WO2015172404A1 - 曲面液晶显示器的曲率调整结构 - Google Patents

曲面液晶显示器的曲率调整结构 Download PDF

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Publication number
WO2015172404A1
WO2015172404A1 PCT/CN2014/078671 CN2014078671W WO2015172404A1 WO 2015172404 A1 WO2015172404 A1 WO 2015172404A1 CN 2014078671 W CN2014078671 W CN 2014078671W WO 2015172404 A1 WO2015172404 A1 WO 2015172404A1
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WO
WIPO (PCT)
Prior art keywords
bracket
cooling
liquid crystal
crystal display
brackets
Prior art date
Application number
PCT/CN2014/078671
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English (en)
French (fr)
Inventor
俞刚
萧宇均
李德华
Original Assignee
深圳市华星光电技术有限公司
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Application filed by 深圳市华星光电技术有限公司 filed Critical 深圳市华星光电技术有限公司
Priority to US14/374,512 priority Critical patent/US9235078B2/en
Publication of WO2015172404A1 publication Critical patent/WO2015172404A1/zh

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/133382—Heating or cooling of liquid crystal cells other than for activation, e.g. circuits or arrangements for temperature control, stabilisation or uniform distribution over the cell
    • G02F1/133385—Heating or cooling of liquid crystal cells other than for activation, e.g. circuits or arrangements for temperature control, stabilisation or uniform distribution over the cell with cooling means, e.g. fans
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR 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
    • G06F1/1601—Constructional details related to the housing of computer displays, e.g. of CRT monitors, of flat displays
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR 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
    • G06F1/1637—Details related to the display arrangement, including those related to the mounting of the display in the housing
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR 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
    • G06F1/20—Cooling means
    • G06F1/206—Cooling means comprising thermal management
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • G02F1/133314—Back frames

Definitions

  • the present invention relates to the field of liquid crystal display, and more particularly to a curvature adjustment structure of a curved liquid crystal display. Background technique
  • Liquid crystal display (LCD, Liquid Crystal Display) has many advantages such as thin body, power saving, and no radiation, and has been widely used. Such as: LCD TV, mobile phone, personal digital assistant (PDA), digital camera, computer screen or laptop screen.
  • LCD liquid crystal display
  • PDA personal digital assistant
  • digital camera computer screen or laptop screen.
  • the liquid crystal display device generally comprises a housing, disposed within the housing and disposed on the liquid crystal panel backlight module (Backlight module) 0 works within the housing is a liquid crystal panel of the liquid crystal molecules are placed in two parallel glass substrate among two sheets of glass There are many vertical and horizontal small wires in the middle of the substrate.
  • the liquid crystal molecules are controlled to change direction by energization or not, and the light of the backlight module is refracted to produce a picture.
  • the backlight module is divided into a side-in type backlight module and a direct-type backlight module according to different incident positions of the light source.
  • the direct type backlight module is configured such that a backlight such as a CCFL (Cold Cathode Fluorescent Lamp) or an LED (Light Emitting Diode) light source is disposed behind the liquid crystal panel, and the light is uniformized by the diffusion plate to form a surface.
  • Light source is supplied to the liquid crystal Panel.
  • the side-lit backlight module has a backlight LED strip (Light bar) disposed at the edge of the back panel behind the liquid crystal panel, and the light emitted by the LED strip is from the side of the light guide plate (LGP).
  • the smooth surface enters the light guide plate, is reflected and diffused, is emitted from the light exit surface of the light guide plate, and is then supplied to the liquid crystal panel through the optical film group to form a surface light source.
  • curved liquid crystal displays can provide the best viewing effect from the edge to the edge, while ordinary liquid crystal displays are on the edge of the screen.
  • the ability to present aspects has been relatively unsatisfactory.
  • the curved LCD screen has an arc-shaped design that provides a wide panoramic image effect, providing the same visual enjoyment both in the center of the screen and around the edges, and reduces off-axis viewing when viewed at close range. Distortion.
  • the curved LCD display will allow the user to extend the viewing distance for a better viewing experience. Therefore, compared with ordinary liquid crystal displays, curved liquid crystal displays have great advantages: 1. Brand differentiation; 2. Broader viewing angle; 3. Reduce distortion in close-range viewing.
  • the implementation of the existing curved liquid crystal display mainly includes: 1. Attaching a bracket having a specific curvature to the back plate, forcing the back plate to bend into a curvature corresponding to the bracket; 2. Forming a curved surface directly on the back plate.
  • the curvature of the liquid crystal display obtained by the two methods is fixed, and cannot be adjusted according to the user's viewing requirements, so that the viewing angle is limited, and the structure is More complex, relatively high cost of invention content
  • the object of the present invention is to provide a curvature adjustment structure of a curved liquid crystal display, which can realize the convenient, rapid and continuous adjustment of the curvature of the curved liquid crystal display, so that the user can obtain different display states according to different requirements when viewing.
  • the structure is simple and easy to implement.
  • the present invention provides a curvature adjusting structure of a curved liquid crystal display, comprising: a backboard, and at least one bracket assembly fixedly mounted on the backboard; each bracket assembly includes a first bracket in contact with the backboard, and The first bracket is opposite to the second bracket disposed away from the backboard, and the cooling fin array disposed between the first and second brackets; the cooling fin array includes a plurality of cooling fins, each of the cooling fins having a heat absorbing surface And a heat dissipating surface opposite to the heat absorbing surface, wherein the heat absorbing surface and the heat dissipating surface of each of the cooling sheets are respectively attached to the first bracket and the second bracket, and the heat absorbing surface is energized by energizing the cooling sheet array
  • the heat dissipating surface affects the temperature of the first bracket and the second bracket respectively, so that the first and second brackets respectively undergo thermal expansion and contraction, thereby achieving bending deformation of the bracket assembly, so that the bracket assembly forces the
  • the curvature adjustment structure of the curved liquid crystal display further includes first and second temperature sensors respectively mounted on the first and second brackets.
