Display device and control method thereof

Abstract

The application discloses a display device and a control method thereof. A memory in the display device stores first reference touch data of a display panel in a first stage (module stage) and second reference touch data of the display panel in a second stage (assembly stage, integration stage or stage after the integration stage) after the first stage. When the processing system determines that the touch function of the display panel is deteriorated according to the first reference touch data and the second reference touch data, the processing system sends an instruction to prohibit the display panel from entering the stage after the integration stage (when the second stage is the assembly stage or the integration stage), or generates second reference compensation touch data according to part of the second reference touch data, and controls the display panel to realize the touch function according to the second reference compensation touch data (when the second stage is the stage after the integration stage), thereby reducing the risk of the electronic product with touch malfunction flowing into the market and the risk of the electronic product presenting the touch malfunction.

Description

Technical Field

[0001] This application relates to the field of electronic technology, and in particular to a display device and its control method. Background Technology

[0002] Currently, touch test data for electronic products at different stages are stored on their respective local computer hard drives. The data is not shared, making it impossible to detect deterioration trends in a timely manner. This makes it easy for defective electronic products to enter the market. Furthermore, analyzing defective electronic products in the market requires retrieving touch test data from the local computer hard drives corresponding to different stages to verify the status of each stage. This is not conducive to problem analysis and results in electronic products entering the market with a consistently low yield rate. Summary of the Invention

[0003] This application provides a display device and its control method to solve the above-mentioned technical problems.

[0004] In a first aspect, this application provides a display device, comprising:

[0005] The display panel is used for displaying images and enabling touch functionality;

[0006] The memory is used to store the first reference touch data of the display panel in the first stage and the second reference touch data in the second stage after the first stage;

[0007] A processing system, electrically connected to the display panel and the memory, is used to determine that the touch function of the display panel has deteriorated when the difference between the first reference touch data and the second reference touch data exceeds a threshold.

[0008] The display panel is formed into a display module through a module stage, the display module is formed into a semi-finished product through an assembly stage, and the semi-finished product is formed into the display device through an integration stage. The first stage is the module stage, and the second stage is the assembly stage, the integration stage, or a stage located after the integration stage.

[0009] When the second stage is the assembly stage or the integration stage, and the processing system determines that the touch function of the display panel has deteriorated, the processing system is further configured to: send an instruction to prevent the display panel from entering a stage located after the integration stage;

[0010] In the second stage, which is a stage following the integration stage, and when the processing system determines that the touch function of the display panel has deteriorated, the processing system is further configured to: generate second reference compensation touch data based on a portion of the second reference touch data, and control the display panel to implement touch function based on the second reference compensation touch data.

[0011] Secondly, this application also provides a control method for a display device, applied to a display device including a display panel, a memory, and a processing system, the control method for the display device including:

[0012] The memory is controlled to store the first reference touch data of the display panel in the first stage and the second reference touch data in the second stage after the first stage;

[0013] The control system determines that the touch function of the display panel has deteriorated when the difference between the first reference touch data and the second reference touch data exceeds a threshold; and

[0014] At least when the touch function of the display panel is not deteriorated, the display panel is controlled to display images and implement touch functions;

[0015] The display panel is formed into a display module through a module stage, the display module is formed into a semi-finished product through an assembly stage, and the semi-finished product is formed into the display device through an integration stage. The first stage is the module stage, and the second stage is the assembly stage, the integration stage, or a stage located after the integration stage.

[0016] The control method for the display device further includes:

[0017] When the second stage is the assembly stage or the integration stage, and the processing system determines that the touch function of the display panel has deteriorated, it sends an instruction to prevent the display panel from entering a stage located after the integration stage;

[0018] In the second stage, which is the stage following the integration stage, and when the processing system determines that the touch function of the display panel has deteriorated, the processing system is controlled to generate touch compensation data based on a portion of the data in the second reference touch data, and the display panel is controlled to implement touch function based on the touch compensation data.

[0019] In this application, based on a display device including a display panel for displaying images and implementing touch functionality, the memory in the display device is configured to store first reference touch data of the display panel in a first stage (module stage) and second reference touch data in a second stage after the first stage (assembly stage, integration stage, or stage after integration stage). The processing system in the display device is configured to, when determining that the touch functionality of the display panel has deteriorated based on the first reference touch data and the second reference touch data, send an instruction to prohibit the display panel from entering a stage after the integration stage (for the second stage being the assembly stage or the integration stage), or generate second reference compensation touch data based on a portion of the second reference touch data, and control the display panel to implement touch functionality based on the second reference compensation touch data (for the second stage being a stage after the integration stage). This reduces the risk of electronic products with poor touch functionality entering the market and reduces the risk of electronic products exhibiting poor touch functionality. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings, wherein the same reference numerals in the following description denote the same parts.

