Display screen, display equipment and notebook computer

Abstract

The invention discloses a display screen, display equipment and a notebook computer, and belongs to the technical field of display. The display screen comprises a shell, a light emitting diode assembly and a display panel, the shell is provided with a containing cavity, and the containing cavity is provided with an opening; the light-emitting diode assembly is directly fixed to the shell and located at the bottom of the containing cavity. The display panel is fixed to the side, facing the opening, of the light-emitting diode assembly, the light-emitting diode assembly comprises a light-emitting diode lamp panel, the light-emitting diode lamp panel is fixed to the shell, and a plurality of light-transmitting protrusions are arranged on the light-emitting side of the light-emitting diode lamp panel. According to the display screen, the light emitting diode assembly and the display panel are directly assembled in the shell, and a back plate and a rubber frame in traditional assembly are removed, so that the thickness of the display screen is thinner; and meanwhile, the back plate and the rubber frame are removed, so that the diaphragm of the light-emitting diode assembly can extend towards the side edge, and the problem that the periphery is blued can be effectively solved.

Description

Technical Field

[0001] This application belongs to the field of display technology, and particularly relates to a display screen, a display device, and a notebook computer. Background Art

[0002] In a traditional NB (NoteBook) whole machine (also known as a notebook computer), the assembly thickness of the Mini LED and the liquid crystal display module is relatively thick, which is not conducive to being thin and light. Summary of the Invention

[0003] This application aims to solve at least one of the technical problems existing in the prior art. For this purpose, this application provides a display screen, a display device, and a notebook computer. The display screen is thinner and can also solve the problem of blue light emission around the screen.

[0004] In a first aspect, this application provides a display screen, including:

[0005] A housing having a receiving cavity with an opening;

[0006] A light-emitting diode assembly directly fixed to the housing and located at the bottom of the receiving cavity;

[0007] A display panel fixed to the side of the light-emitting diode assembly facing the opening;

[0008] Wherein, the light-emitting diode assembly includes a light-emitting diode lamp board fixed to the housing, and a plurality of light-transmitting protrusions are provided on the light-emitting side of the light-emitting diode lamp board.

[0009] According to the display screen of this application, the light-emitting diode assembly and the display panel are directly assembled in the housing, removing the backplane and the rubber frame in the traditional assembly, making the display screen thinner; at the same time, due to the removal of the backplane and the rubber frame, the film of the light-emitting diode assembly can extend to the side, which can effectively solve the problem of blue light emission around the screen.

[0010] According to an embodiment of this application, the light-emitting diode lamp board includes a substrate, a light-emitting diode array, and a protective glue layer stacked in sequence. The substrate is fixed to the housing, and the light-transmitting protrusions are formed on the protective glue layer.

[0011] According to an embodiment of this application, the first distance between two adjacent LED devices in the light-emitting diode array is 3.0 mm to 5.0 mm.

[0012] According to an embodiment of this application, along the thickness direction of the light-emitting diode lamp board, the light-transmitting protrusions are arranged in alignment with each LED device in the light-emitting diode array.

[0013] According to an embodiment of the present application, the light-emitting diode assembly further includes a first light homogenizing film, a transmissive and reflective film, a color conversion film, and a second light homogenizing film that are sequentially stacked on the light-emitting diode lamp board.

[0014] According to an embodiment of the present application, a heat-conducting layer is provided between the light-emitting diode lamp board and the housing.

[0015] According to an embodiment of the present application, the material of the housing includes a carbon fiber material, and the display screen further includes:

[0016] A cover glass, which is fixed at the open end and covers the open end to enclose the accommodation cavity.

[0017] According to an embodiment of the present application, the second distance between the side of the light-emitting diode assembly and the cavity wall of the accommodation cavity is 0.2 mm to 0.4 mm.

[0018] In a second aspect, the present application provides a display device, including the display screen according to the foregoing.

