WO2023184100A1 - 背光模组、显示模组及显示装置 - Google Patents
背光模组、显示模组及显示装置 Download PDFInfo
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- WO2023184100A1 WO2023184100A1 PCT/CN2022/083455 CN2022083455W WO2023184100A1 WO 2023184100 A1 WO2023184100 A1 WO 2023184100A1 CN 2022083455 W CN2022083455 W CN 2022083455W WO 2023184100 A1 WO2023184100 A1 WO 2023184100A1
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- WIPO (PCT)
- Prior art keywords
- light guide
- guide plate
- annular step
- plastic frame
- close
- Prior art date
Links
- 239000012788 optical film Substances 0.000 claims abstract description 54
- 239000004033 plastic Substances 0.000 claims abstract description 52
- 239000002390 adhesive tape Substances 0.000 claims abstract description 15
- 230000007704 transition Effects 0.000 claims description 13
- 238000010586 diagram Methods 0.000 description 15
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 239000000470 constituent Substances 0.000 description 3
- 239000003292 glue Substances 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005282 brightening Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Images
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
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
Definitions
- Embodiments of the present disclosure relate to but are not limited to the field of display technology, and specifically relate to a backlight module, a display module and a display device.
- vehicle-mounted display devices often use liquid crystal display devices.
- the backlight modules of some vehicle-mounted LCD devices include plastic frames, back plates, light sources, light guide plates, optical films, etc.
- the light guide plate is usually active inside the backlight module, and the backlight The overall stability of the module is insufficient, which affects the display effect.
- Embodiments of the present disclosure provide a backlight module, including a backplane, a plastic frame located on one side of the backplane and connected to the backplane, a light source component located inside the plastic frame, and a light source component located inside the plastic frame.
- the reflective sheet, the light guide plate and the optical film set are stacked inside and in sequence;
- the light source assembly includes a circuit board and a light source provided on the first side of the circuit board, and the light source is located on the first side of the light guide plate.
- the light guide plate includes a first surface facing the reflective sheet and a second surface facing away from the reflective sheet; the end surface of the plastic frame facing the back plate is provided with a first annular step and a second An annular step.
- the portion of the reflective sheet close to the circumferential edge is bonded to the first annular step through a first double-sided tape.
- the reflective sheet is also connected to the light guide plate through the first double-sided tape.
- the portion of the first surface close to the remaining sides except the first side is bonded; the portion of the second surface of the light guide plate close to the circumferential edge is disposed toward the second annular step, and the third portion of the light guide plate is The portions of the two surfaces close to the first side are fixed on the second annular step.
- An embodiment of the present disclosure also provides a display module, including a display panel and the backlight module.
- An embodiment of the present disclosure also provides a display device, including the display module.
- Figure 1 is a schematic cross-sectional structural diagram of a display module according to some exemplary embodiments
- Figure 2 is a schematic top structural view of the backlight module in Figure 1 in some exemplary embodiments;
- Figure 3 is a partial structural diagram of the backlight module A' of Figure 2 in some exemplary embodiments
- Figure 4 is a partial structural diagram of the plastic frame in Figure 3;
- Figure 5 is a partial cross-sectional structural diagram of the backlight module of Figure 2 at A' in some exemplary embodiments;
- Figure 6 is a partial structural schematic diagram of the backlight module of Figure 2 at B' or C' in some exemplary embodiments;
- Figure 7 is a partial structural diagram of Figure 6 with the second tape removed.
- First double-sided tape 22.
- Second double-sided tape 23.
- the first frame 1202.
- the second frame 1203.
- the third frame 1204.
- the fourth frame
- Embodiments of the present disclosure provide a backlight module.
- the backlight module includes a backplane. 11.
- the plastic frame 12 provided on one side of the back plate 11 and connected to the back plate 11 , the light source component 13 located inside the plastic frame 12 , and the reflective elements located inside the plastic frame 12 and stacked in sequence. 14, light guide plate 15 and optical film set 16;
- the light source assembly 13 includes a circuit board 131 and a light source 132 provided on the first side of the circuit board 131.
- the light source 132 is located at the first side of the light guide plate 15;
- the light guide plate 15 includes an The first surface of the reflective sheet 14 and the second surface facing away from the reflective sheet 14;
- the end surface of the plastic frame 12 facing the back plate 11 is provided with a first annular step 121 and a second annular step 122.
- the portion of the reflective sheet 14 close to the circumferential edge is bonded to the back plate 11 by a first double-sided tape 21.
- the reflective sheet 14 is also bonded to the portion of the first surface of the light guide plate 15 close to the remaining sides except the first side through the first double-sided tape 21 ;
- a portion of the second surface of the light guide plate 15 close to the circumferential edge is disposed toward the second annular step 122 , and a portion of the second surface of the light guide plate 15 close to the first side is fixed on the second annular step 122 .
- steps 122 On steps 122.
- the first annular step 121 and the second annular step 122 provided on the plastic frame 12 can respectively limit and fix the reflective sheet 14 and the light guide plate 15.
