Liquid crystal display device

Abstract

The application relates to a liquid crystal display device, which comprises a backlight module, a display panel and a front frame. The display panel is arranged on the light-emitting side of the backlight module, the front frame is arranged around the edge of the display panel and connected with the backlight module, the front frame comprises a front wall and a side wall connected with the front wall by bending, and the side wall comprises an adjusting area. The liquid crystal display device further comprises an adjusting mechanism, which penetrates the adjusting area and the backlight module and is used for adjusting the acting force between the display panel and the backlight module in a first direction, wherein the first direction is the backlight direction of the display panel. By arranging the adjusting area on the side wall of the front frame and arranging the adjusting mechanism in the adjusting area, the acting force between the display panel and the backlight module is adjusted, the operator is assisted to install the liquid crystal display device, the pressing force is controllable, the separation of the array substrate and the color film substrate caused by the too small pressing force can be avoided, and the damage of the color film substrate caused by the too large pressing force can also be avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of display, in particular to a liquid crystal display device. BACKGROUND

[0002] The liquid crystal display device includes a backlight module and a liquid crystal display panel (LCD for short), wherein the liquid crystal display panel includes an array substrate, a color film substrate and a liquid crystal layer between the array substrate and the color film substrate. The array substrate is adhered to the backlight module by optical glue. The backlight module provides a light source for the liquid crystal display panel, and by controlling the voltage between the array substrate and the color film substrate, the deflection of the liquid crystal molecules in the liquid crystal layer is controlled to realize image display.

[0003] In the related art, the array substrate and the color film substrate are fixed as a whole by the front frame, that is, by pressing the frame of the liquid crystal display panel, the liquid crystal display device is installed. However, in the related art, the pressing force is difficult for the operator to control, which eventually leads to the separation of the array substrate and the color film substrate. SUMMARY

[0004] The present application aims to provide a liquid crystal display device to solve the technical problem that in the prior art, the pressing force between the color film substrate and the array substrate during installation of the liquid crystal display device is difficult for the operator to control, which eventually leads to the separation of the array substrate and the color film substrate.

[0005] In a first aspect, an embodiment of the present application provides a liquid crystal display device, comprising a backlight module, a display panel and a front frame, the display panel is located on the light emitting side of the backlight module, the front frame is arranged around the edge of the display panel and connected with the backlight module, the front frame comprises a front wall and a side wall connected with the front wall by bending, and the side wall comprises an adjusting area.

[0006] The liquid crystal display device further comprises an adjusting mechanism, the adjusting mechanism penetrates through the adjusting area and the backlight module, and is used for adjusting the acting force between the display panel and the backlight module along a first direction, the first direction being the backlight direction of the display panel.

[0007] In a possible implementation, the adjusting area comprises an elastic surplus area arranged in a hollow manner and a windowed area in communication with the elastic surplus area, the windowed area is provided with an elastic bow, and the elastic bow is deformable along the first direction.

[0008] The adjusting mechanism is a fastener, the fastener is arranged between the elastic surplus area and the elastic bow, and the inner contour size of the elastic surplus area is greater than the outer diameter size of the fastener.

[0009] In a possible implementation, the windowed area comprises a first edge and a second edge arranged oppositely, the elastic bow comprises a fixed end and a free end, the fixed end is connected with the first edge, and when the elastic bow is deformed along the first direction, the free end abuts to the second edge.

[0010] In a possible implementation, the elastic arch is a strip-shaped structure that is curved in a direction towards the elastic surplus area.

[0011] In a possible implementation, the elastic arch is a strip-shaped structure that is curved in a direction away from the elastic surplus area.

[0012] In a possible implementation, the side wall is further provided with a gear assembly, the gear assembly is connected with the fixed end of the elastic arch, and the gear assembly has a plurality of gears for adjusting the deformation amount of the elastic arch according to the gears.

[0013] In a possible implementation, the gear assembly includes a knob and a coil spring, the knob is arranged on a side of the side wall away from the backlight module, the coil spring is arranged on a side of the side wall towards the backlight module, one end of the coil spring is connected with the knob, and the other end of the coil spring is connected with the fixed end of the elastic arch, and the gear assembly controls the extension length of the coil spring by rotating the gears of the knob, so as to adjust the deformation amount of the elastic arch.

