CN216979355U

CN216979355U - Express cabinet

Info

Publication number: CN216979355U
Application number: CN202220901424.5U
Authority: CN
Inventors: 冯义勇; 刘锋; 柯庆进; 姜峰
Original assignee: Qingdao Hisense Commercial Display Co Ltd
Current assignee: Qingdao Hisense Commercial Display Co Ltd
Priority date: 2022-03-28
Filing date: 2022-04-19
Publication date: 2022-07-15
Anticipated expiration: 2032-04-19
Also published as: CN114740563B; CN217279717U; CN217133786U; CN114740563A

Abstract

The utility model provides an express cabinet. The express delivery cabinet comprises a display, the display comprises a light bar, a back plate, a rubber frame, a light guide plate, a reflecting plate, a diaphragm and a liquid crystal panel, and the back plate comprises a bottom plate and a back plate side wall which is positioned at the edge of the bottom plate and bent towards the opening direction; the reflector plate is positioned on one side of the bottom plate facing the opening; the light guide plate is positioned on one side of the reflection sheet far away from the bottom plate, and the light guide plate is positioned between the reflection sheet and the membrane; the side wall of the back plate comprises a first back plate wall provided with a light bar and a second back plate wall arranged adjacent to one end of the first back plate wall; the light guide plate includes: the light guide plate body and the extension portion are located on the light guide plate body and protrude towards the second back plate wall direction, scattering net points are arranged on the bottom surface of the light guide plate body, facing one side of the bottom plate, of the extension portion, and a scattering layer is arranged on the bottom surface of the extension portion, facing one side of the bottom plate. This express delivery cabinet sets up the scattering layer through setting up the one side bottom surface towards the bottom plate of extension, makes light carry out diffuse reflection at the extension, has increased the luminance of the light that jets out from the extension.

Description

Express cabinet

Technical Field

The utility model relates to the field of storage equipment, in particular to an express cabinet.

Background

Along with the wide application of express delivery cabinets, users put forward higher requirements on the display capacity of the express delivery cabinets. At present, express delivery cabinet includes liquid crystal display panel, light guide plate and lamp strip usually, and liquid crystal display panel's back is located to the light guide plate, and liquid crystal display panel does not have luminous function, and the lamp strip provides the light source, and the light source that the light guide plate provided the lamp strip converts even area source to for liquid crystal display panel. The light guiding effect of the light guiding plate directly affects the display effect of the liquid crystal panel.

In an actual process, after light emitted from the lamp strips is transmitted to the scattering mesh points of the light guide plate, reflected light can be diffused towards different directions and then emitted from the front surface of the light guide plate. Because the LED bulb's of lamp strip quantity is limited and the limitation that the light guide plate site set up, receive the less region of light and appear subjective dark zone, receive the more region of light and appear subjective bright zone, make subjective image quality performance relatively poor, influenced the final display effect of display of express delivery cabinet.

SUMMERY OF THE UTILITY MODEL

The present invention solves at least one of the technical problems of the related art to some extent.

Therefore, this application aims at providing an express delivery cabinet, the extension that the light guide plate body and being located the light guide plate body and protruding towards second backplate wall direction sets up the diffusion layer on the one side bottom surface of extension towards the bottom plate, and diffuse reflection takes place in diffusion layer department for light, has improved from extension ejection light's degree of consistency and luminance.

An express delivery cabinet according to this application includes: the cabinet body is provided with an opening on the side wall;

the display is fixed on the inner side of the side wall of the cabinet body and used for displaying images towards the opening; the display comprises a light bar, a back plate, a rubber frame, a light guide plate, a reflector plate, a diaphragm and a liquid crystal panel;

the back plate includes: the bottom plate is positioned on the side wall of the back plate, which is bent towards the opening direction, of the edge of the bottom plate;

the rubber frame comprises a fixing part used for being clamped with the side wall of the back panel and a bearing part which extends from the fixing part to the inside of the display and is used for supporting the display panel, and the reflecting sheet, the light guide plate and the membrane are positioned in the accommodating space between the bearing part and the bottom plate;

the reflector plate is positioned on one side of the bottom plate, which faces the opening, and is used for reflecting light rays emitted by the light bar; the light guide plate is positioned on one side of the reflecting sheet far away from the bottom plate and is positioned between the reflecting sheet and the membrane; the side wall of the back plate comprises a first back plate wall provided with a light bar and a second back plate wall arranged adjacent to one end of the first back plate wall;

the light guide plate includes: the light guide plate body and the extension that is located the light guide plate body and extrudes towards second backplate wall direction are provided with the scattering site on the bottom surface of light guide plate body towards bottom plate one side, and light takes place the diffuse reflection in scattering site department, converts even area source into, sets up the diffusion layer on the one side bottom surface of extension towards the bottom plate, and light takes place the diffuse reflection in diffusion layer department, has further improved the degree of consistency and the luminance of following extension ejection of light.

