WO2020015705A1 - 显示屏的背板结构及交互智能平板 - Google Patents

显示屏的背板结构及交互智能平板 Download PDF

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Publication number
WO2020015705A1
WO2020015705A1 PCT/CN2019/096544 CN2019096544W WO2020015705A1 WO 2020015705 A1 WO2020015705 A1 WO 2020015705A1 CN 2019096544 W CN2019096544 W CN 2019096544W WO 2020015705 A1 WO2020015705 A1 WO 2020015705A1
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WIPO (PCT)
Prior art keywords
wall
backlight
display screen
plate
screen according
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Ceased
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PCT/CN2019/096544
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English (en)
French (fr)
Inventor
张宗韬
魏洋洋
宋高博
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Guangzhou Shiyuan Electronics Thecnology Co Ltd
Guangzhou Shirui Electronics Co Ltd
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Guangzhou Shiyuan Electronics Thecnology Co Ltd
Guangzhou Shirui Electronics Co Ltd
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Application filed by Guangzhou Shiyuan Electronics Thecnology Co Ltd, Guangzhou Shirui Electronics Co Ltd filed Critical Guangzhou Shiyuan Electronics Thecnology Co Ltd
Publication of WO2020015705A1 publication Critical patent/WO2020015705A1/zh
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    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1626—Constructional details or arrangements for portable computers with a single-body enclosure integrating a flat display, e.g. Personal Digital Assistants [PDAs]
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1628—Enclosures for carrying portable computers with peripheral devices, e.g. cases for a laptop and a printer
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements

Definitions

  • the invention relates to a smart tablet technology, in particular to a back panel structure of a display screen and an interactive smart tablet.
  • the back of the general display screen is provided with a back plate and a back case.
  • the main board, power supply board and other boards are fixed on the outside of the back board.
  • the back shell that shields the board is protruded from the back of the back board.
  • the back shell is like a small schoolbag, which is unattractive and affects the integrity of the display screen. If you design a whole back shell at the back of the back plate, you need to completely cover the back plate, which costs more.
  • At least part of the embodiments of the present invention provide a back panel structure of a display screen and an interactive smart tablet to solve the technical problems of poor display integrity and aesthetics caused by the convexity of the rear case in the related art.
  • a backplane structure for a display screen which includes a backplane and a rear shell.
  • the backplane includes a first wall, a connection wall, and a second wall.
  • One end of the connection wall is connected to the first wall.
  • the wall is connected.
  • the other end of the connecting wall is connected to the second wall.
  • the first wall, the connecting wall, and the second wall form a step shape.
  • the plane where the first wall is located is higher than the plane where the second wall is located.
  • the two walls are outside, and the rear shell is flush with the first wall.
  • the back panel is provided with a first wall and a second wall having a height difference, and the rear shell is disposed outside the second wall and the rear shell is flush with the first wall.
  • One wall is on the same plane or is basically located on the same plane, avoiding the convexity of the rear shell, making the whole machine thinner, more beautiful in appearance, and better in integrity, and does not need to increase the area of the rear shell, and the cost is lower .
  • the back panel structure of the display screen further includes a first backlight and a second backlight.
  • the first backlight is disposed inside the first wall
  • the second backlight is disposed inside the second wall.
  • the OD value of the first backlight is greater than the OD value of the second backlight.
  • the OD value of the first backlight is greater than that of the second backlight by 15 mm to 25 mm.
  • the OD value of the first backlight is 28 mm to 40 mm
  • the OD value of the second backlight is 8 m to 20 mm.
  • the first backlight is a refractive lamp.
  • the second backlight is a reflective lamp.
  • the planes where the first wall and the second wall are located are parallel to each other, and a distance between the first wall and the second wall is 15 mm to 25 mm.
  • a board and card assembly is provided in a receiving cavity surrounded by the second wall and the rear shell, and the board and card assembly is fixed on the second wall.
  • the rear shell includes a cover plate and a cover plate, one edge of the cover plate is connected to the first wall, the other edges of the cover plate are connected to one end of the cover plate, and the other end of the cover plate is in a direction close to the second wall. Extends and connects to the backplane.
  • the first wall is disposed above the back plate, and the second wall is disposed below the back plate.
  • the back plate is a flat plate, a curved back plate, or a back plate with a uniform slope.