- the first double-sided tape 21 The reflective sheet 14 is fixed on the first annular step 121 , and the reflective sheet 14 is bonded to the portion of the first surface of the light guide plate 15 close to the other sides except the first side, and the second side of the light guide plate 15 is The part of the surface close to the first side is fixed on the second annular step 122.
- the reflective sheet 14, the light guide plate 15 and the plastic frame 12 are fixed together to form a whole, which can prevent the light guide plate 15 and the reflective sheet 14 from being blocked by the backlight.
- the internal activities of the module are beneficial to enhancing the overall stability of the backlight module and facilitating the assembly of the backlight module.
- the second annular step 122 may be provided with a receiving groove 1221 , and the side of the circuit board 131 facing away from the light source 132 is adhered by a second double-sided tape 22 . Connected in the receiving groove 1221, the portion of the second surface of the light guide plate 15 close to the first side is bonded to the first side of the circuit board 131 through a third double-sided tape 23, as shown in Figure 1 Shown at B.
- the light source assembly 13 is fixed on the plastic frame 12 , and the portion of the second surface of the light guide plate 15 close to the first side is fixed on the circuit board 131 of the light source assembly 13 , so that the light source assembly 13 , the reflective sheet 14, the light guide plate 15 and the plastic frame 12 are fixed together to form a whole, which facilitates assembly with the backplane 11 and can enhance the overall stability of the backlight module.
- Placing the circuit board 131 of the light source assembly 13 in the receiving groove 1221 can make the first side of the circuit board 131 substantially flush with the surface of the second annular step 122 to avoid damage to the light guide plate 15 caused by uneven surfaces.
- Figure 2 is a top structural schematic diagram of the backlight module in Figure 1 in some exemplary embodiments.
- the plastic frame 12 may be rectangular, and the plastic frame 12 may include an opposite third One frame 1201 and a second frame 1202, and opposite third frames 1203 and fourth frames 1204.
- the shapes of the reflective sheet 14 and the light guide plate 15 may both be rectangular, and both the light guide plate 15 and the reflective sheet 14 include opposite first and second sides, and an opposite third side.
- the first side, the second side, the third side and the fourth side of the light guide plate 15 are respectively close to the first frame 1201, the second frame 1202, and the plastic frame 12.
- the third frame 1203 and the fourth frame 1204 are set. As shown in FIGS.
- the receiving groove 1221 may be provided on the first frame 1201 , and the circuit board 131 may be a strip-shaped flexible circuit board or a hard circuit board.
- the receiving groove 1221 It may extend along the length direction of the first frame 1201 .
- the portion of the reflective sheet 14 close to the circumferential edge (four sides) is bonded to the first annular step 121 through the first double-sided tape 21 , and the reflective sheet 14 is also bonded to the first double-sided adhesive tape 21 through the first double-sided adhesive tape 21 .
- the glue 21 is bonded to the portion of the first surface of the light guide plate 15 close to the second side, the third side and the fourth side.
- the first surface of the light guide plate 15 is The portion of the surface close to the first side is not bonded to the reflective sheet 14, as shown at C in Figure 1 .
- the portion of the second surface of the light guide plate close to the first side can be bonded to the second annular step through a fourth double-sided tape.
- the plastic frame includes a transition surface connected between the first annular step and the second annular step.
- the side of the circuit board of the light source assembly facing away from the light source can be fixed on the transition surface through double-sided tape. On the surface.
- the plastic frame 12 includes a transition surface 124 connected between the first annular step 121 and the second annular step 122 ; the light source 132 is located there. Between the first side of the light guide plate 15 and the transition surface 124, the distance between the first side of the light guide plate 15 and the transition surface 124 is greater than the distance between the remaining sides of the light guide plate 15 and the transition surface 124. The distance between the transition surfaces 124. In this way, there can be enough space between the first side of the light guide plate 15 and the transition surface 124 to accommodate the light source assembly 13 , and it is convenient for the first double-sided tape 21 to prevent the first surface of the light guide plate 15 from being close to the first surface. The rest of the side edges are bonded to the reflective sheet 14 .
- the end surface of the plastic frame 12 facing away from the back plate 11 may be provided with a third annular step 123 , and the third annular step 123 is arranged to face the display panel 51 The portion of the surface away from the display side close to the circumferential edge is limited.
- the back plate 11 may include a bottom plate 111 and side plates 112 provided on the circumferential edge of the bottom plate 111 , and the side plates 112 are surrounded by the glue. outside of frame 12.
- the plastic frame 12 can be snap-fitted with the side panel 112 to fix the plastic frame 12 and the back panel 11 together.
- the optical film set 16 may include a plurality of stacked optical films.
- the optical film set 16 may include three stacked optical films.
- the three optical films may be a diffuser sheet, a first prism sheet and a second optical film sheet.
- the diffusion sheet can make the light emitted from the second surface of the light guide plate 15 more uniform, and the first prism sheet and the second prism sheet can converge the light emitted from the diffusion sheet in the front view direction to play a brightening role.
- the number of optical films in the optical film set may be three or more.