[0014] In a possible implementation, the number of elastic arches is two, and the two elastic arches are symmetrically arranged relative to the middle line of the windowed area.

[0015] In a possible implementation, the backlight module further includes a middle frame and a back plate, the middle frame is located on a side of the back plate away from the front frame, the back plate and the middle frame are respectively provided with a first through hole and a second through hole, and the adjusting mechanism sequentially penetrates through the adjusting area, the first through hole and the second through hole.

[0016] In a possible implementation, a buffer strip is further included, and the buffer strip is arranged between the display panel and the front wall of the front frame.

[0017] The liquid crystal display device provided by the embodiment of the present application adjusts the acting force between the display panel and the backlight module by arranging the adjusting area on the side wall of the front frame and arranging the adjusting mechanism in the adjusting area, thereby assisting the operator to install the liquid crystal display device, making the pressing force controllable, avoiding the separation of the array substrate and the color film substrate due to the too small pressing force, and also avoiding the damage of the color film substrate due to the too large pressing force. BRIEF DESCRIPTION OF DRAWINGS

[0018] The features, advantages, and technical effects of the exemplary embodiments of the present application will be described below with reference to the accompanying drawings. In the drawings, the same components are denoted by the same reference numerals. The drawings are not drawn according to the actual proportions, but are used only to show the relative positional relationship, and the layer thickness of some parts is exaggerated in the drawing for the purpose of understanding. The layer thickness in the drawings does not represent the proportional relationship of the actual layer thickness.

[0019] Figure 1Structure schematic diagram of the liquid crystal display device provided by the embodiment one of the present application is shown.

[0020] Figure 2 Left view of the M area in the liquid crystal display device provided by the embodiment one of the present application is shown.

[0021] Figure 3 Left view of the M area in the liquid crystal display device provided by the embodiment two of the present application is shown.

[0022] Figure 4 Left view of the M area in the liquid crystal display device provided by the embodiment three of the present application is shown.

[0023] Figure 5 Left view of the M area in the liquid crystal display device provided by the embodiment four of the present application is shown.

[0024] Figure 6 Left view of the M area in the liquid crystal display device provided by the embodiment five of the present application is shown.

[0025] Figure 7 Sectional view of the gear assembly in the liquid crystal display device provided by the embodiment five of the present application is shown.

[0026] Explanation of reference signs:

[0027] 1, backlight module; 11, back plate; 111, first through hole; 12, middle frame; 121, second through hole; 13, light emitting assembly; 131, light emitting element; 14, optical assembly; 141, diffusion plate; 142, optical film; 15, elastic support column;

[0028] 2, display panel; 21, array substrate; 22, color film substrate; 23, liquid crystal layer; 24, upper polarizer; 25, lower polarizer;

[0029] 3, front frame; 31, front wall; 32, side wall; 33, adjusting area; 331, elastic excess area; 332, windowed area; a, first side; b, second side; 34, elastic bow; 341, fixed end; 342, free end; 35, gear assembly; 351, knob; 352, helical spring

[0030] 4, adjusting mechanism;

[0031] 5, buffer strip. DETAILED DESCRIPTION

[0032] Features and exemplary embodiments of various aspects of the present application will be described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, it will be apparent to one of ordinary skill in the art that the present application can be practiced without some or all of these specific details. The description of the embodiments is merely intended to provide a better understanding of the present application by showing examples of the present application. In the drawings and the following description, well-known structures and techniques are not shown in order to avoid unnecessary obscurity of the present application; and, for clarity, the dimensions of regions can be exaggerated. Furthermore, features, structures, or characteristics described below can be combined in any suitable manner in one or more embodiments.

[0033] The liquid crystal display panel 2 comprises an array substrate 21, a color filter substrate 22, and a liquid crystal layer 23 between the array substrate 21 and the color filter substrate 22. By controlling the voltage between the array substrate 21 and the color filter substrate 22, the deflection of the liquid crystal molecules in the liquid crystal layer 23 is controlled to realize image display.

[0034] In the cell process of the liquid crystal display panel 2, the array substrate 21 and the color filter substrate 22 need to be pressed. However, in the related art, it is difficult for an operator to control the pressing force, which may result in separation of the array substrate 21 and the color filter substrate 22 or damage to the array substrate 21 and the color filter substrate 22.

