Driving structure, display module, electronic equipment and driving method

Abstract

The invention relates to a driving structure, a display module, an electronic device and a driving method, the driving structure comprises a pixel array, the pixel array comprises a plurality of pixel units, and each pixel unit comprises a driving element; the grid signal line is connected with the grid of the driving element; the at least one group of coupling signal lines pass through the corresponding pixel units, at least part of projections of the coupling signal lines to the grid signal lines are located on the grid signal lines, and under the condition that the grid signal lines and the coupling signal lines are powered on, the projection positions are coupled to form capacitors. According to the invention, at least one group of coupling signal lines is added, and the projection of the coupling signal lines to the gate signal lines of the driving element is at least partially located on the gate signal lines, so that the coupling capacitance is formed when the projection position is electrified, and the adjustment of the light-emitting brightness is realized through the coupling capacitance.

Description

Technical Field

[0001] The present disclosure relates to the display field, and in particular to a driving structure, a display module, an electronic device and a driving method. Background Art

[0002] Organic Light-Emitting Diode (OLED) display is a self-luminous display that emits light by exciting organic compounds. In recent years, OLED displays have been widely used in mobile phones, tablets, laptops and other products of different sizes. With the development of terminal applications, displays also need to meet more requirements, such as high brightness, especially when used outdoors in strong sunlight, or some high dynamic range imaging (HDR), video and HDR photo applications. Users often hope that the display can achieve higher global maximum brightness and peak brightness.

[0003] The maximum brightness that an OLED display can achieve depends on the efficiency of the light-emitting material and the current that the driving transistor can provide. However, the current of the driving transistor depends on the gate voltage of the transistor, which is written by the data voltage of the data signal line. The data voltage is limited by the voltage provided by the driving chip, and its range is usually 0.5V-7V. When the data voltage reaches the lower limit, the maximum brightness of the display is reached, and it is difficult to further increase the maximum brightness. Summary of the invention

[0004] The present disclosure provides a driving structure, a display module, an electronic device and a driving method to overcome the problem that the maximum brightness of a display screen is difficult to further increase.

[0005] According to a first aspect of an embodiment of the present disclosure, there is provided a driving structure, including:

[0006] A pixel array, the pixel array comprising: a plurality of pixel units, the pixel units comprising: a driving element; a gate signal line connected to the gate of the driving element; at least one group of coupling signal lines passing through the corresponding pixel units, and at least part of the projection of the coupling signal line to the gate signal line is located on the gate signal line, and when the gate signal line and the coupling signal line are energized, the coupling signal line at the projected position is coupled with the gate signal line to form a capacitor.

[0007] In some embodiments, the coupling signal line extends along the row direction of the pixel array and passes through the corresponding pixel units in the corresponding row of the pixel array; wherein at least a portion of the coupling signal line projected onto the gate signal line of the corresponding pixel unit in the corresponding row is located on the gate signal line.

[0008] In some embodiments, the driving structure also includes: a plurality of scanning signal lines, which are located in the same circuit layer as at least one group of the coupling signal lines, and the scanning signal lines are connected to the pixel units of corresponding rows in the pixel array and are configured to transmit scanning signals to the pixel units; wherein each group of the coupling signal lines is arranged alternately with each of the scanning signal lines.

[0009] In some embodiments, the driving structure also includes: a plurality of scanning signal lines, which are located in a different circuit layer from at least one group of the coupling signal lines, and the scanning signal lines are connected to the pixel units of corresponding rows in the pixel array and are configured to transmit scanning signals to the pixel units; wherein the projections of the coupling signal lines corresponding to the pixel units in the same row onto the scanning signal lines are all located on the scanning signal lines; or, the projections of the coupling signal lines corresponding to the pixel units in the same row onto the scanning signal lines are at least partially located outside the scanning signal lines.

[0010] In some embodiments, the coupling signal line extends along the column direction of the pixel array and passes through the corresponding pixel unit in the corresponding column of the pixel array; wherein at least a portion of the coupling signal line projected onto the gate signal line of the corresponding pixel unit in the corresponding column is located on the gate signal line.

[0011] In some embodiments, the driving structure also includes: a plurality of data signal lines, which are located in the same circuit layer as at least one group of the coupling signal lines, and the data signal lines are connected to the pixel units of corresponding columns in the pixel array and are configured to transmit data signals to the pixel units; wherein each group of the coupling signal lines is arranged alternately with each of the data signal lines.

