WO2022083303A1 - 一种显示模组及车载显示模组 - Google Patents

一种显示模组及车载显示模组 Download PDF

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Publication number
WO2022083303A1
WO2022083303A1 PCT/CN2021/115918 CN2021115918W WO2022083303A1 WO 2022083303 A1 WO2022083303 A1 WO 2022083303A1 CN 2021115918 W CN2021115918 W CN 2021115918W WO 2022083303 A1 WO2022083303 A1 WO 2022083303A1
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WO
WIPO (PCT)
Prior art keywords
frame
sub
display module
flange
diaphragm assembly
Prior art date
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PCT/CN2021/115918
Other languages
English (en)
French (fr)
Inventor
张强
许海峰
董慧
Original Assignee
京东方科技集团股份有限公司
合肥鑫晟光电科技有限公司
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Application filed by 京东方科技集团股份有限公司, 合肥鑫晟光电科技有限公司 filed Critical 京东方科技集团股份有限公司
Priority to US17/789,033 priority Critical patent/US20230039801A1/en
Publication of WO2022083303A1 publication Critical patent/WO2022083303A1/zh

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    • 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
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • 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
    • G02F1/133317—Intermediate frames, e.g. between backlight housing and front frame
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • 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 invention relates to the field of display technology, in particular to a display module and a vehicle-mounted display module.
  • a display module generally includes a middle frame 2, a backplane 3, a backlight source and a diaphragm assembly 6, wherein the middle frame 2 includes a frame body and a frame formed on the frame body for supporting The support portion 21 of the display panel 8 .
  • the back plate 3 includes a base plate closed at the bottom opening of the middle frame 2 , and a flange 33 formed at the edge of the base plate and located inside the middle frame. The flange 33 is in contact with the support portion 21 .
  • An expansion gap is reserved between the diaphragm assembly 6 and the flange 33 of the back plate 3 . Since the thickness of the flanges 33 and the like of the back plate 3 needs to meet certain requirements, the width of the frame of the display module cannot be further reduced under the existing circumstances.
  • the present invention provides a display module and a vehicle-mounted display module, which are used to improve the problem in the prior art that the width of the frame of the display module cannot be further reduced.
  • the present invention provides the following technical solutions:
  • a display module comprising: a display panel, a middle frame, a diaphragm assembly, a backlight source and a backplane, the backplane is blocked at an opening at the bottom of the middle frame, the diaphragm assembly and the backlight
  • the sources are all arranged in the accommodating cavity formed by the middle frame and the back plate;
  • the middle frame includes a plurality of sub-frames connected end to end, and each of the sub-frames includes a main body and a support part arranged on the main body; the support part extends into the accommodating cavity and forms with the main body T-shaped structure; the support part has a support surface for supporting the display panel, and the display panel is arranged on the support surface;
  • the backplane includes a base plate that is sealed at the bottom opening of the middle frame and a flange formed at the edge of the base plate and located inside the middle frame, the flange and the sub-frame being in one-to-one correspondence;
  • the multiple sub-frames of the middle frame include at least one first sub-frame, and a portion of the body of each of the first sub-frames facing away from the support surface is formed with a raised portion extending into the accommodating cavity.
  • the side of the raised portion facing away from the support portion is in contact with the corresponding side of the flange facing the support portion, and in the thickness direction of the flange, the positive position of the raised portion on the substrate is The projection does not completely cover the orthographic projection of the corresponding flange on the substrate;
  • the backlight source and the diaphragm assembly are sequentially arranged on the substrate, and along the thickness direction of the flange, an expansion gap is reserved between the protrusion and the diaphragm assembly.
  • the part of the main body of the first sub-frame of the middle frame away from the support surface is provided with a raised portion extending into the accommodating cavity, so that the flange of the back plate with limited thickness is staggered from the diaphragm assembly.
  • the bulge is opposite to the diaphragm assembly, and an expansion gap is reserved between the bulge and the diaphragm assembly, and the expansion-limited boundary is transferred from the inside of the flange to the bulge of the first sub-frame; while the thickness of the flange is changed.
  • the orthographic projection of the protruding portion on the substrate does not completely cover the orthographic projection of the corresponding flange on the substrate, so that under the condition that other conditions remain unchanged, the body and diaphragm assembly of the sub-frame provided with the protruding portion The distance between them is reduced, and the total width of the corresponding frame of the display module is further reduced compared with the prior art, which can better meet people's needs for ultra-narrow frame display modules, and has the feasibility of mass production, which can improve the product quality.
  • Competitiveness is possible to be used to improve the product quality.
  • the side of the raised portion facing away from the support portion is in contact with the side of the corresponding flange facing the support portion, which is beneficial to ensure that there are no functional problems in the vibration drop test and the reliability test. Therefore, Mass production is more feasible.
  • the size of the overlapping area of the orthographic projection of the protruding portion on the substrate and the corresponding orthographic projection of the flange on the substrate in the thickness direction of the flange is greater than or equal to 0.3 mm .
  • the thickness of the flange is between 0.8 mm and 1.2 mm, and the raised portion is away from the corresponding
  • the dimension in the direction of the body of the sub-frame is greater than or equal to 0.5mm.
  • the diaphragm assembly is located between the support portion and the flange, and the diaphragm assembly faces away from the surface of the support portion There is a gap with the surface of the flange facing the support portion.
  • the plurality of sub-frames included in the middle frame includes at least one second sub-frame, and the second sub-frame is not provided with the raised portion; the support portion of each second sub-frame is away from the support One side of the surface is in contact with the corresponding side of the flange facing the support portion, and along the thickness direction of the flange, the expansion gap is reserved between the flange and the diaphragm assembly.
  • the backlight source includes a light guide plate and a light bar disposed on the light incident side of the light guide plate, and among the plurality of sub-frames, the light bar is closest to the light bar and extends along the length direction of the light bar.
  • the sub-frame is the second sub-frame.
  • the middle frame includes four subframes connected end to end, wherein the subframe corresponding to the bottom edge of the display panel is the bottom frame, and the two subframes adjacent to the bottom frame in the middle frame is the first sub-frame.
