Display module and display device

Abstract

The present invention discloses a display module and a display device, wherein the display module comprises a display panel and a backlight module, wherein the display panel comprises a display box and a light control box; the display box has a display pixel area, and the light control box has a dimming pixel area, wherein the dimming pixel area comprises a dimming sub-pixel; along a direction perpendicular to the plane where the display panel is located, the display module comprises a display area, wherein the display area comprises a first area and a second area; the light control box further comprises a black matrix layer, wherein the black matrix layer comprises a dimming sub-pixel opening and a shading strip, wherein the shading strip comprises a first sub-shading strip; along a second direction, the line width of the first sub-shading strip in the first area is different from the line width of the first sub-shading strip in the second area, wherein the first sub-shading strip comprises a first side and a second side opposite to each other, wherein the line width is the spacing between the first side and the second side in the first sub-shading strip along the second direction; and / or, along the second direction, the dimming sub-pixel opening area in the first area is different. The present invention can improve the display uniformity of the display module.

Description

Technical Field

[0001] The present invention relates to the field of display technology, and more specifically, to a display module and a display device. Background Art

[0002] With the development of display technology, people's dependence on the exchange and transmission of information is increasing, and the application of low-power, high-contrast liquid crystal displays will gradually increase.

[0003] The stacked screen technology uses a double-layer liquid crystal box design of black and white and color, which can make the image brighter and the darker, achieving ultra-high contrast. This technology can be used with Local Dimming technology. Local Dimming technology refers to dividing the backlight into multiple areas and independently controlling the backlight brightness of different areas to improve the contrast of the liquid crystal display (LCD). However, since the Local Dimming backlight requires partition control, the brightness between adjacent partitions is different, and there is light crosstalk between adjacent partitions, which leads to uneven display problems. This is a technical problem that needs to be solved in this field. Summary of the invention

[0004] In view of this, the present invention provides a display module and a display device to solve the problem of light crosstalk between adjacent partitions, thereby improving the display uniformity of the display module.

[0005] In a first aspect, the present application provides a display module, comprising a display panel and a backlight module arranged opposite to each other, wherein the backlight module is located at a light incident side of the display panel, and the display panel comprises a display box and a light control box arranged opposite to each other;

[0006] The display box has a plurality of display pixel regions, the light control box has a plurality of dimming pixel regions, the dimming pixel region includes at least two dimming sub-pixels, and along a direction perpendicular to the plane where the display panel is located, one dimming pixel region covers at least one display pixel region;

[0007] Along a direction perpendicular to the plane where the display panel is located, the display module includes a display area, and the display area includes a corresponding first area and a second area;

[0008] The light control box further includes a black matrix layer, the black matrix layer includes a dimming sub-pixel opening and a light shielding strip arranged around the dimming sub-pixel opening, the light shielding strip includes a first sub-light shielding strip, the first sub-light shielding strip extends along a first direction and is arranged along a second direction, the first direction is an extension direction of the data line, and the second direction intersects with the first direction;

[0009] Along the second direction, the line width of the first sub-shading strip in the first area is different from the line width of the first sub-shading strip in the second area, the first sub-shading strip includes a first side and a second side opposite to each other, and the line width is the spacing between the first side and the second side of the first sub-shading strip along the second direction; and / or,

[0010] Along the second direction, the opening areas of the dimming sub-pixels in the first region are different.

[0011] In a second aspect, the present application also provides a display device, comprising the above-mentioned display module.

[0012] Compared with the prior art, the display module and display device provided by the present invention achieve at least the following beneficial effects:

[0013] The display module and display device provided by the present invention, the display module includes a display panel and a backlight module arranged opposite to each other, the backlight module is located on the light incident side of the display panel, the display panel includes a display box and a light control box arranged opposite to each other; the display box has a plurality of display pixel areas, the light control box has a plurality of dimming pixel areas, the dimming pixel area includes at least two dimming sub-pixels, along the direction perpendicular to the plane where the display panel is located, one dimming pixel area covers at least one display pixel area; along the direction perpendicular to the plane where the display panel is located, the display module includes a display area, the display area includes a corresponding first area and a second area; the light control box also includes a black matrix layer, the black matrix layer includes a dimming sub-pixel opening and a shading strip arranged around the dimming sub-pixel opening, the shading strip includes a first sub-shading strip, the first sub-shading strip extends along a first direction and along a second direction Arrangement, the first direction is the extension direction of the data line, and the second direction intersects with the first direction; along the second direction, the line width of the first sub-light-shielding strip in the first area is different from the line width of the first sub-light-shielding strip in the second area, the first sub-light-shielding strip includes a first side and a second side opposite to each other, and the line width is the spacing between the first side and the second side of the first sub-light-shielding strip along the second direction; and / or, along the second direction, the dimming sub-pixel opening areas in the first area are different. The above scheme can effectively block the interference between adjacent local dimming areas in the backlight module. When the light control box and the display box are bonded, since the line widths of the corresponding first sub-light-shielding strips in at least part of the first area and the second area in the light control box are different, the interference phenomenon between some black matrix stripes in the light control box and the display box can be improved, thereby improving some moiré patterns, and further improving the display uniformity of the display module.

[0014] Of course, any product implementing the present invention does not necessarily need to achieve all of the technical effects described above at the same time.

[0015] Further features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention.

[0017] Figure 1 It is a simplified structural diagram of the display panel and the light control panel after being misaligned in the prior art;

[0018] Figure 2 It is a structural schematic diagram of a display module provided by the present invention;

[0019] Figure 3 It is a simplified structural diagram of a display module provided by the present invention;

[0020] Figure 4 This is a simplified structural diagram of a light control box and a backlight module provided by the present invention;

[0021] Figure 5 is a simplified structural diagram of another display module provided by the present invention;

[0022] Figure 6 It is a structural schematic diagram of a light control box provided by the present invention;

[0023] Figure 7 This is a simplified structural diagram of another light control box and a backlight module provided by the present invention;

[0024] Figure 8 It is a structural schematic diagram of a special-shaped backlight module provided by the prior art;

[0025] Fig. 9 This is a simplified structural diagram of another light control box provided by the present invention in cooperation with a backlight module;

[0026] Fig.10 This is a simplified structural diagram of another light control box provided by the present invention in cooperation with a backlight module;

[0027] Fig.11 yes Fig.10 A-A' cross-sectional view;

[0028] Fig.12 This is a simplified structural diagram of another light control box provided by the present invention in cooperation with a backlight module;

[0029] Fig.13 This is a simplified structural diagram of another light control box provided by the present invention in cooperation with a backlight module;

[0030] Fig.14 It is a structural schematic diagram of another light control box provided by the present invention;

[0031] Fig.15 It is a schematic diagram of the structure of the display device provided by the present invention. DETAILED DESCRIPTION

[0032] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangement of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention unless otherwise specifically stated.

[0033] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

[0034] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered as part of the specification.