[0035] Therefore, embodiments of the present application provide a liquid crystal display device. By arranging an adjusting area 33 on the side wall 32 of the front frame 3 and arranging an adjusting mechanism 4 in the adjusting area 33, the adjusting mechanism 4 adjusts the force between the display panel 2 and the backlight module 1, and assists the operator to install the liquid crystal display device, so that the pressing force is controllable.

[0036] The specific structure of the liquid crystal display device provided by the embodiments of the present application will be described below with reference to the accompanying drawings.

[0037] First embodiment

[0038] Figure 1 A structure schematic diagram of the liquid crystal display device provided by the first embodiment of the present application is shown.

[0039] As shown in Figure 1 The first embodiment of the present application provides a liquid crystal display device, which comprises a liquid crystal display panel 2 and a backlight module 1 arranged on the backlight side of the liquid crystal display panel 2. The backlight module 1 is used to provide a light source for the liquid crystal display panel 2.

[0040] The liquid crystal display panel 2 can be a single display panel 2 or a dual display panel 2 stacked in the thickness direction. When the liquid crystal display panel 2 is a dual display panel 2, the display panel 2 located at the bottom layer is used for light control, and the display panel 2 located at the top layer is used for display. This arrangement can improve the contrast of the liquid crystal display device. For ease of description, the embodiments of this application are described using a single display panel 2 as an example.

[0041] In addition, the liquid crystal display device also includes an upper polarizer 24 located on the light-emitting side of the liquid crystal display panel 2, a lower polarizer 25 located on the backlight side of the liquid crystal display panel 2, and a cover plate (not shown) located on the side of the upper polarizer 24 facing away from the liquid crystal display panel 2. The lower polarizer 25 and the upper polarizer 24 can polarize the incident light of the liquid crystal display panel 2 to allow light vibrating in only one direction to be transmitted.

[0042] The liquid crystal display panel 2 includes an array substrate 21, a color filter substrate 22 opposite to the array substrate 21, and a liquid crystal layer 23 located between the array substrate 21 and the color filter substrate 22.

[0043] like Figure 1 As shown, the liquid crystal display device provided in Embodiment 1 of this application includes a backlight module 1, a display panel 2 and a front frame 3. The display panel 2 is located on the light-emitting side of the backlight module 1, and the front frame 3 is disposed around the edge of the display panel 2 and connected to the backlight module 1.

[0044] The front frame 3 includes a front wall 31 and a side wall 32 that is bent and connected to the front wall 31. The side wall 32 includes an adjustment area 33.

[0045] The liquid crystal display device also includes an adjustment mechanism 4, which passes through the adjustment area 33 and the backlight module 1, and is used to adjust the force between the display panel 2 and the backlight module 1 along a first direction, where the first direction is the backlight direction of the display panel 2.

[0046] The backlight module 1 includes a backplate 11, a light-emitting component 13, and an optical component 14. The light-emitting component 13 is located on the backplate 11 and includes a circuit board (not shown) and a plurality of light-emitting elements 131 disposed on the circuit board. The optical component 14 is located on the side of the light-emitting component 13 away from the backlight plate, and the orthographic projection of the optical component 14 on the backlight plate covers the orthographic projection of the plurality of light-emitting elements 131 on the backlight plate.

[0047] The light-emitting assembly 13 includes a circuit board and a plurality of light-emitting elements 131 disposed on the circuit board. The light-emitting elements 131 can be light-emitting diodes (LEDs) of a conventional size, or can be any one of micro-LEDs or mini-LEDs. A micro-LED refers to an LED chip with a grain size of less than 100 microns, and a mini-LED refers to an LED chip with a grain size of about 100-300 microns. The LED, mini-LED, or micro-LED can be displayed as a self-luminous light-emitting element 131, and has the advantages of low power consumption, high brightness, high resolution, high color saturation, fast response speed, long service life, high efficiency, and the like.