  • the middle frame includes four subframes connected end to end, wherein the subframe corresponding to the bottom edge of the display panel is the bottom frame, and the three subframes in the middle frame except the bottom frame are: the first sub-frame.
  • the middle frame is a rectangular frame
  • the length direction of the diaphragm assembly is parallel to the length direction of the bottom frame
  • the width direction of the diaphragm assembly is perpendicular to the length direction of the bottom frame
  • the value of the expansion gap between the protrusions of the two first sub-frames adjacent to the bottom frame and the diaphragm assembly is greater than or equal to 0.002 times the length of the diaphragm assembly at room temperature
  • the value of the expansion gap between the raised portion of the first sub-frame opposite the bottom frame and the diaphragm assembly is greater than or equal to 0.004 times the width of the diaphragm assembly at room temperature.
  • the distance between the support portion and the effective display area of the display module is greater than or equal to 0.8 mm;
  • the size of the orthographic projection of the support portion on the diaphragm assembly in the thickness direction of the flange at room temperature is greater than or equal to 12.3 inches. equal to 1.2mm; when the length of the diagonal of the effective display area of the display module is greater than 12.3 inches, the orthographic projection of the support portion on the diaphragm assembly at room temperature is in the thickness direction of the flange The size is greater than or equal to 1.5mm.
  • the encapsulation tape is coated on the outer surface of the middle frame and attached to the edge of the display panel, and the thickness of the encapsulation tape is between 0.05mm and 0.1mm;
  • the thickness of the body is between 0.7 mm and 1.2 mm.
  • the gap between the body and the corresponding flange is 0.1 mm.
  • the length of the diagonal of the effective display area of the display module is 10.25 inches
  • the size of the protrusion in the direction away from the body of the corresponding sub-frame is 0.55mm
  • the protrusion is 0.55 mm.
  • the dimension of the rising portion in the direction perpendicular to the support portion is 1.16mm
  • the thickness of the flange is 0.8mm
  • the distance between the support portion and the effective display area of the display module is 0.8mm.
  • the size of the orthographic projection of the support portion on the diaphragm assembly in the thickness direction of the flange is 1.34 mm, and the protrusions of the two first sub-frames adjacent to the bottom frame are the same as
  • the expansion gap between the diaphragm assemblies is 0.55 mm, and the thickness of the packaging tape 1 is 0.06 mm.
  • the length of the diagonal of the effective display area of the display module is 12.3 inches
  • the size of the raised portion in the direction away from the body of the corresponding sub-frame is 0.57 mm
  • the raised portion is 0.57 mm.
  • the dimension of the rising portion in the direction perpendicular to the support portion is 1.2mm
  • the thickness of the flange is 0.8mm
  • the distance between the support portion and the effective display area of the display module is 0.8mm.
  • the size of the orthographic projection of the support portion on the diaphragm assembly in the thickness direction of the flange is 1.25 mm, and the protrusions of the two first sub-frames adjacent to the bottom frame are the same as
  • the expansion gap between the diaphragm assemblies is 0.68 mm, and the thickness of the packaging tape is 0.06 mm.
  • a vehicle-mounted display module provided by the present invention includes any one of the display modules provided in the above technical solutions, so at least the technical effect that can be achieved by the above-mentioned display module can be achieved, that is, the main body of the sub-frame provided with the raised portion
  • the distance from the diaphragm assembly is reduced, and the total width of the corresponding frame of the display module is further reduced compared with the prior art, which can better meet people's needs for ultra-narrow frame display modules, and is feasible for mass production , can improve product competitiveness.
  • FIG. 1 is a cross-sectional view of a frame in a display module in the prior art
  • FIG. 2 is a cross-sectional view of a sub-frame provided with a raised portion in a display module provided by an embodiment of the present invention
  • FIG 3 is a cross-sectional view of a first sub-frame in a display module according to an embodiment of the present invention.
  • Icon 1-Packaging tape; 2-Middle frame; 21-Support part; 22-Protrusion part; 3-Back plate; 33-Flanging; 4-Backlight source; 5-Light guide plate; -foam tape; 8-display panel; 9-light bar.
  • the display module provided in this embodiment includes a display panel 8 , a middle frame 2 , a diaphragm assembly 6 , a backlight source 4 and a back plate 3 , and the back plate 3 is blocked at the bottom of the middle frame 2 .
  • the diaphragm assembly 6 and the backlight source 4 are both arranged in the accommodating cavity formed by the middle frame 2 and the back plate 3; wherein:
  • the middle frame 2 includes a plurality of sub-frames connected end to end, and each sub-frame includes a main body and a supporting portion 21 arranged on the main body; the supporting portion 21 extends into the accommodating cavity and forms a T-shaped structure with the main body; a support surface supporting the display panel 8, and the display panel 8 is arranged on the support surface;
  • the back plate 3 includes a base plate that is sealed at the bottom opening of the middle frame 2 and a flange 33 formed at the edge of the base plate and located inside the middle frame 2, and the flange 33 corresponds to the sub-frames one-to-one;
  • the multiple sub-frames of the middle frame 2 include at least one first sub-frame, and the part of the body of each first sub-frame away from the support surface is formed with a raised portion 22 extending into the accommodating cavity, and the raised portion 22 is away from the support portion 21 .
  • One side of the flange 33 is in contact with the side of the corresponding flange 33 facing the support portion 21, and in the thickness direction of the flange 33, the orthographic projection of the raised portion 22 on the substrate does not completely cover the corresponding flange 33 on the substrate. projection;
  • the backlight source 4 and the diaphragm assembly 6 are sequentially arranged on the substrate, and along the thickness direction of the flange 33 , an expansion gap is reserved between the protruding portion 22 and the diaphragm assembly 6 .
  • the part of the body of the first sub-frame of the middle frame away from the support surface is provided with a raised portion 22 extending into the accommodating cavity, so that the flange 33 of the back plate 3 with limited thickness and the film
  • the sheet assembly 6 is staggered, and the protrusion 22 is opposite to the diaphragm assembly 6, and an expansion gap is reserved between the diaphragm assembly 6, and the expansion limited boundary is transferred from the inner side of the flange 33 to the protrusion of the first sub-frame
  • the orthographic projection of the raised part 22 on the substrate does not completely cover the orthographic projection of the corresponding flange 33 on the substrate, so that under the condition that other conditions remain unchanged, set
  • the distance between the main body of the sub-frame with the raised portion 22 and the diaphragm assembly 6 is reduced, and the total width of the corresponding frame of the display module is further reduced compared to the prior art, which can better satisfy people's need for ultra-narrow frame display.
