Display module and display device

Abstract

The embodiment of the utility model provides a display module and a display device, and relates to the technical field of display. The display module comprises a display panel, a foam layer, a first flexible circuit board and a temperature sensor, the display panel comprises a display area and a bending area. The foam layer covers the back side of the display area; the bending area of the display panel is bent to the back side of the foam layer; a bending area of the display panel is provided with a driving integrated circuit; the temperature sensor is arranged in the sensing hole of the foam layer, is attached to the display panel and is used for measuring the temperature of the display panel; the temperature sensor is electrically connected with the driving integrated circuit through the first flexible circuit board so as to transmit the current temperature of the display panel to the driving integrated circuit; and the driving integrated circuit is used for adjusting the voltage output to the display panel based on the current temperature of the display panel and a preset voltage compensation scheme.

Description

Technical Field

[0001] This utility model relates to the field of display technology, and in particular to a display module and a display device. Background Technology

[0002] Currently, common active-matrix organic light emitting diode (AMOLED) display technologies typically use electroluminescent (EL) materials as the light emitters in the display panel.

[0003] However, during use, due to the severe temperature sensitivity of EL materials, the brightness of the display panel will change with temperature when it operates in different temperature environments. In particular, the brightness of the display panel will decrease in high or low temperature environments, resulting in inconsistent brightness of the display panel used at different temperatures. Utility Model Content

[0004] The purpose of this utility model embodiment is to provide a display module and display device to improve the problem of inconsistent brightness of display panels used under different temperature environments. The specific technical solution is as follows:

[0005] This utility model provides a display module, which includes: a display panel, a foam layer, a first flexible circuit board, and a temperature sensor;

[0006] The display panel includes a display area and a bending area;

[0007] The foam layer covers the back side of the display area; the bending area of ​​the display panel bends to the back side of the foam layer; a driver integrated circuit is provided in the bending area of ​​the display panel.

[0008] The temperature sensor is disposed in the sensing opening of the foam layer and is attached to the display panel for measuring the temperature of the display panel; and the temperature sensor is electrically connected to the driving integrated circuit through the first flexible circuit board to transmit the current temperature of the display panel to the driving integrated circuit.

[0009] The driving integrated circuit adjusts the voltage output to the display panel based on the current temperature of the display panel and a preset voltage compensation scheme.

[0010] In some embodiments of this utility model, a sensing opening is provided on the foam layer, and the number of temperature sensors is one;

[0011] The driver integrated circuit adjusts the voltage output to the display panel based on the current temperature measured by the temperature sensor and the corresponding voltage compensation scheme.

[0012] In some embodiments of this utility model, the driving integrated circuit includes: a first data processing module, a first power supply voltage control module electrically connected to the first data processing module, and a first reset voltage generation module;

[0013] The first data processing module is electrically connected to the temperature sensor and is used to obtain power supply voltage compensation parameters and reset voltage compensation parameters corresponding to the current temperature based on the current temperature of the display panel and the voltage compensation scheme; and based on the power supply voltage compensation parameters and reset voltage compensation parameters, control the first power supply voltage control module to output the corresponding power supply control voltage signal to adjust the power supply voltage of the display panel; and control the first reset voltage generation module to generate the corresponding reset voltage and output it to the display panel.

[0014] In some embodiments of this utility model, the driving integrated circuit is provided with: a second data processing module and a first gamma voltage generation module electrically connected to the second data processing module;

[0015] The second data processing module is electrically connected to the temperature sensor and is used to obtain gamma voltage compensation parameters corresponding to the current temperature based on the current temperature of the display panel and the voltage compensation scheme, and to control the first gamma voltage generation module to generate the corresponding gamma voltage based on the gamma voltage compensation parameters and output it to the display panel.

[0016] In some embodiments of this utility model, the foam layer is provided with a plurality of sensing openings, and the number of temperature sensors is plurality of;

[0017] The display panel is divided into multiple sensing areas, with each temperature sensor corresponding to one sensing area.

[0018] The multiple temperature sensors are electrically connected through a second flexible circuit board to form a temperature sensor group, which is used to measure the current temperature of each of the sensing areas on the display panel.

[0019] The temperature sensor group is electrically connected to the first flexible circuit board through the third flexible circuit board. The third flexible circuit board is provided with a temperature integrated circuit for calculating the current overall temperature distribution of the display panel based on the temperature of each sensing area on the display panel measured by the temperature sensor group.

[0020] The driving integrated circuit adjusts the driving voltage output to the display panel based on the current overall temperature distribution calculated by the temperature integrated circuit and the corresponding voltage compensation scheme.

[0021] In some embodiments of this utility model, the driving integrated circuit includes: a third data processing module, and a second power supply voltage control module and a second reset voltage generation module electrically connected to the third data processing module;

[0022] The third data processing module is electrically connected to the temperature integrated circuit and is used to obtain the power supply voltage compensation parameters and reset voltage compensation parameters corresponding to the current temperature based on the current overall temperature distribution of the display panel and the voltage compensation scheme.

[0023] Based on the power supply voltage compensation parameters and the reset voltage compensation parameters, the second power supply voltage control module is controlled to output the corresponding power supply control voltage signal to adjust the power supply voltage of the display panel; and the second reset voltage generation module is controlled to generate the corresponding reset voltage and output it to the display panel.

[0024] In some embodiments of this utility model, the display panel includes: a plurality of pixel circuits;

[0025] The driving integrated circuit includes: a fourth data processing module and a second gamma voltage generation module electrically connected to the fourth data processing module;

[0026] The fourth data processing module is electrically connected to the temperature integrated circuit and is used to obtain multiple gamma voltage compensation parameters corresponding to the current temperature of the location of each pixel circuit based on the current overall temperature distribution of the display panel and the voltage compensation scheme; and based on the multiple gamma voltage compensation parameters, control the second gamma voltage generation module to generate corresponding gamma voltages for each pixel circuit and output them to each pixel circuit.

[0027] In some embodiments of this utility model, the first flexible circuit board and the temperature sensor are electrically connected through a zero-insertion-force connector or a board-to-board connector;

[0028] The foam layer is copper foil foam;

[0029] The display module further includes:

[0030] A polarizer, adhesive material, and glass cover are sequentially arranged along the side of the display panel away from the foam layer.

[0031] The present invention also provides a display device, which includes the display module described in any of the above embodiments.

[0032] The beneficial effects of this utility model embodiment are as follows:

[0033] This utility model provides a display module and display device. A temperature sensor is provided in the display module, which can directly detect the real-time temperature of the display panel in the display module through sensing openings in the foam layer. A driver integrated circuit (IC) is disposed on the bending area on the back side of the foam layer of the display panel, which can receive the temperature signal output by the temperature sensor through a first flexible circuit board.

[0034] The temperature sensor converts the measured temperature data of the display panel into a temperature signal. This temperature signal is transmitted to the first flexible circuit board via the second flexible circuit board, which then transmits the signal to the driver integrated circuit. Based on the current temperature of the display panel and a preset voltage compensation scheme, the driver integrated circuit adjusts the voltage output to the display panel to ensure that the display panel maintains the same brightness at different temperatures, thereby improving the problem of inconsistent overall brightness of the display panel under different temperature environments.

[0035] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0036] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0037] Figure 1 This is a schematic diagram of the structure of the first embodiment of the display module provided by this utility model;

[0038] Figure 2 for Figure 1 The diagram shown is a circuit schematic of a driver integrated circuit in a display module.

[0039] Figure 3 for Figure 1 The diagram shown is another circuit schematic of the driver integrated circuit in the display module;

[0040] Figure 4 This is a schematic diagram of the structure of the second embodiment of the display module provided by this utility model;

[0041] Figure 5 for Figure 2 A schematic diagram of the overall temperature distribution of the display panel as measured by the temperature sensor group in the illustrated embodiment.

