CN212905813U - Liquid crystal display module - Google Patents
Liquid crystal display module Download PDFInfo
- Publication number
- CN212905813U CN212905813U CN202021348688.XU CN202021348688U CN212905813U CN 212905813 U CN212905813 U CN 212905813U CN 202021348688 U CN202021348688 U CN 202021348688U CN 212905813 U CN212905813 U CN 212905813U
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- liquid crystal
- crystal display
- guide plate
- light guide
- display module
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Abstract
The utility model provides a liquid crystal display module, including liquid crystal display, a backlight unit for putting liquid crystal display's gluey frame and locating the liquid crystal display back, backlight unit's the back is equipped with the metal frame that plays support guard action, the metal frame has the appearance chamber, liquid crystal display is including flexible line way board, be connected with the lamp strip on the flexible line way board, the income light side laminating lamp strip of light guide plate, bond through the glue film between flexible line way board and the light guide plate, be equipped with at least one reference column that is used for laying the location and takes place to warp when the light guide plate is heated and takes place to warp on the flexible line way board, it is equipped with the mounting groove that is. Compared with the prior art, this liquid crystal display module utilizes the reference column of flexible line way board to install to gluing the mounting groove of frame in when installation, with the light guide plate near gluing the frame edge, avoids light-emitting side product bright edge, simultaneously, when experiencing high temperature, the light guide plate inflation makes the reference column take place the bending to release the required expansion space of light guide plate.
Description
Technical Field
The utility model relates to a liquid crystal display field, especially a liquid crystal display module assembly.
Background
The traditional backlight assembly method of the liquid crystal display module comprises the following steps: as shown in fig. 1, a lower iron frame 1, a reflector plate 2 is arranged in the lower iron frame 1 and attached to the inner wall of the tail part, an LB (light emitting strip) 3 is arranged in the lower iron frame 1, an LB3 is fixedly connected with a light guide plate 5 through an LB double faced adhesive tape 4, a rubber frame 6 is arranged in the lower iron frame 1, a lower diffusion sheet 7, a lower brightness enhancement sheet 8, an upper brightness enhancement sheet 9 and a square adhesive 10 are sequentially arranged in a film material groove of the rubber frame 6, and finally a liquid crystal display screen 11 is arranged in a glass groove of the rubber frame 6 to complete assembly. The liquid crystal display module in the prior art is increasingly pursuing an ultra-narrow frame, and extends from a small size applied in the field of mobile phones, to a medium size such as a flat panel and a notewood. The ultra-narrow bezel means that the light guide plate is closer to the liquid crystal display region. As a common material of the light guide plate, PMMA (polymethyl methacrylate, also called organic glass) has a large thermal expansion coefficient, and after the light guide plate expands to a predetermined gap while a necessary gap between the light guide plate and a support rubber frame of the liquid crystal display module is maintained, the light guide plate is closer to a display area of the liquid crystal display module, and as a light emitting side of the light guide plate, the light guide plate has a stronger optical strength, and looks brighter than other sides, thereby forming a so-called bright edge.
In order to solve the problem of bright edge on the light emitting side, the conventional method comprises the following steps: 1) the light guide plate assembly is directly assembled at a position close to the wall of the rubber frame, but the process sequence is that the light guide plate is assembled firstly and then the rubber frame is assembled, so that the assembly of the light guide plate is determined to be a blind assembly, the phenomenon that the light guide plate exceeds the preset assembly position is easy to occur, and the rubber frame cannot be clamped when the rubber frame is assembled; or the light guide plate is far away from the preset assembly position, and the edge of the light guide plate is too close to the edge of the display area, so that an edge bright edge is generated. 2) The light guide plate is made of PC (polycarbonate), the size of the light guide plate is increased, and the gap between the light guide plate and the rubber frame is reduced to about 0.15mm, so that the problem of bright edges is solved, but the light guide plate made of PC is not scratch-resistant due to the characteristics of the light guide plate, and is easier to produce badly in the manufacturing process; on the other hand, PC materials are more expensive than PMMA materials. And use the light guide plate of PMMA material, if not reserve sufficient inflation clearance between with gluey frame, can be under high temperature state, because the inflation space is not enough, lead to the Z direction crooked to cause the product bad.
