Display device
By setting a filter in the deformation area of the light guide plate, the problems of light leakage and uneven brightness caused by the bonding of the driver chip in the display panel are solved. By adopting a side-lit backlight module and filter structure, the brightness uniformity and cost-effectiveness of the display panel are achieved.
Patent Information
- Application Number
- CN202310332998.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-03-24
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2043-03-24
AI Technical Summary
The deformation of the display panel due to different expansion rates during the bonding process of the driver chip leads to light leakage and uneven brightness. Existing technologies have not been able to effectively solve this problem by adjusting the brightness of the LEDs in the deformed areas.
A filter section is set in the corresponding deformation area of the light guide plate to reduce light irradiation. A low-cost side-lit backlight module is adopted. The filter section includes an annular groove or ink dot structure to adjust the light intensity to compensate for light leakage.
It effectively alleviates the light leakage problem of the display panel, improves display uniformity, and does not require changing the backlight module type or driver chip bonding device, thus reducing costs.
Smart Images

Figure CN116400533B_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of display, in particular to a display device. BACKGROUND
[0002] In recent years, due to the rapid development of electronic and information industries, the related products are also increasingly sophisticated. The portability of display panels has gradually become the focus of the industry. Therefore, the COG (Chip On Glass, chip fixed on the glass substrate) technology is also born, that is, the technology of binding the driving chip (Integrated Circuit) on the array substrate. The process of binding the driving chip on the array substrate needs to be heated and stamped, which can cause the substrate to be bent and deformed during the process of binding the driving chip on the array substrate. Due to the different expansion rates of the driving chip and the substrate, the substrate will eventually be bent towards the side of the driving chip, which can cause the liquid crystal to be deflected and disordered, and can cause the display panel to have a light leakage phenomenon.
[0003] The common solution adopts a direct backlight module and a local dimming technology to adjust the brightness of the lamp beads corresponding to the deformation area of the display panel. However, such a way can cause the display panel to have a brightness uneven phenomenon in a large area. SUMMARY
[0004] The purpose of the present application is to provide a display device to compensate for the light amount of the deformation area of the display panel, alleviate the light leakage problem of the display panel, prevent the brightness of the display panel from being uneven, and improve the display effect.
[0005] The present application discloses a display device, which comprises a display panel, a driving chip and a backlight module. The display panel and the backlight module are oppositely arranged, and the backlight module provides backlight for the display panel. The display panel comprises a display area and a non-display area, the non-display area is arranged around the display area, the driving chip is bound on the display panel and located in the non-display area. The backlight module comprises a back plate, a light source and a light guide plate. The light guide plate and the light source are arranged on the back plate. The light source faces the side surface of the light guide plate. The light guide plate is located between the display panel and the back plate. The display area of the display panel comprises a deformation area and a non-deformation area. The light guide plate is provided with a light filtering part corresponding to the deformation area. The light filtering part reduces the light irradiated to the deformation area.
[0006] Optionally, the orthographic projection of the light filtering part on the display panel covers the deformation area, and the area of the orthographic projection of the light filtering part on the display panel is greater than the area of the deformation area. The light filtering part comprises a plurality of annular grooves which are sleeved. The center of the annular groove corresponds to the center of the deformation area.
[0007] Optionally, the cross section of the annular groove is V-shaped, and a direction extending outward from the center of the annular groove is a first direction; a plurality of the annular grooves are sleeved, and a slot width of each annular groove gradually increases along the first direction.
[0008] Optionally, the depth of the annular groove is 50-60 microns, and the slot width of the annular groove is 100-120 microns.
[0009] Optionally, the backlight module further comprises optical glue, and the optical glue is filled in the annular groove.
[0010] Optionally, the backlight module further comprises a first diffusion plate, the first diffusion plate is arranged on a side of the light guide plate away from the back plate, and the first diffusion plate completely covers the light guide plate; the first diffusion layer comprises a protection layer and a diffusion layer arranged in a stack, and the diffusion layer is located on a side of the protection layer away from the light guide plate; the diffusion layer comprises a plurality of diffusion particles, and a density of the diffusion particles corresponding to the deformation area of the diffusion layer is greater than a density of the diffusion particles corresponding to other areas of the diffusion layer.
[0011] Optionally, the light guide plate comprises a main body and a protruding portion, the protruding portion is arranged on a side of the main body facing the display panel, the protruding portion corresponds to the deformation area of the display panel, a side of the protruding portion away from the main body is arc-shaped, and the light filtering portion is arranged on a surface of the protruding portion.
[0012] Optionally, the light source comprises a plurality of lamp beads, the back plate comprises a main plate and a side plate, the side plate is arranged on an edge of the main plate, the light guide plate is arranged on the main plate, a plurality of lamp beads are arranged on the side plate at intervals and face the light guide plate, and the light filtering portion is located on a symmetry axis of two adjacent lamp beads and at an intersection of illumination areas of the two adjacent lamp beads.
