Display device

Abstract

This application relates to a display device, including a display panel, a backlight module, and a first control unit. The display panel is configured to display an image; the backlight module is disposed on the light-incident side of the display panel and provides a light source for the display panel; the backlight module includes a first region, a second region, and a third region arranged sequentially along a first direction, each region including at least one backlight partition, and the backlight partition including at least one row of light-emitting devices; the light-emitting devices include a packaged bracket and at least three light-emitting chips arranged along the first direction, the at least three light-emitting chips being disposed within the packaged bracket, the at least three light-emitting chips being configured to emit beams of different colors to mix into white light, the first light-emitting chip of the at least three light-emitting chips being disposed on a first inner side of the packaged bracket, and the second light-emitting chip of the at least three light-emitting chips being disposed on a second inner side of the packaged bracket; the direction from the first inner side to the second inner side is parallel to the first direction; the first control unit is configured to control the light-emitting state of the backlight module.

Description

Technical Field

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

[0002] With the rapid development of display technology, display devices are being used more and more widely. LCD screens, due to their advantages such as low power consumption, small size, and low radiation, have become the mainstream display screen in display devices.

[0003] LCD panels are non-self-emissive panels and require a backlight module to function. The backlight module provides uniform light, and the pixels on the LCD panel control the transmission and blocking of light to form an image.

[0004] In backlight modules, a backplane typically uses LED (Light Emitting Diode) chip packages with surface-mount LED chips. However, when a backlight module provides backlighting, the display device suffers from uneven brightness. Summary of the Invention

[0005] Therefore, it is necessary to provide a display device to improve the problem of uneven brightness in the display device when the backlight module provides backlight.

[0006] In a first aspect, this application provides a display device, comprising:

[0007] The display panel is configured to display images;

[0008] A backlight module, located on the light-incident side of the display panel, is configured to provide a light source for the display panel;

[0009] The backlight module includes:

[0010] A first region, a second region, and a third region are arranged sequentially along a first direction, each region including at least one backlight partition, and the backlight partition including at least one row of light-emitting devices;

[0011] The light-emitting device includes:

[0012] Packaging bracket;

[0013] At least three light-emitting chips are arranged along the first direction, the at least three light-emitting chips are disposed within the packaging bracket, the at least three light-emitting chips are configured to emit light beams of different colors to mix into white light, the first light-emitting chip of the at least three light-emitting chips is disposed on the first inner side of the packaging bracket, the second light-emitting chip of the at least three light-emitting chips is disposed on the second inner side of the packaging bracket; the direction from the first inner side to the second inner side is parallel to the first direction;

[0014] The first control unit is configured to control the light emission state of the backlight module;

[0015] The first control unit determines the driving current of the target light-emitting chip based on the spatial filtering values ​​corresponding to the target light-emitting chips in the first region and the third region; the target light-emitting chip includes at least one of a first light-emitting chip and a second light-emitting chip.

[0016] The spatial filter value corresponding to the first light-emitting chip in the first region is greater than the spatial filter value corresponding to the first light-emitting chip in the third region; the spatial filter value corresponding to the second light-emitting chip in the third region is greater than the spatial filter value corresponding to the second light-emitting chip in the first region.

[0017] Beneficial effects: The first control unit determines the driving current of at least one of the first and second light-emitting chips based on the corresponding spatial filter value of at least one of the first and second light-emitting chips in the first and third regions. The spatial filter value of the first light-emitting chip in the first region is greater than that of the first light-emitting chip in the third region, and the spatial filter value of the second light-emitting chip in the third region is greater than that of the second light-emitting chip in the first region. This makes the luminous brightness of the first light-emitting chip in the first region greater than that of the first light-emitting chip in the third region, and the luminous brightness of the second light-emitting chip in the third region greater than that of the second light-emitting chip in the first region, thereby improving the uneven luminous brightness of the target light-emitting chips in the first, second, and third regions.

[0018] In one embodiment,

[0019] The first control unit further determines the driving current of the corresponding light-emitting chip based on the spatial filtering value of each light-emitting chip in the first region, the second region, and the third region, so that each light-emitting chip in the first region, the second region, and the third region emits a light beam;

[0020] Wherein, the spatial filter value corresponding to the first light-emitting chip in the first region is greater than the spatial filter value corresponding to the first light-emitting chip in the third region and the spatial filter value corresponding to the second light-emitting chip in the first region, and the spatial filter value corresponding to the second light-emitting chip in the third region is greater than the spatial filter value corresponding to the second light-emitting chip in the first region and the spatial filter value corresponding to the first light-emitting chip in the third region.

[0021] Beneficial effects: In the first region, the spatial filter value corresponding to the first light-emitting chip is greater than that corresponding to the second light-emitting chip, resulting in a higher luminous intensity of the first light-emitting chip in the first region compared to the second. This compensates for the obstruction of the light beam emitted by the first light-emitting chip from the first inner side of the encapsulation bracket in the first region, ultimately making the luminous intensity of the first light-emitting chip in the first region comparable to that of the second light-emitting chip, thus improving the light mixing effect and addressing the issue of the first region exhibiting a color cast similar to the light beam emitted by the second light-emitting chip. Similarly, in the third region, the spatial filter value corresponding to the second light-emitting chip is greater than that corresponding to the first light-emitting chip, resulting in a higher luminous intensity of the second light-emitting chip in the third region. This compensates for the obstruction of the light beam emitted by the second light-emitting chip from the second inner side of the encapsulation bracket in the third region, ultimately making the luminous intensity of the second light-emitting chip in the third region comparable to that of the first light-emitting chip, thus improving the light mixing effect and addressing the issue of the third region exhibiting a color cast similar to the light beam emitted by the first light-emitting chip. The spatial filter value corresponding to the first light-emitting chip in the first region is greater than that corresponding to the first light-emitting chip in the third region, and the spatial filter value corresponding to the second light-emitting chip in the third region is greater than that corresponding to the second light-emitting chip in the first region. This makes the brightness of the light mixed by the first and second light-emitting chips in the first region comparable to that of the first and second light-emitting chips in the third region, thus ensuring the overall light mixing effect and brightness uniformity of the first, second, and third regions.

[0022] In one embodiment, the spatial filter values ​​corresponding to the third light-emitting chip in the first region and the third region are equal;

[0023] The third light-emitting chip is any light-emitting chip other than the first and second light-emitting chips among the at least three light-emitting chips.