[0042] Figure 6 for Figure 4 The diagram shown is a schematic of the first type of circuit for the driver integrated circuit in the display module.

[0043] Figure 7 for Figure 4 The diagram shown is a schematic of the second type of circuit for the driver integrated circuit in the display module.

[0044] Figure 8 for Figure 4 The diagram shown is the schematic of the third type of circuit for the driver integrated circuit in the display module.

[0045] Figure 9 A flowchart of the first embodiment of the display panel brightness compensation method provided by this utility model;

[0046] Figure 10 A flowchart of the second embodiment of the display panel brightness compensation method provided by this utility model;

[0047] Figure 11 A flowchart of the third embodiment of the display panel brightness compensation method provided by this utility model;

[0048] Figure 12 A flowchart of the fourth embodiment of the display panel brightness compensation method provided by this utility model;

[0049] Figure 13 A flowchart of the fifth embodiment of the display panel brightness compensation method provided by this utility model;

[0050] Figure 14 A flowchart of the sixth embodiment of the display panel brightness compensation method provided by this utility model;

[0051] Figure 15 A flowchart of the seventh embodiment of the display panel brightness compensation method provided by this utility model.

[0052] Figure label:

[0053] Display panel 1, display area 11, bending area 12, foam layer 2, sensing opening 21, first flexible circuit board 31, second flexible circuit board 32, third flexible circuit board 33, temperature integrated circuit 331, temperature data calculation module 3311, temperature sensor 4.

[0054] The system includes: driver integrated circuit 5; first data processing module 511; second data processing module 512; third data processing module 513; fourth data processing module 514; fifth data processing module 515; first power supply voltage control module 521; first reset voltage generation module 522; first gamma voltage generation module 523; second power supply voltage control module 531; second reset voltage generation module 532; second gamma voltage generation module 533; motherboard power module 54; first temperature data receiving module 551; second temperature data receiving module 552; compensation data storage module 56; and temperature data judgment and compensation data lookup module 57.

[0055] 6. Connector, 7. Polarizing film (POL), 8. Adhesive material (OCA), 9. Glass cover (CG Cover). Detailed Implementation

[0056] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art based on this application are within the protection scope of the present utility model.

[0057] This utility model provides a display module, such as Figure 1 , Figure 1 This is a schematic diagram of the structure of a display module provided in the first embodiment of the present invention. The display module includes: a display panel 1, a foam layer 2, a first flexible circuit board 31, and a temperature sensor 4; the display panel 1 includes a display area 11 and a bending area 12; the foam layer 2 covers the back side of the display area 11; the bending area 12 of the display panel 1 is bent to the back side of the foam layer 2; a driving integrated circuit 5 is disposed in the bending area 12 of the display panel 1; the temperature sensor 4 is disposed in the sensing opening 21 of the foam layer 2 and is attached to the display panel 1 for measuring the temperature of the display panel 1; and the temperature sensor 4 is electrically connected to the driving integrated circuit 5 through the first flexible circuit board 31 to transmit the current temperature of the display panel 1 to the driving integrated circuit 5; the driving integrated circuit 5 adjusts the voltage output to the display panel 1 based on the current temperature of the display panel 1 and a preset voltage compensation scheme.

[0058] In this embodiment, a temperature sensor 4 is provided in the display module. The temperature sensor 4 can directly detect the real-time temperature of the display panel 1 in the display module through the sensing opening 21 on the foam layer 2. The driving integrated circuit 5 located on the bending area 12 on the back side of the foam layer 2 of the display panel 1 can receive the temperature signal output by the temperature sensor 4 through the first flexible circuit board 31.

[0059] Temperature sensor 4 converts the measured temperature data of display panel 1 into a temperature signal. The temperature signal is transmitted to the first flexible circuit board 31 via the second flexible circuit board 32, and then to the driver integrated circuit 5 via the first flexible circuit board 31. Based on the current temperature of display panel 1 and a preset voltage compensation scheme, the driver integrated circuit 5 adjusts the voltage output to display panel 1 so that the display panel can maintain the same brightness at different temperatures, thereby improving the problem of inconsistent overall brightness of the display panel under different temperature environments.

[0060] The display module provided by this utility model can control the brightness of the display panel 1 to different degrees by setting different numbers of temperature sensors 4. The following will describe the different scenarios where the display module has different numbers of temperature sensors 4.

[0061] In the first embodiment of this utility model, as Figure 1 As shown, a sensing opening 21 is provided on the foam layer 2 of the display module, and there is one temperature sensor 4; the driving integrated circuit 5 adjusts the voltage output to the display panel 1 based on the current temperature measured by the temperature sensor 4 and the corresponding voltage compensation scheme.

[0062] In this embodiment, the display module contains only one temperature sensor 4. In this case, after receiving the temperature signal from the temperature sensor 4, the driver integrated circuit 5 selects a voltage compensation scheme corresponding to the current temperature according to a preset voltage compensation scheme within the driver integrated circuit 5, and simultaneously performs the same compensation on the voltage at each location on the display panel 1. This ensures that the display panel maintains the same brightness at different temperatures, thereby improving the problem of inconsistent overall brightness of the display panel under different temperature environments.

[0063] In the first embodiment of this utility model, compensation can be made for the supply voltage (ELVSS voltage) and the reset voltage (Vint2 voltage), such as... Figure 2 As shown, Figure 2 for Figure 1 The diagram shows a circuit schematic of a driver integrated circuit in the display module. The driver integrated circuit 5 includes: a first data processing module 511, a first power supply voltage control module 521 electrically connected to the first data processing module 511, and a first reset voltage generation module 522. The first data processing module 511 is electrically connected to a temperature sensor 4 and is used to obtain power supply voltage compensation parameters and reset voltage compensation parameters corresponding to the current temperature and voltage compensation scheme of the display panel 1; and based on the power supply voltage compensation parameters and reset voltage compensation parameters, control the first power supply voltage control module 521 to output a corresponding power supply control voltage signal to adjust the power supply voltage of the display panel 1; and control the first reset voltage generation module 522 to generate a corresponding reset voltage and output it to the display panel 1.

[0064] In this embodiment, the driving integrated circuit 5 includes a first power supply voltage control module 521 and a first reset voltage generation module 522. The temperature sensor 4 is electrically connected to the first data processing module 511 in the driving integrated circuit 5, and can transmit the current temperature of the display panel 1 to the first data processing module 511. See also Figure 2 The first data processing module 511 may include: a first temperature receiving module 551, a compensation data storage module 56, and a temperature data judgment and compensation data lookup module 57. The compensation data storage module 56 may also be a compensation logic storage module or a compensation table storage module.

[0065] like Figure 2 As shown, the first power supply voltage control module 521 and the first reset voltage generation module 522 are electrically connected to the first data processing module 511. The temperature data judgment and compensation data lookup module 57 in the first data processing module 511 can transmit signals to the first power supply voltage control module 521 and the first reset voltage generation module 522.

[0066] After receiving the temperature signal, the first temperature data receiving module 551 sends it to the temperature data judgment and compensation data lookup module 57. The temperature data judgment and compensation data lookup module 57 can obtain a pre-set voltage compensation scheme corresponding to the current temperature of the display panel 1 from the compensation data storage module 56 based on the current temperature of the display panel 1.

[0067] The voltage compensation schemes corresponding to different temperature ranges are shown in Table 1. Table 1 shows the voltage compensation schemes for the supply voltage and reset voltage under different temperature ranges. In actual use, the supply voltage, reset voltage, supply voltage compensation value (offset), and reset voltage compensation value can be set to three or more sets according to the temperature environment. The ranges listed in Table 1 are for reference only.

