Display device
By using a light guide in the display device to direct the backlight light as an indicator light, the problems of complex and costly indicator light design in the prior art are solved, achieving the effect of simplified design and reduced cost.
Patent Information
- Application Number
- CN202520009666.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-02
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-01-02
AI Technical Summary
In existing display devices, indicator lights are complex to design, difficult to manufacture, and costly. Alternatively, they may fail to achieve the function of indicator lights while increasing design difficulty and manufacturing costs.
A light guide is used to guide the light from the backlight through an opening to serve as an indicator light, eliminating the need for additional light-emitting devices and circuit boards. The backlight in the backlight module is used as the light source for the indicator light, and the indicator light function is achieved through the structural design of the light guide.
It simplifies the design of display devices, reduces development difficulty and manufacturing costs, and improves the accuracy and indication effect of whether the display device is working.
Smart Images
Figure CN223857547U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present disclosure relates to the technical field of display, in particular to a display device. BACKGROUND
[0002] Liquid crystal (LCD) display panels have been widely used in various large, medium and small size terminal display devices due to their light weight, small size and thin thickness. For example, liquid crystal display panels have been widely used in many display devices, such as computer screens, televisions and mobile phone screens. At present, display devices generally have indicator lights for indicating whether the display device is working. SUMMARY
[0003] The present disclosure aims to at least solve one of the technical problems existing in the prior art, and proposes a display device.
[0004] To achieve the above-mentioned purpose, the present disclosure provides a display device, comprising:
[0005] A housing having a first accommodating space, the housing being provided with a first opening;
[0006] A backlight module and a display panel located on the light emitting side of the backlight module, the backlight module and the display panel being located in the first accommodating space, and the backlight module comprising a back plate and a backlight source located on the side of the back plate facing the display panel, the back plate being provided with a second opening;
[0007] A light guide member located in the first accommodating space and passing through the second opening, the light guide member having an incident light surface and an emitting light surface, the incident light surface facing the backlight source, and the emitting light surface facing the first opening, the light guide member being used for conducting light rays from the incident light surface to the emitting light surface and emitting from the emitting light surface.
[0008] In some embodiments, the housing comprises a shielding part and a rear shell;
[0009] The rear shell comprises a first bottom plate and a plurality of first side plates connected to the edges of the first bottom plate, the plurality of first side plates surrounding the backlight module and the display panel, and each first side plate being located on one side of the backlight module;
[0010] The shielding part is located on the side of the display surface of the display panel away from the backlight module and is connected to at least one first side plate;
[0011] The display panel comprises a display area, and the orthogonal projection of the shielding part on the display panel is located outside the display area;
[0012] The first opening is formed on the shielding part.
[0013] In some embodiments, the light guide comprises an incident light part, a light guide part and an exit light part connected in sequence, the incident light surface is located at one end of the incident light part away from the light guide part, and the exit light surface is located at one end of the exit light part away from the light guide part.
[0014] The back plate comprises a second bottom plate and a second side plate connected to an edge of the second bottom plate, the second bottom plate and the second side plate define a second containing space, and the backlight source is located in the second containing space.
[0015] The second opening is formed on the second bottom plate.
[0016] The incident light part passes through the second opening, and the exit light part is located on a side of the second side plate away from the second containing space.
[0017] In some embodiments, a first limiting part is arranged on a side of the back shell facing the back plate, and the light guide part is clamped between the first limiting part and the bottom plate.
[0018] In some embodiments, a bearing part is arranged on a side of the shielding part close to the back shell, and the bearing part is located on a side of the second side plate away from the backlight source.
[0019] A second limiting part is arranged between the bearing part and the exit light part, and the thickness of the second limiting part gradually decreases in a direction close to the back shell.
[0020] In some embodiments, a third limiting part is arranged on a side of the bearing part close to the exit light part, the third limiting part is located on opposite sides of the exit light part in a second direction, and is used for limiting the exit light part in the second direction, and the second direction intersects the first direction and the thickness direction of the display panel.
[0021] In some embodiments, an adhesive is arranged between the light guide part and the back plate.
[0022] In some embodiments, the light guide part comprises a connecting surface, a first reflecting surface and a second reflecting surface, the first reflecting surface and the second reflecting surface are arranged opposite to the connecting surface, the incident light part and the exit light part are connected to the connecting surface, the first reflecting surface is used for reflecting light rays from the incident light part to the second reflecting surface, and the second reflecting surface is used for reflecting light rays from the first reflecting surface to the exit light part.
[0023] In some embodiments, the area of the incident light surface is greater than the area of the exit light surface.
[0024] In the direction in which the light-in portion points to the light-out portion, the cross-sectional area of the light guide portion perpendicular to the direction in which the light-in portion points to the light-out portion gradually decreases.
