Driving method of light source module, light emitting device, display device and display system

Abstract

A driving method of a light source module is used for a light emitting device, the light emitting device includes a driving unit, a converting unit, a compensation correction unit and the light source module, the driving unit outputs a light source driving signal according to a source, wherein the converting unit is coupled to the driving unit and the light source module, and the light source driving signal is used to drive a plurality of light emitting areas of a light emitting diode module corresponding to the light source module, wherein the driving method of the light source module includes the converting unit using the compensation correction unit to convert the light source driving signal into a plurality of modulated light source driving signals to drive each light emitting area corresponding to the light emitting diode module.

Description

Technical Field

[0001] This invention relates to a driving method for a light source module, a light-emitting device, a display device, and a display system, and particularly to a driving method for a light source module, a light-emitting device, a display device, and a display system that allows adjustment of the non-uniform characteristics of light-emitting diodes. Background Technology

[0002] Liquid crystal displays (LCDs) are widely used in electronic products such as flat-screen TVs, computer devices, and mobile phones. Existing LCDs typically include an LCD panel, a control chip assembly, a driver chip assembly, and a backlight module. The control chip assembly converts or processes image data, the driver chip assembly outputs corresponding voltage signals to the LCD panel, and the backlight module usually uses light-emitting diodes (LEDs) to create a backlight panel, serving as the light source for the LCD panel to achieve the display effect.

[0003] To save energy and increase image contrast in LCD monitors, existing LCD monitors typically employ local dimming technology. This technology activates different backlights corresponding to different display areas on the LCD panel at varying brightness levels based on the image data. For example, if the image data is brighter in one display area and darker in another, local dimming controls the LEDs in that area to operate at a brighter backlight brightness, while the backlight in the other area operates at a dimmer backlight brightness. Therefore, compared to normal operation where all backlights are operated at maximum brightness, local dimming technology saves power consumption.

[0004] In addition to its application in the field of liquid crystal display technology, local dimming technology can also be applied to general lighting fixtures. By controlling the light in different zones, it can correspond to different lighting areas without the need to set up multiple lamps of different shapes or functions to correspond to different lighting areas.

[0005] Generally, existing local dimming technologies are based on the assumption that the output current of each emitting area of ​​the lamp board is the same, and that under the same current, the brightness of each emitting area is the same. However, in reality, the output current of existing lamp boards may be affected by the manufacturing process characteristics of the driver chip, differences in circuit components, or differences in the layout of circuit components, thus causing uneven brightness in each emitting area under the same current. In this case, it is difficult to ensure that each emitting area after local dimming achieves the desired brightness for each zone; therefore, existing technologies need improvement. Summary of the Invention

[0006] In view of this, the present invention provides a driving method for a light source module, a light-emitting device, a display device, and a display system to improve the uneven brightness characteristics of each light-emitting area under the same current.

[0007] An embodiment of the present invention provides a driving method for a light source module for a light-emitting device. The light-emitting device includes a driving unit, a conversion unit, a compensation and correction unit, and the light source module. The driving unit outputs a light source driving signal according to a source. The conversion unit is coupled to the driving unit and the light source module. The light source driving signal is used to drive multiple light-emitting areas of a light-emitting diode module corresponding to the light source module. The driving method of the light source module includes the conversion unit using the compensation and correction unit to convert the light source driving signal into multiple modulated light source driving signals to drive each light-emitting area corresponding to the light-emitting diode module.

[0008] An embodiment of the present invention further provides a light-emitting device, comprising a driving unit for outputting a light source driving signal according to a source; a light source module including a light-emitting diode module, wherein the light source driving signal is used to drive a plurality of light-emitting regions corresponding to the light-emitting diode module; a conversion unit coupled to the driving unit and the light source module; and a compensation and correction unit coupled to the conversion unit, wherein the conversion unit uses the compensation and correction unit to convert the light source driving signal into a plurality of modulated light source driving signals to drive each light-emitting region corresponding to the light-emitting diode module.

