Control system, display device and light leakage processing method

Abstract

The invention provides a control system, a display device and a light leakage processing method. The control system comprises a detection module, a processing module and a control module. The detection module is connected with the display panel, obtains the frame pressure of the frame area, and generates a detection signal when the frame pressure is greater than a preset pressure; the processing module is connected with the detection module, the processing module receives the detection signal and determines light leakage information based on the detection signal, the light leakage information at least comprises a light leakage level and a light leakage position, and the light leakage position is located in the frame area; the control module is connected with the processing module and the backlight module, receives the light leakage level and the light leakage position and adjusts the display brightness of the light leakage position according to the light leakage level. According to the control system, the light leakage information can be determined based on the frame pressure of the display device, and the display brightness of the corresponding position is precisely controlled and adjusted based on the light leakage information, so that the light leakage problem is avoided, the display panel can perform normal display, and the user experience is improved.

Description

Technical Field

[0001] This application relates to the field of display technology, and more specifically, to a control system, a display device, and a light leakage processing method. Background Technology

[0002] Liquid crystal display (LCD) panels have advantages such as high image quality, low power consumption, and thin body. Among them, in-plane switching (IPS) panels are widely used in monitors, televisions, and smart interactive flat panels due to their superior viewing angle and good color shift control.

[0003] However, IPS panels are prone to light leakage when subjected to stress, which affects the display effect and results in a poor user experience. Summary of the Invention

[0004] To address the aforementioned issues, this application provides a control system, a display device, and a light leakage processing method, aiming to resolve the problem of light leakage in IPS panels due to stress, which in turn affects the display effect of the IPS panel and results in a poor user experience.

[0005] In a first aspect, this application provides a control system applied to a display device having a display panel and a backlight module. The display panel includes a display area and a bezel area surrounding the display area. The control system includes a detection module, a processing module, and a control module. The detection module is connected to the display panel and is used to acquire the bezel pressure in the bezel area and generate a detection signal when the bezel pressure is greater than a preset pressure. The processing module is connected to the detection module and is used to receive the detection signal and determine light leakage information based on the detection signal. The light leakage information includes at least a light leakage level and a light leakage position, wherein the light leakage position is located in the bezel area. The control module is connected to the processing module and the backlight module and is used to receive the light leakage level and the light leakage position and adjust the display brightness of the light leakage position according to the light leakage level.

[0006] Based on the control system provided in this application, the detection module performs real-time detection of the frame pressure in the detection frame area, which can provide real-time information on the light leakage status of the frame area. When the detection module detects that the frame pressure is greater than the preset pressure, it generates a corresponding detection signal and sends it to the processing module, resulting in a fast response speed. After receiving the detection signal, the processing module determines the corresponding light leakage level and location, and sends the light leakage level and location to the control module. After receiving the light leakage level, the control module analyzes the light leakage level to determine the intensity that needs to be adjusted (e.g., dimming level), and adjusts the brightness of the backlight module at the light leakage location based on the adjusted intensity. This achieves precise control and adjustment of the display brightness of the corresponding area of ​​the display panel, thereby avoiding light leakage in the frame area of ​​the display panel, enabling the display panel to display normally, and thus improving the user experience.

[0007] In one possible implementation, the detection module includes multiple pressure sensors connected to the processing module. The border area includes multiple segments connected in sequence, with an angle between the extending directions of any two adjacent segments. Each segment is provided with at least one pressure sensor to detect the border pressure at different positions in the border area.

[0008] In this implementation, pressure sensors are used to detect the frame pressure in different sections of the frame area to improve the detection accuracy of the detection module, thereby improving the reliability of the control module in eliminating light leakage. At the same time, when one or more pressure sensors fail to detect, the remaining pressure sensors can still perform detection, thus avoiding the problem that the detection module cannot perform normal detection due to the failure of a single pressure sensor when only one pressure sensor is used for detection, thereby improving the detection reliability of the detection module.

[0009] In one possible implementation, the processing module further includes a spatial filter connected to the detection module. The spatial filter receives the detection signal and is used to determine the location of light leakage based on the detection signal.

[0010] In one possible implementation, the processing module includes a SOC chip, which is connected to a spatial filter, a detection module, and a control module, respectively. The SOC chip receives the detection signal and the light leakage position. The SOC chip is used to determine the light leakage level based on the detection signal and preset information, and then sends the light leakage level and the light leakage position to the control module.

[0011] In one possible implementation, the processing module further includes a time filter connected to the control module. The time filter is used to detect the grayscale value of the display panel and send an adjustment signal to the control module when the grayscale value is less than a preset value. The control module is used to adjust the display brightness of the light leakage position according to the light leakage level and the adjustment signal.