[0012] In some embodiments, the driving structure also includes: a plurality of data signal lines, which are located in a different circuit layer from at least one group of the coupling signal lines, and the data signal lines are connected to the pixel units in the corresponding columns in the pixel array and are configured to transmit data signals to the pixel units; wherein the projections of the coupling signal lines corresponding to the pixel units in the same column onto the data signal lines are all located on the data signal lines; or, the projections of the coupling signal lines corresponding to the pixel units in the same column onto the data signal lines are at least partially located outside the data signal lines.

[0013] In some embodiments, each group of the coupled signal lines includes at least one coupled signal line; wherein at least a portion of a projection of at least one coupled signal line in each group onto the gate signal line is located on the gate signal line.

[0014] In some embodiments, the driving structure also includes: a plurality of enable signal lines, the enable signal lines being connected to the pixel units of corresponding rows in the pixel array; a switching element, connected to the enable signal lines and the driving elements, configured to be turned on based on the enable signal transmitted by the enable signal lines, and transmit the power signal to the driving elements.

[0015] According to a second aspect of an embodiment of the present disclosure, there is provided a display module, including:

[0016] The driving structure in the first aspect mentioned above further includes: a light-emitting element connected to the driving element and configured to emit light under the drive of the driving element.

[0017] In some embodiments, the display module further includes: a scan driving circuit connected to the scan signal line and configured to transmit a scan signal through the scan signal line; wherein the scan driving circuit is a bilateral driving circuit.

[0018] In some embodiments, the display module further includes: an enable drive circuit connected to the enable signal line and configured to transmit an enable signal to the enable signal line; wherein the enable drive circuit is a unilateral drive circuit.

[0019] In some embodiments, the display module further includes: a coupling drive circuit connected to the coupling signal line and configured to transmit a coupling signal to the coupling signal line; the coupling drive circuit is a unilateral drive circuit.

[0020] According to a third aspect of an embodiment of the present disclosure, an electronic device is provided, comprising the display module in the second aspect.

[0021] According to a fourth aspect of an embodiment of the present disclosure, a driving method is provided, which is applied to the display module in the above-mentioned second aspect, and the method includes: transmitting a coupling signal through the coupling signal line; and adjusting the light emitting brightness of the light emitting element in the display module based on the coupling signal when the gate signal line is energized.

[0022] In some embodiments, after the light-emitting phase of the previous cycle of the display module ends and before entering the reset phase of the current cycle, a first coupling signal is sent to the driving structure through the coupling signal line; wherein the first coupling signal is configured to increase the gate voltage of the driving element; after the display module enters the compensation phase of the current cycle and before entering the light-emitting phase of the current cycle, a second coupling signal is sent to the pixel driving structure through the coupling signal line; wherein the second coupling signal is configured to reduce the gate voltage of the driving element; after sending the second coupling signal, an enable signal is sent to the driving structure through the enable signal line to drive the light-emitting element to emit light, so that the display module enters the light-emitting phase of the current cycle; wherein the light-emitting brightness of the light-emitting element is related to the gate voltage of the driving element.

[0023] In some embodiments, adjusting the light emitting brightness of the light emitting element in the display module based on the coupling signal includes: adjusting the light emitting brightness of the light emitting element by adjusting the voltage of the coupling signal.

[0024] The technical solution provided by the embodiments of the present disclosure may have the following beneficial effects:

[0025] The driving structure disclosed in the present invention includes a pixel array composed of multiple pixel units, a gate signal line and at least one group of coupling signal lines; each pixel unit includes a driving element, the gate of the driving element is connected to the gate signal line, and the projection of the coupling signal line to the gate signal line is at least partially located on the gate signal line, that is, the coupling signal line and the gate signal line are in different circuit layers in three-dimensional space and the two are at least partially stacked, and the projection position is coupled to form a capacitor when powered on, and the capacitor can adjust the gate voltage of the driving element under the coupling effect, and adjusting the gate voltage can adjust the driving current of the driving element to the light-emitting element, and finally realize the adjustment of the light-emitting brightness of the light-emitting element. In this way, under the same voltage limit range of the driving chip, the present invention can achieve higher brightness, thereby achieving better display effects.

[0026] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0028] Figure 1 is a schematic diagram of a driving structure according to an exemplary embodiment Figure 1 .

[0029] Figure 2is a schematic diagram of a driving structure according to an exemplary embodiment Figure 2 .

[0030] Figure 3 is a schematic diagram of a layout of a single pixel unit according to an exemplary embodiment.

[0031] Figure 4 According to an exemplary embodiment, Figure 3 The corresponding circuit diagram of a single pixel unit.