[0025] In some embodiments, the light-out portion comprises a first sub light-out portion and a second sub light-out portion, the light-out surface is located at one end of the second sub light-out portion away from the first sub light-out portion, the first sub light-out portion and the second sub light-out portion both extend along the thickness direction of the display panel, and the cross-sectional area of the first sub light-out portion perpendicular to the thickness direction of the display panel is greater than the cross-sectional area of the second sub light-out portion perpendicular to the thickness direction of the display panel, at least part of the second sub light-out portion is located in the first opening. BRIEF DESCRIPTION OF DRAWINGS
[0026] The accompanying drawings are included to provide a further understanding of the present disclosure and constitute a part of the specification, and are used together with the specific embodiments described below to explain the present disclosure, but do not constitute a limitation on the present disclosure. In the drawings:
[0027] Figure 1 is a schematic diagram of the planar structure of the light-out side of the display device in some embodiments of the present disclosure;
[0028] Figure 2 is a schematic diagram of the planar structure of the backlight side of the display device in some embodiments of the present disclosure;
[0029] Figure 3 is a schematic diagram of the cross-sectional structure of the display device in some embodiments of the present disclosure;
[0030] Figure 4 is a schematic diagram of the three-dimensional structure of the light guide member at a certain angle in some embodiments of the present disclosure;
[0031] Figure 5 is a schematic diagram of the three-dimensional structure of the light guide member at another angle in some embodiments of the present disclosure;
[0032] Figure 6 is a schematic diagram of the side surface structure of the light guide member in some embodiments of the present disclosure;
[0033] Figure 7 is a schematic diagram of the planar structure of the back plate in some embodiments of the present disclosure;
[0034] Figure 8 is a schematic diagram of the structure of the display device in some other embodiments of the present disclosure;
[0035] Figure 9 is a schematic diagram of the mounting process of the light guide member in some embodiments of the present disclosure;
[0036] Figure 10 is a schematic diagram of the light conduction in the light guide member in some embodiments of the present disclosure;
[0037] Figure 11 is a structural schematic diagram of a display device in some other embodiments of the present disclosure. DETAILED DESCRIPTION
[0038] The specific embodiments of the present disclosure will be described below in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely intended to illustrate and explain the present disclosure, and are not intended to limit the present disclosure.
[0039] To make the objects, technical solutions and advantages of the embodiments of the present disclosure clearer, the technical solutions of the embodiments of the present disclosure will be described clearly and completely below with reference to the accompanying drawings of the embodiments of the present disclosure. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, rather than all the embodiments of the present disclosure. Based on the described embodiments of the present disclosure, all other embodiments obtained by a person of ordinary skill in the art without any inventive effort belong to the scope of protection of the present disclosure.
[0040] Unless otherwise defined, technical terms or scientific terms used in the embodiments of the present disclosure should be understood as having the common meaning in the field of the present disclosure to which they belong. The terms “first”, “second”, and similar terms used in the present disclosure do not denote any order, quantity, or importance, but are used to distinguish different components. Similarly, the terms “include”, “contain”, and similar terms mean that the elements or objects before the terms encompass the elements or objects listed after the terms and their equivalents, and do not exclude other elements or objects. The terms “connect” or “connected” and similar terms are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. The terms “up”, “down”, “left”, “right”, and the like are used only to indicate relative positional relationships, and when the absolute positions of the described objects change, the relative positional relationships may also change accordingly.
[0041] As used herein, “parallel”, “perpendicular” includes the stated case and the approximately similar case to the stated case, the range of which is within an acceptable deviation range, wherein the acceptable deviation range is determined by a person of ordinary skill in the art considering the measurement being discussed and the error related to the measurement of a specific quantity (i.e., the limitation of the measurement system). For example, “parallel” includes absolute parallel and approximately parallel, wherein the acceptable deviation range of approximately parallel may be, for example, a deviation within 5°; “perpendicular” includes absolute perpendicular and approximately perpendicular, wherein the acceptable deviation range of approximately perpendicular may also be, for example, a deviation within 5°.
[0042] It will be understood that when a layer or element is referred to as being "on" another layer or substrate, it can be directly on the other layer or substrate, or intervening layers can also be present.
[0043] Exemplary embodiments are described herein with reference to cross-sectional and / or plan view illustrations that are idealized examples. In the interest of clarity, not all of the layers and regions that can be present in actual devices are shown in the figures. Thus, the thicknesses of layers and regions shown in the figures can be exaggerated for clarity. It will also be appreciated that the shapes of the regions shown in the figures are intended to show example shapes and are not meant to be limiting. Thus, the exemplary embodiments should not be construed as limited to the shapes shown in the figures, but rather the shapes shown in the figures are meant to be illustrative and not limiting.
[0044] At present, people pay wide attention to intuitively reflecting whether the display device is working by the on-off of the indicator light.
[0045] In some embodiments, the display device is provided with a key indicator light. The key indicator light can serve as a key for switching on / off and the like, and also can serve as an indicator light. In the related art, the key indicator light can realize the light emitting function through a lens. In this case, there is the problem of non-uniform light emission of the lens. In order to ensure uniform light emission of the lens, it is usually necessary to increase additional optical parts such as a guide rail plate, a diffusion plate, and an external plug-in light to ensure uniform light emission of the lens. Obviously, the structure of such a key indicator light is complex, the process preparation is difficult, and the cost is high.