[0035] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0036] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0037] In view of the problem of uneven display in the dual-screen display module in the related art, the inventor has conducted the following research on the related art. Generally, the backlight module includes a direct-type backlight module and an edge-entry backlight module. For the direct-type backlight module, the Local Dimming backlight needs to be controlled by partitions. The brightness between adjacent partitions is different, and there is a light crosstalk phenomenon between adjacent partitions, which leads to the problem of uneven display. For the edge-entry backlight module, the edge-entry backlight module includes a light source and a light guide plate. The uniformity of its light emission is determined by the light source and the grid points on the light guide plate. For example, the grid points set on the light-emitting surface of the light guide plate destroy the total reflection of the light inside the light guide plate, so that the light is uniformly emitted from the light guide plate on the light-emitting surface, thereby realizing the transformation from a point light source to a surface light source. However, since the distance between the light source and the grid points on the light guide plate is from near to far, the luminous intensity close to the light source is greater than the luminous intensity far from the light source, that is, the luminous intensity far from the light source is weakened, so that the display module has uneven brightness and darkness, affecting the overall display effect of the display module.

[0038] also, Figure 1 It is a schematic diagram of the structure of the display panel and the light control panel after misalignment in the prior art; Figure 1As shown, in the prior art, the sub-pixel spatial frequencies of the display panel 1 ′ and the dimming panel 2 ′ of the display module 100 ′ are close, resulting in high-frequency interference fringes, namely moiré fringes. It can be understood that the black matrix in the display panel 1' can be regarded as a line, the sub-pixels between the black matrix are light-transmitting areas, the sub-pixels and the black matrix are arranged regularly, and interference is formed when the light passes through the edge of the black matrix. There is a certain error in the alignment accuracy when the display panel 1' and the dimming panel 2' are bonded. The black matrices of the display panel 1' and the dimming panel 2' are two intersecting lines, and these two lines interfere constructively at a constant angle and frequency. When the human eye cannot distinguish these two lines, interference patterns, namely moiré patterns, will be seen. It can be understood that: when the display panel 1' and the dimming panel 2' have an alignment deviation when they are bonded, the black matrix lines 11' of the display panel 1' and the black matrix lines 21' of the dimming panel 2' are misaligned, resulting in interference of light after being emitted by the dimming panel 2', and regular light and dark alternating areas appear, resulting in moiré patterns, thereby causing uneven display problems.

[0039] In order to improve the problem of display uniformity, the present invention provides a display module and a display device. Specific embodiments of the display module will be described in detail below.

[0040] Figure 2 It is a structural schematic diagram of a display module provided by the present invention; Figure 3 It is a simplified structural diagram of a display module provided by the present invention; Figure 4 This is a simplified structural diagram of a light control box and a backlight module provided by the present invention; Figure 5 is a simplified structural diagram of another display module provided by the present invention; Figure 6 is a structural schematic diagram of a light control box provided by the present invention; Figure 2-Figure 6 As shown, this embodiment provides a display module 100, including a display panel 1 and a backlight module 2 which are arranged opposite to each other, the backlight module 2 is located at the light incident side of the display panel 1, and the display panel 1 includes a display box 11 and a light control box 12 which are arranged opposite to each other;

[0041] The display box 11 has a plurality of display pixel regions 110, and the light control box 12 has a plurality of dimming pixel regions 120. The dimming pixel region 120 includes at least two dimming sub-pixels 130. In a direction perpendicular to the plane where the display panel 1 is located, one dimming pixel region 120 covers at least one display pixel region 110.

[0042] Along a direction perpendicular to the plane where the display panel 1 is located, the display module 100 includes a display area 3, and the display area 3 includes a corresponding first area 31 and a second area 32;

[0043] The light control box 12 further includes a black matrix layer 13, the black matrix layer 13 includes a dimming sub-pixel opening 130 and a light shielding strip 131 arranged around the dimming sub-pixel opening 130, the light shielding strip 131 includes a first sub-light shielding strip 1310, the first sub-light shielding strip 1310 extends along a first direction X and is arranged along a second direction Y, the first direction X is the extension direction of the data line, and the second direction Y intersects with the first direction X;

[0044] Along the second direction Y, the line width of the first sub-light-shielding strip 1310 in the first zone 31 is different from the line width of the first sub-light-shielding strip 1310 in the second zone 32, the first sub-light-shielding strip 1310 includes a first edge 1310a and a second edge 1310b relative to each other, and the line width is the distance between the first edge 1310a and the second edge 1310b in the first sub-light-shielding strip 1310 along the second direction Y; and / or, along the second direction Y, the area of ​​the dimming sub-pixel opening 130 in the first zone 31 is different.

[0045] Specifically, combined Figure 2-Figure 3 As shown, the display module 100 includes a display panel 1 and a backlight module 2 which are arranged opposite to each other. The backlight module 2 can be used to provide a light source for the display module 100;

[0046] Combination Figure 4 As shown, the backlight module 2 can be a direct-type backlight module, which can be divided into multiple local dimming areas 2a. Each local dimming area 2a can be controlled to emit light according to the image to be displayed. Each local dimming area 2a includes at least one LED light-emitting element (not shown in the figure). There is a dividing line 2b between two adjacent local dimming areas 2a. Multiple LED light-emitting elements are located on the same surface of the same substrate, and the emitting surface light source serves as the backlight. The LED light-emitting element can be Mini LED, which refers to an LED with a size of more than 100μm. From the process point of view, Mini LED has a high yield and special-shaped cutting characteristics compared to Micro LED. It can be matched with a soft and flexible substrate to achieve a high-curved backlight or a rigid and inflexible substrate. It adopts a local dimming design and divides multiple local dimming areas 2a. It has better color rendering, can bring more refined HDR (High-Dynamic Range) partitions to the LCD panel, and the thickness is also close to that of the OLED panel, which is convenient for lightweight design and has power saving function. The LED light-emitting element can also be MicroLED. Micro LED is a technology that miniaturizes and matrices LEDs. Simply put, it is to make the LED backlight source thinner, smaller, and arrayed, so that the LED unit can be smaller than 100 microns. Like OLED, each picture element can be individually addressed and driven to emit light (self-luminescence).

[0047] Combination Figure 5 and Figure 6 As shown, the backlight module 2 can also be an edge-entry backlight module, which includes a light source 2c and a light guide plate 2d. The light source 2c is located on a side surface of the light guide plate 2d, and the side surface is perpendicular to the light emitting surface of the light guide plate 2d. The light emitted by the light source 2c of the edge-entry backlight module is incident from the side of the light guide plate 2d into the light guide plate 2d for mixing and conversion into a surface light source, which is then conducted by the light guide plate 2d and emitted from the front side of the light guide plate 2d. The brightness uniformity of the edge-entry backlight module can be affected by the dots of the light guide plate 2d.

[0048] The backlight module 2 is located at the light incident side of the display panel 1. The display panel 1 includes a display box 11 and a light control box 12 which are arranged relatively to each other. The light control box 12 is located between the display box 11 and the backlight module 2. The light emitted by the backlight module 2 passes through the light control box 12 and the display box 11 in sequence. The display box 11 is configured to display the picture. The light control box 12 is configured to perform partition control on the light passing through itself and incident on the display box 11. It can be understood that the light control box 12 only has the effect of controlling the light output. The light control box 12 can effectively compensate for the uniformity of the light emitted by the backlight module 2.