[0009] Embodiments of the present invention also provide a display device comprising a liquid crystal display panel; a driving unit coupled to the liquid crystal display panel for outputting an image signal and a backlight driving signal according to an image source, wherein the image signal is used to drive the liquid crystal display panel to generate a corresponding image; a backlight module comprising a light-emitting diode module, and the backlight driving signal is used to drive a plurality of light-emitting areas corresponding to the light-emitting diode module of the backlight module; a conversion unit coupled to the driving unit and the backlight module; and a compensation and correction unit coupled to the conversion unit, wherein the conversion unit uses the compensation and correction unit to convert the backlight driving signal into a plurality of modulated backlight driving signals to drive each light-emitting area corresponding to the light-emitting diode module.

[0010] Embodiments of the present invention also provide a display system comprising a display device and an image source generating device. The display device includes a driving unit, a backlight module, and a liquid crystal display panel. The backlight module includes a light-emitting diode module. The image source generating device includes an image processor, a conversion unit, and a compensation and correction unit. The image processor outputs an image signal and a backlight driving signal based on the image source. The conversion unit is coupled to the image processor. The compensation and correction unit is coupled to the conversion unit and converts the backlight driving signal into a plurality of modulated backlight driving signals. The driving unit is coupled to the liquid crystal display panel and the backlight module and sends the image signal and the plurality of modulated backlight driving signals to the liquid crystal display panel and the backlight module, respectively. The image signal drives the liquid crystal display panel to generate a corresponding image, and the plurality of modulated backlight driving signals drive a plurality of light-emitting areas corresponding to the light-emitting diode module. Attached Figure Description

[0011] To make the above and other objects, features, advantages and embodiments of the present invention more apparent and understandable, the following description is now made with reference to the accompanying drawings.

[0012] Figure 1 This is a schematic diagram of a light-emitting device according to an embodiment of the present invention.

[0013] Figure 2 Embodiments of the present invention Figure 1 A schematic diagram of another embodiment of the light-emitting device, a light-emitting diode module.

[0014] Figure 3 , Figure 3A and Figure 3B This is a schematic diagram of a display device according to an embodiment of the present invention.

[0015] Figure 4 Embodiments of the present invention Figure 3 A schematic diagram of the LED module of the display device.

[0016] Figure 5 and Figure 5A This is a schematic diagram of a display system according to an embodiment of the present invention.

[0017] Figure 6 Embodiments of the present invention Figure 5 A schematic diagram of the LED module of the display device. Detailed Implementation

[0018] The relevant patent features and technical content of this invention will be clearly presented in the following detailed description of preferred embodiments with reference to the accompanying drawings. Before proceeding with the detailed description, it should be noted that similar elements are designated by the same reference numerals.

[0019] Please refer to Figure 1 , Figure 1 This is a schematic diagram of a light-emitting device 10 according to an embodiment of the present invention. The light-emitting device 10 includes a driving unit 102, a conversion unit 104, a light source module 106, and a compensation and correction unit 108. The light-emitting device 10 can be a lighting device. The driving unit 102 outputs a light driving signal (LDS) according to a source S, which can be a physical power switch or a software on / off signal for turning the lighting device on and off. The light source module 106 may include a light-emitting diode module 1062, which includes multiple light-emitting zones LZ, each of which corresponds to multiple light-emitting diodes (LEDs). In this example, each light-emitting zone LZ corresponds to four light-emitting diodes (LEDs). The light driving signal LDS is used to drive the multiple light-emitting zones corresponding to the light-emitting diode module 1062 of the light source module 106. A conversion unit 104 is coupled to a driving unit 102 and a light source module 106. A compensation and correction unit 108 is coupled to the conversion unit 104. The conversion unit 104 uses the compensation and correction unit 108 to convert the light source driving signal LDS into multiple modulated light driving signals M_LDS to drive each light-emitting area corresponding to the light-emitting diode module 1062. The compensation and correction unit 108 can adjust the light source driving signal LDS used to drive the light-emitting diode module 1062 according to the optical, circuit, and component characteristics of the light-emitting diode to generate the modulated light driving signal M_LDS. In this way, since the output current of each light-emitting area will be slightly different due to the correction effect of the compensation and correction unit 108 (that is, the modulated light driving signal M_LDS is different from the light source driving signal LDS), each light-emitting area can obtain uniform brightness characteristics. The light-emitting device 10 of this embodiment can improve the problem of uneven brightness of each light-emitting area under the same current in the prior art.

