Display modules and electronic terminals

Abstract

This invention provides a display module and an electronic terminal, including a display panel, a power management module, and a source driver module. The display panel includes multiple pixel units, and the source driver module is electrically connected between the multiple pixel units and the control motherboard. The invention also includes a signal processing module electrically connected between the source driver module and the power management module. The signal processing module is loaded and processes a first signal generated by the power management module into a second signal loaded onto the source driver module. The energy of the second signal is different from that of the first signal, which can reduce EMI radiation generated by the source driver module or improve the problem of inaccurate signal transmission due to low energy, effectively expanding the application range of the display module.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of display, in particular to the technical field of display module manufacturing, and more particularly to a display module and an electronic terminal. BACKGROUND

[0002] The display module is provided with a plurality of driving chips for driving, wherein the energy of the signals in a certain frequency range may be concentrated and large when the source driving chip transmits the signals in the frequency range, which is easy to cause EMI (Electromagnetic Interference) radiation, and affects the normal work of other systems or other subsystems in the system, or when the energy of the signals in the frequency range is small, the signals may not be accurately transmitted due to attenuation, which limits the use range of the display module.

[0003] Therefore, the source driving chip in the existing display module has the problem of EMI radiation, which needs to be improved. SUMMARY

[0004] The embodiments of the present application provide a display module and an electronic terminal to solve the technical problem that the energy of part of the signals in the existing display module is concentrated and large, which causes the source driving chip to have EMI radiation, or the energy is small, which causes the signals to be unable to be accurately transmitted.

[0005] The embodiments of the present application provide a display module, comprising:

[0006] A display panel comprising a plurality of pixel units;

[0007] A power management module;

[0008] A source driving module electrically connected between the plurality of pixel units and the control mainboard;

[0009] The display module further comprises a signal processing module electrically connected between the source driving module and the power management module, the signal processing module is loaded with a first signal generated by the power management module, and the first signal is processed into a second signal loaded to the source driving module, and the energy of the second signal is different from that of the first signal.

[0010] In an embodiment, the energy of the second signal is smaller than that of the first signal.

[0011] In an embodiment, the first signal comprises a first sub-signal and a second sub-signal, and the second signal comprises a third sub-signal and a fourth sub-signal.

[0012] The signal processing module comprises:

[0013] The first sub-signal processing module is loaded with the first sub-signal generated by the power management module, and processes the first sub-signal into a third sub-signal loaded onto the source drive module. The energy of the third sub-signal is less than the energy of the first sub-signal.

[0014] In one embodiment, the energy difference between the third sub-signal and the first sub-signal is greater than the energy difference between the fourth sub-signal and the second sub-signal.

[0015] In one embodiment, the first sub-signal processing module includes one of an impedance reduction circuit and a low-dropout linear regulator.

[0016] In one embodiment, the signal processing module further includes:

[0017] The second sub-signal processing module is loaded with the second sub-signal generated by the power management module, and processes the second sub-signal into a fourth sub-signal loaded onto the source drive module. The energy of the fourth sub-signal is less than the energy of the second sub-signal.

[0018] In one embodiment, the second sub-signal processing module includes another of the impedance drop circuit and the low dropout linear regulator.

[0019] In one embodiment, the first sub-signal includes an analog voltage signal, and the second sub-signal includes a digital voltage signal.

[0020] In one embodiment, the source drive module includes:

[0021] A transistor, wherein one of the source or drain of the transistor is grounded, and the gate of the transistor is electrically connected to the signal processing module;

[0022] The second signal is a voltage signal, and the magnitude of the gate voltage of the transistor is positively correlated with the magnitude of the voltage corresponding to the second signal.

[0023] In one embodiment, the display module includes a control motherboard, the control motherboard includes the power management module, and the source drive module is disposed between the plurality of pixel units and the control motherboard;

[0024] The signal processing module is located on the control motherboard; or

[0025] A flexible flat cable and a connecting board are provided between the source drive module and the control motherboard. The flexible flat cable connects the control motherboard and the connecting board, and the signal processing module is located on the connecting board.

[0026] This invention provides an electronic terminal, including any of the display modules described above.

