driving architecture also includes two scan lines, one of which connects to the short hand sub-pixel and the other of which connects to the long hand sub-pixel; The pixel driving method includes: Obtain the parasitic capacitance of the long-hand sub-pixel and the parasitic capacitance of the short-hand sub-pixel, and determine a preset standard value based on the parasitic capacitance of the long-hand sub-pixel and the parasitic capacitance of the short-hand sub-pixel; Based on the preset standard value, a first data voltage and a second data voltage are generated respectively; One of the scan lines is controlled to provide a scan signal to the long hand sub-pixel. The long hand sub-pixel responds to the scan signal of the scan line by controlling the data line to provide the first data voltage and applying the first data voltage to the long hand sub-pixel. The other scan line is controlled to provide a scan signal to the short hand sub-pixel. The short hand sub-pixel responds to the scan signal of the other scan line by controlling the data line to provide the second data voltage and loading the second data voltage onto the short hand sub-pixel. Wherein, the difference between the first data voltage and the second data voltage satisfies the preset standard value, so that the brightness of the short hand sub-pixel and the long hand sub-pixel is the same, the parasitic capacitance of the long hand sub-pixel is the parasitic capacitance generated between the long hand sub-pixel and the data line, and the parasitic capacitance of the short hand sub-pixel is the parasitic capacitance generated between the short hand sub-pixel and the data line.
8. The pixel driving method according to claim 7, characterized in that, After the steps of generating the first data voltage and the second data voltage respectively, the process includes: Confirm the display time of a single frame; Based on the display time of the frame, the provision time of the first data voltage and the second data voltage is divided into a first stage and a second stage, and the provision time of the first stage and the second stage are equal. The step of applying the first data voltage to the long-handed sub-pixel includes: In the first stage, the first data voltage is simultaneously provided to the long sub-pixels of the display unit of the same polarity; The step of applying the second data voltage to the short hand sub-pixel includes: In the second stage, the second data voltage is simultaneously provided to the short-handed sub-pixels of the display unit of the same polarity.
9. A display device, characterized in that, The display device is provided with a power module and a pixel driving architecture as described in any one of claims 1 to 6, wherein the pixel driving architecture is connected to the power module and the power module supplies power to the pixel driving architecture.
Citation Information
Patent Citations
Driving method of display panel and display panel
CN113889023A