[0012] In one possible implementation, the control system further includes an image compensation module, which is connected to the processing module and the backlight module. The image compensation module is used to receive the light leakage level and the light leakage position, and adjust the brightness of the LEDs at the light leakage position according to the light leakage level.

[0013] Secondly, embodiments of this application provide a display device, which includes a display panel, a backlight module, and a control system of any optional manner in the first aspect; the backlight module provides backlight to the display panel, and the control system is connected to the display panel and the backlight module.

[0014] In one possible implementation, the display panel includes a display area and a bezel area surrounding the display area, and the backlight module includes multiple backlight areas, each of which includes multiple LEDs, and the multiple backlight areas provide backlight to the display area and the bezel area.

[0015] In one possible implementation, the multiple backlight areas include a first backlight area and a second backlight area; the first backlight area is configured to provide backlight to the display area; the second backlight area is disposed around the first backlight area and is configured to provide backlight to the bezel area.

[0016] Thirdly, embodiments of this application provide a light leakage processing method, applied to the control system described in any optional manner of the first aspect, the method comprising:

[0017] The border pressure of the border area is obtained, and a detection signal is generated when the border pressure is greater than the preset pressure.

[0018] Leakage information is determined based on the detection signal. The leakage information includes the leakage level and the leakage location, where the leakage location is located in the border area.

[0019] Adjust the display brightness at the location of the light leak according to the level of light leak. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of a display device provided in an embodiment of this application;

[0021] Figure 2 This is a schematic diagram of the structure of another display device provided in the embodiments of this application;

[0022] Figure 3 This is a schematic diagram of another display device provided in an embodiment of this application;

[0023] Figure 4 This is a schematic diagram of the structure of a backlight module provided in an embodiment of this application;

[0024] Figure 5 This is a schematic diagram of another display device provided in the embodiments of this application;

[0025] Figure 6 This is a schematic diagram of another display device provided in the embodiments of this application;

[0026] Figure 7 This is a schematic diagram of the module structure of a control system provided in an embodiment of this application;

[0027] Figure 8 This is a schematic diagram of the module structure of a control system provided in an embodiment of this application;

[0028] Figure 9 This is a schematic diagram of another display device provided in the embodiments of this application;

[0029] Figure 10 This is a schematic flowchart of a light leakage processing method provided in an embodiment of this application.

[0030] Explanation of icon numbers:

[0031] 1. Control system; 11. Detection module; 111. Pressure sensor; 12. Processing module; 121. Spatial filter; 122. SOC chip; 123. Time filter; 13. Control module; 14. Image compensation module; 2. Display panel; 2A. Display area; 2B. Bezel area; 3. Backlight module; 3A. First backlight area; 3B. Second backlight area. Detailed Implementation

[0032] In the following description, specific details such as particular system architectures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of this application. However, those skilled in the art will understand that this application may also be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, devices, and circuits have been omitted so as not to obscure the description of this application with unnecessary detail.

[0033] Liquid crystal display (LCD) panels are widely used in various devices due to their advantages such as high image quality, low power consumption, and thin design. Examples include Vertical Alignment (VA) panels, Twisted Nematic (TN) panels, and IPS panels. Among these, IPS panels, with their superior viewing angles, excellent color shift control, rich color gradation, and accurate color, are widely used in devices such as MNTs, TVs, and smart interactive flat panels. To achieve wide viewing angles, the liquid crystal molecules in IPS panels are designed to align parallel to the substrate, enhancing the visual experience. However, when subjected to external forces (such as touch pressure or compression during transportation), light leakage from the backlight module in the IPS panel may occur at the edges, resulting in light leakage and affecting the display quality, leading to a poor user experience.

[0034] To address this, this application provides a control system, a display device, and a light leakage processing method. The control system can determine light leakage information based on the frame pressure of the display device, and accurately control and adjust the display brightness at the corresponding position based on the light leakage information to avoid light leakage problems, enabling the display panel to display normally and improve the user experience.

[0035] The control system, display device, and light leakage processing method provided in this application will be described exemplarily below with reference to the accompanying drawings.

[0036] like Figure 1 As shown, this application provides a display device, including a control system 1 and a display panel 2. The control system 1 and the display panel 2 are connected. The control system 1 is used to control the display panel 2 to display images. Specifically, the control system 1 can receive image or video signals from external devices (such as computers, TV boxes, etc.) and perform corresponding decoding, conversion and other processing. Then, based on the processed signals, it controls the brightness and color of the corresponding pixels in the display panel 2 so that the display panel 2 can display images normally.

[0037] Optionally, the display panel 2 provided in this application may be a VA panel, a TN panel, an IPS panel, or other liquid crystal display panels. This application does not impose specific restrictions on this.

