Drive structure, display module, electronic devices and driving method

Abstract

This disclosure relates to a driving structure, display module, electronic device, and driving method. The driving structure includes a pixel array, which includes a plurality of pixel units, each pixel unit including a driving element; a gate signal line connected to the gate of the driving element; and at least one set of coupling signal lines passing through the corresponding pixel unit, wherein at least a portion of the projection of the coupling signal line onto the gate signal line lies on the gate signal line. When the gate signal line and the coupling signal line are energized, a capacitor is formed at the projection location. This disclosure achieves the adjustment of light emission brightness by adding at least one set of coupling signal lines whose projection onto the gate signal line of the driving element is at least partially located on the gate signal line, so that a coupling capacitor is formed at the projection location when energized.

Description

Technical Field

[0001] This disclosure relates to the field of displays, and more particularly to a driving structure, display module, electronic device, and driving method. Background Technology

[0002] Organic light-emitting diode (OLED) displays are self-emissive displays that emit light by exciting organic compounds. In recent years, OLED displays have been widely used in products of various sizes, such as mobile phones, tablets, and laptops. With the development of end-user applications, displays also need to meet more requirements, such as high brightness, especially in outdoor sunlight, or in applications such as High Dynamic Range Imaging (HDR), video, and HDR photography. Users often expect displays to achieve higher global maximum brightness and peak brightness.

[0003] The maximum brightness achievable by an OLED display depends on the efficiency of the light-emitting material and the current that the driving transistors can provide. However, the current of the driving transistors depends on the gate voltage of the transistors, which is written by the data voltage of the data signal lines. 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 increase the maximum brightness further. Summary of the Invention

[0004] This 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 the present disclosure, a driving structure is provided, comprising:

[0006] A pixel array comprising: a plurality of pixel units, each pixel unit comprising: a driving element; a gate signal line connected to the gate of the driving element; and at least one set of coupling signal lines passing through the corresponding pixel unit, wherein at least a portion of the projection of the coupling signal line onto 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 projection location is coupled to 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 unit in the corresponding row of the pixel array; wherein at least a portion of the coupling signal line is projected onto the gate signal line of the corresponding pixel unit in the corresponding row and lies on the gate signal line.

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

[0009] In some embodiments, the driving structure further includes: a plurality of scan signal lines located on different circuit layers from at least one set of the coupling signal lines, the scan signal lines being connected to the pixel units in corresponding rows of the pixel array and configured to transmit scan signals to the pixel units; wherein the projections of the coupling signal lines corresponding to the pixel units in the same row onto the scan signal lines are all located on the scan signal lines; or, the projections of the coupling signal lines corresponding to the pixel units in the same row onto the scan signal lines are at least partially located outside the scan 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 is projected onto the gate signal line of the corresponding pixel unit in the corresponding column and lies on the gate signal line.

[0011] In some embodiments, the driving structure further includes: multiple data signal lines located on the same circuit layer as at least one set of the coupled signal lines, the data signal lines being connected to the pixel units in corresponding columns of the pixel array and configured to transmit data signals to the pixel units; wherein each set of the coupled signal lines and each data signal line are arranged alternately.

[0012] In some embodiments, the driving structure further includes: a plurality of data signal lines located on different circuit layers from at least one set of the coupling signal lines, the data signal lines being connected to the pixel units in corresponding columns of 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.

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

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

[0015] According to a second aspect of the present disclosure, a display module is provided, comprising:

[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 scan signals through the scan signal line; wherein the scan driving circuit is a dual-sided driving circuit.

[0018] In some embodiments, the display module further 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 enable driving circuit is a single-sided driving 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 single-sided drive circuit.

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

[0021] According to a fourth aspect of the present disclosure, a driving method is provided, applied to a display module in the second aspect described above, the method comprising: transmitting a coupling signal through the coupling signal line; and adjusting the luminous brightness of a 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 via 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 via the coupling signal line; wherein the second coupling signal is configured to decrease the gate voltage of the driving element; after sending the second coupling signal, an enable signal is sent to the driving structure via 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 luminous intensity of the light-emitting element is related to the gate voltage of the driving element.