- Figure 3 is a partial structural diagram of the backlight module A' of Figure 2 in some exemplary embodiments
- Figure 4 is a schematic diagram of the structure of Figure 3 A partial structural schematic diagram of the middle glue frame
- Figure 5 is a partial cross-sectional structural schematic diagram of the backlight module A' of Figure 2 in some exemplary embodiments.
- the optical film set 16 includes a plurality of stacked optical films. , at least one frame of the plastic frame 12 is provided with an escape groove 125, and each optical film is provided with a first lug 161 on the side close to the escape groove 125. The first lug 161 extends into the escape groove 125 and is fixed in the escape groove 125 through the first adhesive tape 31 .
- the rubber frame 12 is provided with a first fixing platform 126 on both sides of the avoidance groove 125.
- the first adhesive tape 31 is provided with an adhesive surface facing the optical film, the adhesive surface of the first tape 31 is provided with a ladder structure, and the two ends of the first tape 31 are respectively bonded to the two first fixing platforms. 126 , each step of the ladder structure is bonded to a corresponding first lug 161 , thereby fixing the first lug 161 of each optical film in the avoidance groove 125 .
- the escape groove 125 may be provided at the third annular step 123 , and the surface of the first fixing platform 126 bonded to the first adhesive tape 31 may be lower than the distance from the third annular step 123
- the surface of the light guide plate 15 and the surface of the first tape 31 facing away from the adhesive surface may be substantially flush with the surface of the third annular step 123 facing away from the light guide plate 15 .
- a plurality of the first lugs can be arranged in a stack, and among the two adjacent optical films, the first lugs of the optical film far away from the light guide plate The first lug of the optical film close to the light guide plate is partially exposed.
- the three optical films are the first optical film, the second optical film and the third optical film in sequence.
- the first lug 161b of the second optical film partially exposes the first lug 161a of the first optical film
- the first lug 161c of the third optical film partially exposes the first lug 161a of the second optical film.
- An escape groove 125 can be provided on a frame of the rubber frame 12 , and the escape groove 125 can extend along the length direction of a frame of the rubber frame 12 where the escape groove 125 is located.
- FIG. 6 is a partial structural schematic diagram of the backlight module of FIG. 2 at B' or C' in some exemplary embodiments.
- FIG. 7 is a diagram. The partial structural diagram after removing the second tape in 6.
- the optical film set 16 includes a plurality of stacked optical films. At least one frame of the plastic frame 12 is provided with a card slot 127. Each of the optical films A second lug 162 is provided on the side of the diaphragm close to the clamping groove 127 . A plurality of the second lugs 162 are stacked and extend into the clamping slot 127 . In this embodiment, the slot 127 cooperates with the plurality of second lugs 162 to limit the position of each optical film.
- the plastic frame 12 may be provided with second fixing platforms 128 on both sides of the slot 127 , and a third fixing platform 128 is bonded to the second fixing platform 128 .
- Two adhesive tapes 32 the second adhesive tape 32 spans the slot 127 and is located on the side of the plurality of second lugs 162 away from the light guide plate 15 , and the second adhesive tape 32 is connected to the second adhesive tape 32 .
- Lugs 162 are not bonded.
- the second tape 32 can play a limiting role to prevent the plurality of second lugs 162 from jumping out of the slot 127.
- the second tape 32 is not bonded to the second lugs 162. In this way, the optical film will not be deformed due to being completely fixed when thermal expansion occurs.
- one or more slots 127 may be provided on one frame of the plastic frame 12 , and the sizes of the plurality of second lugs 162 may be the same or different.
- the clamping groove 127 may be provided at the third annular step 123 , and the surface of the second fixing platform 128 bonded to the second tape 32 may be lower than the third annular step 123 away from the light guide plate. 15, the surface of the second tape 32 facing away from the adhesive surface may be substantially flush with the surface of the third annular step 123 facing away from the light guide plate 15.
- the card slot and the escape groove can be respectively provided on different frames of the plastic frame. For example, as shown in Figure 2, the escape groove can be provided on the third frame 1203 of the plastic frame 12, so The card slot is provided on the fourth frame 1204 of the plastic frame 12 .
- An embodiment of the present disclosure also provides a display module, which includes a display panel and any of the above backlight modules.
- the end surface of the plastic frame 12 away from the back plate 11 may be provided with a third annular step 123 , and the display panel 51 is located inside the plastic frame 12 . And the portion of the surface of the display panel 51 away from the display side that is close to the circumferential edge is disposed toward the third annular step 123 .
- double-sided tape may be provided on the third annular step 123 to fix the display panel 51 , or the display panel 51 may not be fixed to the third annular step 123 , and may be fixed on the third annular step 123 .
- a buffer layer is provided on the annular step 123 to protect the display panel 51 .
- the display panel 51 may be a liquid crystal display panel or the like.
- the display module may further include a fixed frame 41 connected to the backlight module.
- the fixed frame 41 includes a frame plate 411, and the frame plate 411 is abutted against the backlight module.