[0027] This invention provides a display module and its driving method. By setting a signal processing module electrically connected between a source driving module and a power management module, a first signal generated by the power management module is loaded, and the first signal is processed into a second signal loaded onto the source driving module. This ensures that the energy of the second signal is different from that of the first signal. By reasonably setting the signal processing module, the energy of the second signal can be increased or decreased compared to the first signal. This can reduce EMI radiation generated by the source driving module or improve the problem of inaccurate signal transmission caused by low energy, effectively expanding the application range of the display module. Attached Figure Description

[0028] The present invention will be further described below with reference to the accompanying drawings. It should be noted that the accompanying drawings described below are merely for illustrating some embodiments of the present invention. Those skilled in the art can obtain other drawings based on these drawings without any creative effort.

[0029] Figure 1 This is a top view of the unfolded display module provided in an embodiment of the present invention.

[0030] Figure 2 This is a schematic diagram of the transistor structure in the source drive module provided in an embodiment of the present invention.

[0031] Figure 3 The waveform diagram shows the EMI radiation measured for source drive modules in the prior art.

[0032] Figure 4 The waveform diagram shows the EMI radiation measured for the source drive module in this invention. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0034] The terms "first," "second," "third," etc., used in this invention are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or modules is not limited to the listed steps or modules, but may optionally include steps or modules not listed, or may optionally include other steps or modules inherent to these processes, methods, products, or apparatuses.

[0035] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the invention. The appearance of this phrase at various points in the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0036] The present invention provides a display module, which includes, but is not limited to, the following embodiments and combinations thereof.

[0037] In one embodiment, such as Figure 1 As shown, the display module 100 includes: a display panel 10, including multiple pixel units; a power management module 201; and a source driver module 30 electrically connected between the multiple pixel units and the control motherboard 20. The display module 100 further includes a signal processing module 202 electrically connected between the source driver module 30 and the power management module 201. The signal processing module 202 is loaded with a first signal V1 generated by the power management module 201 and processes the first signal V1 into a second signal V2 loaded onto the source driver module 30. The energy of the second signal V2 is different from the energy of the first signal V1. Further, the display module 100 may include a control motherboard 20, which may include the power management module 201. The source driver module 30 is disposed between the multiple pixel units and the control motherboard 20, and the signal processing module 202 may be disposed on the control motherboard 20.

[0038] The display panel 10 may include, but is not limited to, at least one of a liquid crystal display panel, an organic electroluminescent display panel, a light-emitting diode display panel, a sub-millimeter light-emitting diode display panel, and a micron light-emitting diode display panel. Specifically, the source driver module 30 is electrically connected to multiple pixel units and the control motherboard 20. Under the control of the control motherboard 20, the source driver module 30 can load a corresponding data signal Vdata to each sub-pixel 101 in each pixel unit to control each pixel unit to display the corresponding color, thereby realizing the display of the image on the display panel 10.

[0039] It should be noted that if the first signal V1 generated by the power management module 201 in the control motherboard 20 is directly applied to the source driver module 30, the first signal V1 contains an AC signal with high energy. Combined with the device structure of the source driver module 30 itself, the energy of the signal transmitted in the source driver module 30 within a certain frequency range may still be relatively concentrated and high, which may easily generate EMI (Electromagnetic Interference) radiation. This will affect the normal operation of other systems or other subsystems within this system, thus limiting the scope of use of the display module 100.

[0040] Understandably, this embodiment includes a signal processing module 202 electrically connected between the source drive module 30 and the power management module 201. The signal processing module 202 can process the first signal V1 generated by the power management module 201 into a second signal V2 loaded onto the source drive module 30. The energy of the second signal V2 is different from that of the first signal V1. That is, the signal processing module 202 can process the signal generated by the power management module 201 and loaded onto the source drive module 30 to change its energy, so that the energy of the second signal V2 loaded onto the source drive module 30 can at least reduce the EMI radiation generated by the source drive module 30, thus avoiding limiting the application range of the display module 100.

[0041] Of course, the signal processing module 202 can also be configured to process the first signal V1 generated by the power management module 201 according to the energy requirements of the signal needed by the source driver module 30. Here, the relationship between the energy of the second signal V2 and the energy of the first signal V1 is not limited, as long as they are different. Specifically, for example, when the energy of the signal transmitted in the source driver module 30 within a certain frequency range is relatively concentrated and large, i.e., the energy of the signal required by the source driver module 30 is small, the signal processing module 202 can be configured to ensure that the energy of the second signal V2 is less than the energy of the first signal V1; conversely, when the energy of the signal transmitted in the source driver module 30 within a certain frequency range is small, i.e., the energy of the signal required by the source driver module 30 is large, the signal processing module 202 can be configured to ensure that the energy of the second signal V2 is greater than the energy of the first signal V1.