[0020] For details, please refer to Figure 2 , Figure 2 This is a schematic diagram of another embodiment of the light-emitting diode module 1062 according to an embodiment of the present invention. The light-emitting diode module 1062 has a plurality of light-emitting diodes (LEDs), and the number of LEDs in a unit area UA is greater than the number of light-emitting regions. For example, assuming that the range corresponding to a light-emitting region contains four LEDs, it means that there is one light-emitting region in a unit area UA, and that light-emitting region contains four LEDs. It is worth noting that the number of LEDs contained in each unit area UA is not limited to four.

[0021] Furthermore, the compensation and correction unit 108 in the embodiments of the present invention may have a first compensation and correction module 1082, which is used to store the light emission adjustment data of the non-uniform characteristics of the light emission diodes (LEDs) of the light emission diode module 1062, so that the conversion unit 104 can use the first compensation and correction module 1082 of the compensation and correction unit 108 to convert the light source driving signal LDS into multiple modulated light source driving signals M_LDS, and then drive the light emission diode module 1062 with the modulated light source driving signals M_LDS.

[0022] As discussed in the prior art, existing local dimming techniques are based on the assumption that the output current of each light-emitting area is the same, and that the brightness of each light-emitting area is the same under the same current. However, specifically, because each LED in the LED module 1062 has differences in manufacturing process, hardware components, or circuit layout, the characteristics of each LED are offset. Therefore, when each LED in the LED module 1062 is driven with the same current, the brightness produced by each LED may be different, thus affecting the brightness uniformity of the light source module 106. In an embodiment, the conversion unit 104 of the present invention can use the first compensation correction module 1082 to adjust the current value of the LED. The output current of each light-emitting area will be slightly different due to the correction effect of the first compensation correction module 1082, thereby obtaining uniform brightness characteristics and avoiding uneven brightness of the light-emitting areas. At this time, by applying existing local dimming techniques to the LED module 1062, it can be ensured that each light-emitting area after local dimming can achieve the desired zone brightness.

[0023] In another embodiment of the present invention, such as Figure 2As shown, the light-emitting diode module 106 may further include multiple light-emitting diode driving elements 1062_d1-1062_dn to drive the light-emitting diodes (LEDs) located in the corresponding light-emitting areas. In this case, since the characteristics of the light-emitting diode driving elements 1062_d1-1062_dn may also be affected by differences in manufacturing process, hardware components, or circuit layout, in addition to the non-uniform light-emitting characteristics of each LED, each light-emitting area will also be affected by the non-uniform driving characteristics of each light-emitting diode driving element 1062_d1-1062_dn, thus affecting the brightness uniformity. To address this problem, the compensation and correction unit 108 of the light-emitting device 10 in this embodiment of the invention may further include a second compensation and correction module 1084, which is used to store driving adjustment data of the non-uniform characteristics of the light-emitting diode driving elements 1062_d1-1062_dn of the light-emitting diode module 1062. In this way, the conversion unit 104 of the embodiment of the present invention can use the second compensation correction module 1084 to adjust the current value for the light-emitting diode driving elements 1062_d1-1062_dn to avoid uneven brightness in the light-emitting area.

[0024] In this embodiment, the conversion unit 104 can be a microcontroller unit (MCU), and the compensation and correction unit 108 can be memory. The luminous adjustment data of the non-uniform characteristics of the LED is stored in the first compensation and correction module 1082, and the driving adjustment data of the non-uniform characteristics of the LED driving elements 1062_d1-1062_dn is stored in the second compensation and correction module 1084. However, the invention is not limited to this. For example, the compensation and correction unit 108 can also be a processor, causing the first compensation and correction module 1082 to calculate and obtain the luminous adjustment data of the non-uniform characteristics of the LED using an approximate conversion function, and causing the second compensation and correction module 1084 to calculate and obtain the driving adjustment data of the non-uniform characteristics of the LED driving elements 1062_d1-1062_dn using an approximate conversion function. The approximate conversion function can be a linear function, a nonlinear function, or a polynomial function, such as a cubic function. In other embodiments, the compensation and correction unit 108 can also be embedded in the conversion unit 104 to use the central processing unit core of the conversion unit 104 to calculate the approximate conversion function without having to configure other processors as compensation and correction units 108, thereby reducing configuration costs.