[0032] Figure 5 It is a schematic structural diagram of a display module according to an exemplary embodiment.

[0033] Figure 6 The figure is a schematic diagram showing a driving method of a display module according to an exemplary embodiment.

[0034] Figure 7 A driving method flow chart according to an exemplary embodiment is shown as follows Figure 1 .

[0035] Figure 8 A driving method flow chart according to an exemplary embodiment is shown as follows Figure 2 .

[0036] Fig. 9 is a signal timing diagram in a driving method according to an exemplary embodiment.

[0037] Description of Figure Numbers:

[0038] Display module 100, driving structure 10, light emitting element 20, scanning driving circuit 30, enabling driving circuit 40, coupling driving circuit 50, pixel array 11, pixel unit 110, driving element 111, gate signal line 12, coupling signal line 13, scanning signal line 14, data signal line 15, enabling signal line 16, switching element 17. DETAILED DESCRIPTION

[0039] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices and methods consistent with some aspects of the present disclosure as detailed in the appended claims.

[0040] In the specification, unless otherwise clearly stated, the terms "first" and "second" are used only to describe and distinguish constituent elements, and should not be understood as indicating an order. Unless otherwise clearly stated, the terms "connected", "fixed", etc. should be understood as having a broad meaning, including but not limited to directly, indirectly, detachably "connected", "fixed", etc.

[0041] The present disclosure provides a driving structure such as Figure 1 As shown, the driving structure 10 includes: a pixel array 11 , a gate signal line 12 and at least one group of coupling signal lines 13 .

[0042] The pixel array 11 includes a plurality of pixel units 110, and each pixel unit 110 includes a driving element 111. The driving element 111 is used to drive the light emitting element ( Figure 1 The number and device type of the light emitting elements (not shown) can be adjusted according to the light emitting power of the light emitting element, the application requirements of the overall circuit, the application scenario, etc. For example, in the OLED light emitting unit 7T1C driving architecture, the driving element 111 is a thin film transistor.

[0043] The gate signal line 12 is connected to the gate of the driving element 111. It should be noted that, for the driving element 111 of each pixel unit 110, the gate signal line 12 disclosed in the present invention is not only a metal line connected to the gate of the driving element 111, but can be broadly understood as any metal line that has a connection relationship with the gate of the driving element 111 can be considered as the gate signal line 12.

[0044] Among them, at least one group of coupling signal lines 13 passes through the corresponding pixel unit 110, and at least part of the projection of the coupling signal line 13 to the gate signal line 12 is located on the gate signal line 12. When the gate signal line 12 and the coupling signal line 13 are energized, coupling is performed at the projection position to form a capacitor.

[0045] Specifically, the number of coupling signal lines 13 (in groups), the setting direction, the corresponding relationship between the coupling signal lines 13 and the pixel units 110, etc. can be adjusted and set according to the number of pixel units that need to form coupling capacitors, the position relationship, the position direction of the gate signal line, and the arrangement layout of the pixel array, etc., and the present disclosure does not limit this. For example: Taking a 3*2 pixel array as an example, when all 6 pixel units need to form coupling capacitors to increase the luminous brightness, the first method is to set 2 groups of coupling signal lines in the row direction, and one group of coupling signal lines corresponds to 3 pixel units; the second method is to set 3 groups of coupling signal lines in the column direction, and one group of coupling signal lines corresponds to 2 pixel units.

[0046] For another example: in a 3*2 pixel array, when only the 1st row and 1st column pixel unit, the 1st row and 2nd column pixel unit, the 2nd row and 2nd column pixel unit and the 2nd row and 3rd column pixel unit need to form a coupling capacitor to improve the luminous brightness, in the first method, two groups of coupling signal lines can be set in the row direction, one group of coupling signal lines corresponds to the 1st row and 1st column pixel unit and the 1st row and 2nd column pixel unit, and the other group of coupling signal lines corresponds to the 2nd row and 2nd column pixel unit and the 2nd row and 3rd column pixel unit; in the second method, the first row is taken as one side and the direction of the second row is rotated 45°. A group of coupling signal lines is extended to pass through the 1st row and 1st column pixel unit and the 2nd row and 2nd column pixel unit, and at the same time, another group of coupling signal lines is extended in the direction of 45° rotated toward the first row with the second row as one side and passes through the 1st row and 2nd column pixel unit and the 2nd row and 3rd column pixel unit; thirdly, only one group of coupling signal lines can be set to pass through the 1st row and 1st column pixel unit, the 1st row and 2nd column pixel unit, the 2nd row and 2nd column pixel unit and the 2nd row and 3rd column pixel unit in sequence, that is, the group of coupling signal lines passes through each pixel unit in sequence through a bending setting.