  • the first backlight and the second backlight are bar lights, and both of them are multiple.
  • an interactive smart tablet which includes a screen assembly and a backplane structure of the above display screen.
  • the backplane is disposed on the back of the screen assembly, and the distance between the first wall and the screen assembly is greater than The distance of the second wall from the screen assembly.
  • the back plate of the interactive smart tablet is provided with a first wall and a second wall having a height difference.
  • the rear shell is disposed outside the second wall and the rear shell is flush with the first wall.
  • the convexity of the rear shell is avoided, the appearance is more beautiful, and the integrity is better, and the area of the rear shell does not need to be increased, and the cost is lower.
  • the interactive intelligent tablet is thinner and smaller, and achieves the purpose of lightness and thinness.
  • the interactive smart tablet further includes a side plate disposed around the back plate, one end of the side plate is connected to the back plate, and the other end is connected to the screen assembly.
  • FIG. 1 is a schematic diagram of a back panel structure of a display screen according to a first embodiment of the present invention
  • FIG. 2 is a schematic view of the rear case removed in FIG. 1;
  • FIG. 2 is a schematic view of the rear case removed in FIG. 1;
  • FIG. 3 is a schematic structural diagram of an interactive smart tablet (without a back shell) provided in Embodiment 1 of the present invention.
  • Back plate 110, first wall, 120, connecting wall, 130, second wall, 20, rear case, 210, cover plate, 220, sealing plate, 30, first backlight, 40, second backlight , 50, motherboard, 60, screen assembly, 70, side panel.
  • first and second in the present invention do not represent a specific quantity and order, but are only used to distinguish names.
  • this embodiment provides a backplane structure of a display screen, which includes a backplane 10 and a rear case 20.
  • the backplane 10 includes a first wall 110, a connection wall 120, and a second wall 130. One end is connected to the first wall 110, and the other end of the connection wall 120 is connected to the second wall 130.
  • the first wall 110, the connection wall 120, and the second wall 130 are stepped, and the plane where the first wall 110 is located is higher than the second wall.
  • the rear shell 20 is disposed outside the second wall 130, and the rear shell 20 is flush with the first wall 110.
  • the back plate 10 is provided with a first wall 110 and a second wall 130 having a height difference, and the rear case 20 is disposed outside the second wall 130 and the rear case 20 and the first wall 110 Flat, when viewed from the side, the rear shell 20 and the first wall 110 are on the same plane or substantially on the same plane (the rear shell 20 is also considered to be flush with the first wall 110 if it is close to the first wall 110), avoiding the rear shell 20
  • the convexity makes the whole machine thinner, more beautiful in appearance, and better in integrity, and does not need to increase the area of the rear shell 20, and the cost is lower.
  • the back panel structure of the display screen further includes a first backlight 30 and a second backlight 40.
  • the first backlight 30 is disposed inside the first wall 110, and the second backlight 40 is disposed on the second wall 130. Inside, and the OD value of the first backlight 30 is greater than the OD value of the second backlight 40.
  • the screen assembly 60 on the front side of the back plate 10 is illuminated by the first backlight 30 and the second backlight 40 inside the back plate 10, and the OD value of the first backlight 30 is set to be greater than the OD value of the second backlight 40 Even if the OD value of the first backlight 30 far from the screen assembly 60 is large, and the OD value of the second backlight 40 close to the screen assembly 60 is small, the brightness of the screen assembly 60 is uniform.
  • OD is an abbreviation for optical density.
  • the back plate 10 is used as a basis for installing the backlight and the board assembly in the product. Since the first backlight 30 and the second backlight 40 are used as the light source of the display screen, it needs to be installed on the first of the back plate 10 near the screen assembly 60. Side; the card assembly is assembled to the corresponding second side of the backplane 10. In order to ensure the uniformity of the OD values of the backlight projected to the screen assembly 60, those skilled in the art of the screen assembly 60 usually choose to keep the distance between the backlight and the display screen consistent, so the structure of the back plate 10 is usually a flat plate. In actual production, the screen assembly 60 and the board assembly are generally provided by different suppliers, and then the two are assembled. Technical personnel in the field of board assembly will not face the technology that needs to adjust the distance between the board assembly and the screen assembly 60. problem.
  • the back plate is a flat surface, and the OD value in the backlight cavity is the same fixed value.