In some embodiments of the present application, an enhancement dot is further disposed on a bottom surface of a side of the extension portion facing the bottom plate, the enhancement dot is located between the scattering layer and the scattering dot, light is diffusely reflected at the enhancement dot, the reflected light is emitted in different directions, so that the light irradiated to the extension portion is converted into a uniform surface light source, and an over-dark or over-bright display image is avoided.

In some embodiments of the present application, the plurality of reinforcing dots are arranged in a row on the extension portion, so that the diffused light is emitted to the front side more uniformly and regularly.

In some embodiments of the present application, the scattering layer is disposed in the first region, the first region is a stripe, and light is diffusely reflected at the stripe-shaped scattering layer, so as to concentrate and enhance the brightness of the dark band and improve the surrounding dark band.

In some embodiments of the present application, the scattering layer is one of transparent, semi-transparent, white and light white, so that light is not absorbed by the scattering layer, and the brightness of a display screen is enhanced.

In some embodiments of the present application, the scattering layer is an adhesive layer, and the scattering layer adheres the extension portion and the bottom plate, so that the extension portion of the light guide plate is fixed on the bottom plate, and the display image fluctuation caused by the displacement of the light guide plate is avoided.

In some embodiments of the present application, the second back plate wall is provided with a first side wall extension portion extending toward the inner side of the display, and the first side wall extension portion is used for limiting one end of the extension portion away from the first back plate wall, so as to limit the light guide plate from moving toward a direction away from the first back plate wall.

In some embodiments of the application, a limiting column is disposed on the bottom plate, and the limiting column is used for limiting one end of the extending portion, which is close to the first back plate wall, so as to limit the light guide plate to move towards a direction close to the first back plate wall, thereby preventing the light guide plate from displacing and maintaining the conversion effect of the light guide plate stable.

In some embodiments of the application, other side walls of the light guide plate except the side wall facing the light bar are pasted with the reflective patches for reflecting light towards the inside of the light guide plate, and light reaching the side walls of the light guide plate pasted with the reflective patches is reflected into the light guide plate by the reflective patches, so that the brightness is enhanced.

In some embodiments of the present application, a blank region is disposed between the enhancement dots and the scattering dots, a first width of the blank region along the extending direction of the extending portion is greater than a second width, and the second width is a width obtained by multiplying a distance between any two rows of the scattering dots by three, so that the blank region can separate the enhancement dots from the scattering dots, and the brightness of the display screen is uniform.

In some embodiments of the present application, a blank region is disposed between the enhancement dots and the scattering dots, and a first width of the blank region in the extending direction of the extending portion is greater than a thickness of the light guide plate.

In some embodiments of the present application, a third width of the enhancement dots and the scattering layer in the extending direction of the extending portion is smaller than a thickness of the light guide plate, so as to avoid local over-brightness or local over-darkness caused by frequent diffuse reflection of light between the enhancement dots and the scattering dots.

In some embodiments of the present application, the scattering dots are distributed in an uneven array on the bottom surface of the light guide plate body facing the bottom plate, and the diameter of the scattering dots on the side close to the first back plate wall is smaller than that of the scattering dots on the side far away from the first back plate wall, so that the brightness of the display picture is uniform.

In some embodiments of the present application, the enhancement dots include a first enhancement dot and a second enhancement dot, a distance between the first enhancement dot and the first backplane wall is less than a distance between the second enhancement dot and the first backplane wall, and a diameter of the first enhancement dot is greater than a diameter of the second enhancement dot, so that light is more diffusely reflected at the first enhancement dot, and light is less diffusely reflected at the second enhancement dot, so that the brightness of the picture is uniform.

In some embodiments of the present application, a diameter of a first enhancement dot close to the first back panel wall among the enhancement dots is greater than a diameter of the first scattering dot, and a distance between the first enhancement dot and the first back panel wall is the same as a distance between the first scattering dot and the first back panel wall, so that light is more diffusely reflected at the first enhancement dot, brightness of a liquid crystal panel region corresponding to the extension portion is uniform, and brightness of the liquid crystal panel is uniform.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a view of the exterior of a courier cabinet according to an embodiment of the present application;

FIG. 2 is a front view of a courier cabinet according to an embodiment of the present application;

FIG. 3 is a rear view of a courier cabinet according to an embodiment of the present application;

FIG. 4 is an exploded view of a courier cabinet according to an embodiment of the present application;

FIG. 5 is a view of a back plate and a diaphragm of a courier cabinet according to an embodiment of the present application in cooperation;

FIG. 6 is an enlarged view A of FIG. 5;

fig. 7 is an enlarged view B in fig. 5;