[0013] Optionally, the light filtering portion comprises a plurality of annular regions sleeved, a direction extending outward from a center of the annular region is a second direction; a plurality of ink dots are arranged in each annular region, and areas of the ink dots in the annular region gradually decrease along the second direction.
[0014] Optionally, the light filtering portion comprises a plurality of annular regions sleeved, a direction extending outward from a center of the annular region is a second direction; a plurality of ink dots are arranged in each annular region, areas of the ink dots are equal, and densities of the ink dots in the annular region gradually decrease along the second direction.
[0015] Compared with the scheme of adopting a direct type backlight module and relieving the light leakage problem of the deformation area by adjusting the brightness of the lamp bead corresponding to the deformation area, the application sets a light filtering part at the position of the deformation area of the light guide plate, the light filtering part can reduce the light irradiated to the deformation area, thereby relieving the light leakage problem of the deformation area, and without changing the type of the backlight module, a side-in type backlight module with lower cost can be adopted; and the area corresponding to one lamp bead of the direct type backlight module is larger, and the area of the deformation area is smaller, and the area of the light leakage is smaller, and the scheme of the application will not cause the display panel to have different brightness in a larger area and the surrounding area, and improve the display uniformity of the display panel. BRIEF DESCRIPTION OF DRAWINGS
[0016] The accompanying drawings, which are included to provide a further understanding of the embodiments of the application and constitute a part of the specification, illustrate the embodiments of the application and together with the text of the specification serve to explain the principles of the application. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings. In the drawings:
[0017] Figure 1 is a schematic view of a first display device of an embodiment of the application;
[0018] Figure 2 is a cross-sectional view of a light filtering part of the first embodiment of the application;
[0019] Figure 3 is a plan view of a light filtering part of the first embodiment of the application;
[0020] Figure 4 is a schematic view of a light guide plate of the first embodiment of the application;
[0021] Figure 5 is a cross-sectional view of a first diffusion plate of the first embodiment of the application;
[0022] Figure 6 is a schematic view of a second diffusion plate of the first embodiment of the application;
[0023] Figure 7 is a schematic view of a backlight module of the first embodiment of the application;
[0024] Figure 8 is a schematic view of a reinforcing structure of the first embodiment of the application;
[0025] Figure 9 is an exploded schematic view of a reinforcing structure of the first embodiment of the application;
[0026] Figure 10 is a schematic diagram of a first light filtering part of a second embodiment of the present application;
[0027] Figure 11 is a schematic diagram of a second light filtering part of the second embodiment of the present application.
[0028] wherein 10, display device; 11, driving chip; 20, display panel; 21, array substrate; 22, liquid crystal; 23, color film substrate; 24, deformation area; 25, non-deformation area; 200, substrate; 210, substrate main body part; 220, second abutment structure; 221, fourth face; 222, fifth face; 223, sixth face; 224, second left abutment structure; 225, second right abutment structure; 226, groove; 227, active switch layer; 300, backlight module; 310, back plate; 311, main plate; 312, side plate; 320, light source; 321, lamp bead; 330, light guide plate; 331, main body part; 332, protruding part; 333, light filtering part; 334, annular groove; 410, first diffusion plate; 420, second diffusion plate; 431, protective layer; 432, diffusion layer; 433, diffusion particle; 500, reinforcing structure; 510, reinforcing main body part; 520, first abutment structure; 531, first face; 532, second face; 533, third face; 541, first left abutment structure; 542, first right abutment structure; 610, annular area; 620, ink dot. DETAILED DESCRIPTION
[0029] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting; it is also possible that the terms "comprising", "comprise" and "including" are used herein not to exclude, for example, additional steps, integers, elements, steps, operations, units, components, and / or groups thereof that consist of the steps, integers, elements, steps, operations, units, components and / or groups thereof as here described.
[0030] In the description of the present application, the terms "first", "second", "third", etc. are used only for the purpose of description, and should not be understood as indicating relative importance or implying that the indicated technical features are limited to one or more. Thus, unless otherwise specified, the features defined with "first", "second", etc. can explicitly or implicitly include one or more of the features; the meaning of "a plurality of" is two or more. The term "comprising" and any variation thereof means inclusive, and there can be one or more other features, integers, steps, operations, units, components, and / or combinations thereof.
[0031] In addition, terms such as "center", "transverse", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicating the orientation or positional relationship are described based on the orientation or relative position relationship shown in the drawings, and are only for the convenience of the simplified description of the present application, and are not intended to indicate that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.
[0032] In addition, unless otherwise clearly specified and limited, the terms "mount", "connect", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0033] The present application will be described in detail below with reference to the drawings and optional embodiments.