[0049] Combination Figure 3 and Figure 5 As shown, the display box 11 further includes a color filter substrate 11a, an array substrate 11b, a liquid crystal (not shown in the figure) and a polarizer. The color filter substrate 11a is arranged opposite to the array substrate 11b, the array substrate 11b and the liquid crystal sandwiched between the color filter substrate 11a and the array substrate 11b, and the polarizer includes an upper polarizer 11c and a lower polarizer 11d, wherein the upper polarizer 11c is located on a side of the color filter substrate 11a away from the array substrate 11b, and the lower polarizer 11d is located on a side of the array substrate 11b away from the color filter substrate 11a; the light control box 12 includes a first substrate 12a, a second substrate 12b, a liquid crystal (not shown in the figure), a diffuser 12c and a polarizer 12d, the first substrate 12a is arranged opposite to the second substrate 12b, the liquid crystal is sandwiched between the first substrate 12a and the second substrate 12b, the diffuser 12c is located on a side of the first substrate 12a away from the second substrate 12b, and the polarizer 12d is located on a side of the second substrate 12b away from the first substrate 12a;

[0050] It should be noted that: for the display box 11 and the light control box 12, their film layer structures are roughly similar. Since the light control box 12 only plays a light control role, the first substrate 12a does not need to be made into a color resist layer, and the color film substrate 11a needs to perform color display, so a color resist layer needs to be made. The film layer structure of the array substrate 11b and the second substrate 12b is similar to the film layer structure of a normal display panel. The similarity of the film layer structure can be referred to as similar film layer sequence, not similar pixel size. In addition, the array substrate 11b and the second substrate 12b can be differentiated in design. For example, the array substrate 11b is designed with a touch metal layer, while the second substrate 12b does not need to be designed with a touch metal layer.

[0051] Reference Figure 2 As shown, the display box 11 includes a plurality of display pixel regions 110, each display pixel region 110 is provided with a pixel, each pixel includes three sub-pixels 110a, and the three sub-pixels can be a red sub-pixel, a green sub-pixel and a blue sub-pixel, respectively. Figure 2 The pattern filled in each sub-pixel is different; the light control box 12 has a plurality of dimming pixel areas 120, and the dimming pixel area 120 includes at least two dimming sub-pixels 130. In the direction perpendicular to the plane where the display panel 1 is located, one dimming pixel area 120 can cover one display pixel area 110, one dimming pixel area 120 can also cover two display pixel areas 110, and one dimming pixel area 120 can also cover more than two display pixel areas 110, which is not limited; the light control box 12 is configured to adjust the transmittance of light passing through each dimming pixel area 120 and projecting toward the display box 11, that is, the light control box 12 has a local dimming function, so that the display image of the display box 11 has a higher contrast;

[0052] Reference Figure 4 As shown, along the direction perpendicular to the plane where the display panel 1 is located, the display module 100 includes a display area 3, and the display area 3 includes a corresponding first area 31 and a second area 32; taking a direct-type backlight module as an example, the direct-type backlight module is divided into four local dimming areas 2a for example, and the first area 31 in the display area 3 can be each local dimming area 2a corresponding to the direct-type backlight module, and the second area 32 can be located between adjacent first areas 31, corresponding to the boundary line 2b of two adjacent local dimming areas 2a;

[0053] The light control box 12 further includes a black matrix layer 13, which may be a grid-like structure. The black matrix layer 13 includes a dimming sub-pixel opening 130 and a shading strip 131 arranged around the dimming sub-pixel opening 130. The shading strip 131 is used to control light emission. The light emitted by the backlight module 2 can be emitted to the light-emitting side of the display box 11 through the dimming sub-pixel opening 130 and received by the human eye, thereby realizing display. The shading strip 131 includes a first sub-shading strip 1310, which extends along a first direction X and is arranged along a second direction Y. The first direction X is the extension direction of the data line, and the second direction Y intersects with the first direction X. Optionally, the second direction Y is perpendicular to the first direction X.

[0054] Combination Figure 2 and Figure 4 As shown, taking the direct-type backlight module as an example, along the second direction Y, the line width of the first sub-light-shielding strip 1310 in the first area 31 is different from the line width of the first sub-light-shielding strip 1310 in the second area 32, and the first sub-light-shielding strip 1310 includes a first side 1310a and a second side 1310b opposite to each other, and the line width is the distance between the first side 1310a and the second side 1310b in the first sub-light-shielding strip 1310 along the second direction Y; if the first sub-light-shielding strip 1310 in the first area 31 corresponds to the local dimming area 2a, and the first sub-light-shielding strip 1310 in the second area 32 corresponds to the dividing line 2b, the above-mentioned solution is adopted, by adjusting the line width of the first sub-light-shielding strip 1310 in the first area 31 and the line width of the first sub-light-shielding strip 1310 in the second area 32. The line width of the first sub-light-shielding strip 1310 can not only block the light crosstalk between adjacent local dimming areas 2a in the backlight module 2, but also when the light control box 12 is bonded to the display box 11, due to the different line widths of the first sub-light-shielding strip 1310 corresponding to at least part of the first area 31 and the second area 32 in the light control box 12, the line widths of some black matrices in the display panel 11 and the control panel 12 are inconsistent, which can improve the interference phenomenon between some black matrix stripes in the light control box 12 and the display box 11, thereby improving some moiré patterns and further improving the display uniformity of the display module 100. Optionally, the line width of the first sub-light-shielding strip 1310 in the second area 32 can be the same as the line width of the dividing line 2b.

[0055] Combination Figure 5 and Figure 6As shown, taking the edge-entry backlight module as an example, it has been explained in detail above that the luminous uniformity of the edge-entry backlight module is determined by the dots of the light source 2c and the light guide plate 2d. Specifically, since the distance between the light source and the dots on the light guide plate increases from near to far, the luminous intensity on the side close to the light source is greater than the luminous intensity on the side far from the light source, that is, the luminous intensity on the side far from the light source is weakened, which causes uneven brightness in the display module and affects the overall display effect of the display module. Therefore, by adjusting the area of ​​the dimming sub-pixel opening 130 in the first zone 31 along the second direction Y, such as reducing the area of ​​the dimming sub-pixel opening 130 in the first zone 31 on the side close to the light source 2c and increasing the area of ​​the dimming sub-pixel opening 130 in the first zone 31 on the side far from the light source 2c, the transmittance on the side close to the light source can be reduced and the transmittance on the side far from the light source can be increased, thereby improving the display uniformity of the display module 100 and further improving the overall display effect of the display module.

[0056] Combination Figure 2 , Figure 5 and Figure 6 As shown, taking the edge-type backlight module as an example, the first area 31 may correspond to the area of ​​at least two adjacent columns of dimming sub-pixels 130, and the second area 32 may be located between adjacent first areas 31. Along the second direction Y, the line width of the first sub-light-shielding strip 1310 in the first area 31 is different from the line width of the first sub-light-shielding strip 1310 in the second area 32. The first sub-light-shielding strip 1310 includes a first side 1310a and a second side 1310b opposite to each other, and the line width is the spacing between the first side 1310a and the second side 1310b in the first sub-light-shielding strip 1310 along the second direction Y. By adopting the above scheme, by adjusting the first sub-light-shielding strips 1310 in the first area 31 and the second area 32, The line width of 1310 makes the first sub-light-shielding strip 1310 in the first area 31 and the second area 32 different. Since the first sub-light-shielding strip 1310 in the first area 31 and the second area 32 are different, the line widths of some black matrices in the display panel 11 and the control panel 12 are inconsistent, thereby improving some moiré phenomena and further improving display uniformity. On the basis of adjusting the line widths of the first sub-light-shielding strip 1310 in the first area 31 and the second area 32, along the second direction Y, the areas of the dimming sub-pixel opening 130 in the first area 31 are different. By adjusting the area of ​​the dimming sub-pixel opening 130 in the first area 31, the display uniformity of the display module 100 is more effectively improved.