[0022] Figure 1 This is a schematic diagram of the display device provided in an embodiment of this application.

[0023] Figure 2 This is a schematic diagram of multiple matrices corresponding to multiple stages of the display panel provided in the embodiments of this application.

[0024] Figure 3 and Figure 4 The diagram shows two cases of matrix representation provided in the embodiments of this application.

[0025] Figure 5 A flowchart of a control method for a display device provided in an embodiment of this application. Detailed Implementation

[0026] The technical solutions of the embodiments of this application 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 this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the protection scope of this application.

[0027] In the embodiments of this application, "at least one" refers to one or more; "multiple" refers to two or more. In the description of this application, the terms "first," "second," "third," etc., are used only for the purpose of distinguishing descriptions and should not be construed as indicating or implying relative importance, nor should they be construed as indicating or implying order.

[0028] References such as “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 terms “comprising,” “including,” “having,” and variations thereof, as used in this specification, mean “including, but not limited to,” unless otherwise specifically emphasized.

[0029] It should be noted that in the embodiments of this application, "and / or" describes the relationship between associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. In addition, the character " / ", unless otherwise specified, generally indicates that the associated objects before and after it are in an "or" relationship.

[0030] It should be noted that in the embodiments of this application, "connection" can be understood as electrical connection. The connection between two electrical components can be a direct or indirect connection between the two electrical components. For example, the connection between A and B can be a direct connection between A and B, or an indirect connection between A and B through one or more other electrical components.

[0031] This application provides a display device that is applied to electronic devices, including mobile phones, smartwatches, smart bracelets, smart armbands, smart ankle bracelets, smart earrings, smart rings, smart glasses, and headphones. The following description uses a smartwatch as an example of an electronic device.

[0032] In some embodiments, combined with Figure 1 and Figure 2As shown, the above-mentioned display device 100 includes: a display panel 10 for displaying images and implementing touch functions; a memory 20 for storing first reference touch data BTD1 of the display panel 10 in a first stage T1 and second reference touch data BTD2 in a second stage T2 after the first stage T1; and a processing system 30 electrically connected to the display panel 10 and the memory 20 for determining that the touch function of the display panel 10 has deteriorated when the difference between the first reference touch data BTD1 and the second reference touch data BTD2 exceeds a threshold.

[0033] In this embodiment, the display panel 10 may include at least one of a liquid crystal panel and a self-emissive panel. The display panel 10 may include a display layer for displaying images and a touch layer for implementing touch functionality. Of course, the touch electrodes in the touch layer may also be reused with at least some of the electrodes in the display layer. This embodiment does not limit the specific method by which the display panel 10 implements touch functionality through the touch electrodes; for example, it may be, but is not limited to, a self-capacitive or mutual-capacitive method.

[0034] Specifically, the display panel 10 needs to go through multiple stages (at least including the first stage T1 and the second stage T2 after the first stage T1) before it can be formed into an electronic terminal (i.e., display device 100) and enter the market. It can be assumed that in the first stage T1, the aforementioned memory 20 can be electrically connected to the display panel 10 through a bonding method, so as to store at least the first reference touch data BTD1 of the display panel 10 in the first stage T1. In the second stage T2, the processing system 30 is also at least electrically connected to the memory 20 to acquire at least the first reference touch data BTD1 of the display panel 10 in the first stage T1 and the second reference touch data BTD2 of the second stage T2 after the first stage T1. Using the first reference touch data BTD1 as a comparison standard, the degree of difference between the second reference touch data BTD2 and the first reference touch data BTD1 is determined to determine whether the touch function of the display panel 10 has deteriorated.

[0035] Specifically, such as Figure 2 As shown, the display panel 10 forms a display module through a module stage t1, the display module forms a semi-finished product through an assembly stage t2, and the semi-finished product forms the display device 100 through an integration stage t3; wherein, the first stage T1 is the module stage t1, and the second stage T2 is the assembly stage t2, the integration stage t3, or a stage located after the integration stage t3 (i.e., the shipping stage t4).

[0036] Taking the display panel 10 as a self-emissive panel as an example, before the module stage t1, thin film transistors can be manufactured on the substrate through array process to form an array substrate, and self-emissive devices can be formed in the pixel opening area of ​​the array substrate. Then, the array substrate and the opposing substrate are bonded through cell assembly process. The opposing substrate is the "upper substrate" bonded to the array substrate, and its function is to seal the OLED devices and provide support. In the module stage t1, the structure after the array substrate and the opposing substrate are bonded to the driver chip, and the touch layer is integrated, a protective cover is added, and the housing and connector are installed. For some self-emissive panels, a backlight can also be assembled to form a display module.

