WO2018157574A1 - 背光模组及其结构调整方法、显示设备 - Google Patents
背光模组及其结构调整方法、显示设备 Download PDFInfo
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- WO2018157574A1 WO2018157574A1 PCT/CN2017/101148 CN2017101148W WO2018157574A1 WO 2018157574 A1 WO2018157574 A1 WO 2018157574A1 CN 2017101148 W CN2017101148 W CN 2017101148W WO 2018157574 A1 WO2018157574 A1 WO 2018157574A1
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- WIPO (PCT)
- Prior art keywords
- adjustment
- backlight module
- diaphragm
- display unit
- adjusting
- Prior art date
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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
- G02F1/133608—Direct backlight including particular frames or supporting means
-
- 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
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
Definitions
- the present disclosure relates to, but is not limited to, a liquid crystal display technology, and more particularly to a backlight module, a structure adjustment method of a backlight module, and a display device.
- liquid crystal display uses the electric field to control the liquid crystal rotation to realize gray scale display, and then realize color display by color film. It has excellent performances such as thinness, light weight, low power consumption, and has long been used in computers, televisions, and mobile terminal devices.
- the touch screen came into being.
- the most widely covered technology on the market is the transmissive capacitive touch technology, which includes G/G (using two substrate glasses, one of which realizes the touch panel function). , another to achieve protection), G / FF (touch panel function into two polyester diaphragms, and protected by a glass substrate), OGS (One Glass Solution, integrated) touch, Oncell (embed the touch screen
- the diaphragm structure in terms of the length, width and height of the diaphragm
- Incell the function of embedding the touch panel into the liquid crystal pixel
- the matching gap (including the distance between the diaphragm and the side wall of the frame and the distance between the diaphragm and the display unit) often needs to be adjusted to meet the final product requirements; in the past, during the design process, the diaphragm structure and The matching gap will involve the adjustment of the plastic frame structure. It is necessary to repair the plastic frame mold or even reopen the mold, which will undoubtedly increase the product development cycle and development cost.
- the shape of some liquid crystal display devices can be shared.
- the size adjustment of the diaphragm the thickness adjustment of the display unit, the adjustment of the display unit and the diaphragm gap, the adjustment of the gap between the diaphragm and the side wall of the plastic frame, etc. (the plastic frame needs to be repaired or even re-opened, resulting in verification and size import.
- the time is longer, and the edges of the display unit are also prone to problems such as bright edges (bright areas) and edge shadows (dark areas).
- the present disclosure provides a backlight module, which realizes the sharing of the plastic frame, saves the cost and schedule of the plastic frame repairing and the newly opened mold, and is beneficial to the rapid verification of the backlight module structure. And adjustment, real The purpose of rapid development of low-cost products.
- the present disclosure provides a backlight module including a plastic frame, a diaphragm, and a tab.
- the plastic frame has a box shape and is open at the top, and has a side wall and a bottom wall.
- the space enclosed by the side wall and the bottom wall is a mounting groove.
- the diaphragm is disposed on the bottom wall and is received in the mounting groove.
- the adjusting piece is disposed inside the side wall of the mounting groove.
- the tab includes a vertical portion and a horizontal portion, the vertical portion has a first set distance between the diaphragm, and the outer end surface of the horizontal portion has a second portion between the diaphragm and the diaphragm. Set the distance.
- a fixing slot is disposed on an inner side of the top wall of the mounting slot, and the horizontal portion is fitted in the limiting slot.
- the plastic frame has a rectangular parallelepiped shape and has four side walls, and the adjusting piece includes three.
- the three adjusting pieces are correspondingly disposed on three sidewalls of the plastic frame, and are located in the middle.
- the tabs are in contact with the tabs on both sides.
- the plastic frame has a rectangular parallelepiped shape and has four side walls, and the adjusting piece includes three.
- the three adjusting pieces are correspondingly disposed on three sidewalls of the plastic frame, and are located in the middle.
- the tabs are in contact with the tabs on both sides.