[0057] It can be seen from the above embodiments that the display module 100 provided in this embodiment achieves at least the following beneficial effects:

[0058] The display module 100 provided in this embodiment includes a display panel 1 and a backlight module 2 which are arranged opposite to each other. The backlight module 2 is located at the light incident side of the display panel 1. The display panel 1 includes a display box 11 and a light control box 12 which are arranged opposite to each other. The display box 11 has a plurality of display pixel areas 110. The light control box 12 has a plurality of dimming pixel areas 120. The dimming pixel area 120 includes at least two dimming sub-pixels 130. In a direction perpendicular to the plane where the display panel 1 is located, one dimming pixel area 120 covers at least one dimming sub-pixel. The display module 100 includes a display area 3 along a direction perpendicular to the plane where the display panel 1 is located, and the display area 3 includes a corresponding first area 31 and a second area 32; the light control box 12 also includes a black matrix layer 13, the black matrix layer 13 includes a dimming sub-pixel opening 130 and a shading strip 131 arranged around the dimming sub-pixel opening 130, and the shading strip 131 includes a first sub-shading strip 1310, and the first sub-shading strip 1310 extends along the first direction X and is arranged along the second direction Y, and the first direction X is the extension direction of the data line, and the second direction Y intersects with the first direction X; along the second direction Y, the line width of the first sub-light-shielding strip 1310 in the first area 31 is different from the line width of the first sub-light-shielding strip 1310 in the second area 32, and the first sub-light-shielding strip 1310 includes a first side 1310a and a second side 1310b opposite to each other, and the line width is the spacing between the first side 1310a and the second side 1310b in the first sub-light-shielding strip 1310 along the second direction Y; and / or, along the second direction Y, the adjustment The areas of the photon pixel openings 130 are different. The above scheme can not only block the light crosstalk between adjacent local dimming areas 2a in the backlight module 2, but also when the light control box 12 and the display box 11 are bonded together, since the line widths of the corresponding first sub-light-shielding strips 1310 in at least part of the first area 31 and the second area 32 in the light control box 12 are different, the interference phenomenon between some black matrix stripes in the light control box 12 and the display box 11 can be improved, thereby improving some moiré patterns and further improving the display uniformity of the display module 100.

[0059] In some optional embodiments, continue to refer to Figure 3-Figure 4 As shown, along the second direction Y, the line width of the first sub-light-shielding strip 1310 in the first area 31 is smaller than the line width of the first sub-light-shielding strip 1310 in the second area 32 .

[0060] Specifically, refer to Figure 4 As shown, this embodiment only takes a direct-type backlight module as an example, and the direct-type backlight module can be divided into four local dimming areas 2a. Of course, the direct-type backlight module can also be divided into more local dimming areas 2a according to actual conditions. This embodiment does not make specific limitations. This embodiment only takes four local dimming areas 2a as an example;

[0061] In this embodiment, the first area 31 corresponds to the local dimming area 2a, and the second area 32 corresponds to the boundary line 2b between two adjacent local dimming areas 2a. In the light control box 12, the line width of the first sub-light shielding strip 1310 in the second area 32 is greater than the line width of the first sub-light shielding strip 1310 in the first area 31, so as to prevent light crosstalk between two adjacent local dimming areas 2a in the direct-type backlight module along the second direction Y.

[0062] Since along the second direction Y, the line width of the first sub-light-shielding strip 1310 in the first zone 31 is smaller than the line width of the first sub-light-shielding strip 1310 in the second zone 32, the line widths of the first sub-light-shielding strips 1310 in at least part of the first zone 31 and the second zone 32 in the light control box 12 are different. When the light control box 12 is attached to the display box 11, since the line widths of the first sub-light-shielding strips 1310 in at least part of the first zone 31 and the second zone 32 in the light control box 12 are different, the line widths of some black matrices in the display panel 11 and the control panel 12 are inconsistent, thereby improving the interference phenomenon between some black matrix stripes in the light control box 12 and the display box 11, and further improving some moiré patterns.

[0063] Based on the direct-type backlight module, the inventor further conducted the following research. Usually, the size of the LED light-emitting unit in the local dimming area and the spacing between adjacent LED light-emitting units are consistent, while the distance between the LED light-emitting unit closest to the edge and the edge of the direct-type backlight module is greater than the spacing between adjacent LED light-emitting units. Therefore, the LED light-emitting unit closest to the edge needs to illuminate a larger area. If the edge dimming sub-pixel opening and the middle dimming sub-pixel opening in the light control box are the same, the transmittance of the edge dimming sub-pixel opening will be insufficient, resulting in the edge position in the light control box being darker than the center position, which in turn causes uneven display.

[0064] In some optional embodiments, Figure 7 This is a simplified structural diagram of another light control box and backlight module provided by the present invention; Figure 7 As shown, in this embodiment, the backlight module 2 includes a middle light-emitting area 21 and an edge light-emitting area 22 surrounding the middle light-emitting area 21, and the light-control box 12 includes a middle light-control area 121 corresponding to the middle light-emitting area 21 and an edge light-control area 122 corresponding to the edge light-emitting area 22;

[0065] Along the first direction X, part of the first sub-shading strip 1310 in the first area 31 includes a first part 1310c and a second part 1310d connected to the first part 1310c, the first part 1310c is located in the middle light control area 121, and the second part 1310d is located in the edge light control area 122, and along the second direction Y, the line width of the first part 1310c is greater than the line width of the second part 1310d.

[0066] Specifically, continue to refer to Figure 7As shown, the backlight module 2 includes a middle light-emitting area 21 and an edge light-emitting area 22 surrounding the middle light-emitting area 21, wherein the middle light-emitting area 21 can be located in the middle area of ​​the backlight module 2, and the edge light-emitting area 22 can be located in the peripheral edge area of ​​the backlight module 2; the light-control box 12 includes a middle light-control area 121 corresponding to the middle light-emitting area 21 and an edge light-control area 122 corresponding to the edge light-emitting area 22, wherein the edge light-control area 122 can correspond to the peripheral edge area of ​​the backlight module 2;

[0067] Along the first direction X, part of the first sub-light-shielding strip 1310 in the first area 31 includes a first portion 1310c and a second portion 1310d, the first portion 1310c is connected to the second portion 1310d, the first portion 1310c is located in the middle light-control area 121, and the second portion 1310d is located in the edge light-control area 122. Along the second direction Y, the line width of the first portion 1310c is greater than the line width of the second portion 1310d. By adopting the above solution, the dimming sub-image of the edge light-control area 122 is increased by reducing the line width of the second portion 1310d. The pixel opening 130 is reduced by increasing the line width of the first part 1310c to reduce the dimming sub-pixel opening 130 of the middle light control area 121, thereby minimizing the difference between the light emitted by the backlight module 2 passing through the edge light control area 122 and the middle light control area 121, that is, increasing the transmittance of the edge light control area 122. It can be understood that the transmittance of the edge position is increased, thereby improving the phenomenon that the edge position in the light control box 12 is darker than the middle position, which is beneficial to improving the uniformity of the light emission of the backlight module 2, and then improving the uniformity of the display of the display module 100.