[0047] Of course, the various coupling signal setting methods illustrated above must comply with the requirement that at least part of the projection of the coupling signal line 13 onto the gate signal line 12 is located on the gate signal line 12 .

[0048] It can be seen that even in the same case (the arrangement of the pixel array, the position direction of the gate signal line, the number of pixel units that need to form coupling capacitors and the position relationship are fixed), there are multiple ways to set the number of groups of coupling signal lines, the setting direction, and the corresponding relationship between each group of coupling signal lines and pixel units. Each group of coupling signal lines 13 can be extended or bent in any direction, and a group of coupling signal lines 13 can correspond to one pixel unit 110 or multiple pixel units 110.

[0049] In addition, the projection of the coupling signal line 13 to the gate signal line 12 is at least partially located on the gate signal line 12, that is, the coupling signal line 13 and the gate signal line 12 are in different circuit layers in three-dimensional space and the two are at least partially stacked. When the coupling signal line 13 and the gate signal line 12 are energized, a capacitor is formed due to coupling. Under the coupling effect, the capacitor can adjust the gate voltage of the driving element 111, and then adjust the driving current of the driving element 111 to the light-emitting element, and finally adjust the light-emitting brightness of the light-emitting element. In this way, within the same voltage limit range of the driving chip, the present disclosure can achieve higher brightness, thereby achieving better display effects.

[0050] In some embodiments, the coupling signal line 13 extends along the row direction of the pixel array 11 and passes through the corresponding pixel unit 110 in the corresponding row of the pixel array 11; at least a portion of the coupling signal line 13 projected onto the gate signal line 12 of the corresponding pixel unit 110 in the corresponding row is located on the gate signal line 12.

[0051] Specifically, the coupling signal line 13 can be set to pass through each pixel unit 110 of each row in the pixel array 11 or part of the pixel units 110 of each row, or can be set to pass through each pixel unit 110 of some rows in the pixel array 11 or part of the pixel units 110 of some rows. At the same time, the coupling signal line 13 and the gate signal line 12 of the corresponding row and the corresponding pixel unit can be coupled to form a capacitor when powered on. That is to say, this embodiment can adjust the brightness of each pixel unit in the pixel array, or only adjust the brightness of some pixel units in the pixel array.

[0052] In addition, the present embodiment can also adjust the capacitance value of the capacitor formed by coupling by adjusting the projection area and distance between the gate signal line 12 and the coupling signal line 13, thereby adjusting the luminous brightness. The larger the projection area, the larger the capacitance value, and the greater the luminous brightness. The smaller the distance, the larger the capacitance value, and the greater the luminous brightness.

[0053] Furthermore, if Figure 2 As shown, the driving structure 10 also includes: a plurality of scanning signal lines 14, which are located in the same circuit layer as at least one group of coupling signal lines 13, and the scanning signal lines 14 are connected to the pixel units 110 of the corresponding rows in the pixel array 11, and are configured to transmit scanning signals to the pixel units 110; wherein each group of coupling signal lines 13 and each scanning signal line 14 are arranged alternately.

[0054] In addition, multiple scanning signal lines 14 can also be located in different circuit layers with at least one group of coupling signal lines 13; wherein, the projections of the coupling signal lines 13 corresponding to the same row of pixel units 110 onto the scanning signal lines 14 are all located on the scanning signal lines 14; or, the projections of the coupling signal lines 13 corresponding to the same row of pixel units 110 onto the scanning signal lines 14 are at least partially located outside the scanning signal lines 14.

[0055] Specifically, when the coupling signal line 13 and the scanning signal line 14 are both arranged along the row direction, the two can be located in the same circuit layer or in different circuit layers. When the two are located in the same circuit layer, the coupling signal line 13 and the scanning signal line 14 are arranged alternately. When the two are located in different circuit layers, the projection of the coupling signal line 13 to the scanning signal line 14 can be completely located on the scanning signal line 14, the projection can also be partially located on the scanning signal line 14, or the projection can also not be located on the scanning signal line 14. That is, the two can be completely stacked, partially stacked, or not stacked in three-dimensional space.

[0056] When the coupling signal line 13 and the scanning signal line 14 are completely or partially stacked, the coupling signal line 13, the scanning signal line 14 and the gate signal line 12 are stacked with each other.