  • the heat absorbing surface and the heat dissipating surface of the adjacent cooling fins of the refrigerating sheet array are oppositely disposed, so that the heat absorbing surfaces of the adjacent refrigerating sheets respectively adhere to the first and second brackets, and correspondingly the heat dissipating surfaces of the adjacent refrigerating sheets
  • the second and first brackets are respectively attached, and the cooling sheet that has all the heat absorbing surfaces attached to the first bracket is defined as a first cooling sheet unit, and the cooling sheet that has all the heat absorbing surfaces attached to the second bracket is defined as a second
  • the cooling sheet unit energizes only the first or second cooling sheet unit at a time, so that the heat absorbing surface and the heat dissipating surface respectively affect the temperature of the first bracket and the second bracket, so that the first and second brackets respectively occur Thermal expansion and contraction cause bending deformation of the stent assembly such that the s
  • the heat absorbing surface of the adjacent cooling sheet of the cooling fin array has the same orientation as the heat dissipating surface.
  • Each of the cooling sheets has a rectangular shape and is evenly spaced in sequence.
  • the cooling sheet is a thermoelectric semiconductor cooling sheet, and the heat dissipating surface and the heat absorbing surface of the plurality of refrigerating sheets are electrically connected to the same cooling sheet.
  • the bracket assembly is fixedly mounted to the backing plate by screwing, welding or bonding.
  • the materials of the first and second brackets are materials having a large coefficient of thermal expansion.
  • the number of the bracket assemblies is two, and is disposed in the horizontal direction on the upper and lower ends of the backboard.
  • the number of the bracket assemblies is two, and is disposed on the left and right sides of the backboard in a vertical direction.
  • the present invention also provides a curvature adjusting structure of a curved liquid crystal display, comprising a back plate and at least one bracket assembly fixedly mounted on the backboard; each bracket assembly includes a first bracket in contact with the backboard, and the first bracket a second bracket disposed away from the backboard and a cooling fin array disposed between the first and second brackets; the cooling fin array includes a plurality of cooling fins, each of the cooling fins having a heat absorbing surface, and a heat dissipating surface opposite to the heat absorbing surface, the heat absorbing surface and the heat dissipating surface of each of the cooling sheets are respectively attached to the first bracket and the second bracket, and the heat absorbing surface and the heat dissipating surface are respectively affected by energizing the cooling sheet array
  • the temperature of the first bracket and the second bracket causes thermal expansion and contraction of the first and second brackets respectively to achieve bending
  • each of the cooling sheets has a rectangular shape and is evenly spaced in sequence
  • bracket assembly is fixedly mounted on the back plate by screwing, welding or bonding;
  • cooling sheet is a thermoelectric semiconductor refrigeration sheet, wherein the cooling fins of the plurality of cooling sheets are electrically connected to the same cooling fins;
  • the materials of the first and second brackets are materials having a large thermal expansion coefficient.
  • the heat absorbing surface and the heat dissipating surface of the adjacent cooling sheets of the cooling sheet array are oppositely disposed from The heat absorbing surfaces of the adjacent cooling sheets are respectively attached to the first and second brackets, and the heat dissipating surfaces of the adjacent cooling sheets are respectively attached to the second and first brackets, and all the heat absorbing surfaces are attached to the first bracket.
  • the cooling sheet is defined as a first cooling sheet unit, and the cooling sheet that bonds all the heat absorbing surfaces to the second holder is defined as a second cooling sheet unit, and only the first or second cooling sheet unit is energized at a time to realize the suction.
  • the hot surface and the heat dissipating surface respectively affect the temperature of the first bracket and the second bracket, so that the first and second brackets respectively undergo thermal expansion and contraction, thereby achieving bending deformation of the bracket assembly, so that the bracket assembly forces the back panel
  • the curvature changes.
  • the heat absorbing surface of the adjacent cooling sheet of the cooling fin array has the same orientation as the heat dissipating surface.
  • the number of the bracket assemblies is two, and is disposed in the horizontal direction on the upper and lower ends of the backboard.
  • the number of the bracket assemblies is two, and is disposed on the left and right sides of the backboard in a vertical direction.
  • the cooling chip array is energized, and the power of the cooling fin array is controlled, and the heat absorbing surface and the heat dissipating surface of the cooling sheet respectively affect the temperatures of the first and second brackets, so that the first and second brackets respectively undergo thermal expansion and contraction
  • the bending deformation of the bracket assembly is realized, and the bracket assembly forces the curvature of the backboard to change, thereby realizing convenient and continuous adjustment of the curvature of the curved liquid crystal display, thereby improving the attraction of the product to the market, and the structure is simple and easy. achieve.
  • FIG. 1 is a schematic top plan view showing a backing plate of a first embodiment of a curvature adjusting structure of a curved liquid crystal display according to a first embodiment of the present invention in an unbent state;
  • FIG. 2 is a front view of a first embodiment of a curvature adjusting structure of a curved liquid crystal display of the present invention
  • FIG. 3 is a schematic cross-sectional view showing the first cooling element unit A in the first embodiment of the curvature adjusting structure of the curved liquid crystal display according to the present invention, and the backing plate is in a curved state;
  • FIG. 4 is a perspective view of the curved liquid crystal display corresponding to FIG. 3 in the first embodiment of the curvature adjusting structure of the curved liquid crystal display of the present invention
  • 5 is a schematic cross-sectional view showing the second cooling sheet unit B in a first embodiment of the curvature adjusting structure of the curved liquid crystal display according to the present invention
  • 6 is a perspective view of the curved liquid crystal display corresponding to FIG. 5 in the first embodiment of the curvature adjusting structure of the curved liquid crystal display of the present invention
  • FIG. 7 is a schematic cross-sectional plan view showing a second embodiment of a curvature adjusting structure of a curved liquid crystal display according to a second embodiment of the present invention in an unbent state;
  • FIG. 8 is a schematic top plan view showing the back plate of the third embodiment of the curvature adjusting structure of the curved liquid crystal display of the present invention in an unbent state;
  • FIG. 9 is a front elevational view showing a fourth embodiment of a curvature adjusting structure of a curved liquid crystal display of the present invention.
