CN109633960B - Liquid crystal display module and liquid crystal display device - Google Patents
Liquid crystal display module and liquid crystal display device Download PDFInfo
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- CN109633960B CN109633960B CN201910087749.7A CN201910087749A CN109633960B CN 109633960 B CN109633960 B CN 109633960B CN 201910087749 A CN201910087749 A CN 201910087749A CN 109633960 B CN109633960 B CN 109633960B
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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
- G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
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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
- G02F1/1339—Gaskets; Spacers; Sealing of cells
- G02F1/13394—Gaskets; Spacers; Sealing of cells spacers regularly patterned on the cell subtrate, e.g. walls, pillars
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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
- G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
- G02F1/13332—Front frames
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Liquid Crystal (AREA)
Abstract
The invention provides a liquid crystal display module and a liquid crystal display device. The liquid crystal display module comprises a front frame and a liquid crystal display panel contacted with the front frame; the liquid crystal display panel comprises an upper substrate and a lower substrate which are oppositely arranged; the liquid crystal display panel is provided with a display area and a virtual area surrounding the display area; the front frame comprises a fixed part which is contacted with the part of the upper substrate positioned in the virtual area; a first magnetic part is arranged on one side, facing the fixed part, of the part of the upper substrate, which is positioned in the virtual area; the fixing part is provided with a second magnetic part which is mutually attracted with the first magnetic part on one side of the part of the upper substrate facing the virtual area, the attraction between the first magnetic part and the second magnetic part counteracts the effect of atmospheric pressure, the part of the upper substrate located in the virtual area is prevented from sinking towards the direction close to the lower substrate, the box thickness of the liquid crystal display panel located in the virtual area and the box thickness of the liquid crystal display panel located in the display area tend to be consistent, and the uniformity of the box thickness of the liquid crystal display panel is improved.
Description
Technical Field
The invention relates to the technical field of display, in particular to a liquid crystal display module and a liquid crystal display device.
Background
Thin Film Transistors (TFTs) are the main driving elements in current Liquid Crystal Displays (LCDs) and Active Matrix Organic electroluminescent displays (AMOLEDs), and are directly related to the Display performance of flat panel displays.
Most of the existing liquid crystal displays in the market are backlight liquid crystal displays (lcds), which include a liquid crystal display panel and a backlight module (backlight module). The liquid crystal display panel operates on the principle that liquid crystal molecules are poured between a Thin Film Transistor Array Substrate (TFT Array Substrate) and a Color Filter (CF) Substrate, pixel voltage and common voltage are applied to the two substrates, and the rotation direction of the liquid crystal molecules is controlled by an electric field formed between the pixel voltage and the common voltage, so that light of a backlight module is transmitted out to generate a picture. The liquid crystal display panel forming process generally includes: front Array (Array) process (thin film, yellow light, etching and stripping), middle Cell (TFT substrate and CF substrate) process and back module assembly process (driver IC and printed circuit board pressing). Wherein, the front-stage Array process mainly forms a TFT substrate to control the movement of liquid crystal molecules; the middle Cell process is mainly to add liquid crystal between the TFT substrate and the CF substrate; the back module assembly process mainly drives the integration of IC pressing and printed circuit board, and further drives the liquid crystal molecules to rotate and display images.
At present, the edge of the display area (AA) of the lcd panel often appears a phenomenon of edge whitening (or reddening), and it is found through the measurement of the liquid crystal Cell thickness (Cell Gap), that the Cell Gap in the edge area is divided into an abnormal (NG) area and a normal (OK) area, the Cell Gap in the abnormal area is larger than that in the normal area, and the larger the difference between the maximum Cell Gap in the abnormal area and the Cell Gap in the normal area is, the brighter the edge is, the more serious the display abnormality is.
As shown in fig. 1, by analyzing the in-plane structure of the edge of the display area, it is found that the height and proportion of the support 300 ' (such as PS) in the Dummy (Dummy) area 12 ' are much smaller than those of the support 300 ' in the display area 11 ', when the liquid crystal is subjected to vacuum after cell formation, the upper substrate 100 ' in the Dummy area 12 ' is depressed toward the lower substrate 200 ' by the atmospheric pressure to generate deformation, and the deformation trend is consistent with the height trend of the support 300 ', i.e. the smaller the height of the support 300 ', the greater the deformation trend. Due to the limitation of the process, it is difficult to raise the height and the ratio of the support 300 'in the virtual area 12', and each time the step difference between the virtual area 12 'and the display area 11' is reduced, it puts higher requirements on the process, such as leveling property of the material at the edge, and so on, and thus it is difficult to implement.
Disclosure of Invention
The invention aims to provide a liquid crystal display module which can improve the uniformity of the box thickness of a liquid crystal display panel, improve the peripheral Mura of the liquid crystal display panel and improve the display effect of a product.
