Display module and display device

Abstract

The present disclosure provides a display module and a display device, in which a light ray emitted by a light source in the display module can be transmitted through a color conversion film layer and an optical film material and enter a display panel, the optical film material is fixed to a film material fixing side, the side of the compensation structure facing the color conversion film layer includes a central region and a peripheral region surrounding the central region, an orthogonal projection of the central region onto a plane on which a light output surface of the display panel is located overlaps with a display region of the display panel, an orthogonal projection of the peripheral region onto a plane on which a light output surface of the display panel is located overlaps with a non-display region of the display panel at least partially, and a fluorescent material layer is provided in the peripheral region, the fluorescent material layer absorbs light rays from the light source and emits target light rays, and at least a part of the fluorescent material layer extends to the central region.

Description

[Technical field]

[0001] (CROSS REFERENCE TO RELATED APPLICATIONS) This disclosure claims priority to a Chinese patent application having application number 202111016285.4, filed in China on August 31, 2021, the entire contents of which are incorporated herein by reference.

[0002] The present disclosure relates to the field of display technology, and in particular to a display module and a display device. [Background technology]

[0003] Liquid crystal display modules (LCDs) are widely used in various fields due to their advantages such as low cost and high resolution. In some high-end fields, liquid crystal display modules usually adopt a color conversion film layer structure to achieve the high color gamut requirements of the liquid crystal display module. However, when a color conversion film layer structure is adopted, light rays biased to the color of the light source appear around the module, which leads to display defects around the liquid crystal display module. Summary of the Invention [Problem to be solved by the invention]

[0004] The present disclosure aims to provide a display module and a display device. [Means for solving the problem]

[0005] To achieve the above objectives, the present disclosure provides the following technical solutions:

[0006] According to a first aspect of the present disclosure, there is provided a display module, the display module including a film material fixing side and a non-film material fixing side, and further including a light source, a compensation structure, a color conversion film layer, an optical film material, and a display panel, which are sequentially stacked, and a light ray emitted by the light source can be transmitted through the color conversion film layer and the optical film material and enter the display panel; The optical film material is fixed to the film material fixing side, the compensation structure includes a central region and a peripheral region surrounding the central region on a side facing the color conversion film layer, an orthogonal projection of the central region onto a plane in which the light output surface of the display panel is located overlaps with the display region of the display panel, and an orthogonal projection of the peripheral region onto the plane in which the light output surface of the display panel is located at least partially overlaps with the non-display region of the display panel, a fluorescent material layer is provided in the peripheral region, the fluorescent material layer absorbs light rays from the light source and emits target light rays, at least a portion of the fluorescent material layer extends to the central region, and in a direction parallel to the display panel, a minimum width of the fluorescent material layer located on the film material fixing side in a direction perpendicular to the boundary of the adjacent central region is smaller than a minimum width of the fluorescent material layer located on the non-film material fixing side in a direction perpendicular to the boundary of the adjacent central region.

[0007] Optionally, the light source is: The light guide plate includes a light guide plate and a lamp bar, the light guide plate includes a first surface and a second surface facing each other, and a side surface located between the first surface and the second surface, the lamp bar is located on a side surface of the light guide plate, and light emitted by the lamp bar is incident on the light guide plate from the side surface of the light guide plate, the color conversion film layer is located on a first surface of the light guide plate, and the optical film material is located on a side of the color conversion film layer opposite the light guide plate; The compensation structure includes a reflective sheet located on a second surface of the light guide plate, and the fluorescent material layer is disposed on the peripheral area of ​​the reflective sheet.

[0008] Optionally, the light source includes a lamp plate, the lamp plate being located on an opposite side of the color conversion film layer from the optical film material, the lamp plate being multiplexed as the compensation structure.

[0009] Optionally, the fluorescent material layer includes a mixed material layer of ink and fluorescent powder, and the mass percentage of the ink and the fluorescent powder is 100 / 24.5 to 100 / 40.5.

[0010] Optionally, the mass percentage of the ink and the phosphor powder is 100 / 24.5 to 100 / 25.5.

[0011] Optionally, the thickness of the fluorescent material layer in a direction perpendicular to the color conversion film layer is 5 μm to 6 μm.

[0012] Optionally, the fluorescent material layer includes a fixed portion, the fixed portion being located on a fixed side of the film material, the fixed portion being located only in the peripheral region.

[0013] Optionally, the fluorescent material layer includes a non-fixed portion, the non-fixed portion being located on the non-film material fixed side, the non-fixed portion being located in the peripheral region and the central region.

[0014] Optionally, the shape of the display area includes a rectangular shape, and the outlines of the first surface and the second surface of the light guide plate are rectangular; the light guide plate includes a first side, a second side, a third side, and a fourth side that are adjacent to each other in sequence, the first side is located on the side where the film material is fixed, and the second side, the third side, and the fourth side are all located on the side where the film material is not fixed; The non-fixed side portion includes a second portion, a third portion and a fourth portion, the second portion being adjacent to the second side surface, the third portion being adjacent to the third side surface, and the fourth portion being adjacent to the fourth side surface.

[0015] Optionally, the shape of the display area is rectangular, the display area includes a long boundary and a wide boundary, the film material fixing side and the long boundary are located on the same side, and in the central area, the minimum width of the second portion is greater than the minimum width of the third portion, and the minimum width of the fourth portion is greater than the minimum width of the third portion.

[0016] Optionally, the layout density of the phosphor material layer decreases along a direction from the peripheral region towards the central region.

[0017] Optionally, the fixed-side portion includes a first layout region and a second layout region, The layout density m1 of the fixed-side portion in the first layout region satisfies m1≥80%, and the layout density m2 of the fixed-side portion in the second layout region satisfies 30%≤m2≤50%. The boundary of the second layout region adjacent to the central region overlaps with the boundary of the central region. The second layout region is located between the central region and the first layout region. The boundary of the second layout region away from the central region overlaps with the boundary of the first layout region adjacent to the central region.

[0018] Optionally, the third portion includes a third layout region, a fourth layout region, and a fifth layout region arranged in sequence. The layout density m3 of the third portion in the third layout region satisfies m3≥80%, the layout density m4 of the third portion in the fourth layout region satisfies 30%≤m4≤50%, and the layout density m5 of the third portion in the fifth layout region satisfies 15%≤m5≤25%. The minimum distance d1 between the orthographic projection of the boundary of the third layout region away from the central region on the light guide plate and the light guide boundary located on the same side as the third layout region in the light guide plate satisfies d1≤1.5mm. The minimum distance d2 between the orthographic projection of the boundary of the fourth layout region away from the central region on the light guide plate and the light guide boundary satisfies 1.5mm<d2≤5mm. The minimum distance d3 between the orthographic projection of the boundary of the fifth layout region away from the central region on the light guide plate and the light guide boundary satisfies 5mm<d3≤9mm.

[0019] Optionally, the second portion includes a sixth layout region, a seventh layout region, an eighth layout region, and a ninth layout region arranged in sequence. The layout density m6 of the second part in the sixth layout region satisfies m6≧80%, the layout density m7 of the second part in the seventh layout region satisfies 30%≦m7≦50%, the layout density m8 of the second part in the eighth layout region satisfies 15%≦m8≦25%, and the layout density m9 of the second part in the ninth layout region satisfies 5%≦m9<15%. The minimum distance d4 between the orthographic projection of the boundary away from the central region of the sixth layout region on the light guide plate and the light guide boundary located on the same side of the light guide plate as the sixth layout region satisfies d4≦1.5mm. The minimum distance d5 between the orthographic projection of the boundary away from the central region of the seventh layout region on the light guide plate and the light guide boundary satisfies 1.5mm<d5≦5mm. The minimum distance d6 between the orthographic projection of the boundary away from the central region of the eighth layout region on the light guide plate and the light guide boundary satisfies 5mm<d6≦9mm. The minimum distance d7 between the orthographic projection of the boundary away from the central region of the ninth layout region on the light guide plate and the light guide boundary satisfies 9mm<d7≦11mm. The layout methods of the fourth part and the second part are the same.

[0020] Optionally, the display module further includes a middle frame, and the middle frame is provided to surround at least the non-film material fixing side. The middle frame covers a part of the edge of the light guide plate. The color conversion film layer includes a失效 part, and on the non-film material fixing side, the orthographic projection of the失效 part on the light guide plate is located inside the orthographic projection of the middle frame on the light guide plate.

[0021] Optionally, in the direction parallel to the light guide plate, the minimum width of the失效 part is 1mm~1.5mm.

[0022] It should be noted that the term "失效 part" in the original text seems to be incorrect or unclear. You may need to check and correct it for a more accurate translation.Optionally, the optical film material includes a prism layer and a brightness enhancement film, the prism layer being located between the color conversion film layer and the brightness enhancement film, and on the non-film material fixed side, an orthogonal projection of the prism layer onto the color conversion film layer and / or an orthogonal projection of the brightness enhancement film onto the color conversion film layer does not overlap the expired portion.

[0023] Optionally, the display module further includes a middle frame, the middle frame including a first portion located on a side of the light guide plate and a second portion covering at least a part of an edge of the first surface, and a width X of a target portion of the fluorescent material layer satisfies X=X1+X2+X3; X1 is,

number

number

[0024] Optionally, in a direction parallel to the reflective surface of the reflective sheet and perpendicular to the boundary of the central area on the side on which the target portion is located, the maximum width of the middle portion is less than or equal to 8 mm.

[0025] Optionally, the light guide plate has a target boundary on a side on which the at least some edges are located, and in a direction parallel to the light guide plate and perpendicular to the target boundary, a width of the at least some edges is 10 mm or less.

[0026] Optionally, in said central region, the minimum width of said third portion is less than or equal to 4mm and the minimum width of said second portion and / or said fourth portion is less than or equal to 9mm.

[0027] Optionally, the lamp bar is located on the side fixed to the film material.

[0028] Optionally, the lamp bar includes a lamp bar capable of emitting blue light, the fluorescent material layer includes a yellow fluorescent material layer, and the color conversion film layer includes a red-green quantum dot film.

[0029] According to a second aspect of the present disclosure, there is provided a display module, the display module including a non-film material fixed side, and further including a light source, a compensation structure, a color conversion film layer, an optical film material, and a display panel, which are sequentially stacked, wherein light emitted by the light source can be transmitted through the color conversion film layer and the optical film material and enter the display panel; a side of the compensation structure facing the color conversion film layer includes a central region and a peripheral region surrounding the central region, an orthogonal projection of the central region onto a plane on which a light output surface of the display panel is located overlaps with a display region of the display panel, and an orthogonal projection of the peripheral region onto the plane on which the light output surface of the display panel is located at least partially overlaps with a non-display region of the display panel; a fluorescent material layer is provided in the peripheral region, the fluorescent material layer absorbs light rays from the light source and emits target light rays, and at least a portion of the fluorescent material layer extends to the central region; On the non-film material fixing side, there is a first distance between an orthogonal projection of a boundary of the optical film material onto a plane on which the display panel is located and an orthogonal projection of a boundary of the display area adjacent to the boundary of the optical film material onto the plane, and in a direction parallel to the plane, the fluorescent material layer has a first width in a direction perpendicular to the boundary of its adjacent central area, and the first width is negatively correlated with the first distance.

[0030] Optionally, the first width is inversely proportional to the first distance.

[0031] Optionally, the display module further includes a film material fixing side, and the optical film material is fixed to the film material fixing side; In a direction parallel to the display panel, the minimum width of the fluorescent material layer located on the film material fixing side in a direction perpendicular to the boundary of its adjacent central region is smaller than the minimum width of the fluorescent material layer located on the non-film material fixing side in a direction perpendicular to the boundary of its adjacent central region.