[0048] The back plate 11 can be made of a metal material, such as any one of an aluminum plate, an aluminum alloy plate, or a galvanized steel plate, using a stamping process or the like. The metal material has good ductility, and can protect the backlight module 1 from breaking under the impact of external forces. The back plate 11 can also be made of a plastic material, such as polyimide, polycarbonate, polyether sulfone, polyethylene terephthalate, polyethylene, or the like, to reduce the weight and cost of the backlight module 1. The shape of the back plate 11 can be the same as that of the liquid crystal display panel 2 using the backlight module 1. For example, when the shape of the liquid crystal display panel 2 is circular, the shape of the backlight plate of the backlight module 1 used thereby is also circular. The shape of the back plate 11 can vary with different embodiments.

[0049] The optical assembly 14 includes a diffusion plate 141 and an optical film 142 located on the side of the diffusion plate 141 away from the back plate 11. The diffusion plate 141 and the optical film 142 are fixedly connected by transparent optical glue to prevent relative displacement between the diffusion plate 141 and the optical film 142 of the optical assembly 14 from affecting the light output effect of the backlight module 1.

[0050] The diffusion plate 141 is used to diffuse the light emitted by the light-emitting elements 131 to balance the brightness of the entire backlight module 1. The optical film 142 can include, for example, a prism sheet, a protective sheet, or the like. The prism sheet is used to control the propagation direction of the light diffused by the diffusion plate 141, so that the propagation direction of the light is perpendicular to the liquid crystal display panel 2. The protective sheet is used to protect the prisms of the prism sheet from scratches and the like. The protective sheet can also be used to widen the viewing angle that was previously narrowed by the prism sheet.

[0051] In one example, an adjustment area 33 is provided on the side wall 32 of the front frame 3, and an adjustment mechanism 4 is provided in the adjustment area 33 to adjust the force in the first direction between the display panel 2 and the backlight module 1, thereby controlling the pressing force between the array substrate 21 and the color film substrate 22 in the display panel 2.

[0052] The plurality of adjusting areas 33 are arranged on the sidewall 32 of the front frame 3, and the plurality of elastic bows 34 are arranged in the windowed areas 332 of the adjusting areas 33, respectively. The plurality of elastic bows 34 and the plurality of fasteners are arranged between the elastic surplus areas 331 and the elastic bows 34, and are used to jointly adjust the pressing force between the array substrate 21 and the color film substrate 22.

[0053] In the embodiment, the adjusting mechanism 4 is arranged in the adjusting area 33 of the sidewall 32 of the front frame 3, and is used to adjust the acting force between the display panel 2 and the backlight module 1. The adjusting mechanism 4 is used to assist the operator to install the liquid crystal display device, so that the pressing force is controllable, and the array substrate 21 or the color film substrate 22 is prevented from being damaged due to the excessive pressing force during the installation process. In addition, the color film substrate 22 and the array substrate 21 are prevented from being separated due to the insufficient pressing force.

[0054] Figure 2 A left view of the M area in the liquid crystal display device provided by the embodiment of the present application is shown.

[0055] As shown in Figure 2 The adjusting area 33 includes the elastic surplus area 331 and the windowed area 332 which is in communication with the elastic surplus area 331. The windowed area 332 is provided with the elastic bow 34, and the elastic bow 34 is deformable along the first direction.

[0056] The adjusting mechanism 4 is a fastener, which is arranged between the elastic surplus area 331 and the elastic bow 34, and the inner contour size of the elastic surplus area 331 is greater than the outer diameter size of the fastener.

[0057] Specifically, the elastic surplus area 331 is in a circular arc shape, and the fastener can be one of a screw, a pin and the like.

[0058] In some embodiments, the windowed area 332 includes the first side a which is oppositely arranged, the elastic bow 34 includes the fixed end 341 and the free end 342, the fixed end 341 is connected with the first side a, and when the elastic bow 34 is deformed along the first direction, the free end 342 is abutted to the first side a.

[0059] The elastic bow 34 is a strip-shaped structural member which is curved along the direction towards the elastic surplus area 331.

[0060] The fastener and the elastic bow 34 are abutted at the elastic contact point. When the liquid crystal display device is installed, the force for pressing the front frame 3 along the first direction is conducted to the fastener, and the fastener and the elastic bow 34 are abutted. When the free end 342 of the elastic bow 34 is abutted to the first side a, according to the size of the pressing force along the first direction, the elastic bow 34 is deformed correspondingly, and the free end 342 thereof slides on the first side a correspondingly.