[0025] In another embodiment, please refer to Figure 3 , Figure 3 This is a schematic diagram of a display device 30 according to an embodiment of the present invention. The display device 30 may be a monitor, including a driving unit 302, a conversion unit 304, a backlight module 306, a compensation and correction unit 308, and a liquid crystal display panel 310. The driving unit 302 is coupled to the liquid crystal display panel 310 and is used to output an image signal IMS and a backlight driving signal BLDS according to the image source IS. The image source IS is generated by the display device 30 itself and is not input from an external source. Therefore, the display device 30 is an independent display device, which typically refers to liquid crystal products such as mobile phones, tablets, laptops, and automotive displays.

[0026] The image signal IMS is used to drive the liquid crystal display panel 310 to generate corresponding images. The backlight module 306 includes a light-emitting diode module 3062, which may include multiple light-emitting areas corresponding to the display area of ​​the liquid crystal display panel 310. That is, the number of multiple light-emitting areas in a single unit area is greater than the number of multiple image areas. The backlight driving signal BLDS output by the driving unit 302 can be used to drive the light-emitting areas corresponding to the light-emitting diode module 3062 of the backlight module 306. A conversion unit 304 is coupled to the driving unit 302 and the backlight module 306. A compensation and correction unit 308 is coupled to the conversion unit 304. The conversion unit 304 uses the compensation and correction unit 308 to convert the backlight driving signal BLDS into multiple modulated backlight driving signals M_BLDS to drive each light-emitting area corresponding to the light-emitting diode module 3062. The compensation and correction unit 308 adjusts the backlight driving signal BLDS used to drive the light-emitting diode module 1062 according to the optical, circuit, and component characteristics of the display device 30, thereby generating a modulated backlight driving signal M_BLDS. In this way, since the output current of the light-emitting area corresponding to each display area will be slightly different due to the correction effect of the compensation and correction unit 308 (that is, the modulated backlight driving signal M_BLDS is different from the backlight driving signal BLDS), each display area can obtain uniform brightness characteristics. Therefore, the display device 30 of this embodiment can improve the problem of uneven brightness in the display area of ​​the prior art.

[0027] In one embodiment, such as Figure 3A As shown, the display device 30 may include a timing controller T-con, and the timing controller T-con may include a drive unit 302, while the conversion unit 304 and the compensation and correction unit 308 are independent of the timing controller. Therefore, the conversion unit 304 and the compensation and correction unit 308 can be applied to timing controllers in different product models, thereby reducing development costs; or, as Figure 3BAs shown, the timing controller of the display device 30 may include a driving unit 302, a conversion unit 304 and a compensation and correction unit 308. That is, the conversion unit 304 and the compensation and correction unit 308 are embedded in the timing controller as an integrated IC module, so that production costs can be reduced by economies of scale during mass production.

[0028] Furthermore, the compensation and correction unit 308 in the embodiments of the present invention may have a first compensation and correction module 3082, which is used to store the light emission adjustment data of the non-uniform characteristics of the light emission diodes (LEDs) of the light emission diode module 3062, so that the conversion unit 304 uses the first compensation and correction module 3082 of the compensation and correction unit 308 to convert the backlight driving signal BLDS into a plurality of modulated backlight driving signals M_BLDS, and drives the light emission diode module 3062 with the modulated backlight driving signals M_BLDS.

[0029] Specifically, because each LED in the LED module 3062 has differences in manufacturing process, hardware components, or circuit layout, the characteristics of each LED deviate. Therefore, when each LED in the LED module 3062 is driven with the same current, the brightness produced by each LED may be different, thus affecting the brightness uniformity of the backlight module 306. In one embodiment, the conversion unit 304 of this invention can use the first compensation correction module 3082 to adjust the current value of the LED to avoid uneven brightness in the light-emitting area.