  • the side of the raised portion 22 facing away from the support portion 21 is in contact with the side of the corresponding flange 33 facing the support portion 21, which is beneficial to ensure that the vibration drop test and the reliability test do not appear to function. Therefore, the feasibility of mass production is higher.
  • the display panel 8 can be pasted on the support surface of the support part 21 by the foam tape 7 .
  • the multiple sub-frames of the middle frame 2 include at least one second sub-frame, and the second sub-frame is not provided with a raised portion 22; the side of the support portion 21 of each second sub-frame facing away from the support surface and the corresponding flip.
  • the side 33 is in contact with the side facing the support portion 21 , and along the thickness direction of the flange 33 , an expansion gap is reserved between the flange 33 and the diaphragm assembly 6 .
  • the backlight source 4 includes a light guide plate 5 and a light bar 9 arranged on the light incident side of the light guide plate 5.
  • the sub-frames are closest to the light bar 9 and extend along the length direction of the light bar 9.
  • the border is the second sub-border.
  • the orthographic projection of the protrusions 22 on the substrate and the corresponding flanges 33 has sufficient contact area
  • the orthographic projection of the protrusions 22 on the substrate and the corresponding flanges is greater than or equal to 0.3 mm, optionally, A ⁇ 0.4 mm.
  • the thickness of the flange 33 (ie, d in the figure) can be between 0.8mm and 1.2mm, and the raised portion 22 is away from the corresponding
  • the dimension in the direction of the body of the sub-frame (ie, x in the figure) is greater than or equal to 0.5 mm.
  • d when the length of the diagonal of the effective display area of the display module is within 10 inches, d can be selected as 0.8mm; when the length of the diagonal of the effective display area of the display module is 10 inches to 13 inches When it is between, d can be selected from 0.8mm to 1mm, and when the diagonal length of the effective display area of the display module is more than 15 inches, d can be selected as 1.2mm.
  • the diaphragm assembly 6 is located between the support portion 21 and the flange 33, and the surface of the diaphragm assembly 6 facing away from the support portion 21 and the flange 33 face the support There are gaps between the surfaces of the portion 21 .
  • the display module mentioned in this embodiment may be a quadrilateral display module or a special-shaped display module.
  • the display module usually due to the large horizontal size, it is more difficult to achieve a narrow frame design on the left and right sides. frame, wherein the sub frame corresponding to the bottom edge of the display panel 8 is the bottom frame, and the two sub frames adjacent to the bottom frame in the middle frame 2 are the first sub frame.
  • the middle frame 2 includes four subframes connected end to end, wherein the subframe corresponding to the bottom edge of the display panel 8 is the bottom frame, and the three subframes in the middle frame 2 except the bottom frame are the first child border.
  • the middle frame 2 when the middle frame 2 includes four subframes connected end to end, the number of the first subframes in the four subframes may also be one or four, and the four subframes of the middle frame 2 are all provided with raised portions 22, optionally, this structure can be used in, for example, a direct type backlight module.
  • the expansion gap reserved between the raised portion 22 and the diaphragm assembly 6 is to ensure that the diaphragm assembly 6 has sufficient expansion space at high temperature.
  • the middle frame is a rectangular frame, and the middle frame 2
  • the three sub-frames except the bottom frame are the first sub-frames.
  • the length direction of the diaphragm assembly is parallel to the length direction of the bottom frame, and the width direction of the diaphragm assembly is perpendicular to the length direction of the bottom frame.
  • the direction of expansion is: the long side expands symmetrically in the left and right directions, and the short side expands in one direction upward.
  • the expansion gap corresponding to the diaphragm assembly and the left and right first sub-frames is greater than or equal to the total length of the diaphragm L ⁇ expansion coefficient/2,
  • the expansion gap between the diaphragm assembly and the first sub-frame opposite to the bottom frame is greater than the total diaphragm width W ⁇ expansion coefficient; wherein, the diaphragm expansion coefficient is generally selected as 0.4%, and the LGP expansion coefficient is generally selected as 0.3%.
  • the value of the expansion gap between the protrusions of the two first sub-frames adjacent to the bottom frame and the diaphragm assembly is greater than or equal to 0.002 times the length of the diaphragm assembly at room temperature, and the first sub-frame opposite to the bottom frame
  • the value of the expansion gap between the protrusion and the diaphragm assembly is greater than or equal to 0.004 times the width of the diaphragm assembly at room temperature.
  • the distance between the support portion 21 and the effective display area of the display module is greater than or equal to 0.8 mm;
  • the orthographic projection of the support portion 21 on the diaphragm assembly 6 at normal temperature in the thickness direction of the flange 33 (that is, b in the figure) can be greater than or equal to 1.2 mm; when the effective display of the display module When the length of the diagonal of the area is greater than 12.3 inches, the size of the orthographic projection of the support portion 21 on the diaphragm assembly 6 in the thickness direction of the flange 33 at normal temperature may be greater than or equal to 1.5 mm.
  • the gap between the body and the corresponding flange 33 ie, e in the figure) is 0.1 mm.
  • the display module mentioned in this embodiment may be a liquid crystal display module.
  • the following example compares the limit width of the frame of the display module provided by the present embodiment with the limit width of the frame of the display module in the prior art.
  • the diagonal length of the effective display area of the display module is 10.25 inches in structural design
  • the middle frame 2 is made of PC (polycarbonate), and the injection molding process is used.
  • the two first sub-frames adjacent to the bottom frame are provided with raised portions 22, the bottom frame of the middle frame 2 corresponds to the light bar 9, and the raised portions 22 are not provided;
  • the dimension x in the direction of the body is 0.55mm
  • the height of the raised part 22 (that is, the dimension of the raised part in the direction perpendicular to the support part) y is 1.16mm, to ensure that the diaphragm assembly 6 does not overlap with the back after expansion.
  • the flanges 33 of the plate 3 interfere.