[0038] The display panel 2 includes a display area and a border area surrounding the display area. In one example, such as... Figure 2 As shown, the display device provided in this application also includes a backlight module 3. The control system 1 is connected to the backlight module 3. The backlight module 3 is configured to provide backlight to the display area 2A and the bezel area 2B, so that the display panel 2 can display the image normally.

[0039] In one example, the backlight module 3 may include a backlight source and a light guide plate. The backlight source emits light under the control of the control system 1, and the light guide plate diffuses and distributes the emitted light across the entire back of the display panel 2 to ensure the uniformity of the display panel 2. When the backlight source emits light, some light may not be fully utilized by the light guide plate and may escape towards the non-display area of ​​the backlight module 3 or the back side of the backlight module 3. To avoid wasting light energy, the backlight module 3 may also include a reflector to reflect the escaping light, thereby increasing the utilization rate of the emitted light and improving the brightness and uniformity of the display panel 2. The backlight module 3 may also include other optical components; this application does not impose specific limitations on these components.

[0040] The backlight includes multiple LEDs arranged in an array. The LEDs can be light-emitting diodes (LEDs). LEDs have high color saturation, long lifespan, and low energy consumption. When the backlight module 3 uses LEDs as the backlight, it can reduce energy consumption while enabling the display panel 2 to have a better display effect.

[0041] To enhance the visual effect by independently controlling the brightness of the display panel 2, the control system 1 can employ local dimming technology. This means the control system 1 can independently control and adjust the LEDs in the backlight module 3 according to display requirements. Correspondingly, the backlight module 3 can include multiple backlight zones, each containing multiple LEDs. These multiple backlight zones provide backlight to the display area 2A and the bezel area 2B. Furthermore, each backlight zone can be connected to the control system 1, enabling the control system 1 to independently control and adjust the LEDs in each backlight zone, thereby achieving local dimming. For example, when the display requirement is high brightness in the central area of ​​the display panel 2 and low brightness in the edge areas, the control system 1 can increase the brightness of the LEDs in the backlight zone corresponding to the central area, making the central area of ​​the display panel 2 brighter, while simultaneously decreasing the brightness of the LEDs in the backlight zone corresponding to the edge areas, or turning off some LEDs in the backlight zone corresponding to the edge areas, making the edge areas low-brightness. In this way, the control system 1 independently controls and adjusts the LEDs in multiple backlight areas to control and adjust the brightness of different areas of the display panel 2, enhancing the contrast in both bright and dark scenes. This improves the depth and color accuracy of the image displayed on the display panel 2, enabling it to present a better picture and enhance the user experience. Furthermore, compared to global backlight adjustment, local dimming only requires controlling and adjusting the LEDs in the corresponding backlight area, resulting in lower power consumption and energy savings.

[0042] Under external forces (such as touch pressure or squeezing during transportation), the bezel area 2B of the display panel 2 may experience light leakage. To avoid light leakage affecting the display effect of the display panel 2, in one example, the backlight area provided in this application may include a first backlight area 3A and a second backlight area 3B. The first backlight area 3A is configured to provide backlight to the display area 2A, and the second backlight area 3B is arranged around the first backlight area 3A, providing backlight to the bezel area 2B. The control system 1 can control the brightness of the LEDs in the first backlight area 3A and the second backlight area 3B respectively, thereby controlling and adjusting the display brightness of the display area 2A and the bezel area 2B. For example, when the display panel 2 displays dark or black content, to reduce power consumption, the control system 1 can correspondingly reduce the brightness of the second backlight area 3B or turn off some of the LEDs in the second backlight area 3B, thus reducing the power consumption of the display panel 2 while maintaining the display effect. For example, when there is light leakage in the bezel area 2B of the display panel 2, the control system 1 can turn off the LEDs in the second backlight area 3B to eliminate the light leakage in the bezel area 2B without adjusting the brightness of the LEDs in the first backlight area 3A. In this way, while ensuring the normal display of the display area 2A, the light leakage problem in the bezel area 2B is avoided, so that the display panel 2 can present a better picture display and improve the user experience.

[0043] In this example, such as Figure 4 As shown, the first backlight area 3A may include multiple LEDs arranged in an array (circular structure shown in the figure), and the second backlight area 3B includes multiple LEDs surrounding the first backlight area 3A, such as... Figure 4 As shown, the arrangement of LEDs in the first backlight area 3A and the second backlight area 3B can resemble a "U" shape. This U-shaped arrangement allows the light emitted from the LEDs to diffuse more evenly within the backlight module 3, reducing the brightness difference between the center (e.g., the center of the bezel area 2A) and the edges (e.g., the bezel area 2B), thereby improving the overall brightness uniformity of the display panel 2. Secondly, the U-shaped arrangement allows for more LEDs to be placed within a limited space, increasing the light source density while maintaining the slim design of the backlight module 3, making it suitable for lightweight development. Other arrangements of the LEDs in the first backlight area 3A and the second backlight area 3B can also be used; this application does not impose specific limitations on these arrangements.