[0037] In the assembly stage t2, the driver board and the aforementioned display module are pressed together, and the display module is embedded into the middle frame. Peripheral components such as cameras and speakers are installed to form a semi-finished product.

[0038] During the integration phase, t3 can install all components (such as the back cover of a mobile phone and battery packaging), install the operating system, debug software, and brand logo, packaging, and quality inspection of the semi-finished product to form a display device 100 (i.e., an electronic terminal).

[0039] The shipment stage t4 can be understood as the stage in which the finished display device 100 (i.e., electronic terminal) is presented in the market, such as during display, sales, or when it has already entered the hands of users.

[0040] Based on the above discussion, since the first stage T1 is the module stage t1, and the structure after the array substrate and the color filter substrate are bonded to the driving chip in this stage, it can be considered that the memory 20 and the touch controller (used to acquire the first reference touch data BTD1 and the second reference touch data BTD2) are both included in the driving chip, so that the memory 20 can store the first reference touch data BTD1 and the second reference touch data BTD2 in the first stage T1 and the second stage T2 respectively.

[0041] Since the second stage T2 is the assembly stage t2, the integration stage t3, or the stage after the integration stage t3 (i.e., the shipping stage t4), the processing system 30 needs to be included in one of the aforementioned driver chip and driver board, so that the processing system 30 can obtain the first reference touch data BTD1 and the second reference touch data BTD2 from the memory 20 in the second stage T2 and determine whether the touch function of the display panel 10 has deteriorated based on the two.

[0042] Furthermore, the memory 20 can be a non-volatile memory. Unlike volatile memory, which requires continuous power to retain data and loses data immediately upon power failure, the memory 20 of this application is a non-volatile memory that can retain stored data for a long time after power failure. For example, the memory 20 can be flash memory, which uses the charge in floating-gate transistors to store data (0 or 1). These charges are surrounded by an insulating layer and can be retained for years or even decades without loss, even without an external power source.

[0043] Understandably, this application stores the first reference touch data BTD1 of the display panel 10 in the first stage T1 and the second reference touch data BTD2 in the second stage T2 after the first stage T1 in the memory 20 bound to the display panel 10. This allows the memory 20 to still store the first reference touch data BTD1 and the second reference touch data BTD2 in the second stage T2, so that the processing system 30 can obtain them and use them to determine whether the touch function of the display panel 10 has deteriorated. In the second stage T2 after the first stage T1, the touch function of the display panel 10 can be monitored in real time to detect whether the deterioration trend of the display panel 10 has deteriorated in a timely and convenient manner, and timely intervention can be carried out. This reduces the risk of electronic products with poor touch function entering the market and reduces the risk of electronic products exhibiting poor touch function.

[0044] Furthermore, the second stage T2 of this application is the assembly stage t2, the integration stage t3, or a stage following the integration stage t3 (i.e., the shipping stage t4). That is, this application does not limit the specific stage of the second stage T2, as long as it is located after the first stage T1 (module stage t1).

[0045] In some embodiments, combined with Figure 1 and Figure 2 As shown, the memory 20 is used to store the reference touch data of the display panel 10 in the assembly stage t2 and the integration stage t3 as two corresponding second reference touch data BTD2; the processing system 30 is configured to: determine whether the touch function of the display panel 10 deteriorates in the assembly stage t2 based on the first reference touch data BTD1 and the second reference touch data BTD2 corresponding to the assembly stage t2; and if the touch function of the display panel 10 does not deteriorate in the assembly stage t2, determine whether the touch function of the display panel 10 deteriorates in the integration stage t3 based on at least one of the first reference touch data BTD1, the second reference touch data BTD2 corresponding to the assembly stage t2, and the second reference touch data BTD2 corresponding to the integration stage t3.

[0046] Specifically, when the above-mentioned module stage t1, assembly stage t2, and integration stage t3 exist, the memory 20 may include a first storage space 201, a second storage space 202, and a third storage space 203 for storing three types of reference touch data for the above three stages, respectively. This embodiment has a first reference touch data BTD1 (presented as matrix A), which is essentially the reference touch data of the display panel 10 in the module stage t1; a second reference touch data BTD2 (presented as matrix B), which is essentially the reference touch data of the display panel 10 in the assembly stage t2; and another second reference touch data BTD2 (presented as matrix C), which is essentially the reference touch data of the display panel 10 in the integration stage t3. That is, at least the above-mentioned first reference touch data BTD1 and two types of second reference touch data BTD2 exist.