[0034] Figure 1 is a schematic diagram of a first display device according to an embodiment of the present application, as Figure 1 As shown in the figure, the present application discloses a display device 10, which comprises a display panel 20, a driving chip 11 and a backlight module 300, the display panel 20 and the backlight module 300 are oppositely arranged, and the backlight module 300 provides backlight for the display panel 20. The display panel 20 comprises a display area and a non-display area, the non-display area is arranged around the display area, the driving chip 11 is bound on the display panel 20 and located in the non-display area.
[0035] The backlight module 300 comprises a back plate 310, a light source 320 and a light guide plate 330, the light guide plate 330 and the light source 320 are both arranged on the back plate 310, and the light source 320 faces the side of the light guide plate 330, and the light guide plate 330 is located between the display panel 20 and the back plate 310; the display area of the display panel 20 comprises a deformation area 24 and a non-deformation area 25, and the deformation area 24 corresponds to the binding area of the driving chip 11, and the non-deformation area 25 is the area in the display area except the deformation area 24. The orthographic projection of the binding area of the driving chip 11 on the display panel is larger than the orthographic projection of the driving chip 11 on the display panel, the area of the deformation area 24 is not less than the area of the driving chip 11, the light guide plate 330 is provided with a light filtering part 333 corresponding to the deformation area 24, and the light filtering part 333 can reduce the light irradiated to the deformation area 24.
[0036] The display panel 20 comprises an array substrate 21, liquid crystal 22 and a color film substrate 23, the array substrate 21 and the color film substrate 23 are oppositely arranged, the liquid crystal 22 is arranged between the array substrate 21 and the color film substrate 23, and the driving chip 11 is bonded on the array substrate 21.
[0037] After the driving chip 11 is bonded on the display panel 20, the array substrate 21 will be bent and deformed, although the driving chip 11 is bonded in the non-display area of the display panel 20 corresponding to the array substrate 21, the bending and deformation will extend to the display area of the display panel 20 corresponding to the array substrate 21, so that the position corresponding to the driving chip 11 in the display area of the display panel 20 corresponding to the array substrate 21 is also bent and deformed, that is, the position of the deformation area 24.
[0038] At the deformation area 24, the deflection of the liquid crystal 22 between the array substrate 21 and the color film substrate 23 will be disturbed, so that the brightness of the deformation area 24 is greater than that of the non-deformation area 25 at the same gray level, and the display panel 20 will leak light.
[0039] The deformation area 24 includes two deformation areas corresponding to the two ends of the driving chip 11, and the light filtering part 333 also includes two light filtering parts corresponding to the two deformation areas 24.
[0040] The light filtering part 333 can reduce the light irradiated to the deformation area 24, thereby alleviating the light leakage problem of the deformation area 24.
[0041] Compared with the scheme of using a direct type backlight module 300 and adjusting the brightness of the lamp bead 321 corresponding to the deformation area 24 to alleviate the light leakage problem of the deformation area 24, the present application does not need to change the type of the backlight module 300, and can use a side-in type backlight module 300 with lower cost; and the area corresponding to one lamp bead 321 of the direct type backlight module 300 is larger, the area of the deformation area 24 is smaller, and the light leakage area is smaller, so that the scheme of adjusting the brightness of the lamp bead 321 corresponding to the deformation area 24 can alleviate the light leakage problem of the deformation area 24, but will cause the brightness of a large area of the display panel 20 to be different from that of the surrounding area, resulting in uneven display of the display panel 20.
[0042] Moreover, the scheme of the present application does not need to change the equipment parameters during bonding of the driving chip 11 to alleviate the bending of the display panel 20, and ensures the reliability of bonding of the driving chip 11 and the array substrate 21.
[0043] Embodiment 1:
[0044] Figure 2 is a cross-sectional enlarged schematic view of a first light filtering part of a first embodiment of the present application, Figure 3 is a plan view of the first light filtering part of the first embodiment of the present application, combined with Figures 2-3 As shown in the figure, the direction indicated by arrow A represents the first direction, and the dashed line corresponds to the center of the deformation area 24. The orthographic projection of the light filtering part 333 on the display panel 20 covers the deformation area 24, and the area of the orthographic projection of the light filtering part 333 on the display panel 20 is greater than the area of the deformation area 24, thereby ensuring that the light filtering part 333 can completely cover the light leakage of the deformation area 24 and avoiding the problem of light circle.
[0045] The light filtering part 333 in the embodiment includes a plurality of annular grooves 334 arranged in a sleeve manner, and the center of the annular groove 334 corresponds to the center of the deformation area 24.
[0046] When the light ray irradiates the deformation area 24 through the annular groove 334, multiple refractions will occur in the groove wall of the groove 226, and a part of the light ray will be consumed in the refraction process, thereby achieving the weakening of the intensity of the light ray. The cross section of the annular groove 334 can be U-shaped or V-shaped, and the embodiment mainly takes the cross section of the annular groove 334 as V-shaped as an example for introduction.