[0044] In order for the control system 1 provided in this application to detect the light leakage information of the display panel 2 in real time and adjust the brightness of the LED beads accordingly to eliminate the light leakage in the bezel area 2B, in one example, such as Figure 5As shown, the control system 1 may include a detection module 11, a processing module 12, and a control module 13. The detection module 11 is connected to the display panel 2 to obtain the frame pressure of the frame area 2B and generates a detection signal when the frame pressure is greater than a preset pressure. The processing module 12 is connected to the detection module 11 and is used to receive the detection signal and determine light leakage information based on the detection signal. The control module 13 is connected to the processing module 12 and the backlight module 3. The control module 13 is used to receive the light leakage information and adjust the display brightness of the corresponding position in the frame area 2B based on the light leakage information to eliminate light leakage in the frame area 2B. The light leakage information determined by the processing module 12 includes at least the light leakage level and the light leakage position, wherein the light leakage position is located in the frame area 2B. The control module 13 receives the light leakage level and the light leakage position and adjusts the luminous brightness of the backlight module 3 at the light leakage position according to the light leakage level to adjust the display brightness of the display panel 2 accordingly, thereby eliminating light leakage in the frame area 2B.

[0045] Here, it can be understood that the preset pressure is the maximum pressure that the display panel 2 can withstand. When the pressure that the display panel 2 withstands is greater than the preset pressure, it may cause light leakage in the bezel area 2B of the display panel 2. Therefore, the detection module 11 provided in this application can detect the bezel pressure of the bezel area 2B in real time and compare the bezel pressure with the preset pressure. For example, it is assumed that the preset pressure is 2N (Newtons). When the detection module 11 detects that the bezel pressure is greater than 2N, the bezel area 2B may have light leakage. The detection module 11 will generate a detection signal and send the detection signal to the processing module 12. After receiving the detection signal indicating that the bezel pressure is too high and the bezel area 2B has light leakage, the processing module 12 will determine the light leakage information (i.e., light leakage level, light leakage location, etc.) based on the detection signal and send the light leakage information to the control module 13. The control module 13 adjusts the backlight brightness of the backlight module 3 at the corresponding position in the bezel area 2B based on the light leakage information, so as to adjust the display brightness of the display panel 2 accordingly. That is, the control module 13 reduces or turns off the backlight brightness of the backlight module 3 at the light leakage position based on the light leakage level, so as to eliminate the light leakage problem of the display panel 2.

[0046] Thus, by detecting the frame pressure of the frame area 2B in real time through the detection module 11, the light leakage status of the frame area 2B can be known in real time. When the detection module 11 detects that the frame pressure is greater than the preset pressure, it can generate a corresponding detection signal and send it to the processing module 12. The response speed is fast. After receiving the detection signal, the processing module 12 will determine the corresponding light leakage level and light leakage position, and send the light leakage level and light leakage position to the control module 13. After receiving the light leakage level, the control module 13 will analyze the light leakage level to determine the intensity that needs to be adjusted (such as the degree of dimming). Based on the adjusted intensity, the backlight brightness of the backlight module 3 at the light leakage position will be adjusted to achieve precise control and adjustment of the display brightness of the corresponding area of ​​the display panel 2, thereby avoiding the problem of light leakage in the frame area 2B of the display panel 2, so that the display panel 2 can display normally, thereby improving the user experience.

[0047] In one example, such as Figure 6 As shown, the detection module 11 may include multiple pressure sensors 111, which are connected to the processing module 12. The border area 2B includes multiple segments connected in sequence, with an angle between the extending directions of any two adjacent segments. Each segment is provided with at least one pressure sensor 111 to detect the border pressure at different positions in the border area 2B. For example, using... Figure 6 As shown, the frame area 2B includes four sequentially connected segments, with an angle of 90° between the extending directions of two adjacent segments. Each segment can be equipped with three pressure-sensitive sensors 111, meaning the three pressure-sensitive sensors 111 are located in different detection areas of each segment to detect the frame pressure at different positions in the frame area 2B. When several pressure-sensitive sensors 111 detect that the frame pressure in the corresponding detection area is greater than a preset pressure, a corresponding detection signal is generated and sent to the processing module 12. It is worth noting that the detection signals generated by different pressure-sensitive sensors 111 are different. The processing module 12 can determine multiple light leakage information (i.e., multiple light leakage positions and light leakage levels) based on the different detection signals and send the multiple light leakage information to the control module 13. The control module 13 can adjust the luminous brightness of the corresponding position of the backlight module 3 based on the multiple light leakage information to control and adjust the display brightness of the corresponding position of the frame area 2B of the display panel 2, thereby avoiding light leakage problems. In this way, by using multiple pressure sensors 111 to detect the frame pressure of different sections of the frame area 2B, the detection accuracy of the detection module 11 is improved, thereby improving the reliability of the control module 13 in eliminating light leakage. At the same time, when one or more pressure sensors 111 fail to detect, the remaining pressure sensors 111 can still perform detection, thus avoiding the problem that the detection module 11 cannot perform normal detection due to the failure of a single pressure sensor 111 when only one pressure sensor 111 is used for detection, thereby improving the detection reliability of the detection module 11.