[0068]

[0069] Table 1. Voltage compensation schemes for supply voltage and reset voltage under different temperature ranges.

[0070] Please continue reading Figure 2Based on the voltage compensation scheme corresponding to the current temperature of display panel 1, driver integrated circuit 5 obtains power supply voltage compensation parameters and reset voltage compensation parameters corresponding to the current temperature. According to the power supply voltage compensation parameters, driver integrated circuit 5 controls the first power supply voltage control module 521 to send a power supply control voltage signal to the motherboard power module 54. After receiving the power supply control voltage signal, the motherboard power module 54 outputs the compensated power supply voltage to display panel 1. According to the reset voltage compensation parameters, driver integrated circuit 5 controls the first reset voltage generation module 522 to generate the corresponding reset voltage and output it to display panel 1. In this way, driver integrated circuit 5 can dynamically compensate the power supply voltage and reset voltage in real time according to the real-time temperature changes of display panel 1. The motherboard power module 54 is located on the motherboard of the electronic device to which this display module is applied; for example, the motherboard can be a mobile phone motherboard.

[0071] During the voltage compensation process described above, the reset voltage is compensated synchronously while the power supply voltage is being compensated, so that the two always maintain the same voltage difference, thereby ensuring that the image quality on the display panel remains consistent.

[0072] In the first embodiment of this utility model, gamma voltage compensation can also be performed, such as... Figure 3 As shown, Figure 3 for Figure 1 The diagram shows another circuit schematic of the driver integrated circuit in the display module. The driver integrated circuit 5 includes: a second data processing module 512 and a first gamma voltage generation module 523 electrically connected to the second data processing module 512; the second data processing module 512 is electrically connected to the temperature sensor 4, and is used to obtain gamma voltage compensation parameters corresponding to the current temperature based on the current temperature and voltage compensation scheme of the display panel 1, and control the first gamma voltage generation module 523 to generate the corresponding gamma voltage based on the gamma voltage compensation parameters, and output it to the display panel.

[0073] In this embodiment, when the driving integrated circuit 5 has a first gamma voltage generation module 523, the temperature sensor 4 is electrically connected to the second data processing module 512 in the driving integrated circuit 5, and can transmit the current temperature of the display panel 1 to the second data processing module 512. (See also...) Figure 3 The second data processing module 512 may include: a first temperature receiving module 551, a compensation data storage module 56, and a temperature data judgment and compensation data lookup module 57. The compensation data storage module 56 may also be a compensation logic storage module or a compensation table storage module.

[0074] like Figure 3As shown, the first gamma voltage generation module 523 is electrically connected to the second data processing module 512. The temperature data judgment and compensation data lookup module 57 in the second data processing module 512 can transmit signals to the first gamma voltage generation module 523.

[0075] After receiving the temperature signal, the first temperature data receiving module 551 sends it to the temperature data judgment and compensation data lookup module 57. The temperature data judgment and compensation data lookup module 57 can obtain the pre-set voltage compensation scheme corresponding to the current temperature of the display panel 1 from the compensation data storage module 56 according to the current temperature of the display panel 1.

[0076] Table 2 shows the voltage compensation schemes for different temperature ranges. In practical applications, the gamma voltage value and gamma voltage compensation value can be set to three or more groups depending on the temperature environment. The ranges listed in Table 2 are for reference only.

[0077]

[0078] Table 2. Voltage compensation schemes for gamma voltage under different temperature ranges.

[0079] Please continue reading Figure 3 Based on the voltage compensation scheme corresponding to the current temperature of display panel 1, driver integrated circuit 5 obtains gamma voltage compensation parameters corresponding to the current temperature. According to the gamma voltage compensation parameters, driver integrated circuit 5 controls the first gamma voltage generation module 523 to generate the corresponding gamma voltage and output it to display panel 1. In this way, driver integrated circuit 5 can dynamically compensate the gamma voltage in real time according to the real-time changes in the temperature of display panel 1.

[0080] As those skilled in the art will understand, in the circuits involved in the above two voltage compensation schemes, Figure 2 as well as Figure 3 The circuit diagram shown only illustrates the modules involved in the corresponding voltage compensation schemes. In actual use, the first power supply voltage control module 521, the first reset voltage generation module 522, and the first gamma voltage generation module 523 can be simultaneously located in the same circuit and compensated and adjusted through the same data processing module.

[0081] In addition, the driver integrated circuit 5 can simultaneously compensate for the power supply voltage, reset voltage and gamma voltage according to the voltage compensation schemes for the power supply voltage and reset voltage and the voltage compensation scheme for the gamma voltage stored in the compensation data storage module 56 in advance, and the correspondence between them and different temperatures, so as to ensure that the brightness of the display panel 1 is consistent and uniform when the display panel 1 is used at different temperatures.

[0082] In the second embodiment of this utility model, as Figure 4 As shown, the foam layer 2 of the display module is provided with multiple sensing openings 21, and there are multiple temperature sensors 4; the display panel 1 is divided into multiple sensing areas, and each temperature sensor 4 corresponds to one sensing area; the multiple temperature sensors 4 are electrically connected to each other through a second flexible circuit board 32 to form a temperature sensor group, which is used to measure the current temperature of each sensing area on the display panel 1; the temperature sensor group is electrically connected to the first flexible circuit board 31 through a third flexible circuit board 33, and a temperature integrated circuit 331 is provided on the third flexible circuit board 33, which is used to calculate the current overall temperature distribution of the display panel 1 based on the temperature of each sensing area on the display panel 1 measured by the temperature sensor group; the driving integrated circuit 5 adjusts the driving voltage output to the display panel 1 based on the current overall temperature distribution calculated by the temperature integrated circuit 331 and the corresponding voltage compensation scheme.

[0083] In this embodiment, the display module contains multiple temperature sensors 4, which are respectively located at different positions on the display panel 1, thereby forming multiple sensing areas at different positions on the display panel 1. For example... Figure 4 As shown, the display module has eight temperature sensors 4, which are distributed across different areas of the display panel 1 to form a temperature detection matrix, enabling monitoring of the temperature at different locations on the screen. In this case, as... Figure 5 As shown, Figure 5 for Figure 2 The diagram illustrates the overall temperature distribution of the display panel as measured by the temperature sensor group in the illustrated embodiment. The left image shows the positions of the eight temperature sensors 4 dispersed in different areas of the display panel 1; the right image shows the display panel 1 with colors decreasing from dark to light from left to right, indicating that the temperature of the display panel 1 gradually decreases from left to right.

[0084] The temperature data calculation module 3311 in the temperature integrated circuit 331 can calculate the current overall temperature distribution of the display panel 1 based on the temperature signal of each sensing area using a linear interpolation algorithm.

[0085] The third flexible circuit board 33 transmits the current overall temperature distribution of the display panel to the driving integrated circuit 5 through the first flexible circuit board 31. The driving integrated circuit can adjust the driving voltage output to the display panel 1 according to the current overall temperature distribution and the corresponding voltage compensation scheme.

[0086] In the second embodiment of this utility model, compensation can be made for the power supply voltage and the reset voltage, such as... Figure 6 As shown, Figure 6 for Figure 4The diagram shows a first circuit schematic of the driver integrated circuit in the display module. The driver integrated circuit 5 includes: a third data processing module 513, and a second power supply voltage control module 531 and a second reset voltage generation module 532 electrically connected to the third data processing module 513; the third data processing module 513 is electrically connected to the temperature integrated circuit 331, and is used to obtain power supply voltage compensation parameters and reset voltage compensation parameters corresponding to the current temperature based on the current overall temperature distribution and voltage compensation scheme of the display panel 1; and based on the power supply voltage compensation parameters and reset voltage compensation parameters, control the second power supply voltage control module 531 to output a corresponding power supply control voltage signal to adjust the power supply voltage of the display panel 1; and control the second reset voltage generation module 532 to generate a corresponding reset voltage and output it to the display panel 1.

