Driving device of self-luminous display panel and operating method thereof

Abstract

The invention provides a driving device of a self-luminous display panel and an operation method thereof. The driving device comprises a plurality of gamma voltage circuits, a group of driving channels and a routing circuit. Each driving channel is coupled to a corresponding gamma voltage circuit to receive a set of corresponding gamma voltages. Each driving channel converts the corresponding sub-pixel data to the corresponding gray scale voltage based on the corresponding gamma voltage group. The routing circuit is coupled to the output ends of the driving channels. The routing circuit dynamically changes the coupling relationship between the driving channels and a plurality of data lines of the self-luminous display panel during different scanning periods.

Description

Technical Field

[0001] The present invention relates to a display device, and in particular to a driving device of a self-luminous display panel and an operating method thereof. Background Art

[0002] With the popularity of micro organic light-emitting diode (μ-OLED) displays, the demand for high resolution is getting higher and higher, which in turn increases the number of source channels in a single integrated circuit (IC). In μ-OLED application scenarios, the output voltage of the source channel is all positive voltage. Generally speaking, a single gamma (GAMMA) voltage circuit is configured in a single integrated circuit (the driving circuit of the OLED panel) to provide a single set of GAMMA voltages to all source channels (load circuits). Therefore, the load of the single GAMMA voltage circuit also increases with the increase in the number of channels. When the output voltages of all source channels flip together, the disturbance of the source channel to the GAMMA voltage is an important issue. As the number of source channels increases, the disturbance of the source channel to the GAMMA voltage becomes more serious.

[0003] There are three main solutions in the past. First, strengthen the slew rate of the operational amplifier of the GAMMA voltage circuit (GAMMA source), but this solution is not effective for the source channel close to the outside of the integrated circuit (the source channel far away from the GAMMA voltage circuit). Second, increase the width of the GAMMA voltage transmission wire between the GAMMA voltage circuit and the source channel to reduce the resistance of the GAMMA voltage transmission wire, but this solution sacrifices the wiring space of other wires and increases parasitic capacitance. Third, reduce the resistance of the voltage divider resistor string (GAMMA resistor) inside the GAMMA voltage circuit to increase the GAMMA current and thus accelerate the speed at which the GAMMA voltage stabilizes after being disturbed by the source channel, but this solution will increase power consumption and is not very helpful for the source channel far away from the GAMMA voltage circuit.

[0004] It should be noted that the contents of the "Background Technology" section are used to help understand the present invention. Some (or all) of the contents disclosed in the "Background Technology" section may not be known to those skilled in the art. The contents disclosed in the "Background Technology" section do not mean that the contents have been known to those skilled in the art before the present invention is applied. Summary of the invention

[0005] The invention provides a driving device of a self-luminous display panel and an operating method thereof, so as to reduce the disturbance of a driving channel to a GAMMA voltage.

[0006] In an embodiment according to the present invention, the driving device includes a plurality of gamma voltage circuits, a first driving channel group, and a first routing circuit. Each gamma voltage circuit generates a gamma voltage group. Each driving channel in the first driving channel group is coupled to a corresponding gamma voltage circuit in the gamma voltage circuits to receive a corresponding gamma voltage group. Each driving channel in the first driving channel group converts corresponding sub-pixel data into corresponding grayscale voltages based on the corresponding gamma voltage group. The first routing circuit is coupled to the output end of each driving channel in the first driving channel group to receive the corresponding grayscale voltage. The first routing circuit dynamically changes the coupling relationship between different driving channels in the first driving channel group and different data lines in the first data line group of the self-luminous display panel during different scanning periods.

[0007] In an embodiment according to the present invention, the above-mentioned operating method includes: providing multiple gamma voltage circuits, a first driving channel group and a first routing circuit, wherein each gamma voltage circuit generates a gamma voltage group, and each driving channel in the first driving channel group is coupled to a corresponding gamma voltage circuit among these gamma voltage circuits to receive a corresponding gamma voltage group; each driving channel in the first driving channel group converts corresponding sub-pixel data into corresponding grayscale voltage based on the corresponding gamma voltage group, wherein the first routing circuit is coupled to the output end of each driving channel in the first driving channel group to receive the corresponding grayscale voltage; and the first routing circuit dynamically changes the coupling relationship between different driving channels in the first driving channel group and different data lines in the first data line group of the self-luminous display panel during different scanning periods.

[0008] Based on the above, the embodiments of the present invention can use multiple gamma voltage circuits to generate multiple sets of gamma voltages based on actual design. Ideally, the multiple sets of gamma voltages are no different from each other. Different gamma voltage circuits can supply gamma voltages to different driving channels. Based on this, although the number of driving channels (load circuits) is large, the embodiments of the present invention can reduce the output load of each gamma voltage circuit by increasing the number of gamma voltage circuits, thereby reducing the disturbance of the driving channel to the gamma voltage. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a schematic diagram of a circuit block of a driving device of a self-luminous display panel according to an embodiment of the present invention.

[0010] Figure 2 It is a flowchart of an operating method of a driving device according to an embodiment of the present invention.

[0011] Figure 3 FIG. 1 is a circuit diagram of a driving channel and a routing circuit according to an embodiment of the present invention.

[0012] Figure 4 FIG. 2 is a circuit diagram of a routing circuit according to another embodiment of the present invention.

[0013] Figure 5 FIG. 4 is a circuit diagram of a routing circuit according to another embodiment of the present invention.

[0014] Description of Reference Numerals

[0015] 10: Self-luminous display panel

[0016] 100: Drive device

[0017] 110_1, 110_2, 110_3, 110_4, 110_n: Gamma voltage circuit

[0018] 120_1, 120_m: drive channel group

[0019] 130_1, 130_m: Routing circuit

[0020] BUF31: Buffer

[0021] DAC31: Digital to Analog Converter

[0022] DC31, DC32, DC41, DC42, DC43, DC51, DC52, DC53, DC54: drive channel

[0023] S210, S220, S230: Steps

[0024] SW31, SW32, SW33, SW34, SW41, SW42, SW43, SW44, SW45, SW46, SW47, SW48, SW49, SW501, SW502, SW503, SW504, SW505, SW506, SW507, SW508, SW509, SW510, SW511, SW512, SW513, SW514, SW515, SW516: switch DETAILED DESCRIPTION

[0025] Reference will now be made in detail to exemplary embodiments of the present invention, examples of which are illustrated in the accompanying drawings. Whenever possible, the same reference numerals are used in the drawings and the description to refer to the same or like parts.