[0046] In other embodiments, the switching key of the display device uses a five-item key, that is, one key can complete the function operation of switching on / off and the like. Such a five-item key generally cannot be provided with a light emitting device, that is, cannot have the function of an indicator light. In addition, in order to develop in the direction of minimalism, sometimes the key for switching on / off and the like is arranged on the non-light emitting side of the display device.
[0047] In the above case, it is usually necessary to arrange a light emitting device and a circuit board electrically connected with the light emitting device in the display device. The light emitting device can be, for example, an LED light. The circuit board is configured to control the LED light to emit light when the display device is working, and control the LED light not to emit light when the display device is not working, so as to indicate whether the display device is working.
[0048] This technical solution undoubtedly increases the design difficulty and preparation cost of the display device as a whole. For example, the design difficulty and preparation cost are increased by the need to reserve the mounting position of the LED light and the circuit board in the display device, the connection line of the LED light and the circuit board, and the need to develop additional software to write programs to realize the control of the circuit board on the LED light.
[0049] To at least alleviate or solve one of the above-mentioned technical problems, the present disclosure provides a display device.
[0050] Figure 1 is a schematic diagram of a planar structure of a light-out side of the display device in some embodiments of the present disclosure. Figure 2 is a schematic diagram of a planar structure of a backlight side of the display device in some embodiments of the present disclosure. Figure 3 is a schematic diagram of a cross-sectional structure of the display device in some embodiments of the present disclosure, in particular, Figure 3 is a schematic diagram of a cross-sectional structure cut along the cutting line AA' in Figure 1 is a schematic diagram of a cross-sectional structure cut along the cutting line AA' in
[0051] In some embodiments, as shown in Figure 1 , Figure 2 and Figure 3 , the present disclosure provides a display device, comprising: a housing 2, a backlight module 1, a display panel 3 located on a light-out side of the backlight module 1, and a light guide piece 5.
[0052] The housing 2 has a first accommodating space, and the housing 2 is provided with a first opening a.
[0053] The backlight module 1 and the display panel 3 are located in the first accommodating space, and the backlight module 1 comprises a back plate 11 and a backlight source 12 located on a side of the back plate 11 facing the display panel 3, and the back plate 11 is provided with a second opening b.
[0054] The light guide piece 5 is located in the first accommodating space and passes through the second opening b. The light guide piece 5 has an incident light surface 501 and an outgoing light surface 502. The incident light surface 501 faces the backlight source 12, and the outgoing light surface 502 faces the first opening a. The light guide piece 5 is used to conduct light rays from the incident light surface 501 to the outgoing light surface 502 and emit from the outgoing light surface 502.
[0055] The light guide piece 5 of the embodiment of the present disclosure passes through the second opening b provided on the back plate 11, and the incident light surface 501 of the light guide piece 5 is arranged opposite to the backlight source 12, that is, part of the light rays of the backlight source 12 enter the light guide piece 5 through the incident light surface 501. Further, the outgoing light surface 502 of the light guide piece 5 of the embodiment of the present disclosure is opposite to the first opening a provided on the housing 2, therefore, the light rays entering the light guide piece 5 can be emitted to the outside of the housing 2 through the outgoing light surface 502, and this part of light rays can be used as light rays of an indicator lamp for indicating whether the display device is working, or it can also be understood that the light guide piece 5 (the outgoing light surface 502) can be used as the indicator lamp.
[0056] Specifically, when the display device is working, the backlight source 12 is on, the light rays propagate through the light guide piece 5, that is, the indicator lamp is on. When the display device is off, the backlight source 12 is off, and the indicator lamp is off, therefore, the light guide piece 5 of the embodiment of the present disclosure can play a role of checking whether the display device is working.
[0057] Optionally, the backlight 12 comprises a lamp 121 and a light guide plate 122, wherein the lamp can be a LED lamp in particular, for providing light source. The light guide plate 122 is used for propagating the light emitted by the LED lamp so as to provide the display panel 3 with light of uniform brightness. Therefore, the light-in surface 501 can be directly opposite to at least one of the lamp 121 and the light guide plate 122, for example, in the embodiment shown in the figure, the light-in surface 501 is directly opposite to the lamp 121. Figure 3 The light-in surface 501 directly opposite to the lamp 121 can directly transmit the light emitted by the LED lamp to the light-out surface 502, thereby improving the indication effect of the indicator lamp.
[0058] Optionally, the lamp 121 is located at at least one side of the light guide plate 122, i.e. the lamp 121 is located at the edge of the accommodating space, so that the first opening a is formed at the position of the shell 2 close to the backlight 12 so as to make the light-in surface 501 directly opposite to the LED lamp, and the second opening b is formed at the position of the back plate 11 close to the backlight 12, thereby facilitating the insertion of the light guide member 5 into the second opening b, so as to realize the function of the indicator lamp.
[0059] The embodiment of the present disclosure only needs to configure the light guide member 5 to realize the function of the indicator lamp, without the need of additionally setting a light emitting device, a circuit board for controlling the light emitting device, etc. The light guide member 5 in the embodiment of the present disclosure can be assembled through the cooperation of the openings, structures (the back plate 11 and the shell 2), etc., thereby eliminating the need of additional fixing elements such as screws, and facilitating the disassembly. Therefore, the embodiment of the present disclosure can greatly reduce the development difficulty and manufacturing cost.