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

[0024] The technical solutions provided by the embodiments of this disclosure may include the following beneficial effects:

[0025] The driving structure disclosed herein includes a pixel array composed of multiple pixel units, a gate signal line, and at least one set of coupling signal lines. Each pixel unit includes a driving element, the gate of which is connected to the gate signal line. The projection of the coupling signal line onto 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 located on different circuit layers in three-dimensional space and are at least partially overlapped. When energized, a capacitor is formed at the projection location through coupling. Under the coupling effect, the capacitor can adjust the gate voltage of the driving element. Adjusting the gate voltage can adjust the driving current of the driving element to the light-emitting element, ultimately adjusting the brightness of the light-emitting element. Thus, within the same voltage limit range of the driving chip, this disclosure can achieve higher brightness, thereby achieving a better display effect.

[0026] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

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

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

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

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

[0031] Figure 4 This is illustrated according to an exemplary embodiment. Figure 3 The circuit diagram of the corresponding single pixel unit.

[0032] Figure 5 This is a schematic diagram of the structure of a display module according to an exemplary embodiment.

[0033] Figure 6 This is a schematic diagram illustrating a driving method for a display module according to an exemplary embodiment.

[0034] Figure 7 This is a driving method flow illustrated according to an exemplary embodiment. Figure 1 .

[0035] Figure 8 This is a driving method flow illustrated according to an exemplary embodiment. Figure 2 .

[0036] Figure 9 This is a signal timing diagram of a driving method according to an exemplary embodiment.

[0037] Explanation of icon 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, enable signal line 16, and switching element 17. Detailed Implementation

[0039] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this disclosure as detailed in the appended claims.

[0040] In this specification, unless otherwise expressly stated, the terms "first" and "second" are used only to describe and distinguish the constituent elements, and should not be construed as indicating order. Unless otherwise expressly stated, the terms "connection," "fixing," etc., should be understood in a broad sense, including but not limited to "connecting" or "fixing" directly, indirectly, or detachably.

[0041] This 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 set of coupling signal lines 13.

[0042] The pixel array 11 includes multiple 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 (Not shown) emits light, and the number and type of the light-emitting element can be adjusted according to the luminous 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 of this disclosure 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] In this configuration, at least one set of coupling signal lines 13 passes through the corresponding pixel unit 110, and at least a portion of the projection of the coupling signal lines 13 onto the gate signal lines 12 is located on the gate signal lines 12. When the gate signal lines 12 and the coupling signal lines 13 are energized, a capacitor is formed at the projection location.

[0045] Specifically, the number (in groups), orientation, and correspondence between the coupling signal lines 13 and pixel units 110 can be adjusted based on factors such as the number and position of the pixel units forming the coupling capacitor, the orientation of the gate signal lines, and the arrangement of the pixel array. This disclosure does not impose any limitations on these factors. For example, taking a 3*2 pixel array as an example, when all 6 pixel units need to form coupling capacitors to improve luminous brightness, firstly, two groups of coupling signal lines can be set in the row direction, with one group corresponding to 3 pixel units; secondly, three groups of coupling signal lines can be set in the column direction, with one group corresponding to 2 pixel units.

[0046] For example, in a 3x2 pixel array, when only the pixel units in the first row and first column, the first row and second column, the second row and second column, and the second row and third column need to form coupling capacitors to improve brightness, the first approach is to set two sets of coupling signal lines in the row direction. One set of coupling signal lines corresponds to the pixel units in the first row and first column, and the other set corresponds to the pixel units in the second row and second column. The second approach is to rotate the first row 45° towards the second row. A third option is to extend a set of coupling signal lines through the pixel units in the first row and first column and the second row and second column, while extending another set of coupling signal lines through the pixel units in the first row and second column and the second row and third column, with the second row as one side and rotated 45° towards the first row.

