Backlight module and display device with anti-bounce function and buffer component
By designing limiting slopes and angled spaces between the back frame and the buffer component, and fixing the snap-fit structure of the buffer component, the problem of the backlight module jumping off during impact or vibration is solved, improving reliability and saving costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- RADIANT OPTO ELECTRONICS SUZHOU
- Filing Date
- 2025-08-06
- Publication Date
- 2026-07-17
AI Technical Summary
In existing display devices, the backlight module's buffer component is prone to detaching during impact or vibration tests, which can prevent the light guide plate from being effectively fixed and reduce reliability.
The back frame and the buffer are engaged by using a locking structure. The limiting slope of the back frame and the bottom plate form an angled space to fix the buffer and the light guide plate and prevent them from jumping off.
This improves the reliability of the backlight module, saves tape costs and assembly time, and avoids scratches and bright spots on the corners of the light guide plate.
Smart Images
Figure CN224519086U_ABST
Abstract
Description
Technical Field
[0001] This disclosure relates to a backlight module and a display device comprising the aforementioned backlight module. Background Technology
[0002] To meet impact resistance requirements, current display devices typically use buffers around the backlight module to secure the light guide plate to the back frame, and adhesive tape is used to bond the back frame, light guide plate, and buffers together. However, in reliability tests, such as impact or vibration tests, the buffers can easily detach from the back frame due to external forces, making it impossible to effectively secure the light guide plate to the back frame, thus reducing reliability. Utility Model Content
[0003] The purpose of this disclosure is to provide a backlight module that can improve the overall reliability of the backlight module by utilizing the interlocking structure between the back frame and the buffer component.
[0004] This disclosure provides at least one other embodiment of a display device including the aforementioned backlight module, which can improve the overall reliability of the display device by utilizing the aforementioned locking structure.
[0005] This disclosure discloses at least one embodiment of a backlight module having a light emission direction and comprising a back frame, a light guide plate, and a buffer member. The back frame includes a base plate and a side wall connecting to the base plate. The side wall has at least one first limiting slope, forming a first angled space between the first limiting slope and the base plate. The light guide plate is disposed on the base plate. The buffer member is disposed between the side wall and the light guide plate, and the buffer member has at least one second limiting slope, forming a second angled space between the second limiting slope and the base plate. At least a portion of the buffer member is located in the first angled space and is contacted by the first limiting slope, while at least a portion of the light guide plate is located in the second angled space and is contacted by the second limiting slope.
[0006] In the backlight module and display device including the backlight module disclosed in at least one embodiment, the first limiting inclined surface of the back frame and the first angled space formed between the first limiting inclined surface and the bottom plate of the back frame can jointly provide a fixed limiting effect for the buffer, preventing the buffer from jumping out when the backlight module is subjected to impact or vibration. Furthermore, the second limiting inclined surface of the buffer and the second angled space formed between the second limiting inclined surface and the bottom plate of the back frame can also jointly provide a fixed limiting effect for the light guide plate, preventing the light guide plate from jumping out when the backlight module is subjected to impact or vibration. Therefore, the reliability of the backlight module can be improved. Attached Figure Description
[0007] Figure 1 This is a partial schematic diagram of a backlight module according to at least one embodiment disclosed herein.
[0008] Figure 2 yes Figure 1 A schematic cross-sectional view drawn along line a-a'.
[0009] Figure 3 This is a schematic diagram of the back frame, buffer member, and light guide plate of at least one embodiment disclosed herein.
[0010] Figure 4 This is a schematic diagram of a buffer component according to at least one embodiment of the present disclosure.
[0011] Figure 5 This is a partial schematic diagram of a backlight module according to at least another embodiment of the present disclosure.
[0012] Figure 6 This is a schematic diagram of at least another embodiment of the back frame, buffer, and light guide plate disclosed herein.
[0013] Figure 7 This is a partial schematic diagram of the back frame of at least another embodiment disclosed herein.
[0014] Figure 8 This is a partial schematic diagram of a backlight module according to at least another embodiment of the present disclosure.
[0015] Figure 9 This is a schematic diagram of at least another embodiment of the back frame, buffer, and light guide plate disclosed herein.
[0016] Figure 10 This is a schematic diagram of a buffer according to at least another embodiment of the present disclosure.