[0048] Optionally, multiple pressure sensors 111 can be of the same model to ensure consistent detection performance. The specific number of pressure sensors 111 can be set according to actual needs. For example, if you want to save on manufacturing costs, you can set one pressure sensor 111 in each segment of the display panel 2. If you want to improve detection accuracy, you can set multiple pressure sensors 111 at intervals in each segment of the display panel 2. The distance between two adjacent pressure sensors 111 can be in the range of 1 cm to 5 cm. The smaller the distance between two adjacent pressure sensors 111, the higher the detection accuracy. This application does not impose specific limitations on this.

[0049] In one example, such as Figure 7 As shown, the processing module 12 includes a spatial filter 121, which is connected to the detection module 11. The spatial filter 121 receives the detection signal and determines the corresponding light leakage position on the frame area 2B based on the detection signal. That is, the spatial filter 121 can locate the position where the frame pressure exceeds the preset pressure based on the detection signal, so as to accurately locate the light leakage position of the display panel 2, thereby ensuring the reliability of the control module 13 in corresponding control.

[0050] In one example, such as Figure 7 As shown, the processing module 12 includes a system-on-chip (SOC). The SOC chip 122 is connected to the detection module 11, and is also connected to the spatial filter 121, the detection module 11, and the control module 13. The SOC chip 122 receives the detection signal from the detection module 11. The SOC chip 122 can determine the light leakage level based on the detection signal and preset information. It is worth noting that the preset information may include the brightness percentage and the light leakage coefficient. In this case, the detection signal can be referred to as the frame pressure, and the light leakage level can be obtained based on formula (1):

[0051] L=OC*P*n (1)

[0052] Where L is the light leakage level, OC is the bezel pressure of the display panel, P is the brightness percentage, and n is the light leakage coefficient.

[0053] The light leakage level obtained by processing module 12 is the light intensity leaked by the backlight module 3 through the display panel 2 when the display panel 2 is displaying a completely black screen, i.e., the light leakage intensity of the bezel area 2B. When the light leakage level is small, it may not have a significant impact on the display effect of the display panel 2. In this case, control module 13 can reduce the brightness of the corresponding LED in bezel area 2B based on the light leakage level without turning off the LED. When the light leakage level is large, it will affect the display effect of the display panel 2. In this case, control module 13 can determine the intensity that needs to be adjusted based on the light leakage level to dim or turn off the corresponding LED in bezel area 2B to ensure the display effect of the display panel 2. In this way, control module 13 can adjust the corresponding LED in bezel area 2B based on different light leakage levels, providing high adjustment flexibility.

[0054] In this example, the SOC chip 122 is also used to receive the light leakage position from the spatial filter 121 and synchronously send the light leakage position and light leakage level to the control module 13. This allows the control module 13 to receive both the light leakage position and light leakage level simultaneously, avoiding the asynchrony between the light leakage level and position when the spatial filter 121 provides the light leakage position alone and the SOC chip 122 provides the light leakage level alone. Thus, by synchronously sending the light leakage position and light leakage level to the control module 13 via the SOC chip 122, the control module 13 can simultaneously receive both the light leakage position and light leakage level and precisely adjust the display brightness at the light leakage position based on the light leakage level.

[0055] To reduce the processing load of the SOC chip 122, such as Figure 8 As shown, the spatial filter 121 can be directly connected to the control module 13 to send the leakage light position to the control module 13. At this time, the SOC chip 122 only receives the detection signal, that is, the signal sent by the SOC chip 122 to the control module 13 is only the leakage light level, so as to reduce the processing load of the SOC chip 122. The specific connection position of the spatial filter 121 can be set according to actual needs. This application does not impose specific restrictions on this.