[0087] In this embodiment, when the driving integrated circuit 5 has a second power supply voltage control module 531 and a second reset voltage generation module 532, the temperature sensor group is electrically connected to the temperature integrated circuit 331, enabling the current temperature of each sensing area in the display panel 1 to be transmitted to the temperature integrated circuit 331. (See also...) Figure 6 The temperature integrated circuit 331 may include a second temperature data receiving module 552 and a temperature data calculation module 3311. After receiving the current temperature of each sensing area, the second temperature data receiving module 552 in the temperature integrated circuit 331 transmits the temperature signal to the temperature data calculation module 3311. Based on the current temperature of each sensing area, the temperature data calculation module 3311 calculates the current overall temperature distribution of the display panel 1 using a linear interpolation algorithm, and transmits the current overall temperature distribution of the display panel 1 to the third data processing module 513. See also... Figure 6 The third data processing module 513 may include: a first temperature receiving module 551, a compensation data storage module 56, and a temperature data judgment and compensation data lookup module 57. The compensation data storage module 56 may also be a compensation logic storage module or a compensation table storage module.

[0088] like Figure 6 As shown, the temperature data calculation module 3311 is electrically connected to the first temperature receiving module 551, and the second power supply voltage control module 531 and the second reset voltage generation module 532 are electrically connected to the third data processing module 513. The temperature data calculation module 3311 transmits the calculated temperature distribution data to the first temperature receiving module 551 in the third data processing module 513. The temperature data judgment and compensation data lookup module 57 in the third data processing module 513 can transmit signals to the second power supply voltage control module 531 and the second reset voltage generation module 532.

[0089] After receiving the temperature signal from the temperature sensor group, the first temperature data receiving module 551 uses the temperature data judgment and compensation data lookup module 57 to obtain a pre-set voltage compensation scheme corresponding to the current overall temperature distribution of the display panel 1 from the compensation data storage module 56. For example, the average temperature value of the display panel 1 can be calculated based on the current overall temperature distribution. The driver integrated circuit 5 then obtains the voltage compensation scheme corresponding to the current average temperature based on the average temperature value of the display panel 1 and referring to the data in Table 1 mentioned above.

[0090] Please continue reading Figure 6 Based on the voltage compensation scheme corresponding to the average current overall temperature of display panel 1, driver integrated circuit 5 obtains power supply voltage compensation parameters and reset voltage compensation parameters corresponding to the current overall temperature distribution. According to the power supply voltage compensation parameters, driver integrated circuit 5 controls the second power supply voltage control module 531 to send a power supply control voltage signal to the motherboard power module 54. After receiving the power supply control voltage signal, the motherboard power module 54 outputs the compensated power supply voltage to display panel 1. According to the reset voltage compensation parameters, driver integrated circuit 5 controls the second reset voltage generation module 532 to generate the corresponding reset voltage and output it to display panel 1. In this way, driver integrated circuit 5 can dynamically compensate for the power supply voltage and reset voltage in real time according to the real-time changes in the temperature of display panel 1.

[0091] During the voltage compensation process described above, the reset voltage is compensated synchronously while the power supply voltage is being compensated, so that the two always maintain the same voltage difference, thereby ensuring that the image quality on the display panel remains consistent.

[0092] In the second embodiment of this utility model, gamma voltage compensation can also be performed, such as... Figure 7 As shown, Figure 7 for Figure 4 The diagram shows a second circuit schematic of the driver integrated circuit in the display module. The display panel 1 includes multiple pixel circuits; the driver integrated circuit 5 is equipped with a fourth data processing module 514 and a second gamma voltage generation module 533 electrically connected to the fourth data processing module 514; the fourth data processing module 514 is electrically connected to a temperature integrated circuit 331, and is used to obtain multiple gamma voltage compensation parameters corresponding to the current temperature of each pixel circuit based on the current overall temperature distribution and voltage compensation scheme of the display panel 1; and based on the multiple gamma voltage compensation parameters, control the second gamma voltage generation module 533 to generate a corresponding gamma voltage for each pixel circuit and output it to each pixel circuit.

[0093] In this embodiment, the driving integrated circuit 5 has a second gamma voltage generation module 533, and the temperature sensor group is electrically connected to the temperature integrated circuit 331, enabling the transmission of the current temperature of each sensing area in the display panel 1 to the temperature integrated circuit 331. (See also...) Figure 7 The temperature integrated circuit 331 may include a second temperature data receiving module 552 and a temperature data calculation module 3311. After receiving the current temperature of each sensing area, the second temperature data receiving module 552 in the temperature integrated circuit 331 transmits the temperature signal to the temperature data calculation module 3311. Based on the current temperature of each sensing area, the temperature data calculation module 3311 calculates the current overall temperature distribution of the display panel 1 using a linear interpolation algorithm, and transmits the current overall temperature distribution of the display panel 1 to the fourth data processing module 514.

[0094] See Figure 7 The fourth data processing module 514 may include: a first temperature receiving module 551, a compensation data storage module 56, and a temperature data judgment and compensation data lookup module 57. The compensation data storage module 56 may also be a compensation logic storage module or a compensation table storage module.

[0095] like Figure 7 As shown, the temperature data calculation module 3311 is electrically connected to the first temperature receiving module 551, and the second gamma voltage generation module 533 is electrically connected to the fourth data processing module 514. The temperature data calculation module 3311 transmits the calculated temperature distribution data to the first temperature receiving module 551 in the fourth data processing module 514, and the temperature data judgment and compensation data lookup module 57 in the fourth data processing module 514 can transmit the signal to the second gamma voltage generation module 533.

[0096] After receiving the temperature signal, the first temperature data receiving module 551 uses the temperature data judgment and compensation data lookup module 57 to obtain the current temperature of each pixel circuit located at different positions in the display panel 1 based on the current overall temperature of the display panel 1. Then, based on the current temperature of each pixel circuit, it retrieves a pre-set voltage compensation scheme corresponding to the current temperature of each pixel circuit from the compensation data storage module 56. The voltage compensation schemes corresponding to different temperature ranges are shown in Table 2.

[0097] Please continue reading Figure 7Based on the voltage compensation scheme corresponding to the current temperature of each pixel circuit, the driver integrated circuit 5 obtains the gamma voltage compensation parameters corresponding to the current temperature of each pixel circuit. Since the gamma voltage has a Source channel of the driver integrated circuit 5, it can control the Source voltage of each column of pixel circuits; and the pixel circuits are scanned line by line through GOA (Gate Driver on Array). This allows the driver integrated circuit 5 to control the second gamma voltage generation module 533 to generate gamma voltages corresponding to each pixel circuit according to the gamma voltage compensation parameters of each pixel circuit, and output them to each pixel circuit respectively. This ensures that the overall brightness of the display panel 1 is the same at different temperatures, while also maintaining the uniformity of the overall brightness of the display panel 1. In this way, the driver integrated circuit 5 can dynamically compensate the gamma voltage of each pixel circuit in real time according to the real-time changes in the temperature of the display panel 1.

[0098] The driver integrated circuit 5 can simultaneously compensate for the power supply voltage, reset voltage, and gamma voltage according to the voltage compensation schemes for the power supply voltage and reset voltage and the gamma voltage that are pre-stored in the compensation data storage module 56 and the correspondence between them and different temperatures. This ensures that the brightness of the display panel 1 is consistent and uniform when used at different temperatures.