FIG. 8 is a view of a back panel of a courier cabinet according to an embodiment of the present application;

fig. 9 is an enlarged view C in fig. 8;

figure 10 is another view of a back plate and a membrane of a courier cabinet according to an embodiment of the present application mated;

fig. 11 is an enlarged view D in fig. 10;

fig. 12 is an enlarged view E in fig. 10;

figure 13 is another view of a back panel of a courier cabinet according to an embodiment of the present application;

fig. 14 is an enlarged view F in fig. 13;

FIG. 15 is a view of a membrane of a courier cabinet according to an embodiment of the present application;

fig. 16 is an enlarged view G in fig. 15;

fig. 17 is an enlarged view L in fig. 15;

FIG. 18 is a view of the mating of the light guide plate and the back plate of a courier cabinet according to an embodiment of the present application;

fig. 19 is an enlarged view M in fig. 18;

fig. 20 is an enlarged view N in fig. 18;

figure 21 is another view of a light guide plate and a back plate of an express cabinet according to an embodiment of the present application mated;

fig. 22 is an enlarged view H in fig. 21;

fig. 23 is an enlarged view J in fig. 21;

fig. 24 is an enlarged view K in fig. 21;

figure 25 is a front view of a light guide plate and a back plate of an express cabinet according to an embodiment of the present application in cooperation;

FIG. 26 is a front view of a light guide plate of a courier cabinet according to an embodiment of the present application;

fig. 27 is an enlarged view X in fig. 26;

FIG. 28 is a schematic view of a light guide plate of a courier cabinet according to an embodiment of the present application;

FIG. 29 is a rear view of FIG. 28;

in the above figures: 100. an express delivery cabinet; 1. a display; 10. a back plate; 11. a first sidewall extension; 111. positioning the opening; 112. a bending plate; 113. a claw; 1131. a first jaw; 1132. a second jaw; 12. a second sidewall extension; 121. an extension portion; 122. a baffle plate; 1221. a first baffle plate; 12211. a first extension portion; 12212. a first barrier plate; 12213. a first baffle sidewall; 12214. bending the first side edge; 1222. a second baffle; 12221. a second extension portion; 12222. a second barrier plate; 12223. a second baffle sidewall; 12224. bending the second side edge; 13. a base plate; 131. a bottom plate body portion; 132. a recessed portion; 133. a first limit post; 134. a second limit post; 14. a back plate sidewall; 141. a first backplane wall; 142. a second backplane wall; 143. a third backplane wall; 144. a fourth backplane wall; 145. a positioning part; 15. a back plate notch; 151. a first notch; 152. a second notch; 20. a reflective sheet; 30. a light guide plate; 31. a bottom surface 32, a light-emitting surface; 33. a light guide plate side wall; 331. a first light guide plate sidewall; 332. a second light guide plate sidewall; 333. a third light guide plate sidewall; 334. a fourth light guide plate sidewall; 341. a first light guide plate notch; 342. a second light guide plate notch; 35. a light guide plate body; 36. an extension; 361. enhancing the mesh points; 3611. a first enhancement dot; 3612. a second enhancement dot; 362. a blank region; 37. scattering mesh points; 38. cutting; 381. a first cutout sidewall; 382. a second cutout sidewall; 40. a membrane; 411. a first extension plate; 412. a second extension plate 42, a main body portion; 431. a third extension plate; 432. a fourth extension plate; 4321. a first side extension plate; 4322. a second side extension plate; 50. a rubber frame; 51. a fixed part; 511. a fixing hole; 52. a bearing part; 60. a liquid crystal panel; 70. a light bar; 71. mounting a bar; 72. a terminal; 73. an LED lamp; 80 an adhesive layer; 81. a scattering coating; 90. a reflective patch; 2. a cabinet body.

Detailed Description

The utility model is described in detail below by way of exemplary embodiments. It should be understood, however, that elements, structures and features of one embodiment may be beneficially incorporated in other embodiments without further recitation.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Hereinafter, embodiments of the present application will be described in detail with reference to the accompanying drawings. When the display of the express delivery cabinet is defined to be used, one side close to a user is the front side, and one side far away from the user is the rear side. The user defines the left, right, top and bottom sides in the direction the user feels when using the display.

According to express delivery cabinet 100 of this application, including the cabinet body 2 and display 1, display 1's size is less, and the structure is simpler, low in manufacturing cost, and the manufacturing step is simple.

The cabinet body 2 includes the lateral wall of the cabinet body 2, and the lateral wall of the cabinet body 2 can be for laying the dustproof and waterproof article inside the cabinet body 2, is provided with the opening on the lateral wall of the cabinet body 2, and the opening part is located to display 1, and the user can be at the display picture of display 1 of opening part direct observation when using express delivery cabinet 100.

The display 1 is fixed in the inboard of the lateral wall of the cabinet body 2, and the display 1 is including the casing that is equipped with the screw hole, and the inboard of the lateral wall of display 1 and the cabinet body 2 is worn to establish through the screw and is carried out fixed connection in the screw hole.