[0017] Figure 11 This is a schematic cross-sectional view of a display device according to at least one embodiment of the present disclosure. Detailed Implementation
[0018] In the following text, to clearly present the technical features of this disclosure, the dimensions (e.g., length, width, thickness, and depth) of the elements (e.g., layers, films, substrates, and regions) in the drawings will be enlarged proportionally, and the number of some elements may be reduced. Therefore, the description and explanation of the embodiments below are not limited to the number of elements in the drawings and the size and shape of the elements, but should cover the dimensions, shapes, and deviations from both caused by actual manufacturing processes and / or tolerances.
[0019] The spatial relative terms used in this disclosure, such as "below," "under," "above," and "above," are for the convenience of describing the relative relationship between one element or feature and another, as illustrated in the figure. The true meaning of these spatial relative terms includes other orientations. For example, when the illustration is rotated 180 degrees vertically, the relationship between one element and another may change from "below" or "under" to "above" or "above." Furthermore, the spatial relative descriptions used in this disclosure should be interpreted in the same way.
[0020] It should be understood that although this disclosure may use terms such as "first," "second," and "third" to describe various elements or features, these elements or features should not be limited by these terms. These terms are primarily used to distinguish one element from another, or one feature from another. Furthermore, the term "or" as used in this disclosure may, as appropriate, include any combination of one or more of the associated listed items.
[0021] Please see Figures 1 to 3 The backlight module 10 has a light emission direction ED and includes a back frame 100, a light guide plate 102, and a buffer member 104. The back frame 100 includes a base plate 100p and a side wall 100w connected to the base plate 100p. The side wall 100w has at least one first limiting slope S1, and a first angled space B1 is formed between the first limiting slope S1 and the base plate 100p. The light guide plate 102 is disposed on the base plate 100p. The buffer member 104 is disposed between the side wall 100w and the light guide plate 102. The buffer member 104 has at least one second limiting slope S2, and a second angled space B2 is formed between the second limiting slope S2 and the base plate 100p. At least a portion of the buffer member 104 is located in the first angled space B1 and is contacted by the first limiting slope S1, while at least a portion of the light guide plate 102 is located in the second angled space B2 and is contacted by the second limiting slope S2.
[0022] The back frame 100 serves as a structure to support the buffer 104 and the light guide plate 102. The back frame 100, the buffer 104, and the light guide plate 102 have an interlocking structure design. In particular, the first limiting inclined surface S1 on the side wall 100w of the back frame 100 and the first inclined surface S1 and the bottom plate 100p of the back frame 100 form a first angled space B1 to accommodate the buffer 104. The bottom plate 100p and the first limiting inclined surface S1 can jointly provide a fixed limiting effect for the buffer 104. When the backlight module 10 is impacted or vibrated, the buffer 104 can be prevented from jumping out. Similarly, the second oblique space B2 formed between the second limiting slope S2 of the buffer 104 and the bottom plate 100p of the back frame 100 can also be used to accommodate the light guide plate 102. The bottom plate 100p and the second limiting slope S2 can jointly provide a fixed limiting effect for the light guide plate 102. When the backlight module 10 is subjected to impact or vibration, the light guide plate 102 can also be prevented from jumping off. Compared to conventional backlight modules that use tape to fix the back frame, light guide plate, and buffer, this disclosure not only utilizes the first inclined space B1 and the second inclined space B2 formed by the first limiting inclined surface S1 and the second limiting inclined surface S2 with the base plate 100p respectively to accommodate the components that come into contact with the limiting inclined surface, but also achieves the effect of effectively fixing the buffer 104 and the light guide plate 102 with the back frame 100, improving the reliability of the backlight module 10. It also saves the tape cost and assembly time of conventional backlight modules, and is easier to disassemble and reassemble in heavy-duty situations without residual adhesive.
[0023] like Figure 1 As shown, the buffer 104 is provided corresponding to the corner C of the light guide plate 102, which can prevent the corner C of the light guide plate 102 from generating powder due to impact, which would cause scratches on the surface of the light guide plate 102 and form bright spots when lit, making the backlight module 10 unable to meet the specifications. In some embodiments, the light guide plate 102 has four corners C, so the backlight module 10 may include four buffers 104 respectively provided corresponding to the four corners C. However, this disclosure is not limited to this. The number of buffers 104 can correspond to the number of corners C of the light guide plate 102, which can ensure that the corners of the light guide plate 102 do not warp upwards, so as to maintain the flatness of the light guide plate 102.