  • FIG. 10 is a perspective view showing a curved liquid crystal display when the first cooling sheet unit A is energized in the fourth embodiment of the curvature adjusting structure of the curved liquid crystal display of the present invention
  • Fig. 11 is a perspective view showing the curved liquid crystal display when the second refrigerant unit B is energized in the fourth embodiment of the curvature adjusting structure of the curved liquid crystal display of the present invention.
  • FIG. 1 to FIG. 6 illustrate a first embodiment of a curvature adjustment structure of a curved liquid crystal display according to the present invention.
  • the curvature adjustment structure of the curved liquid crystal display comprises a back plate 1, and a fixed installation At least one bracket assembly 3 on the backboard 1; each bracket assembly 3 includes a first bracket 31 that is in contact with the backboard 1, a second bracket 33 that is disposed away from the backplane 1 opposite to the first bracket 31, and A cooling fin array 35 between the first and second brackets 31, 33.
  • the number of the bracket assemblies 3 and the mounting position can be set and adjusted according to the size of the curved liquid crystal display and the viewing requirements of the user. In this embodiment, the number of the bracket assemblies 3 is two, and is disposed in the horizontal direction on the back.
  • the bracket assembly 3 can be fixedly mounted on the backboard 1 by screwing, welding or bonding.
  • the materials of the first and second brackets 31, 33 are materials having a large thermal expansion coefficient, and are susceptible to temperature expansion and thermal expansion and contraction.
  • the cooling fin array 35 includes a plurality of cooling fins 2, each of which has a rectangular shape and is evenly spaced in sequence.
  • Each of the cooling sheets 2 has a heat absorbing surface 22 and a heat dissipating surface 24 opposite to the heat absorbing surface 22.
  • the heat absorbing surface 22 and the heat dissipating surface 24 of each of the cooling sheets 2 are respectively attached to the first bracket 31 and the second bracket 33.
  • the heat absorbing surface 22 and the heat dissipating surface 24 of the adjacent refrigerating sheet 2 of the refrigerating sheet array 35 are oppositely disposed, so that the heat absorbing surface 22 of the adjacent refrigerating sheet 2 is respectively attached to the first and the second
  • the two brackets 31, 33 respectively correspond to the heat dissipating surfaces 24 of the adjacent cooling fins 2, respectively, to the second and first brackets 33, 31. All the heat absorbing surfaces 22 are attached to the first cooling unit 2 of the first bracket 31 to form the first cooling sheet unit A; all the heat absorbing surfaces 22 are attached to the cooling sheet 2 of the second bracket 33.
  • the second cooling sheet unit B is composed.
  • the refrigerating sheet 2 is a thermoelectric semiconductor refrigerating sheet, and the operating principle of the refrigerating sheet 2 is based on a Peltier effect, that is, when a current passes through a thermocouple, one of the nodes dissipates heat and the other node absorbs heat.
  • the plurality of heat absorbing surfaces 22 of the first cooling sheet unit A are electrically connected to the cooling sheet 2 of the first holder 31, and the plurality of heat absorbing surfaces 22 of the second cooling sheet unit B are attached to each other.
  • the cooling fins 2 of the second bracket 33 are electrically connected.
  • the plurality of refrigerating sheets 2 of the first refrigerating sheet unit A that are attached to the first holder 31 are sucked.
  • the hot surface 22 absorbs heat, so that the first bracket 31 is cooled, the temperature is lowered, and shrinkage occurs. Accordingly, the plurality of heat dissipating surfaces 24 attached to the second bracket 33 dissipate heat, so that the second bracket 33 is heated and the temperature rises.
  • the bracket assembly 3P is contracted next to the first bracket 31, and the second bracket 33 is expanded to cause a curvature toward the inner side of the backboard 1 with respect to the horizontal direction, forcing the backing plate 1 fixed to the bracket assembly 3 to simultaneously bend.
  • the curved liquid crystal display is adapted to the curvature of the back sheet 1, and is entirely curved and recessed inwardly with respect to the horizontal direction.
  • the heat absorption of the plurality of refrigerating sheets 2 attached to the second bracket 33 in the second refrigerating sheet array B is as shown in FIG.
  • the surface of the first bracket 31 is heated and warmed by the heat dissipation of the first bracket 31 by a plurality of heat dissipating surfaces 24 of the first bracket 31.
  • the degree rises and the expansion occurs; the bracket assembly 3 expands next to the first bracket 31, and the second bracket 33 contracts to generate a curvature toward the side of the backboard 1 with respect to the horizontal direction, forcing the backplane 1 fixed to the bracket assembly 3 at the same time.
  • the curved liquid crystal display is adapted to the curvature of the backing plate 1, and has a curved shape as a whole and protrudes outward with respect to the horizontal direction.
  • the curvature adjusting structure of the curved liquid crystal display of the present invention further includes first and second temperature sensors 5, 7 respectively mounted on the first and second brackets 31, 33.
  • the first and second temperature sensors 5, 7 are respectively mounted on the sides of the first and second brackets 31, 33 for acquiring the respective temperature values of the first and second brackets 31, 33.