The display 1 is used for displaying images towards the opening, the user realizes man-machine interaction with the express delivery cabinet 100 through the display 1, the display picture of the display 1 provides express delivery information in the express delivery cabinet 100, and the efficiency of inquiring the express delivery information by the user is improved. In some embodiments, the user can open and close the express cabinet 100 through the display 1, so that the user can operate the express cabinet 100 conveniently, the operation is intelligent, the express is stored and taken without manual assistance, and the labor cost is saved.

The display 1 includes a back plate 10, a bezel 50, a light guide plate 30, a reflective sheet 20, a film 40, and a liquid crystal panel 60. The liquid crystal panel 60 does not have a light emitting function, the liquid crystal panel 60 forms different display images by screening the emitted light, and the liquid crystal panel 60 is located on the side closest to the user in the display 1. The display 1 further includes a light bar 70 for providing a light source, the light bar 70 emits a line light source and/or a point light source, the light guide plate 30 converts the line light source and the point light source into a uniform surface light source, and the film 40 is located on one side of the light emitting surface 32 of the light guide plate 30, so that the light emitted from the light guide plate 30 can be converted more uniformly.

The back plate 10 includes a bottom plate 13 and back plate sidewalls 14 bent toward the opening at the edges of the bottom plate 13. The bottom plate 13 is a large rectangular plate, the backboard side walls 14 are formed by extending along four sides of the bottom plate 13 to the opening, and the bottom plate 13 and the backboard side walls 14 can provide mounting support and protection for the components mounted in the backboard 10. The backplane side wall 14 comprises a first backplane wall 141, a second backplane wall 142, a third backplane wall 143, and a fourth backplane wall 144. Light bar 70 is mounted on a side of first back panel wall 141 facing the center of back panel 10. The second back plate wall 142 and the third back plate wall 143 are respectively disposed adjacent to two ends of the first back plate wall 141, and the second back plate wall 142 and the third back plate wall 143 are located at the same side of the first back plate wall 141. The fourth back plate wall 144 is disposed opposite to the first back plate wall 141. The third back plate wall 143 and the second back plate wall 142 are respectively disposed adjacent to two ends of the fourth back plate wall 144, and the third back plate wall 143 and the second back plate wall 142 are located at the same side of the fourth back plate wall 144.

The bezel 50 includes a fixing portion 51 for engaging with the back panel sidewall 14 and a supporting portion 52 extending from the fixing portion 51 toward the inside of the display 1 for supporting the liquid crystal panel 60. The bearing part 52 and the back plate 10 enclose a containing space. The reflective sheet 20, the light guide plate 30, and the membrane sheet 40 are stacked in the accommodating space. In some embodiments, the carrier 52 is a strip-shaped plate structure, and the carrier 52 defines an opening of the glue frame 50 located at the center of the carrier 52. The size of the opening of the rubber frame 50 is smaller than the size of the reflection sheet 20, and also smaller than the size of the light guide plate 30 and the size of the membrane 40, so that the reflection sheet 20, the light guide plate 30 and the membrane 40 are limited on the side of the bearing part 52 facing the bottom plate 13.

The liquid crystal panel 60 is positioned on the side of the mounting portion 52 facing the opening, and the mounting portion 52 can support the liquid crystal panel 60 and display a screen by directing the liquid crystal panel 60 toward a user. The light guide plate 30 and the film 40 convert the point light source and the line light source into a uniform surface light source, which is irradiated toward the opening direction to be irradiated onto the liquid crystal panel 60.

The bottom plate 13 is provided with a reflective sheet 20, a light guide plate 30, and a film sheet 40 in this order on a side facing the opening, and the reflective sheet 20 is disposed between the light guide plate 30 and the bottom plate 13. The light guide plate 30 is positioned on a side of the reflective sheet 20 away from the bottom plate 13, and the light guide plate 30 is positioned between the reflective sheet 20 and the film sheet 40. The light bar 70 directly irradiates the light guide plate 30, the light penetrates the light guide plate 30 and irradiates the reflective sheet 20, the reflective sheet 20 reflects the light emitted from the light guide plate 30 to the bottom plate 13, and the light is reflected toward the bearing portion 52, so that the light is reflected to the light guide plate 30 and the film 40, and the display brightness and the display effect of the display 1 are improved.

In some embodiments, the reflective sheet 20 is adhered to the bottom plate 13 by gluing, so that the reflective sheet 20 is firmly connected to the bottom plate 13, and the brightness of the display screen is prevented from being changed due to the movement of the reflective sheet 20. The reflective sheet 20 can reflect light from the light bar 70, and reduce the possibility that the light irradiates the bottom plate 13 for a long time to damage the bottom plate 13.

The light guide plate 30 includes: a light guide plate body 35, and an extension portion 36 located at the light guide plate body 35 and protruding toward the second back plate wall 142.