[0061] The fixed end 341 is punched to have a round corner with R≥0.2 mm for dispersing the force transmitted by the fastener to the elastic bow 34. The material of the elastic bow 34 is the same as that of the front frame 3.

[0062] In some embodiments, the backlight module 1 is a flat module, and the backlight module 1 further comprises elastic support columns 15 which are retractable along their own axes. One end of each of the elastic support columns 15 is connected to a circuit board (not shown in the figure) along its own axis, and the other end is abutted to the optical assembly 14.

[0063] Optionally, the elastic support columns 15 are elastic pins with springs arranged inside and can be retracted with the change of the mixing distance. The number of the elastic support columns 15 is multiple, and the ends of the multiple elastic support columns 15 away from the circuit board (not shown in the figure) are respectively abutted to the diffusion plate 141 to prevent the middle position of the optical assembly 14 from being concave inward due to its own gravity and affecting the light output effect. Such a backlight module 1 with multiple elastic support columns 15 is particularly suitable for liquid crystal display devices with a larger size, such as a liquid crystal display device with a size of 67 inches or more.

[0064] Since the elastic support columns 15 are arranged in the optical cavity of the backlight module 1, they will absorb the light emitted by the light emitting element 131, affecting the optical quality. The elastic support columns 15 are arranged on the circuit board (not shown in the figure) of the light emitting assembly 13, which may squeeze or even damage the circuit board. In addition, if the elastic support columns 15 fall off during use, they will make noise in the optical cavity and affect the optical display effect. Therefore, in a liquid crystal display device with a size of 32 inches or less, the elastic support columns 15 can generally be omitted.

[0065] In some embodiments, the backlight module 1 further comprises a middle frame 12 and a back plate 11, the middle frame 12 is located on the side of the back plate 11 away from the front frame 3, the back plate 11 and the middle frame 12 are respectively provided with a first through hole 111 and a second through hole 121, and the adjusting mechanism 4 penetrates the adjusting area 33, the first through hole 111 and the second through hole 121 in sequence.

[0066] Specifically, the adjusting mechanism 4 penetrates the elastic excess area 331, the first through hole 111 and the second through hole 121 in sequence.

[0067] In some embodiments, the liquid crystal display device further comprises a buffer strip 5 arranged between the display panel 2 and the front wall 31 of the front frame 3. The buffer strip 5 can buffer the force acting on the liquid crystal display device in the first direction during installation.

[0068] In the embodiment, when the liquid crystal display device is installed, the operator presses the front wall 31 of the front frame 3, and the adjusting mechanism 4, i.e., the fastener, is subjected to the force in the first direction, and the force is transmitted to the elastic bow 34. The elastic bow 34 deforms according to the force, and the free end 342 of the elastic bow 34 slides in the first side a, so that the installation pressing force is controllable, and the array substrate 21 and the color film substrate 22 are prevented from being separated due to the too small pressing force or being damaged due to the too large pressing force.

[0069] Second embodiment

[0070] Figure 3 A left view of the M area in the liquid crystal display device provided by the second embodiment of the application is shown.

[0071] As shown in Figure 3 , the second embodiment of the application provides a liquid crystal display device, which is similar to the liquid crystal display device shown in the first embodiment and Figure 1 , and the difference is that the elastic bow 34 is a strip-shaped structural member curved in a direction away from the elastic surplus area 331.

[0072] In addition, in the embodiment, the windowed area 332 includes the first side a and the second side b arranged oppositely, the elastic bow 34 includes the fixed end 341 and the free end 342, the fixed end 341 is connected with the first side a, and when the elastic bow 34 deforms in the first direction, the free end 342 abuts against the second side b.

[0073] The fixed end 341 is stamped with a round corner with R≥0.2 mm, which is used to disperse the force transmitted to the elastic bow 34 by the fastener. The material of the elastic bow 34 is the same as that of the front frame 3.

[0074] In the embodiment, a plurality of adjusting areas 33 can be arranged on the side wall 32 of the front frame 3, the elastic bow 34 is arranged in the windowed area 332 of each adjusting area 33, the fastener is arranged between the elastic surplus area 331 and the elastic bow 34, and the plurality of elastic bows 34 and the plurality of fasteners jointly adjust the pressing force between the array substrate 21 and the color film substrate 22.