The invention also aims to provide a liquid crystal display device which can improve the uniformity of the box thickness of a liquid crystal display panel, improve the Mura at the periphery of the liquid crystal display panel and improve the display effect of a product.
In order to achieve the above object, the present invention provides a liquid crystal display module, including: a front frame and a liquid crystal display panel in contact with the front frame;
the liquid crystal display panel comprises an upper substrate and a lower substrate which are oppositely arranged;
the liquid crystal display panel is provided with a display area and a virtual area surrounding the display area;
the front frame comprises a fixed part which is contacted with the part of the upper substrate positioned in the virtual area;
a first magnetic part is arranged on one side, facing the fixed part, of the part of the upper substrate, which is positioned in the virtual area; and a second magnetic part which is mutually attracted with the first magnetic part is arranged on one side of the part, positioned in the virtual area, of the fixing part facing the upper substrate.
The liquid crystal display panel also comprises a plurality of supports arranged on one side of the lower substrate facing the upper substrate and frame glue arranged between the upper substrate and the lower substrate and surrounding the supports.
The plurality of supports comprise a plurality of first shock insulators positioned in the display area and a plurality of second shock insulators positioned in the virtual area.
The height of the first spacer is greater than that of the second spacer.
The number of the first shock insulators is larger than that of the second shock insulators.
The virtual area is located between the display area and the frame glue.
The liquid crystal display module also comprises a middle frame arranged below the liquid crystal display panel; the middle frame is used for supporting the liquid crystal display panel.
The liquid crystal display module further comprises a backlight module positioned below the liquid crystal display panel.
The upper substrate is a TFT array substrate, and the lower substrate is a CF substrate, or the upper substrate is a CF substrate and the lower substrate is a TFT array substrate.
The invention also provides a liquid crystal display device which comprises the liquid crystal display module.
The invention has the beneficial effects that: the liquid crystal display module comprises a front frame and a liquid crystal display panel contacted with the front frame; the liquid crystal display panel comprises an upper substrate and a lower substrate which are oppositely arranged; the liquid crystal display panel is provided with a display area and a virtual area surrounding the display area; the front frame comprises a fixed part which is contacted with the part of the upper substrate positioned in the virtual area; a first magnetic part is arranged on one side, facing the fixed part, of the part of the upper substrate, which is positioned in the virtual area; the fixing part is provided with a second magnetic part which is mutually attracted with the first magnetic part on one side of the part of the upper substrate facing the virtual area, the attraction between the first magnetic part and the second magnetic part is used for offsetting the effect of atmospheric pressure, the part of the upper substrate located in the virtual area is prevented from sinking towards the direction close to the lower substrate, the box thickness of the liquid crystal display panel located in the virtual area and the box thickness of the liquid crystal display panel located in the display area tend to be consistent, the uniformity of the box thickness of the liquid crystal display panel is improved, the peripheral Mura of the liquid crystal display panel is improved, and the product display effect is improved. The liquid crystal display device can improve the uniformity of the box thickness of the liquid crystal display panel, improve the peripheral Mura of the liquid crystal display panel and improve the display effect of products.
Drawings
For a better understanding of the nature and technical aspects of the present invention, reference should be made to the following detailed description of the invention, taken in conjunction with the accompanying drawings, which are provided for purposes of illustration and description and are not intended to limit the invention.
In the drawings, there is shown in the drawings,
FIG. 1 is a schematic structural diagram of a conventional LCD panel;
FIG. 2 is a schematic structural diagram of a liquid crystal display module according to the present invention.
Detailed Description
To further illustrate the technical means and effects of the present invention, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings.
Referring to fig. 2, the present invention provides a liquid crystal display module, including: a front frame 10 and a liquid crystal display panel 20 in contact with the front frame 10;
the liquid crystal display panel 20 comprises an upper substrate 21 and a lower substrate 22 which are oppositely arranged;
the liquid crystal display panel 20 has a display area 201 and a virtual area 202 surrounding the display area 11;
the front frame 10 includes a fixing portion 11 contacting a portion of the upper substrate 21 located in the dummy area 202;
a first magnetic part 25 is arranged on one side of the upper substrate 21, which is positioned in the virtual area 202 and faces the fixing part 11; the fixing portion 11 is provided with a second magnetic portion 26 attracting the first magnetic portion 25 on a side facing the portion of the upper substrate 21 located in the dummy area 202.