SUMMERY OF THE UTILITY MODEL
To the above problem, the utility model provides a can solve light guide plate installation problem and avoid appearing the liquid crystal display module assembly on bright limit of light-emitting side.
The utility model adopts the technical proposal that:
the utility model provides a liquid crystal display module, includes liquid crystal display, is used for settling liquid crystal display's gluey frame and locates the backlight unit at the liquid crystal display back, and backlight unit's the back is equipped with the metal frame that plays support guard action, and the metal frame has and holds the chamber, backlight unit includes the light guide plate, and the back of light guide plate is equipped with the reflector plate, and the front of light guide plate is equipped with the membrane material in a poor light, and the membrane material in a poor light is packed into and is glued in the frame, and its characterized in that, liquid crystal display are connected with the lamp strip including the flexible line way board on the flexible line way board, and the income light side laminating lamp strip of light guide plate bonds through the glue film between flexible line way board and the light guide plate, is equipped with at least one on the.
Preferably, one side of the flexible circuit board is provided with two positioning columns.
More preferably, the width of each positioning post is 1 mm.
Preferably, the backlight film material comprises a lower diffusion sheet, a lower brightness enhancement sheet, an upper brightness enhancement sheet and a square glue which are sequentially stacked, and the light guide plate is positioned on the back of the lower diffusion sheet.
Preferably, the liquid crystal display further includes Cell, pol, and IC.
Compared with the prior art, the beneficial effects of the utility model reside in that: the utility model provides a liquid crystal display module assembly, when the installation, utilize the reference column of flexible line way board to install to the mounting groove of gluing the frame, assemble preset position with the light guide plate according to normal equipment mode, simultaneously with the light guide plate near gluing frame edge, avoid light-emitting side product bright border, simultaneously, when enduring high temperature, the light guide plate inflation, the effort is on the reference column of flexible line way board, make the reference column take place crooked, and release the required expansion space of light guide plate, thereby avoid the light guide plate crooked, avoid bad production.
Drawings
FIG. 1 is an exploded view of a conventional LCD module;
fig. 2 is a first schematic view of a liquid crystal display module according to the present invention;
fig. 3 is a second schematic diagram of a liquid crystal display module according to the present invention;
fig. 4 is an exploded view of a liquid crystal display module according to the present invention;
fig. 5 is a schematic diagram of a flexible printed circuit in a liquid crystal display module according to the present invention;
fig. 6 is a cross-sectional view of a liquid crystal display module according to the present invention;
fig. 7 is a cross-sectional view of a flexible printed circuit board in a liquid crystal display module according to the present invention;
fig. 8 is an internal schematic view of a flexible printed circuit board installed in a liquid crystal display module according to the present invention.
Detailed Description
The preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
Fig. 2 to 8 illustrate a preferred embodiment of a liquid crystal display module according to the present invention. As shown in fig. 2 to 8, the liquid crystal display module includes a liquid crystal display screen 10, a plastic frame 20 for placing the liquid crystal display screen, and a backlight module 30 disposed on the back of the liquid crystal display screen, the back of the backlight module 30 is provided with a metal frame 40 for supporting and protecting, the metal frame has a cavity, the backlight module 30 includes a light guide plate 31, the back of the light guide plate is provided with a reflector 32, the front of the light guide plate is provided with a backlight film material 33, the backlight film material 33 is placed in the plastic frame, the liquid crystal display screen 10 includes a flexible circuit board 11, the flexible circuit board 11 is connected with a light bar 12, the light incident side of the light guide plate 31 is attached to the light bar 12, the flexible circuit board 11 is bonded to the light guide plate 31 through a glue layer, the flexible circuit board 11 is provided with at least one positioning column 111 for placing and positioning and deforming when the light, before installation light guide plate 31, lay flexible line way board 11 in the mounting groove 21 of gluing in frame 20 earlier, then lay light guide plate 31, make light-emitting side distance of light guide plate 31 glue frame 0.1mm, avoid the bright limit phenomenon of light-emitting side to appear, assemble light guide plate 31 to preset position according to normal assembly mode like this, simultaneously with light guide plate 31 near gluing the frame edge, avoid light-emitting side product bright limit, and simultaneously, when experiencing high temperature, the light guide plate inflation, the effort is on flexible line way board's reference column, make reference column 111 take place the bending, and release the required inflation space of light guide plate 31, thereby avoid light guide plate 31 crooked, avoid bad production.