  • the temperature of the first and second brackets 31, 33 can be controlled by controlling the power of the first or second cooling fin unit ⁇ , ,, thereby controlling the contraction amount and expansion of the first and second brackets 31, 33.
  • the amount, the curvature of the back plate 1 and the curvature of the curved liquid crystal display are finally controlled, thereby facilitating convenient, continuous and rapid adjustment of the curvature of the curved liquid crystal display. Taking FIG. 1 and FIG.
  • the specific analysis is as follows, and the first and second brackets 31 and 33 are set at an initial temperature.
  • the length of each time is, the distance between the first and second brackets 31, 33 is D, and the temperature of the first and second brackets 31, 33 is subjected to the temperature of the first-second cooling unit A after the first cooling unit unit is energized.
  • the influences become ⁇ ⁇ 2 respectively, and the thermal expansion coefficients of the first and second brackets 31, 33 are both ⁇ , and the lengths of the two brackets become ⁇ , respectively, and the corresponding radius of the first bracket 31 after bending is R, then the second bracket 33
  • the corresponding radius after bending is (R+D), based on the coefficient of thermal expansion
  • L 2 L 0 + L 0 Kx ( T 2 ⁇ T 0 )
  • the radius R of the first bracket 31 after bending is related to the temperature values of the first and second brackets 31, 33.
  • the temperature of the first and second brackets 31, 33 can be controlled by controlling the power of the first or second cooling unit, ,, ,, so that the bracket assembly 3 is in a different bending state, so that the backboard 1 can be conveniently and continuously adjusted. Curvature.
  • the speed at which the fin array 35 reaches a desired temperature value is fast, and the curvature adjustment can be quickly achieved.
  • FIG. 7 and FIG. 8 are second and third embodiments of the curvature adjusting structure of the curved liquid crystal display of the present invention, which are different from the first embodiment in that the adjacent cooling sheet 2 ′ of the cooling fin array 35 ′
  • the heat absorbing surface 22' has the same orientation as the heat dissipating surface 24'.
  • the heat absorbing surface 22' of the adjacent cooling sheet 2' is attached to the first bracket 31, and correspondingly, the heat radiating surface 24' of the adjacent cooling sheet 2' is attached.
  • the second bracket 33 All refrigeration within the array of cooling fins 35'
  • the piece 2' is electrically connected.
  • the cooling sheet array 35' is energized to achieve the bending effect of the back sheet 1 as shown in FIG.
  • the heat absorbing surface 22 of the adjacent cooling sheet 2 is attached to the second bracket 33, and correspondingly, the heat dissipating surface 24' of the adjacent refrigerating sheet 2' is attached.
  • All of the cooling sheets 2' in the array of cooling fins 35' are electrically connected. By energizing the cooling fin array 35', the bending effect of the back sheet 1 as shown in Fig. 5 can be achieved.
  • a fourth embodiment of the curvature adjusting structure of the curved liquid crystal display of the present invention is different from the first embodiment in that the number of the bracket assemblies 3 ′ is two, and is disposed in the vertical direction. The left and right sides of the backboard.
  • the curved liquid crystal display can be made curved as a whole and recessed inward with respect to the vertical direction; when the second cooling sheet of the pair of cooling fins 35"
  • the unit B When the unit B is energized, the curved liquid crystal display can be curved as a whole and protrude outward with respect to the vertical direction.
  • the working process is similar to that of the first embodiment, and will not be described here.
  • a cooling sheet array is disposed between the first and second brackets of the bracket assembly fixedly mounted on the backboard, and the cooling sheet is passed through the Peltier effect.
  • the array is energized, and the power of the cooling fin array is controlled.
  • the heat absorbing surface and the heat dissipating surface of the cooling sheet respectively affect the temperatures of the first and second brackets, so that the first and second brackets respectively Thermal expansion and contraction occur to achieve bending deformation of the bracket assembly.
  • the bracket assembly forces the curvature of the back plate to change, thereby facilitating convenient and continuous adjustment of the curvature of the curved liquid crystal display, thereby improving the attraction of the product to the market.
  • the structure is simple and easy to implement.