[0024] like Figure 2As shown, the thickness TN of the sidewall 100w of the back frame 100 gradually increases from the bottom plate 100p of the back frame 100 along the light emission direction ED. That is, the sidewall 100w has an inner surface IS facing the light guide plate 102 and an outer surface OS facing away from the light guide plate 102. The distance between the inner surface IS and the outer surface OS gradually increases from the bottom plate 100p along the light emission direction ED, and an acute angle θ is formed between the inner surface IS and the bottom plate 100p. By means of the aforementioned thickness variation design of the sidewall 100w, a space for accommodating the buffer member 104 can also be formed between the inner surface IS of the sidewall 100w and the bottom plate 100p of the back frame 100, which can also provide a fixed limiting effect for the buffer member 104. In some embodiments, the inner surface IS may include a first limiting slope S1, but this disclosure is not limited thereto.
[0025] Please see Figure 3 and Figure 4 The sidewall 100w includes a protrusion Pa, which is located on the side of the sidewall 100w facing the buffer member 104 and has a first limiting slope S1. The buffer member 104 includes a first groove R1, which is located on the side of the buffer member 104 facing the sidewall 100w and corresponds to the protrusion Pa. The width wa of the protrusion Pa of the sidewall 100w and the width wb of the first groove R1 of the buffer member 104 both gradually increase from the base plate 100p along the light emission direction ED. In addition, the thickness ta of the protrusion Pa of the sidewall 100w and the depth da of the first groove R1 of the buffer member 104 both gradually increase from the base plate 100p along the light emission direction ED.
[0026] With the above design, when the backlight module 10 is impacted or vibrated, since the width and thickness of the upper half of the protrusion Pa of the side wall 100w are greater than the width and depth of the lower half of the first groove R1 of the buffer member 104, the buffer member 104 can be effectively prevented from jumping upward.
[0027] like Figure 3 As shown, the protrusion Pa, in addition to the first limiting inclined surface S1, also has other first limiting inclined surfaces S5 and S9, and the first limiting inclined surfaces S5 and S9 form other first oblique angle spaces (unlabeled) with the base plate 100p. Specifically, the first limiting inclined surface S1 forms an acute angle θ1 towards the base plate 100p, and the first limiting inclined surface S1 and the base plate 100p form a first oblique angle space B1. The first limiting inclined surfaces S5 and S9 form other acute angles (unlabeled) towards the base plate 100p, and the first limiting inclined surfaces S5 and S9 and the base plate 100p each form a first oblique angle space. Thus, the multiple limiting inclined surfaces of the protrusion Pa with different tilt directions can improve the multi-faceted fixing effect of the protrusion Pa on the buffer 104.
[0028] like Figure 4As shown, the first groove R1 has first corresponding inclined surfaces S3, S7, and S11 that correspond to the first limiting inclined surfaces S1, S5, and S9 of the protrusion Pa, respectively. With the aforementioned design, the first limiting inclined surfaces S1, S5, and S9 of the protrusion Pa and the first limiting inclined surfaces S1, S5, and S9 and the bottom plate 100p of the back frame 100 respectively form first angled spaces that can fix the buffer 104 to the first corresponding inclined surfaces S3, S7, and S11 of the first groove R1 with different inclined surfaces. When the backlight module 10 is subjected to impact or vibration, the buffer 104 can be prevented from jumping off.
[0029] Please continue reading. Figure 3 The buffer 104 includes a second groove R2, which is located on the side of the buffer 104 facing the light guide plate 102 and has a second limiting slope S2. The light guide plate 102 includes a protrusion Pb, which is located on the side of the light guide plate 102 facing the buffer 104 and corresponds to the second groove R2 of the buffer 104. The width wc of the second groove R2 of the buffer 104 and the width wd of the protrusion Pb of the light guide plate 102 both gradually decrease from the bottom plate 100p along the light emission direction ED. In addition, the depth db of the second groove R2 of the buffer 104 and the thickness tb of the protrusion Pb of the light guide plate 102 both gradually decrease from the bottom plate 100p along the light emission direction ED.