[0030] In addition, such as Figure 4 As shown, the LED module 3062 may further include multiple LED driving elements 3062_d1-3062_dn to drive LEDs located in corresponding light-emitting areas. In this case, since the LED driving elements 3062_d1-3062_dn may also experience characteristic deviations due to differences in manufacturing process, hardware components, or circuit layout, the compensation and correction unit 308 of the light-emitting device 10 in this embodiment of the invention may further include a second compensation and correction module 3084, which is used to store driving adjustment data of the non-uniform characteristics of the LED driving elements 3062_d1-3062_dn in the LED module 3062. In this way, the conversion unit 304 in this embodiment of the invention can use the second compensation and correction module 3084 to adjust the current value for the LED driving elements 3062_d1-3062_dn to avoid uneven brightness in the light-emitting areas.

[0031] In another embodiment, please refer to Figure 5 , Figure 5This is a schematic diagram of a display system 50 according to an embodiment of the present invention. The display system 50 includes a display device DP and an image source generating device ISG. The display device DP may be a liquid crystal display, which includes a driving unit 502, a backlight module 504, and a liquid crystal display panel 506. The image source generating device ISG includes an image processor 508, a conversion unit 510, and a compensation and correction unit 512. For example, the image source generating device ISG may be disposed on a host computer or a device with computing processing functions, which is different from... Figure 3 The compensation and correction unit 308 of the display device 30 is built into the display device 30. Therefore, the image source is input to the display device DP via an external source, that is, it is generated by the image source generating device ISG and input to the display device DP. The display device DP is a connection-type display device, which usually refers to LCD products such as computer screens or televisions equipped with external terminals.

[0032] In one embodiment, the display device DP may include a timing controller T-con, and the timing controller may include a drive unit 502, while the conversion unit 510 and the compensation and correction unit 512 are independent of the timing controller (e.g., Figure 5A As shown, the conversion unit 510 and the compensation and correction unit 512 both perform their functions in the image source generation device ISG. Therefore, a high-speed computing computer device can be used as the image source generation device ISG, such as a graphics processing unit (GPU) to perform the compensation and correction functions of the conversion unit 510 and the compensation and correction unit 512. In this way, the timing controller of the display device DP does not need to be redesigned and developed. Therefore, the image source generation device ISG can be applied in different types of display devices DP to reduce the development cost of the timing controller.

[0033] The image processor 508 of the image source generation device ISG is used to output the image signal IMS and the backlight drive signal BLDS to the conversion unit 510 according to the image source IS. The compensation and correction unit 512 is coupled to the conversion unit 510, so that the conversion unit 510 can use the compensation and correction unit 512 to convert the backlight drive signal BLDS into multiple modulated backlight drive signals M_BLDS.

[0034] The driving unit 502 of the display device DP is coupled to the liquid crystal display panel 506 and the backlight module 504, and is used to send the image signal IMS and the modulation backlight drive signal M_BLDS to the liquid crystal display panel 506 and the backlight module 504, respectively. That is, the driving unit 502 receives the image signal IMS and the modulation backlight drive signal M_BLDS from the conversion unit 510, and forwards the image signal IMS and the modulation backlight drive signal M_BLDS to the backlight module 504 and the liquid crystal display panel 506. Therefore, the image signal IMS can be used to drive the liquid crystal display panel 506 to generate a corresponding image, and the modulation backlight drive signal M_BLDS can be used to drive the light-emitting area corresponding to the light-emitting diode module 5042. The backlight module 504 includes a light-emitting diode module 5042, wherein the light-emitting diode module 5042 includes multiple light-emitting areas corresponding to the display area of ​​the liquid crystal display panel 506. Therefore, the backlight driving signal M_BLDS output by the driving unit 502 can be used to drive the light-emitting areas corresponding to the light-emitting diode module 5042 of the backlight module 504.

[0035] In the above embodiments, since the compensation and correction unit 512 of the present invention can adjust the backlight driving signal BLDS used to drive the light-emitting diode module 5042 according to the optical, circuit and component characteristics of the display system 50 to generate the modulated backlight driving signal M_BLDS, the display system 50 of the present invention can improve the problem of uneven brightness in the display area of ​​the prior art.

