CN220020051U

CN220020051U - Liquid crystal display screen for enhancing single-layer region reliability

Info

Publication number: CN220020051U
Application number: CN202321072199.XU
Authority: CN
Inventors: 林荣利; 刘兴
Original assignee: Xinli Photoelectric Renshou Co Ltd
Current assignee: Xinli Photoelectric Renshou Co Ltd
Priority date: 2023-05-06
Filing date: 2023-05-06
Publication date: 2023-11-14
Anticipated expiration: 2033-05-06

Abstract

The utility model discloses a liquid crystal display screen for enhancing the reliability of a single-layer area, which comprises a cover plate, OCA optical cement, an upper polaroid, a color film substrate, an array substrate and a lower polaroid which are sequentially overlapped from top to bottom, wherein the cover plate and the upper polaroid are fully attached through the OCA optical cement, the array substrate is longer than the color film substrate and extends outwards to form the single-layer area, the lower polaroid is prevented from being in the single-layer area to form an avoidance area, and filling glue is arranged on the lower surface of the array substrate positioned in the single-layer area and fills the avoidance area of the lower polaroid. During production, the polaroid can be firstly attached to the array substrate, then COG and FOG are carried out, then AOI detection is carried out on the condition of ACF binding particles, and then filling glue is dispensed after the AOI detection is finished, so that the AOI equipment can carry out photographing detection. The thickness of the single-layer area is thickened due to the supplement of the filling glue, so that the problem that the single-layer area of the array substrate is weak and easy to break is avoided.

Description

Liquid crystal display screen for enhancing single-layer region reliability

Technical Field

The utility model relates to the technical field of liquid crystal display, in particular to a liquid crystal display screen for enhancing the reliability of a single-layer area.

Background

The conventional mobile phone type liquid crystal display screen generally comprises an array substrate and a color film substrate arranged above the array substrate, wherein the array substrate is generally longer than the color film substrate and extends outwards, the outwards extending part is also called a single-layer area, and a lower polarizer is generally arranged on the lower surface of the array substrate.

In the prior art, in order to perform AOI detection on the condition of ACF binding particles after COG and FOG, the lower surface of an array substrate positioned in a single-layer area is generally free of a lower polaroid, namely, an avoidance area is required to be arranged in the single-layer area of the lower polaroid, and if the lower polaroid is not provided with the avoidance area in the single-layer area but covers the lower surface of the single-layer area of the lower polaroid, then the AOI equipment cannot perform photographing detection. Therefore, the structure causes the problem that the single-layer area of the array substrate is weak and easy to break, and reduces the reliability of the single-layer area of the array substrate, thereby reducing the product competitiveness of the liquid crystal display screen.

Disclosure of Invention

The utility model aims to solve the technical problem of enhancing the reliability of a single-layer area of an array substrate.

The technical problems to be solved by the utility model are realized by the following technical scheme:

in order to solve the technical problems, the utility model provides a liquid crystal display screen for enhancing the reliability of a single-layer area, which comprises a cover plate, OCA optical cement, an upper polaroid, a color film substrate, an array substrate and a lower polaroid which are sequentially overlapped from top to bottom, wherein the cover plate and the upper polaroid are fully attached through the OCA optical cement, the array substrate is longer than the color film substrate and extends outwards to form the single-layer area, the lower polaroid is prevented from being in the single-layer area to form an avoidance area, and the lower surface of the array substrate positioned in the single-layer area is provided with filling cement which fills the avoidance area of the lower polaroid.

As a preferred implementation manner of the liquid crystal display screen for enhancing the reliability of the single-layer area, the edge of the upper surface of the outwards extending array substrate is provided with a bulge, the upper surface of the array substrate is provided with buffer glue between the bulge and the color film substrate, and the buffer glue is abutted with the cover plate.

As a preferred embodiment of the liquid crystal display screen for enhancing the reliability of the single-layer area, the upper surface of the protrusion is flush with the upper surface of the color film substrate.

As a preferred embodiment of the liquid crystal display screen for enhancing the reliability of the single-layer area, the buffer glue is silicone glue.

As a preferred embodiment of the liquid crystal display screen for enhancing the reliability of the single-layer area, a rounding angle is arranged between the bulge and the array substrate.

As a preferred embodiment of the liquid crystal display panel for enhancing the reliability of the single-layer region provided by the utility model, the upper surface of the array substrate and the side surfaces of the protrusions are rough surfaces.