- the end surface of the plastic frame 12 away from the back plate 11 is located at a portion of the display surface of the display panel 51 close to the circumferential edge. In this way, the portion of the display panel 51 close to the circumferential edge can be clamped and fixed by the frame plate 411 of the fixed frame 41 and the third annular step 123 of the plastic frame 12 .
- the fixed frame 41 may also include a baffle 412 connected to the outer peripheral edge of the frame plate 411 , and the baffle 412 may be snap-fastened to the side plate 112 of the back plate 11 through a buckle structure.
- a card slot may be provided on the baffle 412, and a buckle matching the card slot may be provided on the side plate 112 of the back plate 11.
- An embodiment of the present disclosure also provides a display device, including the display module described in any of the previous embodiments.
- the display device can be: a mobile phone, a tablet computer, a television, a monitor, a laptop, a digital photo frame, a navigator, or any other product or component with a display function.
- parallel refers to a state in which the angle formed by two straight lines is -10° or more and less than 10°, and therefore includes a state in which the angle is -5° or more and 5° or less.
- vertical refers to a state where the angle formed by two straight lines is 80° or more and 100° or less, and therefore includes an angle of 85° or more and 95° or less.
- connection means a fixed connection or a detachable connection, or Integrated connection
- installation means a fixed connection or a detachable connection, or Integrated connection
- installation can be directly connected, or indirectly connected through an intermediary, or internal communication between two components.
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Abstract
一种背光模组，包括背板（11）、设于背板（11）一侧并与背板（11）连接的胶框（12）、位于胶框（12）内侧的光源组件（13），以及位于胶框（12）内侧且依次叠设的反射片（14）、导光板（15）和光学膜片组（16）；光源组件（13）包括电路板（131）和设于电路板（131）的第一侧面上的光源（132），光源（132）位于导光板（15）的第一侧边处；导光板（15）包括朝向反射片（14）的第一表面和背离反射片（14）的第二表面；胶框（12）的朝向背板（11）的端面设有第一环形台阶（121）和第二环形台阶（122），反射片（14）的靠近周向边缘的部分通过第一双面胶（21）粘接在第一环形台阶（121）上，反射片（14）还通过第一双面胶（21）与导光板（15）的第一表面的靠近除第一侧边外的其余侧边的部分粘接；导光板（15）的第二表面的靠近周向边缘的部分朝向第二环形台阶（122）设置，导光板的第二表面的靠近第一侧边的部分固定在第二环形台阶（122）上。
Description
本公开实施例涉及但不限于显示技术领域，具体涉及一种背光模组、显示模组及显示装置。