Abstract

一种曲面液晶显示器的曲率调整结构，包括：背板（1）、及固定安装于背板（1）上的至少一支架组件（3）；每一支架组件（3）包括与背板（1）接触的第一支架（31）、与该第一支架（31）相对设置的远离背板（1）的第二支架（33）、及设于第一与第二支架（31、33）之间的制冷片阵列（35）；制冷片阵列（35）包括数个制冷片（2），每一制冷片（2）具有吸热面（22）、及与其背对的散热面（24），每一制冷片（2）的吸热面（22）与散热面（24）分别贴合第一与第二支架（31、33），通过给制冷片阵列（35）通电，使得第一与第二支架（31、33）分别发生热胀与冷缩，实现支架组件（3）的弯曲变形，从而迫使背板（1）的曲率发生变化。

Description

曲面液晶显示器的曲率调整结构 技术领域
本发明涉及液晶显示领域，尤其涉及一种曲面液晶显示器的曲率调整 结构。 背景技术
液晶显示装置 ( LCD , Liquid Crystal Display )具有机身薄、 省电、 无 辐射等众多优点，得到了广泛的应用。 如：液晶电视、 移动电话、 个人数 字助理（ PDA )、 数字相机、 计算机屏幕或笔记本电脑屏幕等。
通常液晶显示装置包括壳体、 设于壳体内的液晶面板及设于壳体内的 背光模组 ( Backlight module ) 0 液晶面板的工作原理是在两片平行的玻璃 基板当中放置液晶分子，两片玻璃基板中间有许多垂直和水平的细小电 线，通过通电与否来控制液晶分子改变方向，将背光模组的光线折射出来 产生画面。 背光模组依照光源入射位置的不同分成侧入式背光模组与直下 式背光模组两种。 直下式背光模组是将背光源例如 CCFL(Cold Cathode Fluorescent Lamp , P月极萤光灯管)或 LED(Light Emitting Diode发光二极管) 光源设置在液晶面板后方，光线经扩散板均匀化后形成面光源提供给液晶 面板。 而侧入式背光模组是将背光源 LED灯条（ Light bar )设于液晶面板 侧后方的背板边缘处， LED灯条发出的光线从导光板 ( Light Guide Plate , LGP )一侧的入光面进入导光板，经反射和扩散后从导光板出光面射出， 再经由光学膜片组，以形成面光源提供给液晶面板。
近年来，随着液晶显示技术的发展，各大厂商陆续的推出了曲面液晶 显示器，整体而言，曲面液晶显示器从边缘到边缘都能提供最佳的观看效 果，而普通的液晶显示器在屏幕边缘方面的呈现能力一直相对不太理想。 曲面液晶显示器整片屏幕呈弧形的设计，可提供宽阔的全景影像效果，不 论是在屏幕中央还是边缘四周，都能够带来同样的视觉享受，并且在近距 离观看时还减少了离轴观看的失真度。 此外，曲面液晶显示器会让用户的 观赏距离拉长，达到更好的观赏体验。 因此，相比于普通的液晶显示器， 曲面液晶显示器有着很大的优势： 1、 品牌的差异化； 2、 更宽广的可视角 度； 3、 减少近距离观看的失真度。
现有的曲面液晶显示器的实现方式主要包括： 1、 将具有特定弧度的 支架锁附于背板，强制背板弯曲成与支架一致的弧度； 2、 直接在背板上 成型曲面结构。 然而，通过此两种方式得到的液晶显示器的曲率是固定 的，不能依据用户的观看需求进行调整，使视角受到一定的限制，且结构 较为复杂，成本相对较高 发明内容
本发明的目的在于提供一种曲面液晶显示器的曲率调整结构，通过其 能实现方便、 快速、 连续的调整曲面液晶显示器的曲率，使用户在观看 时，可以根据不同的需求，获取不同的显示状态，提高产品对巿场的吸引 力，且结构较简单，易实现。
为实现上述目的，本发明提供一种曲面液晶显示器的曲率调整结构， 包括背板、 及固定安装于背板上的至少一支架组件；每一支架组件包括与 背板接触的第一支架、 与该第一支架相对设置的远离背板的第二支架、 及 设于第一与第二支架之间的制冷片阵列；所述制冷片阵列包括数个制冷 片，每一制冷片具有吸热面、 及与该吸热面背对的散热面，所述每一制冷 片的吸热面与散热面分别贴合第一支架与第二支架，通过给制冷片阵列通 电，所述吸热面与散热面分别影响第一支架与第二支架的温度，使得所述 第一与第二支架分别发生热胀与冷缩，实现支架组件的弯曲变形，从而该 支架组件迫使所述背板的曲率发生变化。
所述曲面液晶显示器的曲率调整结构，还包括分别安装于所述第一与 第二支架上的第一与第二温度传感器。 所述制冷片阵列的相邻制冷片的吸热面及散热面的朝向相反放置，从 而相邻制冷片的吸热面分别贴合第一与第二支架，相应地相邻制冷片的散 热面分别贴合第二与第一支架，将所有吸热面贴合于第一支架的制冷片定 义为第一制冷片单元，将所有吸热面贴合于第二支架的制冷片定义为第二 制冷片单元，每次只给第一或第二制冷片单元通电，实现所述吸热面与散 热面分别影响第一支架与第二支架的温度，使得所述第一与第二支架分别 发生热胀与冷缩，实现支架组件的弯曲变形，从而该支架组件迫使所述背 板的曲率发生变化。
所述制冷片阵列的相邻制冷片的吸热面与散热面的朝向相同。
所述每一制冷片均呈矩形，依次均匀间隔设置。
所述制冷片为热电半导体制冷片，所述数个制冷片中散热面与吸热面 朝向相同的制冷片电性连接。
所述支架组件通过螺纹连接、 焊接或粘接的方式固定安装于所述背板 上。
所述第一与第二支架的材料为热膨胀系数大的材料。 所述支架组件的 数量为两个，沿水平方向设置于背板的上下两端。