[0032] Optionally, the light source is: The light guide plate includes a light guide plate and a lamp bar, the light guide plate includes a first surface and a second surface facing each other, and a side surface located between the first surface and the second surface, the lamp bar is located on a side surface of the light guide plate, and light emitted by the lamp bar is incident on the light guide plate from the side surface of the light guide plate, the color conversion film layer is located on a first surface of the light guide plate, and the optical film material is located on a side of the color conversion film layer opposite the light guide plate; The compensation structure includes a reflective sheet located on a second surface of the light guide plate, and the fluorescent material layer is disposed on the peripheral area of ​​the reflective sheet.

[0033] Optionally, the light source includes a lamp plate, the lamp plate being located on an opposite side of the color conversion film layer from the optical film material, the lamp plate being multiplexed as the compensation structure.

[0034] Optionally, the fluorescent material layer includes a mixed material layer of ink and fluorescent powder, and the mass percentage of the ink and the fluorescent powder is 100 / 24.5 to 100 / 40.5.

[0035] Optionally, the thickness of the fluorescent material layer in a direction perpendicular to the color conversion film layer is 5 μm to 6 μm.

[0036] Optionally, the display module further includes a film material fixing side, and the optical film material is fixed to the film material fixing side; The fluorescent material layer includes a fixed side portion, the fixed side portion being located on a fixed side of the film material, the fixed side portion being located only in the peripheral region.

[0037] Optionally, the fluorescent material layer includes a non-fixed portion, the non-fixed portion being located on the non-film material fixed side, the non-fixed portion being located in the peripheral region and the central region.

[0038] Optionally, the shape of the display area includes a rectangular shape, and the outlines of the first surface and the second surface of the light guide plate are rectangular; the light guide plate includes a first side, a second side, a third side, and a fourth side that are adjacent to each other in sequence, the first side is located on the side where the film material is fixed, and the second side, the third side, and the fourth side are all located on the side where the film material is not fixed; The non-fixed side portion includes a second portion, a third portion and a fourth portion, the second portion being adjacent to the second side surface, the third portion being adjacent to the third side surface, and the fourth portion being adjacent to the fourth side surface.

[0039] Optionally, the shape of the display area is rectangular, the display area includes a long boundary and a wide boundary, the film material fixing side and the long boundary are located on the same side, and in the central area, the minimum width of the second portion is greater than the minimum width of the third portion, and the minimum width of the fourth portion is greater than the minimum width of the third portion.

[0040] Optionally, the layout density of the fluorescent material layer decreases along the direction from the peripheral region to the central region.

[0041] Optionally, the fixed-side portion includes a first layout region and a second layout region. The layout density m1 of the fixed-side portion in the first layout region satisfies m1≥80%, and the layout density m2 of the fixed-side portion in the second layout region satisfies 30%≤m2≤50%. The boundary of the second layout region close to the central region overlaps with the boundary of the central region. The second layout region is located between the central region and the first layout region, and the boundary of the second layout region away from the central region overlaps with the boundary of the first layout region close to the central region.

[0042] Optionally, the third portion includes a third layout region, a fourth layout region, and a fifth layout region arranged in sequence. The layout density m3 of the third portion in the third layout region satisfies m3≥80%, the layout density m4 of the third portion in the fourth layout region satisfies 30%≤m4≤50%, and the layout density m5 of the third portion in the fifth layout region satisfies 15%≤m5≤25%. The minimum distance d1 between the orthographic projection of the boundary of the third layout region away from the central region on the light guide plate and the light guide boundary located on the same side as the third layout region in the light guide plate satisfies d1≤1.5 mm. The minimum distance d2 between the orthographic projection of the boundary of the fourth layout region away from the central region on the light guide plate and the light guide boundary satisfies 1.5 mm<d2≤5 mm. The minimum distance d3 between the orthographic projection of the boundary of the fifth layout region away from the central region on the light guide plate and the light guide boundary satisfies 5 mm<d3≤9 mm.

[0043] Optionally, the second part includes a sequentially arranged sixth layout region, seventh layout region, eighth layout region, and ninth layout region. The layout density m6 of the second part in the sixth layout region satisfies m6 ≥ 80%, the layout density m7 of the second part in the seventh layout region satisfies 30% ≤ m7 ≤ 50%, the layout density m8 of the second part in the eighth layout region satisfies 15% ≤ m8 ≤ 25%, and the layout density m9 of the second part in the ninth layout region satisfies 5% ≤ m9 < 15%. The minimum distance d4 between the orthographic projection of the boundary away from the central region of the sixth layout region on the light guide plate and the light guide boundary located on the same side of the light guide plate as the sixth layout region satisfies d4 ≤ 1.5 mm. The minimum distance d5 between the orthographic projection of the boundary away from the central region of the seventh layout region on the light guide plate and the light guide boundary satisfies 1.5 mm < d5 ≤ 5 mm. The minimum distance d6 between the orthographic projection of the boundary away from the central region of the eighth layout region on the light guide plate and the light guide boundary satisfies 5 mm < d6 ≤ 9 mm. The minimum distance d7 between the orthographic projection of the boundary away from the central region of the ninth layout region on the light guide plate and the light guide boundary satisfies 9 mm < d7 ≤ 11 mm. The layout methods of the fourth part and the second part are the same.

[0044] Optionally, the display module further includes a middle frame, and the middle frame is provided to surround at least the non-film material fixing side. The middle frame covers a part of the edge of the light guide plate. The color conversion film layer includes a失效 part, and on the non-film material fixing side, the orthographic projection of the失效 part on the light guide plate is located inside the orthographic projection of the middle frame on the light guide plate. It should be noted that the term "失效 part" in the original text seems incorrect. It might be a misspelling. If it has a specific correct term, please provide it for a more accurate translation.The optical film material includes a prism layer and a brightness enhancement film, the prism layer is located between the color conversion film layer and the brightness enhancement film, and on the non-film material fixed side, the orthogonal projection of the prism layer onto the color conversion film layer and / or the orthogonal projection of the brightness enhancement film onto the color conversion film layer does not overlap the expired portion.

[0045] Optionally, the display module further includes a middle frame, the middle frame including a first portion located on a side of the light guide plate and a second portion covering at least a part of an edge of the first surface, and a width X of a target portion of the fluorescent material layer satisfies X=X1+X2+X3; X1 is,

number

number

[0046] Optionally, in a direction parallel to the reflective surface of the reflective sheet and perpendicular to the boundary of the central area on the side on which the target portion is located, the maximum width of the middle portion is less than or equal to 8 mm.

[0047] Optionally, the light guide plate has a target boundary on a side on which the at least some edges are located, and in a direction parallel to the light guide plate and perpendicular to the target boundary, a width of the at least some edges is 10 mm or less.

[0048] Optionally, in the central region, the third portion has a minimum width of 4mm or less and the second portion and / or the fourth portion has a minimum width of 9mm or less.

[0049] Optionally, the lamp bar is located on the side fixed to the film material.

[0050] Optionally, the lamp bar includes a lamp bar capable of emitting blue light, the fluorescent material layer includes a yellow fluorescent material layer, and the color conversion film layer includes a red-green quantum dot film.

[0051] Based on the technical solution of the above display module, according to a third aspect of the present disclosure, there is provided a display device including the above display module. [Brief description of the drawings]

[0052] [Figure 1] 1 is a schematic cross-sectional view of a film material fixing side of a display module according to an embodiment of the present disclosure. [Diagram 2] 1 is a schematic cross-sectional view of a non-film material fixing side of a display module according to an embodiment of the present disclosure, the side opposite to the film material fixing side. [Diagram 3] 3 is a schematic diagram of corresponding partial parameters of FIG. 2; FIG. [Figure 4] 1 is a schematic cross-sectional view of a non-film material fixing side of a display module according to an embodiment of the present disclosure, the side adjacent to the film material fixing side. [Diagram 5]1 is a schematic cross-sectional view of a non-film material fixing side of a display module according to an embodiment of the present disclosure, the side adjacent to the film material fixing side. [Figure 6] FIG. 2 is a first schematic plan view of a light source and a reflecting sheet according to an embodiment of the present disclosure. [Figure 7] 3 is a schematic diagram of each part included in a fluorescent material layer according to an embodiment of the present disclosure. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0053] The drawings described above are used to provide a further understanding of the present disclosure and constitute a part of the present disclosure, and the exemplary embodiments and the description thereof are used to interpret the present disclosure and do not constitute undue limitations on the present disclosure.

[0054] To further illustrate the display module and display device according to the embodiments of the present disclosure, the following detailed description will be given with reference to the drawings in the specification.

[0055] As shown in FIG. 1, FIG. 2, FIG. 4 to FIG. 7, an embodiment of the present disclosure provides a display module, the display module includes a film material fixing side 10 and a non-film material fixing side 11, and further includes a light source, a compensation structure sequentially stacked, a color conversion film layer 23, an optical film material, and a display panel 30, and the light emitted by the light source can be transmitted through the color conversion film layer 23 and the optical film material and enter the display panel 30; The optical film material is fixed to the film material fixing side, the orthogonal projection of the central region onto the plane in which the light-emitting surface of the display panel is located overlaps with the display region of the display panel 30; the orthogonal projection of the peripheral region onto the plane in which the light-emitting surface of the display panel is located at least partially overlaps with the non-display region of the display panel 30; a fluorescent material layer is provided in the peripheral region, the fluorescent material layer absorbs light rays from the light source and emits target light rays, and at least a portion of the fluorescent material layer extends to the central region; and in a direction parallel to the display panel, the minimum width of the fluorescent material layer located on the film material fixing side in a direction perpendicular to the boundary of the adjacent central region is smaller than the minimum width of the fluorescent material layer located on the non-film material fixing side in a direction perpendicular to the boundary of the adjacent central region.

[0056] For example, the boundary of the display area may be a straight line or a curved line. Thus, the boundary of the central area may be a straight line or a curved line. If the boundary of the central area is a curved line, the boundary perpendicular to the central area may be regarded as a tangent perpendicular to the curved line.

[0057] For example, the color conversion film layer 23 includes a quantum dot film layer, and the light emitted by the light source is incident on the quantum dot film layer to excite the quantum dot film layer to generate a light of a corresponding color, which is mixed with the light emitted by the light source to form a white light and irradiate the display panel 30.

[0058] For example, the optical film material is fixed to the film material fixing side 10, and on the non-film material fixing side 11, a middle frame 21 in the display module is arranged to surround the optical film material, and on the non-film material fixing side 11, there is a predetermined expansion space between the optical film material and the middle frame 21.

[0059] For example, the optical film can be fixed to the film fixing side 10 by a rubber strip or a hook.

[0060] For example, the middle frame 21 may be provided so as to surround the film material fixing side 10, and the film material fixing side 10 may not have an expansion space between the optical film material and the middle frame 21.

[0061] For example, a specific fixing method for fixing the optical film material to the film material fixing side 10 includes: at the film material fixing side 10, the edge of the optical film material is pressed by a rubber frame; and a card groove is provided in a backplane located on the film material fixing side 10; and the edge of the optical film material is fixed to the card groove, so that the optical film material is firmly fixed to the film material fixing side 10.

[0062] Exemplarily, the compensation structure includes a rectangular central region and a peripheral region surrounding the central region, and a fluorescent material layer is provided in the peripheral region, which absorbs light from a light source and emits target light, which can pass through the color conversion film layer 23 and the optical film material and enter the display panel 30. Exemplarily, the fluorescent material layer 25 is formed by printing.

[0063] Exemplarily, the display panel 30 includes a display area and a non-display area surrounding the display area, where an orthogonal projection of the central area onto the display panel 30 overlaps with the display area of ​​the display panel 30, and an orthogonal projection of the peripheral area onto the display panel 30 at least partially overlaps with the non-display area of ​​the display panel 30.