[0042] In one embodiment, such as Figure 1 As shown, the first signal V1 includes a first sub-signal VAA and a second sub-signal VCC, and the second signal V2 includes a third sub-signal VAA' and a fourth sub-signal VCC'. The signal processing module 202 includes: a first sub-signal processing module 2021, which is loaded with the first sub-signal VAA generated by the power management module 201 and processes the first sub-signal VAA into a third sub-signal VAA' loaded onto the source drive module 30, wherein the energy of the third sub-signal VAA' is less than the energy of the first sub-signal VAA; and a second sub-signal processing module 2022, which is loaded with the second sub-signal VCC generated by the power management module 201 and processes the second sub-signal VCC into a fourth sub-signal VCC' loaded onto the source drive module 30, wherein the energy of the fourth sub-signal VCC' is less than the energy of the second sub-signal VCC.

[0043] Understandably, since the first signal V1 includes a first sub-signal VAA and a second sub-signal VCC, this embodiment provides a first sub-signal processing module 2021 and a second sub-signal processing module 2022 for processing the first sub-signal VAA and the second sub-signal VCC, respectively. On the one hand, it can perform corresponding processing according to the characteristics of different signals. On the other hand, it can perform corresponding processing according to the energy requirements of each signal by the source drive module 30, including but not limited to the energy requirements. This allows the third sub-signal VAA' generated by the first sub-signal VAA processed by the first sub-signal VAA and the fourth sub-signal VCC' generated by the second sub-signal VCC processed by the second sub-signal VCC processed by the second sub-signal processing module 2022 to meet the needs of different devices in the source drive module 30, further improving the reliability of processing the first signal V1 and further expanding the application range of the display module 100.

[0044] In one embodiment, such as Figure 1 As shown, the energy of the second sub-signal VCC is less than the energy of the first sub-signal VAA. Specifically, in conjunction with the above discussion, the first sub-signal processing module 2021 and the second sub-signal processing module 2022 can perform corresponding processing according to the characteristics of different signals. For example, in this embodiment, the energy of the signal that the first sub-signal processing module 2021 can process (e.g., the first sub-signal VAA) can be further limited to be greater than the energy of the signal that the second sub-signal processing module 2022 can process (e.g., the second sub-signal VCC).

[0045] Understandably, when there is a difference between the energy of the second sub-signal VCC and the energy of the first sub-signal VAA, or when the difference is large, setting the first sub-signal processing module 2021 and the second sub-signal processing module 2022 to process them separately can improve the reliability of the signal processing module 202 in processing the first signal V1. This reduces the risk that the energy difference between the second sub-signal VCC and the first sub-signal VAA is too large, causing them to be unable to be processed by the same sub-signal processing module at the same time, resulting in the energy of the output second sub-signal VCC not meeting the requirements of the source drive module 30.

[0046] In one embodiment, such as Figure 1 As shown, the energy difference between the third sub-signal VAA' and the first sub-signal VAA is greater than the energy difference between the fourth sub-signal VCC' and the second sub-signal VCC. Specifically, in conjunction with the above discussion, the first sub-signal processing module 2021 and the second sub-signal processing module 2022 can perform corresponding processing on each signal according to the source drive module 30, including but not limited to the energy requirements. For example, in this embodiment, it can be further limited that the energy-changing capability of the first sub-signal processing module 2021 (e.g., processing the energy of the first sub-signal VAA to the energy of the third sub-signal VAA') can be greater than the energy-changing capability of the second sub-signal processing module 2022 (e.g., processing the energy of the second sub-signal VCC to the energy of the fourth sub-signal VCC').

[0047] Understandably, when there is a difference between the energy of the third sub-signal VAA' and the energy of the first sub-signal VAA, or between the energy of the fourth sub-signal VCC' and the energy of the second sub-signal VCC, or when the difference is large, the first sub-signal processing module 2021 and the second sub-signal processing module 2022 are set to process them separately. Similarly, this can improve the reliability of the signal processing module 202 in processing the first signal V1, thereby reducing the risk that the large difference between the energy of the third sub-signal VAA' and the energy of the first sub-signal VAA, or between the energy of the fourth sub-signal VCC' and the energy of the second sub-signal VCC, will prevent them from being processed by the same sub-signal processing module at the same time, resulting in the energy of the output second sub-signal VCC failing to meet the requirements of the source drive module 30.