[0036] Furthermore, the compensation and correction unit 512 of the image source generation device ISG of the display system 50 may have a first compensation and correction module 5122, which is used to store the light emission adjustment data of the non-uniform characteristics of the light emission diodes (LEDs) of the light emission diode module 5042, so that the conversion unit 510 can use the first compensation and correction module 5122 of the compensation and correction unit 512 to convert the backlight drive signal BLDS into multiple modulated backlight drive signals M_BLDS and transmit them to the drive unit 502, thereby using the modulated backlight drive signals M_BLDS to drive the light emission diode module 5042.

[0037] Specifically, because each LED in the LED module 5042 has differences in manufacturing process, hardware components, or circuit layout, the characteristics of each LED deviate. Therefore, when each LED in the LED module 5042 is driven with the same current, the brightness produced by each LED may be different, affecting the brightness uniformity of the backlight module 504. In one embodiment, the conversion unit 510 of this invention can use the first compensation correction module 5122 to adjust the current value of the LED to avoid uneven brightness in the light-emitting area.

[0038] In addition, such as Figure 6 As shown, the LED module 5042 may further include multiple LED driving elements 5042_d1-5042_dn, which are used to drive LEDs located in corresponding light-emitting areas. In this case, since the LED driving elements 5042_d1-5042_dn may also experience characteristic deviations due to differences in manufacturing process, hardware components, or circuit layout, the compensation and correction unit 512 of the light-emitting device 50 in this embodiment of the invention may further include a second compensation and correction module 5124, which is used to access drive adjustment data for the non-uniform characteristics of the LED driving elements 5042_d1-5042_dn in the LED module 5042. In this way, the conversion unit 304 in this embodiment of the invention can use the second compensation and correction module 5124 to adjust the current value for the LED driving elements 5042_d1-5042_dn to avoid uneven brightness in the light-emitting areas.

[0039] In summary, this invention provides a driving method for a light source module, a light-emitting device, a display device, and a display system. Because the output current of each light-emitting area varies slightly due to the correction effect of the compensation and correction unit, each light-emitting area can achieve uniform brightness characteristics. This invention improves upon the problem of uneven brightness in each light-emitting area under the same current in prior art, thus preventing uneven brightness in the light-emitting areas. By then applying existing local dimming technology, it can be ensured that each light-emitting area after local dimming achieves the desired localized brightness. More specifically, the invention utilizes a first compensation and correction module and a second compensation and correction module of the compensation and correction unit to obtain light-emitting adjustment data for the uneven characteristics of the light-emitting diode (LED) and driving adjustment data for the uneven characteristics of the LED driving element, correcting and adjusting the current values ​​of the LED and the LED driving element to prevent uneven brightness in the light-emitting areas.

[0040] The above description is only a preferred embodiment of the present invention. All equivalent changes and modifications made within the scope of the claims of the present invention should be included in the scope of the present invention.

[0041] [List of Labels in the Attached Image]

[0042] 10: Light-emitting device

[0043] 102, 302, 502: Drive units

[0044] 104,304,510: Conversion Units

[0045] 106: Light Source Module

[0046] 1062, 3062, 5042: Light Emitting Diode Module

[0047] 1062_d1-1062_dn, 3062_d1-3062_dn, 5042_d1-5042_dn: LED driver

[0048] Moving components

[0049] 108,308,512: Compensation and Correction Units

[0050] 1082,3082,5122: First compensation and correction module

[0051] 1084,3084,5124: Second compensation and correction module

[0052] 30: Display device

[0053] 306, 504: Backlight module

[0054] 310,506: Liquid crystal display panel

[0055] 50: Display System

[0056] 508: Image Processor

[0057] BLDS: Backlight Driver Signal

[0058] M_BLDS: Modulation backlight drive signal

[0059] M_LDS: Modulated light source drive signal

[0060] DP: Display device

[0061] IMS: Image Signal

[0062] IS: Image Source

[0063] ISG: Image Source Generation Device

[0064] LDS: Light source drive signal

[0065] LED: Light Emitting Diode

[0066] LZ: Illuminated area

[0067] S: Source

[0068] T-con: Timing Controller

[0069] UA: Unit area.