[0024] Beneficial effects: The spatial filter values ​​corresponding to the third light-emitting chips in the first and third regions are equal, which can ensure that the brightness of the light beam emitted by the third light-emitting chips in the first and third regions is equal, improve the light mixing effect of the third light-emitting chips in the first and third regions with the first and second light-emitting chips in the corresponding regions, and ensure the brightness uniformity of the white light after mixing in the first and third regions.

[0025] In one embodiment, the second region includes a first sub-region, a second sub-region, and a third sub-region arranged sequentially along a second direction; the second direction is perpendicular to the first direction.

[0026] The spatial filter values ​​corresponding to the first light-emitting chips in the first sub-region and the third sub-region are equal, and less than the spatial filter value corresponding to the first light-emitting chip in the first region, and greater than the spatial filter value corresponding to the first light-emitting chip in the third region; and / or,

[0027] The spatial filter values ​​corresponding to the second light-emitting chip in the first sub-region and the third sub-region are equal, and are greater than the spatial filter value corresponding to the second light-emitting chip in the first region and less than the spatial filter value corresponding to the second light-emitting chip in the third region; and / or,

[0028] The spatial filter values ​​corresponding to the at least three light-emitting chips in the first sub-region and the third sub-region are equal.

[0029] Beneficial effects: It can ensure the light mixing effect and brightness uniformity between the first sub-region and the third sub-region and the first region and the third region respectively, and ensure the brightness uniformity among at least three light-emitting chips in the first sub-region and the third sub-region.

[0030] In one embodiment, the spatial filter values ​​corresponding to the at least three light-emitting chips in the second sub-region are all equal.

[0031] Beneficial effect: The spatial filter values ​​corresponding to at least three light-emitting chips in the second sub-region are equal, so that the light emission brightness of at least three light-emitting chips in the second sub-region is equal, ensuring the light mixing effect of the light beams emitted by at least three light-emitting chips in the second sub-region.

[0032] In one embodiment, the spatial filter values ​​corresponding to the at least three light-emitting chips in the second sub-region are respectively greater than the spatial filter values ​​corresponding to any light-emitting chip in any region other than the second sub-region.

[0033] Beneficial effect: The spatial filter values ​​corresponding to at least three light-emitting chips in the second sub-region are greater than the spatial filter values ​​corresponding to any light-emitting chip in any region other than the second sub-region. The spatial filter values ​​corresponding to at least three light-emitting chips in the second sub-region can be used as a reference to set the spatial filter values ​​of the same light-emitting chips in the first sub-region, the third sub-region, the first region, and the third region respectively, which can effectively improve the halo problem.

[0034] In one embodiment, the spatial filter value corresponding to the third light-emitting chip in the first sub-region and the third sub-region is equal to the spatial filter value corresponding to the third light-emitting chip in the first region and the third region;

[0035] The third light-emitting chip is any light-emitting chip other than the first and second light-emitting chips among the at least three light-emitting chips.

[0036] Beneficial effects: The spatial filter values ​​corresponding to the third light-emitting chips in the first and third sub-regions are equal to those in the first and third sub-regions, and the driving currents corresponding to the third light-emitting chips in the first and third sub-regions are equal to those in the first and third sub-regions, so that the luminous brightness of the third light-emitting chips in the first and third sub-regions is equal to that in the first and third sub-regions, thereby ensuring the uniformity of luminous brightness of the third light-emitting chips in the first and third sub-regions and the first and second sub-regions.

[0037] In one embodiment, the difference between the sum of the spatial filter values ​​corresponding to the same light-emitting chips in the first region, the second region, and the third region and 256 is within a preset range.

[0038] The same light-emitting chip refers to the light-emitting chip that emits the same color light beam in the first region, the second region, and the third region.

[0039] Beneficial effect: The difference between the sum of the spatial filter values ​​corresponding to the same light-emitting chips in the first, second, and third regions and 256 is within the preset range, which can ensure that the light emission brightness of the same light-emitting chips in the first, second, and third regions meets the preset light emission requirements and ensures the light emission effect.

[0040] In one embodiment, the light-emitting device includes three light-emitting chips packaged in the packaging bracket and arranged along the first direction;

[0041] The first light-emitting chip is configured to emit a blue light beam; the second light-emitting chip is configured to emit a red light beam; and the third light-emitting chip is configured to emit a green light beam.

[0042] Beneficial effects: The light-emitting chips encapsulated in the packaging bracket of the light-emitting device emit blue light beams, red light beams, and green light beams respectively, achieving a wider color gamut coverage and more accurate color reproduction.

[0043] Secondly, this application also provides a display device, comprising:

[0044] The display panel is configured to display images;

[0045] A backlight module, located on the light-incident side of the display panel, is configured to provide a light source for the display panel;

[0046] The backlight module includes:

[0047] A first region, a second region, and a third region are arranged sequentially along a first direction, each region including at least one backlight partition, and the backlight partition including at least one row of light-emitting devices;

[0048] The light-emitting device includes:

[0049] Packaging bracket;

[0050] At least three light-emitting chips are arranged along the first direction, the at least three light-emitting chips are disposed within the packaging bracket, the at least three light-emitting chips are configured to emit light beams of different colors to mix into white light, the first light-emitting chip of the at least three light-emitting chips is disposed on the first inner side of the packaging bracket, the second light-emitting chip of the at least three light-emitting chips is disposed on the second inner side of the packaging bracket; the direction from the first inner side to the second inner side is parallel to the first direction;

[0051] The second control unit is configured to control each light-emitting chip in the second region to emit a light beam; and,

[0052] The first light-emitting chip in the first region and / or the second light-emitting chip in the third region are controlled to emit light beams.

[0053] Beneficial effects: The second control unit controls each light-emitting chip in the second region to emit a light beam; and controls at least one of the first light-emitting chip in the first region and the second light-emitting chip in the third region to emit a light beam, so that the light beam emitted by at least one of the first light-emitting chip in the first region and the second light-emitting chip in the third region can supplement the light in the second region, thereby improving the color distortion problem in the second region caused by the uneven brightness of the first light-emitting chip and / or the second light-emitting chip in the second region. Attached Figure Description

[0054] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0055] Figure 1 This is a plan view of the display substrate of the display panel in an unfolded state according to an embodiment of this application;

[0056] Figure 2 This is a schematic diagram showing the arrangement of the first, second, and third regions of the backlight module in one embodiment of this application;

[0057] Figure 3 This is a cross-sectional schematic diagram of a light-emitting device in one embodiment of this application;

[0058] Figure 4 This is a schematic diagram showing the spatial filter value distribution of the first light-emitting chip in the first, second, and third regions of an embodiment of this application;

[0059] Figure 5 This is a schematic diagram showing the spatial filter value distribution of the third light-emitting chip in the first, second, and third regions of an embodiment of this application;

[0060] Figure 6 This is a schematic diagram showing the spatial filter value distribution of the second light-emitting chip in the first, second, and third regions of an embodiment of this application;

[0061] Figure 7 This is a schematic diagram showing the arrangement of light-emitting devices in the first, second, and third regions of an embodiment of this application.