[0056] Optionally, the SOC chip 122 can also access a light leakage photo, that is, a photo that can visually show that there is a light leakage problem in the display panel 2. The SOC chip 122 can analyze the light leakage photo and identify and locate the source of the light leakage problem to eliminate the light leakage problem and enable the display panel 2 to display normally. This will not be elaborated further.

[0057] When the display panel 2 has a high brightness, the light leakage in the bezel area 2B will not significantly affect the display effect, and there is no need to turn off the corresponding LEDs in the bezel area 2B. However, when the display panel 2 has a low brightness, or when the display panel 2 appears as a non-illuminating black, the light leakage in the bezel area 2B will significantly affect the display effect, and in this case, the corresponding LEDs in the bezel area 2B need to be turned off promptly. Therefore, in one example, such as... Figure 7 As shown, the processing module 12 also includes a time filter 123, which is connected to the control module 13. The time filter 123 is used to detect the gray value of the display panel 2 and send an adjustment signal to the control module 13 when the gray value is less than a preset value. The control module 13 is also used to adjust the display brightness of the light leakage position based on the adjustment signal and the light leakage level.

[0058] In this example, when the time filter 123 detects that the grayscale value of the display panel 2 is less than a preset value, it means that the display brightness of the display panel 2 is relatively dim. Light leakage in the bezel area 2B will significantly affect the display effect of the display panel 2. To avoid light leakage in the bezel area 2B affecting the user experience, the time filter 123 sends an adjustment signal to the control module 13. This allows the control module 13 to adjust the display brightness at the light leakage location based on the adjustment signal and the light leakage level, thereby avoiding the light leakage problem and improving the user experience. For example, the preset value can be set to 30%. When the grayscale value of the display panel 2 is below 30%, the display brightness of the display panel 2 is relatively dim. When the time filter 123 detects that the grayscale value of the display panel 2 is less than 30%, it sends an adjustment signal to the control module 13. This adjustment signal is equivalent to a turn-off signal. The control module 13 can turn off the LEDs at the corresponding position in the bezel area 2B based on the turn-off signal, making the display brightness at the corresponding position in the bezel area 2B zero, thus avoiding the light leakage problem.

[0059] Furthermore, assuming two preset values ​​can be set, one at 50% and the other at 30%, when the time filter 123 detects that the grayscale value of the display panel 2 is less than 50%, the light leakage problem in the bezel area 2B will affect the display effect of the display panel 2, but the impact is minor. The time filter 123 will send an adjustment signal to the control module 13. This adjustment signal is a signal to reduce brightness. The control module 13 can reduce the brightness of the LEDs at the corresponding position in the bezel area 2B based on this adjustment signal, thereby reducing the display brightness at the corresponding position in the bezel area 2B. When the time filter 123 detects that the grayscale value of the display panel 2 is less than 30%, the light leakage problem in the bezel area 2B will affect the display effect of the display panel 2, and the impact is significant. The time filter 123 will send an adjustment signal to the control module 13. This adjustment signal is a signal to turn off. The control module 13 can turn off the LEDs at the corresponding position in the bezel area 2B based on this adjustment signal, thereby eliminating the light leakage phenomenon.

[0060] The specific size and quantity of the preset values ​​can be set according to actual needs, and this application does not impose specific restrictions on them.

[0061] To optimize the display quality of display panel 2, in one example, such as Figure 9 As shown, the control system 1 also includes an image compensation module 14, which is connected to the processing module 12 and the backlight module 3. The image compensation module 14 is used to receive the light leakage level and light leakage position from the processing module 12, and adjust the brightness of the LEDs at the light leakage position according to the light leakage level, so as to adjust the display brightness of the border area 2B, making the brightness of the display panel 2 smoother, thereby optimizing the display quality of the display panel 2.

[0062] Optionally, the control module 13 may include a timing controller (TCON). The timing controller can execute the aforementioned local dimming technology. Specifically, the timing controller can independently control and adjust the LEDs in the backlight module 3 according to display requirements to enhance contrast in both bright and dark scenes, thereby improving the depth and color accuracy of the image displayed on the display panel 2. This results in a better image display and improved user experience. Furthermore, compared to global backlight adjustment, local dimming only requires controlling and adjusting the LEDs in the corresponding positions, resulting in lower power consumption and energy savings.