[0047] In addition, the light leakage of the deformation area 24 specifically manifests as the phenomenon that the brightness in the middle is higher and the brightness on the side is lower, that is, the display panel 20 corresponding to the deformation area 24 will appear a circular light leakage area. The brightness of the light at the center of the circle is higher, and the brightness gradually decreases along the direction extending along the radius, and the brightness at the edge of the circle is consistent with that of other areas of the display panel 20.
[0048] Therefore, the direction extending outward from the center of the circle is the first direction, and along the first direction, a plurality of annular grooves 334 arranged in a sleeve manner, the slot width of each annular groove 334 gradually increases. The width of the slot can be understood as the distance between the two peaks of the V-shaped, the wider the slot width, the wider the annular groove 334; the smaller the slot width, the narrower the annular groove 334.
[0049] The smaller the slot width of the annular groove 334 is, the more times the light is refracted in the annular groove 334 when the light passes through the annular groove 334, and the weaker the intensity of the emitted light is, and the darker the corresponding area of the display panel 20 is. The larger the slot width of the annular groove 334 is, the fewer times the light is refracted in the annular groove 334 when the light passes through the annular groove 334, and the stronger the intensity of the light is, and the brighter the corresponding area of the display panel 20 is. Thus, the light passing through the light filtering part 333 presents a trend of getting brighter from the middle to the side, so as to compensate for the problem that the light leakage of the deformation area 24 is brighter in the middle and darker on the side.
[0050] The annular groove 334 is too deep to allow the light to pass through normally, the groove 226 is too shallow to weaken the light well, the slot of the annular groove 334 is too narrow to allow the light to pass through normally, and the slot of the groove 226 is too wide to weaken the light well. Therefore, through experiments, the depth of the annular groove 334 is determined to be 50-60 μm, and the slot width of the annular groove 334 is determined to be 100-120 μm. Thus, the light leakage of the deformation area 24 can be compensated well.
[0051] The annular groove 334 can also be filled with optical glue to further weaken the intensity of the light passing through the light filtering part 333, and to prevent impurities from entering the annular groove 334 and affecting the propagation of the light.
[0052] Of course, the slot width of each annular groove 334 can be consistent, and the slot depth of each annular groove 334 gradually decreases along the first direction. Compared with the above-mentioned scheme in which the slot width of the annular groove 334 gradually increases along the first direction, in this scheme, only the slot depth of different annular grooves 334 needs to be adjusted when the groove is opened, and different width of the slot opening equipment does not need to be replaced.
[0053] Alternatively, the slot depth of each annular groove 334 gradually decreases along the first direction, and the slot width of each annular groove 334 gradually increases. Compared with the above-mentioned scheme in which the slot width of the annular groove 334 gradually increases along the first direction and the scheme in which the slot width of each annular groove 334 is consistent, and the slot depth of each annular groove 334 gradually decreases along the first direction, the light weakening effect of this scheme is better, and the light leakage compensation effect of the deformation area 24 is better.
[0054] Figure 4 is a schematic view of a light guide plate of a first embodiment of the present application, as Figure 4As shown, the light guide plate 330 includes a main body part 331 and a protruding part 332, the protruding part 332 is disposed on the side of the main body part 331 facing the display panel 20, the protruding part 332 corresponds to the deformation area 24 of the display panel 20, the side of the protruding part 332 away from the main body part 331 is arc-shaped, and the light filtering part 333 is disposed on the surface of the protruding part 332. Through the diffraction effect of the protruding part 332, the intensity of the light passing through the light filtering part 333 can be further weakened.
[0055] Furthermore, the annular grooves 334 can also be disposed on the surface of the protruding part 332, and along the first direction, a plurality of annular grooves 334 are sleeved, the groove depth of each annular groove 334 gradually decreases, and the width of the groove of each annular groove 334 gradually increases. It is ensured that the light passing through the protruding part 332 will form a trend of being darker in the middle and brighter on the sides.
[0056] Figure 5 is a sectional view of a first diffusion plate of the first embodiment of the present application, as Figure 5 As shown, the direction indicated by the arrow A in the figure represents the first direction, and the dashed line corresponds to the center of the deformation area 24. After passing through the light filtering part 333, the light will also pass through the first diffusion plate 410 before being irradiated onto the deformation area 24. In order to prevent the diffusion effect of the first diffusion plate 410 from changing the light distribution of the light passing through the light filtering part 333 and making the light chaotic, the present embodiment also improves the diffusion layer 432 in the first diffusion plate 410.
[0057] The first diffusion plate 410 is disposed on the side of the light guide plate 330 away from the back plate 310, and the first diffusion plate 410 completely covers the light guide plate 330. The first diffusion layer 432 includes a protection layer 431 and a diffusion layer 432 stacked and disposed, and the diffusion layer 432 is located on the side of the protection layer 431 away from the light guide plate 330. The diffusion layer 432 includes a plurality of diffusion particles 433, and the density of the diffusion particles 433 of the diffusion layer 432 corresponding to the deformation area 24 is greater than the density of the diffusion particles 433 of the diffusion layer 432 corresponding to other areas. The position of the diffusion layer 432 corresponding to the deformation area 24, along the first direction, the density of the diffusion particles 433 of the diffusion layer 432 gradually decreases.