[0099] In the above embodiments of this utility model, see Figure 1 and Figure 4 The first flexible circuit board 31 and the temperature sensor 4 can be electrically connected via a zero-insertion-force (ZIF) connector 6 or a board-to-board (BTB) connector 6; the foam layer 2 is copper foil foam; and the display module also includes a polarizer 7, an adhesive material 8, and a glass cover plate 9 arranged sequentially along the side of the display panel 1 away from the foam layer 2. This effectively protects the display module and improves the display effect.

[0100] This utility model also provides a display device, including the display module described in any of the above embodiments.

[0101] This utility model also provides a method for compensating the brightness of a display panel, applicable to any of the display modules described above, such as... Figure 1 , Figure 4 and Figure 9 As shown, Figure 9 A flowchart of the first embodiment of the display panel brightness compensation method provided by this utility model. The method includes:

[0102] S100: Based on temperature sensor 4, obtain the current temperature of display panel 1;

[0103] S200. Based on the current temperature of the display panel 1 and the preset voltage compensation scheme, determine the voltage compensation scheme corresponding to the current temperature.

[0104] S300: Adjust the voltage output to the display panel 1 based on the voltage compensation scheme corresponding to the current temperature.

[0105] In this embodiment, a temperature sensor 4 is provided in the display module. The temperature sensor 4 can directly detect the real-time temperature of the display panel 1 in the display module through the sensing opening 21 on the foam layer 2. The driving integrated circuit 5 located on the bending area 12 on the back side of the foam layer 2 of the display panel 1 can receive the temperature signal output by the temperature sensor 4 through the first flexible circuit board 31.

[0106] Temperature sensor 4 converts the measured temperature data of display panel 1 into a temperature signal. The temperature signal is transmitted to the first flexible circuit board 31 via the second flexible circuit board 32, and then to the driver integrated circuit 5 via the first flexible circuit board 31. Based on the current temperature of display panel 1 and a preset voltage compensation scheme, the driver integrated circuit 5 adjusts the voltage output to display panel 1 so that the display panel can maintain the same brightness at different temperatures, thereby improving the problem of inconsistent overall brightness of the display panel under different temperature environments.

[0107] As mentioned above, the display module provided by this utility model is divided into a first embodiment and a second embodiment, depending on the number of temperature sensors. The compensation methods for brightness compensation of the display panel also differ between the different embodiments. Therefore, the display modules provided in the first and second embodiments of this utility model will be described separately below.

[0108] The first embodiment of the display module provided by this utility model has one temperature sensor, and the structure of the display module is as follows: Figure 1 As shown.

[0109] In this case Figure 9 Step S300 shown may include:

[0110] Based on the current temperature, determine the voltage compensation scheme corresponding to the current temperature from the preset correspondence between temperature and voltage compensation schemes; adjust the voltage output to the display panel based on the voltage compensation scheme corresponding to the current temperature, including: uniformly adjusting the voltage output to the display panel based on the voltage compensation scheme corresponding to the current temperature.

[0111] Specifically, based on the voltage compensation scheme corresponding to the current temperature, the voltage output to the display panel can be adjusted uniformly in two ways:

[0112] The first compensation method is to obtain the power supply voltage compensation parameters and reset voltage compensation parameters corresponding to the current temperature based on the current temperature and the corresponding voltage compensation scheme of the display panel; based on the power supply voltage compensation parameters and reset voltage compensation parameters, output the power supply control voltage signal corresponding to the power supply voltage compensation parameters to adjust the power supply voltage of the display panel; and generate the reset voltage corresponding to the reset voltage compensation parameters and output it to the display panel.

[0113] The second compensation method is to uniformly adjust the voltage on the display panel based on the voltage compensation scheme corresponding to the current temperature. This includes: obtaining the gamma voltage compensation parameters corresponding to the current temperature based on the current temperature and voltage compensation scheme of the display panel; generating the corresponding gamma voltage based on the gamma voltage compensation parameters and outputting it to the display panel.

[0114] The following will provide a detailed explanation of the two compensation methods mentioned above.

[0115] In some embodiments of this utility model, see Figure 10 , Figure 10 This is a flowchart of a second embodiment of the display panel brightness compensation method provided by this utility model. This embodiment is the first compensation method mentioned above, that is, by compensating the power supply voltage and reset voltage, the overall brightness of the display panel 1 is uniformly adjusted.

[0116] like Figure 10 As shown, it includes the following steps:

[0117] S100: Based on temperature sensor 4, obtain the current temperature of display panel 1;

[0118] S201. Based on the current temperature, determine the correspondence between the different temperature ranges corresponding to the current temperature and the power supply voltage compensation value and the reset voltage compensation value from the preset temperature and voltage compensation scheme.

[0119] S3011. Based on the temperature range to which the current temperature belongs, obtain the power supply voltage compensation parameters and reset voltage compensation parameters corresponding to that temperature range;

[0120] S3012. Based on the power supply voltage compensation parameters and reset voltage compensation parameters, compensate the current power supply voltage and reset voltage of the display panel with the corresponding power supply voltage compensation values ​​and reset voltage compensation values.

[0121] In this embodiment, when the driver integrated circuit 5 has a first power supply voltage control module 521 and a first reset voltage generation module 522, the temperature sensor 4 is electrically connected to the first data processing module 511 in the driver integrated circuit 5, and can transmit the current temperature of the display panel 1 to the first data processing module 511. See also Figure 2 After receiving the temperature signal, the first temperature data receiving module 551 in the first data processing module 511 uses the temperature data judgment and compensation data lookup module 57 to obtain the pre-set power supply voltage compensation parameters and reset voltage compensation parameters corresponding to the current temperature of the display panel 1 from the compensation data storage module 56. The power supply voltage compensation parameters and reset voltage compensation parameters corresponding to different temperature ranges are shown in Table 1.

[0122] Please continue reading Figure 2 and Figure 10 Based on the voltage compensation scheme corresponding to the current temperature of display panel 1, driver integrated circuit 5 obtains power supply voltage compensation parameters and reset voltage compensation parameters corresponding to the current temperature. According to the power supply voltage compensation parameters, driver integrated circuit 5 controls the first power supply voltage control module 521 to send a power supply control voltage signal to the motherboard power module 54. After receiving the power supply control voltage signal, the motherboard power module 54 generates a corresponding power supply voltage compensation value to compensate the current power supply voltage, so that the motherboard power module 54 generates a power supply voltage corresponding to the current temperature and outputs it to display panel 1. Similarly, driver integrated circuit 5 generates a corresponding reset voltage compensation value according to the reset voltage compensation parameters to compensate the current reset voltage, so that the first reset voltage generation module 522 generates a reset voltage corresponding to the current temperature and outputs it to display panel 1. This ensures that the display panel maintains the same brightness at different temperatures, thereby improving the problem of inconsistent overall brightness of the display panel under different temperature environments. In this way, driver integrated circuit 5 can dynamically compensate the power supply voltage and reset voltage in real time according to the real-time changes in the temperature of display panel 1.

[0123] During the voltage compensation process described above, the reset voltage is compensated synchronously while the power supply voltage is being compensated, so that the two always maintain the same voltage difference, thereby ensuring that the image quality on the display panel remains consistent.

[0124] When using the second compensation method mentioned above, that is, by compensating the gamma voltage, the current gamma voltage can be compensated by increasing or decreasing the gamma compensation value based on the current gamma voltage value.