[0064] For example, the orthogonal projection of the central region onto the plane on which the light-emitting surface of the display panel is located overlaps with the display region of the display panel 30, and the orthogonal projection of the non-display region of the display panel 30 onto the reflective sheet is located within the peripheral region.

[0065] Exemplarily, the display panel 30 includes a liquid crystal display panel 30 .

[0066] Exemplarily, at least a portion of the fluorescent material layer 25 extends to the central region, so that the orthogonal projection of at least a portion of the fluorescent material layer 25 onto a plane in which the light output surface of the display panel is located can be located in the display region.

[0067] Exemplarily, the light source emits blue light, the fluorescent material layer 25 includes a yellow fluorescent material layer, which absorbs a part of the blue light and emits white light. Exemplarily, the display module further includes a color conversion film layer 23, which absorbs blue light and excites red and green light, and the red light, the green light and the unabsorbed blue light are mixed to form white light.

[0068] In addition, when the display module adopts a side-entry type backlight, when the lamp bar 20 is provided on the film material fixing side 10, the light emitted by the lamp bar 20 has a strong light intensity on the film material fixing side, so that the light emitted by the display module on the film material fixing side 10 is biased to the color of the light emitted by the lamp bar. On the non-film material fixing side 11, there is a certain expansion space between the optical film material and the middle frame 21, so that the light emitted by the light source cannot be reflected multiple times on the non-film material fixing side 11, and multiple excitations to the color conversion film layer 23 cannot be realized, and the excitation efficiency of the color conversion film layer 23 on the non-film material fixing side 11 is lower than the excitation efficiency of the middle part, so that on the non-film material fixing side 11, the light emitted by the display module is biased to the color of the light emitted by the light source. For example, when the light source emits blue light, the color temperature of the light emitted from the four sides of the color conversion film layer 23 is high, and the four sides of the display module become blue.

[0069] According to the specific structure of the above display module, in the display module of the embodiment of the present disclosure, a fluorescent material layer 25 is provided in the peripheral region of the compensation structure, and the fluorescent material layer 25 can absorb light from the light source and emit target light, effectively improving the utilization efficiency of light from the light source in the peripheral region, and improving the problem of poor display around the LCD display caused by light rays biased to the light source color appearing around the display module, making the backlight color temperature of the entire display module more uniform, and improving the visual effect.

[0070] In the display module according to the embodiment of the present disclosure, at least a portion of the fluorescent material layer 25 is configured to extend to the central region, thereby effectively improving the utilization efficiency of light from the light source at the edge of the central region, and further improving the problem of poor display around the LCD display caused by light biased toward the light source color appearing around the display module.

[0071] On the film material fixing side 10, there is no expansion space between the optical film material and the middle frame 21, and the light emitted by the light source can be reflected multiple times on the film material fixing side 10 to realize multiple excitations to the color conversion film layer 23, so that the polarization degree on the film material fixing side 10 of the display module is smaller than that on the non-film material fixing side 11. Therefore, in the display module according to the embodiment of the present disclosure, in the direction parallel to the display panel 30, the minimum width of the fluorescent material layer 25 located on the film material fixing side 10 in the direction perpendicular to the boundary of the adjacent compensation structure is set to be smaller than the minimum width of the fluorescent material layer 25 located on the non-film material fixing side 11 in the direction perpendicular to the boundary of the adjacent compensation structure, so that the backlight color temperature of the entire display module is more uniform and the visual effect is better.

[0072] In addition, in some embodiments, the fluorescent material layers on both sides of the display module may be arranged to be in contact with each other at the two crossing boundaries, so that it is difficult to determine the width of the corresponding fluorescent material layer at this time, so that in such a case, the width of the fluorescent material layer needs to be measured by avoiding the two crossing boundaries of the display module, or not considering the position where it is difficult to determine the width of the fluorescent material layer.

[0073] As shown in FIGS. 1, 2, 4 to 7, in some embodiments, the light source further includes a light guide plate 20 and a lamp bar 22; The light guide plate 20 includes a first surface and a second surface facing each other, and a side surface located between the first surface and the second surface. The lamp bar 22 is located on a side surface of the light guide plate 20. Light emitted from the lamp bar 22 enters the light guide plate 20 from the side surface of the light guide plate 20. the color conversion film layer 23 is located on a first surface of the light guide plate 20, and the optical film material is located on the opposite side of the color conversion film layer 23 from the light guide plate 20; The compensation structure includes a reflective sheet 24 located on the second surface of the light guide plate 20, and the fluorescent material layer 25 is disposed on the peripheral area of ​​the reflective sheet 24.

[0074] For example, when the display module is applied to a drawing plate, the display module may further include an electromagnetic film 28 to realize normal writing and drawing on the drawing plate by a touch pen. For example, the electromagnetic film 28 can be used to sense the position information of the touch pen and display it on the display module. For example, the outline of the display area of ​​the display module may be rectangular, and the diagonal length may be 6 to 35 inches.

[0075] In one specific embodiment, as shown in FIG. 2, on at least one side, the orthogonal projection of the boundary of the reflective sheet 24 onto the electromagnetic film 28 is located inside the orthogonal projection of the light guide plate 20 onto the electromagnetic film 28. Optionally, the display module further includes a fixing rubber located between the light guide plate 20 and the electromagnetic film 28, and the fixing rubber is bonded to the reflective sheet 24, the light guide plate 2, and the electromagnetic film 28, and is used to bond and fix the three together. Preferably, as shown in FIG. 1 and FIG. 2, the fixing rubber and the lamp bar 22 are not located on the same side, in order to facilitate the installation of the lamp bar 22. Preferably, the fixing rubber is located on the opposite side of the lamp bar 22. Optionally, as shown in Figures 1, 2, 4 and 5, on both sides of the non-film material fixing side 11 adjacent to the film material fixing side 10, the orthogonal projection of the boundary of the reflective sheet 24 onto the electromagnetic film 28 at least partially overlaps with the orthogonal projection of the boundary of the light guide plate 20 onto the electromagnetic film 28, thereby maximizing the light reflecting effect of the reflective sheet and the light conversion effect of the compensation structure to improve the display effect.

[0076] In one specific embodiment, as shown in Figures 1, 2, and 4 to 7, on the side where the lamp bar 22 is arranged, the orthogonal projection of the boundary of the reflective sheet 24 onto the electromagnetic film 28 is located inside the orthogonal projection of the lamp bar 22 onto the electromagnetic film 28. This setting method can fully exert the function of the reflective sheet, and can reflect the light inside the light guide plate 20, and can also directly reflect the light emitted from the lamp bar 22.

[0077] Exemplarily, on the side where the lamp bar 22 is disposed, the orthogonal projection of the boundary of the reflecting sheet 24 onto the electromagnetic film 28 is located inside the orthogonal projection of the LED of the lamp bar 22 onto the electromagnetic film 28. Optionally, on the side where the lamp bar 22 is disposed, the orthogonal projection of the reflecting sheet 24 onto the electromagnetic film 28 at least partially overlaps with the orthogonal projection of the boundary of the LED of the lamp bar 22 away from the light guide plate 20 onto the electromagnetic film 28. This design can fully utilize the fluorescent material layer 25 to perform light conversion, and can effectively improve the blue-tinted light output phenomenon on the side of the lamp bar 22. Optionally, on the side where the lamp bar 22 is disposed, the orthogonal projection of the boundary of the light guide plate 20 onto the electromagnetic film 28 is located inside the orthogonal projection of the reflecting sheet 24 onto the electromagnetic film 28, thereby yielding the position of the lamp bar 22 and making the overall design more compact. Alternatively, as shown in FIG. 1, the side where the film material is fixed and the side where the lamp bar 22 is located are the same side of the display module.

[0078] As shown in FIG. 2, on at least one side, the orthogonal projection of the boundary of the reflective sheet 24 onto the backplane 29 in a direction perpendicular to the display panel is located within the orthogonal projection of the light guide plate 20 onto the backplane 29 in a direction perpendicular to the display panel.

[0079] Optionally, as shown in Figures 1, 2, 4 and 5, on both sides of the non-film material fixing side 11 adjacent to the film material fixing side 10, the orthogonal projection of the boundary of the reflective sheet 24 onto the backplane 29 in a direction perpendicular to the display panel at least partially overlaps with the orthogonal projection of the boundary of the light guide plate 20 onto the backplane 29 in a direction perpendicular to the display panel, thereby maximizing the light reflecting effect of the reflective sheet and the light conversion effect of the compensation structure to improve the display effect.

[0080] In one specific embodiment, as shown in Figures 1, 2, and 4 to 7, on the side where the lamp bar 22 is arranged, the orthogonal projection of the boundary of the reflective sheet 24 onto the backplane 29 in the direction perpendicular to the display panel is located inside the orthogonal projection of the lamp bar 22 onto the backplane 29 in the direction perpendicular to the display panel. Such a setting method can fully exert the function of the reflective sheet, and can reflect the light inside the light guide plate 20, and can also directly reflect the light emitted from the lamp bar 22.

[0081] Exemplarily, on the side where the lamp bar 22 is arranged, the orthogonal projection of the boundary of the reflective sheet 24 in the direction perpendicular to the display panel onto the backplane 29 is located within the orthogonal projection of the LED of the lamp bar 22 onto the backplane 29 in the direction perpendicular to the display panel. Optionally, on the side where the lamp bar 22 is arranged, the orthogonal projection of the reflective sheet 24 onto the backplane 29 in the direction perpendicular to the display panel at least partially overlaps with the orthogonal projection of the boundary of the LED of the lamp bar 22 away from the light guide plate 20 onto the backplane 29 in the direction perpendicular to the display panel. By designing in this way, the fluorescent material layer 25 can be fully utilized to perform light conversion, and the phenomenon of blue-shifted light emitted from the lamp bar 22 side can be effectively improved. Optionally, on the side where the lamp bar 22 is located, the orthogonal projection of the boundary of the light guide plate 20 onto the backplane 29 in the direction perpendicular to the display panel is located within the orthogonal projection of the reflective sheet 24 onto the backplane 29 in the direction perpendicular to the display panel, thereby ceding the position of the lamp bar 22 and making the overall design more compact. Optionally, as shown in Figure 1, the film material fixing side and the side where the lamp bar 22 is located are the same side of the display module.

[0082] Exemplarily, the display module further includes an inner frame 21 , which is provided to surround the non-film material fixing side 11 .

[0083] Exemplarily, the reflective sheet 24 is located on the second surface of the light guide plate 20, the reflective sheet 24 includes a central region 241 and a peripheral region 242 surrounding the central region 241, the orthogonal projection of the central region 241 onto the display panel 30 overlaps with the display region of the display panel 30, the orthogonal projection of the peripheral region 242 onto the display panel 30 at least partially overlaps with the non-display region of the display panel 30, a fluorescent material layer 25 is provided in the peripheral region 242, the fluorescent material layer 25 absorbs light emitted by the lamp bar 22 and emits target light, and at least a portion of the fluorescent material layer 25 extends to the central region 241.

[0084] FIG. 1 also shows a schematic diagram of the crystal coating film COF, a backplane 29, and a circuit board PCB.

[0085] Exemplarily, the light guide plate 20 includes a first surface and a second surface opposite to each other, the first surface being located on a light emitting side of the light guide plate 20, and the second surface being located on a non-light emitting side of the light guide plate 20, and light in the light guide plate 20 is emitted from the first surface to provide a light source for the display panel 30 used in conjunction therewith. For example, the middle frame 21 includes a rubber frame. The middle frame 21 is provided to surround the non-film material fixing side 11, and a part of the middle frame 21 is located on a side surface of the light guide plate 20.

[0086] For example, the lamp bars 22 are provided on the side of the light guide plate 20, and the light emitted from the lamp bars 22 may enter the light guide plate 20 from the side of the light guide plate 20.