[0062] Explanation of reference numerals in the attached drawings: 10-display panel, 20-backlight module, 210-first area, 220-second area, 221-first sub-area, 222-second sub-area, 223-third sub-area, 230-third area, 2010-backlight zone, 2011-light-emitting device, 111-packaging bracket, L1-first light-emitting chip, L2-second light-emitting chip, L3-third light-emitting chip. Detailed Implementation

[0063] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings, which illustrate embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this application will be thorough and complete.

[0064] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0065] It is understood that the terms "first," "second," etc., used herein may be used to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish one element from another. For example, without departing from the scope of this application, a first resistor may be referred to as a second resistor, and similarly, a second resistor may be referred to as a first resistor. Both the first resistor and the second resistor are resistors, but they are not the same resistor.

[0066] It is understood that the term "connection" in the following embodiments should be understood as "electrical connection," "communication connection," etc., if the connected circuits, modules, units, etc., have electrical signal or data transmission with each other.

[0067] It is understandable that "at least one" refers to one or more, and "multiple" refers to two or more. "At least a part of an element" refers to part or all of an element.

[0068] When used herein, the singular forms of “a,” “an,” and “the” may also include the plural forms unless the context clearly indicates otherwise. It should also be understood that terms such as “comprising / including” or “having” specify the presence of the stated features, wholes, steps, operations, components, parts, or combinations thereof, but do not preclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof. Meanwhile, the term “and / or,” as used in this specification, includes any and all combinations of the associated listed items.

[0069] In one embodiment, a display device is provided. The display device can be a liquid crystal display (LCD), a liquid crystal monitor, an instrument panel, or other display products, or a mobile terminal product such as a smartphone or tablet computer. In a specific application scenario, the display device can be an LCD television.

[0070] like Figure 1 As shown, attached Figure 1 A cross-sectional structural schematic diagram of the display device in this embodiment is shown. The display device in this embodiment includes a display panel 10, which is configured to display an image.

[0071] The display panel 10 may be provided with multiple liquid crystal units arranged in an array, and the light transmittance is controlled by each liquid crystal unit to achieve image display.

[0072] The display device may further include a backlight module 20, which is located on the light-incident side of the display panel 10 and configured to provide a light source for the display panel 10. The backlight module 20 can emit light uniformly across the entire light-emitting surface, providing uniform light to the light-incident side of the display panel 10, so that the light transmitted through each liquid crystal cell forms a uniform display image.

[0073] The backlight module 20 in this embodiment may include a first region 210, a second region 220, and a third region 230 arranged sequentially along a first direction. Each region may include at least one backlight partition 2010. The backlight partition 2010 may include at least one row of light-emitting devices.

[0074] Among them, multiple backlight zones 2010 in the same area can be arranged along a first direction and / or a second direction.

[0075] The number of light-emitting devices 2011 in each column can be at least one.

[0076] For example, see Appendix Figure 2 , attached Figure 2 A schematic diagram showing the arrangement of the first region 210, the second region 220, and the third region 230 of the backlight module 20 in this embodiment is provided. (Attached) Figure 2 The illustration is based on the example where the first region 210, the second region 220, and the third region 230 each include three backlight zones 2010. In other embodiments, the number of backlight zones 2010 in the first region 210, the second region 220, and the third region 230 may also be different, and is not limited to this.

[0077] The light-emitting device 2011 in this embodiment may include a packaging bracket 111.

[0078] The light-emitting device 2011 may include at least three light-emitting chips arranged along a first direction, and the at least three light-emitting chips are disposed within the package holder 111.

[0079] At least three light-emitting chips are configured to emit beams of different colors to mix the light into white light. The first light-emitting chip L1 of the at least three light-emitting chips is disposed on the first inner side of the packaging bracket 111, and the second light-emitting chip L2 of the at least three light-emitting chips is disposed on the second inner side of the packaging bracket 111. The direction from the first inner side to the second inner side is parallel to the first direction.

[0080] like Figure 3 As shown, attached Figure 3 A cross-sectional schematic diagram of the light-emitting device 2011 in this embodiment is shown. (The diagram is accompanied by...) Figure 3 The following is an example of a light-emitting device 2011 with three light-emitting chips. The chip closest to the first inner side of the packaging bracket 111 can be the first light-emitting chip L1, the chip closest to the second inner side of the packaging bracket 111 can be the second light-emitting chip L2, and the chip located in the middle of the packaging bracket 111 can be the third light-emitting chip L3.

[0081] The first light-emitting chip L1, the second light-emitting chip L2, and the third light-emitting chip L3 are configured to emit light beams of different colors. For example, the first light-emitting chip L1 can emit a blue light beam, the second light-emitting chip L2 can emit a red light beam, and the third light-emitting chip L3 can emit a green light beam. Alternatively, the first light-emitting chip L1 can also emit a red light beam, the second light-emitting chip L2 can also emit a blue light beam, and the third light-emitting chip L3 can also emit a green light beam. The process is not limited to these specific examples; it is sufficient that the light beams emitted by each light-emitting chip can be mixed to produce white light.

[0082] It is understood that in other embodiments, the light-emitting device 2011 may also include three or more light-emitting chips, such as four. This application does not specifically limit the number of light-emitting chips in the light-emitting device 2011; it only needs to ensure that when the four light-emitting chips emit light beams, the emitted light beams can be mixed to form white light.

[0083] The display device may also include a first control unit. The first control unit may be configured to control the light emission state of the backlight module 20.

[0084] For example, the first control unit may be a System on Chip (SOC). An SOC is an integrated circuit that integrates a microprocessor, memory, input / output ports and other functional modules, and is capable of processing the received image data to generate brightness information for controlling the backlight module 20, wherein the brightness information may include the drive current of each backlight zone 2010.

[0085] The light emission state of the backlight module 20 can be understood as the light emission state of the light-emitting chips in each backlight partition 2010 of the backlight module 20. For example, it can be the state in which each light-emitting chip in at least one backlight partition 2010 emits a light beam and the state in which it does not emit a light beam.

[0086] The first control unit can determine the driving current of the target light-emitting chip based on the spatial filtering value corresponding to the target light-emitting chip in the first region 210 and the third region 230; the target light-emitting chip includes at least one of the first light-emitting chip L1 and the second light-emitting chip L2.