As a preferred embodiment of the liquid crystal display panel for enhancing the reliability of the single-layer region, an IC and an FPC are bonded to the upper surface of the array substrate located in the single-layer region.

As a preferred implementation manner of the liquid crystal display screen for enhancing the reliability of the single-layer area, the FPC comprises a body and a connecting part connected with the body, wherein one end of the connecting part, which is far away from the body, is provided with a golden finger, and two sides of the connecting part are provided with two reinforcing plates which are mutually staggered.

As a preferred embodiment of the liquid crystal display panel for enhancing the reliability of the single-layer region provided by the utility model, the two reinforcing plates have different widths.

As a preferred embodiment of the liquid crystal display panel for enhancing the reliability of the single-layer region provided by the utility model, the outer surfaces of the two reinforcing plates are both provided with a surface treatment layer for enhancing the surface roughness.

The utility model has the following beneficial effects:

because the lower polaroid avoids the single-layer area to form an avoidance area, when the manufacturing process is carried out, the lower polaroid can be firstly attached to the array substrate, then COG and FOG are carried out, then AOI detection is carried out to bind the particle condition of ACF, and filling glue is dispensed after the AOI detection is finished, so that the AOI equipment can carry out photographing detection. And because the filling glue is added, the thickness of the single-layer area is thickened, thereby avoiding the problem that the single-layer area of the array substrate is weak and easy to break, improving the reliability of the single-layer area of the array substrate, avoiding abnormal display of the liquid crystal display screen, further reducing the probability of defective products of the liquid crystal display screen, greatly reducing the production and manufacturing cost of the liquid crystal display screen, improving the product competitiveness of the liquid crystal display screen, and meeting the increasingly-growing quality requirements of enterprises.

Drawings

In order to more clearly illustrate the solution of the present utility model, a brief description will be given below of the drawings required for the description of the embodiments, it being obvious that the drawings in the following description are some embodiments of the present utility model, and that other drawings may be obtained from these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a liquid crystal display screen for enhancing reliability of a single layer region according to the present utility model.

FIG. 2 is a schematic diagram of the improved structure of FIG. 1

Fig. 3 is a schematic structural diagram of embodiment 2.

Fig. 4 is a schematic structural diagram of embodiment 3.

Reference numerals illustrate:

a cover plate 1; OCA optical cement 2; a top polarizer 3; a color film substrate 4; an array substrate 5; a lower polarizer 6; filling glue 7;

a protrusion 51; buffer glue 52;

an FPC8; a body 81; a connection portion 82; a gold finger 83; stiffening plate 84.

Detailed Description

In order that those skilled in the art will better understand the present utility model, a technical solution in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", and "a third" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

The utility model provides a liquid crystal display screen for enhancing the reliability of a single-layer area, which comprises a cover plate, OCA optical cement, an upper polaroid, a color film substrate, an array substrate and a lower polaroid which are sequentially overlapped from top to bottom, wherein the cover plate and the upper polaroid are fully attached through the OCA optical cement, the array substrate is longer than the color film substrate and extends outwards to form the single-layer area, the lower polaroid is prevented from the single-layer area to form a prevention area, and filling glue is arranged on the lower surface of the array substrate positioned in the single-layer area and fills the prevention area of the lower polaroid.

In order to make the person skilled in the art better understand the solution of the present utility model, the technical solution of the embodiment of the present utility model will be clearly and completely described below with reference to the accompanying drawings. The present utility model is described in detail below with reference to the drawings and the embodiments, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

Example 1

Referring to fig. 1, a liquid crystal display screen for enhancing reliability of a single-layer region provided by the utility model comprises a cover plate 1, OCA optical cement 2, an upper polarizer 3, a color film substrate 4, an array substrate 5 and a lower polarizer 6 which are sequentially stacked from top to bottom, wherein the cover plate 1 and the upper polarizer 3 are fully attached through the OCA optical cement 2, the array substrate 5 is longer than the color film substrate 4 and extends outwards, a single-layer region is formed at the outwards extending part of the array substrate 5, the lower polarizer 6 avoids the single-layer region to form an avoidance region, a filling cement 7 is arranged on the lower surface of the array substrate 5 positioned in the single-layer region, and the avoidance region of the lower polarizer 6 is filled with the filling cement 7.