[0019] In the display device according to the present application, the display screen is thinner, and at the same time, the problem of blue light emission around the display screen is solved, and the performance of the display device is better.

[0020] According to an embodiment of the present application, the display device further includes a main control device, the main control device is connected to the display screen, a first display driving board is provided in the main control device, a second display driving board is provided in the display screen, and both the first display driving board and the second display driving board are electrically connected to the light-emitting diode assembly in the display screen to drive the light-emitting diode assembly.

[0021] According to an embodiment of the present application, the first display driving board is provided with a power management chip and a backlight driving chip, and a heat dissipation fan is provided in the main control device.

[0022] In a third aspect, the present application provides a notebook computer, including a main body and the display screen according to the foregoing. The main body and the display screen are rotatably connected. A heat dissipation fan and a first display driving board are provided in the main body, a second display driving board is provided in the display screen, the first display driving board is provided with a power management chip and a backlight driving chip, and both the first display driving board and the second display driving board are electrically connected to the light-emitting diode assembly in the display screen through a board-to-board connector to drive the light-emitting diode assembly.

[0023] In the notebook computer according to the present application, the display screen is thinner, so that the overall thickness of the notebook computer is thinner. At the same time, the problem of blue light emission around the display screen is solved, and the performance of the notebook computer is better.

[0024] The additional aspects and advantages of the present application will be partially given in the following description, partially become apparent from the following description, or be understood through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The above and / or additional aspects and advantages of the present application will become apparent and be readily understood from the following description of embodiments in conjunction with the accompanying drawings, where:

[0026] Figure 1 is a schematic structural diagram of a display screen in the related art;

[0027] Figure 2 is a schematic diagram of the principle of blue light around the display screen in the related art;

[0028] Figure 3 is a schematic structural diagram of a display screen provided by an embodiment of the present application;

[0029] Figure 4 is a schematic structural diagram of a light-emitting diode component provided by an embodiment of the present application;

[0030] Figure 5 is a schematic structural diagram of a display device provided by an embodiment of the present application.

[0031] Reference numerals:

[0032] PCB board 10, backplane 20, light-emitting diode component 30, light-emitting diode lamp board 31, substrate 311, light-emitting diode array 312, protective glue layer 313, light-transmitting protrusion 32, first light homogenizing film 33, transmissive and reflective film 34, color conversion film 35, second light homogenizing film 36, light-shielding strip 40, display panel 50, cover glass 60, frame glue 70, housing 80, first display driving board 90, second display driving board 100. Detailed Embodiments

[0033] The embodiments of the present application will be described in detail below. Examples of the embodiments are shown in the accompanying drawings. In the drawings, for clarity, the dimensions of layers, regions, and elements, as well as their relative dimensions, may be exaggerated. Wherever the same or similar reference numerals are used throughout, they denote the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary only for explaining the present application and should not be construed as limiting the present application.

[0034] It should be understood that when an element or layer is referred to as being "on", "adjacent to", "connected to", or "coupled to" another element or layer, it can be directly on, adjacent to, connected, or coupled to the other element or layer, or there may be intervening elements or layers. In contrast, when an element is referred to as being "directly on", "directly adjacent to", "directly connected to", or "directly coupled to" another element or layer, there are no intervening elements or layers. It should be understood that although the terms first, second, third, etc. may be used to describe various elements, components, regions, layers, and / or parts, these elements, components, regions, layers, and / or parts should not be limited by these terms. These terms are only used to distinguish one element, component, region, layer, or part from another element, component, region, layer, or part. Thus, without departing from the teachings of the present disclosure, the first element, component, region, layer, or part discussed below may be referred to as the second element, component, region, layer, or part. And when discussing the second element, component, region, layer, or part, it does not imply that there must be a first element, component, region, layer, or part in the present disclosure.