[0026] The term "coupled (or connected)" used in the entire specification of this application (including the claims) may refer to any direct or indirect means of connection. For example, if the text describes a first device coupled (or connected) to a second device, it should be interpreted that the first device can be directly connected to the second device, or the first device can be indirectly connected to the second device through other devices or some connection means. The terms "first", "second", etc. mentioned in the entire specification of this application (including the claims) are used to name the components (element) or to distinguish different embodiments or scopes, and are not used to limit the upper or lower limit of the number of components, nor to limit the order of components. In addition, wherever possible, components / components / steps with the same number in the drawings and embodiments represent the same or similar parts. Components / components / steps using the same number or the same terminology in different embodiments can refer to the relevant descriptions of each other.

[0027] Generally speaking, when a single GAMMA voltage circuit is configured in a single integrated circuit (a driving device of a self-luminous display panel), as the number of driving channels increases, the disturbance of the GAMMA voltage by the driving channel becomes more serious. The following embodiments can reduce the output load of each GAMMA voltage circuit by increasing the number of GAMMA voltage circuits, thereby reducing the disturbance of the GAMMA voltage by the driving channel.

[0028] Figure 1 1 is a circuit block diagram of a driving device 100 of a self-luminous display panel 10 according to an embodiment of the present invention. This embodiment does not limit the specific implementation of the self-luminous display panel 10. The self-luminous display panel 10 may include an organic light-emitting diode (OLED) display panel or other display panels. For example, the self-luminous display panel 10 may include a micro OLED (Micro OLED or μ-OLED) display panel. The driving device 100 is coupled to multiple data lines of the self-luminous display panel 10.

[0029] Figure 2 is a flow chart of an operating method of a driving device according to an embodiment of the present invention. Figure 1 and Figure 2 In step S210, a plurality of gamma voltage circuits, a set of driving channels, and a routing circuit are provided in the driving device 100. Figure 1 In the illustrated embodiment, the driving device 100 includes a plurality of gamma voltage circuits, a plurality of driving channels, and a plurality of routing circuits. The number of driving channels can be any integer determined according to the actual design. It is assumed here that the number of gamma voltage circuits is n, for example Figure 1The gamma voltage circuits 110_1 to 110_n are shown. The number n of the gamma voltage circuits can be any integer greater than 1 determined according to actual design. The n gamma voltage circuits 110_1 to 110_n generate n sets of gamma voltages. In an ideal case, the n sets of gamma voltages are indistinguishable from each other.

[0030] Based on the number of the gamma voltage circuits 110_1 to 110_n, all driving channels of the driving device 100 may be grouped into a plurality of driving channels, for example Figure 1 The driving channel groups 120_1 to 120_m are shown. The number m of the driving channel groups can be any integer determined according to the actual design. Each driving channel group 120_1 to 120_m contains a maximum of n driving channels. In the same group of driving channels (for example, driving channel group 120_1), each driving channel is coupled to a corresponding gamma voltage circuit in the gamma voltage circuits 110_1 to 110_n to receive a corresponding GAMMA voltage. That is, different driving channels in the same group of driving channels are coupled to different gamma voltage circuits. Therefore, different gamma voltage circuits can supply GAMMA voltages to different driving channels in the same driving channel group. In step S220, each driving channel can convert the corresponding sub-pixel data into a corresponding grayscale voltage based on the corresponding GAMMA voltage group received.

[0031] Each gamma voltage circuit 110_1-110_n generates a set of gamma voltages. Ideally, the n sets of gamma voltages generated by the gamma voltage circuits 110_1-110_n are no different from each other. Based on actual circuit errors or other factors, the n sets of gamma voltages generated by the gamma voltage circuits 110_1-110_n may have mismatch problems. In order to solve the mismatch problem generated by different sets of gamma voltages of different gamma voltage circuits 110_1-110_n, Figure 1 The illustrated embodiment configures a routing circuit for each drive channel group, for example Figure 1 Routing circuits 130_1 to 130_m are shown.

[0032] Each routing circuit (e.g., routing circuit 130_1) is coupled to the output end of each driving channel in different driving channel groups to receive the corresponding grayscale voltage. Taking routing circuit 130_1 as an example (other routing circuits can be analogized by analogy), in step S230, routing circuit 130_1 can dynamically change the coupling relationship between different driving channels in driving channel group 120_1 and different data lines in the first data line group of the self-luminous display panel 10 during different scanning periods. Similarly, routing circuit 130_m can dynamically change the coupling relationship between different driving channels in driving channel group 120_m and different data lines in the mth data line group of the self-luminous display panel 10 during different scanning periods. Figure 1 The other driving channel groups and other routing circuits shown can refer to the relevant description of the driving channel group 120_1 and the routing circuit 130_1, so they are not repeated here. Therefore, each routing circuit 130_1~130_m can implement a chopper function between multiple adjacent data lines. The routing circuits 130_1~130_m can allow the output of each driving channel to be transmitted to different data lines at different times, thereby reducing the difference in visual effects caused by different GAMMA voltage groups.

[0033] Figure 3 FIG. 1 is a circuit diagram of a driving channel set 120_1 and a routing circuit 130_1 according to an embodiment of the present invention. Figure 3 The driving channel group 120_1 and the routing circuit 130_1 can be used as Figure 1 The driving channel set 120_1 and the routing circuit 130_1 are shown as one of many implementation examples. Figure 1 and Figure 3 Other driving channel groups and other routing circuits shown can refer to Figure 3 The related descriptions of the driving channel group 120_1 and the routing circuit 130_1 are shown, so they are not repeated here.

[0034] exist Figure 3In the illustrated embodiment, the driving device 100 includes two gamma voltage circuits 110_1 and 110_2, and the driving channel group 120_1 includes two driving channels DC31 and DC32. The driving channel DC31 is coupled to the gamma voltage circuit 110_1 to receive a group of GAMMA voltages (a first gamma voltage group), and the driving channel DC32 is coupled to the gamma voltage circuit 110_2 to receive another group of GAMMA voltages (a second gamma voltage group). During the first scanning period, the routing circuit 130_1 couples the output end of the driving channel DC31 to the first data line in the first data line group of the self-luminous display panel 10, and the routing circuit 130_1 couples the output end of the driving channel DC32 to the second data line in the first data line group of the self-luminous display panel 10. During the second scanning period after the first scanning period, the routing circuit 130_1 couples the output end of the driving channel DC31 to the second data line in the first data line group of the self-luminous display panel 10, and the routing circuit 130_1 couples the output end of the driving channel DC32 to the first data line in the first data line group of the self-luminous display panel 10.