[0048] The first sub-signal processing module 2021 may include one of an impedance reduction circuit and a low-dropout linear regulator, and the second sub-signal processing module 2022 may include the other of the impedance reduction circuit and the low-dropout linear regulator. Specifically, as shown... Figure 1 As shown, this description takes the first sub-signal processing module 2021, which includes an impedance reduction circuit, and the second sub-signal processing module 2022, which includes a low-dropout linear regulator, as an example.

[0049] The impedance reduction circuit (included in the first sub-signal processing module 2021) may include at least one diode, for example... Figure 1 The impedance reduction circuit can also include multiple diodes connected in series. Since a diode experiences a voltage drop across its terminals when forward-biased and this voltage drop remains almost constant, and different types of diodes have different forward voltage drops (generally ranging from 0.5V to 0.7V), the impedance reduction circuit in this embodiment can use one or more diodes connected in series to achieve voltage reduction. However, it is important to note that the current flowing through each diode in the impedance reduction circuit must not exceed its maximum forward current to avoid overcurrent damage. Of course, the impedance reduction circuit can also include resistors connected in parallel.

[0050] Specifically, a low-dropout linear regulator, as a type of low-power linear regulator, typically has extremely low intrinsic noise and a high power supply rejection ratio. Its basic working principle is as follows: When the system is powered on, if the enable pin is at a high level, the circuit starts up. The constant current source circuit provides bias to the entire circuit, the reference voltage is quickly established, and the output voltage rises continuously with the input. When the output is about to reach the specified value, the output feedback voltage obtained by the feedback network is also close to the reference voltage value. At this time, the error amplifier amplifies the small error signal between the output feedback voltage and the reference voltage, and then amplifies it to the output through the regulating transistor, thus forming negative feedback and ensuring that the output voltage is stable at the specified value. Similarly, if the input voltage or output current changes, this closed-loop circuit will keep the output voltage constant, i.e., Vout=(R1+R2) / R2×Vref, thereby achieving regulated output.

[0051] Understandably, in this embodiment, the first signal V1 and the second signal V2 can be understood as voltage signals. In conjunction with the above discussion, the essence of the signal processing module 202 can be to perform voltage conversion to boost or buck the first signal V1 to obtain the second signal V2. Furthermore, the second signal V2, compared to the first signal V1, can generate different current signals when applied to the source drive module 30, thereby changing the magnitude of the current transmitted by the devices in the source drive module 30. Combined with the principle of electromagnetism, this can change (for example, to reduce) the EMI radiation generated by the source drive module 30.

[0052] In one embodiment, such as Figure 1 As shown, the first sub-signal VAA is also used to generate a high-voltage signal VGH to be applied to the GOA circuit of the display panel 10, and the second sub-signal VCC is also used to be applied to the timing control module 203 of the control motherboard 20. The control motherboard 20 may include a motherboard body 204, which carries integrated circuits or chips such as the power management module 201 and the timing control module 203. At least one of the GOA circuit and the source driver module 30 may be located on the display panel 10, or electrically connected to the display panel 10 by means of, but not limited to, bonding. For example, the GOA circuit can control multiple rows of sub-pixels 101 to be turned on sequentially, so as to cooperate with the source driver module 30 to sequentially apply the data signal Vdata of the multiple rows of sub-pixels 101 to the corresponding multiple rows of sub-pixels 101. Both the GOA circuit and the source driver module 30 can be electrically connected to the timing control module 203, so that the data signal Vdata of the multiple rows of sub-pixels is sequentially applied to the corresponding multiple rows of sub-pixels 101 under the control of the timing control module 203.

[0053] Specifically, the first sub-signal VAA can generate a high-voltage signal VGH through, but is not limited to, a DC-DC power module. The DC-DC power module can also be mounted on the motherboard body 204, for example, it can be directly mounted on the motherboard body 204. Furthermore, the power management module 201 can also generate other voltage signals different from the first signal V1, also through, but not limited to, a low-voltage signal VGL, generated by the DC-DC power module. Both the high-voltage signal VGH and the low-voltage signal VGL can be loaded onto the GOA circuit to drive it. The second sub-signal VCC can include, but is not limited to, image data signals Vdata. It can be loaded onto the timing control module 203 and converted by the timing control module 203 to generate multiple data signals Vdata corresponding to the multiple sub-pixels 101 mentioned above, as well as related control signals. Furthermore, combined with the third sub-signal VAA' mentioned above, which is loaded onto the source driver module 30, the source driver module 30 can be controlled to transmit the corresponding multiple data signals Vdata to the multiple sub-pixels 101.