- the plastic frame is of a one-piece construction.
- the adjustment sheet has light absorption regions with different absorbances.
- the present invention further provides a display device comprising the backlight module and the display unit according to any of the above embodiments, wherein the display unit is disposed on a top end surface of the adjustment piece.
- the invention also provides a structure adjustment method of a backlight module, which comprises a plastic frame, a diaphragm and an adjustment piece.
- the plastic frame has a box shape and is open at the top, and has a side wall and a bottom wall. The space enclosed by the side wall and the bottom wall is a mounting groove.
- the diaphragm is disposed on the bottom wall and is received in the mounting groove.
- the adjusting piece is disposed inside the side wall of the mounting groove.
- the structure adjustment method of the backlight module is to adapt to the adjustment of the diaphragm size, the adjustment of the second set distance, the adjustment of the size of the display unit, and/or the adjustment of the first set distance by changing the size of the tab.
- the thickness of the horizontal portion of the tab is changed to accommodate the adjustment of the thickness of the diaphragm, the adjustment of the second set distance, and/or the adjustment of the thickness of the display unit; and the length of the diaphragm is adapted by changing the width of the vertical portion of the tab. Adjustment, adjustment of the diaphragm width, adjustment of the first set distance, adjustment of the length of the display unit, and/or adjustment of the width of the display unit.
- the bright and dark regions at the edges of the display unit are adjusted by changing the absorbance of the light absorbing region on the vertical portion of the tab.
- the backlight module provided by the present invention has the adjusting piece mounted on the side wall of the plastic frame, and the size of the plastic frame can be changed by adjusting the width of the adjusting piece, and the size change of the film is adapted to avoid the plastic frame.
- the mold module is remodeled or re-opened to achieve the sharing of the plastic frame, and the backlight module can better realize the quick verification assembly and perform the temperature and humidity verification more quickly.
- the height or width of the tab can also be adapted to the adjustment of the size of the display unit, so that the backlight module after changing the size is quickly introduced into the assembly, and the temperature and humidity verification of the backlight module can be quickly realized.
- the adjustment of the size of the adjustment piece can be realized.
- the degree of plastic frame sharing eliminates the need to modify the mold frame and re-open the mold, effectively reducing the product development cycle and development costs.
- the color of each light absorbing area on the vertical portion of the adjusting piece can be correspondingly set according to the bright area and the dark area at the edge of the display unit to increase the absorption or reflection of the side light, thereby solving the bright area and the darkness at the edge of the display unit.
- the area problem is such that the brightness at the edge of the display unit coincides with the brightness at the center.
- FIG. 1 is a cross-sectional structural view of a backlight module according to an embodiment of the invention.
- FIG. 2 is a top plan view of the backlight module shown in FIG. 1;
- FIG. 3 is a cross-sectional structural view of a plastic frame in the backlight module of FIG. 1;
- FIG. 4 is a cross-sectional structural view of a display device according to another embodiment of the present invention.
- a backlight module, a structure adjustment method thereof, and a display device are described below with reference to the accompanying drawings.
- the backlight module provided by the present disclosure includes a plastic frame 1 , a diaphragm 2 and a tab 3 .
- the plastic frame 1 has a box shape and is open at the top, and has a side wall and a bottom wall. The space enclosed by the side wall and the bottom wall is a mounting groove. As shown in FIG. 2, in this embodiment, the plastic frame 1 has a rectangular parallelepiped shape and has four side walls 13 and one bottom wall 14.
- the diaphragm 2 is disposed on the bottom wall 14 and received in the mounting groove 11.
- the tab 3 is located in the mounting groove 11 and is disposed at a side wall of the mounting groove 11.
- the adjusting piece 3 is installed at the side wall of the plastic frame 1.
- the width of the adjusting piece 3 the size of the mounting groove 11 can be changed to adapt to the dimensional change of the diaphragm 2, and the plastic frame can be prevented from being modified or re-opened to realize the glue.
- the backlight module can better realize the quick verification assembly and perform the temperature and humidity verification more quickly.