[0047] In this embodiment, if it is determined that the touch function of the display panel 10 has not deteriorated in the assembly stage t2, it can be considered that the first reference touch data BTD1 in the module stage t1 and the second reference touch data BTD2 in the assembly stage t2 are both normal reference touch data. Therefore, at least one of them can be used as a comparison standard. By determining the degree of difference between the second reference touch data BTD2 corresponding to the integration stage t3 and the above comparison standard, it can be determined whether the touch function of the display panel 10 has deteriorated in the integration stage t3.

[0048] Furthermore, the memory 20 may also include a fourth storage space 204 for storing the reference touch data (presented as matrix D) of the shipping stage t4. Similarly, when entering the shipping stage t4, it indicates that the three reference touch data corresponding to the first three stages are all normal reference touch data. Therefore, at least one of the three can be used as a comparison standard. By determining the degree of difference between the second reference touch data BTD2 corresponding to the shipping stage t4 and the above comparison standard, it can be determined whether the touch function of the display panel 10 deteriorates in the shipping stage t4.

[0049] In some embodiments, combined with Figures 1 to 3 As shown, when the second stage T2 is either the assembly stage t2 or the integration stage t3, and the processing system 30 determines that the touch function of the display panel 10 has deteriorated, the processing system 30 is further configured to: send an instruction to prevent the display panel 10 from entering a stage following the integration stage t3; in conjunction with Figure 1 , Figure 2 and Figure 4As shown, in the second stage T2, which is the stage after the integration stage t3, and when the processing system 30 determines that the touch function of the display panel 10 has deteriorated, the processing system 30 is further configured to: generate second reference compensation touch data BTD2' based on a portion of the data in the second reference touch data BTD2, and control the display panel 10 to implement the touch function based on the second reference compensation touch data BTD2'.

[0050] That is, when the processing system 30 determines that the touch function of the display panel 10 has deteriorated, it can control the processing system 30 to perform corresponding operations according to the specific stage of the second stage T2, as follows:

[0051] When the second stage T2 is the assembly stage t2 or integration stage t3 (i.e., before entering the shipping stage t4), the processing system 30 is configured to send an instruction to prevent the display panel 10 from entering a stage after the integration stage t3, so as to avoid the display panel 10 entering a stage after the integration stage t3 (i.e., the shipping stage t4), thereby preventing the display panel 10 with deteriorated touch function from reaching the user, thus reducing the risk of defective electronic products entering the market; when the second stage T2 is a stage after the integration stage t3 (i.e., already in the shipping stage t4), it has already been displayed, sold, or has already reached the user, so it is impossible to rework it. At this time, a second reference compensation touch data BTD2' can be generated based on a portion of the data in the second reference touch data BTD2 (i.e., the portion of data that has not experienced anomalies), and the display panel 10 is controlled to implement touch function based on the second reference compensation touch data BTD2', thereby reducing the risk of electronic products exhibiting touch malfunction.

[0052] In some embodiments, combined with Figure 1 , Figure 2 and Figure 4 As shown, when the second stage T2 is the stage after the integration stage t3 (i.e., it has entered the shipping stage t4), and the processing system 30 determines that the touch function of the display panel 10 has deteriorated, the processing system 30 is used to generate touch change data Diff based on the second reference compensation touch data BTD2' and the touch touch data TTD generated by touching the display panel 10 in the second stage T2, and to control the display panel 10 to implement the touch function based on the touch change data Diff.

[0053] That is, when entering the shipping stage t4 and the touch function of the display panel 10 deteriorates, the touch display panel 10 can generate corresponding touch data TTD. Based on the second reference compensation touch data BTD2' before touch and the touch data TTD after touch in the shipping stage t4 (or it can be considered as generated based on part of the original touch data generated by the touch display panel 10 in the second stage T2), the data change caused by this touch (included in the touch change data Diff) can be determined. Then, the touch panel 10 is subjected to corresponding touch recognition based on the touch change data Diff to realize the touch function of the display panel 10.

[0054] The aforementioned "raw touch data" can be understood as data generated by the t4 touch display panel 10 during the shipping stage. Some data corresponding to the channel to be compensated is still abnormal. Similarly, the aforementioned touch data TTD is generated here based on the data from the "raw touch data" corresponding to the channels that did not experience abnormalities. In other words, both "touch data TTD" and "second reference compensation touch data BTD2'" can be understood as data after touch compensation of the display panel 10.