  • the material of the back plate 3 is aluminum or other common metal materials, the thickness of the flange 33 of the back plate 3 is designed to be 0.8mm, and the height of the flange 33 on the left and right sides of the back plate 3 is shorter than that of the flange 33 on the side of the light bar 9 1.16mm, to ensure that the diaphragm is not interfered by the back plate 3 after expansion.
  • a is set to 0.8mm ( ⁇ 0.8mm)
  • b is set to 1.34mm (>1.2mm, the larger the value, the smaller the risk of the diaphragm assembly 6 jumping off and the side bright line)
  • the thickness of the packaging tape 1 (Cell tape) is set to 0.06mm.
  • Embodiment 2 is a diagrammatic representation of Embodiment 1:
  • the length of the diagonal of the effective display area of the display module is a structural design of 12.3 inches, and the width of the module frame is less than or equal to 4.06mm.
  • the material of the middle frame 2 is PC, and the left and right subframes of the middle frame 2 are both.
  • a raised portion 22 is provided, the bottom frame of the middle frame 2 corresponds to the light bar 9, and the raised portion 22 is not provided; the dimension x of the raised portion 22 in the direction away from the body of the corresponding sub frame is 0.57mm ( ⁇ 0.5 mm, which meets the requirements), the height y of the raised portion 22 is 1.2 mm, to ensure that the diaphragm assembly 6 does not interfere with the flange 33 of the back plate 3 after expansion.
  • the material of the back panel 3 is aluminum, the thickness of the flange 33 of the back panel 3 is designed to be 0.8mm, and the height of the flanges 33 on the left and right sides of the back panel 3 is 1.2mm shorter than the height of the flanges 33 on the side of the light bar 9 to ensure that the diaphragm The assembly 6 does not interfere with the backing plate 3 after expansion.
  • a is set to 0.8mm
  • b is set to 1.25mm (>1.2mm)
  • packaging tape 1 (Cell tape) is set to a thickness of 0.06mm.
  • the vehicle-mounted display module provided in this embodiment includes any display module provided in the above technical solutions, so at least the technical effect that can be achieved by the above display module can be achieved, that is, the sub-frame provided with the raised portion is
  • the distance between the body and the diaphragm assembly is reduced, and the total width of the corresponding frame of the display module is further reduced compared with the prior art, which can better meet people's needs for ultra-narrow frame display modules, and is feasible for mass production. can improve product competitiveness.

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mathematical Physics (AREA)
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Abstract