[0075] In the embodiment, the initial position of the free end 342 is located at the upper part of the second side b. During the installation of the liquid crystal display device, the operator presses the front wall 31 of the front frame 3, the fastener is subjected to the force in the first direction, and the force is transmitted to the elastic bow 34 through the elastic contact point. As the pressure of the fastener on the elastic bow 34 increases, the elastic bow 34 deforms, and the free end 342 slides downward along the second side b, so as to adjust the force in the first direction, and the situation that the pressing force is too large or too small during the installation of the liquid crystal display device is avoided.

[0076] Third embodiment

[0077] Figure 4This is a left view of region M in the liquid crystal display device provided in Embodiment 3 of this application.

[0078] like Figure 4 As shown, the third embodiment of this application provides a liquid crystal display device, which, together with the second embodiment and... Figure 3 The structure of the liquid crystal display device shown is similar, except that the material of the elastic bow 34 is different from that of the front frame 3. The elastic bow 34 is made of high elastic steel, which further increases the elasticity of the elastic bow 34.

[0079] The window area 332 includes a first side a and a second side b that are arranged opposite to each other. The elastic bow 34 includes a fixed end 341 and a free end 342. The fixed end 341 is connected to the first side a, and when the elastic bow 34 deforms along the first direction, the free end 342 abuts against the second side b.

[0080] In this embodiment, the elastic bow 34 is connected to the side wall 32 by welding, slit fastening or other means to form a fixed end 341.

[0081] In this embodiment, multiple adjustment areas 33 can be provided on the side wall 32 of the front frame 3, and elastic bows 34 can be provided in the window area 332 of the adjustment area 33 respectively. Fasteners are provided between the elastic surplus area 331 and the elastic bows 34. The multiple elastic bows 34 and the multiple fasteners together adjust the pressing pressure between the array substrate 21 and the color filter substrate 22.

[0082] In this embodiment, the initial position of the free end 342 is located at the upper part of the second side b. During the installation of the liquid crystal display device, the operator presses the front wall 31 of the front frame 3, and the fastener is subjected to a force along the first direction. This force is transmitted to the elastic bow 34 through the elastic contact point. As the pressure of the fastener on the elastic bow 34 increases, the elastic bow 34 deforms, and the free end 342 slides downward along the second side b, thereby adjusting the force along the first direction. This achieves pressure control during the installation of the liquid crystal display device, avoiding damage to the array substrate 21 or color filter substrate 22 caused by excessive pressure during installation, and preventing separation of the array substrate 21 and color filter substrate 22 caused by insufficient pressure.

[0083] Fourth embodiment

[0084] Figure 5 This is a left view of region M in the liquid crystal display device provided in Embodiment 4 of this application.

[0085] like Figure 5 As shown, the fourth embodiment of this application provides a liquid crystal display device, which, together with the third embodiment and... Figure 4The liquid crystal display device structure shown is similar, except that the number of elastic bows 34 is two, and the two elastic bows 34 are symmetrically arranged relative to the center line of the windowed area 332. The material of the two elastic bows 34 is high-elasticity steel, further increasing the elasticity of the elastic bows 34.

[0086] The fastener is located on the center line of the elastic surplus area 331, and is in elastic contact with the two elastic bows 34 at the elastic contact point.

[0087] The windowed area 332 includes a first edge a and a second edge b arranged perpendicular to each other, wherein the second edge b includes two oppositely arranged edges, the elastic bow 34 includes a fixed end 341 and a free end 342, the fixed ends 341 of the two elastic bows 34 are connected to the first edge a, and when the two elastic bows 34 are deformed in the first direction, the free ends 342 of the two elastic bows 34 are respectively in abutment with the two oppositely arranged second edges b.

[0088] In this embodiment, the elastic bow 34 is connected to the side wall 32 by welding, slot fastening or other means to form the fixed end 341.

[0089] In this embodiment, a plurality of adjustment areas 33 can be arranged on the side wall 32 of the front frame 3, an elastic bow 34 is arranged in the windowed area 332 of each adjustment area 33, and a fastener is arranged between the elastic surplus area 331 and the elastic bow 34. The plurality of elastic bows 34 and the plurality of fasteners jointly adjust the pressing force between the array substrate 21 and the color film substrate 22.