[0060] Moreover, the embodiment of the present disclosure utilizes the backlight 12 in the backlight module 1 as the light source of the indicator lamp, thereby improving the accuracy of indicating whether the display device is working.
[0061] Optionally, the light entering the light guide member 5 is totally reflected in the light guide member 5. The total reflection of the light in the light guide member 5 can avoid the light entering the light guide member 5 from being emitted during the transmission process, thereby avoiding the influence of the emitted light on the brightness of the display device, and avoiding the influence of the emitted light during the transmission process on the display device.
[0062] Optionally, the material of the light guide member 5 is generally made of optical material, for example, the material of the light guide member 5 comprises at least one of acrylic resin, polycarbonate, epoxy resin and glass.
[0063] Optionally, the minimum distance between the backlight 12 and the light-incident surface 501 is between 0.1 mm and 0.3 mm, for example, 0.2 mm. The minimum distance between the backlight 12 and the light-incident surface 501 is between 0.1 mm and 0.3 mm, which can ensure that the light of the backlight 12 can ensure that the light-incident surface 501 timely receives a part of the light from the backlight, and also ensure that the backlight 12 and the light-incident surface 501 have a certain distance, so as to avoid the display device from being affected in normal use due to the collision between the light guide 5 and the backlight during use.
[0064] Optionally, the display panel 3 can be a liquid crystal display panel.
[0065] In some embodiments, as shown in Figure 3 The shell 2 includes a shielding portion 22 and a rear shell 21.
[0066] The rear shell 21 includes a first bottom plate 212 and a plurality of first side plates 211 connected to the edges of the first bottom plate 212. The plurality of first side plates 211 surround the backlight module 1 and the display panel 3. Each first side plate 211 is located at one side of the backlight module 1.
[0067] The shielding portion 22 is connected to at least one first side plate 211, and the shielding portion 22 is located on the side of the display surface of the display panel 3 away from the backlight module 1.
[0068] The first opening a is formed on the shielding portion 22.
[0069] In the embodiments of the present disclosure, the first opening a is formed on the shielding portion 22, that is, the first opening a is directed to the light-out direction of the display panel 3. Since the light-out surface 502 is directed to the first opening a, the light-out surface 502 of the light guide 5 is directed to the light-out direction of the display panel 3. In this case, when the display device is working, the user can determine whether the display device is working by whether the light guide 5 can emit light from the light-out side of the display device.
[0070] In addition, as shown in Figure 1 The display panel 3 includes a display area AA, and the orthographic projection of the shielding portion 22 on the display panel 3 is located outside the display area AA. That is, in the embodiments of the present disclosure, the shielding portion 22 will not shield the display area AA of the display panel 3. The first opening a is formed on the shielding portion 22, that is, the indicator light and the display area AA of the display panel 3 are located at different positions on the same end of the display device, which is convenient for the user to observe the indication effect of the indicator light.
[0071] Figure 4 is a schematic diagram of the perspective structure of an angle of the light guide in some embodiments of the present disclosure. Figure 5 is a schematic diagram of the perspective structure of another angle of the light guide in some embodiments of the present disclosure.
[0072] In some embodiments, as shown in Figure 3 , Figure 4 and Figure 5 , the light guide 5 comprises a light-in portion 51, a light guide portion 52 and a light-out portion 53 connected in sequence. The light-in surface 501 is located at one end of the light-in portion 51 away from the light guide portion 52, and the light-out surface 502 is located at one end of the light-out portion 53 away from the light guide portion 52.
[0073] As shown in Figure 3 , the back plate 11 comprises a second bottom plate 111 and a second side plate 112 connected to the edge of the second bottom plate 111, and the second bottom plate 111 and the second side plate 112 define a second containing space, and the backlight 12 is located in the second containing space. The second opening b is formed on the second bottom plate 111.
[0074] The light-in portion 51 passes through the second opening b, and the light-out portion 53 is located on the side of the second side plate 112 away from the second containing space.
[0075] In the embodiments of the present disclosure, the second opening b is formed on the second bottom plate 111 of the back plate 11, and the light-in portion 51 passes through the second opening b, which can realize that the light-in surface 501 of the light-in portion 51 is opposite to the backlight 12, and the light entering the light-in surface 501 is conducted to the light-out portion 53 through the light guide portion 52, so that the light is guided out through the light-out surface 502 of the light-out portion 53, thereby realizing that the light guide 5 can play the role of an indicator light when the backlight 12 is on.
[0076] Figure 6 is a side structure schematic diagram of the light guide in some embodiments of the present disclosure, wherein Figure 6 (a), (b) and (c) in are side structure schematic diagrams of different viewing angles, respectively.
[0077] Optionally, as shown in Figure 6 , the light guide portion 52 comprises a first portion 521 and a second portion 522 connected in sequence, wherein the first portion 521 is connected with the light-in portion 51, and the second portion 522 is connected with the light-out portion 53. The orthographic projection of the first portion 521 on the back plate 11 covers and exceeds the orthographic projection of the second opening b on the back plate 11.