目前，车载显示装置常采用液晶显示装置，一些车载液晶显示装置的背光模组包括胶框、背板、光源、导光板以及光学膜片等，导光板在背光模组内部通常处于活动状态，背光模组整体稳定性不足，影响显示效果。
发明内容
以下是对本文详细描述的主题的概述。本概述并非是为了限制权利要求的保护范围。
本公开实施例提供一种背光模组，包括背板、设于所述背板一侧并与所述背板连接的胶框、位于所述胶框内侧的光源组件，以及位于所述胶框内侧且依次叠设的反射片、导光板和光学膜片组；所述光源组件包括电路板和设于所述电路板的第一侧面上的光源，所述光源位于所述导光板的第一侧边处；所述导光板包括朝向所述反射片的第一表面和背离所述反射片的第二表面；所述胶框的朝向所述背板的端面设有第一环形台阶和第二环形台阶，所述反射片的靠近周向边缘的部分通过第一双面胶粘接在所述第一环形台阶上，所述反射片还通过所述第一双面胶与所述导光板的第一表面的靠近除第一侧边外的其余侧边的部分粘接；所述导光板的第二表面的靠近周向边缘的部分朝向所述第二环形台阶设置，所述导光板的第二表面的靠近第一侧边的部分固定在所述第二环形台阶上。
本公开实施例还提供一种显示模组，包括显示面板和所述的背光模组。
本公开实施例还提供一种显示装置，包括所述的显示模组。
在阅读并理解了附图和详细描述后，可以明白其他方面。
附图用来提供对本公开技术方案的进一步理解，并且构成说明书的一部分，与本公开的实施例一起用于解释本公开的技术方案，并不构成对本公开技术方案的限制。附图中部件的形状和大小不反映真实比例，目的只是示意说明本公开内容。
图1为一些示例性实施例的显示模组的截面结构示意图；
图2为在一些示例性实施例中图1中背光模组的俯视结构示意图；
图3为在一些示例性实施例中图2的背光模组的A’处的局部结构示意图；
图4为图3中胶框的局部结构示意图；
图5为在一些示例性实施例中图2的背光模组的A’处的局部截面结构示意图；
图6为在一些示例性实施例中图2的背光模组的B’处或C’处的局部结构示意图；
图7为图6中去掉第二胶带后的局部结构示意图。
附图标记为：
11、背板，12、胶框，13、光源组件，14、反射片，15、导光板，16、光学膜片组，21、第一双面胶，22、第二双面胶，23、第三双面胶，31、第一胶带，32、第二胶带，41、固定框，51、显示面板，
111、底板，112、侧板，121、第一环形台阶，122、第二环形台阶，123、第三环形台阶，124、过渡面，125、避让槽，126、第一固定台，127、卡槽，128、第二固定台，131、电路板，132、光源，161、第一凸耳，161a、第一光学膜片的第一凸耳，161b、第二光学膜片的第一凸耳，161c、第三光学膜片的第一凸耳，162、第二凸耳，411、框板，412、挡板，
1201、第一边框，1202、第二边框，1203、第三边框，1204、第四边框，
1221、容纳槽。
本领域的普通技术人员应当理解，可以对本公开实施例的技术方案进行修改或者等同替换，而不脱离本公开实施例技术方案的精神和范围，均应涵盖在本公开的权利要求范围当中。
本公开实施例提供一种背光模组，在一些示例性实施例中，如图1所示，图1为一些示例性实施例的显示模组的截面结构示意图，所述背光模组包括背板11、设于所述背板11一侧并与所述背板11连接的胶框12、位于所述胶框12内侧的光源组件13，以及位于所述胶框12内侧且依次叠设的反射片14、导光板15和光学膜片组16；
所述光源组件13包括电路板131和设于所述电路板131的第一侧面上的光源132，所述光源132位于所述导光板15的第一侧边处；所述导光板15包括朝向所述反射片14的第一表面和背离所述反射片14的第二表面；
所述胶框12的朝向所述背板11的端面设有第一环形台阶121和第二环形台阶122，所述反射片14的靠近周向边缘的部分通过第一双面胶21粘接在所述第一环形台阶121上，所述反射片14还通过所述第一双面胶21与所述导光板15的第一表面的靠近除第一侧边外的其余侧边的部分粘接；
所述导光板15的第二表面的靠近周向边缘的部分朝向所述第二环形台阶122设置，所述导光板15的第二表面的靠近第一侧边的部分固定在所述第二环形台阶122上。
本公开实施例的背光模组，通过胶框12上设置的第一环形台阶121和第二环形台阶122可以分别对反射片14和导光板15进行限位和固定，通过第一双面胶21将反射片14固定在第一环形台阶121上，并将反射片14与导光板15的第一表面的靠近除第一侧边外的其余侧边的部分粘接，且导光板15的第二表面的靠近第一侧边的部分固定在第二环形台阶122上，如此，将反射片14、导光板15和胶框12固定在一起形成一个整体，可以防止导光板15和反射片14在背光模组内部活动，有利于增强背光模组整体的稳定性，且便于背光模组的组装。
在一些示例性实施例中，如图1所示，所述第二环形台阶122上可以设有容纳槽1221，所述电路板131的背离所述光源132的侧面通过第二双面胶 22粘接在所述容纳槽1221内，所述导光板15的第二表面的靠近第一侧边的部分通过第三双面胶23与所述电路板131的第一侧面粘接，如图1中B处所示。
本实施例中，将光源组件13固定在胶框12上，并将导光板15的第二表面的靠近第一侧边的部分固定在光源组件13的电路板131上，如此可以使得光源组件13、反射片14、导光板15和胶框12固定在一起形成一个整体，便于与背板11组装，并且可以增强背光模组整体的稳定性。将光源组件13的电路板131设置在所述容纳槽1221内，可以使电路板131的第一侧面与第二环形台阶122的表面大致平齐，避免不平坦表面对导光板15造成损伤。