The bottom surface 31 of the light guide plate body 35 facing the bottom plate 13 is provided with scattering dots 37, light emitted from the light bars 70 is diffused at the scattering dots 37, and the light guide plate 30 makes linear light sources or point light sources emitted from the light bars 70 diffuse and reflect to be converted into surface light sources, so that the light sources irradiated to the liquid crystal panel 60 are more uniform and softer.

The bottom surface 31 of the extension portion 36 facing the bottom plate 13 is provided with the scattering layer 81, so that light emitted from the light bar 70 can be subjected to diffuse reflection at the scattering layer 81, the light irradiated to the extension portion 36 is converted into a uniform surface light source and emitted to the liquid crystal panel 60, the light of a display picture is softer, and the viewing experience of a user is improved.

Specifically, the light guide plate 30 includes a bottom surface 31 and a light emitting surface 32. The bottom surface 31 is provided with scattering dots 37 to destroy the total reflection of light rays in the light guide plate 30, the bottom surface 31 is a side surface of the light guide plate 30 close to the reflective sheet 20, and the bottom surface 31 is provided with dots. In some embodiments, the dot may be a scattering dot 37, the scattering dot 37 is a plurality of bumps arranged in a horizontal direction and a vertical direction, the dot protrudes from the bottom surface 31 toward the bottom plate 13, and light rays are diffusely reflected when striking the scattering dot 37. The light reflected by the reflective sheet 20 is reflected onto the light guide plate 30, and the light can be diffusely reflected in multiple directions through the scattering dots 37 of the light guide plate 30, so as to destroy the total reflection of the light between the light guide plate 30 and the reflective sheet 20, thereby avoiding the uneven brightness of the display effect caused by the uneven reflection of the light in each area due to the total reflection of the light, converting the point light source or the line light source emitted by the light bar 70 into a surface light source at the light guide plate 30, and enabling the surface light source to irradiate the liquid crystal panel 60 to generate a display picture with uniform brightness, thereby improving the experience of a user for watching the display picture of the liquid crystal panel 60. The light emitting surface 32 is disposed opposite to the bottom surface 31, light rays diffusely reflected from the dots are emitted from the light emitting surface 32 to the film 40, and the film 40 further homogenizes the light rays emitted from the light guide plate 30.

In some embodiments of the present disclosure, an enhanced dot 361 is further disposed on the bottom surface 31 of the side of the extending portion 36 facing the bottom plate 13, the enhanced dot 361 is located between the scattering layer 81 and the scattering dot 37, light is diffusely reflected at the enhanced dot 361 of the extending portion 36, the reflected light is emitted in different directions, so that the light irradiated to the extending portion 36 is converted into a uniform surface light source, a subjective dark band is avoided, a degree of too dark or too bright of a display screen is reduced, and the light of the display screen is more uniform.

In some embodiments of the present disclosure, the plurality of enhancement dots 361 may enable light to be irradiated more uniformly, and the plurality of enhancement dots 361 may enhance the degree of diffuse reflection of light, so that light may be converted into a more uniform surface light source.

The plurality of enhancement dots 361 are arranged on the extension portion 36 in a line, so that the light is diffused at the plurality of enhancement dots 361 arranged in a line, the light irradiated to the extension portion 36 is diffused at the enhancement dots 361 arranged in a line, and the light diffused at the enhancement dots 361 is emitted to the front side more uniformly and regularly, so that the liquid crystal panel 60 receives a more regular uniform surface light source, and the user's impression is improved.

In some embodiments, due to the arrangement of the extension portion 36, the light emitted from the light guide plate 35 to the extension portion 36 is constrained by the extension portion 36 and is transmitted a distance to a side wall of the light guide plate, and if the scattering layer 81 and/or the enhancement dots 361 are not arranged, the light emitted from the light emitting surface 32 side by the extension portion 36 is reduced, so that more light is emitted to a side wall of the light guide plate, and the light is too concentrated at the position of the side wall of the light guide plate. After the scattering layer 81 and/or the reinforcing mesh points 361 are arranged, the situation that light rays are too concentrated at the position of the side wall of the light guide plate can be relieved.

In some embodiments, the light guide plate 30 is further provided with a notch 38 for fixing the light guide plate 30 on the same side of the extension portion 36 with respect to the main body of the light guide plate 30, and when the light is emitted from the light guide plate body 35 to the notch 38 corresponding to the fixing position of the light guide plate 30, the light is directly emitted to one light guide plate side wall.

The light effects of the differently arranged light guide plate sidewalls (provided with the reflective patches 90 or not provided with the reflective patches 90) have different effects on the area of the light guide plate body 35 in the middle position.