一种显示模组及车载显示模组。显示模组包括显示面板（8）、中框（2）、膜片组件（6）、背光源（4）和背板（3）。中框（2）包括多个子边框，子边框包括本体和支撑部（21），显示面板（8）设置于支撑部（21）的支撑面上。背板（3）包括基板和翻边（33），翻边（33）与子边框一一对应。多个子边框包括至少一个第一子边框，第一子边框的本体设有凸起部（22），凸起部（22）与对应的翻边（33）抵接，且在翻边（33）的厚度方向上在基板上的正投影未完全覆盖对应的翻边（33）在基板上的正投影。背光源（4）和膜片组件（6）依次设置于基板上，且膜片组件（6）位于支撑部（21）与翻边（33）之间；沿翻边（33）的厚度方向，凸起部（22）与膜片组件（6）之间预留有膨胀间隙。由此，改善了现有技术中显示模组边框的宽度不能进一步减小的问题。

Description

一种显示模组及车载显示模组
相关申请的交叉引用
本申请要求在2020年10月22日提交中国专利局、申请号为202022392931.4、申请名称为“一种显示模组及车载显示模组”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
本发明涉及显示技术领域，特别涉及一种显示模组及车载显示模组。
背景技术
近年来，车载显示模组的应用日益普遍，而随着技术的发展以及消费者对显示模组外观要求的提高，超窄边框的显示模组成为了一种发展趋势。
如图1所示，现有技术中，显示模组通常包括中框2、背板3、背光源和膜片组件6，其中，中框2包括框体和形成于框体上、用于支撑显示面板8的支撑部21。背板3包括封堵于中框2底端敞口处的基板和形成于基板边缘处并位于中框内侧的翻边33，翻边33与支撑部21抵接。膜片组件6与背板3的翻边33之间预留有膨胀间隙。由于背板3的翻边33等的厚度均需要满足一定的要求，所以现有情况下，显示模组边框的宽度已经不能再进一步减小。
发明内容
本发明提供了一种显示模组及车载显示模组，用于改善现有技术中，显示模组边框的宽度不能进一步减小的问题。
为达到上述目的，本发明提供以下技术方案：
一种显示模组，包括：显示面板、中框、膜片组件、背光源和背板，所述背板封堵于所述中框底部的敞口处，所述膜片组件和所述背光源均设置于所述中框与所述背板围设而成的容纳腔中；其中：
所述中框包括首尾依次连接的多个子边框，每个所述子边框均包括本体和设于所述本体上的支撑部；所述支撑部向所述容纳腔中延伸，与所述本体构成T字形结构；所述支撑部具有用于支撑所述显示面板的支撑面，所述显示面板设置于所述支撑面上；
所述背板包括封堵于所述中框底部敞口处的基板和形成于所述基板边缘处并位于所述中框内侧的翻边，所述翻边与所述子边框一一对应；
所述中框具有的多个子边框包括至少一个第一子边框，每一个所述第一子边框的本体背离所述支撑面的部位形成有向所述容纳腔中延伸的凸起部，所述凸起部背离所述支撑部的一面与对应的所述翻边朝向所述支撑部的一面抵接，且在所述翻边的厚度方向上，所述凸起部在所述基板上的正投影未完全覆盖对应的所述翻边在所述基板上的正投影；
所述背光源和所述膜片组件依次设置于所述基板上，沿所述翻边的厚度方向，所述凸起部与所述膜片组件之间预留有膨胀间隙。
本发明提供的显示模组中，中框第一子边框的本体背离支撑面的部位设有向容纳腔中延伸的凸起部，使厚度有限制的背板的翻边与膜片组件错开，改为凸起部与膜片组件相对、并与膜片组件之间预留有膨胀间隙，膨胀受限边界由翻边内侧转移到第一子边框的凸起部上；而在翻边的厚度方向上，凸起部在基板上的正投影未完全覆盖对应的翻边在基板上的正投影，使得在其他条件不变的情况下，设置有凸起部的子边框的本体与膜片组件之间的距离减小，显示模组的相应边框的总宽度相比于现有技术进一步减小，更能够满足人们对超窄边框显示模组的需求，而且具备量产可行性，能够提高产品竞争力。
此外，本实施例提供的上述显示模组，凸起部背离支撑部的一面与对应的翻边朝向支撑部的一面抵接，有利于保证振动跌落测试和信赖性测试不出现功能性问题，因而量产可行性更高。
可选地，所述凸起部在所述基板上的正投影与对应的所述翻边在所述基板上的正投影的重叠区域在所述翻边的厚度方向上的尺寸大于等于0.3mm。
可选地，当所述显示模组的有效显示区的对角线的长度在15英寸以内时，所述翻边的厚度值在0.8mm～1.2mm之间，所述凸起部在背离对应的所述子边框的本体的方向上的尺寸大于等于0.5mm。
可选地，对于第一子边框，沿所述膜片组件厚度方向，所述膜片组件位于所述支撑部与所述翻边之间、且所述膜片组件背离所述支撑部的表面与所述翻边朝向所述支撑部的表面之间有间隙。
可选地，所述中框具有的多个子边框包括至少一个第二子边框，所述第二子边框未设置所述凸起部；每一个所述第二子边框的支撑部背离所述支撑面的一面与对应的所述翻边朝向所述支撑部的一面抵接，且沿所述翻边的厚度方向，所述翻边与所述膜片组件之间预留有所述膨胀间隙。
可选地，所述背光源包括导光板和设置于所述导光板入光侧的灯条，多个所述子边框中与所述灯条最临近、且沿所述灯条长度方向延伸的子边框为所述第二子边框。
可选地，所述中框包括首尾依次连接的四个子边框，其中与所述显示面板的底边对应的子边框为底边框，所述中框中与所述底边框相邻的两个子边框为所述第一子边框。
可选地，所述中框包括首尾依次连接的四个子边框，其中与所述显示面板的底边对应的子边框为底边框，所述中框中除所述底边框以外的三个子边框为所述第一子边框。
可选地，所述中框为矩形框，所述膜片组件的长度方向与所述底边框的长度方向平行，所述膜片组件的宽度方向与所述底边框的长度方向垂直；
与所述底边框相邻的两个所述第一子边框的凸起部与所述膜片组件之间的所述膨胀间隙的值大于等于常温下所述膜片组件的长度的0.002倍，与所述底边框相对的所述第一子边框的凸起部与所述膜片组件之间的所述膨胀间隙的值大于等于常温下所述膜片组件的宽度的0.004倍。
可选地，所述支撑部与所述显示模组的有效显示区的距离大于等于0.8mm；
当所述显示模组的有效显示区的对角线的长度小于等于12.3英寸时，常温下所述支撑部在所述膜片组件上的正投影在所述翻边的厚度方向上的尺寸大于等于1.2mm；当所述显示模组的有效显示区的对角线的长度大于12.3英寸时，常温下所述支撑部在所述膜片组件上的正投影在所述翻边的厚度方向上的尺寸大于等于1.5mm。
可选地，包括封装胶带，所述封装胶带包覆于所述中框的外表面并贴附于所述显示面板的边缘，所述封装胶带的厚度值在0.05mm～0.1mm之间；