[0035] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0036] Refer to Figure 1 , Figure 1 shows a conventional assembly structure of a light-emitting diode. In the related art, when the light-emitting diode assembly 30 is assembled, the PCB (Printed Circuit Board) 10 is pasted on the back surface of the backplane 20, where the back surface of the backplane 20 refers to the surface on the side of the backplane 20 facing away from the display module. The edge of the backplane 20 extends towards the side where the front surface is located to form sidewalls, and the display module is assembled between the sidewalls. The display module may include a light-emitting diode assembly 30, a light-shielding tape 40, a display panel 50, and a cover glass 60 stacked in sequence, and the cover glass 60 may be bonded to the display panel 50 through an optical adhesive.

[0037] In some embodiments, the light-emitting diode component 30 may employ Mini LEDs as the light-emitting units. In this assembly structure, the PCB board 10, the backplane 20, and the display module within the backplane 20 are assembled together within the housing of the display screen. Due to the presence of the backplane 20, the thickness of the display screen is relatively thick, which is not conducive to the thinning of the display screen. In addition, a frame adhesive 70 is provided between the sidewall of the light-emitting diode component 30 and the backplane 20. Refer to Figure 2 , Figure 2 , which shows a schematic diagram of the principle of blue light emission around Mini LEDs. Since Mini LEDs typically use blue light excitation, the blue light emitted from the edge portion of the light-emitting diode component 30 is likely to leak out through the gap between the light-emitting diode component 30 and the frame adhesive 70, resulting in blue light emission around the periphery.

[0038] Embodiments of the present application provide a display screen in which the light-emitting diode component 30 and the display panel 50 are directly assembled within the housing of the display screen, removing the backplane 20 and the glue frame 70 in the traditional assembly. Based on the integration of the existing LCM structure with the ABCover of the display screen, an extremely ultra-thin and full-screen display is achieved; at the same time, since the film of the light-emitting diode component 30 can extend to the side, the problem of blue light emission around the periphery can be effectively solved.

[0039] Refer to Figure 3 and Figure 4 , Figure 3 , which shows a cross-sectional schematic diagram of a display screen, Figure 4 , which shows a cross-sectional schematic diagram of a light-emitting diode component 30. An embodiment of the present application provides a display screen. In this embodiment, the display screen includes a housing 80, a light-emitting diode component 30, and a display panel 50. The housing 80 is provided with a receiving cavity, and the receiving cavity has an opening; the light-emitting diode component 30 is directly fixed to the housing 80 and is located at the bottom of the receiving cavity; the display panel 50 is fixed to the side of the light-emitting diode component 30 facing the opening; the cover glass 60 is fixed at the opening and covers the opening to enclose the receiving cavity; wherein, the light-emitting diode component 30 includes a light-emitting diode lamp board 31, the light-emitting diode lamp board 31 is fixed to the housing 80, and a plurality of light-transmitting protrusions 32 are provided on the light-emitting side of the light-emitting diode lamp board 31.

[0040] The side where the opening of the housing 80 is located is the display surface (i.e., the front) of the display screen. The edge of the housing 80 of the display screen extends towards the front side to form a sidewall, and the sidewall and the bottom of the housing 80 surround to form the receiving cavity. Among them, the included angle between the sidewall and the bottom can be 90°, and rounded corners are formed on the outer sides of the connection transition regions between the sidewall and the bottom to avoid damage caused by collision. The inner side of the connection transition region can be a rounded corner or a right angle.

[0041] The light-emitting diode component 30 can be fixed to the front surface of the housing 80 by means such as pasting or soldering. The side of the light-emitting diode component 30 can be close to the side wall of the housing 80. Thus, the backplane 20 and the rubber frame 70 in the traditional assembly structure can be not required inside the display screen.

[0042] In some embodiments, the light-emitting diode component 30 can be fixed to the housing 80 through a heat-conducting material. Thus, the heat of the light-emitting diode component 30 can be quickly conducted to the housing 80 for heat dissipation, avoiding too high temperature inside the display screen and preventing abnormal conditions of the display module due to overheating.