[0030] With the above design, when the backlight module 10 is subjected to impact or vibration, since the width and depth of the upper half of the second groove R2 of the buffer 104 are smaller than the width and thickness of the lower half of the protrusion Pb of the light guide plate 102, the second groove R2 of the buffer 104 can effectively prevent the light guide plate 102 from jumping upward.
[0031] like Figure 3 As shown, the second groove R2, in addition to the second limiting inclined surface S2, also has other second limiting inclined surfaces S6 and S10, and the second limiting inclined surfaces S6 and S10 respectively form other second oblique angle spaces (unlabeled) with the base plate 100p. Specifically, the second limiting inclined surface S2 forms an acute angle θ2 towards the base plate 100p, and the second limiting inclined surface S2 and the base plate 100p form a second oblique angle space B2. The second limiting inclined surfaces S6 and S10 respectively form other acute angles (unlabeled) towards the base plate 100p, and the second limiting inclined surfaces S6 and S10 respectively form second oblique angle spaces with the base plate 100p. Thus, the multiple limiting inclined surfaces with different tilt directions of the protrusion Pb can improve the multi-faceted fixing effect of the protrusion Pb to the light guide plate 102.
[0032] Furthermore, the second limiting slope S6 of the second groove R2 near the corner C of the light guide plate 102 has the opposite inclination direction to the first corresponding slope S7 of the first groove R1 near the corner C of the light guide plate 102, while the second limiting slope S2 of the second groove R2 away from the corner C of the light guide plate 102 has the opposite inclination direction to the first corresponding slope S3 of the first groove R1 away from the corner C of the light guide plate 102.
[0033] like Figure 3 As shown, the bump Pb has second corresponding inclined surfaces S4, S8, and S12 that correspond to the second limiting inclined surfaces S2, S6, and S10 of the second groove R2, respectively. With the aforementioned design, the second limiting inclined surfaces S2, S6, and S10 of the second groove R2 and the second limiting inclined surfaces S2, S6, and S10 and the bottom plate 100p of the back frame 100 respectively form second oblique angle spaces that can fix the light guide plate 102 to the second corresponding inclined surfaces S4, S8, and S12 of the bump Pb with different inclined surfaces in different directions. When the backlight module 10 is subjected to impact or vibration, the light guide plate 102 can be prevented from jumping off.
[0034] Please continue reading. Figure 3 and Figure 4 The first limiting inclined surfaces S1 and S5 are located on both sides of the first limiting inclined surface S9, the first corresponding inclined surfaces S3 and S7 are located on both sides of the first corresponding inclined surface S11, the second limiting inclined surfaces S2 and S6 are located on both sides of the second limiting inclined surface S10, and the second corresponding inclined surfaces S4 and S8 are located on both sides of the second corresponding inclined surface S12. Furthermore, the absolute values of the slopes of the first limiting inclined surfaces S1 and S5 and the first corresponding inclined surfaces S3 and S7 are the same, but their tilting directions are opposite. Similarly, the absolute values of the slopes of the second limiting inclined surfaces S2 and S6 and the second corresponding inclined surfaces S4 and S8 are the same, but their tilting directions are opposite. The absolute values of the slopes of the second limiting inclined surface S6 and the first corresponding inclined surface S7 are the same, and the absolute values of the slopes of the second limiting inclined surface S2 and the first corresponding inclined surface S3 are the same. This design, with the aforementioned identical absolute values of slopes, simplifies the manufacturing process of the back frame 100, the light guide plate 102, and the buffer member 104, but this disclosure is not limited to this.
[0035] In other embodiments, the absolute values of the slopes of the first limiting inclined surfaces S1 and S5 and the first corresponding inclined surfaces S3 and S7 may be different; the absolute values of the slopes of the second limiting inclined surfaces S2 and S6 and the second corresponding inclined surfaces S4 and S8 may be different; the absolute values of the slopes of the second limiting inclined surface S6 and the first corresponding inclined surface S7 may be different; and the absolute values of the slopes of the second limiting inclined surface S2 and the first corresponding inclined surface S3 may be different. By employing the aforementioned design with different absolute values of slope, the effect of preventing assembly errors can be achieved.
[0036] In some embodiments, the material of the buffer 104 may include elastic materials such as rubber and silicone to achieve appropriate cushioning and rebound effects, but this disclosure is not limited thereto.