[0063] In summary, by using the detection module 11 to detect the frame pressure of the frame area 2B in real time, the light leakage status of the frame area 2B can be known in real time. When the detection module 11 detects that the frame pressure is greater than the preset pressure, it can generate a corresponding detection signal and send it to the processing module 12. The response speed is fast. After receiving the detection signal, the processing module 12 will determine the corresponding light leakage level and light leakage position, and send the light leakage level and light leakage position to the control module 13. After receiving the light leakage level, the control module 13 will analyze the light leakage level to determine the intensity that needs to be adjusted, and adjust the brightness of the backlight module 3 at the light leakage position based on the adjusted intensity, so as to achieve precise control and adjustment of the display brightness of the corresponding area of ​​the display panel 2, thereby avoiding the light leakage problem of the frame area 2B, enabling the display panel 2 to display normally, and thus improving the user experience. Furthermore, the control module 13 adopts local dimming technology, which can improve the depth and color accuracy of the image displayed on the display panel 2, enabling the display panel 2 to present a better picture display and improve the user experience. Compared with global backlight adjustment, local dimming only needs to control and adjust the corresponding LED beads, which consumes less power and saves energy.

[0064] like Figure 10 As shown in the embodiments of this application, a light leakage processing method is also provided, which is applied to, for example... Figures 1 to 9 The control system 1 shown includes a light leakage processing method comprising:

[0065] S101. Obtain the border pressure of the border area, and generate a detection signal when the border pressure is greater than the preset pressure;

[0066] For example, please refer to Figures 5 to 9 As shown, the control system 1 includes a detection module 11, a processing module 12 and a control module 13. The detection module 11 performs real-time detection of the frame pressure of the detection frame area 2B. When the detection module 11 detects that the frame pressure is greater than the preset pressure, it can generate a corresponding detection signal and send it to the processing module 12, resulting in a fast response speed.

[0067] For example, the detection module 11 may include multiple pressure sensors 111, which are connected to the processing module 12. The border area 2B includes multiple segments connected in sequence, with an angle between the extending directions of any two adjacent segments. Each segment is provided with at least one pressure sensor 111 to detect the border pressure at different positions in the border area 2B. For example, Figure 6As shown, the frame area 2B includes four sequentially connected segments, with an angle of 90° between the extending directions of two adjacent segments. Each segment can be spaced three pressure-sensitive sensors 111, meaning the three pressure-sensitive sensors 111 are located in different detection areas of each segment to detect the frame pressure at different positions in the frame area 2B. When several pressure-sensitive sensors 111 detect that the frame pressure in the corresponding detection area is greater than a preset pressure, a corresponding detection signal is generated and sent to the processing module 12. In this way, by using multiple pressure-sensitive sensors 111 to detect the frame pressure at different positions in the frame area 2B, the detection accuracy of the detection module 11 is improved, thereby improving the reliability of the control module 13 in eliminating light leakage. At the same time, when one or more pressure-sensitive sensors 111 fail to detect, the remaining pressure-sensitive sensors 111 can still perform detection, avoiding the problem that the detection module 11 cannot perform normal detection due to the failure of a single pressure-sensitive sensor 111 when only one pressure-sensitive sensor 111 is performing detection, thus improving the detection reliability of the detection module 11.

[0068] S102. Determine light leakage information based on the detection signal. The light leakage information includes the light leakage level and the light leakage location, wherein the light leakage location is located in the border area.

[0069] For example, such as Figure 7 As shown, the processing module 12 includes a spatial filter 121, which is connected to the detection module 11. The spatial filter 121 is used to determine the light leakage position based on the detection signal. That is, the spatial filter 121 can locate the position where the frame pressure exceeds the preset pressure based on the detection signal, so as to accurately locate the light leakage position of the display panel 2, thereby ensuring the reliability of the control module 13 in corresponding control.

[0070] For example, such as Figure 7 As shown, the processing module 12 also includes a SOC chip 122. The SOC chip 122 is connected to the spatial filter 121, the detection module 11 and the control module 13 respectively. The SOC chip 122 receives the detection signal from the detection module 11 and the light leakage position from the spatial filter 121. The SOC chip 122 can determine the light leakage level based on the detection signal and preset information, and send the light leakage level and light leakage position to the control module 13.

[0071] For example, such as Figure 7As shown, the processing module 12 also includes a time filter 123, which is connected to the control module 13. The time filter 123 is used to detect the grayscale value of the display panel 2 and send an adjustment signal to the control module 13 when the grayscale value is less than a preset value. The control module 13 is also used to adjust the display brightness of the corresponding position of the bezel area 2B based on the adjustment signal. When the time filter 123 detects that the grayscale value of the display panel 2 is less than the preset value, it means that the display brightness of the display panel 2 is relatively dark. The light leakage problem of the bezel area 2B will have a significant impact on the display effect of the display panel 2. In order to avoid the light leakage of the bezel area 2B from affecting the user experience, the time filter 123 will send an adjustment signal to the control module 13, so that the control module 13 can adjust the display brightness of the corresponding position of the bezel area 2B based on the adjustment signal to avoid the light leakage problem and improve the user experience.

[0072] S103. Adjust the display brightness of the light leakage position according to the light leakage level.