Due to the difference of the light transmission paths, the brightness of the liquid crystal panel 60 corresponding to the extension portion 36, the liquid crystal panel 60 corresponding to the notch 38, and the liquid crystal panel 60 corresponding to the light guide plate body 35 are not uniform, and the scattering layer 81 and/or the enhancement dots 361 are disposed to improve the brightness uniformity in the liquid crystal panel 60 region adjacent to the extension portion 36 and the liquid crystal panel 60 region adjacent to the notch 38.

In some embodiments of the present application, the scattering layer 81 is disposed in a first region, and the first region is a stripe. The first region is located at a side of the enhanced dot 361 close to the second light guide plate sidewall 332. The light is diffused at the strip-shaped scattering layer 81, so that the brightness of the dark bands is enhanced in a concentrated manner, and the condition of the peripheral dark bands is improved, the scattering layer 81 is arranged between the extension part 36 and the reflector plate 20, so that the extension part 36 can be fixedly adhered to the reflector plate 20, the light guide plate 30 is prevented from moving, the light guide effect of the light guide plate 30 is more stable, and the display device has a stable display effect.

In some embodiments of the present application, the scattering layer 81 is one of transparent, semi-transparent, white and light white, so that light is not absorbed by the scattering layer 81, and the brightness of the display screen is enhanced.

In some embodiments of the present disclosure, the scattering layer 81 is an adhesive layer, and the scattering layer 81 adheres the extension portion 36 and the bottom plate 13, so that the extension portion 36 of the light guide plate 30 is fixed on the bottom plate 13, thereby preventing the light guide plate 30 from being displaced to cause display image fluctuation. In some embodiments, the scattering layer 81 is an optical adhesive, and can adhere the bottom surface 31 of the light guide plate 30 to the bottom plate 13, so as to prevent the light guide plate 30 from displacing relative to the bottom plate 13, and diffuse reflection can occur when light is irradiated to the optical adhesive, and the light is not absorbed by the optical adhesive, thereby enhancing the brightness of the display screen.

In some embodiments of the present application, the second back panel wall 142 is provided with a first sidewall extension 11 extending toward the inside of the display 1, and the first sidewall extension 11 is used for limiting an end of the extension 36 away from the first back panel wall 141, so as to limit the light guide plate 30 from moving toward a direction away from the first back panel wall 141, prevent the light guide plate 30 from displacing, and keep the conversion effect of the light guide plate 30 stable. In some embodiments, first sidewall extension 11 includes a bending plate 112, a first jaw 1131, and a second jaw 1132. The top of the back plate sidewall 14 facing the opening side is provided with a first notch 151, the top of the back plate sidewall 14 extends towards the inside of the display 1 in the first notch 151 to form a bending plate 112, the inside of the display 1 refers to the side of the display 1 away from the user when in use, and one end of the bending plate 112 away from the back plate sidewall 14 is provided with a first claw 1131 and a second claw 1132 which are arranged at intervals and face the direction of the bottom plate 13.

In some embodiments of the present disclosure, the bottom plate 13 is provided with a limiting post for limiting an end of the extending portion 36 close to the first back plate wall 141 to limit the light guide plate 30 from moving toward a direction close to the first back plate wall 141. The extension 36 is restricted by the stopper column and the first sidewall extension 11, and defines the amount of movement of the light guide plate 30 in the left and right directions.

In some embodiments of the present application, the other side walls of the light guide plate side walls except the side wall facing the light bar 70 are pasted with the reflective patches 90 for reflecting light to the inside of the light guide plate 30. The light reaching the side wall of the light guide plate to which the reflective patch 90 is attached is reflected by the reflective patch 90 into the light guide plate 30. After the light enters the light guide plate 30, diffuse reflection occurs in the light guide plate 30, a part of reflected light can be emitted from the other side walls of the light guide plate except the side wall facing the light bar 70, when the other side walls of the light guide plate except the side wall facing the light bar 70 are pasted with the reflective patches 90, the reflective patches 90 can reflect the light emitted from the other side walls of the light guide plate except the side wall facing the light bar 70, so that the light enters the light guide plate 30 again, and is emitted from the light emitting surface 32 after being diffused again, thereby avoiding light loss, increasing the brightness of the light emitted from the light emitting surface 32, reducing dark bands, and enabling a user to see a display screen with uniform brightness.

In some embodiments of the present application, a blank region 362 is disposed between the enhancement dots 361 and the scattering dots 37, and a first width of the blank region 362 along the extending direction of the extension portion 36 is greater than a second width, which is a width obtained by multiplying a distance between any two rows of scattering dots 37 by three, so that the blank region 362 can separate the enhancement dots 361 and the scattering dots 37.

In some embodiments of the present disclosure, a blank region 362 is disposed between the enhancement dot 361 and the scattering dot 37, and a first width of the blank region 362 in the extending direction of the extension portion 36 is greater than a thickness of the light guide plate 30, so as to avoid local over-brightness caused by frequent diffuse reflection of light between the enhancement dot 361 and the scattering dot 37.