示例性地，如图2所示，图2为在一些示例性实施例中图1中背光模组的俯视结构示意图，所述胶框12可以为矩形，所述胶框12可以包括相对的第一边框1201和第二边框1202，以及相对的第三边框1203和第四边框1204。相应地，所述反射片14和导光板15的形状可以均为矩形，所述导光板15和所述反射片14均包括相对的第一侧边和第二侧边，以及相对的第三侧边和第四侧边，所述导光板15的第一侧边、第二侧边、第三侧边和第四侧边分别靠近所述胶框12的第一边框1201、第二边框1202、第三边框1203和第四边框1204设置。如图1和图2所示，所述容纳槽1221可以设置在所述第一边框1201上，所述电路板131可以为长条状的柔性电路板或硬质电路板，所述容纳槽1221可以沿所述第一边框1201的长度方向延伸。所述反射片14的靠近周向边缘(四个侧边)的部分通过第一双面胶21粘接在所述第一环形台阶121上，所述反射片14还通过所述第一双面胶21与所述导光板15的第一表面的靠近第二侧边、第三侧边和第四侧边的部分粘接，如图1中A处所示，所述导光板15的第一表面的靠近第一侧边的部分不与反射片14粘接，如图1中C处所示。
在其他实施方式中，所述导光板的第二表面的靠近第一侧边的部分可以通过第四双面胶粘接在所述第二环形台阶上。所述胶框包括连接在所述第一环形台阶和所述第二环形台阶之间的过渡面，所述光源组件的电路板的背离所述光源的侧面可以通过双面胶固定在所述过渡面上。
在一些示例性实施例中，如图1所示，所述胶框12包括连接在所述第一 环形台阶121和所述第二环形台阶122之间的过渡面124；所述光源132位于所述导光板15的第一侧边和所述过渡面124之间，所述导光板15的第一侧边与所述过渡面124之间的距离大于所述导光板15的其余侧边与所述过渡面124之间的距离。这样，可以在导光板15的第一侧边与所述过渡面124之间有足够空间来容纳光源组件13，并且便于第一双面胶21将导光板15的第一表面的靠近除第一侧边外的其余侧边的部分与反射片14粘接。
在一些示例性实施例中，如图1所示，所述胶框12的背离所述背板11的端面可以设有第三环形台阶123，所述第三环形台阶123设置为对显示面板51的背离显示侧的表面的靠近周向边缘的部分进行限位。
在一些示例性实施例中，如图1所示，所述背板11可以包括底板111和设于所述底板111的周向边缘的侧板112，所述侧板112围设在所述胶框12的外侧。示例性地，所述胶框12可以与所述侧板112通过卡扣卡接配合，以将胶框12与背板11固定在一起。
在一些示例性实施例中，如图1所示，所述光学膜片组16可以包括叠设的多个光学膜片。示例性地，所述光学膜片组16可以包括叠设的三个光学膜片，沿远离所述导光板15的方向，三个光学膜片可以依次是扩散片、第一棱镜片和第二棱镜片，所述扩散片可以将导光板15的第二表面射出的光线更加均匀化，第一棱镜片和第二棱镜片可以将从扩散片射出的光线向正视方向汇聚，起到增亮作用。在其他实施方式中，所述光学膜片组的光学膜片的数量可以是三个以上等。
在一些示例性实施例中，如图3、图4和图5所示，图3为在一些示例性实施例中图2的背光模组的A’处的局部结构示意图，图4为图3中胶框的局部结构示意图，图5为在一些示例性实施例中图2的背光模组的A’处的局部截面结构示意图，所述光学膜片组16包括叠设的多个光学膜片，所述胶框12的至少一个边框上设有避让槽125，每个所述光学膜片的靠近所述避让槽125的侧边设有第一凸耳161，每个所述光学膜片的第一凸耳161伸入所述避让槽125内并通过第一胶带31固定在所述避让槽125内。
本实施例的一个示例中，如图3、图4和图5所示，所述胶框12上在所述避让槽125的两侧均设置有一个第一固定台126，所述第一胶带31设有朝 向所述光学膜片的粘接面，所述第一胶带31的粘接面设有阶梯结构，所述第一胶带31的两端分别粘接在两个所述第一固定台126上，所述阶梯结构的每个台阶与对应的一个所述第一凸耳161粘接，从而将每个光学膜片的第一凸耳161固定在所述避让槽125内。示例性地，所述避让槽125可以设于所述第三环形台阶123处，所述第一固定台126的与第一胶带31粘接的表面可以低于所述第三环形台阶123的背离所述导光板15的表面，所述第一胶带31的背离粘接面的表面可以与所述第三环形台阶123的背离所述导光板15的表面大致平齐。
示例性地，如图3和图5所示，多个所述第一凸耳可以层叠设置，相邻两个所述光学膜片中，远离所述导光板的光学膜片的第一凸耳将靠近所述导光板的光学膜片的第一凸耳部分地暴露出。以光学膜片组16包括三个光学膜片为例，沿远离所述导光板15的方向，三个光学膜片依次是第一光学膜片、第二光学膜片和第三光学膜片，第二光学膜片的第一凸耳161b将第一光学膜片的第一凸耳161a部分地暴露出，第三光学膜片的第一凸耳161c将第二光学膜片的第一凸耳161b部分地暴露出；第一光学膜片的第一凸耳161a的暴露部分、第二光学膜片的第一凸耳161b的暴露部分以及第三光学膜片的第一凸耳161c形成台阶状，从而与第一胶带31的所述阶梯结构的每个台阶对应粘接。可以在所述胶框12的一个边框上设置避让槽125，所述避让槽125可以沿所述避让槽125所在的胶框12的一个边框的长度方向延伸。