[0035] exist Figure 3 In the illustrated embodiment, the driving channel DC31 includes a digital-to-analog converter DAC31 and a buffer BUF31 . Figure 3 Other drive channels (such as drive channel DC32) shown can refer to Figure 3 The relevant description of the driving channel DC31 shown in the figure is not repeated here. The digital-to-analog converter DAC31 is coupled to a corresponding gamma voltage circuit 110_1 among the different gamma voltage circuits to receive a set of corresponding gamma voltages. The digital-to-analog converter DAC31 can convert the sub-pixel data into grayscale voltages based on the corresponding GAMMA voltage group provided by the gamma voltage circuit 110_1. The input end of the buffer BUF31 is coupled to the output end of the digital-to-analog converter DAC31 to receive the grayscale voltage. The output end of the buffer BUF31 is coupled to the routing circuit 130_1.

[0036] exist Figure 3In the illustrated embodiment, the routing circuit 130_1 includes a switch SW31, a switch SW32, a switch SW33, and a switch SW34. A first end of the switch SW31 is coupled to an output end of a driving channel DC31. A second end of the switch SW31 is coupled to the first data line in a first data line group of the self-luminous display panel 10. A first end of the switch SW32 is coupled to an output end of the driving channel DC31. A second end of the switch SW32 is coupled to the second data line in a first data line group of the self-luminous display panel 10. A first end of the switch SW33 is coupled to an output end of the driving channel DC32. A second end of the switch SW33 is coupled to the first data line in a first data line group of the self-luminous display panel 10. A first end of the switch SW34 is coupled to an output end of the driving channel DC32. A second end of the switch SW34 is coupled to the second data line in a first data line group of the self-luminous display panel 10. During a first scanning period, the switch SW31 and the switch SW34 are turned on, and the switch SW32 and the switch SW33 are turned off. During the second scanning period, switches SW31 and SW34 are turned off, while switches SW32 and SW33 are turned on. The operation during the odd scanning period can refer to the relevant description of the first scanning period, and the operation during the even scanning period can refer to the relevant description of the second scanning period, so it will not be repeated.

[0037] Figure 4 FIG. 1 is a circuit diagram of a routing circuit 130_1 according to another embodiment of the present invention. Figure 4 The driving channel group 120_1 and the routing circuit 130_1 can be used as Figure 1 The driving channel set 120_1 and the routing circuit 130_1 are shown as one of many implementation examples. Figure 1 and Figure 4 Other driving channel groups and other routing circuits shown can refer to Figure 4 The related descriptions of the driving channel group 120_1 and the routing circuit 130_1 are shown, so they are not repeated here.

[0038] exist Figure 4 In the illustrated embodiment, the driving device 100 includes three gamma voltage circuits 110_1 , 110_2 , and 110_3 , and the driving channel group 120_1 includes three driving channels DC41 , DC42 , and DC43 . Figure 4 The drive channels DC41, DC42 and DC43 shown in the figure can be referred to with other drive channels. Figure 3The driving channel DC41 is coupled to the gamma voltage circuit 110_1 to receive a set of GAMMA voltages (a first gamma voltage group), the driving channel DC42 is coupled to the gamma voltage circuit 110_2 to receive another set of GAMMA voltages (a second gamma voltage group), and the driving channel DC43 is coupled to the gamma voltage circuit 110_3 to receive another set of GAMMA voltages (a third gamma voltage group).

[0039] During the first scanning period, the routing circuit 130_1 couples the output ends of the driving channel DC41, the output ends of the driving channel DC42, and the output ends of the driving channel DC43 to the first data line, the second data line, and the third data line in the first data line group of the self-luminous display panel 10 in a one-to-one manner based on the first coupling relationship. During the second scanning period after the first scanning period, the routing circuit 130_1 couples the output ends of the driving channels DC41, DC42, and DC43 to the first data line, the second data line, and the third data line in the first data line group of the self-luminous display panel 10 in a one-to-one manner based on the second coupling relationship different from the first coupling relationship. During the third scanning period after the second scanning period, the routing circuit 130_1 couples the output ends of the driving channels DC41, DC42, and DC43 to the first data line, the second data line, and the third data line in the first data line group of the self-luminous display panel 10 in a one-to-one manner based on the third coupling relationship different from the first coupling relationship and the second coupling relationship.

[0040] The first coupling relationship, the second coupling relationship and the third coupling relationship can be set according to the actual design. For example (but not limited to this), during the first scanning period, the routing circuit 130_1 couples the output end of the driving channel DC41 to the first data line of the first data line of the self-luminous display panel 10, couples the output end of the driving channel DC42 to the second data line of the first data line group of the self-luminous display panel 10, and couples the output end of the driving channel DC43 to the third data line of the first data line group of the self-luminous display panel 10. During the second scanning period, the routing circuit 130_1 couples the output end of the driving channel DC41 to the third data line of the first data line group of the self-luminous display panel 10, couples the output end of the driving channel DC42 to the first data line of the first data line group of the self-luminous display panel 10, and couples the output end of the driving channel DC43 to the second data line of the first data line group of the self-luminous display panel 10. During the third scan, the routing circuit 130_1 couples the output end of the driving channel DC41 to the second data line in the first data line group of the self-luminous display panel 10, couples the output end of the driving channel DC42 to the third data line in the first data line group of the self-luminous display panel 10, and couples the output end of the driving channel DC43 to the first data line in the first data line group of the self-luminous display panel 10.

[0041] exist Figure 4In the illustrated embodiment, the routing circuit 130_1 includes a switch SW41, a switch SW42, a switch SW43, a switch SW44, a switch SW45, a switch SW46, a switch SW47, a switch SW48, and a switch SW49. A first end of the switch SW41 is coupled to an output end of the driving channel DC41. A second end of the switch SW41 is coupled to a first data line in a first data line group of the self-luminous display panel 10. A first end of the switch SW42 is coupled to an output end of the driving channel DC41. A second end of the switch SW42 is coupled to a second data line in a first data line group of the self-luminous display panel 10. A first end of the switch SW43 is coupled to an output end of the driving channel DC41. A second end of the switch SW43 is coupled to a third data line in a first data line group of the self-luminous display panel 10. A first end of the switch SW44 is coupled to an output end of the driving channel DC42. A second end of the switch SW44 is coupled to the first data line in a first data line group of the self-luminous display panel 10. A first end of the switch SW45 is coupled to an output end of the driving channel DC42. A second end of the switch SW45 is coupled to the second data line in the first data line group of the self-luminous display panel 10. A first end of the switch SW46 is coupled to an output end of the driving channel DC42. A second end of the switch SW46 is coupled to the third data line in the first data line group of the self-luminous display panel 10. A first end of the switch SW47 is coupled to an output end of the driving channel DC43. A second end of the switch SW47 is coupled to the first data line in the first data line group of the self-luminous display panel 10. A first end of the switch SW48 is coupled to an output end of the driving channel DC43. A second end of the switch SW48 is coupled to the second data line in the first data line group of the self-luminous display panel 10. A first end of the switch SW49 is coupled to an output end of the driving channel DC43. A second end of the switch SW49 is coupled to the third data line in the first data line group of the self-luminous display panel 10.