[0055] In some embodiments, combined with Figures 1 to 4 As shown, the display panel 10 includes multiple touch channels (e.g., multiple first touch channels TX and multiple second touch channels RX). The first reference touch data BTD1 includes multiple first sub-reference touch data of the multiple touch channels in the first stage T1 (i.e., at least multiple values ​​in matrix A). The second reference touch data BTD2 includes multiple second sub-reference touch data of the multiple touch channels in the second stage T2 (i.e., at least multiple values ​​in matrix B, matrix C, or matrix D). The processing system 30 is used to compare the second sub-reference touch data corresponding to the same touch channel with the corresponding first sub-reference touch data to determine the touch channel to be compensated. The touch channel to be compensated is the touch channel in the display panel 10 where the touch function has deteriorated.

[0056] Specifically, such as Figure 1 As shown in the illustration, this embodiment takes the mutual capacitance method as an example. Multiple first touch channels TX and multiple second touch channels RX can be arranged in a grid structure. The intersection of each first touch channel TX and second touch channel RX forms an independent, tiny capacitor node as the basic unit of touch. Each capacitor node can have corresponding sub-reference touch data when it is not touched. Multiple sub-reference touch data (multiple first sub-reference touch data or multiple second sub-reference touch data) can constitute reference touch data (first reference touch data BTD1 or second reference touch data BTD2).

[0057] The touch chip 302 (included in the aforementioned driver chip or circuit board) sequentially applies an AC signal to each first touch channel TX. When a first touch channel TX electrode is activated, all the second touch channel RX electrodes that intersect with it are simultaneously detected, measuring the electrical signal strength (i.e., the mutual capacitance value) coupled from the first touch channel TX. This process is repeated until all first touch channels TX have been scanned to obtain a capacitance value map of the entire touch layer.

[0058] Among them, such as Figure 3 and Figure 4 As shown, TX1, TX2 to TX10 in matrices A to D can be 10 of a plurality of first touch channels TX arranged in sequence at intervals, and the number of first touch channels TX between adjacent pairs of TX1, TX2 to TX10 can be the same or different; similarly, RX1, RX2 to RX5 in matrices A to D can be 5 of a plurality of second touch channels RX arranged in sequence at intervals, and the number of second touch channels RX between adjacent pairs of RX1, RX2 to RX5 can be the same or different.

[0059] It should be noted that in this embodiment, the number of first touch channels TX and the number of second touch channels RX involved in matrices A to D are not limited. They can be the same or different. Furthermore, the ratio of the two can be close to the ratio of the total number of first touch channels TX and the total number of second touch channels RX in the display panel 10.

[0060] For matrices A to D, “comparing the second sub-reference touch data corresponding to the same touch channel with the corresponding first sub-reference touch data” can be understood as: comparing the degree of difference between multiple sub-reference touch data corresponding to each of TX1, TX2 to TX10 in the second stage T2 and the first stage T1, and comparing the degree of difference between multiple sub-reference touch data corresponding to each of RX1, RX2 to RX5 in the second stage T2 and the first stage T1, so as to determine at least one touch channel (selected from TX1, TX2 to TX10, RX1, RX2 to RX5) with a larger degree of difference as the touch channel to be compensated. Since at least one of the multiple sub-reference touch data corresponding to the touch channel to be compensated has a large degree of difference in the second stage T2 and the first stage T1, that is, the touch channel to be compensated has a deterioration trend, it can be defined as the touch channel in the display panel 10 where the touch function has deteriorated.

[0061] For example Figure 3As shown, in the second stage T2, which is either assembly stage t2 or integration stage t3 (the former is used as an example here), and when the processing system 30 determines that the multiple sub-reference touch data corresponding to RX3 have a large degree of difference between the second stage T2 (e.g., 4676, 4670, 4679, 4673, 4630, 4605, 4560, 4610, 4629, 4636 respectively) and the first stage T1 (e.g., 5881, 5840, 5837, 5829, 5847, 5842, 5814, 5815, 5775, 5816 respectively), then RX3 can be considered as a touch channel in the display panel 10 where the touch function has deteriorated. After this, the display panel 10 cannot enter the stage after integration stage t3 (i.e., shipping stage t4).

[0062] For example Figure 4 As shown, in the second stage T2, which is the stage following the integration stage t3 (i.e., the shipping stage t4), and when the processing system 30 determines that the multiple sub-reference touch data corresponding to RX3 differ significantly between the second stage T2 (e.g., 1676, 1670, 1679, 1673, 1630, 1605, 1560, 1610, 1619, 1636) and the first stage T1 (e.g., 5881, 5840, 5837, 5829, 5847, 5842, 5814, 5815, 5775, 5816), then RX3 can be considered as a touch channel in the display panel 10 where the touch function has deteriorated. Thereafter, at least based on the second reference touch data...