[0078] Figure 7 is a plane structure schematic diagram of the back plate in some embodiments of the present disclosure, specifically a plane structure schematic diagram of the side of the back plate close to the backlight.
[0079] For example, in one example, as shown in Figure 6As shown, the size of the orthographic projection of the first portion 521 on the back plate 11 is L1 x W1 = 5.6 mm x 2.52 mm, wherein W1 is the width of the first portion 521 in the first direction, and L1 is the length of the first portion 521 in the second direction. As shown, Figure 7 As shown, the size of the orthographic projection of the second opening b on the back plate 11 is L2 x W2 = 5 mm x 1.65 mm, wherein W2 is the width of the second opening b in the first direction, and L2 is the length of the second opening b in the second direction. The second direction is perpendicular to the first direction.
[0080] Specifically, in one example, as shown, Figure 3 As shown, the first direction can be the arrangement direction of the upper and lower sides of the display device when the display device is used on the light-emitting side, and the second direction can be the arrangement direction of the left and right sides of the display device when the display device is used on the light-emitting side.
[0081] It can be understood that the light-incident portion 51 can pass through the second opening b, that is, the orthographic projection of the light-incident portion 51 on the back plate 11 is located within the orthographic projection range of the second opening b on the back plate 11. Therefore, by arranging the first portion, the display device can avoid the part of the light guide portion 52 from continuing to enter the second opening b, that is, the light guide member 5 can be prevented from entering the inside of the backlight module 1 indefinitely, thereby avoiding the influence of the light guide member 5 on the backlight source 12, and ensuring the light-emitting effect of the backlight source 12.
[0082] In some embodiments, as shown, Figure 3 As shown, the side of the rear shell 21 facing the back plate 11 is provided with a first limiting member 201. The light guide portion 52 is clamped between the first limiting member 201 and the bottom plate.
[0083] In the display device, the side of the rear shell 21 facing the back plate 11 is provided with a first limiting member 201, and the bottom plate can clamp the light guide portion 52, that is, the first limiting member 201 and the bottom plate can limit the light guide portion 52 in the thickness direction of the display panel 3, thereby avoiding the light guide member 5 from shaking in the thickness direction of the display panel 3. In the drawings of the display device, the thickness direction of the display panel 3 is denoted as the third direction.
[0084] For example, during the movement of the display device, the first limiting member 201 can prevent the light guide member 5 from falling off from the second opening b or prevent the light-emitting surface 502 from being misaligned with the first opening a, thereby avoiding the light guide effect of the light guide member 5 from being affected and ensuring the indication effect of the indicator lamp.
[0085] Optionally, the specific shape of the first limiting member 201 can be set according to actual needs and process conditions. For example, the orthographic projection of the first limiting member 201 on the display panel 3 can be a long strip shape, a "cross" shape, a "T" shape, or the like.
[0086] Figure 8 is a structural schematic diagram of a display device in some embodiments of the present disclosure, wherein, Figure 8 (a) in FIG. 1 is an overall side view and partial cross-sectional view of the display device, Figure 8 (b) in FIG. 1 is a structural schematic diagram of the first limiting member in (a).
[0087] Optionally, in one example, as shown in (c) in FIG. 1, the orthographic projection of the first limiting member 201 on the display panel 3 is in the shape of a "T". Figure 8
[0088] In some embodiments, as shown in (c) in FIG. 1, the shielding part 22 is provided with at least one bearing part 23 on the side close to the back shell 21, and the bearing part 23 is located on the side of the second side plate 112 away from the backlight 12. The light-emitting part 53 is clamped between the second side plate 112 and the bearing part 23. Figure 3 In the embodiments of the present disclosure, the bearing part 23 is located on the side of the second side plate 112 away from the backlight 12, which can play a role in bearing the backlight 12. At the same time, the light-emitting part 53 is clamped between the second side plate 112 and the bearing part 23, which can preliminarily ensure the stability of the light-emitting part 53 in the arrangement direction of the backlight 12 and the second side plate 112. In the embodiments of the present disclosure, the arrangement direction of the backlight 12 and the second side plate 112 is described as the first direction. And it can be understood that the arrangement direction of the bearing part 23 and the light-emitting part 53 is the same as the first direction. Therefore, by clamping the light-emitting part 53 between the second side plate 112 and the bearing part 23, the embodiments of the present disclosure can avoid the light-emitting part 53 from shaking in the arrangement direction of the backlight 12 and the second side plate 112, thereby affecting the light-emitting effect of the light-emitting surface 502.
[0089] Optionally, the bearing part 23 is provided with at least one first connecting part 24 on the side away from the light-emitting part 53. The second side plate 21 includes a main body part 2111 and a plurality of second connecting parts 2112 located on the side of the main body part 2111 close to the shielding part 22. The first connecting part 24 and the second connecting part 2112 are connected to each other to realize the connection between the shielding part 22 and the second side plate 211.