[0042] During the first scanning period, switches SW41, SW45 and SW49 are turned on, while switches SW42, SW43, SW44, SW46, SW47 and SW48 are turned off. During the second scanning period, switches SW43, SW44 and SW48 are turned on, while switches SW41, SW42, SW45, SW46, SW47 and SW49 are turned off. During the third scanning period, switches SW42, SW46 and SW47 are turned on, while switches SW41, SW43, SW44, SW45, SW48 and SW49 are turned off. The operation during the (3*i+1)th scanning period can refer to the relevant description of the first scanning period (i is a positive integer greater than 0), the operation during the (3*i+2)th scanning period can refer to the relevant description of the second scanning period, and the operation during the (3*i+3)th scanning period can refer to the relevant description of the third scanning period, so it will not be repeated.

[0043] Figure 5 FIG. 1 is a circuit diagram of a routing circuit 130_1 according to another embodiment of the present invention. Figure 5 The driving channel group 120_1 and the routing circuit 130_1 can be used as Figure 1 The driving channel set 120_1 and the routing circuit 130_1 are shown as one of many implementation examples. Figure 1 and Figure 5 Other driving channel groups and other routing circuits shown can refer to Figure 5 The related descriptions of the driving channel group 120_1 and the routing circuit 130_1 are shown, so they are not repeated here.

[0044] exist Figure 5 In the illustrated embodiment, the driving device 100 includes four gamma voltage circuits 110_1 , 110_2 , 110_3 , and 110_4 , and the driving channel group 120_1 includes four driving channels DC51 , DC52 , DC53 , and DC54 . Figure 5 The drive channels DC51, DC52, DC53 and DC54 shown in the figure can be referred to with other drive channels. Figure 3 The related description of the driving channel DC31 shown is also analogous, so it is not repeated again. The driving channel DC51 is coupled to the gamma voltage circuit 110_1 to receive a group of GAMMA voltages (first gamma voltage group). The driving channel DC52 is coupled to the gamma voltage circuit 110_2 to receive another group of GAMMA voltages (second gamma voltage group). The driving channel DC53 is coupled to the gamma voltage circuit 110_3 to receive another group of GAMMA voltages (third gamma voltage group). The driving channel DC54 is coupled to the gamma voltage circuit 110_4 to receive another group of GAMMA voltages (fourth gamma voltage group).

[0045] During the first scanning period, the routing circuit 130_1 couples the output ends of the driving channels DC51, DC52, DC53, and DC54 to the first data line, the second data line, the third data line, and the fourth data line in the first data line group of the self-luminous display panel 10 in a one-to-one manner based on the first coupling relationship. During the second scanning period after the first scanning period, the routing circuit 130_1 couples the output ends of the driving channels DC51, DC52, DC53, and DC54 to the first data line, the second data line, the third data line, and the fourth data line in the first data line group of the self-luminous display panel 10 in a one-to-one manner based on the second coupling relationship different from the first coupling relationship. During a third scanning period after the second scanning period, the routing circuit 130_1 couples the output ends of the driving channels DC51, DC52, DC53 and DC54 to the first data line, the second data line, the third data line and the fourth data line in the first data line group of the self-luminous display panel 10 in a one-to-one manner based on a third coupling relationship different from the first coupling relationship and the second coupling relationship. During a fourth scanning period after the third scanning period, the routing circuit 130_1 couples the output ends of the driving channels DC51, DC52, DC53 and DC54 to the first data line, the second data line, the third data line and the fourth data line in the first data line group of the self-luminous display panel 10 in a one-to-one manner based on a fourth coupling relationship different from the first coupling relationship, the second coupling relationship and the third coupling relationship.

[0046] The first coupling relationship, the second coupling relationship, the third coupling relationship and the fourth scanning period can be set according to actual design. For example (but not limited to this), during the first scanning period, the routing circuit 130_1 couples the output end of the driving channel DC51 to the first data line in the first data line group of the self-luminous display panel 10, couples the output end of the driving channel DC52 to the second data line in the first data line group of the self-luminous display panel 10, couples the output end of the driving channel DC53 to the third data line in the first data line group of the self-luminous display panel 10, and couples the output end of the driving channel DC54 to the fourth data line in the first data line group of the self-luminous display panel 10. During the second scanning period, the routing circuit 130_1 couples the output end of the driving channel DC51 to the fourth data line in the first data line group of the self-luminous display panel 10, couples the output end of the driving channel DC52 to the first data line in the first data line group of the self-luminous display panel 10, couples the output end of the driving channel DC53 to the second data line in the first data line group of the self-luminous display panel 10, and couples the output end of the driving channel DC54 to the third data line in the first data line group of the self-luminous display panel 10. During the third scanning period, the routing circuit 130_1 couples the output end of the driving channel DC51 to the third data line in the first data line group of the self-luminous display panel 10, couples the output end of the driving channel DC52 to the fourth data line in the first data line group of the self-luminous display panel 10, couples the output end of the driving channel DC53 to the first data line in the first data line group of the self-luminous display panel 10, and couples the output end of the driving channel DC54 to the second data line in the first data line group of the self-luminous display panel 10. During the fourth scan, the routing circuit 130_1 couples the output end of the driving channel DC51 to the second data line in the first data line group of the self-luminous display panel 10, couples the output end of the driving channel DC52 to the third data line in the first data line group of the self-luminous display panel 10, couples the output end of the driving channel DC53 to the fourth data line in the first data line group of the self-luminous display panel 10, and couples the output end of the driving channel DC54 to the first data line in the first data line group of the self-luminous display panel 10.