[0063] The second reference compensation touch data BTD2', generated from a portion of the data in BTD2 (which includes at least multiple values ​​in matrix D), is used to control the display panel 10 to achieve touch functionality.

[0064] Furthermore, such as Figure 4 As shown, the second reference compensation touch data BTD2' includes multiple reference compensation sub-touch data corresponding to multiple touch channels (i.e., at least multiple values ​​in matrix D'), and the touch data TTD includes multiple touch sub-touch data corresponding to multiple touch channels (i.e., at least multiple values ​​in matrix D"); the processing system 30 is used to determine multiple sub-touch change data corresponding to multiple touch channels based on the multiple touch sub-touch data corresponding to multiple touch channels other than the touch channel to be compensated and the multiple reference compensation sub-touch data, and the multiple sub-touch change data constitute the touch change data Di.

[0065] As discussed above, the multiple reference compensation sub-touch data (i.e., including at least multiple values ​​in matrix D') are determined based on the portion of the second sub-reference touch data corresponding to the channels in matrix D where no anomalies have occurred. Similarly, the multiple touch sub-touch data (i.e., including at least multiple values ​​in matrix D") are determined based on the portion of the data corresponding to the channels in another matrix (i.e., the aforementioned "original touch data") generated after the display panel 10 has been touched.

[0066] Furthermore, each value in matrix D' can be subtracted from the corresponding value in matrix D” to obtain a corresponding sub-touch change data, thereby obtaining multiple sub-touch change data with the same number of values ​​as in matrix D' and matrix D” to form matrix E (where the multiple values ​​are the aforementioned multiple sub-touch change data).

[0067] In some embodiments, combined with Figure 1 , Figure 2 and Figure 4 As shown, the processing system 30 is used to determine two touch channels adjacent to the touch channel to be compensated from a plurality of touch channels (selected from TX1, TX2 to TX10, RX1, RX2 to RX5) as corresponding two reference touch channels; the processing system 30 is also used to determine the touch sub-touch data of the touch channel to be compensated based on the two touch sub-touch data corresponding to the two reference touch channels, and to determine the reference compensation sub-touch data of the touch channel to be compensated based on the two reference compensation sub-touch data corresponding to the two reference touch channels, and to determine the corresponding sub-touch variation data based on the touch sub-touch data of the touch channel to be compensated and the reference compensation sub-touch data.

[0068] Specifically, such as Figure 4 As shown, when multiple sub-reference touch data corresponding to RX3 in matrix D exhibit anomalies in the second stage T2, i.e., when RX3 is a touch channel where touch function deteriorates, the low original data of this channel needs to be discarded. Instead, differential compensation is performed using adjacent channels. This involves borrowing the original data from adjacent channels and the touch variation data (Diff) from finger touches to obtain the result shown below. Figure 4 The matrix D shown (i.e., the compensated matrix D) and Figure 4 The matrix E mentioned above (i.e., the compensated Diff matrix).

[0069] Furthermore, the processing system 30 is used to determine the corresponding sub-touch change data based on the two sub-touch data corresponding to the two reference touch channels, the two reference compensation sub-touch data, and the two distance values ​​between the two reference touch channels and the touch channel to be compensated.

[0070] It's important to note that although the touch channel to be compensated is located between two reference touch channels, these two reference touch channels are selected from multiple touch channels and are adjacent to the channel to be compensated. Therefore, there is a difference in the distance values ​​between the touch channel to be compensated and the two reference touch channels. Understandably, this also considers the impact of this difference in distance values ​​on the weights of the corresponding two touch sub-touch data. It can be assumed that the touch sub-touch data corresponding to the larger distance value has a smaller weight, and the touch sub-touch data corresponding to the smaller distance value has a larger weight. This determines the two corresponding weights, and the results of multiplying each weight by the corresponding touch sub-touch data are summed to obtain the sub-touch change data corresponding to the touch channel to be compensated. The sum of the two weights can be 1.

[0071] In some embodiments, combined with Figures 1 to 4 As shown, the processing system 30 includes: a processing chip 301, configured to determine whether the touch function of the display panel 10 has deteriorated based on the first reference touch data BTD1 and the second reference touch data BTD2, and to send an instruction to prohibit the display panel 10 from entering a stage after the integration stage t3 when it is determined that the touch function of the display panel 10 has deteriorated and the second stage T2 is the assembly stage t2 or the integration stage t3; and a touch chip 302, configured to generate touch data TTD based on a portion of the data in the second reference touch data BTD2 when the processing chip 301 determines that the touch function of the display panel 10 has deteriorated and the second stage T2 is a stage after the integration stage t3, and to control the display panel 10 to implement the touch function based on the touch data TTD.