- the adjusting piece 3 includes a vertical portion 31 and a horizontal portion 32, and the vertical portion 31 and the diaphragm 2 have a first set distance L1.
- the outer end surface of the horizontal portion 32 and the diaphragm 2 have a second set distance L2.
- the edge of the display unit 4 abuts on the outer end surface of the horizontal portion 32, and the distance between the display unit 4 and the diaphragm 2 is the second set distance. L2.
- the backlight module provided by the present invention adapts the adjustment of the size of the diaphragm 2, the adjustment of the second set distance L2, and/or the adjustment of the first set distance L1 by changing the height or width of the tab 3, and is made into a display.
- the device can also adapt to the adjustment of the size of the display unit 4, so that the changed backlight module can be quickly introduced into the assembly, and the temperature and humidity of the backlight module can be quickly verified.
- adjusting the size of the adjustment piece 3 a certain degree of plastic frame 1 sharing can be realized, and the plastic frame is not required to be repaired and re-opened, thereby effectively reducing the product development cycle and development cost.
- the top side of the three side walls 13 of the plastic frame 1 is respectively provided with a limiting slot 12, and the vertical portion 31 is located in the mounting slot 11, preferably in the same place.
- the shape of the horizontal portion 32 coincides with the shape of the limiting groove 12 on the bottom wall of the mounting groove 11, and fits in the limiting groove 12, preferably against the bottom wall of the limiting groove 12.
- the tab 3 may also be in the form of a strip, and the object of the present application may be achieved.
- the purpose of the present invention is not deviated from the design idea of the present invention, and details are not described herein, and should be protected by the present application. Within the scope.
- the plastic frame 1 has a rectangular parallelepiped shape and has four side walls 13.
- the mounting groove 11 defined by the four side walls 13 and one bottom wall is a rectangular groove.
- the adjusting piece 3 and the limiting slot 12 each include three, and the three adjusting pieces 3 are correspondingly disposed on three of the four side walls 13 of the plastic frame 1 (with the limiting slot 12)
- the three side walls), and the adjusting piece 3 in the middle abuts the adjusting piece 3 on both sides, and the light source on the side wall of the mounting groove 11 where the adjusting piece 3 is not disposed, the infinite slot on the side wall 13 12.
- the plastic frame 1 is of a one-piece construction.
- the adjustment sheet 3 has light absorption regions with different absorbances.
- each light absorbing area of the adjusting piece 3 can be correspondingly set according to the bright area and the dark area at the edge of the display unit 4 to increase the absorption or reflection of the side light, thereby solving the bright and dark areas at the edge of the display unit 4.
- the problem is that the brightness at the edge of the display unit 4 coincides with the brightness at the center.
- the display device provided by the present invention includes the backlight module described in any of the above embodiments.
- the display device provided by the present invention has all the advantages of the backlight module of any of the above embodiments, and details are not described herein again.
- the display device further includes a display unit 4 located at a slot of the mounting slot 11 and abutting against an outer end surface of the tab 3.
- the display device provided by the present invention adapts the adjustment of the size of the display unit 4 by changing the height or width of the adjustment piece 3, and enables the backlight module to be quickly introduced and assembled after the temperature and humidity requirements of the backlight module are satisfied. There is no need to repair and re-mold the plastic frame, which effectively reduces the product development cycle and development cost.
- the structure adjustment method (not shown) of the backlight module provided by the present invention adapts to the adjustment of the diaphragm size, the adjustment of the second set distance, the adjustment of the size of the display unit, and/or the A set distance adjustment.
- the thickness of the horizontal portion of the tab is changed to accommodate the adjustment of the thickness of the diaphragm, the adjustment of the second set distance, and/or the adjustment of the thickness of the display unit;
- the length of the diaphragm is adapted to the length of the diaphragm by changing the width of the vertical portion of the tab. Adjustment, adjustment of the diaphragm width, adjustment of the first set distance, adjustment of the length of the display unit, and/or adjustment of the width of the display unit.