[0125] For details, see Figure 11 , Figure 11This is a flowchart of the third embodiment of the display panel brightness compensation method provided by this utility model. In this embodiment, the current gamma voltage is compensated by a gamma compensation value to uniformly adjust the overall brightness of the display panel 1.

[0126] like Figure 11 As shown, it includes the following steps:

[0127] S100: Based on temperature sensor 4, obtain the current temperature of display panel 1;

[0128] S202. Based on the current temperature, determine the correspondence between different temperature ranges corresponding to the current temperature and the gamma voltage compensation value from the preset correspondence between temperature and voltage compensation schemes.

[0129] S3021. Based on the temperature range to which the current temperature belongs, obtain the gamma voltage compensation parameters corresponding to that temperature range;

[0130] S3022. Based on the gamma voltage compensation parameters, the current gamma voltage of the display panel is compensated with the corresponding gamma voltage compensation value.

[0131] In this embodiment, when the driving integrated circuit 5 has a first gamma voltage generation module 523, the temperature sensor 4 is electrically connected to the second data processing module 512 in the driving integrated circuit 5, and can transmit the current temperature of the display panel 1 to the second data processing module 512. (See also...) Figure 3 After receiving the temperature signal, the first temperature data receiving module 551 in the second data processing module 512 uses the temperature data judgment and compensation data lookup module 57 to obtain a pre-set voltage compensation scheme corresponding to the current temperature of the display panel 1 from the compensation data storage module 56. The voltage compensation schemes corresponding to different temperature ranges are shown in Table 2.

[0132] Please continue reading Figure 3 and Figure 11 Based on the voltage compensation scheme corresponding to the current temperature of display panel 1, driver integrated circuit 5 obtains gamma voltage compensation parameters corresponding to the current temperature. Driver integrated circuit 5 generates a corresponding gamma voltage compensation value based on the gamma voltage compensation parameters to compensate the current gamma voltage, so that the first gamma voltage generation module 523 generates a gamma voltage corresponding to the current temperature and outputs it to display panel 1. This ensures that the display panel maintains the same brightness at different temperatures, thereby improving the problem of inconsistent overall brightness of the display panel under different temperature environments. In this way, driver integrated circuit 5 can dynamically compensate the gamma voltage in real time according to the real-time changes in the temperature of display panel 1.

[0133] When using the second compensation method mentioned above, that is, by compensating the gamma voltage, the current gamma voltage can also be compensated by directly switching the gamma voltage corresponding to the current temperature.

[0134] For details, see Figure 12 , Figure 12 This is a flowchart of the fourth embodiment of the display panel brightness compensation method provided by this utility model. In this embodiment, the current gamma voltage is compensated by directly switching the gamma voltage corresponding to the current temperature, so as to uniformly adjust the overall brightness of the display panel 1.

[0135] like Figure 12 As shown, it includes the following steps:

[0136] S100: Based on temperature sensor 4, obtain the current temperature of display panel 1;

[0137] S203. Based on the current temperature, determine the correspondence between different temperature ranges and gamma voltage values ​​corresponding to the current temperature from the preset correspondence between temperature and voltage compensation schemes.

[0138] S3031. Based on the temperature range to which the current temperature belongs, obtain the gamma compensation parameters corresponding to that temperature range;

[0139] S3032: Based on gamma voltage compensation parameters, directly output the gamma voltage value corresponding to the current temperature of the display panel.

[0140] In this embodiment, when the driving integrated circuit 5 has a first gamma voltage generation module 523, the temperature sensor 4 is electrically connected to the second data processing module 512 in the driving integrated circuit 5, and can transmit the current temperature of the display panel 1 to the second data processing module 512. (See also...) Figure 3 After receiving the temperature signal, the first temperature data receiving module 551 in the second data processing module 512 uses the temperature data judgment and compensation data lookup module 57 to obtain a pre-set voltage compensation scheme corresponding to the current temperature of the display panel 1 from the compensation data storage module 56. The voltage compensation schemes corresponding to different temperature ranges are shown in Table 2.

[0141] Please continue reading Figure 3 and Figure 11Based on the voltage compensation scheme corresponding to the current temperature of the display panel 1, the driver integrated circuit 5 obtains the gamma voltage compensation parameters corresponding to the current temperature. The driver integrated circuit 5 switches the corresponding gamma voltage according to the gamma voltage compensation parameters to compensate the current gamma voltage, thereby enabling the first gamma voltage generation module 523 to generate a gamma voltage corresponding to the current temperature and output it to the display panel 1. This ensures that the display panel maintains the same brightness at different temperatures, thus improving the problem of inconsistent overall brightness of the display panel under different temperature environments. In this way, the driver integrated circuit 5 can dynamically compensate the gamma voltage in real time according to the real-time changes in the temperature of the display panel 1.

[0142] The first embodiment of the display module provided by this utility model has multiple temperature sensors, and the structure of the display module is as follows: Figure 4 As shown.

[0143] In this case Figure 9 Step S300 shown can be implemented in two ways:

[0144] The first compensation method compensates for the power supply voltage and reset voltage. Based on the current overall temperature distribution, the voltage compensation scheme corresponding to the current temperature is determined from the preset correspondence between temperature and voltage compensation schemes. The voltage output to the display panel 1 is adjusted based on the voltage compensation scheme corresponding to the current temperature, including: uniformly adjusting the voltage output to the display panel 1 based on the voltage compensation scheme corresponding to the current overall temperature distribution.

[0145] The second compensation method compensates for the gamma voltage. Based on the current temperature of the display panel and a preset voltage compensation scheme, the voltage compensation scheme corresponding to the current temperature is determined. This includes: determining the current temperature of each pixel circuit located at different positions in the display panel based on the current overall temperature distribution of the display panel; determining the voltage compensation scheme corresponding to each pixel circuit from the preset correspondence between temperature and voltage compensation schemes; and adjusting the voltage output to the display panel based on the voltage compensation scheme corresponding to the current temperature. This includes: adjusting the voltage of each pixel circuit on the display panel individually based on the voltage compensation scheme corresponding to each pixel circuit.

[0146] The following will provide a detailed explanation of the two compensation methods mentioned above.

[0147] In the first compensation method described above, based on the voltage compensation scheme corresponding to the current overall temperature distribution, the voltage output to display panel 1 is uniformly adjusted, including:

[0148] Based on the current overall temperature distribution and voltage compensation scheme of the display panel, obtain the power supply voltage compensation parameters and reset voltage compensation parameters corresponding to the current overall temperature distribution; based on the power supply voltage compensation parameters and reset voltage compensation parameters, output the corresponding power supply control voltage signal to adjust the power supply voltage of the display panel; and generate the corresponding reset voltage, output to the display panel, and uniformly adjust each sensing area.

[0149] For details, see Figure 13 , Figure 13 This is a flowchart of the fifth embodiment of the display panel brightness compensation method provided by this utility model. This embodiment is the first compensation method mentioned above, that is, by compensating the power supply voltage and reset voltage, the overall brightness of the display panel 1 is uniformly adjusted.

[0150] like Figure 13 As shown, it includes the following steps:

[0151] S100: Based on temperature sensor 4, obtain the current temperature of display panel 1;

[0152] S204. Based on the current overall temperature distribution, determine the correspondence between the different temperature ranges corresponding to the current temperature and the power supply voltage compensation value and the reset voltage compensation value from the preset temperature and voltage compensation scheme.

[0153] S3041. Based on the temperature range to which the current overall temperature distribution belongs, obtain the power supply voltage compensation parameters and reset voltage compensation parameters corresponding to the temperature range.

[0154] S3042. Based on the power supply voltage compensation parameters and reset voltage compensation parameters, compensate the current power supply voltage and reset voltage of the display panel with the corresponding power supply voltage compensation values ​​and reset voltage compensation values.