  • the backplane is set to two planes with different heights, and the screens of different heights correspond to different backlight OD values of the cases.
  • the mixed OD values are used to achieve the display requirements of the screen components, and the back of the screen components is no longer convex
  • the package forms a whole, and the overall thickness is thinner than the traditional way.
  • the screen assembly 60 of this embodiment includes a display screen with a display function, or includes a display screen and a touch screen with both touch and display functions.
  • the first backlight 30 in this embodiment is a refractive lamp.
  • the second backlight 40 is a reflective lamp.
  • the use of a refracting lamp and a reflecting lamp is used to ensure that the screen assembly 60 located on the front side of the back plate 10 has a uniform brightness, and avoids local over-brightness and partial dark areas.
  • the first backlight 30 and the second backlight 40 are light bars, and there are multiple bars respectively.
  • the multiple first backlights 30 are evenly arranged on the first wall, and the multiple second backlights 40 are evenly arranged on the first wall. On the second wall.
  • the design concept of this embodiment is: the planes where the first wall 110 and the second wall 130 are located are parallel to each other, and the distance between the first wall 110 and the second wall 130 is 15 mm to 25 mm. Specifically, the distance between the first wall 110 and the second wall 130 in this embodiment is 20 mm. The height difference between the first wall 110 and the second wall 130 is limited to the above-mentioned range.
  • the OD value of the first backlight 30 is greater than the OD value of the second backlight 40 by 15 mm to 25 mm.
  • the OD value of the first backlight 30 in this embodiment is 20 mm greater than the OD value of the second backlight 40.
  • the OD value of the first backlight is 28 mm to 40 mm, and the OD value of the second backlight is 8 mm to 20 mm.
  • it is adapted to the difference in the OD values of the first backlight 30 and the second backlight 40, so that the brightness of each area of the entire display screen is more uniform, on the other hand, the overall thickness is smaller, and the overall volume is reduced.
  • the compensation result is the OD value of the final light output.
  • the number of backlights is not limited to two, and the backplane to which the two backlights are connected is not limited to a flat plate, but can also be a uniform and continuous curved backplane, or a backplane with a uniform slope. board.
  • a board assembly is disposed in an accommodating cavity surrounded by the second wall 130 and the rear case 20, and the board assembly is fixed on the second wall 130.
  • the board assembly is fixed on the second wall 130.
  • the board component includes one or more of a main board 50, a PC module, a power board, and a touch screen control board.
  • the board assembly includes a motherboard 50.
  • Board components can be configured according to requirements.
  • the back of the second wall 130 is provided with a plurality of copper posts for fixing the card assembly, and the fasteners are fixed on the copper posts through the card assembly using fasteners.
  • the PC module is a hardware module equipped with a Windows system.
  • the touch screen control board may be a capacitive screen control board or an electromagnetic screen control board, an infrared touch screen control board, or an optical touch screen control board.
  • the rear case 20 includes a cover plate 210 and a cover plate 220.
  • One edge of the cover plate 210 is connected to the first wall 110, and other edges of the cover plate 210 are connected to one end of the cover plate 220.
  • the other end of the plate 220 extends in a direction close to the second wall 130 and is connected to the back plate 10. That is, the rear case 20 has a concave shape with one side opened.
  • the cover plate 210 is provided with a heat dissipation hole for discharging the heat generated by the board assembly out of the accommodating cavity.
  • the first wall 110 is disposed above the back plate 10, and the second wall 130 is disposed below the back plate 10.
  • the top and bottom are based on the use of the display, and the end far from the horizontal plane is up, and vice versa.
  • the relative positions of the first wall 110 and the second wall 130 can be adjusted adaptively. For example, if the second wall 130 is provided in the middle of the first wall 110, that is, the second wall 130 is connected to the first wall 110 through the connecting wall 120 to form a step shape.
  • the rear case 20 includes a cover plate 210, and the cover 210 It is directly covered outside the second wall 130 and the cover 210 is connected with the first wall 110 around the cover 210 to form a whole.
  • this embodiment provides an interactive smart tablet, which includes a screen assembly 60 and a backplane structure of the display screen of the first embodiment.
  • the backplane 10 is disposed on the back of the screen assembly 60, and the first wall 110 is away from the screen assembly.
  • the distance of 60 is greater than the distance of the second wall 130 from the screen assembly 60.