[0057] In addition, each scan line 14 is connected to each row of pixel units 110 in a one-to-one correspondence, and transmits a scan signal to each row of pixel units. For example, taking the OLED light-emitting unit 7T1C driving architecture as an example, for a pixel unit in a row, a scan signal line connects two thin-film transistors in the pixel unit, and the scan signal line transmits a scan signal to the two thin-film transistors in the pixel unit.

[0058] In some embodiments, the coupling signal line 13 extends along the column direction of the pixel array 11 and passes through the corresponding pixel unit 110 in the corresponding column of the pixel array 11 ; at least a portion of the coupling signal line 13 projected onto the gate signal line 12 of the corresponding pixel unit in the corresponding column is located on the gate signal line 12 .

[0059] Specifically, the coupling signal line 13 can be set to pass through each pixel unit 110 of each column in the pixel array 11 or part of the pixel units 110 of each column, and can also be set to pass through each pixel unit 110 of some rows and columns in the pixel array 11 or part of the pixel units 110 of some columns. At the same time, the coupling signal line 13 and the gate signal line 12 of the corresponding column and the corresponding pixel unit can be coupled to form a capacitor when powered on. That is to say, this embodiment can adjust the brightness of each pixel unit in the pixel array, or only adjust the brightness of some pixel units in the pixel array.

[0060] Furthermore, the driving structure 10 also includes: a plurality of data signal lines 15, which are located in the same circuit layer as at least one group of coupling signal lines 13, and the data signal lines 15 are connected to the pixel units 110 of the corresponding columns in the pixel array 11, and are configured to transmit data signals to the pixel units 110; wherein each group of coupling signal lines 13 and each data signal line 15 are arranged alternately.

[0061] In addition, the data signal line 15 can also be located in a different circuit layer from at least one group of coupling signal lines 13; wherein the projections of the coupling signal lines 13 corresponding to the same column of pixel units 110 onto the data signal line 15 are all located on the data signal line; or, the projections of the coupling signal lines 13 corresponding to the same column of pixel units 110 onto the data signal line 15 are at least partially located outside the data signal line 15.

[0062] Specifically, when the coupling signal line 13 and the data signal line 15 are both arranged along the column direction, the two can be located in the same circuit layer or in different circuit layers. When the two are located in the same circuit layer, the coupling signal line 13 and the data signal line 15 are arranged alternately. When the two are located in different circuit layers, the projection of the coupling signal line 13 to the data signal line 15 can be completely located on the data signal line 15, the projection can also be partially located on the data signal line 15, or the projection can also not be located on the data signal line 15. That is, the two can be completely stacked, partially stacked, or not stacked in three-dimensional space.

[0063] When the coupling signal line 13 and the data signal line 15 are completely or partially overlapped, the coupling signal line 13, the data signal line 15 and the gate signal line 12 are overlapped with each other.

[0064] In some embodiments, each group of coupling signal lines 13 includes at least one coupling signal line 13 ; wherein at least a portion of a projection of at least one coupling signal line 13 in each group onto the gate signal line 12 is located on the gate signal line 12 .

[0065] Specifically, each group of coupling signal lines 13 may include one coupling signal line 13 or multiple coupling signal lines 13. When only one coupling signal line 13 is included, the projection area with the gate signal line 12 can be increased by widening the coupling signal line 13, thereby increasing the capacitance value of the capacitor formed by the coupling of the coupling signal line 13 and the gate signal line 12, and finally achieving an improvement in the luminous brightness. When multiple coupling signal lines 13 are included, the multiple coupling signal lines 13 are respectively coupled with the gate signal line 12 to form multiple capacitors (that is, equivalent to widening the width of a single coupling signal line), and finally achieving an improvement in the luminous brightness.

[0066] In some embodiments, the driving structure 10 further includes: a plurality of enable signal lines 16 and a switch element 17. The enable signal line 16 is connected to the pixel unit 110 of the corresponding row in the pixel array 11; the switch element 17 is connected to the enable signal line 16 and the driving element 111, and is configured to be turned on based on the enable signal transmitted by the enable signal line 16, and transmit the power signal to the driving element 111.

[0067] Specifically, each enable signal line 16 is connected one-to-one with the switch element 17 in each row of pixel units 110, and transmits an enable signal to the switch element 17 to turn on the switch element 17. After turning on, the switch element transmits the power signal to the drive element 111, so that the drive element 111 drives the light-emitting element to emit light.

[0068] Figure 3Schematic diagram of the layout of a single pixel unit including a gate signal line 12, a coupling signal line 13, a scanning signal line 14, a data signal line 15 and an enable signal line 16. Other pixel units are arranged in the same manner to form a pixel array. n-1 is the previous scan signal line, S n is the current row scanning signal line, EM is the enable signal line, data is the data signal line, VI is the power signal line, T1 is the driving element, and T2-T7 are switching elements.