[0054] Wherein, the first sub-signal VAA includes an analog voltage signal, and the second sub-signal VCC includes a digital voltage signal. Specifically, the analog voltage signal (included in the first sub-signal VAA) can be generated into a corresponding digital voltage signal through, but not limited to, an analog signal acquisition device, or it can be directly transmitted as an analog voltage signal. In this embodiment, there is no limitation on whether the third sub-signal VAA' is an analog voltage signal or a digital voltage signal; the digital voltage signal (included in the second sub-signal VCC) can be generated into a corresponding analog voltage signal through, but not limited to, an analog signal generator, or it can be directly transmitted as a digital voltage signal. In this embodiment, there is no limitation on whether the fourth sub-signal VCC' is an analog voltage signal or a digital voltage signal.

[0055] In one embodiment, combined with Figure 1 and Figure 2 As shown, the source drive module 30 includes a transistor 302, one of the source S or drain D of the transistor 302 is grounded, and the gate G of the transistor 302 is electrically connected to the signal processing module 202; wherein, the second signal V2 is a voltage signal, and the magnitude of the voltage at the gate G of the transistor 302 is related to the magnitude of the voltage corresponding to the second signal V2. The transistor 302 can be a switching transistor.

[0056] Specifically, the source driving module 30 may include multiple sub-source driving modules 30, each of which can be electrically connected to corresponding multiple columns of sub-pixels 101 to transmit corresponding multiple data signals Vdata. Further, each sub-source driving module 30 may include multiple transistors 302, and at least one transistor 302 as described above is present. Specifically, according to the current formula after transistor 302 is turned on, Id = 1 / 2 * β * (W / L) * (VGS - VTH) 2 (β is the AC current amplification factor of the transistor, representing the transistor's current amplification capability for alternating AC signals; "W / L" is the aspect ratio of the transistor; VGS is the voltage difference between the gate and source of the transistor; and VTH is the threshold voltage of the transistor.) It can be seen that β, "W / L", and VTH are all constants. Therefore, the on-state current Id of transistor 302 can be considered positively correlated with the voltage difference VGS between the gate and source of transistor 302. Of course, the magnitude of the voltage at the drain D of transistor 302 can also be related to the magnitude of the voltage corresponding to the second signal V2.

[0057] Understandably, this embodiment uses the source S of transistor 302 being grounded as an example for explanation. The gate G of transistor 302 is electrically connected to the signal processing module 202, and the magnitude of the voltage of the gate G of transistor 302 is positively correlated with the magnitude of the voltage corresponding to the second signal V2. That is, it can be considered that the conduction current Id of transistor 302 is related to the magnitude of the voltage corresponding to the second signal V2. As discussed above, the signal processing module 202 can be reasonably configured to process the first signal V1 generated by the power management module 201. For example, it can be configured to ensure that the energy of the second signal V2 is greater than the energy of the first signal V1, so that the second signal V2 acts on the sub-source driving module 30 compared to the first signal V1. This can reduce the voltage difference VGS between the gate and source of transistor 302, thereby reducing the conduction current Id of transistor 302. Combined with the principle of electromagnetism, the EMI radiation generated by the source driving module 30 can be changed (for example, weakened).

[0058] Specifically, Figure 3 The image shows the waveform of EMI radiation measured in the source drive module of the prior art. Figure 4 The image shows the waveform of EMI radiation measured by the source drive module in this invention. The horizontal axis represents time t (the unit of time t is not limited here), and the vertical axis represents statistical values ​​in dB. Figure 3 and Figure 4 Waveform L1 in the diagram is considered the critical waveform for EMI radiation; anything above waveform L1 is considered to have excessive EMI radiation. Figure 3 and Figure 4 Waveform L2 is 6 dB smaller than waveform L1.

[0059] Understandable, Figure 3 Since the existing technology does not include a signal processing module 202, it can be assumed that the energy of the signal applied to the source drive module 30 is relatively large, resulting in a larger amplitude of the first EMI radiation waveform L3. Figure 3 The waveform even exceeded waveform L2, and the minimum distance between it and waveform L1 was 1.62 dB, therefore the first EMI radiation waveform L3 was considered unqualified; Figure 4 In this invention, since a signal processing module 202 is provided, it can be assumed that the energy of the signal applied to the source drive module 30 is relatively small. Therefore, the amplitude of the generated second EMI radiation waveform L4 is smaller than the amplitude of the first EMI radiation waveform L3. Figure 4 The second EMI radiation waveform L4 is located below waveform L2, meaning the distance between the second EMI radiation waveform L4 and waveform L1 is greater than 6dB. Therefore, the second EMI radiation waveform L4 is considered to be qualified.