[0087] A larger spatial filter value results in a brighter beam emitted by the corresponding LED driven by the driving current. Conversely, a smaller spatial filter value results in a dimmer beam emitted by the corresponding LED driven by the driving current.

[0088] For example, the first control unit can determine the driving current of the first light-emitting chip L1 based on the spatial filter value corresponding to the first light-emitting chip L1 in the first region 210 and the second region 220.

[0089] In another example, the first control unit may also determine the driving current of the second light-emitting chip L2 based on the spatial filtering value corresponding to the second light-emitting chip L2 in the first region 210 and the second region 220.

[0090] As another example, the first control unit may also determine the driving current of the first light-emitting chip L1 based on the spatial filter value corresponding to the first light-emitting chip L1 in the first region 210 and the second region 220, and determine the driving current of the second light-emitting chip L2 based on the spatial filter value corresponding to the second light-emitting chip L2 in the first region 210 and the second region 220.

[0091] To increase the emission angle of the light-emitting device 2011, reduce the number of lamps, and lower costs, the light-emitting chip can be packaged using a packaging bracket 111. However, please refer to the appendix... Figure 3 It is known that because the first light-emitting chip L1 is close to the first inner side of the packaging bracket 111, and the packaging bracket 111 is further encapsulated with adhesive by dispensing, the fixed shape of the adhesive dispensing will obstruct the light beam emitted by the first light-emitting chip L1. Similarly, the second light-emitting chip L2 is close to the second inner side of the packaging bracket 111, and the fixed shape of the adhesive dispensing will also obstruct the light beam emitted by the second light-emitting chip L2. Therefore, in the related art, when the first light-emitting chip L1 and / or the second light-emitting chip L2 in the first region 210, the second region 220, and the third region 230 emit light beams, the light emission brightness on both sides of the first region 210, the second region 220, and the third region 230 in the first direction will not be uniform with the light emission brightness in the middle.

[0092] Assuming the spatial filter value corresponding to the first light-emitting chip L1 in the first region 210 is equal to the spatial filter value corresponding to the first light-emitting chip L1 in the third region 230, since the first light-emitting chip L1 is close to the first inner side of the packaging bracket 111, the light beam emitted by the first light-emitting chip L1 on the left edge of the first direction in the backlight area formed by the first region 210, the second region 220 and the third region 230 will be blocked by the packaging bracket 111. The luminous brightness of the first light-emitting chip L1 in the first region 210 will be less than that of the first light-emitting chip L1 in the third region 230, resulting in uneven luminous brightness of the first light-emitting chip L1 in the backlight area formed by the first region 210, the second region 220 and the third region 230. In this embodiment, the spatial filter value corresponding to the first light-emitting chip L1 in the first region 210 can be greater than the spatial filter value corresponding to the first light-emitting chip L1 in the third region 230. The driving current corresponding to the first light-emitting chip L1 in the first region 210 is greater than the driving current corresponding to the first light-emitting chip L1 in the third region 230. The luminous brightness of the first light-emitting chip L1 in the first region 210 is greater than the luminous brightness of the first light-emitting chip L1 in the third region 230. Therefore, the brightness loss caused by the light beam emitted by the first light-emitting chip L1 in the first region 210 being blocked by the encapsulation bracket 111 can be compensated, and the problem of uneven luminous brightness of the first light-emitting chip L1 in the first region 210, the second region 220 and the third region 230 can be improved.

[0093] Assuming the spatial filter value corresponding to the second light-emitting chip L2 in the first region 210 is equal to the spatial filter value corresponding to the second light-emitting chip L2 in the third region 230, since the second light-emitting chip L2 is close to the second inner side of the packaging bracket 111, the light beam emitted by the second light-emitting chip L2 on the right edge of the first direction in the backlight area formed by the first region 210, the second region 220 and the third region 230 will be blocked by the packaging bracket 111. The luminous brightness of the second light-emitting chip L2 in the third region 230 will be less than that of the second light-emitting chip L2 in the first region 210, resulting in uneven luminous brightness of the second light-emitting chip L2 in the backlight area formed by the first region 210, the second region 220 and the third region 230. In this embodiment, the spatial filter value corresponding to the second light-emitting chip L2 in the third region 230 is greater than the spatial filter value corresponding to the second light-emitting chip L2 in the first region 210, the driving current corresponding to the second light-emitting chip L2 in the third region 230 is greater than the driving current corresponding to the second light-emitting chip L2 in the first region 210, and the luminous brightness of the second light-emitting chip L2 in the third region 230 is greater than the luminous brightness of the second light-emitting chip L2 in the first region 210. Therefore, it can compensate for the brightness loss caused by the light beam emitted by the second light-emitting chip L2 in the third region 230 being blocked by the encapsulation bracket 111, and improve the problem of uneven luminous brightness of the second light-emitting chip L2 in the first region 210, the second region 220, and the third region 230.

[0094] In this embodiment, the first control unit determines the driving current of at least one of the first light-emitting chips L1 and L2 based on the spatial filter value corresponding to at least one of the first light-emitting chips L1 and L2 in the first region 210 and the third region 230. The spatial filter value of the first light-emitting chip L1 in the first region 210 is greater than that in the third region 230, and the spatial filter value of the second light-emitting chip L2 in the third region 230 is greater than that in the first region 210. This results in the driving current corresponding to the first light-emitting chip L1 in the first region 210 being greater than that in the third region 230. Consequently, the luminous brightness of the first light-emitting chip L1 in the first region 210 is greater than that in the third region 230, and the luminous brightness of the second light-emitting chip L2 in the third region 230 is greater than that in the first region 210, thus improving the uneven luminous brightness of the target light-emitting chips in the first region 210, second region 220, and third region 230.

[0095] In one embodiment, the first control unit further determines the driving current of the corresponding light-emitting chip based on the spatial filtering value of each light-emitting chip in the first region, the second region, and the third region, so that each light-emitting chip in the first region, the second region, and the third region emits a light beam.

[0096] Among them, the spatial filter value corresponding to the first light-emitting chip in the first region is greater than the spatial filter value corresponding to the first light-emitting chip in the third region and the spatial filter value corresponding to the second light-emitting chip in the first region, and the spatial filter value corresponding to the second light-emitting chip in the third region is greater than the spatial filter value corresponding to the second light-emitting chip in the first region and the spatial filter value corresponding to the first light-emitting chip in the third region.