[0087] For example, the color conversion film layer 23 includes a quantum dot film layer. The light emitted by the lamp bar 22 enters the quantum dot film layer, and excites the quantum dot film layer to generate a light of a corresponding color, which is mixed with the light emitted by the lamp bar 22 to form a white light, which is irradiated to the display panel 30.

[0088] For example, the optical film material is fixed to the film material fixing side 10, and on the non-film material fixing side 11, the middle frame 21 is arranged to surround the optical film material, and on the non-film material fixing side 11, there is a predetermined expansion space between the optical film material and the middle frame 21.

[0089] For example, the reflective sheet 24 is adjacent to the second surface of the light guide plate 20, and the light emitted by the lamp bar 22 passes through the second surface and irradiates the reflective sheet 24, and is then reflected by the reflective sheet 24 into the light guide plate 20, and finally the light is emitted from the first surface of the light guide plate 20.

[0090] Exemplarily, the reflective sheet 24 includes a rectangular central region 241 and a peripheral region 242 surrounding the central region 241. A fluorescent material layer 25 is provided in the peripheral region 242, which absorbs light emitted by the lamp bar 22 and emits target light, which is reflected into the light guide plate 20, and finally exits from the first surface of the light guide plate 20. Exemplarily, the fluorescent material layer 25 is formed by printing.

[0091] Exemplarily, at least a portion of the fluorescent material layer 25 extends to the central region 241, so that an orthogonal projection of at least a portion of the fluorescent material layer 25 onto the display panel 30 can be located in the display region.

[0092] Exemplarily, the lamp bar 22 includes a blue light emitting diode (LED), and the fluorescent material layer 25 includes a yellow fluorescent material layer, which absorbs partial blue light emitted by the blue light emitting diode and emits white light. Exemplarily, the display module further includes a color conversion film layer 23, which absorbs blue light and excites red light and green light, and the red light, the green light and the unabsorbed blue light are mixed to form white light.

[0093] In the display module of the above embodiment, a fluorescent material layer 25 is provided in the peripheral region 242 of the reflective sheet 24, and the fluorescent material layer 25 can absorb the light emitted by the lamp bar 22 and emit target light, effectively improving the utilization efficiency of the light emitted by the lamp bar 22 in the peripheral region 242, and improving the problem of poor display around the LCD display caused by the light biased to the color of the lamp bar 22 appearing around the display module, making the backlight color temperature of the entire backlight more uniform, and improving the visual effect.

[0094] In the display module of the above embodiment, at least a portion of the fluorescent material layer 25 is set to extend to the central region 241, thereby effectively improving the utilization efficiency of the light emitted by the edge lamp bar 22 in the central region 241, and further improving the problem of poor display around the LCD display caused by light biased to the color of the lamp bar 22 appearing at the edge of the display area of ​​the display module.

[0095] In some embodiments, the light source includes a lamp plate, the lamp plate being located on the opposite side of the color conversion film layer from the optical film material, the lamp plate being multiplexed as the compensation structure, and the fluorescent material layer being provided in the peripheral region of the lamp plate.

[0096] Exemplarily, the side of the lamp plate facing the color conversion film layer includes a central region and a peripheral region surrounding the central region, the orthogonal projection of the central region onto the display panel 30 overlaps with the display region of the display panel 30, the orthogonal projection of the peripheral region onto the display panel 30 at least partially overlaps with the non-display region of the display panel 30, and a fluorescent material layer is provided in the peripheral region, which absorbs light rays from the light source and emits target light rays.

[0097] Exemplarily, the display module further includes a diffusion sheet having a light diffusing effect, the diffusion sheet being located between the lamp plate and the color conversion film layer.

[0098] For example, the lamp plate emits blue light, and the fluorescent material layer 25 includes a yellow fluorescent material layer that absorbs a part of the blue light and emits white light.

[0099] In the display module of the above embodiment, a fluorescent material layer 25 is provided in the peripheral region 242 of the lamp plate, and the fluorescent material layer 25 can absorb the light emitted by the lamp plate and emit target light, effectively improving the utilization efficiency of the light emitted by the lamp plate in the peripheral region 242, and improving the problem of poor display around the LCD display caused by the light biased to the color of the lamp plate appearing at the edge of the display area of ​​the display module, making the backlight color temperature of the entire backlight more uniform, and improving the visual effect.

[0100] In the display module of the above embodiment, at least a portion of the fluorescent material layer 25 is set to extend to the central region 241, thereby effectively improving the utilization efficiency of the light emitted by the lamp plate at the edge of the central region 241, and further improving the problem of poor display around the LCD display caused by light biased to the color of the lamp plate appearing around the display module.

[0101] In some embodiments, the fluorescent material layer 25 includes a mixed material layer of ink and phosphor powder, and the mass percentage of the ink and the phosphor powder is from 100 / 24.5 to 100 / 40.5, including end points.

[0102] Exemplarily, the mass percentage of the ink and the phosphor powder is 100 / 25 to 100 / 40.

[0103] For example, the ink and the phosphor powder are mixed in the above weight percentage, and then a printing process is used to form the fluorescent material layer 25. Since the ink and the phosphor powder both have good stability, the formed fluorescent material layer 25 still meets the above weight percentage. In addition, the chemical properties of the ink are relatively stable and are not easily volatilized or changed in quality.

[0104] Exemplarily, the ink includes a transparent ink. The main component of the phosphor powder is at least one of a YAG phosphor powder and a nitride phosphor powder, which are commonly used in LEDs.

[0105] In the display module of the above embodiment, by setting the mass percentage of the ink and the phosphor powder to be 100 / 24.5 to 100 / 40.5, the utilization efficiency of the light emitted by the light source in the peripheral region 242 can be effectively improved, and the color temperature uniformity of the backlight can be improved, and the production cost of the display module can be effectively reduced.

[0106] By adjusting the concentration of the coated yellow phosphor powder, it is possible to deal with different degrees of display defects caused by ambient blue tint in actual products, providing a solution concept for display defects caused by four-sided blue tint for future products with high color gamut quantum dot film + side-loading blue light LED architecture such as various drawing plates.

[0107] In some embodiments, the mass percentage of the ink and the phosphor powder is set to be 100 / 24.5 to 100 / 25.5.

[0108] The above setting method can better balance the manufacturing cost and improve the color temperature uniformity of the backlight, and can minimize the manufacturing cost while ensuring the color temperature uniformity.

[0109] In some embodiments, the thickness of the fluorescent material layer 25 in the direction perpendicular to the color conversion film layer 23 is set to be between 5 μm and 6 μm, including end values.

[0110] By setting the thickness of the fluorescent material layer 25 within the above range, the color temperature uniformity of the backlight can be improved and the thickness of the fluorescent material layer 25 can be prevented from having an excessive effect on the thickness of the entire display module.

[0111] As shown in Figures 6 and 7, in some embodiments, the fluorescent material layer 25 includes a fixed side portion 251, which is located on the fixed side 10 of the film material, and the fixed side portion 251 is located only in the peripheral region 242.

[0112] Exemplarily, the fixed side portion 251 has a striped structure and extends along the boundary of the reflecting sheet 24 at the fixed side 10 of the film material.

[0113] The optical film material is fixed on the film material fixing side 10, and on the film material fixing side 10, the optical film material does not need a certain expansion space, and the optical film material can normally cover the color conversion film layer 23, so that on the film material fixing side 10, the light emitted by the light source can be reflected by the entire optical architecture to realize multiple excitations. In the example of combining a blue light source with a red and green quantum dot film, the blue light emitted by the light source is absorbed by a large amount of excitation, the blue light component is relatively reduced, and the red light and green light components generated by multiple excitations are increased, so that the light color of the display module on the film material fixing side 10 becomes white, and the color temperature uniformity of the display module on the film material fixing side 10 is effectively improved. Note that the wavelength change of the light is only the wavelength change generated by the red quantum dots and green quantum dots absorbing the blue light, and the wavelength of the light does not change due to reflection, refraction, etc., but only increases the probability of multiple excitation absorption.

[0114] Therefore, by positioning the fixed side portion 251 only in the peripheral region 242 on the film material fixing side 10 of the display module, the color temperature uniformity of the display module on the film material fixing side 10 can be effectively improved.

[0115] As shown in Figures 6 and 7, in some embodiments, the fluorescent material layer 25 is located in a non-fixed side portion, which is located on the non-film material fixed side 11, and which is located in the peripheral region 242 and the central region 241.

[0116] Exemplarily, the non-fixed side portion extends along a boundary of the reflector sheet 24 at the non-film material fixed side 11 .

[0117] At the non-film material fixing side 11, there is a certain expansion space between the optical film material and the middle frame 21, so that the optical film material cannot normally cover the color conversion film layer 23 at the non-film material fixing side 11, and therefore the number of times that light rays are reflected throughout the optical architecture at the non-film material fixing side 11 is reduced.

[0118] In the display module of the above embodiment, by setting the non-fixed side portion on the non-film material fixing side 11 to be located in the peripheral region 242 and the central region 241, the utilization efficiency of the light emitted by the light source on the non-film material fixing side 11 can be further improved, and the color temperature uniformity of the display module on the non-film material fixing side 11 can be effectively improved.

[0119] As shown in FIG. 6 and FIG. 7, in some embodiments, the shape of the display area is rectangular, the outline of the first surface and the second surface of the light guide plate is rectangular, the light guide plate 20 includes a first side, a second side, a third side and a fourth side that are adjacent to each other, the first side is located on the film material fixing side 10, and the second side, the third side and the fourth side are all located on the non-film material fixing side 11; The non-fixed side portion includes a second portion 252, a third portion 253 and a fourth portion 254, the second portion 252 being adjacent to the second side, the third portion 253 being adjacent to the third side, and the fourth portion 254 being adjacent to the fourth side.

[0120] Exemplarily, the light guide plate 20 has a hexahedral structure and includes a first surface, a second surface, and a first side surface, a second side surface, a third side surface, and a fourth side surface which are adjacent to each other in sequence, the first side surface and the third side surface facing each other, and the second side surface and the fourth side surface facing each other.

[0121] Exemplarily, the fixed portion 251, the second portion 252, the third portion 253 and the fourth portion 254 are formed as an integral structure.

[0122] Exemplarily, the second portion 252 , the third portion 253 and the fourth portion 254 are all located in the peripheral region 242 and the central region 241 .

[0123] As shown in Figures 6 and 7, in some embodiments, the shape of the display area is rectangular, the display area includes a long boundary and a wide boundary, the film material fixing side and the long boundary are located on the same side, and in the central region 241, the minimum width of the second portion 252 is greater than the minimum width of the third portion 253, and the minimum width of the fourth portion 254 is greater than the minimum width of the third portion 253.

[0124] Exemplarily, the display area includes two long boundaries and two wide boundaries, and the film material fixing side and one of the long boundaries are located on the same side.

[0125] Exemplarily, the reflective sheet 24 includes a first boundary, a second boundary, a third boundary and a fourth boundary, the first boundary and the fixed side portion 251 are located on the same side, the second boundary and the second portion 252 are located on the same side, the third boundary and the third portion 253 are located on the same side, and the fourth boundary and the fourth portion 254 are located on the same side.

[0126] For example, in the central region 241, in a direction parallel to the reflective sheet 24, the minimum width of the second portion 252 in a direction perpendicular to the second boundary is greater than the minimum width of the third portion 253 in a direction perpendicular to the third boundary, and the minimum width of the fourth portion 254 in a direction perpendicular to the fourth boundary is greater than the minimum width of the third portion 253.