[0058] The diffusion particles 433 will diffuse the light to other areas, and increasing the density of the diffusion particles 433 of the diffusion layer 432 corresponding to the deformation area 24 can further reduce the light passing through the light filtering part 333, thereby better solving the light leakage problem of the deformation area 24.
[0059] Figure 6is a schematic view of a second diffusion plate of the first embodiment of the present application, as Figure 6 As shown in the figure, the backlight module 300 further comprises a second diffusion plate 420, which is arranged on the side of the display panel 20 away from the back plate 310, and the second diffusion plate 420 only corresponds to the deformation area 24. The second diffusion layer 432 comprises a protective layer 431 and a diffusion layer 432 stacked together, and the diffusion layer 432 is located on the side of the protective layer 431 away from the light guide plate 330. The diffusion layer 432 comprises a plurality of diffusion particles 433, and the density of the diffusion particles 433 in the deformation area 24 is greater than that in other areas.
[0060] The array substrate 21 comprises a substrate 200 and an active switch layer 227, which is arranged on the side of the substrate 200 facing the color film substrate 23. The driving chip 11 is bonded on the side of the active switch layer 227 away from the substrate 200. The substrate 200 is provided with a groove 226 on the side facing the backlight module 300. The cross section of the groove 226 is inverted trapezoidal. The cross section of the second diffusion plate 420 is inverted trapezoidal and matches the shape of the groove 226. The second diffusion plate 420 is embedded in the groove 226, and the side surface of the second diffusion plate 420 is attached to the groove wall of the groove 226. The bottom surface of the second diffusion plate 420 is attached to the groove bottom of the groove 226. The top surface of the second diffusion plate 420 is flush with the groove opening of the groove 226. The area of the second diffusion plate 420 is greater than that of the deformation area 24. Thus, the light entering the deformation area 24 is weakened again, improving the compensation effect of light leakage. It can also ensure that the second diffusion plate 420 and the deformation area 24 are positioned in real time, and can also generate a reverse force on the bending of the substrate 200, which can correct the bending of the substrate 200.
[0061] Figure 7 is a schematic view of a backlight module of the first embodiment of the present application, as Figure 7 As shown in the figure, the light source 320 comprises a plurality of lamp beads 321. The back plate 310 comprises a main plate 311 and a side plate 312. The side plate 312 is arranged on the edge of the main plate 311. The light guide plate 330 is arranged on the main plate 311. A plurality of lamp beads 321 are arranged on the side plate 312 and face the light guide plate 330. The light filtering part 333 is located on the symmetry axis of two adjacent lamp beads 321 and at the intersection of the illumination areas of two adjacent lamp beads 321.
[0062] The intersection of the irradiation areas of two adjacent lamp beads 321 can also be understood as a shadow area. The light intensity at this position is weaker than that at other positions. Thus, the light irradiated to the deformation area 24 can be weakened at the beginning, which is beneficial to the light filtering part 333 to improve the light leakage problem of the deformation area 24.
[0063] Figure 8 is a schematic view of a reinforcing structure of a first embodiment of the present application, Figure 9 is an exploded schematic view of a reinforcing structure of a first embodiment of the present application, combined with Figures 8-9 as shown, Figure 8 The arrow C in the figure represents the third direction, the arrow D represents the fourth direction, and the dashed line represents the symmetry axis of the reinforcing main body part 510. The display device 10 further comprises a reinforcing structure 500 arranged on the side of the substrate 200 away from the driving chip 11, and the projection of the reinforcing structure 500 on the substrate 200 covers the driving chip 11. The expansion rate of the reinforcing structure 500 is less than that of the substrate 200, that is, under the same conditions, the degree of bending deformation of the reinforcing structure 500 is less than that of the substrate 200, thereby relieving the bending problem of the array substrate 21 caused by the driving chip 11 and weakening the severity of the light leakage of the deformation area 24.
[0064] The reinforcing structure 500 comprises a reinforcing main body part 510 and a plurality of first abutting structures 520, and the plurality of first abutting structures 520 are arranged on the side of the reinforcing main body part 510 close to the substrate 200. The substrate 200 comprises a substrate main body part 210 and a plurality of second abutting structures 220, and the second abutting structures 220 are arranged on the side of the substrate main body part 210 close to the reinforcing structure 500, and the second abutting structures 220 and the first abutting structures 520 are arranged one by one.