[0068] On the basis that the line width of the first sub-light-shielding strip 1310 in the first zone 31 of the light control box 12 is smaller than the line width of the first sub-light-shielding strip 1310 in the second zone 32, since the line widths of the first portion 1310c and the second portion 1310d in at least part of the first sub-light-shielding strip 1310 are also different, the line widths of the first sub-light-shielding strip 1310 in at least part of the first zone 31 of the light control box 12 are different. When the light control box 12 is attached to the display box 11, since the line widths of the first sub-light-shielding strips in at least part of the first zone 31 and the second zone 32 of the light control box and the line widths of the first portion 1310c and the second portion 1310d of the first sub-light-shielding strip 1310 in at least part of the first zone 31 are different, the line widths of the black matrices in the display panel 11 and the control panel 12 are inconsistent, which can effectively improve the interference phenomenon between the black matrix stripes in the light control box 12 and the display box 11, thereby effectively improving the moiré phenomenon.

[0069] In some optional embodiments, continue to refer to Figure 7 As shown, the shading strip 131 further includes a second sub-shading strip 1311 extending along the second direction Y and arranged along the first direction X, and a grid structure is formed between the second sub-shading strip 1311 and the first sub-shading strip 131;

[0070] Along the first direction X, the line width of the second sub-shading strip 1311 in the first area 31 is smaller than the line width of the second sub-shading strip 1311 in the second area 32, the second sub-shading strip 1311 includes a third side 1311a and a fourth side 1311b opposite to each other, and the line width is the spacing between the third side 1311a and the fourth side 1311b in the second sub-shading strip 1311 along the first direction X; adopting the above scheme, by adopting the above scheme, along the first direction X, the line width of the second sub-shading strip 1311 in the first area 31 is smaller than the line width of the second sub-shading strip 1311 in the second area 3 2, along the first direction X, the line width of the second sub-light shielding strip 1311 in the second area 32 corresponds to the boundary line 2b between two adjacent local dimming areas 2a, because along the second direction Y, the line width of the first sub-light shielding strip 1310 in the second area 32 is greater than the line width of the first sub-light shielding strip 1310 in the first area 31, therefore, along the first direction X and the second direction Y, it is possible to effectively block the light crosstalk between two adjacent local dimming areas 2a in the direct-type backlight module;

[0071] On the basis that the line width of the first sub-light-shielding strip 1310 in the first area 31 in the second direction Y is smaller than the line width of the first sub-light-shielding strip 1310 in the second area 32, the line widths of the second sub-light-shielding strip 1311 in at least part of the first area 31 and the second area 32 in the light control box 12 are also different. When the light control box 12 is attached to the display box 11, along the first direction X and the second direction Y, the design rules of the black matrix in the light control box 12 and the display box 11 are inconsistent, which can more effectively improve the interference phenomenon between the black matrix stripes in the light control box 12 and the display box 11, thereby more effectively improving the moiré pattern.

[0072] It should be noted that conventional dual-screen display modules use an improved diffusion film to improve the moiré phenomenon, which is relatively expensive. However, in the present application, after the light control box is improved, for example, the line width of the first sub-light-shielding strip 1310 in the first area 31 in the second direction Y is different from the line width of the first sub-light-shielding strip 1310 in the second area 32, the line width of the second sub-light-shielding strip 1311 in at least part of the first area 31 and the second area 32 is different, and / or the line width of the first part 1310c and the second part 1310d in at least part of the first sub-light-shielding strip 1310 are different; the diffusion film can be directly removed according to actual needs, thereby saving a diffusion film, saving costs and reducing the overall display module thickness. Of course, according to actual needs, a diffusion film of ordinary design can also be directly used, which is also beneficial to saving costs, and no specific limitation is made to this.

[0073] In some optional embodiments, continue to refer to Figure 7As shown, the second area 32 is located between the adjacent first areas 31, and along the first direction X, the line width of the second sub-light-shielding strip 1311 in the first area 31 close to the second area 32 is greater than the line width of the second sub-light-shielding strip 1311 in the first area 31 far from the second area 32. That is to say, on the basis that the line width of the second sub-light-shielding strip 1311 in the first area 31 is less than the line width of the second sub-light-shielding strip 1311 in the second area 32 along the first direction X, the line width of the second sub-light-shielding strip 1311 in the first area 31 close to the second area 32 and the line width of the second sub-light-shielding strip 1311 in the first area 31 far from the second area 32 are further adjusted, and the line width of the second sub-light-shielding strip 1311 in the first area 31 close to the second area The line width of the second sub-light-shielding strip 1311 in the first zone 32 is greater than the line width of the second sub-light-shielding strip 1311 in the first zone 31 away from the second zone 32, so that the line width of the second sub-light-shielding strip 1311 in at least part of the first zone 31 in the light control box 12 is different. When the light control box 12 is attached to the display box 11, due to the different line width of the first sub-light-shielding strip 1310 in at least part of the first zone 31 in the light control box 12, the design rules of the black matrix layer 13 in the light control box 12 and the display box 11 are more inconsistent, which can more effectively improve the interference phenomenon between the black matrix stripes in the light control box 12 and the display box 11, thereby more effectively improving the moiré pattern, and then improving the display uniformity.

[0074] Optionally, continue to refer to Figure 7 As shown, the backlight module 2 includes a middle light-emitting area 21 and an edge light-emitting area 22 surrounding the middle light-emitting area 21, and the light-control box 12 includes a middle light-control area 121 corresponding to the middle light-emitting area 21 and an edge light-control area 122 corresponding to the edge light-emitting area 22; along the first direction X, part of the first sub-light-shielding strip 1310 in the first area 31 includes a first portion 1310c and a second portion 1310d connected to the first portion 1310c, the first portion 1310c is located in the middle light-control area 121, the second portion 1310d is located in the edge light-control area 122, and along the second direction Y, the first The line width of the portion 1310c is greater than the line width of the second portion 1310d. Based on this solution, along the first direction X, the line width of the second sub-light-shielding strip 1311 in the first area 31 close to the second area 32 is greater than the line width of the second sub-light-shielding strip 1311 in the first area 31 far from the second area 32. The dimming sub-pixel opening 130 of the edge light-emitting area 22 in the light control box 12 can be further increased, and the transmittance of the edge light-emitting area 22 can be increased, thereby more effectively improving the phenomenon that the edge position in the light control box 12 is darker than the center position, and is further conducive to improving the backlight uniformity in the direct-type backlight module.

[0075] Figure 8 It is a structural schematic diagram of a special-shaped backlight module provided by the prior art; Figure 8As shown, the emergence of the special-shaped display module 2' breaks through the limitation of the single rectangular structure of the display module, which not only makes the display effect more diversified, but also makes the application of the display module more and more extensive. When the special-shaped display module 2' is applied to a liquid crystal display device, its corresponding backlight module will also present a special-shaped structure. For the special-shaped backlight module 2', the special-shaped backlight module 2' has a special-shaped edge 4', and the spacing between the lamp beads on the side closest to the frame in the local dimming area is not equal to the spacing between the frame. For example, the spacing between the lamp beads on the side close to the special-shaped edge and the frame is the smallest, while the spacing between the lamp beads on the side far from the special-shaped edge and the frame is the largest, such as d1>d2>d3>d4>d5, which easily leads to uneven brightness at the special-shaped edge position, affecting the display effect of the display module.