[0127] Exemplarily, the display module includes two long sides and two short sides, the long sides extending along the horizontal direction and the short sides extending along the vertical direction, the film material fixing side 10 is located at one of the two long sides of the display module, and the non-film material fixing side 11 is located at the other long side and the two short sides of the display module. The third portion 253 and another long side are located on the same side, the second portion 252 and one short side are located on the same side, and the fourth portion 254 and another short side are located on the same side.

[0128] Since the optical film material has a long length in the longitudinal direction, it is necessary to set a wide expansion space between the optical film material and the middle frame 21 on the two short sides. On the other hand, since the optical film material has a short length in the transverse direction, it is necessary to set a narrow expansion space between the optical film material and the middle frame 21 on the two long sides. The larger the expansion space, the larger the width of the fluorescent material layer 25 that should be set, thereby further improving the utilization rate of the light emitted by the light source. The smaller the expansion space, the smaller the width of the fluorescent material layer 25 that should be set, thereby appropriately improving the utilization rate of the light emitted by the light source and avoiding the problem of yellowing of the frame of the display module.

[0129] In the display substrate of the above embodiment, by setting the minimum width of the second portion 252 in the central region 241 to be greater than the minimum width of the third portion 253 and the minimum width of the fourth portion 254 to be greater than the minimum width of the third portion 253, the utilization efficiency of the light emitted by the light source on the non-film material fixing side 11 can be adaptively improved, and not only can the color temperature uniformity on the non-film material fixing side 11 of the display module be effectively improved, but also the problem of yellowing of the frame of the display module can be avoided.

[0130] In the display module according to the above embodiment, the side where one of the long sides of the display module is located is set as the side where the film material is fixed, that is, the optical film material and the lamp bar in the light source are both set as the side where one of the long sides of the display module is located. This setting method is advantageous for narrowing the frame of the display module. In addition, a lamp bar with a large length can be provided, which is advantageous for improving the brightness of the display module.

[0131] As shown in FIGS. 6 and 7, in some embodiments, the layout density of the fluorescent material layer 25 decreases in the direction from the peripheral region 242 to the central region 241.

[0132] Exemplarily, the layout density of the fluorescent material layer 25 may be the proportion of the fluorescent material distribution area in a unit area of ​​the fluorescent material layer 25. For example, the fluorescent material layer 25 is fabricated using a printing process. By controlling the density of the print dots in different regions, the density of the formed fluorescent material layer 25 can be controlled.

[0133] Since the phenomenon in which the light emission of the display module is biased toward the light source color gradually weakens in the direction from the peripheral region 242 toward the central region 241, by setting the layout density of the fluorescent material layer 25 to decrease in the direction from the peripheral region 242 toward the central region 241 as described above, the problem of light rays biased toward the light source color occurring around the display module can be improved and display defects due to yellowing occurring around the display module can be avoided.

[0134] As shown in FIGS. 6 and 7, in some embodiments, the fixed portion 251 includes a first layout region and a second layout region, a layout density m1 of the fixed side portion 251 in the first layout region satisfies m1≧80%, and a layout density m2 of the fixed side portion 251 in the second layout region satisfies 30%≦m2≦50%, The boundary of the second layout region close to the central region 241 overlaps with the boundary of the central region 241, the second layout region is located between the central region 241 and the first layout region, and the boundary of the second layout region away from the central region 241 overlaps with the boundary of the first layout region close to the central region 241.

[0135] As shown in FIGS. 6 and 7, in some embodiments, the third portion 253 includes a third layout region, a fourth layout region, and a fifth layout region, which are arranged in sequence. a layout density m3 of the third portion 253 in the third layout region satisfies m3≧80%, a layout density m4 of the third portion 253 in the fourth layout region satisfies 30%≦m4≦50%, a layout density m5 of the third portion 253 in the fifth layout region satisfies 15%≦m5≦25%, a minimum distance d1 between an orthogonal projection of a boundary of the third layout region away from the central region 241 onto the light guide plate and a light guide boundary located on the same side of the light guide plate as the third layout region satisfies d1≦1.5 mm; The minimum distance d2 between the orthographic projection of the boundary away from the central region 241 of the fourth layout region onto the light guide plate and the light guide boundary satisfies 1.5 mm < d2 ≤ 5 mm. The minimum distance d3 between the orthographic projection of the boundary away from the central region 241 of the fifth layout region onto the light guide plate and the light guide boundary satisfies 5 mm < d3 ≤ 9 mm.

[0136] As shown in FIGS. 6 and 7, in some embodiments, the second portion 252 includes a sixth layout region, a seventh layout region, an eighth layout region, and a ninth layout region that are sequentially arranged. The layout density m6 of the second portion 252 in the sixth layout region satisfies m6 ≥ 80%, the layout density m7 of the second portion 252 in the seventh layout region satisfies 30% ≤ m7 ≤ 50%, the layout density m8 of the second portion 252 in the eighth layout region satisfies 15% ≤ m8 ≤ 25%, and the layout density m9 of the second portion 252 in the ninth layout region satisfies 5% ≤ m9 < 15%. The minimum distance d4 between the orthographic projection of the boundary away from the central region 241 of the sixth layout region onto the light guide plate and the light guide boundary located on the same side of the light guide plate as the sixth layout region satisfies d4 ≤ 1.5 mm. The minimum distance d5 between the orthographic projection of the boundary away from the central region 241 of the seventh layout region onto the light guide plate and the light guide boundary satisfies 1.5 mm < d5 ≤ 5 mm. The minimum distance d6 between the orthographic projection of the boundary away from the central region 241 of the eighth layout region onto the light guide plate and the light guide boundary satisfies 5 mm < d6 ≤ 9 mm. The minimum distance d7 between the orthographic projection of the boundary away from the central region 241 of the ninth layout region onto the light guide plate and the light guide boundary satisfies 9 mm < d7 ≤ 11 mm. The layout methods of the fourth portion 254 and the second portion 252 are the same.

[0137] Exemplarily, the layout density in the first layout region, the third layout region, and the sixth layout region includes 100%, the layout density in the second layout region, the fourth layout region, and the seventh layout region includes 40%, the layout density in the fifth layout region and the eighth layout region includes 20%, and the layout density in the ninth layout region includes 10%.

[0138] In the display module of the above embodiment, by controlling the layout density of the fluorescent material layer 25 in different layout regions, the problem of light rays biased toward the light source color occurring around the display module can be improved and display defects caused by yellowing occurring around the display module can be avoided.

[0139] As shown in Figures 1, 2, 4 and 5, in some embodiments, the display module further includes a middle frame, which is arranged to surround at least the non-film material fixing side 11, the middle frame 21 covers a portion of an edge of the light guide plate 20, and the color conversion film layer 23 includes a failed portion 231, and on the non-film material fixing side, the orthogonal projection of the failed portion 231 onto the light guide plate 20 is located within the orthogonal projection of the middle frame 21 onto the light guide plate 20.

[0140] Exemplarily, the minimum width of the lapsed portion 231 in a direction parallel to the light guide plate 20 may be 1 mm to 1.5 mm, inclusive. The lapsed portion 231 is completely covered by the inner frame 21.

[0141] Exemplarily, on the film material fixing side 10, the orthogonal projection of the boundary of the optical film material onto the light guide plate is located within the orthogonal projection of the color conversion film layer 23 onto the light guide plate.

[0142] The color conversion film layer 23 includes a quantum dot film, and the quantum dot material contained in the quantum dot film is easily damaged when it encounters water vapor and oxygen. A deficiency portion 231 is formed on the quantum dot film, and when the light emitted by the light source passes through the deficiency portion 231 of the quantum dot film, the light cannot excite the corresponding color, so the light from the light source maintains its original color when it is emitted to the display module.

[0143] By setting the orthogonal projection of the above-mentioned failed portion 231 onto the light guide plate 20 to be located within the orthogonal projection of the middle frame 21 onto the light guide plate 20, it is ensured that the overlapping portions between the color conversion film layer 23 and the display area of ​​the display panel 30 can all be excited normally, and further the light output efficiency of the display module can be guaranteed.

[0144] In some embodiments, the display module further includes a middle frame 21, the middle frame 21 including a first portion located on a side of the light guide plate 20 and a second portion covering at least a part of an edge of a first surface of the light guide plate 20; The light guide plate 20 has a target boundary on the side where the at least some edges are located, and the width of the at least some edges is 10 mm or less in a direction parallel to the light guide plate 20 and perpendicular to the target boundary. The width of the at least some edges is 10 mm or less, which is advantageous for reducing the frame width of the display module and improving the user experience.

[0145] As shown in Figures 1, 2, 4, 5, 6 and 7, in some embodiments, the optical film material includes a prism layer 26 and a brightness enhancement film 27, and the prism layer 26 is located between the color conversion film layer 23 and the brightness enhancement film 27, and on the non-film material fixed side, the orthogonal projection of the prism layer 26 onto the color conversion film layer 23 and / or the orthogonal projection of the brightness enhancement film 27 onto the color conversion film layer 23 does not overlap the expired portion.

[0146] In the display module of the above embodiment, the film materials are arranged from the backplane to the display panel 30 in the following order: backplane, electromagnetic film 28 (the film material may be absent), reflective sheet 24, light guide plate 20, color conversion film layer 23, middle frame 21, prism layer 26, prism layer 26, brightness enhancement film 27 (DBEF), and display panel 30.

[0147] In one specific embodiment, as shown in FIG. 1, FIG. 2, FIG. 4, FIG. 5, FIG. 6 and FIG. 7, the DBEF film material is restricted by the restriction of the second part of the middle frame 21, and there is a gap between the DBEF film material and the middle frame 21 in the direction parallel to the light output surface of the display panel. Preferably, the prism layer 26 and the DBEF film material are restricted by the second part of the middle frame 21, and there is a gap between the prism layer 26 and the DBEF film material and the middle frame 21 in the direction parallel to the light output surface of the display panel. By installing in this way, the thickness of the entire display module can be reduced, the activity space of the prism layer 26 and the DBEF film material in the direction perpendicular to the plane on which the light output surface of the display panel is located can be reduced, and the reliability of the display module can be improved. Furthermore, preferably, the prism layer 26 and the DBEF film material can be fixed by a fixing structure (e.g., double-sided tape, stopper) in the direction perpendicular to the plane on which the light output surface of the display panel is located, and the reliability of the display module can be further improved.

[0148] In one specific embodiment, the middle frame 21 surrounds at least a part of the sides of the prism layer 26 and the DBEF film material, and the DBEF film material is restricted by the middle frame 21. In consideration of reliability, it is necessary to provide a thermal expansion space between the DBEF film material and the middle frame 21 on the non-film material fixing side 11. In this way, due to the existence of the thermal expansion space, the DBEF film material cannot realize sufficient multiple reflections of the light source beam on the non-film material fixing side 11, and cannot allow the light source beam to sufficiently excite the color conversion film layer 23. Therefore, it is possible to set the non-fixed side portion on the non-film material fixing side 11 so that it can be located in both the peripheral region 242 and the central region 241. Optionally, both the prism layer 26 and the DBEF film material are restricted by the middle frame 21, and it is necessary to provide a thermal expansion space both between the prism layer 26 and the middle frame 21 and between the DBEF film material and the middle frame 21 so that the light source beam can sufficiently excite the color conversion film layer 23. Optionally, at the non-film material fixed side 11, the orthogonal projections of the prism layer 26 and the edges of the DBEF film material onto the backplane 29 at least partially overlap. Optionally, at the non-film material fixed side 11, the orthogonal projections of the prism layer 26 and the edges of the DBEF film material onto the backplane 29 at the non-film material fixed side 11 completely overlap.

[0149] On the non-film material fixing side 11, the orthogonal projection of the prism layer 26 onto the color conversion film layer 23 and / or the orthogonal projection of the brightness enhancement film 27 onto the color conversion film layer 23 does not overlap the failure region. As a result, the overlapping portion between the color conversion film layer 23 and the prism layer 26 and the overlapping portion between the color conversion film layer 23 and the brightness enhancement film 27 are both non-failure regions, so that the reliability and light output rate of the display module can be guaranteed.