[0065] The first abutting structure 520 is in the shape of a triangular prism and comprises a first face 531, a second face 532 and a third face 533 connected in sequence. The third face 533 is on the same plane as the side of the reinforcing main body part 510 close to the substrate 200. The projection of the line connecting the first face 531 and the second face 532 on the reinforcing main body part 510 does not overlap the third face 533. The cross section of the first abutting structure 520 is an obtuse triangle, and the included angle between the first face 531 and the third face 533 is obtuse.
[0066] The second abutting structure 220 is shaped as a triangular prism, comprising a fourth face 221, a fifth face 222 and a sixth face 223 connected in sequence, the sixth face 223 is on the same plane as the side of the substrate main body part 210 close to the reinforcing structure 500, the projection of the line connecting the fourth face 221 and the fifth face 222 on the substrate main body part 210 does not overlap with the sixth face 223, the cross section of the second abutting structure 220 is an obtuse triangle, and the included angle between the fifth face 222 and the sixth face 223 is obtuse.
[0067] The plurality of first abutting structures 520 are divided into a plurality of first left abutting structures 541 and a plurality of first right abutting structures 542, the first left abutting structures 541 and the first right abutting structures 542 are respectively distributed on the two sides of the symmetry axis of the reinforcing main body part 510 and are symmetrically distributed.
[0068] The first face 531 of the first left abutting structure 541 is close to the symmetry axis, and the second face 532 of the first left abutting structure 541 is away from the symmetry axis; the first face 531 of the first right abutting structure 542 is close to the symmetry axis, and the second face 532 of the first right abutting structure 542 is away from the symmetry axis.
[0069] The plurality of second abutting structures 220 are divided into a plurality of second left abutting structures 224 and a plurality of second right abutting structures 225, the second left abutting structures 224 and the second right abutting structures 225 are respectively distributed on the two sides of the symmetry axis of the reinforcing main body part 510 and are symmetrically distributed.
[0070] The fourth face 221 of the second left abutting structure 224 is close to the symmetry axis, and the fifth face 222 of the second left abutting structure 224 is away from the symmetry axis; the fourth face 221 of the second right abutting structure 225 is close to the symmetry axis, and the fifth face 222 of the second right abutting structure 225 is away from the symmetry axis.
[0071] The first left abutting structure 541 is arranged between two adjacent second left abutting structures 224, and the first face 531 of the first left abutting structure 541 is attached to the fifth face 222 of the second left abutting structure 224, and the second face 532 of the first left abutting structure 541 is attached to the fourth face 221 of the other second left abutting structure 224. The first right abutting structure 542 is arranged between two adjacent second right abutting structures 225, and the first face 531 of the first right abutting structure 542 is attached to the fifth face 222 of the second right abutting structure 225, and the second face 532 of the first left abutting structure 541 is attached to the fourth face 221 of the other second left abutting structure 224.
[0072] Thus, the first left abutting structure 541 on the reinforcing body part 510 and the second left abutting structure 224 on the substrate body part 210 abut each other, and the first right abutting structure 542 on the reinforcing body part 510 and the second right abutting structure 225 on the substrate body part 210 abut each other. The problem of the bending of the substrate 200 caused by the binding of the driving chip 11 is alleviated.
[0073] Further, the third direction is the direction in which the first left abutting structure 541 is away from the symmetry axis, and the fourth direction is the direction in which the first right abutting structure 542 is away from the symmetry axis.
[0074] Along the third direction, the included angle between the first face 531 and the third face 533 of the first left abutting structure 541 gradually increases.
[0075] Along the fourth direction, the included angle between the first face 531 and the third face 533 of the first right abutting structure 542 gradually increases.
[0076] The second left abutting structure 224 matches the shape of the first left abutting structure, and the second right abutting structure 225 matches the shape of the first right abutting structure 542.
[0077] If the substrate 200 bends towards the side of the driving chip 11, then along the third direction and the fourth direction, the stress generated between the first left abutting structure 541 and the second left abutting structure 224 gradually increases, and the stress generated between the first right abutting structure 542 and the second right abutting structure 225 gradually increases.
[0078] Therefore, along the third direction, the included angle between the first face 531 and the third face 533 of the first left abutting structure 541 gradually increases, and along the fourth direction, the included angle between the first face 531 and the third face 533 of the first right abutting structure 542 gradually increases. Along the third direction, the included angle between the fifth face 222 and the sixth face 223 of the second left abutting structure 224 gradually increases, and along the fourth direction, the included angle between the fifth face 222 and the sixth face 223 of the second right abutting structure 225 gradually increases.
[0079] Thus, along the third direction and the fourth direction, the cooperation between the first left abutting structure 541 and the second left abutting structure 224 becomes tighter and tighter, and the cooperation between the first right abutting structure 542 and the second right abutting structure 225 becomes tighter and tighter, and the interaction force between them gradually increases, thereby offsetting the gradually increasing stress generated by the deformation of the substrate 200. Further, the severity of the light leakage in the deformation area 24 is reduced.