[0069] Figure 4 For Figure 3 The corresponding circuit diagram of a single pixel unit, the capacitance formed by the coupling of the gate signal line 12 and the coupling signal line 13 is equivalent to Figure 4 The capacitance C' in the coupling circuit has a capacitance value much smaller than the capacitance value of the storage capacitor Cst.

[0070] The present disclosure also provides a display module, such as Figure 5 As shown, the display module 100 includes: the driving structure 10 described in the above embodiment, and the display module 100 also includes:

[0071] The light emitting element 20 is connected to the driving element 111 and is configured to emit light under the driving of the driving element 111. The light emitting element may be an organic light emitting diode (OLED), a light emitting diode (LED), a light emitting diode array, and the like.

[0072] In some embodiments, the display module 100 further includes: a scan driving circuit 30 connected to the scan signal line 14 and configured to transmit a scan signal through the scan signal line 14; wherein the scan driving circuit 30 is a double-sided driving circuit.

[0073] In some embodiments, the display module 100 further includes: an enable driving circuit 40 connected to the enable signal line 16 and configured to transmit an enable signal to the enable signal line 16; wherein the enable driving circuit 40 is a unilateral driving circuit.

[0074] In some embodiments, the display module 100 further includes: a coupling driving circuit 50 connected to the coupling signal line 13 and configured to transmit a coupling signal to the coupling signal line 13; the coupling driving circuit 50 is a unilateral driving circuit.

[0075] In this embodiment, the double-sided driving circuit, that is, for the signal line in the row direction, there is a set of driving circuits on both the left and right sides to transmit signals to the signal line. The single-sided driving circuit is a set of driving circuits on either side of the left or right sides to transmit signals to the signal line. The single-sided driving has low cost and fast startup, while the double-sided driving has high efficiency and high reliability.

[0076] Specifically, Figure 6 As shown, if a coupling signal line 13 is provided for each row in the pixel array, a group of scanning driving circuits are provided on the left and right sides of the driving structure 10 in the row direction, a group of enabling driving circuits are provided on the left (or right), and a group of coupling driving circuits are provided on the right (left). Of course, if coupling signal lines are not provided for some rows in the pixel array, the enabling driving circuits corresponding to these rows can also be bilateral driving circuits, which can improve the driving efficiency and reliability of the enabling driving circuits.

[0077] The embodiment of the present disclosure further provides an electronic device, comprising the display module 100 described in the above embodiment.

[0078] Here, the electronic device may include a terminal device. The terminal device may include a mobile terminal and a fixed terminal, such as a mobile phone, a tablet computer, a PDA, a laptop computer, a desktop computer, a wearable device, a smart speaker, a TV, and a vehicle-mounted terminal. The fixed terminal may include a desktop computer, etc.

[0079] The present disclosure also provides a driving method, which is applied to the display module described in the above embodiment. Figure 7 As shown, the driving method includes:

[0080] Step 101: transmitting a coupled signal through a coupled signal line.

[0081] Step 102, when the gate signal line is powered on, adjusting the light emitting brightness of the light emitting element in the display module based on the coupling signal.

[0082] Specifically, the gate voltage of the driving element can be reduced by sending a coupling signal to increase the brightness of the light-emitting element. The lower the gate voltage, the greater the current driving the light-emitting element and the higher the brightness. In order to reduce the gate voltage of the driving element before light emission, the gate voltage of the driving element must be increased in advance by sending a coupling signal.

[0083] In this embodiment, a coupling signal is transmitted via a coupling signal line. When the gate signal line is powered on, a capacitance is formed between the coupling signal line and the gate signal line due to coupling. Based on the coupled capacitance and the coupling signal, the gate voltage of the driving element can be adjusted, thereby adjusting the driving current of the driving element to the light-emitting element, thereby ultimately achieving adjustment of the brightness of the light-emitting element.

[0084] Furthermore, if Figure 7 As shown, step 102 includes:

[0085] Step 1021, after the light-emitting phase of the previous cycle of the display module ends and before entering the reset phase of the current cycle, a first coupling signal is sent to the driving structure through the coupling signal line; wherein the first coupling signal is configured to increase the gate voltage of the driving element.

[0086] Step 1022, after the display module enters the compensation phase of the current cycle and before entering the light-emitting phase of the current cycle, a second coupling signal is sent to the pixel driving structure through the coupling signal line; wherein the second coupling signal is configured to reduce the gate voltage of the driving element.