[0037] Please see Figures 5 to 7 , Figures 5 to 7 Implementation examples and Figures 1 to 4 The structures, relative positions, and materials of most components in the two embodiments are the same, so the same technical features will not be described again here. The main difference between the two embodiments is... Figures 5 to 7 The backlight module 10' has one or more first oblique angle spaces B1, B1' between the side wall 100w of the back frame 100' and the base plate 100p, and the buffer 104 has one or more second oblique angle spaces B2, B2' between the base plate 100p and the buffer.
[0038] In detail, such as Figure 6 As shown, the side wall 100w of the back frame 100' includes a first wall W1 and a second wall W2 connected to the first wall W1. The buffer 104' includes a first outer wall OW1 and a second outer wall OW2 connected to the first outer wall OW1. The first outer wall OW1 and the second outer wall OW2 face the first wall W1 and the second wall W2 respectively. The first wall W1 and the second wall W2 form a first oblique space B1 and B1' between the bottom plate 100p of the back frame 100' respectively. The first outer wall OW1 and the second outer wall OW2 are respectively confined in the first oblique space B1 and B1'. In other words, this disclosure can increase the number of first oblique angle spaces B1 that provide fixed positioning for the buffer 104 by the back frame 100' according to the shape or length of the buffer 104. In this embodiment, since the buffer 104 is set at the corner C of the light guide plate 102, first oblique angle spaces B1 that provide fixed positioning are provided on the first outer wall OW1 and the second outer wall OW2, respectively. Therefore, not only can the stability of the fixed positioning be increased, but also, through the aforementioned design, first oblique angle spaces B1 and B1' can be formed between the first wall W1 and the second wall W2 of the side wall 100w of the back frame 100' and the bottom plate 100p of the back frame 100' in two directions (e.g., the X direction and the Y direction). Therefore, the buffer 104' can be fixed in two directions at the same time. When the backlight module 10' is impacted or vibrated, the buffer 104' can be further prevented from jumping off, thereby effectively improving the reliability of the backlight module 10'.
[0039] Furthermore, the buffer 104' includes a first inner wall IW1 and a second inner wall IW2 connected to the first inner wall IW1, and the light guide plate 102' has a first surface F1 and a second surface F2 connected to the first surface F1. The first surface F1 and the second surface F2 face the first inner wall IW1 and the second inner wall IW2 respectively. The first inner wall IW1 and the second inner wall IW2 form second oblique angle spaces B2 and B2' respectively with the bottom plate 100p of the back frame 100'. The first surface F1 and the second surface F2 are respectively confined in the second oblique angle spaces B2 and B2'. With the aforementioned design, the first inner wall IW1 and the second inner wall IW2 of the buffer 104 can form a second oblique space B2, B2' between the bottom plate 100p of the back frame 100' in two directions (e.g., the X direction and the Y direction). Therefore, the light guide plate 102' can be fixed in two directions at the same time. When the backlight module 10' is subjected to impact or vibration, the light guide plate 102' can be further prevented from jumping off, thereby effectively improving the reliability of the backlight module 10'.
[0040] For example, please continue reading Figure 6 In addition to the first wall W1 containing protrusion Pa, the side wall 100w of the back frame 100' also contains protrusion Pa' in the second wall W2. In addition to the first outer wall OW1 containing the first groove R1, the second outer wall OW2 of the buffer 104' also contains the first groove R1' corresponding to protrusion Pa'. Furthermore, in addition to the first inner wall IW1 containing the second groove R2, the second inner wall IW2 of the buffer 104' also contains the second groove R2'. In addition to the first surface F1 containing protrusion Pb, the second surface F2 of the light guide plate 102' also contains protrusion Pb' corresponding to the second groove R2'. The protrusion Pa', the first groove R1', the second groove R2', and the protrusion Pb' respectively correspond to... Figures 1 to 4 The structures and relative positions of the bump Pa, the first groove R1, the second groove R2, and the bump Pb in the embodiments are generally the same, so the same technical features will not be described again here.