[0155] In this embodiment, when the driving integrated circuit 5 has a second power supply voltage control module 531 and a second reset voltage generation module 532, the temperature sensor group is electrically connected to the temperature integrated circuit 331, enabling the current temperature of each sensing area in the display panel 1 to be transmitted to the temperature integrated circuit 331. The second temperature data receiving module 552 in the temperature integrated circuit 331 transmits the temperature signal to the temperature data calculation module 3311 after receiving the current temperature of each sensing area. The temperature data calculation module 3311 calculates the current overall temperature distribution of the display panel 1 based on the current temperature of each sensing area using a linear interpolation algorithm, and transmits the current overall temperature distribution of the display panel 1 to the third data processing module 513.

[0156] The temperature data calculation module 3311 uses a linear interpolation algorithm to calculate the current overall temperature distribution of the display panel 1. This includes: the temperature data calculation module 3311 calculates a temperature distribution curve for the display panel based on the temperatures of multiple sensing areas using a linear interpolation algorithm. Each point on the temperature distribution curve represents a pixel circuit on the display panel. Based on this temperature distribution curve, the current temperature of each pixel circuit on the display panel can be obtained.

[0157] See Figure 6 and Figure 13 After receiving the temperature signal from the temperature sensor group, the first temperature data receiving module 551 in the third data processing module 513 obtains the pre-set voltage compensation scheme corresponding to the current overall temperature distribution of the display panel 1 from the compensation data storage module 56 through the temperature data judgment and compensation data lookup module 57. The voltage compensation schemes corresponding to different temperature ranges are shown in Table 1.

[0158] Please continue reading Figure 6 and Figure 13 Based on the voltage compensation scheme corresponding to the average value of the current overall temperature of display panel 1, driver integrated circuit 5 obtains power supply voltage compensation parameters and reset voltage compensation parameters corresponding to the current overall temperature distribution. According to the power supply voltage compensation parameters, driver integrated circuit 5 controls the first power supply voltage control module 521 to send a power supply control voltage signal to the motherboard power module 54. After receiving the power supply control voltage signal, the motherboard power module 54 generates a corresponding power supply voltage compensation value to compensate the current power supply voltage, so that the motherboard power module 54 generates a power supply voltage corresponding to the average value of the current overall temperature distribution and outputs it to display panel 1. Similarly, driver integrated circuit 5 generates a corresponding reset voltage compensation value according to the reset voltage compensation parameters to compensate the current reset voltage, so that the first reset voltage generation module 522 generates a reset voltage corresponding to the current temperature and outputs it to display panel 1. In this way, driver integrated circuit 5 can dynamically compensate the power supply voltage and reset voltage in real time according to the real-time changes in the temperature of display panel 1.

[0159] During the voltage compensation process described above, the reset voltage is compensated synchronously while the power supply voltage is being compensated, so that the two always maintain the same voltage difference, thereby ensuring that the image quality on the display panel remains consistent.

[0160] In the second compensation method described above, based on the voltage compensation scheme corresponding to each pixel circuit, the voltage of each pixel circuit on the display panel is adjusted individually, including: obtaining multiple gamma voltage compensation parameters corresponding to the current temperature of the location of each pixel circuit on the display panel based on the current overall temperature distribution of the display panel and the voltage compensation scheme; generating a corresponding gamma voltage for each pixel circuit based on the multiple gamma voltage compensation parameters, and outputting it to each pixel circuit.

[0161] When using the second compensation method mentioned above, that is, by compensating the gamma voltage, the current gamma voltage can be compensated by increasing or decreasing the gamma compensation value based on the current gamma voltage value.

[0162] For details, see Figure 14 , Figure 14 This is a flowchart of the sixth embodiment of the display panel brightness compensation method provided by this utility model. In this embodiment, the current gamma voltage is compensated by a gamma compensation value to compensate the brightness of each sensing area of ​​the display panel 1.

[0163] like Figure 14 As shown, it includes the following steps:

[0164] S100: Based on temperature sensor 4, obtain the current temperature of display panel 1;

[0165] S205. Based on the current overall temperature distribution, determine the correspondence between the different temperature ranges corresponding to the current temperature and the gamma voltage compensation value from the preset correspondence between temperature and voltage compensation schemes.

[0166] S2051. Based on the current overall temperature distribution of the display panel, determine the current temperature of each pixel circuit located at different positions in the display panel;

[0167] S2052. Determine the voltage compensation scheme for each pixel circuit from the preset correspondence between temperature and voltage compensation schemes.

[0168] S3051. Based on the current temperature at the location of each pixel circuit, obtain the gamma voltage compensation parameters corresponding to each pixel circuit.

[0169] S3052. Based on the gamma voltage compensation parameters corresponding to each pixel circuit, the current gamma voltage of each pixel circuit is compensated using the corresponding gamma voltage compensation value.

[0170] In this embodiment, when the driving integrated circuit 5 has a second gamma voltage generation module 533, the temperature sensor group is electrically connected to the temperature integrated circuit 331, enabling the current temperature of each sensing area in the display panel 1 to be transmitted to the temperature integrated circuit 331. The second temperature data receiving module 552 in the temperature integrated circuit 331, after receiving the current temperature of each sensing area, transmits the temperature signal to the temperature data calculation module 3311. The temperature data calculation module 3311 calculates the current overall temperature distribution of the display panel 1 based on the current temperature of each sensing area using a linear interpolation algorithm, and transmits the current overall temperature distribution of the display panel 1 to the fourth data processing module 514.

[0171] See Figure 7 and Figure 14 After receiving the temperature signal, the second temperature data receiving module 552 in the fourth data processing module 514 uses the temperature data judgment and compensation data lookup module 57 to obtain the current temperature of each pixel circuit located at different positions in the display panel 1 based on the current overall temperature of the display panel 1. Then, based on the current temperature of each pixel circuit, it retrieves a pre-set voltage compensation scheme corresponding to the current temperature of each pixel circuit from the compensation data storage module 56. The voltage compensation schemes corresponding to different temperature ranges are shown in Table 2.

[0172] Please continue reading Figure 7 and Figure 14 Based on the voltage compensation scheme corresponding to the current temperature of each pixel circuit, the driver integrated circuit 5 obtains the gamma voltage compensation parameters corresponding to the current temperature of each pixel circuit. Since the gamma voltage has a Source channel in the driver integrated circuit 5, it can control the Source voltage of each column of pixel circuits; and the pixel circuits are scanned row by row through GOA. This allows the driver integrated circuit 5 to generate corresponding gamma voltage compensation values ​​according to the gamma voltage compensation parameters of each pixel circuit, thereby compensating the gamma voltage of each pixel circuit separately. This controls the second gamma voltage generation module 533 to generate gamma voltages corresponding to the current temperature of each pixel circuit, and sends them to each pixel circuit of the corresponding display panel 1. This ensures that the overall brightness of the display panel 1 is the same at different temperatures, while also maintaining the uniformity of the overall brightness of the display panel 1. In this way, the driver integrated circuit 5 can dynamically compensate the gamma voltage of each pixel circuit in real time according to the real-time changes in the temperature of the display panel 1.

[0173] When using the second compensation method mentioned above, that is, by compensating the gamma voltage, the current gamma voltage can also be compensated by directly switching the gamma voltage corresponding to the current temperature.

[0174] For details, see Figure 15 , Figure 15 This is a flowchart of the seventh embodiment of the display panel brightness compensation method provided by this utility model. In this embodiment, the current gamma voltage is compensated by directly switching the gamma voltage corresponding to the current temperature, so as to compensate the brightness of each sensing area of ​​the display panel 1.