Further, the filling glue 7 may be UV glue or silicone glue, and in the manufacturing process, if the selected filling glue 7 is UV glue, the array substrate 5 is firstly attached with the polarizer 6, then COG and FOG are performed, then AOI is performed to detect ACF binding particle conditions, and finally the filling glue 7 is dispensed and UV is passed. This does not affect normal AOI detection. And assembling the array substrate 5 into the cover plate 1, and then assembling the backlight module. If the selected filling adhesive 7 is silicone adhesive, the array substrate 5 is firstly adhered with the polarizer 6, then COG and FOG are carried out, and then AOI is carried out to detect the binding particle condition of the ACF. After the cover plate 1 is assembled with the array substrate 5, the glue 7 is filled in the glue, and finally the backlight module is assembled. According to the utility model, the filling glue 7 is selected to fill the part of the lower polarizer 6 avoiding the single-layer area, so that the heightening glue can be correspondingly eliminated on the backlight module. Meanwhile, after the backlight module is attached to the main screen, the adhesion area between the black glue and the array substrate 5 is increased, and the attachment is firmer.

Further, the filling glue 7 should have a filling height which is consistent with the height of the lower polarizer 6 or slightly lower than the height of the lower polarizer 6.

Referring to fig. 2, further, an IC and an FPC8 are bonded to the upper surface of the array substrate 5 in the single layer region.

Example 2

Referring to fig. 3, in this embodiment, as a further optimization scheme of embodiment 1, a protrusion 51 is disposed at an edge of an upper surface of the array substrate 5 protruding outwards, a buffer glue 52 is disposed between the protrusion 51 and the color film substrate 4 on the upper surface of the array substrate 5, and the buffer glue 52 abuts against the cover plate 1. Since the edge of the array substrate 5 is provided with the protrusion 51, the protrusion 51 can limit the flow of the buffer glue 52, so that the form of the buffer glue 52 is easy to control, and the phenomenon of glue overflow or glue dropping is not full can be avoided. Thereby avoiding the liquid crystal display screen from being unable to be assembled with the casing. And further, the problems of poor buffering effect and easy breakage of the array substrate 5 caused by insufficient dispensing are avoided, and abnormal display of the liquid crystal display screen is prevented.

Further, the upper surface of the protrusion 51 is flush with the upper surface of the color film substrate 4 to further limit the flow of the buffer glue 52, so that the shape of the buffer glue 52 is easy to control, and no glue overflow or glue dropping is not full.

Further, the cushion gum 52 is a silicone gum.

Further, a rounded corner is arranged between the bulge 51 and the array substrate 5, so that the buffer glue 52 can fill up the space between the bulge 51 on the upper surface of the array substrate 5 and the color film substrate 4 more easily, and the bulge 51 with the rounded corner can enable the buffer glue 52 to flow into the space between the bulge 51 on the upper surface of the array substrate 5 and the color film substrate 4 more smoothly, so that bubbles are not easy to occur.

Further, the upper surface of the array substrate 5 and the side surfaces of the protrusions 51 are roughened surfaces to enhance the fixing effect of the cushion rubber 52.

Further, the rough surface is a frosted surface to further improve the fixing effect of the cushion gum 52.

Further, the roughened surface is diamond knurled to further enhance the securing effect of the cushion gum 52.

Example 3

Referring to fig. 4, in this embodiment, as a further optimization scheme of embodiment 1, the FPC8 includes a main body 81, a connection portion 82 connected with the main body 81, and a golden finger 83 connected with the connection portion 82, and two reinforcing plates 84 arranged in a staggered manner are provided on the outer surfaces of two sides of the connection portion 82. In the conventional design of FPC8, the reinforcing plate 84 is not provided or the reinforcing plate 84 is provided at the same position and the width of the reinforcing plate 84 is the same, so that when the FPC8 is plugged or unplugged, the applied pressure is concentrated on the same straight line, resulting in micro-breaking of the circuit of FPC8. According to the FPC8 provided by the utility model, as the two reinforcing plates 84 are respectively positioned at two sides of the connecting part 82 and are mutually staggered, when the FPC8 is pulled out, the pressure of the reinforcing plates 84 at two sides to the FPC8 is not on the same line segment, and the stress is not concentrated on the same straight line during bending, so that the problems of stress concentration and easy micro-breaking of a circuit at the golden finger 83 are avoided, and the product yield is improved.