[0047] Of course, the various coupling signal setting methods illustrated above must conform to the condition that at least a portion of the projection of the coupling signal line 13 onto the gate signal line 12 is located on the gate signal line 12.

[0048] Therefore, even under the same conditions (where the pixel array arrangement, the position and direction of the gate signal lines, and the number and positional relationship of the pixel units that need to form coupling capacitors are all fixed), there can be multiple ways to set the number of coupling signal line groups, their setting direction, and the correspondence between each group of coupling signal lines and the 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] Furthermore, the projection of the coupling signal line 13 onto the gate signal line 12 is at least partially located on the gate signal line 12, meaning that the coupling signal line 13 and the gate signal line 12 are on different circuit layers in three-dimensional space and are at least partially stacked. When energized, the projection locations of the coupling signal line 13 and the gate signal line 12 (the stacked locations) form a capacitor due to coupling. This capacitor, under the coupling effect, can adjust the gate voltage of the driving element 111, thereby adjusting the driving current of the driving element 111 to the light-emitting element, ultimately adjusting the brightness of the light-emitting element. Thus, within the same voltage limit range of the driving chip, this disclosure can achieve higher brightness, thereby achieving a better display effect.

[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 is projected onto the gate signal line 12 of the corresponding pixel unit 110 in the corresponding row and is located on the gate signal line 12.

[0051] Specifically, the coupling signal line 13 can be configured to pass through each pixel unit 110 of each row in the pixel array 11, or a portion of the pixel units 110 of each row, or a portion of the pixel units 110 of some rows in the pixel array 11. Simultaneously, the coupling signal line 13 can couple with the gate signal line 12 of the corresponding row and corresponding pixel unit to form a capacitor when energized. In other words, this embodiment can adjust the brightness of each pixel unit in the pixel array, or it can adjust the brightness of only a portion of the pixel units in the pixel array.

[0052] Furthermore, in this embodiment, the capacitance value of the capacitor formed by coupling can be adjusted by adjusting the projected area and distance between the gate signal line 12 and the coupling signal line 13, thereby adjusting the luminous brightness. A larger projected area results in a larger capacitance value and a higher luminous brightness. A smaller distance results in a larger capacitance value and a higher luminous brightness.

[0053] Furthermore, such as Figure 2 As shown, the driving structure 10 further includes: multiple scan signal lines 14, which are located on the same circuit layer as at least one set of coupling signal lines 13. The scan signal lines 14 are connected to the pixel units 110 in the corresponding row of the pixel array 11 and are configured to transmit scan signals to the pixel units 110. Each set of coupling signal lines 13 and each scan signal line 14 are arranged alternately.

[0054] In addition, multiple scan signal lines 14 may be located on different circuit layers from at least one set of coupling signal lines 13; wherein the projection of the coupling signal lines 13 corresponding to the same row of pixel units 110 onto the scan signal lines 14 is entirely located on the scan signal lines 14; or, the projection of the coupling signal lines 13 corresponding to the same row of pixel units 110 onto the scan signal lines 14 is at least partially located outside the scan signal lines 14.

[0055] Specifically, when both the coupling signal line 13 and the scan signal line 14 are arranged along the row direction, they can be located on the same circuit layer or on different circuit layers. When they are on the same circuit layer, the coupling signal line 13 and the scan signal line 14 are arranged alternately. When they are on different circuit layers, the projection of the coupling signal line 13 onto the scan signal line 14 can be entirely on the scan signal line 14, partially on the scan signal line 14, or not on the scan signal line 14 at all. That is, they can be fully superimposed, partially superimposed, or not superimposed in three-dimensional space.