[0080] Embodiment 2:
[0081] Figure 10 is a schematic diagram of a first light filtering part of a second embodiment of the present application, as Figure 10 shown, different from the first embodiment, the light filtering part 333 in the first embodiment is composed of a plurality of annular grooves 334, and the light filtering part 333 in the second embodiment is composed of a plurality of ink dots 620. Specifically:
[0082] The light filtering part 333 includes a plurality of annular regions 610, and the direction in which the center of the annular region 610 extends outward is the second direction; a plurality of ink dots 620 are arranged in each annular region 610, and the area of the ink dots 620 in the annular region 610 gradually decreases along the second direction.
[0083] The larger the area of the ink dot 620, the weaker the intensity of the corresponding light, and the darker the corresponding area of the display panel 20. Thus, the light passing through the light filtering part 333 shows a trend of becoming brighter from the middle to the side, thereby compensating for the problem of the light leakage of the deformation area 24 becoming darker from the middle to the side.
[0084] Compared with the first embodiment, this embodiment does not need to set annular grooves 334 on the light guide plate 330, but only needs to print ink dots 620 at the positions of the light guide plate 330 corresponding to the deformation area 24, so the process is simpler, and when the position of the light filtering part 333 is wrong, the ink dots 620 can be erased and printed again for adjustment, and the rework is also simpler.
[0085] Figure 11 is a schematic diagram of a second light filtering part of the second embodiment of the present application, as Figure 11 shown, the light filtering part 333 includes a plurality of annular regions 610, and the direction in which the center of the annular region 610 extends outward is the second direction; a plurality of ink dots 620 are arranged in each annular region 610, and the area of each ink dot 620 is equal, and the density of the ink dots 620 in the annular region 610 gradually decreases along the second direction.
[0086] The greater the density of the ink dots 620, the weaker the intensity of the corresponding light, and the darker the corresponding area of the display panel 20. Thus, the light passing through the light filtering part 333 shows a trend of becoming brighter from the middle to the side, thereby compensating for the problem of the light leakage of the deformation area 24 becoming darker from the middle to the side.
[0087] Compared with the first light filtering part described above, the size of each ink dot 620 in this scheme is the same, and the light transmittance is changed only by adjusting the density, and the reflection of light by each ink dot 620 is the same, and the light transmittance control in each annular region 610 is more accurate.
[0088] It should be noted that the inventive concept of the present application can form a very large number of embodiments, but the length of the application file is limited and cannot list them one by one, so the above described embodiments or technical features can be combined to form new embodiments without conflict, and the combination of each embodiment or technical feature will enhance the original technical effect.
[0089] The technical solution of the present application can be widely used in various display panels, such as TN (Twisted Nematic) display panel, IPS (In-Plane Switching) display panel, VA (Vertical Alignment) display panel, and MVA (Multi-Domain Vertical Alignment) display panel, which can all be applied to the above-mentioned solution.
[0090] The above is a further detailed description of the present application in combination with specific optional embodiments, and the specific implementation of the present application cannot be limited to these descriptions. For ordinary skilled persons in the art to which the present application belongs, without departing from the concept of the present application, a number of simple deductions or substitutions can be made, which should be considered as falling within the scope of protection of the present application.
Claims
1. A display device, the display device comprising a display panel, a driver chip, and a backlight module, wherein the display panel and the backlight module are disposed opposite to each other, and the backlight module provides backlight for the display panel; the display panel includes a display area and a non-display area, the non-display area is disposed around the display area, and the driver chip is bonded to the display panel and located within the non-display area; The backlight module includes a back panel, a lamp source, and a light guide plate. Both the light guide plate and the lamp source are disposed on the back panel, with the lamp source facing the side of the light guide plate. The light guide plate is located between the display panel and the back panel. The backlight module is characterized in that... The display panel includes a deformable area and a non-deformable area. The light guide plate is provided with a filter part corresponding to the deformable area, and the filter part reduces the light irradiated to the deformable area. The display device further includes a reinforcement structure disposed on the side of the substrate away from the driving chip, and the projection of the reinforcement structure on the substrate covers the driving chip, wherein the expansion rate of the reinforcement structure is less than the expansion rate of the substrate; The reinforcement structure includes a reinforcement main body and a plurality of first abutment structures, wherein the plurality of first abutment structures are disposed on the side of the reinforcement main body close to the substrate; The substrate includes the substrate body portion and a plurality of second abutment structures. The second abutment structures are all disposed on the side of the substrate body portion near the reinforcing structure, and the second abutment structures and the first abutment structures are disposed in a one-to-one correspondence. The orthographic projection of the filter on the display panel covers the deformation area, and the orthographic projection area of the filter on the display panel is larger than the area of the deformation area. The filter includes a plurality of sleeved annular grooves, the center of which corresponds to the center of the deformation area.