[0043] The display panel 50 can include a first polarizer, a TFT (Thin Film Transistor) array substrate, a color filter substrate, and a second polarizer that are sequentially stacked. The first polarizer is arranged on the side close to the light-emitting diode component 30, and the second polarizer is arranged on the side close to the cover glass 60. The cover glass 60 and the second polarizer are bonded through an optical adhesive. Among them, the structure and principle of the display panel 50 have mature technologies, and will not be elaborated herein in this embodiment.

[0044] In the light-emitting diode lamp board 31, a plurality of LED devices are arranged in an array. The LED devices emit light under the drive of a driving chip, thereby providing a backlight source for the display screen. The light-emitting side of the light-emitting diode lamp board 31 refers to the side of the light-emitting diode lamp board 31 facing the display panel 50. The light emitted by the light-emitting diode lamp board 31 passes through the display panel 50 for imaging. The imaging principle of the display panel 50 has mature technologies, and will not be elaborated herein in this embodiment.

[0045] It should be noted that the LED device array is arranged inside the light-emitting diode lamp board 31, and a light-transmitting protrusion 32 is formed on the surface of the light-emitting diode lamp board 31 located on the light-emitting side. The light emitted by the LED device array can pass through from the light-transmitting protrusion 32. Thus, the light-transmitting protrusion 32 can achieve an effect of homogenizing the light, and can solve the problem of light shadows caused by insufficient mixing of LEDs.

[0046] The surface of the light-emitting diode lamp board 31 located on the light-emitting side can adopt a light-transmitting material. The light emitted by the LED device array can pass through the entire surface and the light-transmitting protrusion 32 at the same time. At this time, the light-transmitting protrusion 32 can also achieve an effect of homogenizing the light and avoid light shadows.

[0047] In some embodiments, the light-transmitting protrusion 32 can be formed by printing. First, a printing grid is arranged on the light-emitting diode lamp board 31; then, glue is dispensed into the printing grid; finally, the printing grid is scraped flat and the printing grid is removed, and the colloid filled in the grid forms the light-transmitting protrusion 32.

[0048] The light-emitting side of the light-emitting diode lamp board 31 is the front side, and the side opposite to the light-emitting side is the back side. The back side of the light-emitting diode lamp board 31 can be fixed to the housing 80 by means of pasting or welding.

[0049] In some embodiments, the display screen further includes a cover glass 60, which is fixed at the open end and covers the open end to enclose the accommodation cavity. By covering the front display with the cover glass 60, a full-screen effect can be achieved.

[0050] As an example, a stepped structure is formed at the top of the side wall of the housing 80, and the stepped structure has a stepped surface. The stepped surface is parallel to the top surface of the side wall. The cover glass 60 is covered on the stepped surface and fixed by dispensing glue. The top surface of the cover glass 60 is parallel to the top surface of the side wall. The height of the top surface of the cover glass 60 can be less than or equal to the height of the top surface of the side wall. Thus, the thickness of the top of the side wall of the housing 80 is thinner, which is beneficial to the display screen to achieve a narrow border. At the same time, the thickness of the display screen is equal to the height of the side wall, and then the display module in the display screen is thinner, which is beneficial to the display screen to achieve thinness.

[0051] In some other embodiments, the Panel size can also be increased by increasing the Mask process to cover the front display, and a full-screen effect can be achieved.

[0052] According to the display screen of the present application, the light-emitting diode component 30 and the display panel 50 are directly assembled in the housing, removing the backplane 20 and the glue frame 70 in the traditional assembly, making the display screen thinner; at the same time, due to the removal of the backplane 20 and the glue frame 70, the film of the light-emitting diode component 30 can extend to the side, which can effectively solve the problem of blue light emission around.

[0053] In some embodiments, a heat-conducting layer is provided between the light-emitting diode lamp board 31 and the housing 80.