[0097] The light-emitting chips in the first, second, and third regions emit light beams, enabling the light beams from these chips to mix. However, if the spatial filter values ​​for the light-emitting chips in each region are equal, the blocking of the light beams emitted by the first and second light-emitting chips by the packaging bracket can cause color distortion in the first and third regions, making it difficult to ensure that the light beams emitted by the light-emitting chips in the first, second, and third regions can be mixed to produce a white light.

[0098] Since the obstruction caused by the inner side of the packaging bracket to the light beam emitted by the second light-emitting chip in the first region is minimal, or can be understood as minimal, the impact on the light emission effect is not significant. However, the inner side of the packaging bracket significantly obstructs the light beam emitted by the first light-emitting chip in the first region. Therefore, to improve the light mixing effect between the light beam emitted by the first and second light-emitting chips in the first region, the first control unit determines that the spatial filter value corresponding to the first light-emitting chip in the first region is greater than the spatial filter value corresponding to the second light-emitting chip in the first region. This results in the driving current corresponding to the first light-emitting chip in the first region being greater than the driving current corresponding to the second light-emitting chip in the first region. Consequently, the luminous brightness of the first light-emitting chip in the first region is greater than that of the second light-emitting chip in the first region. This compensates for the obstruction caused by the inner side of the packaging bracket to the light beam emitted by the first light-emitting chip in the first region, ensuring that the luminous brightness of the first light-emitting chip in the first region is ultimately comparable to that of the second light-emitting chip, thus improving the light mixing effect and mitigating the problem of the first region being color-biased to the color of the light beam emitted by the second light-emitting chip.

[0099] Since the second inner side of the packaging bracket causes minimal obstruction to the light beam emitted by the first light-emitting chip in the third region, or in other words, the obstruction has little impact on the light emission effect. However, the second inner side of the packaging bracket significantly obstructs the light beam emitted by the second light-emitting chip in the third region. Therefore, to improve the light mixing effect between the light beams emitted by the first and second light-emitting chips in the third region, the first control unit determines that the spatial filter value corresponding to the second light-emitting chip in the third region is greater than that corresponding to the first light-emitting chip in the third region. This results in a greater driving current for the second light-emitting chip in the third region compared to the first light-emitting chip, thereby increasing the brightness of the second light-emitting chip in the third region compared to the first light-emitting chip. This compensates for the obstruction caused by the second inner side of the packaging bracket, ensuring that the brightness of the second light-emitting chip in the third region is ultimately comparable to that of the first light-emitting chip, improving the light mixing effect and mitigating the issue of the third region's color shifting to the color of the light beam emitted by the first light-emitting chip.

[0100] In one embodiment, the spatial filter values ​​corresponding to the third light-emitting chip in the first region and the third region are equal.

[0101] The third light-emitting chip is a light-emitting chip other than the first and second light-emitting chips among at least three light-emitting chips.

[0102] The number of the third light-emitting chip can be one or more, which can be determined according to the number of light-emitting chips in the light-emitting device.

[0103] For example, assuming the light-emitting device includes three light-emitting chips, the number of third light-emitting chips can be one, and it is disposed in the package holder between the first light-emitting chip and the second light-emitting chip.

[0104] In another example, assuming the light-emitting device includes four light-emitting chips, the number of third light-emitting chips can be two, and the two third light-emitting chips are disposed in a package holder, sequentially disposed between the first and second light-emitting chips. It is understood that the number of third light-emitting chips can also be other than the example described above.

[0105] Since the first and second inner sides of the packaging bracket cause minimal obstruction to the light beam emitted by the third light-emitting chip, or it can be understood that the obstruction caused by the first inner side of the packaging bracket to the light beam emitted by the second light-emitting chip in the first region has little impact on the light emission effect, in this embodiment, the spatial filter values ​​corresponding to the third light-emitting chips in the first and third regions are equal, making the driving currents corresponding to the third light-emitting chips in the first and third regions equal. This ensures that the brightness of the light beam emitted by the third light-emitting chips in the first and third regions is equal, improving the light mixing effect between the third light-emitting chips in the first and third regions and the first and second light-emitting chips in their respective regions, and ensuring the uniformity of brightness of the mixed white light in the first and third regions.

[0106] In one embodiment, the second region includes a first sub-region, a second sub-region, and a third sub-region arranged sequentially along a second direction; the second direction is perpendicular to the first direction.

[0107] In one embodiment, the spatial filter values ​​corresponding to the first light-emitting chips in the first sub-region and the third sub-region are equal, and are less than the spatial filter value corresponding to the first light-emitting chip in the first region and greater than the spatial filter value corresponding to the first light-emitting chip in the third region.

[0108] In the second region, the inner side of the packaging bracket of the light-emitting device at the boundary between the first and third sub-regions and the first region obstructs the light beam emitted by the first light-emitting chip. Similarly, in the first region, the inner side of the packaging bracket of the light-emitting device at the boundary between the first and third sub-regions obstructs the light beam emitted by the second light-emitting chip. After mixing, the color shift is not significant and does not affect the light emission effect. Therefore, the spatial filter values ​​corresponding to the first light-emitting chips in the first and third sub-regions are equal, ensuring the uniformity of the light emission brightness of the first light-emitting chips in both regions and ensuring the effective mixing of the light beams emitted by the first and third light-emitting chips with the second light-emitting chip in the first region.

[0109] The spatial filtering values ​​corresponding to the first light-emitting chips in the first and third sub-regions are less than those corresponding to the first light-emitting chips in the first region and greater than those corresponding to the first light-emitting chips in the third region. This results in the driving current corresponding to the first light-emitting chips in the first and third sub-regions being less than that corresponding to the first light-emitting chips in the first region. Consequently, the light beam brightness emitted by the first light-emitting chips in the first and third sub-regions is less than that emitted by the first light-emitting chips in the first region and greater than that emitted by the first light-emitting chips in the third region. This ensures the light mixing effect and brightness uniformity between the first and third sub-regions and the first and third regions, respectively.

[0110] In one embodiment, the spatial filter values ​​corresponding to the second light-emitting chips in the first sub-region and the third sub-region are equal, and are greater than the spatial filter value corresponding to the second light-emitting chip in the first region and less than the spatial filter value corresponding to the second light-emitting chip in the third region.