[0072] The aforementioned processing system 30 can be understood as being integrated on a motherboard connected to the display panel 10. The processing chip 301 and the touch chip 302 can communicate to jointly achieve the aforementioned functions. The processing chip 301 is electrically connected to the memory 20 to obtain the first reference touch data BTD1 of the display panel 10 in the first stage T1 and the second reference touch data BTD2 in the second stage T2 after the first stage T1, which is stored in the memory 20.

[0073] In some embodiments, combined with Figures 1 to 4 As shown, the timing control chip in the display device 100 includes the memory 20, which is a non-volatile memory. As discussed above, in the module stage t1, the structure after the array substrate and the opposing substrate are bonded to the driver chip, meaning the driver chip is bound to the display panel 10. In this embodiment, the timing control chip can be included within the aforementioned driver chip, thus allowing the memory 20 in the timing control chip to also be fixed to the display panel 10 in the module stage t1.

[0074] This application also provides a control method for a display device, which is applied to the display device 100, including the display panel 10, memory 20 and processing system 30 described above.

[0075] In some embodiments, such as Figure 5 As shown, the control method for the display device includes, but is not limited to, the following steps:

[0076] S1, control the memory 20 to store the first reference touch data BTD1 of the display panel 10 in the first stage T1 and the second reference touch data BTD2 in the second stage T2 after the first stage T1;

[0077] S2, the processing system 30 is controlled to determine that the touch function of the display panel 10 has deteriorated when the difference between the first reference touch data BTD1 and the second reference touch data BTD2 exceeds a threshold; and

[0078] S3, at least when the touch function of the display panel 10 has not deteriorated, control the display panel 10 to display the screen and implement the touch function.

[0079] The steps S1 to S2 described above can be referred to in the relevant discussion above.

[0080] As discussed above, the display panel 10 forms a display module through a module stage t1, the display module forms a semi-finished product through an assembly stage t2, and the semi-finished product forms the display device 100 through an integration stage t3; wherein, the first stage T1 is the module stage t1, and the second stage T2 is the assembly stage t2, the integration stage t3, or a stage located after the integration stage t3;

[0081] Based on this, the control method of the display device 100 also includes, but is not limited to, the following steps:

[0082] S4, when the second stage T2 is the assembly stage t2 or the integration stage t3, and the processing system 30 determines that the touch function of the display panel 10 has deteriorated, it sends an instruction to prevent the display panel 10 from entering a stage located after the integration stage t3;

[0083] S5, when the second stage T2 is the stage after the integration stage t3, and the processing system 30 determines that the touch function of the display panel 10 has deteriorated, the processing system 30 is controlled to generate touch data TTD based on a portion of the data in the second reference touch data BTD2, and to control the display panel 10 to implement the touch function based on the touch data TTD.

[0084] The steps S4 to S5 mentioned above can be referred to in the relevant discussion above.

[0085] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0086] The above are merely preferred embodiments of this application and are not intended to limit this application in any way. Although this application has disclosed preferred embodiments as above, it is not intended to limit this application. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the technical solution of this application. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of this application without departing from the scope of the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. A display device, characterized in that, include: The display panel is used for displaying images and enabling touch functionality; The memory is used to store the first reference touch data of the display panel in the first stage and the second reference touch data in the second stage after the first stage; A processing system, electrically connected to the display panel and the memory, is used to determine that the touch function of the display panel has deteriorated when the difference between the first reference touch data and the second reference touch data exceeds a threshold. The display panel is formed into a display module through a module stage, the display module is formed into a semi-finished product through an assembly stage, and the semi-finished product is formed into the display device through an integration stage. The first stage is the module stage, and the second stage is the assembly stage, the integration stage, or a stage located after the integration stage. When the second stage is the assembly stage or the integration stage, and the processing system determines that the touch function of the display panel has deteriorated, the processing system is further configured to: send an instruction to prevent the display panel from entering a stage located after the integration stage; In the second stage, which is a stage following the integration stage, and when the processing system determines that the touch function of the display panel has deteriorated, the processing system is further configured to: generate second reference compensation touch data based on a portion of the second reference touch data, and control the display panel to implement touch function based on the second reference compensation touch data.

2. The display device according to claim 1, characterized in that, In the second stage, which is a stage following the integration stage, and when the processing system determines that the touch function of the display panel has deteriorated, the processing system is used to generate touch change data based on the second reference compensation touch data and the touch data generated by touching the display panel in the second stage, and to control the display panel to implement touch function based on the touch change data.