[0054] The material of the heat-conducting layer includes heat-conducting materials. The heat-conducting layer can conduct the heat generated when the light-emitting diode lamp board 31 works to the housing 80, which can avoid the over-high temperature inside the display screen and prevent the display module from malfunctioning due to overheating. The heat-conducting layer can also have viscosity, and the light-emitting diode lamp board 31 is pasted on the housing 80 through the heat-conducting layer.

[0055] In some embodiments, the light-emitting diode lamp board 31 includes a substrate 311, a light-emitting diode array 312, and a protective glue layer 313 that are sequentially stacked. The substrate 311 is fixed to the housing 80, and the light-transmitting protrusion 32 is formed on the protective glue layer 313.

[0056] The substrate 311 can be pasted on the housing 80 through an adhesive, and the adhesive can be a thermally conductive adhesive or the like. An LED driving circuit can be formed on the substrate 311, and each LED device in the light-emitting diode array 312 is connected to the LED driving circuit, and the LED driving circuit is used to drive the LED device to emit light.

[0057] The protective glue layer 313 covers the light-emitting diode array 312 to wrap the sides and the top of each LED device. Thus, the LED device can be isolated from the outside to protect the LED device.

[0058] The material of the protective glue layer 313 is a light-transmitting material, and the light emitted by the LED device can pass through the protective glue layer 313. At the same time, the protective glue layer 313 is provided with a light-transmitting protrusion 32, and the light emitted by the LED device also passes through the light-transmitting protrusion 32, achieving a homogenizing effect and avoiding light shadows.

[0059] In some embodiments, the first distance between two adjacent LED devices in the light-emitting diode array 312 is 3.0 mm to 5.0 mm.

[0060] In the related art, in order to provide sufficient light sources for the light-emitting diode array 312, a large number of LED devices are required, and the size of the LED devices is usually 50 to 200 μm. The distance between two adjacent LED devices is about 2.0 mm. For example, there are about 9000 LED devices in a display partition.

[0061] In this embodiment, when the light-emitting diode array 312 has a good light homogenizing effect, the number of LED devices can be reduced, and the distance between two adjacent LED devices can be increased. The distance between two adjacent LED devices is about 4.0 mm. For example, there can be about 4000 LED devices in a display partition of the same size as the foregoing.

[0062] In some embodiments, along the thickness direction of the light-emitting diode lamp board 31, the light-transmitting protrusion 32 is arranged in alignment with each LED device in the light-emitting diode array 312.

[0063] In this embodiment, the number of the light-transmitting protrusions 32 can be the same as the number of the LED devices in the light-emitting diode array 312, and each light-transmitting protrusion 32 is arranged corresponding to each LED device. In the light-emitting direction, the light-transmitting protrusion 32 and the corresponding LED device are arranged in a straight line. Taking the LED device being located below and the light-transmitting protrusion 32 being located above as an example, the light-transmitting protrusion 32 is arranged directly above the LED device.

[0064] As an example, there is a certain thickness of protective glue reserved between the bottom of the light-transmitting protrusion 32 and the LED device, so that the LED device is not exposed. Since the protective glue layer 313 itself is light-transmitting, the light emitted by the LED device can still pass through, and the light-transmitting protrusion 32 plays a role in light homogenization. Of course, the bottom of the light-transmitting protrusion 32 can also directly expose the LED device.

[0065] In some embodiments, the light-emitting diode assembly 30 further includes a first light homogenization film 33, a transmissive reflective film 34, a color conversion film 35, and a second light homogenization film 36 that are sequentially stacked on the light-emitting diode lamp board 31.

[0066] The transmissive reflective film 34 can be a BLT film (blue light transmitting mirror film), which is a high-precision nano-graded laminated structure. The function of the BLT film is to transmit blue light and reflect red light and green light, thereby reducing the loss of red and green light.