所述支架组件的数量为两个，沿竖直方向设置于背板的左右两侧。 本发明还提供一种曲面液晶显示器的曲率调整结构，包括背板、 及固 定安装于背板上的至少一支架组件；每一支架组件包括与背板接触的第一 支架、 与该第一支架相对设置的远离背板的第二支架、 及设于第一与第二 支架之间的制冷片阵列；所述制冷片阵列包括数个制冷片，每一制冷片具 有吸热面、 及与该吸热面背对的散热面，所述每一制冷片的吸热面与散热 面分别贴合第一支架与第二支架，通过给制冷片阵列通电，所述吸热面与 散热面分别影响第一支架与第二支架的温度，使得所述第一与第二支架分 别发生热胀与冷缩，实现支架组件的弯曲变形，从而该支架组件迫使所述 背板的曲率发生变化；
还包括分别安装于所述第一与第二支架上的第一与第二温度传感器； 其中，所述每一制冷片均呈矩形，依次均匀间隔设置；
其中， 所述支架组件通过螺纹连接、 焊接或粘接的方式固定安装于 所述背板上；
其中，所述制冷片为热电半导体制冷片，所述数个制冷片中散热面与 吸热面朝向相同的制冷片电性连接；
其中，所述第一与第二支架的材料为热膨胀系数大的材料。
所述制冷片阵列的相邻制冷片的吸热面及散热面的朝向相反放置，从 而相邻制冷片的吸热面分别贴合第一与第二支架，相应地相邻制冷片的散 热面分别贴合第二与第一支架，将所有吸热面贴合于第一支架的制冷片定 义为第一制冷片单元，将所有吸热面贴合于第二支架的制冷片定义为第二 制冷片单元，每次只给第一或第二制冷片单元通电，实现所述吸热面与散 热面分别影响第一支架与第二支架的温度，使得所述第一与第二支架分别 发生热胀与冷缩，实现支架组件的弯曲变形，从而该支架组件迫使所述背 板的曲率发生变化。
所述制冷片阵列的相邻制冷片的吸热面与散热面的朝向相同。
所述支架组件的数量为两个，沿水平方向设置于背板的上下两端。 所述支架组件的数量为两个，沿竖直方向设置于背板的左右两侧。 本发明的有益效果：本发明的一种曲面液晶显示器的曲率调整结构， 在固定安装于背板上的支架组件的第一与第二支架之间设置制冷片阵列， 利用珀尔帖效应，通过给制冷片阵列通电，并控制制冷片阵列的功率，制 冷片的吸热面与散热面分别影响第一与第二支架的温度，使得所述第一与 第二支架分别发生热胀与冷缩，实现支架组件的弯曲变形，该支架组件迫 使所述背板的曲率发生变化，从而实现方便、 连续的调整曲面液晶显示器 的曲率，能够提高产品对巿场的吸引力，且结构较简单，易实现。 为了能更进一步了解本发明的特征以及技术内容，请参阅以下有关本 发明的详细说明与附图，然而附图仅提供参考与说明用，并非用来对本发 明加以限制。 附图说明
下面结合附图，通过对本发明的具体实施方式详细描述，将使本发明 的技术方案及其它有益效果显而易见。
附图中，
图 1 为本发明曲面液晶显示器的曲率调整结构的第一实施例的背板处 于未弯曲状态时的剖面俯视示意图；
图 2为本发明曲面液晶显示器的曲率调整结构的第一实施例的前视示 意图；
图 3为本发明曲面液晶显示器的曲率调整结构的第一实施例中第一制 冷片单元 A通电，背板处于弯曲状态时的剖面俯视示意图；
图 4为本发明曲面液晶显示器的曲率调整结构的第一实施例中曲面液 晶显示器对应图 3的立体示意图；
图 5为本发明曲面液晶显示器的曲率调整结构的第一实施例中第二制 冷片单元 B通电，背板处于弯曲状态时的剖面俯视示意图； 图 6为本发明曲面液晶显示器的曲率调整结构的第一实施中曲面液晶 显示器对应图 5的立体示意图；
图 7为本发明曲面液晶显示器的曲率调整结构的第二实施例的背板处 于未弯曲状态时的剖面俯视示意图；
图 8为本发明曲面液晶显示器的曲率调整结构的第三实施例的背板处 于未弯曲状态时的剖面俯视示意图；
图 9为本发明曲面液晶显示器的曲率调整结构的第四实施例的的前视 示意图；
图 10为本发明曲面液晶显示器的曲率调整结构的第四实施例中第一 制冷片单元 A通电时，曲面液晶显示器的立体示意图；
图 11 为本发明曲面液晶显示器的曲率调整结构的第四实施例中第二 制冷片单元 B通电时，曲面液晶显示器的立体示意图。 具体实施方式
为更进一步阐述本发明所采取的技术手段及其效果，以下结合本发明 的优选实施例及其附图进行详细描述。
请参阅图 1至图 6 ,为本发明一种曲面液晶显示器的曲率调整结构的 第一实施例。 该曲面液晶显示器的曲率调整结构包括背板 1、 及固定安装 于背板 1上的至少一支架组件 3；每一支架组件 3包括与背板 1接触的第 一支架 31、 与该第一支架 31相对设置的远离背板 1的第二支架 33、 及设 于第一与第二支架 31、 33之间的制冷片阵列 35。 所述支架组件 3的数量 及安装位置可根据曲面液晶显示器的尺寸及用户的观看需求进行设置和调 整，在本实施例中，所述支架组件 3的数量为两个，沿水平方向设置于背 板 1的上下两端。 所述支架组件 3可通过螺纹连接、 焊接或粘接的方式固 定安装于所述背板 1上。
所述第一与第二支架 31、 33 的材料为热膨胀系数大的材料，易受温 度影响而发生热胀冷缩。