[0150] As shown in FIGS. 2 and 3 , in some embodiments, the display module further includes a middle frame 21, the middle frame 21 including a first portion located on a side of the light guide plate 20 and a second portion covering at least a part of an edge of the first surface, and a width X of a target portion of the fluorescent material layer 25 satisfies X=X1+X2+X3; X1 is,

number

number

[0151] The design reference environment (or measurement conditions) for the above parameters is a room temperature environment with the display module in a non-operating state, and measurements are performed in an environment of, for example, 25 degrees.

[0152] Exemplarily, d2 is the sum of the thicknesses of the prism layer 26 and the brightness enhancement film 27 in a direction perpendicular to the display panel.

[0153] Exemplarily, the maximum width X3 of the inner frame described above is 8 mm or less.

[0154] For example, when forming a fluorescent material, the actual width value of the target portion can be selected between X±1.5 mm, and can take two end values ​​of X+1.5 or X−1.5.

[0155] For illustrative purposes, both L and 5200 are in nits.

[0156] For example, when calculating the width of the fixed side portion 251, d1 is the width where the boundary of the color conversion film layer 23 exceeds the boundary of the prism layer 26 on the side where the fixed side portion 251 is located. When calculating the width of the second portion 252, d1 is the width where the boundary of the color conversion film layer 23 exceeds the boundary of the prism layer 26 on the side where the second portion 252 is located. When calculating the width of the third portion 253, d1 is the width where the boundary of the color conversion film layer 23 exceeds the boundary of the prism layer 26 on the side where the third portion 253 is located. When calculating the width of the fourth portion 254, d1 is the width where the boundary of the color conversion film layer 23 exceeds the boundary of the prism layer 26 on the side where the fourth portion 254 is located.

[0157] Exemplarily, on the film material fixed side 10, an orthogonal projection of the boundary of the prism layer 26 onto the backplane 29 in a direction perpendicular to the display panel at least partially overlaps with an orthogonal projection of the boundary of the DBEF film material onto the backplane 29 in a direction perpendicular to the display panel. Exemplarily, an orthogonal projection of the boundary of the prism layer 26 onto the backplane 29 in a direction perpendicular to the display panel at least partially overlaps with an orthogonal projection of the boundary of the DBEF film material onto the backplane 29 in a direction perpendicular to the display panel. Exemplarily, an orthogonal projection of the boundary of the prism layer 26 onto the backplane 29 in a direction perpendicular to the display panel completely overlaps with an orthogonal projection of the boundary of the DBEF film material onto the backplane 29 in a direction perpendicular to the display panel.

[0158] Illustratively, on the film material fixing side 10, the orthogonal projection onto the backplane 29 of the boundary of the prism layer 26 and / or the boundary of the DBEF film material in the direction perpendicular to the display panel at least partially overlaps with the orthogonal projection onto the backplane 29 of the boundary of the color conversion film layer 23 in the direction perpendicular to the display panel. Designed in this manner, it is easy for the prism layer 26, the DBEF film material, and the color conversion layer 23 to be fixed on the film material fixing side 10.

[0159] It should be noted that the parameter d1 takes into consideration the width of the expansion space, and the larger the expansion space, the larger the corresponding value of d1. The measured brightness of the structure excluding the display panel in the display module is the measured brightness when the DBEF film material is installed. The higher the brightness of the display module, the more light source rays that need to be integrated. Therefore, the higher the brightness of the display module, the wider the width of the fluorescent material layer 25 that needs to be printed. The unit of the calculated X2 is mm. The unit of the calculated X is mm.

[0160] Exemplarily, a specific method for measuring the luminance L includes, when the display panel is not assembled after the assembly of the optical film material is completed, using a backlight measurement device (e.g., CA310) to measure the backlight luminance of the optical film material on the side where the target portion is located, opposite to the color conversion film layer, to obtain a corresponding luminance value L. As an example of measuring the L value on the film material fixing side, the backlight measurement device is used to select several measurement points on the film material fixing side, measure the luminance of the measurement points, and calculate the average value to obtain the L value corresponding to the film material fixing side. Exemplarily, when measuring using a measurement unit in the backlight measurement device, the edge of the measurement unit is aligned with the boundary of the display area, and the measurement unit measures the light emitted by the display area, selects several measurement points, and measures the luminance of each measurement point while avoiding the position where corresponding different sides in the display area intersect.

[0161] Exemplarily, the widths of the second portion 252 and the fourth portion 254 of the fluorescent material layer 25 are calculated as follows: Y is 0.61 mm, d1 is 2.55 mm, d2 is 0.51 mm, and X1 is calculated to be equal to 3.05 mm; L is 4400 nit, and X2 is calculated to be equal to 5.07 mm; X3 is 6.4 mm, and X is calculated to be equal to 14.52 mm.

[0162] For example, when calculating the fixed side portion 251, d1 is equal to 0, so X1 is equal to 0. If no inner frame is provided on the film material fixed side 10, X3 is equal to 0. Therefore, X corresponding to the fixed side portion 251 is equal to X2.

[0163] The widths of the fixed part 251, the second part 252, the third part 253 and the fourth part 254 calculated according to the above method take into account the width of the expansion space, the brightness of the display module and the width of the middle frame 21, so that the calculated widths of each part can adaptively compensate the color temperature of the display module at each side and achieve the color temperature uniformity of the display module. At the same time, the display failure caused by the yellowing of the edge of the display module due to the fluorescent material layer 25 being too wide can be avoided.

[0164] In some embodiments, the maximum width of the middle portion in a direction parallel to the reflective surface of the reflective sheet and perpendicular to the boundary of the central area on the side where the target portion is located is less than or equal to 8 mm.

[0165] In some embodiments, the inner frame includes a first portion located on a side of the light guide plate and a second portion covering at least a part of an edge of the first surface; The light guide plate has a target boundary on a side where the at least some edges are located, and the width of the at least some edges is 10mm or less in a direction parallel to the light guide plate and perpendicular to the target boundary. Since the width of the at least some edges is 10mm or less, it is advantageous to reduce the frame width of the display module and improve the user experience.

[0166] As shown in Figures 6 and 7, in some embodiments, in the central region 241, the minimum width of the third portion 253 is set to 4 mm or less, and the minimum width of the second portion 252 and / or the fourth portion 254 is set to 9 mm or less.

[0167] In the central region 241, in a direction parallel to the reflective sheet 24, In a direction perpendicular to the boundary of the reflective sheet 24 located on the same side as the third portion 253, the minimum width of the third portion 253 is 4 mm or less, in a direction perpendicular to the boundary of the reflective sheet 24 located on the same side as the second portion 252, the minimum width of the second portion 252 is 9 mm or less, and in a direction perpendicular to the boundary of the reflective sheet 24 located on the same side as the fourth portion 254, the minimum width of the fourth portion 254 is 9 mm or less.

[0168] According to the above setting manner, the fluorescent material layer 25 can adaptively compensate the color temperature of the display module on each side, and achieve the color temperature uniformity of the display module.

[0169] As shown in FIG. 6, in some embodiments, the lamp bar 22 is located on the film material fixed side 10 .

[0170] Exemplarily, the lamp bar 22 may be located on the non-film material fixing side 11 .

[0171] By setting the above-mentioned lamp bar 22 to be positioned on the film material fixing side 10, the width of the display module on the non-film material fixing side 11 can be effectively reduced, which is advantageous for the development of narrower frame structures for the display module.

[0172] In some embodiments, the lamp bar 22 includes a lamp bar capable of emitting blue light, the fluorescent material layer 25 includes a yellow fluorescent material layer 25, and the color conversion film layer 23 includes a red-green quantum dot film.

[0173] Exemplarily, the lamp bar 22 includes a number of blue light LEDs.

[0174] Illustratively, the red-green quantum dot film contains scattering particles, such as balls of silicon dioxide, etc., which are advantageous for scattering light rays.

[0175] A lamp bar capable of emitting blue light is arranged, and the fluorescent material layer 25 includes a yellow fluorescent material layer 25, so that the blue light emitted by the lamp bar 22 can excite the yellow fluorescent material layer 25 to generate white light.

[0176] The light emission principle of quantum dot film is that the carriers in the quantum dot material receive external energy, reach an excited state, and release energy in the process of the carriers recovering to the ground state, and such energy is usually released in the form of light. Different quantum dot materials emit light of different bands when excited by an external excitation light source, and red light is emitted when the red light quantum dot material is excited by the blue light emitted by the blue light source, and green light is emitted when the green light quantum dot material is excited by the blue light emitted by the blue light source.

[0177] Four cases in which the mass percentage of the ink and the phosphor powder is 100:40, 100:35, 100:30, and 100:25 will be comparatively described.

[0178] 7, in Comparative Example 1, the width of the fixed portion 251 of the fluorescent material layer is set to 10.04 mm, the width of the second portion 252 is set to 17.08 mm, the width of the third portion 253 is set to 5.13 mm, and the width of the fourth portion 254 is set to 17.09 mm. When the fluorescent material layer is disposed with such widths, the phenomenon of excessive blue light leakage around the display module is not effectively improved in any of the above four ratios.

[0179] 7, the width of the fixed portion 251 of the fluorescent material layer is set to 7.71 mm, the width of the second portion 252 is set to 17.80 mm, the width of the third portion 253 is set to 10.04 mm, and the width of the fourth portion 254 is set to 17.58 mm. When the fluorescent material layer is set to such widths, a yellow bias phenomenon occurs around the display module in any of the above four ratios.

[0180] 7, the width of the fixed portion 251 of the fluorescent material layer is set to 7.71 mm, the width of the second portion 252 is set to 16.70 mm, the width of the third portion 253 is set to 9.24 mm, and the width of the fourth portion 254 is set to 16.70 mm. When the fluorescent material layer is set to such widths, a yellow bias phenomenon occurs around the display module in all of the above four ratios.

[0181] 7, the width of the fixed portion 251 of the fluorescent material layer is set to 5.99 mm, the width of the second portion 252 is set to 14.45 mm, the width of the third portion 253 is set to 8.67 mm, and the width of the fourth portion 254 is set to 15.44 mm. Of the four ratios above, when the mass percentage of the ink and the phosphor powder is 100 and 25, the effect of improving display defects caused by blue light leakage around the display module is optimal.

[0182] An embodiment of the present disclosure provides a display module, the display module including a non-film material fixed side, and further including a light source, a compensation structure, a color conversion film layer, an optical film material, and a display panel, which are sequentially stacked, and the light emitted by the light source can be transmitted through the color conversion film layer and the optical film material and enter the display panel; a side of the compensation structure facing the color conversion film layer includes a central region and a peripheral region surrounding the central region, an orthogonal projection of the central region onto a plane on which a light output surface of the display panel is located overlaps with a display region of the display panel, and an orthogonal projection of the peripheral region onto the plane on which the light output surface of the display panel is located at least partially overlaps with a non-display region of the display panel; a fluorescent material layer is provided in the peripheral region, the fluorescent material layer absorbs light rays from the light source and emits target light rays, and at least a portion of the fluorescent material layer extends to the central region; On the non-film material fixing side, there is a first distance between an orthogonal projection of a boundary of the optical film material onto a plane on which the display panel is located and an orthogonal projection of a boundary of the display area adjacent to the boundary of the optical film material onto the plane, and in a direction parallel to the plane, the fluorescent material layer has a first width in a direction perpendicular to the boundary of its adjacent central area, and the first width is negatively correlated with the first distance.