[0056] When both the coupling signal line 13 and the scan signal line 14 are fully or partially stacked, the coupling signal line 13, the scan 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 scan signals 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 the two thin-film transistors in the pixel unit and transmits scan signals 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 is projected onto the gate signal line 12 of the corresponding pixel unit in the corresponding column and is located on the gate signal line 12.

[0059] Specifically, the coupling signal line 13 can be configured to pass through each pixel unit 110 of each column or a portion of the pixel units 110 in each column of the pixel array 11, or it can be configured to pass through each pixel unit 110 of a portion of rows and columns or a portion of the pixel units 110 in a portion of columns of the pixel array 11. Simultaneously, the coupling signal line 13 can couple with the gate signal line 12 of the corresponding column and the corresponding pixel unit to form a capacitor when energized. In other words, this embodiment can adjust the brightness of each pixel unit in the pixel array, or it can adjust the brightness of only a portion of the pixel units in the pixel array.

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

[0061] In addition, the data signal line 15 may be located on a different circuit layer from at least one set of coupled signal lines 13; wherein the projection of the coupled signal line 13 corresponding to the same column of pixel unit 110 onto the data signal line 15 is entirely located on the data signal line; or, the projection of the coupled signal line 13 corresponding to the same column of pixel unit 110 onto the data signal line 15 is at least partially located outside the data signal line 15.

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

[0063] When both the coupling signal line 13 and the data signal line 15 are fully or partially stacked, there is a stacking of the coupling signal line 13, the data signal line 15 and the gate signal line 12.

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

[0065] Specifically, each set of coupling signal lines 13 may include one or more coupling signal lines 13. When only one coupling signal line 13 is included, the projected area with the gate signal line 12 can be increased by widening this coupling signal line 13, thereby increasing the capacitance value of the capacitor formed by the coupling signal line 13 and the gate signal line 12, ultimately achieving an increase in luminous brightness. When multiple coupling signal lines 13 are included, the multiple coupling signal lines 13 are coupled with the gate signal line 12 to form multiple capacitors (i.e., equivalent to widening the width of a single coupling signal line), ultimately also achieving an increase in luminous brightness.

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

[0067] Specifically, each enable signal line 16 is connected to a corresponding switching element 17 in each row of pixel units 110, and an enable signal is transmitted to the switching element 17 to turn on the switching element 17. After being turned on, the switching element transmits a power signal to the driving element 111 so that the driving element 111 drives the light-emitting element to emit light.

[0068] Figure 3This is a schematic diagram of the layout of a single pixel unit containing gate signal line 12, coupling signal line 13, scan signal line 14, data signal line 15, and enable signal line 16. Other pixel units can be arranged in the same way to form a pixel array. Where S n-1 S is the previous scan signal line. n T1 is the current row scan signal line, EM is the enable signal line, data is the data signal line, and VI is the power signal line. T1 is the drive element, and T2-T7 are the switching elements.

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

[0070] This disclosure also provides a display module, such as... Figure 5 As shown, the display module 100 includes: the driving structure 10 described in the foregoing embodiment, and the display module 100 further includes:

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

[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 scan signals through the scan signal line 14; wherein the scan driving circuit 30 is a dual-sided driving circuit.

[0073] In some embodiments, the display module 100 further includes an enable drive 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 drive circuit 40 is a single-sided drive circuit.

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

[0075] In this embodiment, a double-sided driving circuit means that for signal lines in the row direction, there is a set of driving circuits on both the left and right sides to transmit signals. A single-sided driving circuit, on the other hand, sets up a set of driving circuits on either the left or right side to transmit signals. Single-sided driving is low-cost and starts up quickly, while double-sided driving is highly efficient and reliable.

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

[0077] This disclosure also provides an electronic device, including the display module 100 described in the foregoing embodiments.

[0078] Here, electronic devices can include terminal devices. Terminal devices can include mobile terminals and fixed terminals, such as mobile phones, tablets, PDAs, laptops, desktop computers, wearable devices, smart speakers, televisions, and in-vehicle terminals. Fixed terminals can include desktop computers, etc.