[0175] like Figure 15 As shown, it includes the following steps:

[0176] S100: Based on temperature sensor 4, obtain the current temperature of display panel 1;

[0177] S2061. Based on the current overall temperature distribution of the display panel, determine the current temperature of each pixel circuit located at different positions in the display panel;

[0178] S2062. Determine the voltage compensation scheme corresponding to each pixel circuit from the preset correspondence between temperature and voltage compensation schemes.

[0179] S3061. Based on the current temperature at the location of each pixel circuit, obtain the gamma voltage compensation parameters corresponding to each pixel circuit.

[0180] S3062. Based on the gamma voltage compensation parameters corresponding to each pixel circuit, the corresponding gamma voltage value is directly output to each pixel circuit.

[0181] In this embodiment, when the driving integrated circuit 5 has a first gamma voltage generation module 523, the temperature sensor group is electrically connected to the temperature integrated circuit 331, enabling the current temperature of each sensing area in the display panel 1 to be transmitted to the temperature integrated circuit 331. The second temperature data receiving module 552 in the temperature integrated circuit 331, after receiving the current temperature of each sensing area, transmits the temperature signal to the temperature data calculation module 3311. The temperature data calculation module 3311 calculates the current overall temperature distribution of the display panel 1 based on the current temperature of each sensing area using a linear interpolation algorithm, and transmits the current overall temperature distribution of the display panel 1 to the fourth data processing module 514.

[0182] See Figure 7 and Figure 15After receiving the temperature signal, the second temperature data receiving module 552 in the fourth data processing module 514 uses the temperature data judgment and compensation data lookup module 57 to obtain the current temperature of each pixel circuit located at different positions in the display panel 1 based on the current overall temperature of the display panel 1. Then, based on the current temperature of each pixel circuit, it retrieves a pre-set voltage compensation scheme corresponding to the current temperature of each pixel circuit from the compensation data storage module 56. The voltage compensation schemes corresponding to different temperature ranges are shown in Table 2.

[0183] Please continue reading Figure 7 and Figure 15 Based on the voltage compensation scheme corresponding to the current temperature of each pixel circuit, the driver integrated circuit 5 obtains the gamma voltage compensation parameters corresponding to the current temperature of each pixel circuit. Since the gamma voltage has a Source channel in the driver integrated circuit 5, it can control the Source voltage of each column of pixel circuits; and the pixel circuits are scanned row by row via GOA. This allows the driver integrated circuit 5 to control the second gamma voltage generation module 533 to directly generate the gamma voltage corresponding to each pixel circuit according to the gamma voltage compensation parameters of each pixel circuit, and then send them to each pixel circuit of the display panel 1 to compensate the gamma voltage of each pixel circuit separately. This ensures that the overall brightness of the display panel 1 is the same at different temperatures, while also maintaining the uniformity of the overall brightness of the display panel 1. In this way, the driver integrated circuit 5 can dynamically compensate the gamma voltage of each pixel circuit in real time according to the real-time changes in the temperature of the display panel 1.

[0184] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model are included within the scope of protection of this utility model.

Claims

1. A display module, characterized in that, include: Display panel, foam layer, first flexible circuit board and temperature sensor; The display panel includes a display area and a bending area; The foam layer covers the back side of the display area; the bending area of ​​the display panel bends to the back side of the foam layer; a driver integrated circuit is provided in the bending area of ​​the display panel. The temperature sensor is disposed in the sensing opening of the foam layer and is attached to the display panel for measuring the temperature of the display panel; and the temperature sensor is electrically connected to the driving integrated circuit through the first flexible circuit board to transmit the current temperature of the display panel to the driving integrated circuit. The driving integrated circuit adjusts the voltage output to the display panel based on the current temperature of the display panel and a preset voltage compensation scheme.

2. The display module according to claim 1, characterized in that, The foam layer has a sensing opening, and the number of the temperature sensors is one. The driver integrated circuit adjusts the voltage output to the display panel based on the current temperature measured by the temperature sensor and the corresponding voltage compensation scheme.

3. The display module according to claim 1 or 2, characterized in that, The driver integrated circuit includes: a first data processing module, a first power supply voltage control module and a first reset voltage generation module electrically connected to the first data processing module; The first data processing module is electrically connected to the temperature sensor and is used to obtain power supply voltage compensation parameters and reset voltage compensation parameters corresponding to the current temperature based on the current temperature of the display panel and the voltage compensation scheme; and based on the power supply voltage compensation parameters and reset voltage compensation parameters, control the first power supply voltage control module to output the corresponding power supply control voltage signal to adjust the power supply voltage of the display panel. The first reset voltage generation module is controlled to generate a corresponding reset voltage, which is then output to the display panel.

4. The display module according to claim 1 or 2, characterized in that, The driving integrated circuit includes: a second data processing module and a first gamma voltage generation module electrically connected to the second data processing module; The second data processing module is electrically connected to the temperature sensor and is used to obtain gamma voltage compensation parameters corresponding to the current temperature based on the current temperature of the display panel and the voltage compensation scheme, and to control the first gamma voltage generation module to generate the corresponding gamma voltage based on the gamma voltage compensation parameters and output it to the display panel.

5. The display module according to claim 1, characterized in that, The foam layer is provided with a plurality of sensing openings, and the number of temperature sensors is plurality; The display panel is divided into multiple sensing areas, with each temperature sensor corresponding to one sensing area. The multiple temperature sensors are electrically connected through a second flexible circuit board to form a temperature sensor group, which is used to measure the current temperature of each of the sensing areas on the display panel. The temperature sensor group is electrically connected to the first flexible circuit board through the third flexible circuit board. The third flexible circuit board is provided with a temperature integrated circuit for calculating the current overall temperature distribution of the display panel based on the temperature of each sensing area on the display panel measured by the temperature sensor group. The driving integrated circuit adjusts the driving voltage output to the display panel based on the current overall temperature distribution calculated by the temperature integrated circuit and the corresponding voltage compensation scheme.

6. The display module according to claim 5, characterized in that, The driver integrated circuit includes: a third data processing module, and a second power supply voltage control module and a second reset voltage generation module electrically connected to the third data processing module; The third data processing module is electrically connected to the temperature integrated circuit and is used to obtain the power supply voltage compensation parameters and reset voltage compensation parameters corresponding to the current temperature based on the current overall temperature distribution of the display panel and the voltage compensation scheme. Based on the power supply voltage compensation parameters and the reset voltage compensation parameters, the second power supply voltage control module is controlled to output the corresponding power supply control voltage signal to adjust the power supply voltage of the display panel. The second reset voltage generation module is controlled to generate a corresponding reset voltage, which is then output to the display panel.

7. The display module according to claim 5, characterized in that, The display panel includes: multiple pixel circuits; The driving integrated circuit includes: a fourth data processing module and a second gamma voltage generation module electrically connected to the fourth data processing module; The fourth data processing module is electrically connected to the temperature integrated circuit and is used to obtain multiple gamma voltage compensation parameters corresponding to the current temperature of the location of each pixel circuit based on the current overall temperature distribution of the display panel and the voltage compensation scheme; and based on the multiple gamma voltage compensation parameters, control the second gamma voltage generation module to generate corresponding gamma voltages for each pixel circuit and output them to each pixel circuit.

8. The display module according to claim 1, characterized in that, The first flexible circuit board is electrically connected to the temperature sensor via a zero-insertion-force connector or a board-to-board connector. The foam layer is copper foil foam; The display module further includes: A polarizer, adhesive material, and glass cover are sequentially arranged along the side of the display panel away from the foam layer.

9. A display device, characterized in that, The display module includes any one of claims 1-8.

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