In some embodiments of the present application, a third width of the enhancing dots 361 and the scattering layer 81 in the extending direction of the extending portion 36 is smaller than a thickness of the light guide plate 30, so that the light is emitted toward the light emitting surface 32 while being diffusely reflected between the enhancing dots 361 and the scattering layer 81.

In some embodiments of the present application, the scattering dots 37 are distributed in an uneven array on the bottom surface 31 of the light guide plate body 35 on the side facing the bottom plate 13, and the diameter of the scattering dots 37 on the side close to the first back plate wall 141 is smaller than that of the scattering dots 37 on the side far from the first back plate wall 141. The side of the light guide plate 30 close to the first back plate wall 141 receives more light, the side of the light guide plate 30 far from the first back plate wall 141 receives less light, and the diameter of the scattering mesh point 37 close to the first back plate wall 141 is smaller, so that the brightness requirement of the light can be met, and over-brightness is avoided; the larger diameter of the scattering dots 37 on the side away from the first back plate wall 141 enhances the diffuse reflection, so that the brightness is increased, and the brightness of the display is uniform.

In some embodiments of the present application, the enhancement dots 361 include a first enhancement dot 3611 and a second enhancement dot 3612, a distance between the first enhancement dot 3611 and the first back panel wall 141 is smaller than a distance between the second enhancement dot 3612 and the first back panel wall 141, a diameter of the first enhancement dot 3611 is larger than a diameter of the second enhancement dot 3612, so that light is more diffusely reflected at the first enhancement dot 3611, and light is less diffusely reflected at the second enhancement dot 3612, so that the brightness of the picture is uniform.

In some embodiments of the present application, a diameter of a first enhancement dot 3611 of the enhancement dots 361 close to the first back plate wall 141 is larger than a diameter of the first scattering dot 37, and a distance between the first enhancement dot 3611 and the first back plate wall 141 is the same as a distance between the first scattering dot 37 and the first back plate wall 141, so that light is more diffusely reflected at the first enhancement dot 3611, and the brightness at the extended portion 36 is prevented from being too low.

In some embodiments, the light bar 70 is mounted on the inner side of the first back panel wall 141, and the light bar 70 is used for providing light for the display 1. At most two limiting columns are arranged on the same side of the bottom plate 13, in some embodiments, the bottom plate 13 is a quadrilateral bottom plate 13 with four corners, and two limiting columns are respectively arranged at the corners of the end part of the side of the bottom plate 13 where the light bar 70 is placed. Two limiting columns are respectively arranged at the corners of the end part of the left side of the bottom plate 13, and the side opposite to the limiting columns, namely the right side, is not provided with the limiting columns. When the light guide plate 30 is affected by light and thermally expanded, the light guide plate 30 is expanded to abut against the left side limiting column, and the left side limiting column is used to limit the light guide plate 30 to continue expanding to the left side, and simultaneously, the light guide plate 30 is caused to expand to the right side. This reduces the problem of light bar 70 being pinched.

In some embodiments of the present application, the bottom plate 13 is provided with a recessed portion 132 recessed toward a direction away from the light guide plate 30 at the position of the limiting column, so that the light guide plate 30 is conveniently limited by the limiting column.

In some embodiments of the present application, in order to prevent the light guide plate 30 from being damaged by being pressed to the back plate 10 by expanding to the right side, the inner sides of the corners formed at the adjacent positions of the third back plate wall 143 and the fourth back plate wall 144 and the inner sides of the corners formed at the adjacent positions of the second back plate wall 142 and the fourth back plate wall 144 are respectively provided with an elastic body, that is, an elastic body is provided at the corner of the end portion of the right side edge of the light guide plate 30, and the elastic body is located between the fourth back plate walls 144 of the light guide plate 30 to buffer the expansion of the light guide plate 30.

In some embodiments of the present disclosure, the light bar 70 of the display 1 is disposed on the inner side of any one of the back panel sidewalls 14, and the light bar 70 is connected to the back panel sidewall 14 to provide a light source for the display 1, typically an LED lamp is used as the light source.

In some embodiments of the present application, a stepped first light guide plate gap 341 is formed at a corner between the first light guide plate sidewall 331 and the second light guide plate sidewall 332, a stepped second light guide plate gap 342 is formed at a corner between the first light guide plate sidewall 331 and the third light guide plate sidewall 333, the bottom plate 13 includes a first limiting post 133 disposed between the first light guide plate gap 341 and the back plate sidewall 14, the bottom plate 13 further includes a second limiting post 134 disposed between the second light guide plate gap 342 and the back plate sidewall 14, the first limiting post 133 and the second limiting post 134 are used for limiting the position of the light guide plate 30, so that the light guide plate 30 is positioned between the first limiting post 133 and the second limiting post 134, the shaking amount of the light guide plate 30 during transportation is reduced, and the shaking amount of the light guide plate 30 can be limited by the first limiting post 133 and the second limiting post 134.