所述本体的厚度值在0.7mm～1.2mm之间。
可选地，所述本体与对应的所述翻边之间的间隙为0.1mm。
可选地，所述显示模组的有效显示区的对角线的长度为10.25英寸，所述凸起部在背离对应的所述子边框的本体的方向上的尺寸为0.55mm，所述凸起部在垂直于所述支撑部的方向上的尺寸为1.16mm，所述翻边的厚度为0.8mm，所述支撑部与所述显示模组的有效显示区的距离为0.8mm、常温下所述支撑部在所述膜片组件上的正投影在所述翻边的厚度方向上的尺寸为1.34mm，与所述底边框相邻的两个所述第一子边框的凸起部与所述膜片组件之间的所述膨胀间隙为0.55mm，所述封装胶带1的厚度为0.06mm。
可选地，所述显示模组的有效显示区的对角线的长度为12.3英寸，所述凸起部在背离对应的所述子边框的本体的方向上的尺寸为0.57mm，所述凸起部在垂直于所述支撑部的方向上的尺寸为1.2mm，所述翻边的厚度为0.8mm，所述支撑部与所述显示模组的有效显示区的距离为0.8mm、常温下所述支撑部在所述膜片组件上的正投影在所述翻边的厚度方向上的尺寸为1.25mm，与所述底边框相邻的两个所述第一子边框的凸起部与所述膜片组件之间的所述膨胀间隙为0.68mm，所述封装胶带的厚度为0.06mm。
本发明提供的一种车载显示模组包括上述技术方案中提供的任意一种显示模组，因而至少能够达到上述显示模组所能够达到的技术效果，即设置有凸起部的子边框的本体与膜片组件之间的距离减小，显示模组的相应边框的总宽度相比于现有技术进一步减小，更能够满足人们对超窄边框显示模组的 需求，而且具备量产可行性，能够提高产品竞争力。
附图说明
图1为现有技术中显示模组中一个边框处的截面图；
图2为本发明实施例提供的显示模组中设置有凸起部的子边框处的截面图；
图3为本发明实施例提供的显示模组中第一子边框处的截面图。
图标：1-封装胶带；2-中框；21-支撑部；22-凸起部；3-背板；33-翻边；4-背光源；5-导光板；6-膜片组件；7-泡棉胶带；8-显示面板；9-灯条。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
如图2和图3所示，本实施例提供的显示模组包括显示面板8、中框2、膜片组件6、背光源4和背板3，背板3封堵于中框2底部的敞口处，膜片组件6和背光源4均设置于中框2与背板3围设而成的容纳腔中；其中：
中框2包括首尾依次连接的多个子边框，每个子边框均包括本体和设于本体上的支撑部21；支撑部21向容纳腔中延伸，与本体构成T字形结构；支撑部21具有用于支撑显示面板8的支撑面，显示面板8设置于支撑面上；
背板3包括封堵于中框2底部敞口处的基板和形成于基板边缘处并位于中框2内侧的翻边33，翻边33与子边框一一对应；
中框2具有的多个子边框包括至少一个第一子边框，每一个第一子边框的本体背离支撑面的部位形成有向容纳腔中延伸的凸起部22，凸起部22背离支撑部21的一面与对应的翻边33朝向支撑部21的一面抵接，且在翻边33的厚度方向上，凸起部22在基板上的正投影未完全覆盖对应的翻边33在基 板上的正投影；
背光源4和膜片组件6依次设置于基板上，沿翻边33的厚度方向，凸起部22与膜片组件6之间预留有膨胀间隙。
本实施例提供的显示模组中，中框第一子边框的本体背离支撑面的部位设有向容纳腔中延伸的凸起部22，使厚度有限制的背板3的翻边33与膜片组件6错开，改为凸起部22与膜片组件6相对、并与膜片组件6之间预留有膨胀间隙，膨胀受限边界由翻边33内侧转移到第一子边框的凸起部22上；而在翻边33的厚度方向上，凸起部22在基板上的正投影未完全覆盖对应的翻边33在基板上的正投影，使得在其他条件不变的情况下，设置有凸起部22的子边框的本体与膜片组件6之间的距离减小，显示模组的相应边框的总宽度相比于现有技术进一步减小，更能够满足人们对超窄边框显示模组的需求，而且具备量产可行性，能够提高产品竞争力。
此外，本实施例提供的上述显示模组，凸起部22背离支撑部21的一面与对应的翻边33朝向支撑部21的一面抵接，有利于保证振动跌落测试和信赖性测试不出现功能性问题，因而量产可行性更高。
具体设置上述显示面板8时，显示面板8可以通过泡棉胶带7粘贴在支撑部21的支撑面上。
可选地，中框2具有的多个子边框包括至少一个第二子边框，第二子边框未设置凸起部22；每一个第二子边框的支撑部21背离支撑面的一面与对应的翻边33朝向支撑部21的一面抵接，且沿翻边33的厚度方向，翻边33与膜片组件6之间预留有膨胀间隙。
一种具体实现方式中，背光源4包括导光板5和设置于导光板5入光侧的灯条9，多个子边框中与灯条9最临近、且沿9灯条9长度方向延伸的子边框为第二子边框。
具体设置上述凸起部22时，为了确保凸起部22与相应翻边33具有足够的接触面积，一种可选的技术方案中，凸起部22在基板上的正投影与对应的翻边33在基板上的正投影的重叠区域在翻边33的厚度方向上的尺寸(即图 中的A)大于等于0.3mm，可选地，A≥0.4mm。
当显示模组的有效显示区的对角线的长度在15英寸以内时，翻边33的厚度(即图中的d)可以在0.8mm～1.2mm之间，凸起部22在背离对应的子边框的本体的方向上的尺寸(即图中的x)大于等于0.5mm。
可选地，当显示模组的有效显示区的对角线的长度在10英寸以内时，d可选择0.8mm；当显示模组的有效显示区的对角线的长度在10英寸～13英寸之间时，d可选0.8mm～1mm，当显示模组的有效显示区的对角线的长度在15英寸以上时，d可选择1.2mm。
可选地，对于第一子边框，沿膜片组件6厚度方向，膜片组件6位于支撑部21与翻边33之间、且膜片组件6背离支撑部21的表面与翻边33朝向支撑部21的表面之间有间隙。
本实施例中提到的显示模组可以为四边形的显示模组，也可以为异形显示模组。以显示模组为四边形显示模组为例，通常由于水平尺寸较大，所以左右两侧更难达成窄边框设计，本实施例一种具体实现方式中，中框2包括首尾依次连接的四个子边框，其中与显示面板8的底边对应的子边框为底边框，中框2中与底边框相邻的两个子边框为第一子边框。
另一种实现方式中，中框2包括首尾依次连接的四个子边框，其中与显示面板8的底边对应的子边框为底边框，中框2中除底边框以外的三个子边框为第一子边框。
在其他实现方式中，当中框2包括首尾依次连接的四个子边框时，四个子边框中第一子边框的数量还可以为一个或者四个，当中框2的四个子边框均设有凸起部22时，可选地，该结构可以用于例如直下式背光模组。