Claims

1. A driving method for a light source module, used in a light-emitting device, the light-emitting device comprising a driving unit, a conversion unit, a compensation and correction unit, and the light source module, wherein the driving unit outputs a light source driving signal according to a source, wherein... The conversion unit is coupled to the driving unit and the light source module, and the light source driving signal is used to drive multiple light-emitting areas of the light-emitting diode module corresponding to the light source module, wherein the driving method of the light source module includes: The conversion unit uses the compensation and correction unit to convert the light source driving signal into multiple modulated light source driving signals to drive each light-emitting area corresponding to the light-emitting diode module, wherein The light-emitting diode module has multiple light-emitting diodes, and the compensation and correction unit has a first compensation and correction module, which is used to store light emission adjustment data of the non-uniform characteristics of the multiple light-emitting diodes of the light-emitting diode module. The LED module also has multiple LED driving elements, which are used to drive LEDs located in corresponding light-emitting areas. The compensation and correction unit further has a second compensation and correction module, which is used to store driving adjustment data of the non-uniform characteristics of the multiple LED driving elements of the LED module. The first compensation and correction module of the compensation and correction unit uses the calculation of an approximate conversion function to obtain the light emission adjustment data of the non-uniform characteristics of the plurality of light-emitting diodes, and the second compensation and correction module uses the calculation of an approximate conversion function to obtain the drive adjustment data of the non-uniform characteristics of the driving elements of the plurality of light-emitting diodes. The conversion unit uses the first compensation correction module and the second compensation correction module of the compensation correction unit to convert the light source driving signal into the plurality of modulated light source driving signals, thereby adjusting and correcting the output current for the plurality of light-emitting diodes and the plurality of light-emitting diode driving elements, so as to use the output current to drive the corresponding light-emitting area.

2. The driving method for the light source module according to claim 1, wherein, The light-emitting device is a display device, which includes the driving unit, the conversion unit, the compensation and correction unit, the light source module, and the liquid crystal display panel. The light source module is a backlight module, the source is an image source, and the light source driving signal is a backlight driving signal. The driving unit outputs an image signal and the backlight driving signal according to the image source. The image signal is used to drive the liquid crystal display panel to generate a corresponding image, and the backlight driving signal is used to drive the plurality of light-emitting areas of the light-emitting diode module corresponding to the backlight module.

3. A light-emitting device, comprising: The drive unit is used to output a light source drive signal according to the source. A light source module includes a light-emitting diode module, and the light source driving signal is used to drive a plurality of light-emitting areas corresponding to the light-emitting diode module of the light source module; A conversion unit, which is coupled to the driving unit and the light source module; as well as A compensation and correction unit, coupled to the conversion unit, converts the light source driving signal into multiple modulated light source driving signals to drive each light-emitting area corresponding to the LED module. The light-emitting diode module has multiple light-emitting diodes, and the compensation and correction unit has a first compensation and correction module, which is used to store light emission adjustment data of the non-uniform characteristics of the multiple light-emitting diodes of the light-emitting diode module. The LED module also has multiple LED driving elements, which are used to drive LEDs located in corresponding light-emitting areas. The compensation and correction unit further has a second compensation and correction module, which is used to store driving adjustment data of the non-uniform characteristics of the multiple LED driving elements of the LED module. The first compensation and correction module of the compensation and correction unit uses the calculation of an approximate conversion function to obtain the light emission adjustment data of the non-uniform characteristics of the plurality of light-emitting diodes, and the second compensation and correction module uses the calculation of an approximate conversion function to obtain the drive adjustment data of the non-uniform characteristics of the driving elements of the plurality of light-emitting diodes. The conversion unit uses the first compensation correction module and the second compensation correction module of the compensation correction unit to convert the light source driving signal into the plurality of modulated light source driving signals, thereby adjusting and correcting the output current for the plurality of light-emitting diodes and the plurality of light-emitting diode driving elements, so as to use the output current to drive the corresponding light-emitting area.