  • the back plate 10 is provided with a first wall 110 and a second wall 130 having a height difference, and the rear shell 20 is disposed outside the second wall 130 and the rear shell 20 is flush with the first wall 110.
  • the rear shell 20 and the first wall 110 are on the same plane or substantially on the same plane (the rear shell 20 is also considered to be flush with the first wall if it is close to the first wall), so that the rear shell 20 is not convex and has an appearance It is more beautiful and more integrated, and does not need to increase the area of the rear shell 20, and the cost is lower.
  • the interactive intelligent tablet is thinner and smaller, and achieves the purpose of lightness and thinness.
  • the interactive smart tablet further includes a side plate 70 disposed around the back plate 10. One end of the side plate 70 is connected to the back plate 10 and the other end is connected to the screen assembly 60.
  • the back plate 10 is connected to the screen assembly 60 through the side plate 70 to form a closed inner cavity.
  • the first backlight 30 and the second backlight 40 are arranged inside the back plate 10, that is, the first backlight 30 and the second backlight 40. The light is emitted into the screen assembly 60 to prevent light leakage.
  • the screen assembly 60 in this embodiment includes a glass cover, a touch film, and a display screen which are arranged in a stack, and has functions of touch and display.
  • a first backlight 30 and a second backlight 40 are provided inside the back panel 10 of the interactive smart tablet.
  • the first backlight 30 is provided inside the first wall 110 and the second backlight 40 is provided inside the second wall 130.
  • the OD value of the first backlight 30 is greater than the OD value of the second backlight 40.
  • the screen assembly 60 on the front side of the back plate 10 is illuminated by the first backlight 30 and the second backlight 40 inside the back plate 10, and the OD value of the first backlight 30 is set to be greater than the OD value of the second backlight 40 Even if the OD value of the first backlight 30 far from the screen assembly 60 is large, and the OD value of the second backlight 40 close to the screen assembly 60 is small, the brightness of each area of the screen is uniform when the smart tablet is interactively displayed.