[0090] In some embodiments, as shown in (c) in FIG. 1, a second limiting member 202 is arranged between the bearing part 23 and the light-emitting part 53, and specifically, the second limiting member 202 can be a wedge-shaped member. The second limiting member 202 is used for limiting the light-emitting part 53 in the first direction. And in the direction close to the first bottom plate 212 or the direction away from the shielding part 22, the thickness of the second limiting member 202 in the first direction becomes smaller and smaller.
[0091] Figure 3
[0092] The second limiting piece 202 can further limit the light emitting part 53 in the first direction, that is, further avoid the light emitting part 53 from shaking in the first direction. In addition, in the direction close to the rear shell 21, the thickness of the second limiting piece 202 in the first direction becomes smaller and smaller, that is, in the direction close to the first opening a, the thickness of the second limiting piece 202 in the first direction becomes larger and larger, which is also beneficial to the installation of the light emitting part 53 in the direction close to the first opening a.
[0093] In some embodiments, as shown in Figure 1 The bearing part 23 is provided with a third limiting piece 203 on the side close to the light emitting part 53 (the light guide part 5), and the third limiting piece 203 is located on the opposite sides of the light emitting part 53 in the second direction, that is, the light emitting part 53 is located between the two third limiting pieces 203. The third limiting piece 203 is used to limit the light emitting part 53 in the second direction, and the second direction intersects with the first direction and the thickness direction of the display panel 3. For example, the first direction, the second direction and the thickness direction of the display panel 3 are perpendicular to each other.
[0094] In the embodiments of the present disclosure, the third limiting piece 203 can avoid the light emitting part 53 from shaking in the second direction, so as to avoid the influence on the light guiding effect of the light guide part 5. Obviously, the first limiting piece 201, the second limiting piece 202 and the third limiting piece 203 in the embodiments of the present disclosure can fix the position of the light guide part 5 in three mutually intersecting directions in the three-dimensional space, so as to ensure the light guiding effect of the light guide part 5.
[0095] Optionally, as shown in Figure 1 The side of the third limiting piece 203 facing the light emitting part 53 (the light guide part 5) can be provided with a protrusion (not labeled in the figure). Similar to the first limiting piece 201, in the direction away from the shielding part 22, the thickness of the protrusion in the direction of the third limiting piece 203 pointing to the light emitting part 53 becomes smaller and smaller, which is beneficial to the installation of the light emitting part 53.
[0096] Figure 9 is a schematic diagram of the installation process of the light guide part in some embodiments of the present disclosure. Among them, Figure 9 (a) in Figure 9 (b) in Figure 9 (c) in
[0097] In some embodiments, as shown in Figure 9 The light guide part 52 and the back plate 11 are provided with adhesive (not shown in the figure).
[0098] For example, in the process of installing the light guide part 5, the adhesive can be applied to the light guide part 5 and the back plate 11 as shown in Figure 9As shown in step (a), apply glue to the surface of the light guide 52 near the back plate 11, and then... Figure 9 As shown in (b), the light guide 5 is installed and fixed to the side of the backplate 11 away from the backlight 12. After the glue has cured, an adhesive is formed. Then, as shown in (b), the light guide 5 is installed and fixed to the side of the backplate 11 away from the backlight 12. Figure 9 As shown in (c), the housing 2 (only the rear shell 21 of the housing is shown in the figure) is installed in the display device.
[0099] The embodiments disclosed herein can connect the light guide part 52 and the back plate 11 by means of adhesive, thereby ensuring the positional stability of the light guide 5 and preventing the light guide 5 from shaking and affecting the light guiding effect of the light guide 5.
[0100] In practical applications, at least one of the two options—applying adhesive between the light guide portion 52 and the back plate 11, and providing the first limiting member 201—can be selected.
[0101] The adhesive allows the light guide 52 to be directly attached to the back plate 11, eliminating the need for the first limiting member 201 on the back cover 21. This facilitates the production of the back cover 21, for example, by reducing the complexity of the mold for the back cover 21. Furthermore, the inclusion of the first limiting member 201 eliminates the risk of adhesive detachment in high-temperature and high-humidity environments. Therefore, those skilled in the art can choose between these two solutions based on actual needs for different application scenarios.
[0102] Figure 10 This is a schematic diagram of light transmission in a light guide element in some embodiments of this disclosure.
[0103] In some embodiments, such as Figure 10 As shown, the light guide 52 includes a connecting surface 503, a first reflecting surface 504, and a second reflecting surface 505. The first reflecting surface 504 and the second reflecting surface 505 are both disposed opposite to the connecting surface 503. The light-incident part 51 and the light-exiting part 53 are both connected to the connecting surface 503. The first reflecting surface 504 is used to reflect the light incident on the first reflecting surface 504 via the light-incident part 51 to the second reflecting surface 505. The second reflecting surface 505 is used to reflect the light from the first reflecting surface 504 to the light-exiting part 53.
[0104] Optionally, the angle of reflection and the angle of incidence when light is reflected on the first reflecting surface 504 can be between 30° and 60°, for example, 45°. The angle of reflection and the angle of incidence when light is reflected on the second reflecting surface 505 can also be between 30° and 60°, for example, 45°.