- the horizontal portion of the adjustment piece can be adjusted within a design safety range that satisfies the second set distance.
- the thickness of the existing backlight module needs to be reduced by 0.03mm, but the existing optical design has met the demand, and it can be measured that the size of the second set distance is reduced by 0.03mm (the changed The second set distance still satisfies the optical design requirement), that is, the optical design of the backlight module structure is not changed by reducing the thickness of the horizontal portion of the tab by 0.03.
- the width of the vertical portion of the tab can be adjusted within a design safety range satisfying the first set distance; for example, the width F2 width of the existing product is reduced by 0.03 mm. It is confirmed that the size of the existing first set distance has satisfied the design, and the width of the vertical portion of the corresponding tab can be increased by 0.03 mm, thereby realizing that the optical design of the backlight module structure is not changed.
- the first set distance and the second set distance may be adjusted correspondingly by adjusting the thickness of the horizontal portion of the tab and the width of the vertical portion, and adjusting the tab according to the change in the size of the diaphragm. Thickness of the horizontal part The width of the degree and the vertical portion are used to quickly verify the optical design of the backlight module.
- the bright and dark areas at the edges of the display unit are adjusted by changing the absorbance of the light absorbing area on the vertical portion of the tab such that the brightness at the edge of the display unit coincides with the brightness at the center.
- the brightness of the edge of the display unit is too high, which causes bright spots on the edge of the display screen.
- the color of the area corresponding to the bright spot on the surface of the film in the vertical part of the adjustment piece can be black, and the adjustment piece on the bright spot is added.
- the light absorption between the edges of the display unit reduces the exposure of the light, reduces the brightness of the edge of the display unit, and overcomes the bad edge.
- the backlight module provided by the present invention has the adjusting piece mounted on the side wall of the plastic frame, and the width of the plastic frame can be changed by adjusting the width of the adjusting piece, and the size change of the film is adapted to avoid the repair of the plastic frame.
- the mold or re-opening mold realizes the sharing of the plastic frame, and the backlight module can better realize the quick verification assembly and perform the temperature and humidity verification more quickly.
- the height or width of the tab can also be adapted to the adjustment of the size of the display unit, so that the backlight module after changing the size is quickly introduced into the assembly, and the temperature and humidity verification of the backlight module can be quickly realized.
- the adjustment of the size of the adjustment piece can achieve a certain degree.
- the plastic frame is shared, no need to modify the mold frame and re-open the mold, which effectively reduces the product development cycle and development cost.
- the color of each light absorbing area of the adjusting piece can be correspondingly set according to the bright area and the dark area at the edge of the display unit to increase the absorption or reflection of the side light, thereby solving the problem of the bright area and the dark area at the edge of the display unit, so that The brightness at the edge of the display unit coincides with the brightness at the center.
- connection may be a fixed connection, a detachable connection, or an integral Connections; they can be connected directly or indirectly through intermediate media.
- connecting may be a fixed connection, a detachable connection, or an integral Connections; they can be connected directly or indirectly through intermediate media.