在一些示例性实施例中，如图6和图7所示，图6为在一些示例性实施例中图2的背光模组的B’处或C’处的局部结构示意图，图7为图6中去掉第二胶带后的局部结构示意图，所述光学膜片组16包括叠设的多个光学膜片，所述胶框12的至少一个边框上设有卡槽127，每个所述光学膜片的靠近所述卡槽127的侧边设有第二凸耳162，多个所述第二凸耳162层叠设置并伸入所述卡槽127内。本实施例中，所述卡槽127与多个所述第二凸耳162配合，可以起到对每个所述光学膜片进行限位的作用。
示例性地，如图6和图7所示，所述胶框12上在所述卡槽127的两侧可以均设置有第二固定台128，所述第二固定台128上粘接有第二胶带32，所述第二胶带32跨过所述卡槽127并位于所述多个第二凸耳162的背离所述导 光板15的一侧，所述第二胶带32与所述第二凸耳162不粘接。所述第二胶带32可以起到限位作用，防止多个所述第二凸耳162从所述卡槽127内跳出，所述第二胶带32与所述第二凸耳162不粘接，这样所述光学膜片在发生热膨胀时不会因为完全被固定而导致变形。
示例性地，如图6和图7所示，可以在所述胶框12的一个边框上设置一个或多个卡槽127，多个所述第二凸耳162的大小可以相同或不同。所述卡槽127可以设于所述第三环形台阶123处，所述第二固定台128的与第二胶带32粘接的表面可以低于所述第三环形台阶123的背离所述导光板15的表面，所述第二胶带32的背离粘接面的表面可以与所述第三环形台阶123的背离所述导光板15的表面大致平齐。所述卡槽和所述避让槽可以分别设置在所述胶框的不同边框上，比如，如图2所示，所述避让槽可以设置在所述胶框12的第三边框1203上，所述卡槽设置在所述胶框12的第四边框1204上。
本公开实施例还提供一种显示模组，所述显示模组包括显示面板和前文任一项所述的背光模组。
本实施例的一个示例中，如图1所示，所述胶框12的背离所述背板11的端面可以设有第三环形台阶123，所述显示面板51位于所述胶框12内侧，且所述显示面板51的背离显示侧的表面的靠近周向边缘的部分朝向所述第三环形台阶123设置。示例性地，可以在所述第三环形台阶123上设置双面胶以固定所述显示面板51，或者所述显示面板51可以不与所述第三环形台阶123固定，可以在所述第三环形台阶123上设置缓冲层，以保护所述显示面板51。所述显示面板51可以为液晶显示面板等。
示例性地，如图1所示，所述显示模组还可以包括与所述背光模组连接的固定框41，所述固定框41包括框板411，所述框板411抵接于所述胶框12的背离所述背板11的端面上，并位于所述显示面板51的显示面的靠近周向边缘的部分处。这样，通过固定框41的所述框板411和胶框12的所述第三环形台阶123可以将所述显示面板51的靠近周向边缘的部分夹持固定。示例性地，所述固定框41还可以包括与所述框板411的外周边缘连接的挡板412，所述挡板412可以与所述背板11的侧板112通过卡扣结构卡接固定，比如可以在所述挡板412上设置卡槽，所述背板11的侧板112上设置与所述 卡槽配合的卡扣。
本公开实施例还提供一种显示装置，包括前文任一实施例所述的显示模组。显示装置可以为：手机、平板电脑、电视机、显示器、笔记本电脑、数码相框、导航仪等任何具有显示功能的产品或部件。
在附图中，有时为了明确起见，夸大表示了构成要素的大小、层的厚度或区域。因此，本公开的实施方式并不一定限定于该尺寸，附图中每个部件的形状和大小不反映真实比例。此外，附图示意性地示出了一些例子，本公开的实施方式不局限于附图所示的形状或数值。
在本文描述中，“平行”是指两条直线形成的角度为-10°以上且10°以下的状态，因此，包括该角度为-5°以上且5°以下的状态。另外，“垂直”是指两条直线形成的角度为80°以上且100°以下的状态，因此，包括85°以上且95°以下的角度的状态。
在本说明书中，为了方便起见，使用“中部”、“上”、“下”、“前”、“后”、“竖直”、“水平”、“顶”、“底”、“内”、“外”等指示方位或位置关系的词句以参照附图说明构成要素的位置关系，仅是为了便于描述本说明书和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本公开的限制。构成要素的位置关系根据描述各构成要素的方向适当地改变。因此，不局限于在说明书中说明的词句，根据情况可以适当地更换。
在本文描述中，除非另有明确的规定和限定，术语“连接”、“固定连接”、“安装”、“装配”应做广义理解，例如，可以是固定连接，或是可拆卸连接，或一体地连接；术语“安装”、“连接”、“固定连接”可以是直接相连，或通过中间媒介间接相连，或是两个元件内部的连通。对于本领域的普通技术人员而言，可以根据情况理解上述术语在本公开实施例中的含义。
Claims (15)
- 一种背光模组，包括背板、设于所述背板一侧并与所述背板连接的胶框、位于所述胶框内侧的光源组件，以及位于所述胶框内侧且依次叠设的反射片、导光板和光学膜片组；所述光源组件包括电路板和设于所述电路板的第一侧面上的光源，所述光源位于所述导光板的第一侧边处；所述导光板包括朝向所述反射片的第一表面和背离所述反射片的第二表面；所述胶框的朝向所述背板的端面设有第一环形台阶和第二环形台阶，所述反射片的靠近周向边缘的部分通过第一双面胶粘接在所述第一环形台阶上，所述反射片还通过所述第一双面胶与所述导光板的第一表面的靠近除第一侧边外的其余侧边的部分粘接；所述导光板的第二表面的靠近周向边缘的部分朝向所述第二环形台阶设置，所述导光板的第二表面的靠近第一侧边的部分固定在所述第二环形台阶上。