Specifically, a gap is formed between the first limiting column 133 and the first light guide plate notch 341, a gap is formed between the second limiting column 134 and the second light guide plate notch 342, the light guide plate 30 is expanded by heat to increase the volume, a thermal expansion reserved space is reserved in the gap, the degree of tight contact between the expanded light guide plate 30 and the limiting columns is reduced, the light guide plate 30 is broken or deformed due to unbalanced stress, the light guide plate 30 can be used for a long time without being damaged, and the degree of uneven brightness of a display picture of the display 1 caused by the damage of the light guide plate 30 is reduced.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. An express delivery cabinet, comprising:

the refrigerator comprises a cabinet body, wherein an opening is formed in the side wall of the cabinet body;

the back plate includes: the bottom plate is positioned on the side wall of the back plate, bent towards the opening direction, of the edge of the bottom plate;

the rubber frame comprises a fixing part used for being clamped with the side wall of the back panel and a bearing part which extends from the fixing part to the inside of the display and is used for supporting the display panel, and the reflecting sheet, the light guide plate and the membrane are positioned in an accommodating space between the bearing part and the bottom plate;

the reflector plate is positioned on one side, facing the opening, of the bottom plate; the light guide plate is positioned on one side of the reflection sheet far away from the bottom plate, and the light guide plate is positioned between the reflection sheet and the membrane; the side wall of the back plate comprises a first back plate wall provided with the light bar and a second back plate wall arranged adjacent to one end of the first back plate wall;

the light guide plate includes: the light guide plate comprises a light guide plate body and an extension portion located on the light guide plate body and protruding towards the second back plate wall, scattering net points are arranged on the bottom surface of the light guide plate body, facing one side of the bottom plate, of the light guide plate body, and a scattering layer is arranged on the bottom surface, facing the bottom plate, of the extension portion.

2. The cabinet of claim 1, wherein a bottom surface of the extension portion facing the bottom plate further includes a reinforcing mesh point, and the reinforcing mesh point is located between the scattering layer and the scattering mesh point.

3. The express delivery cabinet of claim 2, wherein the reinforcing mesh points are multiple and are arranged in a row on the extension portion.

4. The express delivery cabinet of claim 1, wherein the scattering layer is disposed in a first region, and the first region is strip-shaped.

5. The courier cabinet of claim 1, wherein the scattering layer is one of transparent, translucent, white, off-white.

6. The courier cabinet of claim 1, wherein the diffuser layer is an adhesive layer that bonds the extension and the base plate.

7. The cabinet of claim 1, wherein the second back panel wall is provided with a first side wall extension portion extending towards the inner side of the display, and the first side wall extension portion is used for limiting one end of the extension portion far away from the first back panel wall so as to limit the light guide plate to move towards the direction far away from the first back panel wall.

8. The cabinet of claim 1, wherein the base plate is provided with a limiting post, and the limiting post is used for limiting one end of the extending portion, which is close to the first back plate wall, so as to limit the light guide plate to move towards a direction close to the first back plate wall.

9. The express delivery cabinet of claim 1, wherein the other side walls of the light guide plate except the side wall facing the light bar are pasted with reflective patches for reflecting light towards the inside of the light guide plate.

10. The express delivery cabinet of claim 2, wherein a blank area is disposed between the reinforcing mesh points and the scattering mesh points, a first width of the blank area in the extending direction of the extending portion is greater than a second width, and the second width is a width obtained by multiplying a distance between any two rows of scattering mesh points by three.

11. The express delivery cabinet of claim 2, wherein a blank area is arranged between the reinforcing mesh points and the scattering mesh points, and a first width of the blank area in the extending direction of the extending portion is larger than the thickness of the light guide plate.

12. The cabinet of claim 2, wherein a third width of the reinforcing dots and the scattering layer in the extension direction of the extension portion is smaller than a thickness of the light guide plate.

13. The cabinet according to claim 1, wherein the scattering dots are distributed in an uneven array on a bottom surface of the light guide plate body on a side facing the bottom plate, and a diameter of the scattering dots on a side close to the first back plate wall is smaller than a diameter of the scattering dots on a side far from the first back plate wall.

14. The courier cabinet of claim 2, wherein the reinforcing dots include first reinforcing dots and second reinforcing dots, the first reinforcing dots being located a distance from the first back panel wall that is less than a diameter of the second reinforcing dots, the first reinforcing dots having a diameter that is greater than a diameter of the second reinforcing dots.

15. The courier cabinet of claim 2, wherein a diameter of a first one of the reinforcing dots that is proximate to the first back panel wall is greater than a diameter of a first scattering dot, the first reinforcing dot being spaced from the first back panel wall by the same distance as the first scattering dot.