As a preferred embodiment, one side of the flexible circuit board 11 is provided with two positioning columns 111; the width of each positioning column 111 is 1mm, and the narrow width can cause the strength of the positioning column to be weak, so that the positioning function of the light guide plate cannot be achieved; the large width of the positioning post results in high strength of the positioning post, and the light guide plate 31 is difficult to bend when being expanded and pressed by the light guide plate at high temperature, resulting in deformation of the light guide plate.
The backlight film 33 includes a lower diffusion sheet 331, a lower light enhancement sheet 332, an upper light enhancement sheet 333 and a square glue 334 which are stacked in sequence, and the light guide plate 31 is located on the back of the lower diffusion sheet 331.
The liquid crystal display screen 10 further includes a Cell (liquid crystal panel), pol (polarizer), and IC (chip).
To sum up, the technical scheme of the utility model can be fully effectual the above-mentioned utility model purpose of realization, just the utility model discloses a structure and functional principle all obtain abundant verification in the embodiment, can reach anticipated efficiency and purpose, do not deviating from the utility model discloses a under the prerequisite of principle and essence, can make multiple change or modification to the embodiment of utility model. Therefore, the present invention includes all the alternative contents within the scope mentioned in the claims, and all the equivalent changes made within the claims of the present invention are included in the claims of the present application.
Claims (5)
1. The utility model provides a liquid crystal display module assembly, includes liquid crystal display, is used for the gluey frame of putting liquid crystal display and locates the backlight unit at the liquid crystal display back, and backlight unit's the back is equipped with the metal frame that plays support guard action, and the metal frame has and holds the chamber, backlight unit includes the light guide plate, and the back of light guide plate is equipped with the reflector plate, and the front of light guide plate is equipped with the membrane material in a poor light, and the membrane material in a poor light is packed into and is glued in the frame, its characterized: liquid crystal display is including the flexible line way board, is connected with the lamp strip on the flexible line way board, and the income light side laminating lamp strip of light guide plate bonds through the glue film between flexible line way board and the light guide plate, is equipped with at least one on the flexible line way board and is used for laying the location and takes place the reference column that warp when the light guide plate is heated and takes place to warp, is equipped with the mounting groove that is used for supplying the reference column to lay on the glue.
2. The liquid crystal display module of claim 1, wherein: and two positioning columns are arranged on one side of the flexible circuit board.
3. The liquid crystal display module of claim 1, wherein: the width of each positioning post is 1 mm.
4. The liquid crystal display module of claim 1, wherein: the backlight film material comprises a lower diffusion sheet, a lower brightness enhancement sheet, an upper brightness enhancement sheet and a square glue which are sequentially stacked, and the light guide plate is arranged on the back of the lower diffusion sheet.
5. The liquid crystal display module of claim 1, wherein: the liquid crystal display screen also comprises Cell, pol and IC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021348688.XU CN212905813U (en) | 2020-07-10 | 2020-07-10 | Liquid crystal display module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021348688.XU CN212905813U (en) | 2020-07-10 | 2020-07-10 | Liquid crystal display module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212905813U true CN212905813U (en) | 2021-04-06 |
Family
ID=75284640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021348688.XU Active CN212905813U (en) | 2020-07-10 | 2020-07-10 | Liquid crystal display module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212905813U (en) |
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2020
- 2020-07-10 CN CN202021348688.XU patent/CN212905813U/en active Active
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