[0090] In this embodiment, the initial positions of the free ends 342 of the two elastic bows 34 are respectively located at the upper portions of the two second edges b. During the installation of the liquid crystal display device, the operator presses the front wall 31 of the front frame 3, the fastener is subjected to a force in the first direction, and the force is transmitted to the two elastic bows 34 through the elastic contact point. As the pressure of the fastener on the elastic bow 34 increases, the elastic bow 34 deforms, and the free end 342 slides downward along the second edge b, thereby adjusting the force in the first direction. This realizes the adjustment of the pressing force during the installation of the liquid crystal display device, avoids the damage of the array substrate 21 or the color film substrate 22 caused by excessive pressing force during the installation of the liquid crystal display device, and avoids the separation of the array substrate 21 and the color film substrate 22 caused by insufficient pressing force.

[0091] Fifth embodiment

[0092] Figure 6 A left view of the M region in the liquid crystal display device provided by the fifth embodiment of the present application is shown.

[0093] Figure 6 As shown, the fourth embodiment of the present application provides a liquid crystal display device, which is similar to the third embodiment and Figure 4The liquid crystal display device structure shown is similar, except that the side wall 32 is further provided with a gear assembly, the gear assembly is connected with the fixed end 341 of the elastic bow 34, and the gear assembly has a plurality of gears for adjusting the deformation amount of the elastic bow 34 according to the gear.

[0094] Specifically, as shown in Figure 7 Figure 7 A cross-sectional view of the gear assembly in the liquid crystal display device provided by the embodiment five of the present application is shown. The gear assembly includes a knob 351 and a spiral spring 352. The knob 351 is arranged on the side of the side wall 32 away from the backlight module 1, and the spiral spring 352 is arranged on the side of the side wall 32 facing the backlight module 1. One end of the spiral spring 352 is connected with the knob 351, and the other end of the spiral spring 352 is connected with the fixed end 341 of the elastic bow 34. The gear assembly controls the extension length of the spiral spring 352 by the gear of the rotating knob 351, so as to adjust the deformation amount of the elastic bow 34.

[0095] The spiral spring 352 is integrally formed with the elastic bow 34, and the material of the spiral spring 352 and the elastic bow 34 is high-elastic steel.

[0096] In the embodiment, a plurality of adjustment areas 33 and gear assemblies 35 can be arranged on the side wall 32 of the front frame 3, and the adjustment areas 33 and the gear assemblies 35 correspond one by one. The elastic bows 34 are arranged in the windowed areas 332 of the adjustment areas 33, and the fasteners are arranged between the elastic surplus areas 331 and the elastic bows 34. The gear assemblies 35 adjust the deformation amount of the elastic bows 34, so as to realize the common adjustment of the pressing force between the array substrate 21 and the color film substrate 22 by the plurality of elastic bows 34 and the plurality of fasteners.

[0097] In the embodiment, the initial position of the free end 342 of the elastic bow 34 is located at the upper part of the second side b. During the installation of the liquid crystal display device, the operator presses the front wall 31 of the front frame 3, the fastener is subjected to the force in the first direction, and the force is transmitted to the elastic bow 34 through the elastic contact point. As the pressing force of the fastener on the elastic bow 34 increases, the elastic bow 34 deforms, the free end 342 slides downward along the second side b, and the pressing force in the first direction is adjusted, so as to realize the adjustment of the pressing force during the installation of the liquid crystal display device, avoid the damage of the array substrate 21 or the color film substrate 22 caused by the excessive pressing force during the installation of the liquid crystal display device, and avoid the separation of the array substrate 21 and the color film substrate 22 caused by the insufficient pressing force.

[0098] ​It can be understood that the technical solutions of the array substrate provided by the embodiments of the present application can be widely used in various liquid crystal display panels, such as TN (Twisted Nematic) display panels, IPS (In-Plane Switching) display panels, VA (Vertical Alignment) display panels, and MVA (Multi-Domain Vertical Alignment) display panels.