[0060] Specifically, this embodiment uses the example of the source driver module 30 being electrically connected to the display panel 10 via a bonding method for illustration. For example... Figure 1 As shown, multiple sub-source driving modules 30 spaced apart in the source driving module 30 can be connected to at least one side of the display panel 10. Furthermore, a flexible flat cable 401 and a connecting plate 402 can be provided between the source driving module 30 and the control motherboard 20. The flexible flat cable 401 is connected between the control motherboard 20 and the connecting plate 402. A first pin 403 can be provided on the side of the connecting plate 402 near the flexible flat cable 401, and a second pin 404 can be provided on the side of the control motherboard 20 near the flexible flat cable 401. The plugs at both ends of the flexible flat cable 401 can be electrically connected to the first pin 403 and the second pin 404 respectively to realize the electrical connection between the control motherboard 20 and the connecting plate 402. The flexible flat cable 401 can also be replaced by flexible printed circuits. Furthermore, the signal processing module 202 can be mounted on the connecting board 402. The side of the connecting board 402 near the source drive module 30 and the side of the source drive module 30 near the connecting board 402 can also be electrically connected by means of, but not limited to, pin connection.

[0061] This invention provides an electronic terminal, which may include any of the display modules described above.

[0062] This invention provides a display module and its driving method. By setting a signal processing module electrically connected between a source driving module and a power management module, a first signal generated by the power management module is loaded, and the first signal is processed into a second signal loaded onto the source driving module. This ensures that the energy of the second signal is different from that of the first signal. By reasonably setting the signal processing module, the energy of the second signal can be increased or decreased compared to the first signal. This can reduce EMI radiation generated by the source driving module or improve the problem of inaccurate signal transmission caused by low energy, effectively expanding the application range of the display module.

[0063] The display module and its driving method provided by the embodiments of the present invention have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only for the purpose of helping to understand the technical solutions and core ideas of the present invention. Those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A display module, characterized by The display module comprises: a display panel comprising a plurality of pixel units; a power management module; a source driving module electrically connected between the plurality of pixel units and the power management module; wherein the display module further comprises a signal processing module electrically connected between the source driving module and the power management module, the signal processing module is loaded with a first signal generated by the power management module, and processes the first signal into a second signal loaded to the source driving module, the energy of the second signal is less than the energy of the first signal; wherein the source driving module comprises: a transistor, one of the source or the drain of the transistor is grounded, and the gate of the transistor is electrically connected to the signal processing module to receive the second signal; wherein the second signal is a voltage signal, and the voltage of the gate of the transistor is positively correlated with the voltage corresponding to the second signal.

2. The display module of claim 1, wherein, The first signal comprises a first sub-signal and a second sub-signal, and the second signal comprises a third sub-signal and a fourth sub-signal. The signal processing module comprises: a first sub-signal processing module, which is loaded with the first sub-signal generated by the power management module, and processes the first sub-signal into a third sub-signal loaded to the source driving module, the energy of the third sub-signal is less than the energy of the first sub-signal.

3. The display module of claim 2, wherein, The difference between the energy of the third sub-signal and the energy of the first sub-signal is greater than the difference between the energy of the fourth sub-signal and the energy of the second sub-signal.

4. The display module of claim 2 or 3, wherein, The first sub-signal processing module comprises one of an impedance step-down circuit and a low-dropout linear regulator.

5. The display module of claim 4, wherein, The signal processing module further comprises: a second sub-signal processing module, which is loaded with the second sub-signal generated by the power management module, and processes the second sub-signal into a fourth sub-signal loaded to the source driving module, the energy of the fourth sub-signal is less than the energy of the second sub-signal.

6. The display module of claim 5, wherein, The second sub-signal processing module comprises the other of the impedance step-down circuit and the low-dropout linear regulator.

7. The display module of claim 2 or 3, wherein, The first sub-signal comprises an analog voltage signal, and the second sub-signal comprises a digital voltage signal.

8. The display module of claim 1, wherein, The display module comprises a control mainboard, the control mainboard comprises the power management module, and the source driving module is arranged between the plurality of pixel units and the control mainboard; wherein the signal processing module is arranged on the control mainboard; or a flexible flat cable and a connection plate are arranged between the source driving module and the control mainboard, the flexible flat cable is connected between the control mainboard and the connection plate, and the signal processing module is arranged on the connection plate.

9. An electronic terminal, characterized in that The display module comprises any one of the display modules according to claims 1 to 8.

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