[0111] In the second region, the light beam emitted by the second light-emitting chip is partially obstructed by the inner side of the packaging bracket of the light-emitting device at the boundary between the first and third sub-regions and the third region. Similarly, in the third region, the light beam emitted by the first light-emitting chip is partially obstructed by the inner side of the packaging bracket of the light-emitting device at the boundary between the first and third sub-regions. After mixing, the color shift is not significant and does not affect the light emission effect. Therefore, the spatial filter values ​​corresponding to the second light-emitting chips in the first and third sub-regions are equal, ensuring the uniformity of the luminous brightness of the second light-emitting chips in both regions and ensuring the effective mixing of the light beams emitted by the second light-emitting chips in the first and second sub-regions with the light beam emitted by the first light-emitting chip in the third region.

[0112] The spatial filtering values ​​corresponding to the second light-emitting chips in the first and third sub-regions are greater than those corresponding to the second light-emitting chips in the first region and less than those corresponding to the second light-emitting chips in the third region. This results in the driving current corresponding to the second light-emitting chips in the first and third sub-regions being greater than that corresponding to the second light-emitting chips in the first region. Consequently, the light beam brightness emitted by the second light-emitting chips in the first and third sub-regions is greater than that emitted by the second light-emitting chips in the first region and less than that emitted by the second light-emitting chips in the third region. This ensures the light mixing effect and brightness uniformity between the first and third sub-regions and the first and third regions, respectively.

[0113] In one embodiment, the spatial filter values ​​corresponding to at least three light-emitting chips in the first sub-region and the third sub-region are equal.

[0114] In this embodiment, the spatial filter values ​​corresponding to the first, second, and third light-emitting chips in the first and third sub-regions are equal, so that the driving currents corresponding to at least three light-emitting chips in the first and third sub-regions are equal, thereby making the light beam brightness emitted by at least three light-emitting chips in the first and third sub-regions equal, ensuring the brightness uniformity among at least three light-emitting chips in the first and third sub-regions.

[0115] In one embodiment, the spatial filter values ​​corresponding to at least three light-emitting chips in the second sub-region are equal.

[0116] For example, the light-emitting device may include three light-emitting chips, and the spatial filtering values ​​of the three light-emitting chips in the second sub-region are all equal.

[0117] In this embodiment, the spatial filter values ​​corresponding to at least three light-emitting chips in the second sub-region are equal, and the driving currents corresponding to at least three light-emitting chips in the second sub-region are equal, so that the light emission brightness of at least three light-emitting chips in the second sub-region is equal, thus ensuring the light mixing effect of the light beams emitted by at least three light-emitting chips in the second sub-region.

[0118] In one embodiment, the spatial filter values ​​corresponding to at least three light-emitting chips in the second sub-region are respectively greater than the spatial filter values ​​corresponding to any light-emitting chip in any region other than the second sub-region.

[0119] In the second sub-region, the spatial filter values ​​corresponding to at least three light-emitting chips of each light-emitting device are the largest relative to the first region, the first sub-region, the third sub-region, and the third region.

[0120] For example, if the spatial filter value corresponding to the first light-emitting chip in the first region is X, the spatial filter value corresponding to the first light-emitting chip in the first sub-region and the third sub-region is Y, and the spatial filter value corresponding to the first light-emitting chip in the third region is Z, then the spatial filter value corresponding to the first light-emitting chip in the second sub-region can be K, where K > X > Y > Z, and K, X, Y, and Z are all positive integers. This is not the only possible interpretation.

[0121] In another example, the spatial filter value corresponding to the first region, the first sub-region, the third sub-region, and the third light-emitting chip in the third region is all Y, while the spatial filter value corresponding to the third light-emitting chip in the second sub-region can be K. This is not the only possible embodiment.

[0122] For another example, if the spatial filter value corresponding to the second light-emitting chip in the first region is Z, the spatial filter value corresponding to the second light-emitting chip in the first and third sub-regions is Y, and the spatial filter value corresponding to the second light-emitting chip in the third region is X, then the spatial filter value corresponding to the second light-emitting chip in the second sub-region can be K. This is not a limitation.

[0123] In this embodiment, the spatial filter values ​​corresponding to at least three light-emitting chips in the second sub-region are greater than the spatial filter values ​​corresponding to any light-emitting chip in any region other than the second sub-region. The spatial filter values ​​corresponding to at least three light-emitting chips in the second sub-region can be used as a reference to set the spatial filter values ​​of the same light-emitting chips in the first sub-region, the third sub-region, the first region, and the third region respectively, which can effectively improve the halo problem.

[0124] In one embodiment, the spatial filter value corresponding to the third light-emitting chip in the first sub-region and the third sub-region is equal to the spatial filter value corresponding to the third light-emitting chip in the first region and the third region.

[0125] The third light-emitting chip is a light-emitting chip other than the first and second light-emitting chips among at least three light-emitting chips.

[0126] In this embodiment, the spatial filter value corresponding to the third light-emitting chip in the first sub-region and the third sub-region is equal to the spatial filter value corresponding to the third light-emitting chip in the first region and the third region, and the driving current corresponding to the third light-emitting chip in the first sub-region and the third sub-region is equal to the driving current corresponding to the third light-emitting chip in the first region and the third region, so that the luminous brightness of the third light-emitting chip in the first sub-region and the third sub-region is equal to the luminous brightness of the third light-emitting chip in the first region and the third region, thereby ensuring the uniformity of luminous brightness of the third light-emitting chip in the first sub-region, the third sub-region and the first region and the second region.

[0127] In one embodiment, the difference between the sum of the spatial filter values ​​corresponding to the same light-emitting chips in the first region 210, the second region 220, and the third region 230 and 256 is within a preset range.

[0128] The same light-emitting chips are those that emit light beams of the same color in the first region 210, the second region 220 and the third region 230.

[0129] The preset range can be flexibly set according to actual display needs. For example, the preset range can be close to zero or equal to zero. For example, the sum of the spatial filter values ​​corresponding to the same light-emitting chips in the first region 210, the second region 220 and the third region 230 can be 255 or 256, and is not limited to this.

[0130] The explanation will be based on an example where the light-emitting device 2011 includes a first light-emitting chip L1, a second light-emitting chip L2, and a third light-emitting chip L3 encapsulated within a packaging bracket 111, and the sum of the spatial filter values ​​corresponding to the same light-emitting chips in the first region 210, the second region 220, and the third region 230 is 256. For example, see the appendix. Figure 4 , attached Figure 4 The diagram shows the spatial filter value distribution of the first light-emitting chip L1 in the first region 210, the second region 220, and the third region 230. The spatial filter value of the first light-emitting chip L1 in the first region 210 is 32, the spatial filter value of the first light-emitting chip L1 in the first sub-region 221 and the third sub-region 223 is 24, and the spatial filter value of the first light-emitting chip L1 in the third region 230 is 16. Therefore, the spatial filter value of the first light-emitting chip L1 in the second sub-region 222 can be 64.