[0183] Exemplarily, in a specific measurement, when the first distance is measured, the extension direction of a first line segment to be measured (i.e., a line segment corresponding to the first distance to be measured) is perpendicular to the boundary of the display area, and when the first width is measured, the orthogonal projection of a second line segment to be measured (i.e., a line segment corresponding to the first width to be measured) onto a plane on which the display panel is located at least partially overlaps with the first line segment to be measured.

[0184] If the display panel boundary and the corresponding central region boundary are curved, the boundary perpendicular to the display region and the boundary perpendicular to the central region can be considered as tangents perpendicular to the corresponding curved boundaries.

[0185] Illustratively, the first width is inversely proportional to the first distance.

[0186] According to the specific structure of the above display module, in the display module of the embodiment of the present disclosure, a fluorescent material layer 25 is provided in the peripheral region of the compensation structure, and the fluorescent material layer 25 can absorb light from the light source and emit target light, effectively improving the utilization efficiency of light from the light source in the peripheral region, and improving the problem of poor display around the LCD display caused by light rays biased to the light source color appearing around the display module, making the backlight color temperature of the entire display module more uniform, and improving the visual effect.

[0187] In the display module according to the embodiment of the present disclosure, at least a portion of the fluorescent material layer 25 is configured to extend to the central region, thereby effectively improving the utilization efficiency of light from the light source at the edge of the central region, and further improving the problem of poor display around the LCD display caused by light biased toward the light source color appearing around the display module.

[0188] In the display module according to the embodiment of the present disclosure, on the non-film material fixing side, there is a first distance between the orthogonal projection of the boundary of the optical film material onto a plane on which the display panel is located and the orthogonal projection of the boundary of the display area adjacent to the boundary of the optical film material onto the plane, and in a direction parallel to the plane, the fluorescent material layer has a first width in a direction perpendicular to the boundary of the adjacent central area, and the first width is set to have a negative correlation with the first distance, thereby making the backlight color temperature of the entire display module more uniform and improving the visual effect.

[0189] It should be noted that in some embodiments, the fluorescent material layers on both sides of the crossing boundary of the display module may be arranged to be in contact with each other, and the optical boundaries on both sides of the display module may be arranged to be in crossing with each other, so that it is difficult to determine the corresponding first distance and first width. Therefore, in such a case, the position of the crossing boundary of both sides of the display module needs to be avoided when measuring the first distance and the first width, or the negative correlation does not take into account the position where it is difficult to determine the first distance and the first width.

[0190] In some embodiments, the display module further comprises a film material fixing side, and the optical film material is fixed to the film material fixing side; In a direction parallel to the display panel, the minimum width of the fluorescent material layer located on the film material fixing side in a direction perpendicular to the boundary of its adjacent central region is smaller than the minimum width of the fluorescent material layer located on the non-film material fixing side in a direction perpendicular to the boundary of its adjacent central region.

[0191] On the film material fixing side 10, there is no expansion space between the optical film material and the middle frame 21, and the light emitted by the light source can be reflected multiple times on the film material fixing side 10 to realize multiple excitations to the color conversion film layer 23, so that the degree of polarization on the film material fixing side 10 of the display module is smaller than that on the non-film material fixing side 11. Therefore, in the display module according to the embodiment of the present disclosure, the width of the fluorescent material layer located on the film material fixing side in the direction perpendicular to the boundary of its adjacent central region in the direction parallel to the display panel is set to be the smallest, so that the backlight color temperature of the entire display module becomes more uniform and the visual effect becomes better.

[0192] In some embodiments, the light source comprises: The light guide plate includes a light guide plate and a lamp bar, the light guide plate includes a first surface and a second surface facing each other, and a side surface located between the first surface and the second surface, the lamp bar is located on a side surface of the light guide plate, and light emitted by the lamp bar is incident on the light guide plate from the side surface of the light guide plate, the color conversion film layer is located on a first surface of the light guide plate, and the optical film material is located on a side of the color conversion film layer opposite the light guide plate; The compensation structure includes a reflective sheet located on a second surface of the light guide plate, and the fluorescent material layer is disposed on the peripheral area of ​​the reflective sheet.

[0193] In some embodiments, the light source includes a lamp plate, the lamp plate being located on the opposite side of the color conversion film layer from the optical film material, and the lamp plate being multiplexed as the compensation structure.

[0194] In some embodiments, the fluorescent material layer includes a mixed material layer of ink and phosphor powder, and the mass percentage of the ink and the phosphor powder is 100 / 24.5 to 100 / 40.5.

[0195] In some embodiments, the thickness of the fluorescent material layer in a direction perpendicular to the color conversion film layer is 5 μm to 6 μm.

[0196] In some embodiments, the display module further comprises a film material fixing side, and the optical film material is fixed to the film material fixing side; The fluorescent material layer includes a fixed side portion, the fixed side portion being located on a fixed side of the film material, the fixed side portion being located only in the peripheral region.

[0197] In some embodiments, the fluorescent material layer includes a non-fixed portion, the non-fixed portion being located on the non-film material fixed side, the non-fixed portion being located in the peripheral region and the central region.

[0198] In some embodiments, the shape of the display area includes a rectangular shape, and the outlines of the first surface and the second surface of the light guide plate are rectangular; the light guide plate includes a first side, a second side, a third side, and a fourth side that are adjacent to each other in sequence, the first side is located on the side where the film material is fixed, and the second side, the third side, and the fourth side are all located on the side where the film material is not fixed; The non-fixed side portion includes a second portion, a third portion and a fourth portion, the second portion being adjacent to the second side surface, the third portion being adjacent to the third side surface, and the fourth portion being adjacent to the fourth side surface.

[0199] In some embodiments, the shape of the display area is rectangular, the display area includes a long boundary and a wide boundary, the film material fixing side and the long boundary are located on the same side, and in the central area, the minimum width of the second portion is greater than the minimum width of the third portion, and the minimum width of the fourth portion is greater than the minimum width of the third portion.

[0200] In some embodiments, the layout density of the phosphor material layer decreases along a direction from the peripheral region towards the central region.

[0201] In some embodiments, the fixed portion includes a first layout region and a second layout region; a layout density m1 of the fixed side portion in the first layout region satisfies m1≧80%, and a layout density m2 of the fixed side portion in the second layout region satisfies 30%≦m2≦50%, The boundary of the second layout region close to the central region overlaps with the boundary of the central region, the second layout region is located between the central region and the first layout region, and the boundary of the second layout region away from the central region overlaps with the boundary of the first layout region close to the central region.

[0202] In some embodiments, the third portion includes a third layout region, a fourth layout region, and a fifth layout region, which are arranged in sequence; a layout density m3 of the third portion in the third layout region satisfies m3≧80%, a layout density m4 of the third portion in the fourth layout region satisfies 30%≦m4≦50%, and a layout density m5 of the third portion in the fifth layout region satisfies 15%≦m5≦25%, a minimum distance d1 between an orthogonal projection of a boundary of the third layout region away from the central region onto the light guide plate and a light guiding boundary located on the same side of the light guide plate as the third layout region satisfies d1≦1.5 mm; The minimum distance d2 between the orthographic projection of the boundary separated from the central region of the fourth layout region onto the light guide plate and the light guiding boundary satisfies 1.5 mm < d2 ≤ 5 mm. The minimum distance d3 between the orthographic projection of the boundary separated from the central region of the fifth layout region onto the light guide plate and the light guiding boundary satisfies 5 mm < d3 ≤ 9 mm.

[0203] In some embodiments, the second part includes a sixth layout region, a seventh layout region, an eighth layout region, and a ninth layout region that are sequentially arranged. The layout density m6 of the second part in the sixth layout region satisfies m6 ≥ 80%, the layout density m7 of the second part in the seventh layout region satisfies 30% ≤ m7 ≤ 50%, the layout density m8 of the second part in the eighth layout region satisfies 15% ≤ m8 ≤ 25%, and the layout density m9 of the second part in the ninth layout region satisfies 5% ≤ m9 < 15%. The minimum distance d4 between the orthographic projection of the boundary separated from the central region of the sixth layout region onto the light guide plate and the light guiding boundary located on the same side as the sixth layout region in the light guide plate satisfies d4 ≤ 1.5 mm. The minimum distance d5 between the orthographic projection of the boundary separated from the central region of the seventh layout region onto the light guide plate and the light guiding boundary satisfies 1.5 mm < d5 ≤ 5 mm. The minimum distance d6 between the orthographic projection of the boundary separated from the central region of the eighth layout region onto the light guide plate and the light guiding boundary satisfies 5 mm < d6 ≤ 9 mm. The minimum distance d7 between the orthographic projection of the boundary separated from the central region of the ninth layout region onto the light guide plate and the light guiding boundary satisfies 9 mm < d7 ≤ 11 mm. The layout methods of the fourth part and the second part are the same.

[0204] In some embodiments, the display module further includes a middle frame, and the middle frame is provided to surround at least the non-film material fixing side. the inner frame covers a part of an edge of the light guide plate, the color conversion film layer includes an expired portion, and on the non-film material fixing side, an orthogonal projection of the expired portion onto the light guide plate is located inside an orthogonal projection of the middle frame onto the light guide plate; The optical film material includes a prism layer and a brightness enhancement film, the prism layer is located between the color conversion film layer and the brightness enhancement film, and on the non-film material fixed side, the orthogonal projection of the prism layer onto the color conversion film layer and / or the orthogonal projection of the brightness enhancement film onto the color conversion film layer does not overlap the expired portion.

[0205] In some embodiments, the display module further includes a middle frame, the middle frame including a first portion located on a side of the light guide plate and a second portion covering at least a part of an edge of the first surface, and a width X of a target portion of the fluorescent material layer satisfies X=X1+X2+X3; X1 is,

number

number

[0206] In some embodiments, the maximum width of the middle portion in a direction parallel to the reflective surface of the reflective sheet and perpendicular to the boundary of the central area on the side where the target portion is located is less than or equal to 8 mm.

[0207] In some embodiments, the middle frame includes a first portion located on a side of the light guide plate and a second portion covering at least a part of an edge of the first surface; The light guide plate has a target boundary on the side on which the at least some edges are located, and in a direction parallel to the light guide plate and perpendicular to the target boundary, the at least some edges have a width of 10 mm or less.

[0208] In some embodiments, in the central region, the third portion has a minimum width of 4mm or less and the second portion and / or the fourth portion has a minimum width of 9mm or less.

[0209] In some embodiments, the lamp bar is located on the film material fixed side.

[0210] In some embodiments, the lamp bar includes a lamp bar capable of emitting blue light, the fluorescent material layer includes a yellow fluorescent material layer, and the color conversion film layer includes a red-green quantum dot film.

[0211] An embodiment of the present disclosure further provides a display device including a display module according to the above embodiment.

[0212] In the display module of the above embodiment, a fluorescent material layer 25 is provided in the peripheral region of the compensation structure, and the fluorescent material layer 25 can absorb light from the light source and emit target light, effectively improving the utilization efficiency of light from the light source in the peripheral region, and improving the problem of poor display around the LCD display caused by light rays biased towards the light source color around the display module, making the backlight color temperature of the entire display module more uniform, and improving the visual effect.

[0213] In the display module of the above embodiment, at least a portion of the fluorescent material layer 25 is set to extend to the central region, thereby effectively improving the efficiency of utilizing light from the light source at the edge of the central region, and further improving the problem of poor display around the LCD display caused by light biased toward the light source color appearing around the display module.

[0214] When the display device according to the embodiment of the present disclosure includes the above-mentioned display module, it also has the above-mentioned beneficial effects, and the description thereof will be omitted here.

[0215] In the present disclosure, the rectangular shape may be a right-angled rectangular shape, a rounded rectangular shape, or a rectangular shape in which some of the vertices are set to round corners. A right-angled rectangular shape is a rectangular shape in the normal sense, and all sides of the rectangular shape are line segments.