4. A display device, comprising: LCD display panel; A driving unit is coupled to the liquid crystal display panel and is used to output image signals and backlight driving signals according to the image source, wherein the image signals are used to drive the liquid crystal display panel to generate corresponding images; A backlight module includes a light-emitting diode module, and the backlight driving signal is used to drive a plurality of light-emitting areas corresponding to the light-emitting diode module of the backlight module; A conversion unit, which is coupled to the driving unit and the backlight module; as well as A compensation and correction unit, coupled to the conversion unit, uses the compensation and correction unit to convert the backlight driving signal into multiple modulated backlight driving signals to drive each light-emitting area corresponding to the light-emitting diode module, wherein... The light-emitting diode module has multiple light-emitting diodes, and the compensation and correction unit has a first compensation and correction module, which is used to store light emission adjustment data of the non-uniform characteristics of the multiple light-emitting diodes of the light-emitting diode module. The LED module also has multiple LED driving elements, which are used to drive LEDs located in corresponding light-emitting areas. The compensation and correction unit further has a second compensation and correction module, which is used to store driving adjustment data of the non-uniform characteristics of the multiple LED driving elements of the LED module. The first compensation and correction module of the compensation and correction unit uses the calculation of an approximate conversion function to obtain the light emission adjustment data of the non-uniform characteristics of the plurality of light-emitting diodes, and the second compensation and correction module uses the calculation of an approximate conversion function to obtain the drive adjustment data of the non-uniform characteristics of the driving elements of the plurality of light-emitting diodes. The conversion unit uses the first compensation correction module and the second compensation correction module of the compensation correction unit to convert the backlight driving signal into the plurality of modulated backlight driving signals, thereby adjusting and correcting the output current for the plurality of light-emitting diodes and the plurality of light-emitting diode driving elements, so as to use the output current to drive the corresponding light-emitting area.

5. The display device according to claim 4, wherein, The timing controller of the display device includes the driving unit, and the conversion unit and the compensation and correction unit are independent of the timing controller.

6. The display device according to claim 4, wherein, The timing controller of the display device includes the driving unit, the conversion unit, and the compensation and correction unit.

7. A display system comprising a display device and an image source generating device, wherein the display device includes a driving unit, a backlight module, and a liquid crystal display panel, wherein... The backlight module includes a light-emitting diode module, and the image source generating device includes an image processor, a conversion unit, and a compensation and correction unit, wherein: The image processor is used to output image signals and backlight drive signals according to the image source; The conversion unit is coupled to the image processor; The compensation and correction unit is coupled to the conversion unit, and the conversion unit uses the compensation and correction unit to convert the backlight driving signal into multiple modulated backlight driving signals. The driving unit is coupled to the liquid crystal display panel and the backlight module, and is used to send the image signal and the plurality of modulated backlight driving signals to the liquid crystal display panel and the backlight module respectively. The image signal is used to drive the liquid crystal display panel to generate a corresponding image, and the plurality of modulated backlight driving signals are used to drive multiple light-emitting areas corresponding to the light-emitting diode module. The light-emitting diode module has multiple light-emitting diodes, and the compensation and correction unit has a first compensation and correction module, which is used to store light emission adjustment data of the non-uniform characteristics of the multiple light-emitting diodes of the light-emitting diode module. The LED module also has multiple LED driving elements, which are used to drive LEDs located in corresponding light-emitting areas. The compensation and correction unit further has a second compensation and correction module, which is used to store driving adjustment data of the non-uniform characteristics of the multiple LED driving elements of the LED module. The first compensation and correction module of the compensation and correction unit uses the calculation of an approximate conversion function to obtain the light emission adjustment data of the non-uniform characteristics of the plurality of light-emitting diodes, and the second compensation and correction module uses the calculation of an approximate conversion function to obtain the drive adjustment data of the non-uniform characteristics of the driving elements of the plurality of light-emitting diodes. The conversion unit uses the first compensation correction module and the second compensation correction module of the compensation correction unit to convert the backlight driving signal into the plurality of modulated backlight driving signals, thereby adjusting and correcting the output current for the plurality of light-emitting diodes and the plurality of light-emitting diode driving elements, so as to use the output current to drive the corresponding light-emitting area.

8. The display system according to claim 7, wherein, The timing controller of the display device includes the driving unit, and the conversion unit and the compensation and correction unit are independent of the timing controller.

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