[0131] See appendix Figure 5 , attached Figure 5A schematic diagram of the spatial filter value distribution of the third light-emitting chip L3 in the first region 210, the second region 220 and the third region 230 is shown. The spatial filter value of the third light-emitting chip L3 in the first region 210, the first sub-region 221, the third sub-region 223 and the third region 230 is 24. The spatial filter value of the third light-emitting chip L3 in the second sub-region 222 can be 64.

[0132] See appendix Figure 6 , attached Figure 6 A schematic diagram of the spatial filter value distribution of the second light-emitting chip L2 in the first region 210, the second region 220 and the third region 230 is shown. The spatial filter value of the second light-emitting chip L2 in the first region 210 is 16, the spatial filter value of the second light-emitting chip L2 in the first sub-region 221 and the third sub-region 223 is 24, and the spatial filter value of the second light-emitting chip L2 in the third region 230 is 32. Therefore, the spatial filter value of the second light-emitting chip L2 in the second sub-region 222 can be 64.

[0133] It is understood that the spatial filtering values ​​corresponding to each light-emitting chip in each region / sub-region in the above examples are merely reference values ​​exemplified to explain the scheme in this embodiment. In other embodiments, the spatial filtering values ​​corresponding to each light-emitting chip may also be other, and are not limited to the above examples.

[0134] In this embodiment, the difference between the sum of the spatial filter values ​​corresponding to the same light-emitting chips in the first region 210, the second region 220 and the third region 230 and 256 is within a preset range, which can ensure that the light-emitting brightness of the same light-emitting chips in the first region 210, the second region 220 and the third region 230 meets the preset light-emitting requirements and ensures the light-emitting effect.

[0135] In one embodiment, the light-emitting device may include three light-emitting chips encapsulated in a package holder and arranged along a first direction.

[0136] The first light-emitting chip is configured to emit a blue light beam; the second light-emitting chip is configured to emit a red light beam; and the third light-emitting chip is configured to emit a green light beam.

[0137] In this embodiment, the light-emitting chips encapsulated in the packaging bracket in the light-emitting device emit blue light beams, red light beams, and green light beams respectively, achieving a wider color gamut coverage and more accurate color reproduction.

[0138] In one embodiment, a display device is provided. See Appendix again. Figure 1The display device includes a display panel 10, which is configured to display images. The display panel 10 has a plurality of liquid crystal cells arranged in an array, and the image is displayed by controlling the light transmittance of each liquid crystal cell.

[0139] The display device also includes a backlight module 20, which is located on the light-incident side of the display panel 10 and is configured to provide a light source for the display panel 10. The backlight module 20 can emit light uniformly across the entire light-emitting surface, providing uniform light to the light-incident side of the display panel 10, so that the light transmitted through each liquid crystal cell forms a uniform display image.

[0140] The backlight module 20 may include a first region 210, a second region 220 and a third region 230 arranged sequentially along a first direction. Each region includes at least one backlight partition 2010, and the backlight partition 2010 includes at least one row of light-emitting devices 2011.

[0141] For example, see Appendix Figure 7 , attached Figure 7 A schematic diagram showing the arrangement of the light-emitting device 2011 in the first region 210, the second region 220, and the third region 230 in this embodiment is provided. (The attached diagram is not included in the provided text.) Figure 7 The illustration shows a first region 210 comprising three light-emitting devices 2011 arranged in a row. These three light-emitting devices 2011 in the first region 210 can be light-emitting devices 2011 within the same backlight partition 2010. (See attached image.) Figure 7 The illustration shows a second region 220 comprising six light-emitting devices 2011. These six devices 2011 are arranged in two columns. These two columns can correspond to light-emitting devices 2011 in two separate backlight zones 2010, or they can be light-emitting devices 2011 within the same backlight zone 2010. (See attached image.) Figure 7 The illustration shows a third region 230 comprising three light-emitting devices 2011 arranged in a row. These three light-emitting devices 2011 in the third region 230 may be light-emitting devices 2011 within the same backlight partition 2010. In other embodiments, the number and arrangement of the light-emitting devices 2011 may vary and are not limited to the examples described above.

[0142] The light-emitting device 2011 may include a package holder 111.

[0143] The light-emitting device 2011 may include at least three light-emitting chips arranged along a first direction. The at least three light-emitting chips are disposed within a package holder 111. The at least three light-emitting chips are configured to emit light beams of different colors to mix the light into white light. The first light-emitting chip L1 of the at least three light-emitting chips is disposed on the first inner side of the package holder 111, and the second light-emitting chip L2 of the at least three light-emitting chips is disposed on the second inner side of the package holder 111. The direction from the first inner side to the second inner side is parallel to the first direction.

[0144] The display device may also include a second control unit.

[0145] The second control unit can be a BCON control unit (Backlight Controller).

[0146] The second control unit can be configured to control each light-emitting chip in the second region 220 to emit a light beam.

[0147] The second control unit can work in conjunction with other control units and / or driver chips to jointly control the light-emitting chips to emit light beams. For example, the first control unit determines brightness information based on the occlusion of the first and second light-emitting chips by the packaging bracket, and the second control unit determines backlight driving data (which may carry driving current information) based on the brightness information. The backlight driving data is then sent to the driver chip used to drive the backlight module, and the driver chip drives the corresponding light-emitting chip to emit light beams.

[0148] The second control unit can also be configured to control the first light-emitting chip L1 in the first region 210 and / or the second light-emitting chip L2 in the third region 230 to emit a light beam.

[0149] For example, the second control unit can control the first light-emitting chip L1 in the first region 210 to emit a light beam, thereby supplementing the light of the first light-emitting chip L1 in the second region 220, compensating for the occlusion of the light beam emitted by the first light-emitting chip L1 caused by the first inner side of the packaging bracket 111 in the second region 220, and improving the color deviation problem in the second region 220 caused by the uneven brightness of the first light-emitting chip L1 in the second region 220.

[0150] In another example, the second control unit can control the second light-emitting chip L2 in the third region 230 to emit a light beam, thereby supplementing the light emitted by the second light-emitting chip L2 in the second region 220, compensating for the occlusion of the light beam emitted by the second light-emitting chip L2 caused by the second inner side of the packaging bracket 111 in the second region 220, and improving the color deviation problem in the second region 220 caused by the uneven brightness of the second light-emitting chip L2 in the second region 220.