3. The display device according to claim 2, characterized in that, The display panel includes multiple touch channels, the first reference touch data includes multiple first sub-reference touch data of the multiple touch channels in a first stage, and the second reference touch data includes multiple second sub-reference touch data of the multiple touch channels in a second stage. The processing system is used to compare the second sub-reference touch data corresponding to the same touch channel with the corresponding first sub-reference touch data to determine the touch channel to be compensated, wherein the touch channel to be compensated is the touch channel in the display panel where the touch function has deteriorated.

4. The display device according to claim 3, characterized in that, The second reference compensation touch data includes multiple reference compensation sub-touch data corresponding to multiple touch channels, and the touch touch data includes multiple touch sub-touch data corresponding to multiple touch channels; The processing system is used to determine multiple sub-touch change data corresponding to multiple touch channels based on multiple touch sub-touch data corresponding to multiple touch channels other than the touch channel to be compensated and multiple reference compensation sub-touch data, wherein the multiple sub-touch change data constitute the touch change data.

5. The display device according to claim 4, characterized in that, The processing system is used to determine two touch channels adjacent to the touch channel to be compensated from a plurality of touch channels as two corresponding reference touch channels; The processing system is further configured to determine the sub-touch variation data of the touch channel to be compensated based on the two touch sub-touch data corresponding to the two reference touch channels, and to determine the reference compensation sub-touch data of the touch channel to be compensated based on the two reference compensation sub-touch data corresponding to the two reference touch channels, and to determine the corresponding sub-touch variation data based on the sub-touch variation data of the touch channel to be compensated and the reference compensation sub-touch data.

6. The display device according to claim 5, characterized in that, The processing system is used to determine the corresponding sub-touch change data based on the two sub-touch data corresponding to the two reference touch channels, the two reference compensation sub-touch data, and the two distance values ​​between the two reference touch channels and the touch channel to be compensated.

7. The display device according to any one of claims 1 to 6, characterized in that, The processing system includes: The processing chip is configured to determine whether the touch function of the display panel has deteriorated based on the first reference touch data and the second reference touch data, and when it is determined that the touch function of the display panel has deteriorated and the second stage is the assembly stage or the integration stage, send an instruction to prohibit the display panel from entering a stage located after the integration stage. The touch chip, when the processing chip determines that the touch function of the display panel has deteriorated and the second stage is a stage after the integration stage, is used to generate touch compensation data based on a portion of the data in the second reference touch data, and control the display panel to implement touch function based on the touch compensation data.

8. The display device according to any one of claims 1 to 6, characterized in that, The memory is used to store the reference touch data of the display panel in the assembly stage and the integration stage, respectively, as the two corresponding second reference touch data; The processing system is configured as follows: Based on the first reference touch data and the second reference touch data corresponding to the assembly stage, it is determined whether the touch function of the display panel deteriorates during the assembly stage; If the touch function of the display panel does not deteriorate during the assembly stage, the system determines whether the touch function of the display panel deteriorates during the integration stage based on one of the first reference touch data, the second reference touch data corresponding to the assembly stage, and the second reference touch data corresponding to the integration stage.

9. The display device according to any one of claims 1 to 6, characterized in that, The timing control chip in the display device includes the memory, which is a non-volatile memory.

10. A control method for a display device, characterized in that, Applied to a display device, the display device including a display panel, a memory, and a processing system, the control method of the display device includes: The memory is controlled to store the first reference touch data of the display panel in the first stage and the second reference touch data in the second stage after the first stage; The control system determines that the touch function of the display panel has deteriorated when the difference between the first reference touch data and the second reference touch data exceeds a threshold; and At least when the touch function of the display panel is not deteriorated, the display panel is controlled to display images and implement touch functions; The display panel is formed into a display module through a module stage, the display module is formed into a semi-finished product through an assembly stage, and the semi-finished product is formed into the display device through an integration stage. The first stage is the module stage, and the second stage is the assembly stage, the integration stage, or a stage located after the integration stage. The control method for the display device further includes: When the second stage is the assembly stage or the integration stage, and the processing system determines that the touch function of the display panel has deteriorated, it sends an instruction to prevent the display panel from entering a stage located after the integration stage; In the second stage, which is the stage following the integration stage, and when the processing system determines that the touch function of the display panel has deteriorated, the processing system is controlled to generate touch compensation data based on a portion of the data in the second reference touch data, and the display panel is controlled to implement touch function based on the touch compensation data.

Images