所述制冷片阵列 35包括数个制冷片 2 ,每一制冷片 2均呈矩形，依次 均匀间隔设置。 每一制冷片 2具有吸热面 22、 及与该吸热面 22背对的散 热面 24。 所述每一制冷片 2的吸热面 22与散热面 24分别贴合第一支架 31与第二支架 33。 在本实施例中，所述制冷片阵列 35的相邻制冷片 2的 吸热面 22及散热面 24的朝向相反放置，从而相邻制冷片 2的吸热面 22 分别贴合第一与第二支架 31、 33 ,相应地相邻制冷片 2的散热面 24分别 贴合第二与第一支架 33、 31。 所有吸热面 22贴合于第一支架 31的制冷片 2组成第一制冷片单元 A；所有吸热面 22贴合于第二支架 33的制冷片 2 组成第二制冷片单元 B。 所述制冷片 2为热电半导体制冷片，所述制冷片 2 的工作原理基于珀尔贴效应，即当电流通过热电偶时，其中一个节点散 发热而另一个节点吸收热。 所述第一制冷片单元 A中的数个吸热面 22贴 合于第一支架 31的制冷片 2电性连接，所述第二制冷片单元 B中的数个 吸热面 22贴合于第二支架 33的制冷片 2电性连接。
如图 3所示，当所述第一制冷片单元 A通电而第二制冷片单元 B不通 电时，第一制冷片单元 A中的贴合于第一支架 31的数个制冷片 2的吸热 面 22吸收热量，使得第一支架 31受冷、 温度降低，产生收缩；相应的， 贴合于第二支架 33的数个散热面 24散发热量，使得第二支架 33受热、 温度上升，产生膨胀；支架组件 3 P逭着第一支架 31收缩、 第二支架 33膨 胀而产生相对于水平方向朝向背板 1内侧的弯曲，迫使与支架组件 3固定 的背板 1同时弯曲。 如图 4所示，曲面液晶显示器适应背板 1的弯曲，整 体呈曲面状，并相对于水平方向向内凹入。
如图 5所示，当所述第二制冷片单元 B通电而第一制冷片单元 A不通 电时，第二制冷片阵列 B中贴合于第二支架 33的数个制冷片 2的吸热面 22吸收热量，使得第二支架 33受冷、 温度降低，产生收缩；相应的，贴 合于第一支架 31的数个散热面 24散发热量，使得第一支架 31受热、 温 度上升，产生膨胀；支架组件 3 Ρ逭着第一支架 31膨胀、 第二支架 33收缩 而产生相对于水平方向朝向背板 1夕卜侧的弯曲，迫使与支架组件 3固定的 背板 1同时弯曲。 如图 6所示，曲面液晶显示器适应背板 1的弯曲，整体 呈曲面状，并相对于水平方向向外凸出。
本发明曲面液晶显示器的曲率调整结构还包括分别安装于所述第一与 第二支架 31、 33上的第一与第二温度传感器 5、 7。 所述第一与第二温度 传感器 5、 7分别安装于所述第一与第二支架 31、 33的侧面上，用于获取 所述第一与第二支架 31、 33各自的温度值。 可通过控制所述第一或第二 制冷片单元 Α、 Β的功率来控制所述第一与第二支架 31、 33 的温度，从而 控制第一与第二支架 31、 33 的收缩量与膨胀量，最终控制所述背板 1 的 曲率及曲面液晶显示器的曲率，实现对曲面液晶显示器的曲率进行方便、 连续、 快速的调节。 以图 1与图 3为例，具体分析如下，设第一、 第二支 架 31、 33在初始温度 Τ。时的长度均为 ，第一与第二支架 31、 33之间的 距离为 D ,第一制冷片单元 Α通电后，第一与第二支架 31、 33 的温度受第 —制冷片单元 A的影响分别变为 Τ Τ2 ,第一与第二支架 31、 33的热膨胀 系数均为 Κ ,二者的长度分别变为 、 ,第一支架 31弯曲后对应的半径 为 R ,则第二支架 33弯曲后对应的半径为（ R+D ) ,根据热膨胀系数的计 算公式，得到：
L!= Lo+L0xKx ( T厂 T0 )
L2= L0+L0 Kx ( T2― T0 )
再由几何分析得到：
R/ ( R+D ) = W L2
综合以上三式，求解 R得到：
R=Dx [l+K ( T厂 T。 ) ]/[Κ ( Τ2— Tj ) ]
由此可见，第一支架 31弯曲后的半径 R与第一、 第二支架 31、 33的 温度值相关。 通过控制第一或第二制冷片单元 Α、 Β 的功率即可控制第一 与第二支架 31、 33 的温度，使得支架组件 3处于不同的弯曲状态，从而 可以方便、 连续的调节背板 1 的曲率。 另外，制冷片阵列 35达到期望温 度值的速度很快，能够快速的实现曲率调节。
请参阅图 7、 图 8 ,为本发明曲面液晶显示器的曲率调整结构的第 二、 第三实施例，二者与第一实施例的区别在于，制冷片阵列 35'的相邻 制冷片 2'的吸热面 22'与散热面 24'的朝向相同。 如图 7所示，在第二实例 中，相邻制冷片 2'的吸热面 22'均贴合于第一支架 31 ,相应的，相邻制冷 片 2'的散热面 24'均贴合于第二支架 33。 该制冷片阵列 35'内的所有制冷 片 2'电性连接。 对所述制冷片阵列 35'通电，可实现如图 3所示的背板 1 的弯曲效果。
如图 8所示，在第三实施例中，相邻制冷片 2，的吸热面 22，均贴合于 第二支架 33 ,相应的，相邻制冷片 2'的散热面 24'均贴合于第一支架 31。 该制冷片阵列 35'内的所有制冷片 2'电性连接。 对所述制冷片阵列 35'通 电，可实现如图 5所示的背板 1的弯曲效果。
请参阅图 9至图 11 ,为本发明曲面液晶显示器的曲率调整结构的第四 实施例，其与第一实施例的区别在于，支架组件 3'的数量为两个，沿竖直 方向设置于背板 Γ的左右两侧。 当对制冷片阵列 35"的第一制冷片单元 A 通电时，能够实现曲面液晶显示器整体呈曲面状，并相对于竖直方向向内 凹进；当对制冷片阵列 35"的第二制冷片单元 B通电时，能够实现曲面液 晶显示器整体呈曲面状，并相对于竖直方向向外凸出，其工作过程与第一 实施例类似，此处不再螯述。