[0076] In some optional embodiments, Fig. 9 This is a simplified structural diagram of another light control box provided by the present invention in cooperation with a backlight module; Fig. 9 As shown, along a direction perpendicular to the plane where the display panel 1 is located, the display module 100 has a profiled edge 4 , and along the second direction Y, the second area 32 is located between the first area 31 and the profiled edge 4 .

[0077] In this embodiment, along the direction perpendicular to the plane where the display panel 1 is located, the display module 100 has a shaped edge 4, the display box, the light control box 12 and the backlight module all have corresponding shaped edges 4, along the second direction Y, the second area 32 is located between the first area 31 and the shaped edge 4, in the shaped backlight module, the spacing from the lamp beads on the side close to the shaped edge 4 to the frame is smaller than the spacing from the lamp beads on the side away from the shaped edge 4 to the frame, such as d1>d2>d3>d4>d5, therefore, in order to solve the above problem, the line width of the first sub-shading strip 1310 in the second area 32 is different from the line width of the first sub-shading strip 1310 in the first area 31, optionally, the line width of the first sub-shading strip 1310 in the second area 32 is greater than that of the first area The line width of the first sub-shading strip 1310 in 31 is the smallest between the lamp bead and the frame on the side close to the special-shaped edge 4, such as d5. By increasing the line width of the first sub-shading strip 1310 in the second area 32, the dimming sub-pixel opening 130 in the second area 32 is reduced, and the line width of the first sub-shading strip 1310 in the first area 31 is reduced to increase the dimming sub-pixel opening 130 in the first area 31, thereby balancing the light transmittance in the first area 31 and the second area 32, so that the luminous flux per unit area of ​​the special-shaped edge area in the special-shaped backlight module is as similar as possible, thereby improving the display uniformity as much as possible. The luminous flux is the brightness emitted by the light source per unit time, which is equal to the effective equivalent of the radiation power (commonly known as radiation flux) that can be perceived by the human eye.

[0078] Optionally, continue to refer to Fig. 9As shown, the first area 31 includes at least two first sub-areas 310, and the second area 32 includes at least two second sub-areas 320. For example, the first area 31 includes three first sub-areas 310, and the second area 32 includes two second sub-areas 320. Of course, the first area 31 may also include two first sub-areas 310, and the second area 32 may also include three second sub-areas 320. The number of the first sub-areas 310 and the second sub-areas 320 may be adjusted according to actual conditions, and is not limited here. This embodiment is only described by taking the first area 31 including three first sub-areas 310 and the second area 32 including two second sub-areas 320 as an example;

[0079] Along the direction from the display area 3 to the irregular edge 4, the line width of the first sub-shading strip 1310 in the adjacent first sub-area 310 gradually increases, and the line width of the first sub-shading strip 1310 in the adjacent second sub-area 320 gradually increases. That is to say, the line width of the first sub-shading strip 1310 in the adjacent first sub-area 310 is gradual, and the line width of the first sub-shading strip 1310 in the adjacent second sub-area 320 is also gradual, so that the luminous flux per unit area of ​​the local dimming area 2a in the irregular backlight module is more uniform, thereby providing a more uniform light source 2c for the display module 100, improving the brightness uniformity of the display device, and improving the display effect of the display device.

[0080] Optionally, continue to refer to Fig. 9 As shown, along the direction from the display area 3 to the irregular edge 4, the first sub-shading strips 1310 in at least part of the first sub-area 310 are all the same, so that at least part of the dimming sub-pixel openings 130 in the first sub-area 310 remain consistent, which is beneficial to display uniformity in at least part of the first sub-area 310, and the first sub-shading strips 1310 in at least part of the second sub-area 320 are all the same, so that at least part of the dimming sub-pixel openings 130 in the second sub-area 320 remain consistent, which is beneficial to display uniformity in at least part of the second sub-area 320. In addition, the difficulty of making the mask can be simplified, thereby saving the cost of making the mask.

[0081] It should be noted that: Fig. 9 The number and size of LED lamp beads in the backlight module 2 are only for illustration. The relationship between the size of the LED lamp beads in the backlight module 2 and the sub-pixels in the light control box 12 can be: the size of the LED lamp beads in the backlight module 2 can correspond to at least two sub-pixel opening areas, and there is no limitation on this.

[0082] In some optional embodiments, Fig.10 This is a simplified structural diagram of another light control box provided by the present invention in cooperation with a backlight module; Fig.11 yes Fig.10 A-A' cross-sectional view; combined Fig.10 and Fig.11As shown, in this embodiment, the backlight module 2 includes a first light-emitting unit 23 and a second light-emitting unit 24. The light-emitting wavelength of the first light-emitting unit 23 is greater than the light-emitting wavelength of the second light-emitting unit 24. The first light-emitting unit 23 can be a red light-emitting unit, and the light-emitting wavelength of the red light-emitting unit is in the range of 622 to 760 nm; the second light-emitting unit 24 can be a blue light-emitting unit, and the light-emitting wavelength of the blue light-emitting unit is in the range of 435 to 450 nm. The second light-emitting unit 24 can also be a green light-emitting unit with a light-emitting wavelength in the range of 492 to 577 nm.

[0083] The area of ​​the dimming sub-pixel opening 130 corresponding to the first light-emitting unit 23 in the first zone 31 is larger than the area of ​​the dimming sub-pixel opening 130 corresponding to the second light-emitting unit 24 in the first zone 31. Although the light emission wavelength of the red light-emitting unit is higher than that of the blue light-emitting unit or the green light-emitting unit, the red light-emitting unit is limited by the characteristics of the material itself, resulting in insufficient luminous efficiency. The luminous efficiency of the blue light-emitting unit and the green light-emitting unit are not much different. The brightness of the first light-emitting unit 23 is improved by increasing the area of ​​the dimming sub-pixel opening 130 corresponding to the first light-emitting unit 23 in the first zone 31, that is, increasing the transmittance of the first light-emitting unit 23.

[0084] In some optional embodiments, Fig.12 This is a simplified structural diagram of another light control box provided by the present invention in cooperation with a backlight module; Fig.13 This is a simplified structural diagram of another light control box provided by the present invention in cooperation with a backlight module; Fig.12 and Fig.13 As shown, in this embodiment, the light control box 12 further includes a data line 123, and the data line 123 provides a data signal to the dimming sub-pixel 130. The data line 123 in the first area 31 extends along the first direction X and is arranged along the second direction Y. The data line 123 in the second area 32 extends along the first direction X.