[0041] like Figure 5 and Figure 7 As shown, the base plate 100p of the back frame 100' has a slot O, and the buffer 104' is disposed on the slot O. (See also...) Figure 2 The slot O is shown in the cross-sectional schematic diagram. Through the aforementioned design, in addition to serving as a positioning structure for the buffer 104 on the base plate 100p, the slot O also provides a margin for the expansion of the buffer 104' when it expands (e.g., due to thermal expansion). This is because the first oblique angle space B1 restricts the space of the buffer 104', preventing the expanded buffer 104' from extending in other directions and causing damage to the light guide plate 102' or the optical film (not shown) on the light guide plate 102'. In some embodiments, the shape of the buffer 104' and the shape of the slot O can be approximately L-shaped. Furthermore, as... Figure 5 and Figure 6 As shown, the buffer 104' has a notch N corresponding to the corner C of the light guide plate 102'. When the buffer 104' expands (e.g., due to thermal expansion), the notch N can prevent the corner C of the light guide plate 102' from being damaged.
[0042] Please see Figures 8 to 10 , Figures 8 to 10 Implementation examples and Figures 5 to 7 The structures, relative positions, and materials of most components in the two embodiments are the same, so the same technical features will not be described again here. The main difference between the two embodiments is... Figures 8 to 10 The backlight module 10A has a back frame 100A sidewall 100w containing a groove Ra with a first limiting slope S1, and a buffer 104A containing a first protrusion P1 corresponding to the groove Ra and a second protrusion P2 with a second limiting slope S2.
[0043] In detail, the width we of the groove Ra of the sidewall 100w and the width wf of the first protrusion P1 of the buffer member 104A both gradually decrease from the base plate 100p along the light emission direction ED. In addition, the depth dc of the groove Ra of the sidewall 100w and the thickness tc of the first protrusion P1 of the buffer member 104A both gradually decrease from the base plate 100p along the light emission direction ED.
[0044] With the above design, when the backlight module 10 is impacted or vibrated, since the width and depth of the upper half of the groove Ra of the side wall 100w are smaller than the width and thickness of the lower half of the first protrusion P1 of the buffer 104A, the buffer 104A can be effectively prevented from jumping upward.
[0045] Please continue reading. Figure 9 and Figure 10 The width wg of the second protrusion P2 of the buffer 104A and the width wh of the groove Rb of the light guide plate 102A both gradually increase from the base plate 100p along the light emission direction ED. In addition, the thickness td of the second protrusion P2 of the buffer 104A and the depth dd of the groove Rb of the light guide plate 102A both gradually increase from the base plate 100p along the light emission direction ED.
[0046] With the above design, when the backlight module 10A is subjected to impact or vibration, since the width and thickness of the upper half of the second protrusion P2 of the buffer 104A are greater than the width and depth of the lower half of the groove Rb of the light guide plate 102A, the light guide plate 102A can be effectively prevented from jumping upward.
[0047] Figures 8 to 10In the embodiment, the first limiting inclined surfaces S1, S5, and S9 of the groove Ra, the second limiting inclined surfaces S2, S6, and S10 of the second protrusion P2, the first corresponding inclined surfaces S3, S7, and S11 of the first protrusion P1, and the second corresponding inclined surfaces S4, S8, and S12 of the groove Rb are respectively connected to... Figures 1 to 4 The structures and relative positions of the first limiting inclined surfaces S1, S5, S9, the second limiting inclined surfaces S2, S6, S10, the first corresponding inclined surfaces S3, S7, S11, and the second corresponding inclined surfaces S4, S8, S12 in the embodiments are generally the same, so the same technical features will not be described again here.
[0048] Please continue reading. Figure 9 and Figure 10 In addition to the first wall W1 containing the groove Ra, the side wall 100w of the back frame 100A also contains the groove Ra' of the second wall W2. In addition to the first outer wall OW1 containing the first protrusion P1, the second outer wall OW2 of the buffer 104A also contains the first protrusion P1' corresponding to the groove Ra'. In addition to the first inner wall IW1 containing the second protrusion P2, the second inner wall IW2 of the buffer 104A also contains the second protrusion P2'. In addition to the first surface F1 containing the groove Rb, the second surface F2 of the light guide plate 102A also contains the groove Rb' corresponding to the second protrusion P2'. The groove Ra', the first protrusion P1', the second protrusion P2' and the groove Rb' are roughly the same in structure and relative position as the groove Ra, the first protrusion P1, the second protrusion P2 and the groove Rb, respectively. Therefore, the same technical features will not be described again here.