[0079] This disclosure also provides a driving method applied to the display module described in the foregoing embodiments, such as... Figure 7 As shown, the driving method includes:

[0080] Step 101: Transmit the coupled signal through the coupled signal line.

[0081] Step 102: With the gate signal line energized, adjust the brightness of the light-emitting element in the display module based on the coupling signal.

[0082] Specifically, the brightness of a light-emitting element can be increased by sending a coupling signal to lower the gate voltage of the driving element. The lower the gate voltage, the greater the current driving the light-emitting element, and the higher the brightness. To lower the gate voltage of the driving element before it emits light, 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 through a coupling signal line. When the gate signal line is energized, the coupling signal line and the gate signal line form a capacitance due to coupling. Based on the coupling 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, and finally adjusting the brightness of the light-emitting element.

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

[0085] Step 1021: After the light-emitting phase of the display module in the previous cycle 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 emission 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, 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 stage 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's process from initial setup to emission consists of three stages: the reset stage, the compensation stage, and the emission stage. During the reset stage, S... n-1 The scanning signal is reset to clear any residual signal from the previous stage, turning off the light-emitting element. During the compensation stage, S... n The scanning signal is compensated, and the threshold voltage written by the data signal is temporarily stored in the gate-source voltage. During the light-emitting stage, the enable signal is activated via the enable signal line, controlling the light-emitting element to emit light. Wherein, S... n-1 and S n These are the scan signals of two adjacent rows. It can be understood that the scan signal of the previous row is used to reset, and the scan signal of the current row is used to compensate. At the same time, the scan signal of the current row also serves as the reset signal for the next row.

[0089] In this embodiment, assuming that both the scan signal and the enable signal are defined as active low, the first coupling signal is defined as a high-level signal, and the second coupling signal is defined as a low-level signal. Then, as... Figure 9 As shown, the process of adjusting the brightness of the emitted light using the coupling signal is as follows:

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

[0091] After the compensation phase of the current cycle of the display module ends (i.e., in S... n After the scan signal changes from a low potential to a high potential, and before entering the light emission stage 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 active enable signal is sent to the driving structure, indicating that the display module has entered the light-emitting stage.

[0093] Therefore, this embodiment improves the brightness of the light-emitting element by reducing the gate voltage of the driving element after the compensation phase and before the light-emitting phase 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 phase, the gate voltage of the driving element must be increased before the reset phase. In this way, the first coupling signal and the second coupling signal can work together to adjust the brightness.

[0094] In addition, step 102 further 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 rate of the gate voltage can be adjusted, thereby adjusting the adjustable range of the luminous brightness.

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

[0096] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the following claims.

[0097] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

Claims

1. A driving structure, characterized in that, include: A pixel array, comprising: a plurality of pixel units, each pixel unit comprising: a driving element; the driving element and a connected light-emitting element are located in a display module, and are used to drive the connected light-emitting element to emit light during the light-emitting phase of the display module; The gate signal line is connected to the gate of the driving element; At least one set of coupling signal lines passes through the corresponding pixel unit, and at least a portion of the projection of the coupling signal line onto the gate signal line is located on the gate signal line. When the gate signal line and the coupling signal line are energized, the coupling signal line at the projection position is coupled with the gate signal line to form a capacitor, so as to adjust the gate voltage of the driving element by the coupling signal transmitted through the coupling signal line and the coupled capacitor. A set of coupling signal lines includes one coupling signal line for outputting coupling signals with different level states at different stages; the coupling signal lines of the target group in the at least one set of coupling signal lines are bent and pass through multiple target pixel units in sequence, and the multiple target pixel units are distributed in at least two rows and / or at least two columns, and are staggered along the row direction or column direction of the pixel array; Specifically, from the end of the light-emitting phase of the previous cycle of the display module to the reset phase of the current cycle, the coupling signal line transmits a first coupling signal; from the compensation phase to the light-emitting phase of the current cycle of the display module, the coupling signal line transmits a second coupling signal. The first coupling signal is configured to increase the gate voltage of the driving element; the second coupling signal is configured to decrease the gate voltage of the driving element; the lower the gate voltage, the higher the brightness of the light-emitting element.