It should be noted that, in the prior art, when the liquid crystal display panel 20 is broken in vacuum after being formed into a cell, the liquid crystal display panel 20 is deformed by the action of atmospheric pressure, that is, the portion of the upper substrate 21 located in the dummy region 202 is recessed toward the lower substrate 22, so that the cell thickness of the liquid crystal display panel 20 located in the dummy region 202 is smaller than the cell thickness of the liquid crystal display panel 20 located in the display region 201, therefore, in the present invention, the first magnetic portion 25 is disposed on the side of the portion of the upper substrate 21 located in the dummy region 202 facing the fixing portion 11, the second magnetic portion 26 mutually attracted to the first magnetic portion 25 is disposed on the side of the portion of the fixing portion 11 facing the upper substrate 21 located in the dummy region 202, the action of atmospheric pressure is cancelled by the attraction between the first magnetic portion 25 and the second magnetic portion 26, and the portion of the upper substrate 21 located in the dummy region 202 is prevented from being recessed toward the lower substrate 22, the cell thickness of the liquid crystal display panel 20 in the virtual area 202 and the cell thickness of the liquid crystal display panel 20 in the display area 201 are made to be consistent, the uniformity of the cell thickness of the liquid crystal display panel 20 is improved, the peripheral Mura of the liquid crystal display panel 20 is improved, and the display effect of the product is improved.
Specifically, the liquid crystal display panel 20 further includes a plurality of supports 23 disposed on the upper substrate 21 side of the lower substrate 22, and a sealant 24 disposed between the upper substrate 21 and the lower substrate 22 and surrounding the plurality of supports 23.
Specifically, the plurality of supports 23 are used to control the cell thickness of the liquid crystal display panel 20, i.e., the distance between the upper substrate 21 and the lower substrate 22. The plurality of supports 23 include a plurality of first spacers 231 located at the display area 201 and a plurality of second spacers 232 located at the virtual area 202.
Further, the height of the first spacer 231 is greater than that of the second spacer 232.
Further, the number of the first spacers 231 is greater than that of the second spacers 232. Therefore, in the prior art, the liquid crystal display panel 20 is subjected to the atmospheric pressure, the second spacer 232 and the first spacer 231 have a height difference, and the dummy area 202 and the display area 201 also have a step difference, and a portion of the upper substrate 21 located in the dummy area 202 is recessed toward the lower substrate 22.
Specifically, since the dummy area 202 of the liquid crystal display panel 20 is blocked by the fixing portion 11, the first magnetic portion 25 and the second magnetic portion 26 may be made of a transparent material or an opaque material.
Specifically, the dummy region 202 is located between the display region 201 and the sealant 24, and the liquid crystal display panel 20 further includes a frame region (not shown) surrounding the dummy region 202.
Specifically, the liquid crystal display module further includes a middle frame 30 disposed below the liquid crystal display panel 20; the middle frame 30 is used to support the liquid crystal display panel 20.
Further, the liquid crystal display module further includes a backlight module 40 located below the liquid crystal display panel 20, and the backlight module 40 is used for providing backlight for the liquid crystal display panel 20.
Specifically, the upper substrate 21 is a TFT array substrate, and the lower substrate 22 is a CF substrate. Alternatively, the upper substrate 21 is a CF substrate, and the lower substrate 22 is a TFT array substrate.
Specifically, the material of the support 23 is photoresist.
Based on the liquid crystal display module, the invention also provides a liquid crystal display device which comprises the liquid crystal display module.
In summary, the liquid crystal display module of the present invention includes a front frame and a liquid crystal display panel in contact with the front frame; the liquid crystal display panel comprises an upper substrate and a lower substrate which are oppositely arranged; the liquid crystal display panel is provided with a display area and a virtual area surrounding the display area; the front frame comprises a fixed part which is contacted with the part of the upper substrate positioned in the virtual area; a first magnetic part is arranged on one side, facing the fixed part, of the part of the upper substrate, which is positioned in the virtual area; the fixing part is provided with a second magnetic part which is mutually attracted with the first magnetic part on one side of the part of the upper substrate facing the virtual area, the attraction between the first magnetic part and the second magnetic part is used for offsetting the effect of atmospheric pressure, the part of the upper substrate located in the virtual area is prevented from sinking towards the direction close to the lower substrate, the box thickness of the liquid crystal display panel located in the virtual area and the box thickness of the liquid crystal display panel located in the display area tend to be consistent, the uniformity of the box thickness of the liquid crystal display panel is improved, the peripheral Mura of the liquid crystal display panel is improved, and the product display effect is improved. The liquid crystal display device can improve the uniformity of the box thickness of the liquid crystal display panel, improve the peripheral Mura of the liquid crystal display panel and improve the display effect of products.
As described above, it will be apparent to those skilled in the art that other various changes and modifications may be made based on the technical solution and concept of the present invention, and all such changes and modifications are intended to fall within the scope of the appended claims.