[0067] The color conversion film 35 can be a quantum dot film (also known as a QD film). The quantum dot film is a film composed of a large number of quantum dot particles prepared based on quantum dot technology. Quantum dots are a type of nanomaterial with quantum size effects, which can confine the movement of electrons and holes and have discrete electron energy levels and energy band structures. The QD film can convert a part of the blue light emitted by the light-emitting diode assembly 30 into green light and red light with a very narrow wavelength distribution, thereby reducing light loss and improving a certain light efficiency.

[0068] It should be noted that since the light-emitting diode lamp board 31 has a good light homogenization effect, the light-emitting diode assembly 30 can use fewer light homogenization films to further reduce the thickness of the display screen. The light-emitting diode assembly 30 in this embodiment only uses two light homogenization films, which is less in number and the display screen is thinner compared to using four or more light homogenization films in the related art.

[0069] In some embodiments, a diffusion prism can also be provided between the second light homogenization film 36 and the display panel 50. In addition, the arrangement order of the first light homogenization film 33, the transmissive reflective film 34, the color conversion film 35, and the second light homogenization film 36 can also adopt other orders, and this embodiment does not limit this.

[0070] In some embodiments, the second distance between the side of the light-emitting diode assembly 30 and the cavity wall of the accommodation cavity is 0.2 mm to 0.4 mm.

[0071] It can be understood that the cavity wall of the accommodation cavity refers to the side wall of the housing 80. The side of the light-emitting diode assembly 30 is arranged close to the cavity wall of the accommodation cavity, which can avoid the problem of blue light emission around the display screen.

[0072] As an example, the first light homogenizing film 33, the transmissive and reflective film 34, the color conversion film 35, and the second light homogenizing film 36 in the light emitting diode assembly 30 can extend towards the periphery to be close to the side wall of the housing 80. The edges of the first light homogenizing film 33, the transmissive and reflective film 34, the color conversion film 35, and the second light homogenizing film 36 can be flush, and the side edges of these film sheets are the side edges of the light emitting diode assembly 30.

[0073] Compared with Figure 2 the size of the light emitting diode lamp board 31 can remain unchanged, and the film sheets on the light emitting diode lamp board 31 (in this embodiment, these film sheets refer to the first light homogenizing film 33, the transmissive and reflective film 34, the color conversion film 35, and the second light homogenizing film 36) extend towards the periphery, and the edges are away from the display area. Thereby, the distance between the light emitting diode assembly 30 and the side wall of the housing 80 can be reduced, and the leaked blue light can be reduced.

[0074] As an example, the second distance between the side edges of the film sheets (the first light homogenizing film 33, the transmissive and reflective film 34, the color conversion film 35, and the second light homogenizing film 36) in the light emitting diode assembly 30 and the cavity wall of the accommodating cavity is 0.3 mm.

[0075] In some embodiments, the material of the housing 80 includes carbon fiber material.

[0076] Carbon Fiber is made of carbonized fibers treated with epoxy coating and graphite woven. Its advantages are light weight and high tensile strength. The housing 80 can be made of carbon fiber material, which can reduce the weight of the display screen and achieve thinning.

[0077] In some embodiments, the thickness of the housing 80 can be greater than or equal to 0.6 mm. Since the thickness of the housing 80 will affect the strength of the housing 80, and in this embodiment, the display modules are assembled on the housing 80, the thickness of the housing 80 in this embodiment is selected to be greater than or equal to 0.6 mm to ensure the strength.

[0078] An embodiment of the present application further provides a display device, including the display screen according to the foregoing. The structure and principle of the display screen can refer to the foregoing embodiments, and will not be elaborated herein.

[0079] According to the display device of the present application, the display screen is thinner, and at the same time, the problem of blue light emission around the display screen is solved, and the performance of the display device is better.