[0047] exist Figure 5In the illustrated embodiment, the routing circuit 130_1 includes a switch SW501, a switch SW502, a switch SW503, a switch SW504, a switch SW505, a switch SW506, a switch SW507, a switch SW508, a switch SW509, a switch SW510, a switch SW511, a switch SW512, a switch SW513, a switch SW514, a switch SW515, and a switch SW516. A first end of the switch SW501 is coupled to an output end of the driving channel DC51. A second end of the switch SW501 is coupled to a first data line in a first data line group of the self-luminous display panel 10. A first end of the switch SW502 is coupled to an output end of the driving channel DC51. A second end of the switch SW502 is coupled to a second data line in a first data line group of the self-luminous display panel 10. A first end of the switch SW503 is coupled to an output end of the driving channel DC51. A second end of the switch SW503 is coupled to a third data line in a first data line group of the self-luminous display panel 10. A first end of the switch SW504 is coupled to an output end of the driving channel DC51. A second end of the switch SW504 is coupled to a fourth data line in the first data line group of the self-luminous display panel 10. A first end of the switch SW505 is coupled to an output end of the driving channel DC52. A second end of the switch SW505 is coupled to a first data line in the first data line group of the self-luminous display panel 10. A first end of the switch SW506 is coupled to an output end of the driving channel DC52. A second end of the switch SW506 is coupled to a second data line in the first data line group of the self-luminous display panel 10. A first end of the switch SW507 is coupled to an output end of the driving channel DC52. A second end of the switch SW507 is coupled to a third data line in the first data line group of the self-luminous display panel 10. A first end of the switch SW508 is coupled to an output end of the driving channel DC52. A second end of the switch SW508 is coupled to a fourth data line in the first data line group of the self-luminous display panel 10. A first end of the switch SW509 is coupled to an output end of the driving channel DC53. The second end of the switch SW509 is coupled to the first data line in the first data line group of the self-luminous display panel 10. The first end of the switch SW510 is coupled to the output end of the driving channel DC53. The second end of the switch SW510 is coupled to the second data line in the first data line group of the self-luminous display panel 10. The first end of the switch SW511 is coupled to the output end of the driving channel DC53. The second end of the switch SW511 is coupled to the third data line in the first data line group of the self-luminous display panel 10. The first end of the switch SW512 is coupled to the output end of the driving channel DC53. The second end of the switch SW512 is coupled to the fourth data line in the first data line group of the self-luminous display panel 10. The first end of the switch SW513 is coupled to the output end of the driving channel DC54. The second end of the switch SW513 is coupled to the first data line in the first data line group of the self-luminous display panel 10.A first end of the switch SW514 is coupled to the output end of the driving channel DC54. A second end of the switch SW514 is coupled to the second data line in the first data line group of the self-luminous display panel 10. A first end of the switch SW515 is coupled to the output end of the driving channel DC54. A second end of the switch SW515 is coupled to the third data line in the first data line group of the self-luminous display panel 10. A first end of the switch SW516 is coupled to the output end of the driving channel DC54. A second end of the switch SW516 is coupled to the fourth data line in the first data line group of the self-luminous display panel 10.

[0048] During the first scanning period, switches SW501, SW506, SW511 and SW516 are turned on, and switches SW502, SW503, SW504, SW505, SW507, SW508, SW509, SW510, SW512, SW513, SW514 and SW515 are turned off. During the second scanning period, switches SW504, SW505, SW510 and SW515 are turned on, and switches SW501, SW502, SW503, SW506, SW507, SW508, SW509, SW511, SW512, SW513, SW514 and SW516 are turned off. During the third scanning period, switches SW503, SW508, SW509 and SW514 are turned on, and switches SW501, SW502, SW504, SW505, SW506, SW507, SW510, SW511, SW512, SW513, SW515 and SW516 are turned off. During the fourth scanning period, switches SW502, SW507, SW512 and SW513 are turned on, and switches SW501, SW503, SW504, SW505, SW506, SW508, SW509, SW510, SW511, SW514, SW515 and SW516 are turned off. Next, the operation during the (4*i+1)th scanning period can refer to the relevant instructions during the first scanning period (i is a positive integer greater than 0), the operation during the (4*i+2)th scanning period can refer to the relevant instructions during the second scanning period, the operation during the (4*i+3)th scanning period can refer to the relevant instructions during the third scanning period, and the operation during the (4*i+4)th scanning period can refer to the relevant instructions during the fourth scanning period, so they will not be repeated here.

[0049] In summary, the above embodiments can use multiple gamma voltage circuits to generate multiple sets of gamma voltages based on actual design. Ideally, the multiple sets of gamma voltages are no different from each other. Different gamma voltage circuits can supply gamma voltages to different driving channels. Based on this, although the number of driving channels (load circuits) is large, the above embodiments can reduce the output load of each gamma voltage circuit by increasing the number of gamma voltage circuits, thereby reducing the disturbance of the driving channel to the gamma voltage.

[0050] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A driving device for a self-luminous display panel, characterized in that: The driving device comprises: a plurality of gamma voltage circuits, wherein each gamma voltage circuit generates a gamma voltage group; a first driving channel group, wherein each driving channel in the first driving channel group is coupled to a corresponding gamma voltage circuit of the plurality of gamma voltage circuits to receive a corresponding gamma voltage group, and each driving channel in the first driving channel group converts corresponding sub-pixel data into a corresponding grayscale voltage based on the corresponding gamma voltage group; and A first routing circuit is coupled to the output end of each driving channel in the first driving channel group to receive the corresponding grayscale voltage, wherein the first routing circuit dynamically changes the coupling relationship between different driving channels in the first driving channel group and different data lines in the first data line group of the self-luminous display panel during different scanning periods.

2. The driving device according to claim 1, characterized in that: The plurality of gamma voltage circuits include a first gamma voltage circuit and a second gamma voltage circuit, the first driving channel group includes a first driving channel and a second driving channel, the first driving channel is coupled to the first gamma voltage circuit to receive the first gamma voltage group, and the second driving channel is coupled to the second gamma voltage circuit to receive the second gamma voltage group, During a first scan period, the first routing circuit couples an output end of the first driving channel to a first data line in the first data line group, and couples an output end of the second driving channel to a second data line in the first data line group; as well as During a second scanning period after the first scanning period, the first routing circuit couples the output end of the first driving channel to the second data line, and couples the output end of the second driving channel to the first data line.