[0087] Step 1023, after sending the second coupling signal, sending an enable signal to the driving structure through the enable signal line to drive the light-emitting element to emit light, so that the display module enters the light-emitting phase of the current cycle; wherein the light-emitting brightness of the light-emitting element is related to the gate voltage of the driving element.

[0088] It should be noted that the display module is divided into three stages from initialization to light emission: reset stage, compensation stage and light emission stage. n-1 The scanning signal is reset to clear the possible signal residue in the previous stage and turn off the light-emitting element. n The scan signal is used to compensate and the threshold voltage written by the data signal is temporarily stored in the gate-source voltage. In the light-emitting stage, the enable signal is enabled through the enable signal line to control the light-emitting element to emit light. n-1 and S n It is the scanning signal of two adjacent rows. It can be understood as using the scanning signal of the previous row to reset and the scanning signal of the current row to compensate. At the same time, the scanning signal of the current row also serves as the reset signal of the next row.

[0089] In this embodiment, assuming that the scan signal and the enable signal are both defined as being effective at low potential, the first coupling signal is defined as a high level signal, and the second coupling signal is defined as a low level signal. Fig. 9 As shown, the process of coupling signal to adjust the luminous brightness is:

[0090] After the light-emitting phase of the previous cycle of the display module ends (i.e., after the enable signal changes from low potential to high potential) and before entering the reset phase of the current cycle (i.e., before S n-1 Before the scanning signal is at a low potential), a first coupling signal is sent to the driving structure to increase the gate voltage of the driving element;

[0091] After the compensation phase of the current cycle of the display module ends (i.e., after S n After the scanning signal changes from a low potential to a high potential) and before entering the light-emitting phase of the current cycle (i.e. before the enable signal is at a low potential), a second coupling signal is sent to the driving structure to reduce the gate voltage of the driving element;

[0092] After sending the second coupling signal, a low potential effective enable signal is sent to the driving structure, and the display module enters the light-emitting stage.

[0093] It can be seen that this embodiment improves the luminous brightness of the light-emitting element by reducing the gate voltage of the driving element after the compensation stage ends and before the light-emitting stage begins. The lower the gate voltage, the greater the current driving the light-emitting element, and the higher the brightness. In order to reduce the gate voltage of the driving element before the light-emitting stage, the gate voltage of the driving element must be increased in advance before the reset stage, so that the first coupling signal and the second coupling signal can cooperate to adjust the luminous brightness.

[0094] In addition, step 102 also includes: adjusting the luminous brightness of the light emitting element by adjusting the voltage of the coupling signal. Specifically, by adjusting the voltage of the coupling signal, the reduction range of the gate voltage can be adjusted, and then the adjustable range of the luminous brightness can be adjusted.

[0095] Specifically, the higher the voltage of the high-level coupling signal is and the lower the voltage of the low-level coupling signal is, the greater the reduction amplitude of the gate voltage is, and the higher the adjustable light emitting brightness is.

[0096] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the invention disclosed herein. The present disclosure is intended to cover any variations, uses or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art that are not disclosed in the present disclosure. The description and examples are to be considered exemplary only, and the true scope and spirit of the present disclosure are indicated by the following claims.

[0097] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A driving structure, characterized in that: include: A pixel array, the pixel array comprising: a plurality of pixel units, the pixel units comprising: a driving element; A gate signal line connected to the gate of the driving element; At least one group of coupling signal lines passes through the corresponding pixel units, and at least part of the projection of the coupling signal lines to the gate signal lines is located on the gate signal lines. When the gate signal lines and the coupling signal lines are energized, the coupling signal lines at the projected positions are coupled with the gate signal lines to form a capacitor.

2. The driving structure according to claim 1, characterized in that: The coupling signal line extends along the row direction of the pixel array and passes through the corresponding pixel unit in the corresponding row of the pixel array; Wherein, at least a portion of the coupling signal line projected onto the gate signal line of the corresponding pixel unit in the corresponding row is located on the gate signal line.

3. The driving structure according to claim 2, characterized in that: The driving structure also includes: A plurality of scanning signal lines, located in the same circuit layer as at least one group of the coupling signal lines, the scanning signal lines being connected to the pixel units of corresponding rows in the pixel array and configured to transmit scanning signals to the pixel units; Wherein, each group of the coupling signal lines and each of the scanning signal lines are arranged alternately.