[0080] Refer to Figure 5, in some embodiments, the display device further includes a main control device. The main control device is connected to the display screen. A first display driving board 90 is provided in the main control device, and a second display driving board 100 is provided in the display screen. Both the first display driving board 90 and the second display driving board 100 are electrically connected to the light-emitting diode assembly 30 in the display screen to drive the light-emitting diode assembly 30.

[0081] The first display driving board 90 can be respectively connected to the second display driving board 100 and the light-emitting diode assembly 30 through a BTB (Board-to-Board) connector. The second display driving board 100 can be connected to the light-emitting diode assembly 30 through a COF (Chip On Film).

[0082] Referring to the foregoing, the light-emitting diode assembly 30 includes a light-emitting diode lamp board 31. The light-emitting diode lamp board 31 includes a substrate 311. A driving circuit and a bonding area are formed on the substrate 311. The first display driving board 90 and the second display driving board 100 can be bonded to the bonding area.

[0083] In this embodiment, the driving circuit board of the light-emitting diode assembly 30 is divided into two parts and are respectively arranged in the display screen and the main control device. Thereby, the heat generated by the driving circuit board part in the display screen can be reduced, avoiding the over-high temperature inside the display screen and preventing the display module from malfunctioning due to overheating. At the same time, the occupation of the space inside the display screen can also be reduced, realizing a thinner and lighter design. Among them, the specific circuit structure on the driving circuit board already has mature technologies, and will not be elaborated in this embodiment.

[0084] In some embodiments, the first display driving board 90 is provided with a power management chip and a backlight driving chip, and a cooling fan is provided in the main control device.

[0085] It can be understood that the cooling fan is used to dissipate heat inside the main control device, so the heat dissipation capacity of the main control device is stronger. Therefore, arranging more heat generation on the main control device side can reduce the heat generated inside the display screen while ensuring the normal operation of the driving circuit board.

[0086] It can be understood that the power management chip (also known as BUCK IC) and the backlight driving chip (also known as Bcon) are high-heat generating chips. By arranging them on the main control device side, the heat generated inside the display screen can be reduced. The driving circuit board of the light-emitting diode assembly 30 usually further includes a timing controller, and this timing controller can be arranged on the second display driving board 100.

[0087] An embodiment of the present application further provides a notebook computer, including a main body and the display screen according to the foregoing. The main body and the display screen are rotatably connected.

[0088] It can be understood that the main body includes a main body case, a main board, a battery, etc. assembled inside the main body case, and input components such as a keyboard or a remote control component are also assembled on the main body case. The main body case is rotatably connected to the housing 80 of the display screen. The display screen can be rotated to cover the main body.

[0089] For the laptop computer according to the present application, the thickness of the display screen is thinner, making the overall thickness of the laptop computer thinner. At the same time, the problem of blue edges around the display screen is solved, and the performance of the laptop computer is better.

[0090] In some embodiments, a cooling fan, a first display driver board 90 are provided inside the main body, and a second display driver board 100 is provided inside the display screen. The first display driver board 90 is provided with a power management chip and a backlight driver chip. Both the first display driver board 90 and the second display driver board 100 are electrically connected to the light-emitting diode assembly 30 inside the display screen through a board-to-board connector to drive the light-emitting diode assembly.

[0091] Referring to the foregoing, the light-emitting diode assembly 30 includes a light-emitting diode lamp board 31. The light-emitting diode lamp board 31 includes a substrate 311. A driving circuit and a bonding area are formed on the substrate 311. The first display driver board 90 and the second display driver board 100 can be bonded to the bonding area. The first display driver board 90 can be assembled with the main board inside the main body to form a multi-layer board structure, or the first display driver board 90 can be a part of the main board.

[0092] The main body is provided with a cooling fan, and its heat dissipation ability is stronger. Therefore, when more heat is arranged on the main control device side to ensure the normal operation of the drive circuit board, the heat generated inside the display screen can be reduced.