2. The display device according to claim 1, characterized in that, The cross-section of the annular groove is V-shaped. The direction extending outward from the center of the circle is taken as the first direction. Along the first direction, there are multiple nested annular grooves, and the width of the groove opening of each annular groove gradually increases.
3. The display device according to claim 2, characterized in that, The depth of the annular groove is 50μm-60μm, and the width of the groove opening is 100μm-120μm.
4. The display device according to claim 1, characterized in that, The backlight module also includes optical adhesive, which fills the annular groove.
5. A display device, the display device comprising a display panel, a driver chip, and a backlight module, wherein the display panel and the backlight module are disposed opposite to each other, and the backlight module provides backlight to the display panel; the display panel includes a display area and a non-display area, the non-display area being disposed around the display area, and the driver chip being bonded to the display panel and located within the non-display area; The backlight module includes a back panel, a lamp source, and a light guide plate. Both the light guide plate and the lamp source are disposed on the back panel, with the lamp source facing the side of the light guide plate. The light guide plate is located between the display panel and the back panel. The backlight module is characterized in that... The display panel includes a deformable area and a non-deformable area. The light guide plate is provided with a filter part corresponding to the deformable area, and the filter part reduces the light irradiated to the deformable area. The display device further includes a reinforcement structure disposed on the side of the substrate away from the driving chip, and the projection of the reinforcement structure on the substrate covers the driving chip, wherein the expansion rate of the reinforcement structure is less than the expansion rate of the substrate; The reinforcement structure includes a reinforcement main body and a plurality of first abutment structures, wherein the plurality of first abutment structures are disposed on the side of the reinforcement main body close to the substrate; The substrate includes the substrate body portion and a plurality of second abutment structures. The second abutment structures are all disposed on the side of the substrate body portion near the reinforcing structure, and the second abutment structures and the first abutment structures are disposed in a one-to-one correspondence. The filter section includes multiple sleeved annular regions, with the direction extending outward from the center of the annular region as the second direction; Multiple ink dots are provided in each annular region, and the area of the ink dots in the annular region gradually decreases along the second direction.
6. A display device, the display device comprising a display panel, a driver chip, and a backlight module, wherein the display panel and the backlight module are disposed opposite to each other, and the backlight module provides backlight to the display panel; the display panel includes a display area and a non-display area, the non-display area being disposed around the display area, and the driver chip being bonded to the display panel and located within the non-display area; The backlight module includes a back panel, a lamp source, and a light guide plate. Both the light guide plate and the lamp source are disposed on the back panel, with the lamp source facing the side of the light guide plate. The light guide plate is located between the display panel and the back panel. The backlight module is characterized in that... The display panel includes a deformable area and a non-deformable area. The light guide plate is provided with a filter part corresponding to the deformable area, and the filter part reduces the light irradiated to the deformable area. The display device further includes a reinforcement structure disposed on the side of the substrate away from the driving chip, and the projection of the reinforcement structure on the substrate covers the driving chip, wherein the expansion rate of the reinforcement structure is less than the expansion rate of the substrate; The reinforcement structure includes a reinforcement main body and a plurality of first abutment structures, wherein the plurality of first abutment structures are disposed on the side of the reinforcement main body close to the substrate; The substrate includes the substrate body portion and a plurality of second abutment structures. The second abutment structures are all disposed on the side of the substrate body portion near the reinforcing structure, and the second abutment structures and the first abutment structures are disposed in a one-to-one correspondence. The filter section includes multiple sleeved annular regions, with the direction extending outward from the center of the annular region as the second direction; Each annular region is provided with multiple ink dots, each ink dot having an equal area, and the density of ink dots within the annular region gradually decreases along the second direction.
7. The display device according to any one of claims 2, 5, and 6, characterized in that, The backlight module further includes a first diffuser plate, which is disposed on the side of the light guide plate away from the back plate and completely covers the light guide plate. The first diffuser layer includes a protective layer and a diffuser layer stacked together, with the diffuser layer located on the side of the protective layer away from the light guide plate. The diffusion layer includes a plurality of diffusion particles, and the density of the diffusion particles in the deformation region of the diffusion layer is greater than the density of the diffusion particles in other regions of the diffusion layer.
8. The display device according to any one of claims 2, 5 and 6, characterized in that, The light guide plate includes a main body and a protrusion. The protrusion is disposed on the side of the main body facing the display panel. The protrusion corresponds to the deformation area of the display panel. The side of the protrusion facing away from the main body is arc-shaped. The light filter is disposed on the surface of the protrusion.
9. The display device according to any one of claims 1, 5, and 6, characterized in that, The light source includes multiple LED beads, the back plate includes a main board and a side plate, the side plate is disposed on the edge of the main board, the light guide plate is disposed on the main board, the multiple LED beads are spaced apart on the side plate and face the light guide plate, and the filter part is located on the axis of symmetry of two adjacent LED beads and at the intersection of the illumination areas of two adjacent LED beads.
Citation Information
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