3. The driving device according to claim 2, characterized in that: The first routing circuit comprises: A first switch having a first end coupled to the output end of the first driving channel, wherein a second end of the first switch is coupled to the first data line in the first data line group of the self-luminous display panel; A second switch having a first end coupled to the output end of the first driving channel, wherein a second end of the second switch is coupled to the second data line in the first data line group of the self-luminous display panel; A third switch having a first end coupled to the output end of the second driving channel, wherein a second end of the third switch is coupled to the first data line in the first data line group of the self-luminous display panel; and a fourth switch having a first end coupled to the output end of the second driving channel, wherein a second end of the fourth switch is coupled to the second data line in the first data line group of the self-luminous display panel, During the first scanning period, the first switch and the fourth switch are turned on and the second switch and the third switch are turned off, and during the second scanning period, the first switch and the fourth switch are turned off and the second switch and the third switch are turned on.

4. The driving device according to claim 1, characterized in that: The plurality of gamma voltage circuits include a first gamma voltage circuit, a second gamma voltage circuit, and a third gamma voltage circuit, the first driving channel group includes a first driving channel, a second driving channel, and a third driving channel, the first driving channel is coupled to the first gamma voltage circuit to receive the first gamma voltage group, the second driving channel is coupled to the second gamma voltage circuit to receive the second gamma voltage group, and the third driving channel is coupled to the third gamma voltage circuit to receive the third gamma voltage group, During a first scanning period, the first routing circuit couples the output end of the first driving channel, the output end of the second driving channel and the output end of the third driving channel to the first data line, the second data line and the third data line in the first data line group in a one-to-one manner based on a first coupling relationship; During a second scanning period after the first scanning period, the first routing circuit couples the output ends of the first driving channel, the second driving channel, and the third driving channel to the first data line, the second data line, and the third data line in a one-to-one manner based on a second coupling relationship different from the first coupling relationship; as well as During a third scanning period after the second scanning period, the first routing circuit couples the output ends of the first drive channel, the second drive channel, and the third drive channel to the first data line, the second data line, and the third data line in a one-to-one manner based on a third coupling relationship different from the first coupling relationship and the second coupling relationship.

5. The driving device according to claim 4, characterized in that: During the first scan period, the first routing circuit couples the output end of the first driving channel to the first data line, couples the output end of the second driving channel to the second data line, and couples the output end of the third driving channel to the third data line; During the second scan period, the first routing circuit couples the output end of the first driving channel to the third data line, couples the output end of the second driving channel to the first data line, and couples the output end of the third driving channel to the second data line; as well as During the third scan period, the first routing circuit couples the output end of the first driving channel to the second data line, couples the output end of the second driving channel to the third data line, and couples the output end of the third driving channel to the first data line.

6. The driving device according to claim 4, characterized in that: The first routing circuit comprises: A first switch having a first end coupled to the output end of the first driving channel, wherein a second end of the first switch is coupled to the first data line in the first data line group of the self-luminous display panel; A second switch having a first end coupled to the output end of the first driving channel, wherein a second end of the second switch is coupled to the second data line in the first data line group of the self-luminous display panel; A third switch having a first end coupled to the output end of the first driving channel, wherein a second end of the third switch is coupled to the third data line in the first data line group of the self-luminous display panel; a fourth switch having a first end coupled to the output end of the second driving channel, wherein a second end of the fourth switch is coupled to the first data line in the first data line group of the self-luminous display panel; a fifth switch having a first end coupled to the output end of the second driving channel, wherein a second end of the fifth switch is coupled to the second data line in the first data line group of the self-luminous display panel; a sixth switch having a first end coupled to the output end of the second driving channel, wherein a second end of the sixth switch is coupled to the third data line in the first data line group of the self-luminous display panel; a seventh switch having a first end coupled to the output end of the third driving channel, wherein a second end of the seventh switch is coupled to the first data line in the first data line group of the self-luminous display panel; an eighth switch having a first end coupled to the output end of the third driving channel, wherein a second end of the eighth switch is coupled to the second data line in the first data line group of the self-luminous display panel; and A ninth switch has a first end coupled to the output end of the third driving channel, wherein a second end of the ninth switch is coupled to the third data line in the first data line group of the self-luminous display panel.

7. The driving device according to claim 6, characterized in that: During the first scanning period, the first switch, the fifth switch and the ninth switch are turned on, and the second switch, the third switch, the fourth switch, the sixth switch, the seventh switch and the eighth switch are turned off; During the second scanning period, the third switch, the fourth switch and the eighth switch are turned on, and the first switch, the second switch, the fifth switch, the sixth switch, the seventh switch and the ninth switch are turned off; and During the third scanning period, the second switch, the sixth switch, and the seventh switch are turned on, and the first switch, the third switch, the fourth switch, the fifth switch, the eighth switch, and the ninth switch are turned off.

8. The driving device according to claim 1, characterized in that: The plurality of gamma voltage circuits include a first gamma voltage circuit, a second gamma voltage circuit, a third gamma voltage circuit, and a fourth gamma voltage circuit, the first driving channel group includes a first driving channel, a second driving channel, a third driving channel, and a fourth driving channel, the first driving channel is coupled to the first gamma voltage circuit to receive the first gamma voltage group, the second driving channel is coupled to the second gamma voltage circuit to receive the second gamma voltage group, the third driving channel is coupled to the third gamma voltage circuit to receive the third gamma voltage group, and the fourth driving channel is coupled to the fourth gamma voltage circuit to receive the fourth gamma voltage group, During a first scanning period, the first routing circuit couples the output end of the first driving channel, the output end of the second driving channel, the output end of the third driving channel and the output end of the fourth driving channel to the first data line, the second data line, the third data line and the fourth data line in the first data line group in a one-to-one manner based on a first coupling relationship; During a second scanning period after the first scanning period, the first routing circuit couples the output ends of the first driving channel, the second driving channel, the third driving channel, and the fourth driving channel to the first data line, the second data line, the third data line, and the fourth data line in a one-to-one manner based on a second coupling relationship different from the first coupling relationship; During a third scanning period after the second scanning period, the first routing circuit couples the output ends of the first driving channel, the second driving channel, the third driving channel, and the fourth driving channel to the first data line, the second data line, the third data line, and the fourth data line in a one-to-one manner based on a third coupling relationship different from the first coupling relationship and the second coupling relationship; as well as During a fourth scanning period after the third scanning period, the first routing circuit couples the output ends of the first drive channel, the second drive channel, the third drive channel, and the fourth drive channel to the first data line, the second data line, the third data line, and the fourth data line in a one-to-one manner based on a fourth coupling relationship that is different from the first coupling relationship, the second coupling relationship, and the third coupling relationship.