[0105] The two reflecting surfaces, the first reflecting surface 504 and the second reflecting surface 505, can guide part of the light from the backlight 12 out of the housing 2, so that the light guide 5 can realize the function of the indicator light.
[0106] In some embodiments, the area of the light-in surface 501 is larger than the area of the light-out surface 502. In the embodiments of the present disclosure, the area of the light-in surface 501 is large, so that more light from the backlight 12 can enter the light-in portion 51. Meanwhile, the area of the light-out surface 502 is small, so that the light can be more concentrated, thereby ensuring the brightness of the light emitted by the light-out surface 502, i.e., the embodiments of the present disclosure can increase the brightness of the indicator light, so that the indication effect of the indicator light is more obvious.
[0107] Further, in one example, the width of the light-in portion 51 in the second direction is larger than the width of the light-out portion 53 in the second direction. The width of the light-in portion 51 is large so as to ensure that the light-in surface 501 has sufficient relative area, so that more light can enter the light-in portion 51. The width of the light-out portion 53 is small so that the light entering the light guide 5 can be more concentrated, so that the light emitted by the light-out surface 502 is brighter, thereby ensuring the indication effect of the indicator light.
[0108] In some embodiments, in the direction in which the light-in portion 51 points to the light-out portion 53, at least part of the light guide portion 52 gradually decreases in cross-sectional area perpendicular to the direction in which the light-in portion 51 points to the light-out portion 53. Figure 3 Figure 10 In some embodiments, in the direction in which the light-in portion 51 points to the light-out portion 53, at least part of the light guide portion 52 gradually decreases in width in the second direction.
[0109] Further, as shown in Figure 4 Figure 5 In some embodiments, in the direction in which the light-in portion 51 points to the light-out portion 53, at least part of the light guide portion 52 gradually decreases in width in the second direction.
[0110] The light guide portion 52 gradually decreases in cross-sectional area or width in the embodiments of the present disclosure, so that the light entering the light guide portion 52 from the light-in portion 51 can be more concentrated during the transmission in the light guide portion 52, so that the light guide portion 52 can guide the concentrated light to the light-out portion 53 for emission, thereby ensuring the brightness of the emitted light.
[0111] Optionally, in one example, the shape of the light-in portion 51 can be sheet-shaped. For example, the extension surface of the light-in portion 51 is perpendicular to the thickness direction of the display panel 3, and the cross section of the light-in portion 51 in the thickness direction of the display panel 3 can be strip-shaped. Correspondingly, the cross section of the first opening a is strip-shaped. In this way, after the light-in portion 51 passes through the first opening a, it can be ensured that the light-in portion 51 does not shake in the first opening a. Moreover, the strip-shaped cross section can ensure the area of the light-in surface 501, so that sufficient light can enter the light-in surface 501.
[0112] In some embodiments, as shown in Figure 4 and Figure 5 , the light emitting part 53 comprises a first sub light emitting part 531 and a second sub light emitting part 532, and the light emitting surface 502 is located at one end of the second sub light emitting part 53 away from the first sub light emitting part 531. In combination with Figure 3 , it can be clearly understood that the first sub light emitting part 531 and the second sub light emitting part 532 both extend along the thickness direction of the display panel 3. As shown in Figure 4 and Figure 5 , and the cross-sectional area of the first sub light emitting part 531 perpendicular to the thickness direction of the display panel 3 is greater than the cross-sectional area of the second sub light emitting part 532 perpendicular to the thickness direction of the display panel 3, and at least part of the second sub light emitting part 532 is located in the first opening a.
[0113] In the embodiments of the present disclosure, the cross-sectional area of the first sub light emitting part 531 is greater than the cross-sectional area of the second sub light emitting part 532, which can make the second sub light emitting part 532 further collect the light from the first sub light emitting part 531, and increase the brightness of the light emitted by the light emitting surface 502. Moreover, by locating at least part of the second sub light emitting part 532 in the first opening a, the positions of the first sub light emitting part 531 and the second sub light emitting part 532 can be fixed, and meanwhile, the light emitting surface 502 can be prevented from being misaligned with the first opening a, so as to affect the indication effect of the indicator lamp.
[0114] In some embodiments, as shown in Figure 4 and Figure 5 , the light entering part 51, the light guiding part 52 and the light emitting part 53 are connected as an integrated structure. That is, the light guiding piece 5 in the embodiments of the present disclosure can be prepared by one-piece molding using one material.
[0115] In the embodiments of the present disclosure, the light entering part 51, the light guiding part 52 and the light emitting part 53 are connected as an integrated structure, which can avoid the influence of the difference in refractive index of different materials on the reflection effect of the reflection surface, and the light guiding piece 5 is prepared by one-piece molding using one material, which can simplify the preparation difficulty and reduce the preparation cost.
[0116] Figure 11 is a structural schematic diagram of a display device in some other embodiments of the present disclosure.