[0099] It should be readily understood that "on", "over", and "above" in the present application should be interpreted in the broadest manner, such that "on" means not only "directly on" but also includes the meaning of "on" with intermediate features or layers therebetween, and "over" or "above" includes not only the meaning of "over" or "above" but also the meaning of "over" or "above" without intermediate features or layers therebetween (i.e., directly on).

[0100] The term "substrate" as used herein refers to a material on which a subsequent layer of material is added. The substrate itself can be patterned. The material added on top of the substrate can be patterned or can remain unpatterned. Further, the substrate can include a wide range of materials, such as silicon, germanium, gallium arsenide, indium phosphide, etc. Alternatively, the substrate can be made of a non-conductive material, such as glass, plastic, or sapphire wafer, etc.

[0101] The term "layer" as used herein can refer to a portion of material that includes a region having a thickness. A layer can extend over an entire underlying or overlying structure, or can have a scope less than the underlying or overlying structure. Further, a layer can be a region of a continuous structure that is homogeneous or non-homogeneous and has a thickness less than the thickness of the continuous structure. For example, a layer can be between or at any pair of lateral planes between a top surface and a bottom surface of a continuous structure. A layer can extend laterally, vertically, and / or along a tapered surface. A substrate can be a layer, can include one or more layers therein, and / or can have one or more layers thereon, thereabove, and / or therebelow. A layer can include multiple layers. For example, an interconnect layer can include one or more conductor and contact layers (within which contacts, interconnect lines, and / or vias are formed) and one or more dielectric layers.

[0102] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A liquid crystal display device, comprising a backlight module, a display panel and a front frame, the display panel is located on the light emitting side of the backlight module, the front frame is arranged around the edge of the display panel and connected with the backlight module, characterized in that: the front frame comprises a front wall and a side wall connected with the front wall by bending, the side wall comprises an adjusting area; the liquid crystal display device further comprises an adjusting mechanism, the adjusting mechanism penetrates through the adjusting area and the backlight module, and is used for adjusting the acting force between the display panel and the backlight module along a first direction, the first direction is the backlight direction of the display panel; the adjusting area comprises a hollowed-out elastic surplus area and a windowed area in communication with the elastic surplus area, the windowed area is provided with an elastic bow, and the elastic bow is deformable along the first direction; the adjusting mechanism is a fastener, the fastener is arranged between the elastic surplus area and the elastic bow, and the inner contour size of the elastic surplus area is greater than the outer diameter size of the fastener. the windowed area comprises a first edge and a second edge arranged oppositely, the elastic bow comprises a fixed end and a free end, the fixed end is connected with the first edge, and when the elastic bow is deformed along the first direction, the free end abuts to the second edge.

2. The liquid crystal display device according to claim 1, wherein the elastic bow is a strip-shaped structural member curved in the direction towards the elastic surplus area.

3. The liquid crystal display device according to claim 2, wherein the elastic bow is a strip-shaped structural member curved in the direction away from the elastic surplus area.

4. The liquid crystal display device according to claim 2, wherein the side wall is further provided with a gear assembly, the gear assembly is connected with the fixed end of the elastic bow, and the gear assembly has a plurality of gears for adjusting the deformation amount of the elastic bow according to the gears.

5. The liquid crystal display device according to claim 2, wherein the gear assembly comprises a knob and a spiral spring, the knob is arranged on the side of the side wall away from the backlight module, the spiral spring is arranged on the side of the side wall towards the backlight module, one end of the spiral spring is connected with the knob, the other end of the spiral spring is connected with the fixed end of the elastic bow, and the gear assembly controls the extension length of the spiral spring by rotating the gears of the knob to adjust the deformation amount of the elastic bow.

6. The liquid crystal display device according to claim 5, wherein the number of the elastic bows is two, and the two elastic bows are symmetrically arranged relative to the middle line of the windowed area.

7. The liquid crystal display device according to any one of claims 2 to 6, wherein the backlight module further comprises a middle frame and a back plate, the middle frame is located on the side of the back plate away from the front frame, the back plate and the middle frame are respectively provided with a first through hole and a second through hole, and the adjusting mechanism penetrates through the adjusting area, the first through hole and the second through hole in sequence.

8. The liquid crystal display device according to claim 1, wherein a buffer strip is further included, and the buffer strip is arranged between the display panel and the front wall of the front frame.

9. The liquid crystal display device according to claim 8, wherein ​

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