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 projection of the coupling signal line 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: Multiple scan signal lines are located on the same circuit layer as at least one set of the coupled signal lines, and the scan signal lines are connected to the pixel units in the corresponding rows of the pixel array, configured to transmit scan signals to the pixel units; In this arrangement, each set of coupling signal lines and each scan signal line are arranged alternately.

4. The driving structure according to claim 2, characterized in that, The driving structure also includes: Multiple scan signal lines are located on different circuit layers with at least one set of coupled signal lines. The scan signal lines are connected to the pixel units in the corresponding rows of the pixel array and are configured to transmit scan signals to the pixel units. Wherein, the projections of the coupling signal lines corresponding to the pixel units in the same row onto the scan signal lines are all located on the scan signal lines; or... The projection of the coupling signal line corresponding to the pixel unit in the same row onto the scan signal line is at least partially located outside the scan signal line.

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 projection of the coupling signal line 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: Multiple data signal lines are located on the same circuit layer as at least one set of the coupled signal lines, and the data signal lines are connected to the pixel units in the corresponding columns of the pixel array, configured to transmit data signals to the pixel units; In this arrangement, each set of coupling signal lines and each set of data signal lines are arranged alternately.

7. The driving structure according to claim 5, characterized in that, The driving structure also includes: Multiple data signal lines are located on different circuit layers with at least one set of the coupled signal lines. The data signal lines are connected to the pixel units in the corresponding columns of 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 same column of pixel units onto the data signal lines are all located on the data signal lines; or... The projection of the coupling signal line corresponding to the pixel unit in the same column onto the data signal line is at least partially located outside the data signal line.

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

9. A display module, characterized in that, include: The drive structure as described in any one of claims 1-8 further includes: A light-emitting element, connected to the driving element, is configured to emit light under the drive of the driving element.

10. The display module according to claim 9, characterized in that, The display module also includes: A scan drive circuit, connected to the scan signal line, is configured to transmit a scan signal through the scan signal line; The scanning drive circuit is a bilateral drive circuit.

11. The display module according to claim 9, characterized in that, The display module also includes: An enable drive circuit is connected to the enable signal line of the drive structure and configured to transmit an enable signal to the enable signal line; The enabling drive circuit is a single-sided drive circuit.

12. The display module according to claim 9, characterized in that, The display module also includes: A coupling drive circuit, connected to the coupling signal line, is configured to transmit a coupling signal to the coupling signal line; The coupling drive circuit is a single-sided drive circuit.

13. An electronic device, characterized in that, Includes the display module as described in any one of claims 9-12.

14. A driving method, characterized in that, Applied to a display module as described in any one of claims 9-12, the method comprises: The coupled signal is transmitted through the coupled signal line; When the gate signal line is energized, the brightness of the light-emitting element in the display module is adjusted based on the coupling signal.

15. The method according to claim 14, characterized in that, When the gate signal line is energized, adjusting the luminous brightness of the light-emitting element in the display module based on the coupling signal includes: After the light-emitting phase of the previous cycle of the display module ends and before the reset phase of the current cycle begins, 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 the light emission phase of the current cycle begins, 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, an enable signal is sent to the driving structure through the enable signal line of the driving structure in the display module to drive the light-emitting element to emit light, so that the display module enters the light-emitting phase of the current cycle; The luminous intensity of the light-emitting element is related to the gate voltage of the driving element.

16. The driving method according to claim 14, characterized in that, Adjusting the brightness of the light-emitting elements in the display module based on the coupling signal includes: The brightness of the light-emitting element can be adjusted by regulating the voltage of the coupling signal.

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