凸起部22与膜片组件6之间预留的膨胀间隙(即图中的h)是为了保证膜片组件6在高温下有足够的膨胀空间，以中框为矩形框，中框2中除底边框以外的三个子边框为第一子边框，膜片组件的长度方向与底边框的长度方向平行，膜片组件的宽度方向与底边框的长度方向垂直为例，一般设定膜片组件膨胀的方向为：长边沿左右两个方向对称膨胀，短边向上单方向膨胀， 因此，膜片组件与左右两个第一子边框对应的膨胀间隙大于等于膜片总长L×膨胀系数/2，膜片组件与和底边框相对的第一子边框之间的膨胀间隙大于膜片总宽W×膨胀系数；其中，膜片膨胀系数一般选取0.4％，LGP膨胀系数一般选取0.3％。
即与底边框相邻的两个第一子边框的凸起部与膜片组件之间的膨胀间隙的值大于等于常温下膜片组件的长度的0.002倍，与底边框相对的第一子边框的凸起部与膜片组件之间的膨胀间隙的值大于等于常温下膜片组件的宽度的0.004倍。
具体设置上述支撑部21时，为了保证用户无法看到支撑部21，支撑部21与显示模组的有效显示区的距离(即图中的a)大于等于0.8mm；
具体设置上述膜片组件6时，为了保证膜片组件6在收缩后不跳脱至中框2外以致产生漏光风险，本实施例中，当显示模组的有效显示区的对角线的长度小于等于12.3英寸时，常温下支撑部21在膜片组件6上的正投影在翻边33的厚度方向上的尺寸(即图中的b)可以大于等于1.2mm；当显示模组的有效显示区的对角线的长度大于12.3英寸时，常温下支撑部21在膜片组件6上的正投影在翻边33的厚度方向上的尺寸可以大于等于1.5mm。
一种具体实现方式中，显示模组包括封装胶带1，封装胶带1包覆于中框2的外表面并贴附于显示面板8的边缘，封装胶带1的厚度值(即图中的g)在0.05mm～0.1mm之间；子边框的本体的厚度(即图中的f)值在0.7mm～1.2mm之间，例如：f＝1mm。本体与对应的翻边33之间的间隙(即图中的e)为0.1mm。
本实施例中提到的显示模组可以为液晶显示模组。
下面举例对本实施提供的显示模组的边框的极限宽度与现有技术中的显示模组的边框的极限宽度进行比较。
如图1所示，现有技术中的显示模组(Module，简称MDL)的极限边框宽度＝a+b+c+d+e+f+g，其中，a、b、d、e、f和g代表的含义可以参照本实施，c为翻边的内表面与膜片组件之间的距离，若a取0.8，e取0.1，f取0.7，g取0.06，则MDL的左右边框极限宽度＝0.8+b+(L×0.004/2)+d+0.1+0.7+0.06； MDL的上边框极限宽度＝0.8+b+(W×0.004)+d+0.1+0.7+0.06。
若显示模组的有效显示区的对角线的长度为10.25英寸，则b为1.2mm，膜片长度L为250mm，宽度W为100mm，d值为0.8mm，显示模组的左右边框极限宽度＝4.16mm，上边框极限宽度＝4.06mm；
若显示模组的有效显示区的对角线的长度为12.3英寸，则b为1.2mm，膜片长度L为300mm，宽度W为120mm，d值为0.8mm，显示模组的左右边框极限宽度＝4.26mm，上边框极限宽度＝4.14mm。
本实施例提供的显示模组中翻边33与膜片组件6的间距c为h+x-e-d＝h+x-0.1-dmm，将其带入上式，可得出显示模组的左右边框极限宽度＝a+b+c+d+e+f+g＝a+b+0.002L+x-d-0.1+d+0.1+f+0.06＝a+b+0.002L+x+f+0.06mm；
上边框极限宽度＝a+b+0.004W+x+f+0.06mm。
若显示模组的有效显示区的对角线的长度为10.25英寸，则背板3厚度为0.8mm，台阶宽度x设计为0.5mm，则显示模组的左右边框极限宽度＝a+b+0.002L+x+f+0.06mm＝0.8+1.2+0.002×250+x+0.7+0.06＝3.26+0.5＝3.76mm＜4.16mm；上边框极限宽度＝3.66mm＜4.06mm；
若显示模组的有效显示区的对角线的长度为12.3英寸，背板3厚度为0.8mm，台阶宽度x设计为0.5mm，则显示模组的左右边框极限宽度＝a+b+0.002L+x+f+0.06mm＝0.8+1.2+0.002×300+x+0.7+0.06＝3.86mm＜4.26mm，上边框极限宽度＝3.74mm＜4.14mm。
下面列举两个显示模组为矩形的具体实施例，实施例一：
显示模组的有效显示区的对角线的长度为10.25英寸的结构设计，中框2材质为PC(聚碳酸酯)，采用注塑成型工艺，中框2的左、右两个子边框(即与底边框相邻的两个第一子边框)均设置有凸起部22，中框2的底边框与灯条9对应，未设置凸起部22；凸起部22在背离对应的子边框的本体的方向上的尺寸x为0.55mm，凸起部22的高度(即凸起部在垂直于所述支撑部的方向上的尺寸)y为1.16mm，确保膜片组件6膨胀后不与背板3的翻边33干涉。
背板3的材质为铝或其他常用金属材料，背板3的翻边33的厚度设计为0.8mm，背板3的左右两侧翻边33的高度比灯条9侧翻边33的高度矮1.16mm，确保膜片膨胀后不被背板3干涉。
进一步地，a设定为0.8mm(≥0.8mm)、b设定为1.34mm(＞1.2mm，该值越大，膜片组件6跳脱以及侧边亮线风险越小)，中框的左、右两个子边框的凸起部与膜片组件6之间的膨胀间隙h设定为0.55mm(＞0.002L＝0.5mm)，封装胶带1(Cell tape)设定为厚度0.06mm，通过计算可得：显示模组左右边框宽度＝0.8+1.34+0.55+0.55+0.7+0.06＝4.0mm。
实施例二：
显示模组的有效显示区的对角线的长度为12.3英寸的结构设计，模组边框宽度≤4.06mm，具体地，中框2的材质为PC，中框2的左、右两个子边框均设置有凸起部22，中框2的底边框与灯条9对应，未设置凸起部22；凸起部22在背离对应的子边框的本体的方向上的尺寸x为0.57mm(≥0.5mm，满足要求)，凸起部22的高度y为1.2mm，确保膜片组件6膨胀后不与背板3的翻边33干涉。
背板3的材质为铝，背板3翻边33的厚度设计为0.8mm，背板3的左右两侧翻边33的高度比灯条9侧翻边33的高度矮1.2mm，确保膜片组件6膨胀后不与背板3干涉。
进一步地，a设定为0.8mm、b设定为1.25mm(＞1.2mm)，中框的左、右两个子边框的凸起部与膜片组件6之间的膨胀间隙h设定为0.68mm(＞0.002L＝0.6mm)封装胶带1(Cell tape)设定为厚度0.06mm，通过计算可得：显示模组左右边框的宽度＝0.8+1.25+0.68+0.57+0.7+0.06＝4.06mm。