[0085] Along the second direction Y, the line width of the data line 123 in the first area 31 is smaller than the line width of the data line 123 in the second area 32, and the data line 123 corresponds to the first sub-shading strip 1310 up and down. The first sub-shading strip 1310 is marked with a dotted line. Figure 3 and Fig.13As shown, the light emitted by the backlight module 2 first passes through the second substrate 12b, the data line 123 is located on the side of the second substrate 12b close to the first substrate 12a, and then passes through the first substrate 12a to be emitted to the display box 11, the first sub-light shielding strip 1310 is located on the side of the first substrate 12a close to the second substrate 12b, and on the basis that the line width of the first sub-light shielding strip 1310 in the second area 32 along the second direction Y is greater than the line width of the first sub-light shielding strip 1310 in the first area 31, the line width of the data line 123 in the first area 31 along the second direction Y is smaller than the line width of the data line 123 in the second area 32, which can more effectively avoid interference between two adjacent local dimming areas 2a along the second direction Y, and improve the brightness uniformity of the display device. Optionally, the line width of the data line 123 in the first area 31 is the same as the line width of the first sub-light shielding strip 1310 in the first area 31.

[0086] It should be noted that the light control box 12 further includes a thin film transistor (not shown in the figure), and the dimming sub-pixel 130 is electrically connected to the data line 123 of the adjacent thin film transistor through the thin film transistor, wherein the thin film transistor includes a gate, an active layer, a drain and a source 123a, the gate and the scan line are located in the same layer and are electrically connected, the gate and the active layer are separated by an insulating layer, the source is electrically connected to the data line 123, and the drain is electrically connected to the dimming sub-pixel 130 through a via hole. Fig.13 The backlight module 2 is located below the light control box 12, and the backlight module 2 corresponds to the light control box 12. Fig.13 This shows that the first light-shielding sub-strip 1310 in the first region 31 corresponds to the source electrode 123 a . Fig.13 The middle backlight module 2 is designed with a plurality of LED lamp beads, which are not marked in the figure.

[0087] In some optional embodiments, continue to refer to Fig.12 As shown, in this embodiment, the light control box 12 further includes a gate line 124, the gate line 124 provides a scanning signal for the dimming sub-pixel 130, and the gate line 124 crosses and insulates with the data line 123 to define the dimming sub-pixel 130; the gate lines 124 in the first area 31 and the second area 32 both extend along the second direction Y;

[0088] Along the first direction X, the line width of the gate line 124 in the first area 31 is smaller than the line width of the gate line 124 in the second area 32, and the gate line 124 corresponds to the second sub-shading strip 1311 up and down. Figure 3 and Fig.12As shown, the light emitted by the backlight module 2 first passes through the second substrate 12b, the gate line 124 is located on the side of the second substrate 12b close to the first substrate 12a, and then passes through the first substrate 12a to be emitted to the display box 11, and the second sub-light shielding strip 1311 is located on the side of the first substrate close to the second substrate. On the basis that the line width of the data line 123 in the first area 31 along the second direction Y is smaller than the line width of the data line 123 in the second area 32, the line width of the gate line 124 in the first area 31 along the first direction X is smaller than the line width of the gate line 124 in the second area 32, which can more effectively avoid interference between two adjacent local dimming areas 2a along the second direction Y, and improve the brightness uniformity of the display device. Optionally, the line width of the gate line 124 in the first area 31 is the same as the line width of the second sub-light shielding strip 1311 in the first area 31.

[0089] In some optional embodiments, Fig.14 It is a structural schematic diagram of another light control box provided by the present invention; Figure 5 As shown, the backlight module 2 is an edge-entry backlight module, which includes a light source 2c. The light source 2c can emit light by using a blue light-emitting unit to excite yellow phosphor. The light uniformity of the edge-entry backlight module is determined by the light source 2c and the grid points on the light guide plate 2d. However, since the distance between the light source and the grid points on the light guide plate increases from near to far, the light intensity on the side close to the light source is greater than the light intensity on the side far from the light source, that is, the light intensity on the side far from the light source is weakened, which causes the display module to have uneven brightness, affecting the overall display effect of the display module. Based on this problem, combined with Figure 5 and Fig.14 As shown, when the areas of the dimming sub-pixel openings 130 in the first zone 31 are different along the second direction Y, the area of ​​the dimming sub-pixel openings 130 on the side close to the light source 2c in the first zone 31 of this embodiment is smaller than the area of ​​the dimming sub-pixel openings 130 on the side away from the light source 2c in the first zone 31. By adjusting the area of ​​the dimming sub-pixel openings 130 on the side close to the light source 2c in the first zone 31 and the area of ​​the dimming sub-pixel openings 130 on the side away from the light source 2c in the first zone 31, such as reducing the area of ​​the dimming sub-pixel openings 130 on the side close to the light source 2c in the first zone 31 and increasing the area of ​​the dimming sub-pixel openings 130 on the side away from the light source 2c according to the position of the light source 2c, the display difference between the side close to the light source 2c and the side away from the light source 2c can be minimized as much as possible, so that the backlight emitted by the edge-entry backlight module is kept as consistent as possible, thereby improving the display uniformity of the display module 100, and further enhancing the overall display effect of the display module.

[0090] Optionally, along the second direction Y, the line widths of the first sub-light-shielding strips 1310 in each first region 31 are the same, which can simplify the difficulty of manufacturing the mask, thereby saving the manufacturing cost of the mask.

[0091] In some optional embodiments, combined with Figure 5 and Fig.14 As shown, along the direction from the light source 2c to the side away from the light source 2c, the area of ​​the dimming sub-pixel opening 130 in the adjacent first zone 31 gradually increases. It can be understood that along the direction from the light source 2c to the side away from the light source 2c, the area of ​​the dimming sub-pixel opening 130 in the adjacent first zone 31 is gradually designed, so that the backlight emitted by the edge-entry backlight module is more uniform, further improving the display uniformity of the display module 100.

[0092] Optionally, combined Figure 5 and Fig.14 As shown, when the areas of the dimming sub-pixel openings 130 in the first zone 31 are different along the second direction Y, the line width of the first sub-light-shielding strip 1310 in the first zone 31 is the same as the line width of the first sub-light-shielding strip 1310 in the second zone 32 in the direction from the side close to the light source 2c to the side away from the light source 2c. By adopting the above scheme, there is no need to change the mask width along the second direction Y, which simplifies the difficulty of mask production and saves the mask production cost.

[0093] In some optional embodiments, combined with Figure 5 and Figure 6 As shown, along the direction from the light source 2c to the side away from the light source 2c, the line widths of the first sub-light shielding strips 1310 in the adjacent first areas 31 are different. By changing the line widths of the first sub-light shielding strips 1310 in the adjacent first areas 31 in the light control box 12, the irregularities of the black matrix design of the light control box 12 and the black matrix design of the display box 11 are combined with Figure 2 As shown, when the display box 11 and the light control box 12 are bonded together, since the line widths of the black matrix of the light control box 12 and the black matrix of the display box 11 are inconsistent, the interference phenomenon between the black matrix of the light control box 12 and the black matrix of the display box 11 can be improved, thereby improving the moiré phenomenon and further improving the display uniformity.

[0094] Optionally, continue to refer to Figure 6 As shown, along the direction from the light source 2c to the side away from the light source 2c, the line width of the first sub-shading strip 1310 in the adjacent first area 31 gradually decreases, and along the direction from the light source 2c to the side away from the light source 2c, the line width of the first sub-shading strip 1310 in the adjacent first area 31 changes gradually. The irregular line width of the first sub-shading strip 1310 can more effectively improve the moiré pattern while making the backlight emitted by the edge-entry backlight module more uniform, thereby further improving the display uniformity of the display module 100.