  • the back panel structure of the display screen includes a back panel and a back shell.
  • the back panel includes a first wall, a connecting wall, and a second wall.
  • One end of the connecting wall is connected to the first wall, and the other end of the connecting wall is connected to the first wall.
  • the second wall is connected, the first wall, the connecting wall, and the second wall are formed in a step shape, and the plane where the first wall is located is higher than the plane where the second wall is located.
  • the first wall is flush.
  • the back plate is provided with a first wall and a second wall having a height difference
  • the rear shell is disposed outside the second wall and the rear shell is flush with the first wall, so that the rear shell and the first wall are in the same plane when viewed from the side. It is located on the same plane or substantially on the same plane, and solves the technical problem of poor overall and beautiful appearance of the display screen caused by the convexity of the rear case in the related art.

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  • Theoretical Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • General Engineering & Computer Science (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
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Abstract

一种显示屏的背板结构及交互智能平板，显示屏的背板结构包括背板(10)及后壳(20)，背板(10)包括第一壁(110)、连接壁(120)及第二壁(130)，连接壁(120)的一端与第一壁(110)连接，连接壁(120)的另一端与第二壁(130)连接，第一壁(110)、连接壁(120)及第二壁(130)形成台阶状，且第一壁(110)所在的平面高于第二壁(130)所在的平面，后壳(20)盖设在第二壁(130)的外侧，且后壳(20)与第一壁(110)平齐。该背板结构解决了相关技术中由于后壳(20)外凸，导致显示屏的整体性和美观性较差的技术问题。

Description

显示屏的背板结构及交互智能平板
本申请要求于2018年7月18日提交中国专利局、申请号为201810791000.6、申请名称“显示屏的背板结构及交互智能平板”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及智能平板技术，特别是涉及一种显示屏的背板结构及交互智能平板。
背景技术
一般的显示屏背面设有背板及后壳，主板、电源板等板卡固定在背板的外侧，遮蔽板卡的后壳外凸于背板的后部，使得整机从侧面看有2个台阶，后壳像一个小书包一样，不美观，影响显示屏的整体性，如果在背板后部设计一个整体的后壳，需要全部覆盖背板，成本较高。
发明内容
基于此，本发明至少部分实施例提供了一种显示屏的背板结构及交互智能平板，以解决相关技术中由于后壳外凸，导致显示屏的整体性和美观性较差的技术问题。
根据本发明其中一实施例的一个方面，提供了一种显示屏的背板结构，包括背板及后壳，背板包括第一壁、连接壁及第二壁，连接壁的一端与第一壁连接，连接壁的另一端与第二壁连接，第一壁、连接壁及第二壁形成台阶状，且第一壁所在的平面高于第二壁所在的平面，后壳盖设在第二壁的外侧，且后壳与第一壁平齐。