- 如权利要求1所述的背光模组，其中，所述第二环形台阶上设有容纳槽，所述电路板的背离所述光源的侧面通过第二双面胶粘接在所述容纳槽内，所述导光板的第二表面的靠近第一侧边的部分通过第三双面胶与所述电路板的第一侧面粘接。
- 如权利要求1所述的背光模组，其中，所述导光板的第二表面的靠近第一侧边的部分通过第四双面胶粘接在所述第二环形台阶上。
- 如权利要求1所述的背光模组，其中，所述胶框包括连接在所述第一环形台阶和所述第二环形台阶之间的过渡面；所述光源位于所述导光板的第一侧边和所述过渡面之间，所述导光板的第一侧边与所述过渡面之间的距离大于所述导光板的其余侧边与所述过渡面之间的距离。
- 如权利要求1所述的背光模组，其中，所述光学膜片组包括叠设的多个光学膜片，所述胶框的至少一个边框上设有避让槽，每个所述光学膜片的靠近所述避让槽的侧边设有第一凸耳，每个所述光学膜片的第一凸耳伸入所述避让槽内并通过第一胶带固定在所述避让槽内。
- 如权利要求5所述的背光模组，其中，所述胶框上在所述避让槽的两侧均设置有一个第一固定台，所述第一胶带设有朝向所述光学膜片的粘接面，所述第一胶带的粘接面设有阶梯结构，所述第一胶带的两端分别粘接在两个所述第一固定台上，所述阶梯结构的每个台阶与对应的一个所述第一凸耳粘接。
- 如权利要求5所述的背光模组，其中，多个所述第一凸耳层叠设置，相邻两个所述光学膜片中，远离所述导光板的光学膜片的第一凸耳将靠近所述导光板的光学膜片的第一凸耳部分地暴露出。
- 如权利要求1所述的背光模组，其中，所述光学膜片组包括叠设的多个光学膜片，所述胶框的至少一个边框上设有卡槽，每个所述光学膜片的靠近所述卡槽的侧边设有第二凸耳，多个所述第二凸耳层叠设置并伸入所述卡槽内。
- 如权利要求8所述的背光模组，其中，所述胶框上在所述卡槽的两侧均设置有第二固定台，所述第二固定台上粘接有第二胶带，所述第二胶带跨过所述卡槽并位于所述多个第二凸耳的背离所述导光板的一侧，所述第二胶带与所述第二凸耳不粘接。
- 如权利要求1所述的背光模组，其中，所述胶框的背离所述背板的端面设有第三环形台阶，所述第三环形台阶设置为对显示面板的背离显示侧的表面的靠近周向边缘的部分进行限位。
- 如权利要求1所述的背光模组，其中，所述背板包括底板和设于所述底板的周向边缘的侧板，所述侧板围设在所述胶框的外侧。
- 一种显示模组，包括显示面板和权利要求1至11任一项所述的背光模组。
- 如权利要求12所述的显示模组，其中，所述胶框的背离所述背板的端面设有第三环形台阶，所述显示面板位于所述胶框内侧，且所述显示面板的背离显示侧的表面的靠近周向边缘的部分朝向所述第三环形台阶设置。
- 如权利要求13所述的显示模组，还包括与所述背光模组连接的固定框，所述固定框包括框板，所述框板抵接于所述胶框的背离所述背板的端面 上，并位于所述显示面板的显示面的靠近周向边缘的部分处。
- 一种显示装置，包括权利要求12至14任一项所述的显示模组。
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030054879A (ko) * | 2001-12-26 | 2003-07-02 | 엘지.필립스 엘시디 주식회사 | 액정표시모듈 |
| CN102606943A (zh) * | 2012-02-17 | 2012-07-25 | 友达光电（苏州）有限公司 | 一种背光模组 |
| CN204423815U (zh) * | 2014-12-23 | 2015-06-24 | 厦门天马微电子有限公司 | 一种显示装置 |
| CN105044983A (zh) * | 2015-08-17 | 2015-11-11 | 武汉华星光电技术有限公司 | 一种背光模组和液晶显示装置 |
| CN106154615A (zh) * | 2016-09-22 | 2016-11-23 | 青岛海信电器股份有限公司 | 一种液晶模组及液晶显示装置 |
| CN107102478A (zh) * | 2017-06-30 | 2017-08-29 | 武汉华星光电技术有限公司 | 液晶显示器及其背光模组 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030054879A (ko) * | 2001-12-26 | 2003-07-02 | 엘지.필립스 엘시디 주식회사 | 액정표시모듈 |
| CN102606943A (zh) * | 2012-02-17 | 2012-07-25 | 友达光电（苏州）有限公司 | 一种背光模组 |
| CN204423815U (zh) * | 2014-12-23 | 2015-06-24 | 厦门天马微电子有限公司 | 一种显示装置 |
| CN105044983A (zh) * | 2015-08-17 | 2015-11-11 | 武汉华星光电技术有限公司 | 一种背光模组和液晶显示装置 |
| CN106154615A (zh) * | 2016-09-22 | 2016-11-23 | 青岛海信电器股份有限公司 | 一种液晶模组及液晶显示装置 |
| CN107102478A (zh) * | 2017-06-30 | 2017-08-29 | 武汉华星光电技术有限公司 | 液晶显示器及其背光模组 |
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