[0216] In addition, the display device may be any product or component having a display function, such as a television, a display, a digital photo frame, a mobile phone, a tablet, etc., where the display device further includes a flexible circuit board, a printed circuit board, a backplane, etc.

[0217] In the embodiments of the methods of the present disclosure, the numbers of the steps cannot be used to limit the priority of the steps, and for those skilled in the art, without paying creative labor, the change in the priority of the steps is also within the scope of protection of the present disclosure.

[0218] In addition, each embodiment in this specification is described in a progressive manner, and the same similar parts between each embodiment can be referred to each other, and the differences between each embodiment and other embodiments are described in detail. For the correlations between each embodiment, please refer to the partial description of the product embodiment.

[0219] Unless otherwise defined, technical or scientific terms used in this disclosure should have the ordinary meaning understood by a person of ordinary skill in the field to which this disclosure belongs. The terms "first", "second" and similar terms used in this disclosure do not denote order, number, or importance, but are used to distinguish different components. Similar terms such as "comprise" or "have" mean that the element or object appearing before the term covers the elements or objects listed after the term and their equivalents without excluding other elements or objects. Similar terms such as "connect", "couple" or "connect" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Top", "bottom", "left", "right", etc. are used only to indicate relative positional relationships, and when the absolute positions of the described objects change, the relative positional relationships may change accordingly.

[0220] When an element, such as a layer, film, region, or substrate, is described as being "on" or "under" another element, it will be understood that the element may be "directly" located "on" or "under" the other element, or there may be intermediate elements.

[0221] In the above description of the embodiments, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

[0222] The above description is merely a specific embodiment of the present disclosure, but the scope of protection of the present disclosure is not limited thereto, and any technical personnel familiar with the present technology can easily think of modifications and replacements within the scope of the technology disclosed in the present disclosure, which should be included in the scope of protection of the present disclosure. Therefore, the scope of protection of the present disclosure should be in accordance with the claims.

Claims

1. A display module including a film material fixing side and a non-film material fixing side, The display device further includes a light source, a compensation structure, a color conversion film layer, an optical film material, and a display panel, which are sequentially stacked, The light emitted from the light source can be transmitted through the color conversion film layer and the optical film material and then incident on the display panel, The optical film material is fixed to the film material fixing side, a compensation structure facing the color conversion film layer includes a central region and a peripheral region surrounding the central region, an orthogonal projection of the central region onto a plane on which a light-emitting surface of the display panel is located overlaps with a display region of the display panel, and an orthogonal projection of the peripheral region onto the plane on which the light-emitting surface of the display panel is located at least partially overlaps with a non-display region of the display panel; a fluorescent material layer is provided in the peripheral region, the fluorescent material layer absorbs light rays from the light source and emits target light rays, and at least a portion of the fluorescent material layer extends to the central region; a display module in which, in a direction parallel to the display panel, the minimum width of the fluorescent material layer located on the film material fixing side in a direction perpendicular to the boundary of its adjacent central region is smaller than the minimum width of the fluorescent material layer located on the non-film material fixing side in a direction perpendicular to the boundary of its adjacent central region.

2. The light source is The light guide plate includes a light guide plate and a lamp bar, the light guide plate having a first surface and a second surface facing each other and a side surface located between the first surface and the second surface, the lamp bar is located on a side surface of the light guide plate, and light emitted from the lamp bar is incident on the light guide plate from the side surface of the light guide plate, the color conversion film layer is located on a first surface of the light guide plate, and the optical film material is located on a side of the color conversion film layer opposite the light guide plate; The compensation structure includes a reflective sheet, the reflective sheet being located on the second surface of the light guide plate, and the fluorescent material layer being disposed in the peripheral area of the reflective sheet. The display module according to claim 1 .

3. The fluorescent material layer includes a mixed material layer of ink and fluorescent powder, and the mass percentage of the ink to the fluorescent powder is 100 / 24.5 to 100 / 40.

5. The display module according to claim 1 .

4. The thickness of the fluorescent material layer in the direction perpendicular to the color conversion film layer is 5 μm to 6 μm. The display module according to claim 1 .

5. The fluorescent material layer includes a fixed-side portion, the fixed-side portion being located on a fixed side of the film material, and the fixed-side portion being located only in the peripheral region. The display module according to claim 2 .

6. The fluorescent material layer includes a non-fixed side portion, the non-fixed side portion being located on the non-film material fixed side, and the non-fixed side portion being located in the peripheral region and the central region. The display module according to claim 5 .

7. a shape of the display area includes a rectangular shape, and contours of the first surface and the second surface of the light guide plate are rectangular; the light guide plate includes a first side surface, a second side surface, a third side surface, and a fourth side surface that are adjacent to each other in sequence, the first side surface being located on the film material fixing side, and the second side surface, the third side surface, and the fourth side surface being located on the non-film material fixing side; The non-fixed side portion includes a second portion, a third portion, and a fourth portion, the second portion being adjacent to the second side surface, the third portion being adjacent to the third side surface, and the fourth portion being adjacent to the fourth side surface. The display module according to claim 6.

8. The display area has a rectangular shape, includes a long boundary and a wide boundary, the film material fixing side and the long boundary are located on the same side, and in the central area, the minimum width of the second portion is larger than the minimum width of the third portion, and the minimum width of the fourth portion is larger than the minimum width of the third portion. The display module according to claim 7.

9. the layout density of the fluorescent material layer decreases along a direction from the peripheral region toward the central region; the fixed portion includes a first layout area and a second layout area; a layout density m1 of the fixed side portion in the first layout region satisfies m1≧80%, and a layout density m2 of the fixed side portion in the second layout region satisfies 30%≦m2≦50%, a boundary of the second layout region close to the central region overlaps with a boundary of the central region, the second layout region is located between the central region and the first layout region, and a boundary of the second layout region away from the central region overlaps with a boundary of the first layout region close to the central region; the third portion includes a third layout region, a fourth layout region, and a fifth layout region, which are sequentially arranged; a layout density m3 of the third portion in the third layout region satisfies m3≧80%, a layout density m4 of the third portion in the fourth layout region satisfies 30%≦m4≦50%, and a layout density m5 of the third portion in the fifth layout region satisfies 15%≦m5≦25%, a minimum distance d1 between an orthogonal projection of a boundary of the third layout region away from the central region onto the light guide plate and a light guiding boundary located on the same side of the light guide plate as the third layout region satisfies d1≦1.5 mm; a minimum distance d2 between an orthogonal projection of a boundary of the fourth layout region away from the central region onto the light guide plate and the light guide boundary satisfies 1.5 mm<d2≦5 mm; a minimum distance d3 between an orthogonal projection of a boundary of the fifth layout region away from the central region onto the light guide plate and the light guiding boundary satisfies 5 mm<d3≦9 mm; the second portion includes a sixth layout region, a seventh layout region, an eighth layout region, and a ninth layout region, which are sequentially arranged; a layout density m6 of the second portion in the sixth layout region satisfies m6≧80%, a layout density m7 of the second portion in the seventh layout region satisfies 30%≦m7≦50%, a layout density m8 of the second portion in the eighth layout region satisfies 15%≦m8≦25%, and a layout density m9 of the second portion in the ninth layout region satisfies 5%≦m9<15%; a minimum distance d4 between an orthogonal projection of a boundary of the sixth layout region away from the central region onto the light guide plate and a light guiding boundary located on the same side of the light guide plate as the sixth layout region satisfies d4≦1.5 mm; a minimum distance d5 between an orthogonal projection of a boundary of the seventh layout region away from the central region onto the light guide plate and the light guide boundary satisfies 1.5 mm<d5≦5 mm; a minimum distance d6 between an orthogonal projection of a boundary of the eighth layout region away from the central region onto the light guide plate and the light guiding boundary satisfies 5 mm<d6≦9 mm; a minimum distance d7 between an orthogonal projection of a boundary of the ninth layout region away from the central region onto the light guide plate and the light guide boundary satisfies 9 mm<d7≦11 mm; The layout method of the fourth portion and the second portion is the same. The display module according to claim 7.

10. The display module further includes an inner frame, the inner frame being provided to surround at least the non-film material fixing side, the inner frame covers a part of an edge of the light guide plate, the color conversion film layer includes an expired portion, and on the non-film material fixing side, an orthogonal projection of the expired portion onto the light guide plate is located inside an orthogonal projection of the inner frame onto the light guide plate; In a direction parallel to the light guide plate, the minimum width of the lapsed portion is 1 mm to 1.5 mm; The optical film material includes a prism layer and a brightness enhancement film, and the prism layer is located between the color conversion film layer and the brightness enhancement film. On the non-film material fixing side, an orthogonal projection of the prism layer onto the color conversion film layer and / or an orthogonal projection of the brightness enhancement film onto the color conversion film layer does not overlap the lapsed portion. The display module according to claim 7.

11. the display module further includes a middle frame, the middle frame including a first portion located on a side surface of the light guide plate and a second portion covering at least a part of an edge of the first surface, and a width X of a target portion of the fluorescent material layer satisfies X=X1+X2+X3; X1 is, [Equation 1] Fulfilling Y is the distance between the display panel and the color conversion film layer in a direction perpendicular to the display panel, d1 is the width by which the boundary of the color conversion film layer exceeds the boundary of the prism layer on the side where the target portion is located, and d2 is the thickness of the entire optical film material in the direction perpendicular to the display panel, X2 is, [Equation 2] Fulfilling L is the measured luminance of the structure of the display module excluding the display panel on the side where the target portion is located; X3 is the maximum width of the middle frame in a direction parallel to the reflective surface of the reflective sheet on the side where the target portion is located and in a direction perpendicular to the boundary of the central region on the side where the target portion is located; The target portion includes any one of the fixed portion, the second portion, the third portion, and the fourth portion. The display module according to claim 7.

12. In a direction parallel to the reflective surface of the reflective sheet and perpendicular to the boundary of the central region on the side where the target portion is located, the maximum width of the middle frame is 8 mm or less; the light guide plate has a target boundary on a side where the at least some edge is located, and a width of the at least some edge in a direction parallel to the light guide plate and perpendicular to the target boundary is 10 mm or less; In the central region, the minimum width of the third portion is 4 mm or less, and the minimum width of the second portion and / or the fourth portion is 9 mm or less. The display module of claim 11.

13. The lamp bar includes a lamp bar capable of emitting blue light, the fluorescent material layer includes a yellow fluorescent material layer, and the color conversion film layer includes a red-green quantum dot film.

13. The display module of claim 12.

14. A display module including a non-film material fixing side, The display device further includes a light source, a compensation structure, a color conversion film layer, an optical film material, and a display panel, which are sequentially stacked, and light emitted from the light source is transmitted through the color conversion film layer and the optical film material and incident on the display panel; the compensation structure includes a central region and a peripheral region surrounding the central region on a side facing the color conversion film layer; an orthogonal projection of the central region onto a plane in which a light-emitting surface of the display panel is located overlaps with a display region of the display panel, and an orthogonal projection of the peripheral region onto the plane in which the light-emitting surface of the display panel is located at least partially overlaps with a non-display region of the display panel; a fluorescent material layer is provided in the peripheral region, the fluorescent material layer absorbs light rays from the light source and emits target light rays, and at least a portion of the fluorescent material layer extends to the central region; a first distance is defined between an orthogonal projection of a boundary of the optical film material onto a plane on which the display panel is located and an orthogonal projection of a boundary of the display area adjacent to the boundary of the optical film material onto the plane on the non-film material fixing side, and in a direction parallel to the plane, the fluorescent material layer has a first width in a direction perpendicular to the boundary of its adjacent central area, and the first width is negatively correlated with the first distance.

15. A display device comprising a display module according to any one of claims 1 to 14.

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