[0049] Please see Figure 11 The display device 1 includes a backlight module 10 and a display panel 20 disposed on the backlight module 10. The display panel 20 may be a liquid crystal display panel. In other embodiments, the backlight module included in the display device 1 may be... Figure 5 10' backlight module Figure 8 The backlight module 10A or various combinations of the backlight modules of the above embodiments.
[0050] In summary, in the backlight module and display device including the aforementioned backlight module according to at least one embodiment disclosed above, the first limiting slope of the back frame and the first angled space formed between the first limiting slope and the bottom plate of the back frame can jointly provide a fixing and limiting effect on the buffer member, preventing the buffer member from jumping off when the backlight module is subjected to impact or vibration. Furthermore, the second limiting slope of the buffer member and the second angled space formed between the second limiting slope and the bottom plate of the back frame can also jointly provide a fixing and limiting effect on the light guide plate, preventing the light guide plate from jumping off when the backlight module is subjected to impact or vibration. Therefore, the reliability of the backlight module can be improved.
[0051] Although this disclosure has been presented above with reference to embodiments, it is not intended to limit this disclosure. Those skilled in the art can make some modifications and refinements without departing from the spirit and scope of this disclosure. Therefore, the scope of protection of this disclosure shall be determined by the appended claims.
[0052] [Symbol Explanation]
[0053] 1: Display device
[0054] 10, 10', 10A: Backlight module
[0055] 20: Display panel
[0056] 100, 100', 100A: Back frame
[0057] 100p: Base Plate
[0058] 100w: Side wall
[0059] 102, 102', 102A: Light guide plate
[0060] 104, 104', 104A: Buffer components
[0061] B1, B1': First oblique space
[0062] B2, B2': Second oblique space
[0063] C: Corner
[0064] da, db, dc, dd: depth
[0065] ED: light emission direction
[0066] F1: First Page
[0067] F2: Second side
[0068] IS: Inner Surface
[0069] IW1: First Inner Wall
[0070] IW2: Second Inner Wall
[0071] N: Gap
[0072] O: Grooving
[0073] OS: Outer Surface
[0074] OW1: First Outer Wall
[0075] OW2: Second Outer Wall
[0076] Pa, Pa', Pb, Pb': bumps
[0077] R1, R1': First groove
[0078] R2, R2': Second groove
[0079] P1, P1': First bump
[0080] P2, P2': Second convex blocks
[0081] Ra, Ra', Rb, Rb': Groove
[0082] S1, S5, S9: First limiting inclined plane
[0083] S2, S6, S10: Second limiting inclined plane
[0084] S3, S7, S11: First corresponding inclined plane
[0085] S4, S8, S12: Second corresponding inclined plane
[0086] ta, tb, tc, td, TN: Thickness
[0087] W1: First Wall
[0088] W2: Second Wall
[0089] wa, wb, wc, wd, we, wf, wg, wh: width
[0090] θ, θ1, θ2: acute angles.
Claims
1. A backlight module with a buffer member having a function of preventing jump-out, characterized in that, It has a light emission direction and includes: The back frame includes a base plate and a side wall connected to the base plate, wherein the side wall has at least one first limiting inclined surface, and the first limiting inclined surface and the base plate form a first oblique angle space; A light guide plate is disposed on the base plate; and A buffer element is disposed between the side wall and the light guide plate. The buffer element has at least one second limiting inclined surface, and a second inclined space is formed between the second limiting inclined surface and the base plate. At least a portion of the buffer is located in the first angled space and is contacted by the first limiting slope, while at least a portion of the light guide plate is located in the second angled space and is contacted by the second limiting slope.
2. The back light module with the buffer member preventing the jump-out function as claimed in claim 1, wherein The sidewall includes a protrusion located on the side of the sidewall facing the buffer and having the first limiting slope. The buffer includes a first groove located on the side of the buffer facing the sidewall and corresponding to the protrusion of the sidewall. The width of the protrusion of the sidewall and the width of the first groove of the buffer both gradually increase from the base plate along the light emission direction.
3. The back light module with the buffer member preventing the jump-out function as claimed in claim 2, wherein the buffer member is made of a material having a high elasticity coefficient and a high damping coefficient. The thickness of the protrusion on the side wall and the depth of the first groove of the buffer both gradually increase from the base plate along the light-emitting direction.