上述显示屏的背板结构，背板设有具有高度差的第一壁与第二壁，将后壳设置在第二壁外侧且后壳与第一壁平齐，从侧面看后壳与第一壁在同一个平面上或者基本位于同一平面上，避免后壳外凸，使整机厚度更薄，外观更美观，整体性更好，而且不需要额外增大后壳的面积，成本较低。
可选地，显示屏的背板结构还包括第一背光灯及第二背光灯，第一背光灯设在第一壁的内侧，第二背光灯设在第二壁的内侧。
可选地，第一背光灯的OD值大于第二背光灯的OD值。
可选地，第一背光灯的OD值比第二背光灯的OD值大15mm～25mm。
可选地，第一背光灯的OD值为28mm～40mm，第二背光灯的OD值为8m～20mm。
可选地，第一背光灯为折射式灯。
可选地，第二背光灯为反射式灯。
可选地，第一壁与第二壁各自所在平面相互平行，其中第一壁和第二壁之间的距离为15mm～25mm。
可选地，第二壁与后壳围成的容纳腔内设有板卡组件，板卡组件固定在第二壁上。
可选地，后壳包括盖板及封板，盖板的其中一边缘与第一壁连接，盖板的其他边缘均与封板的一端连接，封板的另一端向靠近第二壁的方向延伸且与背板连接。
可选地，第一壁设置在背板的上方，第二壁设置在背板的下方。
可选地，背板为平板、弧形背板或斜度均一的背板。
可选地，第一背光灯和第二背光灯为条形灯，且均有多条。
根据本发明其中一实施例的一个方面，提供了一种交互智能平板，包括屏幕组件及上述的显示屏的背板结构，背板设置在屏幕组件的背面，第一壁距离屏幕组件的距离大于第二壁距离屏幕组件的距离。
上述交互智能平板的背板设有具有高度差的第一壁与第二壁，将后壳设置在第二壁外侧且后壳与第一壁平齐，从侧面看后壳与第一壁在同一个平面上或者基本位于同一平面上，避免后壳外凸，外观更美观，整体性更好，而且不需要额外增大后壳的面积，成本较低。相比传统的交互智能平板，该交互智能平板整机厚度更薄，体积更小，实现轻薄化的目的。
可选地，交互智能平板还包括设置在背板四周的侧板，侧板一端与背板连接，另一端与屏幕组件连接。
附图说明
图1为本发明实施例一提供的显示屏的背板结构的示意图；
图2为图1中拆掉后壳的示意图；
图3为本发明实施例一提供的的交互智能平板(无后壳)的结构示意图。
附图标记说明：
10、背板，110、第一壁，120、连接壁，130、第二壁，20、后壳，210、盖板， 220、封板，30、第一背光灯，40、第二背光灯，50、主板，60、屏幕组件，70、侧板。
具体实施方式
为使本发明的目的、技术方案及优点更加清楚明白，以下结合附图及具体实施方式，对本发明进行进一步的详细说明。应当理解的是，此处所描述的具体实施方式仅用以解释本发明，并不限定本发明的保护范围。
需要说明的是，当元件被称为“固设于”、“设置于”或“安设于”另一个元件，它可以直接在另一个元件上或者也可以存在居中的元件。当一个元件被认为是“连接”另一个元件，它可以是直接连接到另一个元件或者可能同时存在居中元件；一个元件与另一个元件固定连接的具体方式可以通过现有技术实现，在此不再赘述，优选采用螺纹连接的固定方式。
除非另有定义，本文所使用的所有的技术和科学术语与属于本发明的技术领域的技术人员通常理解的含义相同。本文中在本发明的说明书中所使用的术语只是为了描述具体的实施方式的目的，不是旨在于限制本发明。本文所使用的术语“及/或”包括一个或多个相关的所列项目的任意的和所有的组合。
本发明中所述“第一”、“第二”不代表具体的数量及顺序，仅仅是用于名称的区分。
实施例一
参照图1-3，本实施例提供一种显示屏的背板结构，包括背板10及后壳20，背板10包括第一壁110、连接壁120及第二壁130，连接壁120的一端与第一壁110连接，连接壁120的另一端与第二壁130连接，第一壁110、连接壁120及第二壁130形成台阶状，且第一壁110所在的平面高于第二壁130所在的平面，后壳20盖设在第二壁130的外侧，且后壳20与第一壁110平齐。
本实施例的显示屏的背板结构，背板10设有具有高度差的第一壁110与第二壁130，将后壳20设置在第二壁130外侧且后壳20与第一壁110平齐，从侧面看后壳20与第一壁110在同一个平面上或者基本位于同一平面上(后壳20贴紧在第一壁110上也视为两者平齐)，避免后壳20外凸，使整机厚度更薄，外观更美观，整体性更好，而且不需要额外增大后壳20的面积，成本较低。
可选地，显示屏的背板结构还包括第一背光灯30及第二背光灯40，第一背光灯30设在第一壁110的内侧，第二背光灯40设在第二壁130的内侧，且第一背光灯30 的OD值大于第二背光灯40的OD值。通过背板10内侧的第一背光灯30与第二背光灯40照亮背板10前侧的屏幕组件60，且将第一背光灯30的OD值设置为大于第二背光灯40的OD值，即使距离屏幕组件60远的第一背光灯30的OD值大，而距离屏幕组件60近的第二背光灯40的OD值小，从而使屏幕组件60各处的亮度均匀。OD是optical density(光密度)的缩写。