综上所述，本发明的曲面液晶显示器的曲率调整结构，在固定安装于 背板上的支架组件的第一与第二支架之间设置制冷片阵列，利用珀尔帖效 应，通过给制冷片阵列通电，并控制制冷片阵列的功率，制冷片的吸热面 与散热面分别影响第一与第二支架的温度，使得所述第一与第二支架分别 发生热胀与冷缩，实现支架组件的弯曲变形，该支架组件迫使所述背板的 曲率发生变化，从而实现方便、 连续的调整曲面液晶显示器的曲率，能够 提高产品对巿场的吸引力，且结构较简单，易实现。
以上所述，对于本领域的普通技术人员来说，可以根据本发明的技术 方案和技术构思作出其他各种相应的改变和变形，而所有这些改变和变形 都应属于本发明权利要求的保护范围。

Claims

杈 利 要 求
1、 一种曲面液晶显示器的曲率调整结构，包括背板、 及固定安装于 背板上的至少一支架组件；每一支架组件包括与背板接触的第一支架、 与 该第一支架相对设置的远离背板的第二支架、 及设于第一与第二支架之间 的制冷片阵列；所述制冷片阵列包括数个制冷片，每一制冷片具有吸热 面、 及与该吸热面背对的散热面，所述每一制冷片的吸热面与散热面分别 贴合第一支架与第二支架，通过给制冷片阵列通电，所述吸热面与散热面 分别影响第一支架与第二支架的温度，使得所述第一与第二支架分别发生 热胀与冷缩，实现支架组件的弯曲变形，从而该支架组件迫使所述背板的 曲率发生变化。
2、 如权利要求 1 所述的曲面液晶显示器的曲率调整结构，还包括分 别安装于所述第一与第二支架上的第一与第二温度传感器。
3、 如权利要求 1 所述的曲面液晶显示器的曲率调整结构，其中，所 述制冷片阵列的相邻制冷片的吸热面及散热面的朝向相反放置，从而相邻 制冷片的吸热面分别贴合第一与第二支架，相应地相邻制冷片的散热面分 别贴合第二与第一支架，将所有吸热面贴合于第一支架的制冷片定义为第 一制冷片单元，将所有吸热面贴合于第二支架的制冷片定义为第二制冷片 单元，每次只给第一或第二制冷片单元通电，实现所述吸热面与散热面分 别影响第一支架与第二支架的温度，使得所述第一与第二支架分别发生热 胀与冷缩，实现支架组件的弯曲变形，从而该支架组件迫使所述背板的曲 率发生变化。
4、 如权利要求 1 所述的曲面液晶显示器的曲率调整结构，其中，所 述制冷片阵列的相邻制冷片的吸热面与散热面的朝向相同。
5、 如权利要求 1 所述的曲面液晶显示器的曲率调整结构，其中，所 述每一制冷片均呈矩形，依次均匀间隔设置。
6、 如权利要求 1 所述的曲面液晶显示器的曲率调整结构，其中，所 述制冷片为热电半导体制冷片，所述数个制冷片中散热面与吸热面朝向相 同的制冷片电性连接。
7、 如权利要求 1所述的曲面液晶显示器的曲率调整结构，其中， 所 述支架组件通过螺纹连接、 焊接或粘接的方式固定安装于所述背板上。
8、 如权利要求 1 所述的曲面液晶显示器的曲率调整结构，其中，所 述第一与第二支架的材料为热膨胀系数大的材料。
9、 如权利要求 1 所述的曲面液晶显示器的曲率调整结构，其中，所 述支架组件的数量为两个，沿水平方向设置于背板的上下两端。
10、 如权利要求 1所述的曲面液晶显示器的曲率调整结构，其中，所 述支架组件的数量为两个，沿竖直方向设置于背板的左右两侧。
11、 一种曲面液晶显示器的曲率调整结构，包括背板、 及固定安装于 背板上的至少一支架组件；每一支架组件包括与背板接触的第一支架、 与 该第一支架相对设置的远离背板的第二支架、 及设于第一与第二支架之间 的制冷片阵列；所述制冷片阵列包括数个制冷片，每一制冷片具有吸热 面、 及与该吸热面背对的散热面，所述每一制冷片的吸热面与散热面分别 贴合第一支架与第二支架，通过给制冷片阵列通电，所述吸热面与散热面 分别影响第一支架与第二支架的温度，使得所述第一与第二支架分别发生 热胀与冷缩，实现支架组件的弯曲变形，从而该支架组件迫使所述背板的 曲率发生变化；
还包括分别安装于所述第一与第二支架上的第一与第二温度传感器； 其中，所述每一制冷片均呈矩形，依次均匀间隔设置；
其中， 所述支架组件通过螺纹连接、 焊接或粘接的方式固定安装于 所述背板上；
其中，所述制冷片为热电半导体制冷片，所述数个制冷片中散热面与 吸热面朝向相同的制冷片电性连接； 其中，所述第一与第二支架的材料为热膨胀系数大的材料。
12、 如权利要求 11 所述的曲面液晶显示器的曲率调整结构，其中， 所述制冷片阵列的相邻制冷片的吸热面及散热面的朝向相反放置，从而相 邻制冷片的吸热面分别贴合第一与第二支架，相应地相邻制冷片的散热面 分别贴合第二与第一支架，将所有吸热面贴合于第一支架的制冷片定义为 第一制冷片单元，将所有吸热面贴合于第二支架的制冷片定义为第二制冷 片单元，每次只给第一或第二制冷片单元通电，实现所述吸热面与散热面 分别影响第一支架与第二支架的温度，使得所述第一与第二支架分别发生 热胀与冷缩，实现支架组件的弯曲变形，从而该支架组件迫使所述背板的 曲率发生变化。
13、 如权利要求 11 所述的曲面液晶显示器的曲率调整结构，其中， 所述制冷片阵列的相邻制冷片的吸热面与散热面的朝向相同。
14、 如权利要求 11 所述的曲面液晶显示器的曲率调整结构，其中， 所述支架组件的数量为两个，沿水平方向设置于背板的上下两端。
15、 如权利要求 11 所述的曲面液晶显示器的曲率调整结构，其中， 所述支架组件的数量为两个，沿竖直方向设置于背板的左右两侧。
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