本实施例提供的一种车载显示模组包括上述技术方案中提供的任意一种显示模组，因而至少能够达到上述显示模组所能够达到的技术效果，即设置有凸起部的子边框的本体与膜片组件之间的距离减小，显示模组的相应边框的总宽度相比于现有技术进一步减小，更能够满足人们对超窄边框显示模组的需求，而且具备量产可行性，能够提高产品竞争力。
显然，本领域的技术人员可以对本发明进行各种改动和变型而不脱离本发明的精神和范围。这样，倘若本发明的这些修改和变型属于本发明权利要求及其等同技术的范围之内，则本发明也意图包含这些改动和变型在内。

Claims (15)

  1. 一种显示模组，其特征在于，包括显示面板、中框、膜片组件、背光源和背板，所述背板封堵于所述中框底部的敞口处，所述膜片组件和所述背光源均设置于所述中框与所述背板围设而成的容纳腔中；其中：
    所述中框包括首尾依次连接的多个子边框，每个所述子边框均包括本体和设于所述本体上的支撑部；所述支撑部向所述容纳腔中延伸，与所述本体构成T字形结构；所述支撑部具有用于支撑所述显示面板的支撑面，所述显示面板设置于所述支撑面上；
    所述背板包括封堵于所述中框底部敞口处的基板和形成于所述基板边缘处并位于所述中框内侧的翻边，所述翻边与所述子边框一一对应；
    所述中框具有的多个子边框包括至少一个第一子边框，每一个所述第一子边框的本体背离所述支撑面的部位形成有向所述容纳腔中延伸的凸起部，所述凸起部背离所述支撑部的一面与对应的所述翻边朝向所述支撑部的一面抵接，且在所述翻边的厚度方向上，所述凸起部在所述基板上的正投影未完全覆盖对应的所述翻边在所述基板上的正投影；
    所述背光源和所述膜片组件依次设置于所述基板上，沿所述翻边的厚度方向，所述凸起部与所述膜片组件之间预留有膨胀间隙。
  2. 根据权利要求1所述的显示模组，其特征在于，所述凸起部在所述基板上的正投影与对应的所述翻边在所述基板上的正投影的重叠区域在所述翻边的厚度方向上的尺寸大于等于0.3mm。
  3. 根据权利要求2所述的显示模组，其特征在于，当所述显示模组的有效显示区的对角线的长度在15英寸以内时，所述翻边的厚度值在0.8mm～1.2mm之间，所述凸起部在背离对应的所述子边框的本体的方向上的尺寸大于等于0.5mm。
  4. 根据权利要求1-3任意一项所述的显示模组，其特征在于，对于第一子边框，沿所述膜片组件厚度方向，所述膜片组件位于所述支撑部与所述翻 边之间、且所述膜片组件背离所述支撑部的表面与所述翻边朝向所述支撑部的表面之间有间隙。
  5. 根据权利要求1所述的显示模组，其特征在于，所述中框具有的多个子边框包括至少一个第二子边框，所述第二子边框未设置所述凸起部；每一个所述第二子边框的支撑部背离所述支撑面的一面与对应的所述翻边朝向所述支撑部的一面抵接，且沿所述翻边的厚度方向，所述翻边与所述膜片组件之间预留有所述膨胀间隙。
  6. 根据权利要求2所述的显示模组，其特征在于，所述背光源包括导光板和设置于所述导光板入光侧的灯条，多个所述子边框中与所述灯条最临近、且沿所述灯条长度方向延伸的子边框为所述第二子边框。
  7. 根据权利要求1所述的显示模组，其特征在于，所述中框包括首尾依次连接的四个子边框，其中与所述显示面板的底边对应的子边框为底边框，所述中框中与所述底边框相邻的两个子边框为所述第一子边框。
  8. 根据权利要求1所述的显示模组，其特征在于，所述中框包括首尾依次连接的四个子边框，其中与所述显示面板的底边对应的子边框为底边框，所述中框中除所述底边框以外的三个子边框为所述第一子边框。
  9. 根据权利要求8所述的显示模组，其特征在于，所述中框为矩形框，所述膜片组件的长度方向与所述底边框的长度方向平行，所述膜片组件的宽度方向与所述底边框的长度方向垂直；
    与所述底边框相邻的两个所述第一子边框的凸起部与所述膜片组件之间的所述膨胀间隙的值大于等于常温下所述膜片组件的长度的0.002倍，与所述底边框相对的所述第一子边框的凸起部与所述膜片组件之间的所述膨胀间隙的值大于等于常温下所述膜片组件的宽度的0.004倍。
  10. 根据权利要求7或8所述的显示模组，其特征在于，所述支撑部与所述显示模组的有效显示区的距离大于等于0.8mm；
    当所述显示模组的有效显示区的对角线的长度小于等于12.3英寸时，常温下所述支撑部在所述膜片组件上的正投影在所述翻边的厚度方向上的尺寸 大于等于1.2mm；当所述显示模组的有效显示区的对角线的长度大于12.3英寸时，常温下所述支撑部在所述膜片组件上的正投影在所述翻边的厚度方向上的尺寸大于等于1.5mm。
  11. 根据权利要求10所述的显示模组，其特征在于，包括封装胶带，所述封装胶带包覆于所述中框的外表面并贴附于所述显示面板的边缘，所述封装胶带的厚度值在0.05mm～0.1mm之间；
    所述本体的厚度值在0.7mm～1.2mm之间。
  12. 根据权利要求10所述的显示模组，其特征在于，所述本体与对应的所述翻边之间的间隙为0.1mm。
  13. 根据权利要求11所述的显示模组，其特征在于，所述显示模组的有效显示区的对角线的长度为10.25英寸，所述凸起部在背离对应的所述子边框的本体的方向上的尺寸为0.55mm，所述凸起部在垂直于所述支撑部的方向上的尺寸为1.16mm，所述翻边的厚度为0.8mm，所述支撑部与所述显示模组的有效显示区的距离为0.8mm、常温下所述支撑部在所述膜片组件上的正投影在所述翻边的厚度方向上的尺寸为1.34mm，与所述底边框相邻的两个所述第一子边框的凸起部与所述膜片组件之间的所述膨胀间隙为0.55mm，所述封装胶带的厚度为0.06mm。
  14. 根据权利要求11所述的显示模组，其特征在于，所述显示模组的有效显示区的对角线的长度为12.3英寸，所述凸起部在背离对应的所述子边框的本体的方向上的尺寸为0.57mm，所述凸起部在垂直于所述支撑部的方向上的尺寸为1.2mm，所述翻边的厚度为0.8mm，所述支撑部与所述显示模组的有效显示区的距离为0.8mm，常温下所述支撑部在所述膜片组件上的正投影在所述翻边的厚度方向上的尺寸为1.25mm，与所述底边框相邻的两个所述第一子边框的凸起部与所述膜片组件之间的所述膨胀间隙为0.68mm，所述封装胶带的厚度为0.06mm。
  15. 一种车载显示模组，其特征在于，包括权利要求1-14任一项所述的显示模组。
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