Further, the two reinforcing plates 84 which are staggered with each other in the present utility model may be respectively disposed at two different positions; the center point positions may be the same, but the widths of the two stiffening plates 84 are different, so long as the stress of the two stiffening plates 84 when bending is not concentrated on the same straight line, the stress concentration can be avoided, and the problem that the circuit at the golden finger 83 is easy to be slightly broken can be avoided, thereby improving the product yield. In this embodiment, the stiffening plates 84 include a first stiffening plate 84 and a second stiffening plate 84, each stiffening plate 84 has a different width, and the center points of the stiffening plates are on the same horizontal line, so that the edges of the stiffening plates 84 are staggered from each other and not concentrated on the same straight line.

Further, the material of the stiffener 84 is FR4, PI or stainless steel, and in other embodiments, if the heat generated by the FPC8 is large, a heat dissipation material with better heat dissipation effect, such as aluminum foil stiffener 84, may be used.

Further, the outer surfaces of the upper stiffener 84 and the lower stiffener 84 are provided with surface treatment layers for increasing surface roughness to improve friction between the worker and the upper stiffener 84 and the lower stiffener 84, so that the FPC8 is convenient to pull out.

Further, the surface treatment layer is provided with diamond knurls on the outer surfaces of the upper reinforcing plate 84 and the lower reinforcing plate 84, so that the FPC8 can be pulled out more easily when the FPC8 is pulled out, and the risk of breakage of the FPC8 is reduced.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

It is apparent that the above-described embodiments are only some embodiments of the present utility model, but not all embodiments, and the preferred embodiments of the present utility model are shown in the drawings, which do not limit the scope of the patent claims. This utility model may be embodied in many different forms, but rather, embodiments are provided in order to provide a thorough and complete understanding of the present disclosure. Although the utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing description, or equivalents may be substituted for elements thereof. All equivalent structures made by the content of the specification and the drawings of the utility model are directly or indirectly applied to other related technical fields, and are also within the scope of the utility model.

Claims

1. The utility model provides a strengthen liquid crystal display of individual layer regional reliability, its characterized in that includes apron (1), OCA optical cement (2), last polaroid (3), various membrane base plate (4), array substrate (5) and lower polaroid (6) that from top to bottom in proper order stack set up, apron (1) and last polaroid (3) pass through OCA optical cement (2) are laminated entirely, array substrate (5) are longer than various membrane base plate (4) and outwards stretch out and are formed with the individual layer region, lower polaroid (6) dodges the individual layer region is formed with dodges the district, is located the lower surface of array substrate (5) of individual layer region is provided with packing glue (7), packing glue (7) are full of dodge the district of lower polaroid (6).

2. The liquid crystal display screen with the enhanced single-layer region reliability according to claim 1, wherein a protrusion (51) is arranged at the edge of the upper surface of the array substrate (5) protruding outwards, a buffer glue (52) is arranged between the protrusion (51) and the color film substrate (4) on the upper surface of the array substrate (5), and the buffer glue (52) is abutted to the cover plate (1).

3. The liquid crystal display panel with enhanced reliability of single layer region according to claim 2, wherein the upper surface of the protrusion (51) is flush with the upper surface of the color film substrate (4).

4. The liquid crystal display panel of claim 2, wherein the buffer adhesive (52) is a silicone adhesive.

5. The liquid crystal display panel with enhanced reliability of single layer region according to claim 2, wherein rounded corners are provided between the protrusions (51) and the array substrate (5).

6. The liquid crystal display panel of claim 2, wherein the upper surface of the array substrate (5) and the side surfaces of the protrusions (51) are roughened surfaces.

7. The liquid crystal display panel of claim 1, wherein ICs and FPCs (8) are bonded to the upper surface of the array substrate (5) in the single layer region.

8. The liquid crystal display screen with enhanced reliability in a single-layer area according to claim 7, wherein the FPC (8) comprises a main body (81) and a connecting portion (82) connected with the main body (81), a golden finger (83) is arranged at one end of the connecting portion (82) far away from the main body (81), and two reinforcing plates (84) which are arranged in a staggered manner are arranged at two sides of the connecting portion (82).

9. The liquid crystal display panel of claim 8, wherein the two stiffening plates (84) have different widths.

10. The liquid crystal display panel of claim 8, wherein the outer surfaces of both of the reinforcing plates (84) are surface-treated layers that enhance surface roughness.