[0117] In some embodiments, as shown in Figure 11 , the display device further comprises at least one buffer connecting piece 4. For example, in Figure 11In the shown embodiment, the display device comprises two buffer connectors 4, one of which is located between the display panel 3 and the backlight 12 and is connected with the back plate 11 and the light guide 5. The other buffer connector 4 is located between the light guide 5 and the back plate 11. The buffer connector 4 has a buffering effect while playing a connecting role, avoiding damage to the display device during use or when subjected to pressure.
[0118] Optionally, the material of the buffer connector 4 comprises a flexible material, for example, at least one of plastic or rubber.
[0119] In summary, the light guide of the present disclosure can propagate part of the light of the backlight into the first opening as an indicator light to indicate whether the display device is working. Moreover, the light guide of the present disclosure is assembled by means of clearance fit, saving the connecting wire, saving the circuit board fixing screw, saving the development cost of the related electronic hardware and software of the indicator light, and at the same time, it can also improve the production efficiency of the production line.
[0120] It can be understood that the above embodiments are only exemplary embodiments adopted for illustrating the principles of the present disclosure, and the present disclosure is not limited thereto. Various modifications and improvements can be made by those of ordinary skill in the art without departing from the spirit and essence of the present disclosure, and these modifications and improvements are also considered to be within the protection scope of the present disclosure.
Claims
1. A display device, characterized by comprising: include: A housing having a first receiving space and a first opening; A backlight module and a display panel located on the light-emitting side of the backlight module, the backlight module and the display panel are located in the first accommodating space, and the backlight module includes a back plate and a backlight source located on the side of the back plate facing the display panel, and the back plate has a second opening; A light guide is located within the first accommodating space and passes through the second opening. The light guide has an incident light surface and an exit light surface. The incident light surface faces the backlight source, and the exit light surface faces the first opening. The light guide is used to guide light incident on the incident light surface to the exit light surface and exit from the exit light surface.
2. The display device according to claim 1, wherein The housing includes a shielding portion and a rear shell; The rear shell includes a first bottom plate and a plurality of first side plates connected to the edge of the first bottom plate. The plurality of first side plates surround the backlight module and the display panel, and each first side plate is located on one side of the backlight module. The shielding portion is located on the side of the display surface of the display panel away from the backlight module, and is connected to at least one of the first side panels; The display panel includes a display area, and the orthographic projection of the obstruction portion on the display panel is located outside the display area; The first opening is formed on the shielding part.
3. The display device according to claim 2, wherein The light guide includes a light-incident section, a light-guiding section, and a light-exiting section connected in sequence. The light-incident surface is located at the end of the light-incident section away from the light-guiding section, and the light-exiting surface is located at the end of the light-exiting section away from the light-guiding section. The back plate includes a second base plate and a second side plate connected to the edge of the second base plate. The second base plate and the second side plate define a second receiving space, and the backlight is located in the second receiving space. The second opening is formed on the second base plate; The light-inlet portion passes through the second opening, and the light-outlet portion is located on the side of the second side plate away from the second receiving space.
4. The display device according to claim 3, wherein A first limiting member is provided on the side of the rear shell facing the back plate, and the light guide is clamped between the first limiting member and the bottom plate.
5. The display device according to claim 3, wherein A support portion is provided on the side of the shielding portion near the rear shell, and the support portion is located on the side of the second side plate away from the backlight. A second limiting member is provided between the bearing part and the light-emitting part, and the thickness of the second limiting member gradually decreases in the direction away from the blocking part.
6. The display device according to claim 5, wherein A third limiting member is provided on the side of the support portion near the light-emitting portion. The third limiting member is located on opposite sides of the light-emitting portion in the second direction and is used to limit the light-emitting portion in the second direction. The second direction intersects the first direction and the thickness direction of the display panel. The arrangement direction of the support portion and the light-emitting portion is the same as that of the first direction.
7. The display device according to claim 3, wherein An adhesive is provided between the light guide and the back plate.
8. The display device according to any one of claims 3 to 7, wherein The light guide portion comprises a connecting surface, a first reflecting surface and a second reflecting surface, the first reflecting surface and the second reflecting surface are oppositely arranged with the connecting surface, the light inlet portion and the light outlet portion are connected with the connecting surface, the first reflecting surface is used for reflecting light rays, which are shot at the first reflecting surface through the light inlet portion, to the second reflecting surface, and the second reflecting surface is used for reflecting light rays from the first reflecting surface to the light outlet portion.
9. The display device according to any one of claims 3 to 7, wherein The area of the light inlet surface is greater than the area of the light outlet surface. In the direction in which the light inlet portion points to the light outlet portion, the cross-sectional area of the light guide portion perpendicular to the direction in which the light inlet portion points to the light outlet portion gradually decreases.
10. The display device according to any one of claims 3 to 7, wherein The light outlet portion comprises a first sub light outlet portion and a second sub light outlet portion, the light outlet surface is located at one end of the second sub light outlet portion away from the first sub light outlet portion, the first sub light outlet portion and the second sub light outlet portion both extend along the thickness direction of the display panel, and the cross-sectional area of the first sub light outlet portion perpendicular to the thickness direction of the display panel is greater than the cross-sectional area of the second sub light outlet portion perpendicular to the thickness direction of the display panel, and at least part of the second sub light outlet portion is located in the first opening.