Claims (10)
1. The utility model provides a liquid crystal display module assembly which characterized in that includes: a front frame (10) and a liquid crystal display panel (20) in contact with the front frame (10);
the liquid crystal display panel (20) comprises an upper substrate (21) and a lower substrate (22) which are oppositely arranged;
the liquid crystal display panel (20) has a display area (201) and a virtual area (202) surrounding the display area (11);
the front frame (10) includes a fixed portion (11) in contact with a portion of the upper substrate (21) located in the dummy area (202);
a first magnetic part (25) is arranged on one side, facing the fixed part (11), of the part, located on the virtual area (202), of the upper substrate (21); and a second magnetic part (26) which is mutually attracted with the first magnetic part (25) is arranged on one side of the part, positioned on the virtual area (202), of the upper substrate (21) of the fixing part (11).
2. The liquid crystal display module according to claim 1, wherein the liquid crystal display panel (20) further comprises a plurality of supports (23) disposed on the lower substrate (22) on a side facing the upper substrate (21), and a sealant (24) disposed between the upper substrate (21) and the lower substrate (22) and surrounding the plurality of supports (23).
3. The liquid crystal display module of claim 2, wherein the plurality of supports (23) comprise a plurality of first spacers (231) located in the display area (201) and a plurality of second spacers (232) located in the dummy area (202).
4. A liquid crystal display module as claimed in claim 3, characterized in that the height of the first spacers (231) is greater than the height of the second spacers (232).
5. A liquid crystal display module as claimed in claim 3, characterized in that the number of first spacers (231) is greater than the number of second spacers (232).
6. The liquid crystal display module as claimed in claim 2, wherein the dummy region (202) is located between the display region (201) and the sealant (24).
7. The liquid crystal display module of claim 1, further comprising a middle frame (30) disposed below the liquid crystal display panel (20); the middle frame (30) is used for supporting the liquid crystal display panel (20).
8. The LCD module of claim 7, further comprising a backlight module (40) positioned below the LCD panel (20).
9. The liquid crystal display module according to claim 1, wherein the upper substrate (21) is a TFT array substrate and the lower substrate (22) is a CF substrate, or wherein the upper substrate (21) is a CF substrate and the lower substrate (22) is a TFT array substrate.
10. A liquid crystal display device comprising the liquid crystal display module according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910087749.7A CN109633960B (en) | 2019-01-29 | 2019-01-29 | Liquid crystal display module and liquid crystal display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910087749.7A CN109633960B (en) | 2019-01-29 | 2019-01-29 | Liquid crystal display module and liquid crystal display device |
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| Publication Number | Publication Date |
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| CN109633960A CN109633960A (en) | 2019-04-16 |
| CN109633960B true CN109633960B (en) | 2021-08-24 |
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| CN201910087749.7A Active CN109633960B (en) | 2019-01-29 | 2019-01-29 | Liquid crystal display module and liquid crystal display device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115097674A (en) * | 2022-07-22 | 2022-09-23 | 绵阳惠科光电科技有限公司 | Display panel and display device |
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| CN1930517A (en) * | 2003-10-16 | 2007-03-14 | 夏普株式会社 | Substrate with spacer, panel, liquid crystal panel, method for producing panel, and method for producing liquid crystal panel |
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| JP2009198655A (en) * | 2008-02-20 | 2009-09-03 | Lg Display Co Ltd | Liquid crystal display element |
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| CN203384902U (en) * | 2013-08-23 | 2014-01-08 | 京东方科技集团股份有限公司 | Backlight module and display device |
| EP2840436A2 (en) * | 2013-08-20 | 2015-02-25 | Funai Electric Co., Ltd. | Display device and support member thereof |
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| JP6192914B2 (en) * | 2012-10-01 | 2017-09-06 | 株式会社ジャパンディスプレイ | Display device and manufacturing method thereof |
| CN102929012B (en) * | 2012-10-29 | 2015-02-18 | 京东方科技集团股份有限公司 | Display device |
| CN105118390B (en) * | 2015-09-30 | 2017-08-01 | 京东方科技集团股份有限公司 | Back board structure and display device |
| US20170139258A1 (en) * | 2015-11-13 | 2017-05-18 | Le Holdings (Beijing) Co., Ltd. | Display device |
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| CN1930517A (en) * | 2003-10-16 | 2007-03-14 | 夏普株式会社 | Substrate with spacer, panel, liquid crystal panel, method for producing panel, and method for producing liquid crystal panel |
| CN101398546A (en) * | 2007-09-25 | 2009-04-01 | 富士通株式会社 | Liquid crystal display device |
| JP2009198655A (en) * | 2008-02-20 | 2009-09-03 | Lg Display Co Ltd | Liquid crystal display element |
| CN102981294A (en) * | 2012-12-28 | 2013-03-20 | 深圳市华星光电技术有限公司 | Liquid crystal display module and liquid crystal display device |
| EP2840436A2 (en) * | 2013-08-20 | 2015-02-25 | Funai Electric Co., Ltd. | Display device and support member thereof |
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