[0093] In this embodiment, the drive circuit board of the light-emitting diode assembly 30 is divided into two parts and arranged inside the display screen and the main body respectively. Thereby, the heat generated by the drive circuit board part inside the display screen can be reduced, avoiding too high temperature inside the display screen and preventing the display module from malfunctioning due to overheating; at the same time, the occupation of the space inside the display screen can also be reduced, realizing thin and light. Among them, the specific circuit structure on the drive circuit board has mature technologies, and this embodiment will not be elaborated here.

[0094] In some embodiments, the first display driver board 90 is provided with a power management chip and a backlight driver chip.

[0095] The power management chip and the backlight driver chip are high-heat-generating chips. By arranging them on the main body side, the heat generated inside the display screen can be reduced. The drive circuit board of the light-emitting diode assembly 30 usually further includes a timing controller, and this timing controller can be arranged on the second display driver board 100.

[0096] Although embodiments of the present application have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present application. The scope of the present application is defined by the claims and their equivalents.

Claims

1. A display screen, characterized in that, it includes: a housing, the housing is provided with a receiving cavity, and the receiving cavity is provided with an opening; a light-emitting diode assembly, directly fixed to the housing and located at the bottom of the receiving cavity; a display panel, fixed to a side of the light-emitting diode assembly facing the opening; wherein, the light-emitting diode assembly includes a light-emitting diode lamp board, the light-emitting diode lamp board is fixed to the housing, and a plurality of light-transmitting protrusions are provided on a light-emitting side of the light-emitting diode lamp board.

2. The display screen according to claim 1, characterized in that, the light-emitting diode lamp board includes a substrate, a light-emitting diode array and a protective glue layer stacked in sequence, the substrate is fixed to the housing, and the light-transmitting protrusions are formed on the protective glue layer.

3. The display screen according to claim 2, characterized in that, a first distance between two adjacent LED devices in the light-emitting diode array is 3.0 mm to 5.0 mm.

4. The display screen according to claim 2, characterized in that, along a thickness direction of the light-emitting diode lamp board, the light-transmitting protrusions are arranged in alignment with each LED device in the light-emitting diode array.

5. The display screen according to any one of claims 1-4, characterized in that, the light-emitting diode assembly further includes a first light homogenizing film, a transmissive and reflective film, a color conversion film and a second light homogenizing film stacked in sequence on the light-emitting diode lamp board.

6. The display screen according to claim 5, characterized in that, a heat-conducting layer is provided between the light-emitting diode lamp board and the housing.

7. The display screen according to any one of claims 1-4, characterized in that, the material of the housing includes a carbon fiber material, and the display screen further includes: a cover glass, fixed at the opening and covering the opening to close the receiving cavity.

8. The display screen according to any one of claims 1-4, characterized in that, a second distance between a side of the light-emitting diode assembly and a cavity wall of the receiving cavity is 0.2 mm to 0.4 mm.

9. A display device, characterized in that, it includes the display screen according to any one of claims 1-8.

10. The display device according to claim 9, characterized in that, the display device further includes a main control device, the main control device is connected to the display screen, a first display driving board is provided in the main control device, a second display driving board is provided in the display screen, and both the first display driving board and the second display driving board are electrically connected to a light-emitting diode assembly in the display screen to drive the light-emitting diode assembly.

11. The display device according to claim 10, characterized in that, the first display driving board is provided with a power management chip and a backlight driving chip, and a heat dissipation fan is provided in the main control device.

12. A notebook computer, characterized in that, Comprising a host and a display screen according to any one of claims 1-8, the host and the display screen are rotationally connected. A heat dissipation fan and a first display driving board are provided in the host, and a second display driving board is provided in the display screen. The first display driving board is provided with a power management chip and a backlight driving chip. Both the first display driving board and the second display driving board are electrically connected to a light-emitting diode assembly in the display screen through a board-to-board connector to drive the light-emitting diode assembly.

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