[0073] For example, please refer to Figures 5 to 9 As shown, the control system 1 includes a control module 13, which is connected to the processing module 12 and the backlight module 3. The control module 13 is used to receive light leakage information (i.e., light leakage level and light leakage location), analyze the light leakage level to determine the intensity that needs to be adjusted (e.g., dimming level), and then adjust the brightness of the backlight module 3 at the light leakage location based on the adjusted intensity, so as to achieve precise control and adjustment of the display brightness of the corresponding area of ​​the display panel 2, thereby avoiding the problem of light leakage in the bezel area 2B of the display panel 2, enabling the display panel 2 to display normally, thereby improving the user experience.

[0074] It should be understood that, when used in this application specification and the appended claims, the term "comprising" indicates the presence of the described features, integrals, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or a collection thereof.

[0075] It should also be understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0076] Furthermore, in the description of this application and the appended claims, the terms "first," "second," "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0077] References to "one embodiment" or "some embodiments" as described in this specification mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.

[0078] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included within the protection scope of this application.

Claims

1. A control system (1), characterized in that, An application to a display device having a display panel (2) and a backlight module (3), the display panel (2) including a display area (2A) and a bezel area (2B) surrounding the display area (2A); the control system (1) includes: The detection module (11) is connected to the display panel (2). The detection module (11) is used to obtain the border pressure of the border area (2B) and generate a detection signal when the border pressure is greater than a preset pressure. A processing module (12) is connected to the detection module (11). The processing module (12) is used to receive the detection signal and determine light leakage information based on the detection signal. The light leakage information includes at least the light leakage level and the light leakage position, wherein the light leakage position is located in the border area (2B). The control module (13) is connected to the processing module (12) and the backlight module (3). The control module (13) is used to receive the light leakage level and the light leakage position, and adjust the display brightness of the light leakage position according to the light leakage level.

2. The control system (1) according to claim 1, characterized in that, The detection module (11) includes: Multiple pressure-sensitive sensors (111) are connected to the processing module (12). The frame area (2B) includes multiple segments connected in sequence, and there is an angle between the extension directions of any two adjacent segments. Each section is provided with at least one pressure sensor (111) to detect the frame pressure at different positions of the frame area (2B).

3. The control system (1) according to claim 1, characterized in that, The processing module (12) includes: A spatial filter (121) is connected to the detection module (11). The spatial filter (121) receives the detection signal and is used to determine the light leakage position based on the detection signal.

4. The control system (1) according to claim 3, characterized in that, The processing module (12) further includes: The SOC chip (122) is connected to the spatial filter (121), the detection module (11), and the control module (13) respectively. The SOC chip (122) receives the detection signal and the light leakage position. The SOC chip (122) is used to determine the light leakage level based on the detection signal and preset information, and send the light leakage level and the light leakage position to the control module (13).

5. The control system (1) according to claim 4, characterized in that, The processing module (12) further includes: A time filter (123) is connected to the control module (13). The time filter (123) is used to detect the gray value of the display panel (2) and send an adjustment signal to the control module (13) when the gray value is less than a preset value. The control module (13) is used to adjust the display brightness of the light leakage position according to the light leakage level and the adjustment signal.

6. The control system (1) according to any one of claims 1-5, characterized in that, The control system (1) further includes: Image compensation module (14) is connected to the processing module (12) and the backlight module (3). The image compensation module (14) is used to receive the light leakage level and the light leakage position, and adjust the brightness of the lamp beads at the light leakage position according to the light leakage level.

7. A display device, characterized in that, The display device includes: Display panel (2); A backlight module (3) provides backlight to the display panel (2); and, The control system (1) as described in any one of claims 1-6 is connected to the display panel (2) and the backlight module (3).

8. The display device according to claim 7, characterized in that, The display panel (2) includes a display area (2A) and a border area (2B) surrounding the display area (2A). The backlight module (3) includes multiple backlight areas, each of which includes multiple LEDs. The multiple backlight areas provide backlight to the display area (2A) and the border area (2B) respectively.

9. The display device according to claim 8, characterized in that, The plurality of backlight areas include: A first backlight area (3A), configured to provide backlight to the display area (2A); and, A second backlight area (3B) is disposed around the first backlight area (3A) and is configured to provide backlight to the frame area (2B).

10. A method for processing light leakage, characterized in that, Applied to the control system (1) as described in any one of claims 1-6, the method comprises: The border pressure of the border area is obtained, and a detection signal is generated when the border pressure is greater than a preset pressure. Based on the detection signal, light leakage information is determined, including light leakage level and light leakage location, wherein the light leakage location is located in the border area; Adjust the display brightness of the light leakage position according to the light leakage level.

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