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Abstract
Description
Claims (10)
- 一种背光模组,其特征在于,包括:胶框,呈箱形,顶部开口,具有侧壁和底壁,,所述侧壁和底壁围成的空间为一安装槽;膜片,设置在所述底壁上,并容置于所述安装槽内;和调整片,设置于所述安装槽的侧壁内侧。
- 根据权利要求1所述的背光模组,其特征在于,所述调整片包括垂直部和水平部,所述垂直部与所述膜片之间具有第一设定距离,所述水平部的外端面与所述膜片之间具有第二设定距离。
- 根据权利要求2所述的背光模组,其特征在于,所述安装槽的侧壁顶部内侧设置有限位槽,所述水平部配合于所述限位槽内。
- 根据权利要求3所述的背光模组,其特征在于,所述胶框为长方体形,具有四个侧壁,所述调整片包括三个,三个所述调整片对应设置在所述胶框的三个侧壁上,且位于中间的调整片与位于两侧的调整片均相抵接。
- 根据权利要求1至4中任一项所述的背光模组,其特征在于,所述胶框为一体式构造。
- 根据权利要求1至4中任一项所述的背光模组,其特征在于,所述调整片上具有不同吸光度的吸光区域。
- 一种显示设备,其特征在于,包括有如权利要求1至6中任一项所述的背光模组和显示单元,所述显示单元设置于所述调整片的顶端面上。
- 一种背光模组的结构调整方法,所述背光模组包括:胶框,呈箱形,顶部开口,具有侧壁和底壁,所述侧壁和底壁围成的空间为一安装槽;膜片,设置在所述底壁上,并容置于所述安装槽内;和调整片,设置于所述安装槽的侧壁内侧,所述调整片包括垂直部和水平部,所述垂直部与所述膜片之间具有第一设定距离,所述水平部的外端面与所述膜片之间具有第二设定距离,所述的背光模组的结构调整方法是:通过改变调整片的尺寸来适应膜片尺寸的调整、第二设定距离的调整、显示单元尺寸的调整和/或第一设定距离的调整。
- 根据权利要求8所述的背光模组的结构调整方法,其特征在于,通过改变调整片水平部的厚度来适应膜片厚度的调整、第二设定距离的调整、和/或显示单元厚度的调整;通过改变调整片垂直部的宽度来适应膜片长度的调整、膜片宽度的调整、第一设定距离的调整、显示单元长度的调整、和/或显示单元宽度的调整。
- 根据权利要求8所述的背光模组的结构调整方法,其特征在于,通过改变调整片垂直部上吸光区域的吸光度来调整显示单元边缘处的亮区和暗区。
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US15/758,731 US20190033661A1 (en) | 2017-02-28 | 2017-09-09 | Backlight module assembly, structural adjustment method thereof and display device |
US16/820,771 US11126036B2 (en) | 2017-02-28 | 2020-03-17 | Backlight module assembly, structural adjustment method thereof and display device |
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CN201710113620.X | 2017-02-28 | ||
CN201710113620.XA CN107065300B (zh) | 2017-02-28 | 2017-02-28 | 一种背光模组及其结构调整方法、显示设备 |
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US15/758,731 A-371-Of-International US20190033661A1 (en) | 2017-02-28 | 2017-09-09 | Backlight module assembly, structural adjustment method thereof and display device |
US16/820,771 Continuation US11126036B2 (en) | 2017-02-28 | 2020-03-17 | Backlight module assembly, structural adjustment method thereof and display device |
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CN114527601B (zh) * | 2022-03-03 | 2023-08-22 | 武汉华星光电技术有限公司 | 背光模组和显示面板 |
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CN104763944B (zh) * | 2015-04-24 | 2017-08-29 | 京东方科技集团股份有限公司 | 背光模组及显示装置 |
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2017
- 2017-02-28 CN CN201710113620.XA patent/CN107065300B/zh active Active
- 2017-09-09 WO PCT/CN2017/101148 patent/WO2018157574A1/zh active Application Filing
- 2017-09-09 US US15/758,731 patent/US20190033661A1/en not_active Abandoned
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2020
- 2020-03-17 US US16/820,771 patent/US11126036B2/en active Active
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CN103543543A (zh) * | 2013-11-05 | 2014-01-29 | 深圳市华星光电技术有限公司 | 无边框液晶显示装置 |
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CN104865748A (zh) * | 2015-06-02 | 2015-08-26 | 武汉华星光电技术有限公司 | 背光模块及具有该背光模块的液晶显示器 |
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CN107065300A (zh) * | 2017-02-28 | 2017-08-18 | 合肥京东方光电科技有限公司 | 一种背光模组及其结构调整方法、显示设备 |
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CN107065300A (zh) | 2017-08-18 |
US20190033661A1 (en) | 2019-01-31 |
CN107065300B (zh) | 2019-12-31 |
US11126036B2 (en) | 2021-09-21 |
US20200218119A1 (en) | 2020-07-09 |
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