9. The driving device according to claim 8, characterized in that: During the first scan period, the first routing circuit couples the output end of the first driving channel to the first data line, couples the output end of the second driving channel to the second data line, couples the output end of the third driving channel to the third data line, and couples the output end of the fourth driving channel to the fourth data line; During the second scanning period, the first routing circuit couples the output end of the first driving channel to the fourth data line, couples the output end of the second driving channel to the first data line, couples the output end of the third driving channel to the second data line, and couples the output end of the fourth driving channel to the third data line; During the third scan period, the first routing circuit couples the output end of the first driving channel to the third data line, couples the output end of the second driving channel to the fourth data line, couples the output end of the third driving channel to the first data line, and couples the output end of the fourth driving channel to the second data line; as well as During the fourth scan period, the first routing circuit couples the output end of the first drive channel to the second data line, couples the output end of the second drive channel to the third data line, couples the output end of the third drive channel to the fourth data line, and couples the output end of the fourth drive channel to the first data line.

10. The driving device according to claim 8, characterized in that: The first routing circuit comprises: A first switch having a first end coupled to the output end of the first driving channel, wherein a second end of the first switch is coupled to the first data line in the first data line group of the self-luminous display panel; A second switch having a first end coupled to the output end of the first driving channel, wherein a second end of the second switch is coupled to the second data line in the first data line group of the self-luminous display panel; A third switch having a first end coupled to the output end of the first driving channel, wherein a second end of the third switch is coupled to the third data line in the first data line group of the self-luminous display panel; a fourth switch having a first end coupled to the output end of the first driving channel, wherein a second end of the fourth switch is coupled to the fourth data line in the first data line group of the self-luminous display panel; a fifth switch having a first end coupled to the output end of the second driving channel, wherein a second end of the fifth switch is coupled to the first data line in the first data line group of the self-luminous display panel; a sixth switch having a first end coupled to the output end of the second driving channel, wherein a second end of the sixth switch is coupled to the second data line in the first data line group of the self-luminous display panel; a seventh switch having a first end coupled to the output end of the second driving channel, wherein a second end of the seventh switch is coupled to the third data line in the first data line group of the self-luminous display panel; an eighth switch, having a first end coupled to the output end of the second driving channel, wherein a second end of the eighth switch is coupled to the fourth data line in the first data line group of the self-luminous display panel; a ninth switch, having a first end coupled to the output end of the third driving channel, wherein a second end of the ninth switch is coupled to the first data line in the first data line group of the self-luminous display panel; a tenth switch having a first end coupled to the output end of the third driving channel, wherein a second end of the tenth switch is coupled to the second data line in the first data line group of the self-luminous display panel; an eleventh switch, having a first end coupled to the output end of the third driving channel, wherein a second end of the eleventh switch is coupled to the third data line in the first data line group of the self-luminous display panel; A twelfth switch, having a first end coupled to the output end of the third driving channel, wherein a second end of the twelfth switch is coupled to the fourth data line in the first data line group of the self-luminous display panel; A thirteenth switch, having a first end coupled to the output end of the fourth driving channel, wherein a second end of the thirteenth switch is coupled to the first data line in the first data line group of the self-luminous display panel; A fourteenth switch, having a first end coupled to the output end of the fourth driving channel, wherein a second end of the fourteenth switch is coupled to the second data line in the first data line group of the self-luminous display panel; a fifteenth switch having a first end coupled to the output end of the fourth driving channel, wherein a second end of the fifteenth switch is coupled to the third data line in the first data line group of the self-luminous display panel; and A sixteenth switch has a first end coupled to the output end of the fourth driving channel, wherein a second end of the sixteenth switch is coupled to the fourth data line in the first data line group of the self-luminous display panel.

11. The driving device according to claim 10, characterized in that: During the first scanning period, the first switch, the sixth switch, the eleventh switch, and the sixteenth switch are turned on, and the second switch, the third switch, the fourth switch, the fifth switch, the seventh switch, the eighth switch, the ninth switch, the tenth switch, the twelfth switch, the thirteenth switch, the fourteenth switch, and the fifteenth switch are turned off; During the second scanning period, the fourth switch, the fifth switch, the tenth switch, and the fifteenth switch are turned on, and the first switch, the second switch, the third switch, the sixth switch, the seventh switch, the eighth switch, the ninth switch, the eleventh switch, the twelfth switch, the thirteenth switch, the fourteenth switch, and the sixteenth switch are turned off; During the third scanning period, the third switch, the eighth switch, the ninth switch, and the fourteenth switch are turned on, and the first switch, the second switch, the fourth switch, the fifth switch, the sixth switch, the seventh switch, the tenth switch, the eleventh switch, the twelfth switch, the thirteenth switch, the fifteenth switch, and the sixteenth switch are turned off; as well as During the fourth scan period, the second switch, the seventh switch, the twelfth switch, and the thirteenth switch are turned on, and the first switch, the third switch, the fourth switch, the fifth switch, the sixth switch, the eighth switch, the ninth switch, the tenth switch, the eleventh switch, the fourteenth switch, the fifteenth switch, and the sixteenth switch are turned off.

12. The driving device according to claim 1, characterized in that: Any one driving channel in the first driving channel group comprises: a digital-to-analog converter coupled to a corresponding one of the plurality of gamma voltage circuits to receive a corresponding gamma voltage set; and A buffer has an input terminal coupled to the output terminal of the digital-to-analog converter, wherein the output terminal of the buffer is coupled to the routing circuit.

13. The driving device according to claim 1, characterized in that: The driving device further comprises: a second driving channel group, wherein each driving channel in the second driving channel group is coupled to a corresponding gamma voltage circuit of the plurality of gamma voltage circuits to receive a corresponding gamma voltage group, and each driving channel in the second driving channel group converts corresponding sub-pixel data into a corresponding grayscale voltage based on the corresponding gamma voltage group; and A second routing circuit is coupled to the output end of each driving channel in the second driving channel group, wherein the second routing circuit dynamically changes the coupling relationship between different driving channels in the second driving channel group and different data lines in the second data line group of the self-luminous display panel during different scanning periods.

14. A method for operating a driving device, characterized in that: The operation method comprises: Providing a plurality of gamma voltage circuits, a first driving channel group, and a first routing circuit, wherein each gamma voltage circuit generates a gamma voltage group, and each driving channel in the first driving channel group is coupled to a corresponding gamma voltage circuit in the plurality of gamma voltage circuits to receive the corresponding gamma voltage group; converting corresponding sub-pixel data into corresponding grayscale voltages based on the corresponding gamma voltage group by each driving channel in the first driving channel group, wherein the first routing circuit is coupled to an output terminal of each driving channel in the first driving channel group to receive the corresponding grayscale voltage; and The first routing circuit dynamically changes the coupling relationship between different driving channels in the first driving channel group and different data lines in the first data line group of the self-luminous display panel during different scanning periods.