4. The backlight module with anti-jump function of the buffer component as described in claim 2, characterized in that, The buffer includes a second groove located on the side of the buffer facing the light guide plate and having a second limiting slope. The light guide plate includes a protrusion located on the side of the light guide plate facing the buffer and corresponding to the second groove of the buffer. The width of the second groove of the buffer and the width of the protrusion of the light guide plate both gradually decrease from the base plate along the light emission direction.
5. The back light module with the buffer member preventing the jump-out function as claimed in claim 4, wherein the buffer member is made of a material having a high elasticity and a high friction coefficient. The depth of the second groove of the buffer and the thickness of the protrusion of the light guide plate both gradually decrease from the base plate along the light emission direction.
6. The backlight module with anti-jump function of the buffer component as described in claim 2, characterized in that, The buffer includes a protrusion located on the side of the buffer facing the light guide plate and having the second limiting slope. The light guide plate includes a groove located on the side of the light guide plate facing the buffer and corresponding to the protrusion of the buffer. The width of the protrusion of the buffer and the width of the groove of the light guide plate both gradually increase from the base plate along the light emission direction.
7. The back light module with the cushion member preventing the jump-out function as claimed in claim 1, wherein The sidewall includes a groove located on the side of the sidewall facing the buffer and having the first limiting slope. The buffer includes a first protrusion located on the side of the buffer facing the sidewall and corresponding to the groove of the sidewall. The width of the groove of the sidewall and the width of the first protrusion of the buffer both gradually decrease from the base plate along the light emission direction.
8. The back light module with the buffer member preventing the jump-out function as claimed in claim 7, wherein The depth of the groove in the side wall and the thickness of the first protrusion of the buffer both gradually decrease from the base plate along the light-emitting direction.
9. The back light module with the buffer member preventing the jump-out function as claimed in claim 7, wherein the buffer member is made of a material having a hardness of 50 to 90 degrees. The buffer includes a second protrusion located on the side of the buffer facing the light guide plate and having the second limiting slope. The light guide plate includes a groove located on the side of the light guide plate facing the buffer and corresponding to the second protrusion of the buffer. The width of the second protrusion of the buffer and the width of the groove of the light guide plate both gradually increase from the base plate along the light emission direction.
10. The backlight module with anti-jump function of the buffer component as described in claim 7, characterized in that, The buffer includes a groove located on the side of the buffer facing the light guide plate and having the second limiting slope. The light guide plate includes a protrusion located on the side of the light guide plate facing the buffer and corresponding to the groove of the buffer. The width of the groove of the buffer and the width of the protrusion of the light guide plate both gradually decrease from the base plate along the light emission direction.
11. The back light module with the cushion member preventing the jump-out function as claimed in claim 1, wherein The first limiting inclined surface forms an acute angle with the base plate.
12. The backlight module of claim 1, wherein, The second limiting inclined surface forms an acute angle with the base plate.
13. The back light module with the cushion member preventing the jump-out function as claimed in claim 1, wherein The thickness of the sidewall gradually increases from the base plate along the light-emitting direction.
14. The back light module with the cushion member preventing the jump-out function as claimed in claim 1, wherein The base plate has a slot, and the buffer is disposed on the slot.
15. The back light module with the cushion member preventing the jump-out function according to claim 1, wherein The buffer is positioned at the corner of the light guide plate.
16. The back light module with a cushion having a jump prevention function according to claim 1, wherein The side wall includes a first wall and a second wall connected to the first wall. The buffer includes a first outer wall and a second outer wall connected to the first outer wall. The first outer wall and the second outer wall face the first wall and the second wall respectively. The first wall and the second wall and the base plate respectively form the first oblique space. The first outer wall and the second outer wall are respectively confined in the first oblique space.
17. The back light module with the cushion member preventing the jump-out function as claimed in claim 16, wherein The buffer includes a first inner wall and a second inner wall connected to the first inner wall. The light guide plate has a first surface and a second surface connected to the first surface. The first surface and the second surface face the first inner wall and the second inner wall respectively. The first inner wall and the second inner wall and the base plate respectively form the second oblique space. The first surface and the second surface are respectively confined in the second oblique space.
18. A display device comprising: include: A backlight module with a buffer component as described in any one of claims 1 to 17, having an anti-bounce function; as well as The display panel is located on the backlight module of the buffer, which has a function to prevent bounce.