[0151] In another example, the second control unit can control the first light-emitting chip L1 in the first region 210 to emit a light beam, and control the second light-emitting chip L2 in the third region 230 to emit a light beam, thereby simultaneously providing supplementary lighting for the first light-emitting chip L1 and the second light-emitting chip L2 in the second region 220, compensating for the color distortion problem in the second region 220 caused by the occlusion of the light beam emitted by the first light-emitting chip L1 by the first inner side of the packaging bracket 111 and the light beam emitted by the second light-emitting chip L2 by the second inner side.

[0152] In this embodiment, the second control unit controls each light-emitting chip in the second region 220 to emit a light beam, and at least one of the first light-emitting chip L1 in the first region 210 and the second light-emitting chip L2 in the third region 230 to emit a light beam, so that the light beam emitted by at least one of the first light-emitting chip L1 in the first region 210 and the second light-emitting chip L2 in the third region 230 can supplement the light of the second region 220, thus solving the problem of uneven light emission brightness of the first light-emitting chip L1 and / or the second light-emitting chip L2 in the second region 220.

[0153] In the description of this specification, references to terms such as "some embodiments," "other embodiments," and "ideal embodiments" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative descriptions of the above terms do not necessarily refer to the same embodiments or examples.

[0154] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0155] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A display device, characterized in that, include: The display panel is configured to display images; A backlight module, located on the light-incident side of the display panel, is configured to provide a light source for the display panel; The backlight module includes: A first region, a second region, and a third region are arranged sequentially along a first direction, each region including at least one backlight partition, and the backlight partition including at least one row of light-emitting devices; The light-emitting device includes: Packaging bracket; At least three light-emitting chips are arranged along the first direction, the at least three light-emitting chips are disposed within the packaging bracket, the at least three light-emitting chips are configured to emit light beams of different colors to mix into white light, the first light-emitting chip of the at least three light-emitting chips is disposed on the first inner side of the packaging bracket, the second light-emitting chip of the at least three light-emitting chips is disposed on the second inner side of the packaging bracket; the direction from the first inner side to the second inner side is parallel to the first direction; The first control unit is configured to control the light emission state of the backlight module; The first control unit determines the driving current of the target light-emitting chip based on the spatial filtering values ​​corresponding to the target light-emitting chips in the first region and the third region; the target light-emitting chip includes at least one of a first light-emitting chip and a second light-emitting chip. The spatial filter value corresponding to the first light-emitting chip in the first region is greater than the spatial filter value corresponding to the first light-emitting chip in the third region; the spatial filter value corresponding to the second light-emitting chip in the third region is greater than the spatial filter value corresponding to the second light-emitting chip in the first region.

2. The display device according to claim 1, characterized in that, The first control unit further determines the driving current of the corresponding light-emitting chip based on the spatial filtering value of each light-emitting chip in the first region, the second region, and the third region, so that each light-emitting chip in the first region, the second region, and the third region emits a light beam; Wherein, the spatial filter value corresponding to the first light-emitting chip in the first region is greater than the spatial filter value corresponding to the first light-emitting chip in the third region and the spatial filter value corresponding to the second light-emitting chip in the first region, and the spatial filter value corresponding to the second light-emitting chip in the third region is greater than the spatial filter value corresponding to the second light-emitting chip in the first region and the spatial filter value corresponding to the first light-emitting chip in the third region.

3. The display device according to claim 2, characterized in that, The spatial filter values ​​corresponding to the third light-emitting chips in the first region and the third region are equal; The third light-emitting chip is any light-emitting chip other than the first and second light-emitting chips among the at least three light-emitting chips.

4. The display device according to claim 1, characterized in that, The second region includes a first sub-region, a second sub-region, and a third sub-region arranged sequentially along a second direction; the second direction is perpendicular to the first direction. The spatial filter values ​​corresponding to the first light-emitting chips in the first sub-region and the third sub-region are equal, and less than the spatial filter value corresponding to the first light-emitting chip in the first region, and greater than the spatial filter value corresponding to the first light-emitting chip in the third region; and / or, The spatial filter values ​​corresponding to the second light-emitting chip in the first sub-region and the third sub-region are equal, and are greater than the spatial filter value corresponding to the second light-emitting chip in the first region and less than the spatial filter value corresponding to the second light-emitting chip in the third region; and / or, The spatial filter values ​​corresponding to the at least three light-emitting chips in the first sub-region and the third sub-region are equal.

5. The display device according to claim 4, characterized in that, The spatial filter values ​​corresponding to the at least three light-emitting chips in the second sub-region are all equal.

6. The display device according to claim 4, characterized in that, The spatial filter values ​​corresponding to the at least three light-emitting chips in the second sub-region are respectively greater than the spatial filter values ​​corresponding to any light-emitting chip in any region other than the second sub-region.

7. The display device according to claim 4, characterized in that, The spatial filter value corresponding to the third light-emitting chip in the first sub-region and the third sub-region is equal to the spatial filter value corresponding to the third light-emitting chip in the first region and the third region; The third light-emitting chip is any light-emitting chip other than the first and second light-emitting chips among the at least three light-emitting chips.

8. The display device according to claim 3, characterized in that, The sum of the spatial filter values ​​corresponding to the same light-emitting chips in the first region, the second region, and the third region, and the difference between them and 256 are within a preset range; The same light-emitting chip refers to the light-emitting chip that emits the same color light beam in the first region, the second region, and the third region.

9. The display device according to claim 3, characterized in that, The light-emitting device includes three light-emitting chips encapsulated in the encapsulation bracket and arranged along the first direction; The first light-emitting chip is configured to emit a blue light beam; the second light-emitting chip is configured to emit a red light beam; and the third light-emitting chip is configured to emit a green light beam.

10. A display device, characterized in that, include: The display panel is configured to display images; A backlight module, located on the light-incident side of the display panel, is configured to provide a light source for the display panel; The backlight module includes: A first region, a second region, and a third region are arranged sequentially along a first direction, each region including at least one backlight partition, and the backlight partition including at least one row of light-emitting devices; The light-emitting device includes: Packaging bracket; At least three light-emitting chips are arranged along the first direction, the at least three light-emitting chips are disposed within the packaging bracket, the at least three light-emitting chips are configured to emit light beams of different colors to mix into white light, the first light-emitting chip of the at least three light-emitting chips is disposed on the first inner side of the packaging bracket, the second light-emitting chip of the at least three light-emitting chips is disposed on the second inner side of the packaging bracket; the direction from the first inner side to the second inner side is parallel to the first direction; The second control unit is configured to control each light-emitting chip in the second region to emit a light beam; and, The first light-emitting chip in the first region and / or the second light-emitting chip in the third region are controlled to emit light beams.

Images