[0095] Based on the same inventive principle, the present invention also provides a display device, Fig.15 is a schematic diagram of the structure of a display device provided by the present invention, such as Fig.15As shown, the display device includes any display module 100 provided by the present invention. The display device provided by the embodiment of the present invention can be any electronic product with a display function, including but not limited to the following categories: televisions, laptops, desktop displays, tablet computers, digital cameras, mobile phones, smart bracelets, smart glasses, car displays, medical equipment, industrial control equipment, touch interactive terminals, etc.

[0096] It can be seen from the above embodiments that the display module and display device provided by the present invention achieve at least the following beneficial effects:

[0097] The display module and display device provided by the present invention, the display module includes a display panel and a backlight module arranged opposite to each other, the backlight module is located on the light incident side of the display panel, the display panel includes a display box and a light control box arranged opposite to each other; the display box has a plurality of display pixel areas, the light control box has a plurality of dimming pixel areas, the dimming pixel area includes at least two dimming sub-pixels, along the direction perpendicular to the plane where the display panel is located, one dimming pixel area covers at least one display pixel area; along the direction perpendicular to the plane where the display panel is located, the display module includes a display area, the display area includes a corresponding first area and a second area; the light control box also includes a black matrix layer, the black matrix layer includes a dimming sub-pixel opening and a shading strip arranged around the dimming sub-pixel opening, the shading strip includes a first sub-shading strip, the first sub-shading strip extends along a first direction and along a second direction Arrangement, the first direction is the extension direction of the data line, and the second direction intersects with the first direction; along the second direction, the line width of the first sub-light-shielding strip in the first area is different from the line width of the first sub-light-shielding strip in the second area, the first sub-light-shielding strip includes a first side and a second side opposite to each other, and the line width is the spacing between the first side and the second side of the first sub-light-shielding strip along the second direction; and / or, along the second direction, the dimming sub-pixel opening areas in the first area are different. The above scheme can effectively block the interference between adjacent local dimming areas in the backlight module. When the light control box and the display box are bonded, since the line widths of the corresponding first sub-light-shielding strips in at least part of the first area and the second area in the light control box are different, the interference phenomenon between some black matrix stripes in the light control box and the display box can be improved, thereby improving some moiré patterns, and further improving the display uniformity of the display module.

[0098] Although some specific embodiments of the present invention have been described in detail by way of example, it will be appreciated by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present invention. It will be appreciated by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A display module, characterized in that: It comprises a display panel and a backlight module which are arranged oppositely, wherein the backlight module is located at the light incident side of the display panel, and the display panel comprises a display box and a light control box which are arranged oppositely; The display box has a plurality of display pixel areas, the light control box has a plurality of dimming pixel areas, the dimming pixel area includes at least two dimming sub-pixels, and along a direction perpendicular to the plane where the display panel is located, one dimming pixel area covers at least one display pixel area; The display module includes a display area, and the display area includes a corresponding first area and a second area; The light control box further includes a black matrix layer, the black matrix layer includes a dimming sub-pixel opening and a light shielding strip arranged around the dimming sub-pixel opening, the light shielding strip includes a first sub-light shielding strip, the first sub-light shielding strip extends along a first direction and is arranged along a second direction, the first direction is an extension direction of the data line, and the second direction intersects with the first direction; Along the second direction, the line width of the first sub-light-shielding strip in the first area is different from the line width of the first sub-light-shielding strip in the second area, the first sub-light-shielding strip includes a first side and a second side opposite to each other, and the line width is the spacing between the first side and the second side of the first sub-light-shielding strip along the second direction; and / or, Along the second direction, the dimming sub-pixel opening areas in the first area are different; Along the second direction, the line width of the first sub-light-shielding strip in the first area is smaller than the line width of the first sub-light-shielding strip in the second area; The shading strip further includes a second sub-shading strip extending along the second direction and arranged along the first direction; Along the first direction, the line width of the second sub-light-shielding strip in the first area is smaller than the line width of the second sub-light-shielding strip in the second area, and the second sub-light-shielding strip includes a third side and a fourth side opposite to each other, and the line width is the spacing between the third side and the fourth side of the second sub-light-shielding strip along the first direction.

2. The display module according to claim 1, characterized in that: The backlight module includes a middle light-emitting area and an edge light-emitting area surrounding the middle light-emitting area, and the light-control box includes a middle light-control area corresponding to the middle light-emitting area and an edge light-control area corresponding to the edge light-emitting area; Along the first direction, part of the first sub-light-shielding strip in the first area includes a first part and a second part connected to the first part, the first part is located in the middle light-control area, and the second part is located in the edge light-control area, and along the second direction, the line width of the first part is greater than the line width of the second part.

3. The display module according to claim 1, characterized in that: The second area is located between adjacent first areas, and along the first direction, the line width of the second sub-light-shielding strip in the first area close to the second area is greater than the line width of the second sub-light-shielding strip in the first area far from the second area.

4. The display module according to claim 1, characterized in that: Along a direction perpendicular to the plane where the display panel is located, the display module has a special-shaped edge, and along the second direction, the second area is located between the first area and the special-shaped edge.

5. The display module according to claim 4, characterized in that: The first region includes at least two first sub-regions, and the second region includes at least two second sub-regions; Along the direction from the display area to the irregular edge, the line width of the first sub-light-shielding strips in adjacent first sub-areas gradually increases, and the line width of the first sub-light-shielding strips in adjacent second sub-areas gradually increases.

6. The display module according to claim 1, characterized in that: The backlight module comprises a first light emitting unit and a second light emitting unit, wherein the light emission wavelength of the first light emitting unit is greater than the light emission wavelength of the second light emitting unit; An opening area of ​​the dimming sub-pixel corresponding to the first light-emitting unit in the first region is larger than an opening area of ​​the dimming sub-pixel corresponding to the second light-emitting unit in the first region.

7. The display module according to claim 1, characterized in that: The light control box further comprises a data line, the data line provides a data signal to the dimming sub-pixel, the data line in the first area extends along the first direction and is arranged along the second direction, and the data line in the second area extends along the first direction; Along the second direction, the line width of the data line in the first region is smaller than the line width of the data line in the second region.

8. The display module according to claim 7, characterized in that: The light control box further includes a gate line, and the gate line and the data line are crossed and insulated to define the dimming sub-pixel; the gate lines in the first area and the second area both extend along the second direction; Along the first direction, the line width of the gate line in the first region is smaller than the line width of the gate line in the second region.

9. The display module according to claim 1, characterized in that: The backlight module is an edge-type backlight module, which includes a light source. The dimming sub-pixel opening area in the first zone close to the light source is smaller than the dimming sub-pixel opening area in the first zone far from the light source.

10. The display module according to claim 9, characterized in that: Along the direction from the side close to the light source to the side far from the light source, the opening areas of the dimming sub-pixels in adjacent first areas gradually increase.

11. The display module according to claim 9, characterized in that: When the dimming sub-pixel opening areas in the first zone are different along the second direction, the line width of the first sub-light-shielding strip in the first zone is the same as the line width of the first sub-light-shielding strip in the second zone along the direction from the side close to the light source to the side away from the light source.

12. The display module according to claim 9, characterized in that: Along a direction from close to the light source to the side away from the light source, line widths of the first sub-light-shielding strips in adjacent first areas are different.

13. A display device, characterized in that: Comprising the display module described in any one of claims 1-12.

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