背板10在产品当中是作为背光灯和板卡组件的安装基础，因第一背光灯30和第二背光灯40作为显示屏的光源，所以需要设置在背板10靠近屏幕组件60的第一侧；板卡组件组装到背板10相应的第二侧。为了保证背光灯投射至屏幕组件60的OD值的均一性，屏幕组件60领域的技术人员通常选择将背光灯和显示屏的距离保持一致，因此背板10的结构通常是一平板。实际生产中，屏幕组件60和板卡组件一般由不同的供应商提供，再将两者进行组装，板卡组件领域的技术人员不会面临需要调节板卡组件距离屏幕组件60之间距离的技术问题。
传统的直下式背光设计中，背板为一个平面，背光腔体中的OD值为同一个固定值。本实施例中，将背板设置成两个高度不同的平面，且不同高度的屏幕对应案子的背光灯OD值不同，以混合OD值实现屏幕组件显示需求，且使屏幕组件背面不再有凸包，形成一个整体，整体厚度相比传统的方式更薄。
本实施例的屏幕组件60包括显示屏，具有显示功能；或者包括显示屏和触控屏，同时具有触控和显示的功能。
具体地，本实施例第一背光灯30为折射式灯。第二背光灯40为反射式灯。采用折射式灯与反射式灯配合使用，确保位于该背板10前侧的屏幕组件60亮度均匀，避免出现局部过亮，局部区域过暗的情况出现。进一步地，第一背光灯30与第二背光灯40为灯条，且分别为多条，多条第一背光灯30均匀布置在第一壁上，多条第二背光灯40均匀布置在第二壁上。
为了确保OD值的均一性，通常来说同一块背板10上的背光灯OD值存在差异在行业内是不被允许的，同时因为受限于加工精度，当背光灯OD值差异明显时，难以给出合适的解决方案通过设置不同的背光灯位置对OD值进行补偿。而本实施例的设计构思是：第一壁110与第二壁130各自所在平面相互平行，其中第一壁110与第二壁130之间的距离为15mm～25mm。具体地，本实施例第一壁110与第二壁130之间的距离为20mm。将第一壁110与第二壁130的高度差限定在上述范围内，其中第一背光灯30的OD值比第二背光灯40的OD值大15mm～25mm。具体地，本实施例第一背光灯30的OD值比第二背光灯40的OD值大20mm。第一背光灯的OD值 为28mm～40mm，第二背光灯的OD值为8mm～20mm。一方面适应第一背光灯30与第二背光灯40OD值的差异，使整个显示屏各区域亮度更均匀，另一方面使整体的厚度较小，减小整体的体积。即通过设置OD值不同的两组背光灯(即第一背光灯30和第二背光灯40)，并将两组背光灯设置为相对显示面板的距离不同，使得补偿结果为最终出光的OD值均一；作为一种代替，背光灯的组数不限于是两组，两组背光灯所连接的背板不限于是平板，还可以是均匀连续的弧形背板，或者是斜度均一的背板。
参照图1，第二壁130与后壳20围成的容纳腔内设有板卡组件，板卡组件固定在第二壁130上。安装时，先将板卡组件固定在低于第一壁110的第二壁130上，再将后壳20罩在第二壁130外，使板卡组件位于容纳腔内，隔绝板卡组件与外界，便于实现防水防潮等功能。
板卡组件包括主板50、PC模块、电源板及触摸屏控制板中的一种或者多种。参照图1，本实施例中，板卡组件包括主板50。板卡组件可根据需求配置。进一步地，第二壁130的背面设置有多个用于固定板卡组件的铜柱，采用紧固件穿过板卡组件将其固定在铜柱上。PC模块为装有Windows系统的硬件模块，触摸屏控制板可以是电容屏控制板或者电磁屏控制板、红外触控屏控制板或光学触控屏控制板等。
参照图1，可选地，后壳20包括盖板210及封板220，盖板210的其中一边缘与第一壁110连接，盖板210的其他边缘均与封板220的一端连接，封板220的另一端向靠近第二壁130的方向延伸且与背板10连接。即后壳20为一侧开口的内凹状，盖板210上开设有散热孔，用于将板卡组件产生的热量排出容纳腔。
参照图3，可选地，本实施例第一壁110设置在背板10的上方，第二壁130设置在背板10的下方。上方与下方是以显示屏使用状态时为参照，远离水平面的一端为上，反之为下。当然，根据需求，第一壁110与第二壁130的相对位置可做适应性调整。如将第二壁130设置在第一壁110中部，即第二壁130四周均通过连接壁120与第一壁110连接形成台阶状，此时，后壳20包括盖板210，通过盖板210直接盖在第二壁130外且盖板210四周与第一壁110连接，形成一个整体。
实施例二
参照图1-3，本实施例提供一种交互智能平板，包括屏幕组件60及实施例一的显示屏的背板结构，背板10设置在屏幕组件60的背面，第一壁110距离屏幕组件60的距离大于第二壁130距离屏幕组件60的距离。
该实施例的交互智能平板，背板10设有具有高度差的第一壁110与第二壁130， 将后壳20设置在第二壁130外侧且后壳20与第一壁110平齐，从侧面看后壳20与第一壁110在同一个平面上或者基本位于同一平面上(后壳20贴紧在第一壁上也视为两者平齐)，避免后壳20外凸，外观更美观，整体性更好，而且不需要额外增大后壳20的面积，成本较低。相比传统的交互智能平板，该交互智能平板整机厚度更薄，体积更小，实现轻薄化的目的。
交互智能平板还包括设置在背板10四周的侧板70，侧板70一端与背板10连接，另一端与屏幕组件60连接。通过侧板70将背板10与屏幕组件60连接，形成封闭的内腔，第一背光灯30与第二背光灯40布置在背板10内侧，即第一背光灯30与第二背光灯40设置在内腔内，发出的光线射向屏幕组件60，避免出现漏光的现象。