4. The driving structure according to claim 2, characterized in that: The driving structure also includes: A plurality of scanning signal lines, located at a different circuit layer from at least one group of the coupling signal lines, the scanning signal lines being connected to the pixel units of corresponding rows in the pixel array and configured to transmit scanning signals to the pixel units; wherein the projections of the coupling signal lines corresponding to the pixel units in the same row onto the scanning signal lines are all located on the scanning signal lines; or, The projections of the coupling signal lines corresponding to the pixel units in the same row onto the scanning signal lines are at least partially located outside the scanning signal lines.

5. The driving structure according to claim 1, characterized in that: The coupling signal line extends along the column direction of the pixel array and passes through the corresponding pixel unit in the corresponding column of the pixel array; Wherein, at least a portion of the coupling signal line projected onto the gate signal line of the corresponding pixel unit in the corresponding column is located on the gate signal line.

6. The driving structure according to claim 5, characterized in that: The driving structure also includes: a plurality of data signal lines, located in the same circuit layer as at least one group of the coupling signal lines, the data signal lines being connected to the pixel units of corresponding columns in the pixel array and configured to transmit data signals to the pixel units; Wherein, each group of the coupling signal lines and each of the data signal lines are arranged alternately.

7. The driving structure according to claim 5, characterized in that: The driving structure also includes: a plurality of data signal lines, located at a different circuit layer from at least one group of the coupling signal lines, the data signal lines being connected to the pixel units of corresponding columns in the pixel array and configured to transmit data signals to the pixel units; Wherein, the projections of the coupling signal lines corresponding to the pixel units in the same column onto the data signal lines are all located on the data signal lines; or, The projections of the coupling signal lines corresponding to the pixel units in the same column onto the data signal lines are at least partially located outside the data signal lines.

8. The driving structure according to any one of claims 1 to 7, characterized in that: Each group of coupling signal lines includes at least one coupling signal line; Wherein, at least a portion of the projection of at least one coupling signal line in each group onto the gate signal line is located on the gate signal line.

9. The driving structure according to claim 1, characterized in that: The driving structure also includes: A plurality of enable signal lines, wherein the enable signal lines are connected to the pixel units of corresponding rows in the pixel array; The switch element is connected to the enable signal line and the drive element, and is configured to be turned on based on the enable signal transmitted by the enable signal line to transmit the power signal to the drive element.

10. A display module, characterized in that: include: The drive structure according to any one of claims 1 to 9, further comprising: The light emitting element is connected to the driving element and is configured to emit light when driven by the driving element.

11. The display module according to claim 10, characterized in that: The display module also includes: a scan driving circuit connected to the scan signal line and configured to transmit a scan signal through the scan signal line; Wherein, the scan driving circuit is a bilateral driving circuit.

12. The display module according to claim 10, characterized in that: The display module also includes: an enable driving circuit connected to the enable signal line and configured to transmit an enable signal to the enable signal line; Wherein, the enabling driving circuit is a unilateral driving circuit.

13. The display module according to claim 10, characterized in that: The display module also includes: a coupling driving circuit connected to the coupling signal line and configured to transmit a coupling signal to the coupling signal line; The coupling driving circuit is a unilateral driving circuit.

14. An electronic device, characterized in that: Comprising a display module as described in any one of claims 10-13.

15. A driving method, characterized in that: Applied to the display module according to any one of claims 10 to 13, the method comprises: transmitting a coupled signal through the coupled signal line; When the gate signal line is powered on, the light luminance of the light emitting element in the display module is adjusted based on the coupling signal.

16. The method according to claim 15, characterized in that When the gate signal line is powered on, adjusting the light luminance of the light emitting element in the display module based on the coupling signal comprises: After the light-emitting phase of the previous cycle of the display module ends and before entering the reset phase of the current cycle, a first coupling signal is sent to the driving structure through the coupling signal line; wherein the first coupling signal is configured to increase the gate voltage of the driving element; After the compensation phase of the current cycle of the display module ends and before entering the light-emitting phase of the current cycle, a second coupling signal is sent to the driving structure through the coupling signal line; wherein the second coupling signal is configured to reduce the gate voltage of the driving element; After sending the second coupling signal, sending an enable signal to the driving structure through the enable signal line to drive the light-emitting element to emit light, so that the display module enters the light-emitting phase of the current cycle; The light emitting brightness of the light emitting element is related to the gate voltage of the driving element.

17. The driving method according to claim 15, characterized in that: The adjusting the light luminance of the light emitting element in the display module based on the coupling signal comprises: The brightness of the light emitting element is adjusted by adjusting the voltage of the coupling signal.

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