15. The operating method according to claim 14, characterized in that: The plurality of gamma voltage circuits include a first gamma voltage circuit and a second gamma voltage circuit, the first driving channel group includes a first driving channel and a second driving channel, the first driving channel is coupled to the first gamma voltage circuit to receive the first gamma voltage group, the second driving channel is coupled to the second gamma voltage circuit to receive the second gamma voltage group, and the operating method further includes: During a first scanning period, the first routing circuit couples an output end of the first driving channel to a first data line in the first data line group, and couples an output end of the second driving channel to a second data line in the first data line group; and In a second scanning period after the first scanning period, the first routing circuit couples the output end of the first driving channel to the second data line, and couples the output end of the second driving channel to the first data line.

16. The operating method according to claim 14, characterized in that: The plurality of gamma voltage circuits include a first gamma voltage circuit, a second gamma voltage circuit, and a third gamma voltage circuit, the first driving channel group includes a first driving channel, a second driving channel, and a third driving channel, the first driving channel is coupled to the first gamma voltage circuit to receive the first gamma voltage group, the second driving channel is coupled to the second gamma voltage circuit to receive the second gamma voltage group, the third driving channel is coupled to the third gamma voltage circuit to receive the third gamma voltage group, and the operating method further includes: During a first scanning period, the first routing circuit couples the output end of the first driving channel, the output end of the second driving channel and the output end of the third driving channel to the first data line, the second data line and the third data line in the first data line group in a one-to-one manner based on a first coupling relationship; In a second scanning period after the first scanning period, the first routing circuit couples the output ends of the first driving channel, the second driving channel, and the third driving channel to the first data line, the second data line, and the third data line in a one-to-one manner based on a second coupling relationship different from the first coupling relationship; and During a third scanning period after the second scanning period, the first routing circuit couples the output ends of the first driving channel, the second driving channel, and the third driving channel to the first data line, the second data line, and the third data line in a one-to-one manner based on a third coupling relationship different from the first coupling relationship and the second coupling relationship.

17. The operating method according to claim 16, characterized in that: The operation method also includes: During the first scanning period, the first routing circuit couples the output end of the first driving channel to the first data line, couples the output end of the second driving channel to the second data line, and couples the output end of the third driving channel to the third data line; During the second scanning period, the first routing circuit couples the output end of the first driving channel to the third data line, couples the output end of the second driving channel to the first data line, and couples the output end of the third driving channel to the second data line; and During the third scan period, the first routing circuit couples the output end of the first driving channel to the second data line, couples the output end of the second driving channel to the third data line, and couples the output end of the third driving channel to the first data line.

18. The operating method according to claim 14, characterized in that: The plurality of gamma voltage circuits include a first gamma voltage circuit, a second gamma voltage circuit, a third gamma voltage circuit, and a fourth gamma voltage circuit, the first driving channel group includes a first driving channel, a second driving channel, a third driving channel, and a fourth driving channel, the first driving channel is coupled to the first gamma voltage circuit to receive the first gamma voltage group, the second driving channel is coupled to the second gamma voltage circuit to receive the second gamma voltage group, the third driving channel is coupled to the third gamma voltage circuit to receive the third gamma voltage group, the fourth driving channel is coupled to the fourth gamma voltage circuit to receive the fourth gamma voltage group, and the operating method further includes: During a first scanning period, the first routing circuit couples the output end of the first driving channel, the output end of the second driving channel, the output end of the third driving channel, and the output end of the fourth driving channel to the first data line, the second data line, the third data line, and the fourth data line in the first data line group in a one-to-one manner based on a first coupling relationship; During a second scanning period after the first scanning period, the first routing circuit couples the output ends of the first driving channel, the second driving channel, the third driving channel, and the fourth driving channel to the first data line, the second data line, the third data line, and the fourth data line in a one-to-one manner based on a second coupling relationship different from the first coupling relationship; During a third scanning period after the second scanning period, the first routing circuit couples the output ends of the first driving channel, the second driving channel, the third driving channel, and the fourth driving channel to the first data line, the second data line, the third data line, and the fourth data line in a one-to-one manner based on a third coupling relationship different from the first coupling relationship and the second coupling relationship; and During a fourth scanning period after the third scanning period, the first routing circuit couples the output ends of the first drive channel, the second drive channel, the third drive channel, and the fourth drive channel to the first data line, the second data line, the third data line, and the fourth data line in a one-to-one manner based on a fourth coupling relationship that is different from the first coupling relationship, the second coupling relationship, and the third coupling relationship.

19. The operating method according to claim 18, characterized in that: The operation method also includes: During the first scanning period, the first routing circuit couples the output end of the first driving channel to the first data line, couples the output end of the second driving channel to the second data line, couples the output end of the third driving channel to the third data line, and couples the output end of the fourth driving channel to the fourth data line; During the second scanning period, the first routing circuit couples the output end of the first driving channel to the fourth data line, couples the output end of the second driving channel to the first data line, couples the output end of the third driving channel to the second data line, and couples the output end of the fourth driving channel to the third data line; During the third scanning period, the first routing circuit couples the output end of the first driving channel to the third data line, couples the output end of the second driving channel to the fourth data line, couples the output end of the third driving channel to the first data line, and couples the output end of the fourth driving channel to the second data line; and During the fourth scan period, the first routing circuit couples the output end of the first drive channel to the second data line, couples the output end of the second drive channel to the third data line, couples the output end of the third drive channel to the fourth data line, and couples the output end of the fourth drive channel to the first data line.

20. The operating method according to claim 14, characterized in that: The operation method also includes: providing a second driving channel group and a second routing circuit, wherein each driving channel in the second driving channel group is coupled to a corresponding gamma voltage circuit of the plurality of gamma voltage circuits to receive the corresponding gamma voltage group; converting corresponding sub-pixel data into corresponding grayscale voltages based on the corresponding gamma voltage group by each driving channel in the second driving channel group, wherein the second routing circuit is coupled to an output terminal of each driving channel in the second driving channel group; and The second routing circuit dynamically changes the coupling relationship between different driving channels in the second driving channel group and different data lines in the second data line group of the self-luminous display panel during different scanning periods.

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