本实施例屏幕组件60包括层叠设置的玻璃盖板、触控膜及显示屏，具有触控和显示的功能。
该交互智能平板的背板10内侧设有第一背光灯30与第二背光灯40，第一背光灯30设在第一壁110的内侧，第二背光灯40设在第二壁130的内侧，且第一背光灯30的OD值大于第二背光灯40的OD值。通过背板10内侧的第一背光灯30与第二背光灯40照亮背板10前侧的屏幕组件60，且将第一背光灯30的OD值设置为大于第二背光灯40的OD值，即使距离屏幕组件60远的第一背光灯30的OD值大，而距离屏幕组件60近的第二背光灯40的OD值小，从而使交互智能平板显示时屏幕的各区域亮度均匀。
以上实施例的各技术特征可以进行任意的组合，为使描述简洁，未对上述实施例中的各个技术特征所有可能的组合都进行描述，然而，只要这些技术特征的组合不存在矛盾，都应当认为是本说明书记载的范围。
以上实施例仅表达了本发明的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对发明专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本发明构思的前提下，还可以做出若干变形和改进，这些都属于本发明的保护范围。因此，本发明专利的保护范围应以所附权利要求为准。
工业实用性
本发明实施例提供的方案可应用于智能终端设备。在本发明实施例中，显示屏的背板结构包括背板及后壳，背板包括第一壁、连接壁及第二壁，连接壁的一端与第一壁连接，连接壁的另一端与第二壁连接，第一壁、连接壁及第二壁形成台阶状，且第一壁所在的平面高于第二壁所在的平面，后壳盖设在第二壁的外侧，且后壳与第一壁 平齐。由于背板设有具有高度差的第一壁与第二壁，将后壳设置在第二壁外侧且后壳与第一壁平齐，从而在侧面看后壳与第一壁在同一个平面上或者基本位于同一平面上，解决了相关技术中由于后壳外凸，导致显示屏的整体性和美观性较差的技术问题。

Claims (15)

  1. 一种显示屏的背板结构，包括背板(10)及后壳(20)，所述背板(10)包括第一壁(110)、连接壁(120)及第二壁(130)，所述连接壁(120)的一端与第一壁(110)连接，所述连接壁(120)的另一端与第二壁(130)连接，所述第一壁(110)、连接壁(120)及第二壁(130)形成台阶状，且第一壁(110)所在的平面高于第二壁(130)所在的平面，所述后壳(20)盖设在所述第二壁(130)的外侧，且后壳(20)与所述第一壁(110)平齐。
  2. 根据权利要求1所述显示屏的背板结构，其中，还包括第一背光灯(30)及第二背光灯(40)，所述第一背光灯(30)设置在第一壁(110)的内侧，所述第二背光灯设置在第二壁(130)的内侧。
  3. 根据权利要求2所述显示屏的背板结构，其中，所述第一背光灯(30)的OD值大于所述第二背光灯(40)的OD值。
  4. 根据权利要求2所述显示屏的背板结构，其中，所述第一背光灯(30)的OD值比所述第二背光灯(40)的OD值大15mm～25mm。
  5. 根据权利要求2所述显示屏的背板结构，其中，所述第一背光灯(30)的OD值为28mm～40mm，所述第二背光灯(40)的OD值为8mm～20mm。
  6. 根据权利要求2所述显示屏的背板结构，其中，所述第一背光灯(30)为折射式灯。
  7. 根据权利要求2所述显示屏的背板结构，其中，所述第二背光灯(40)为反射式灯。
  8. 根据权利要求1所述显示屏的背板结构，其中，所述第一壁(110)与所述第二壁(130)各自所在平面相互平行，其中所述第一壁(110)和所述第二壁(130)之间的距离为15mm～25mm。
  9. 根据权利要求1所述显示屏的背板结构，其中，所述第二壁(130)与后壳(20)围成的容纳腔内设置有板卡组件，所述板卡组件固定在第二壁(130)上。
  10. 根据权利要求1所述显示屏的背板结构，其中，所述后壳(20)包括盖板(210) 及封板(220)，所述盖板(210)的其中一边缘与第一壁(110)连接，所述盖板(210)的其他边缘均与所述封板(220)的一端连接，所述封板(220)的另一端向靠近第二壁(130)的方向延伸且与所述背板(10)连接。
  11. 根据权利要求1所述显示屏的背板结构，其中，所述第一壁(110)设置在背板(10)的上方，所述第二壁(130)设置在背板(10)的下方。
  12. 根据权利要求1所述显示屏的背板结构，其中，所述背板(10)为平板、弧形背板或斜度均一的背板。
  13. 根据权利要求2所述显示屏的背板结构，其中，所述第一背光灯(30)和所述第二背光灯(40)为条形灯，且均有多条。
  14. 一种交互智能平板，包括屏幕组件(60)及权利要求1-13任一项所述的显示屏的背板结构，所述背板(10)设置在所述屏幕组件(60)的背面，所述第一壁(110)距离屏幕组件(60)的距离大于第二壁(130)距离屏幕组件(60)的距离。
  15. 根据权利要求14所述的交互智能平板，其中，还包括设置在背板(10)四周的侧板(70)，所述侧板(70)一端与背板(10)连接，另一端与所述屏幕组件(60)连接。
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