CN215769276U

CN215769276U - Liquid crystal display, backlight module and display device

Info

Publication number: CN215769276U
Application number: CN202122079424.XU
Authority: CN
Inventors: 姜雪松
Original assignee: Guangzhou Shiyuan Electronics Thecnology Co Ltd; Guangzhou Shirui Electronics Co Ltd
Current assignee: Guangzhou Shiyuan Electronics Thecnology Co Ltd; Guangzhou Shirui Electronics Co Ltd
Priority date: 2021-08-31
Filing date: 2021-08-31
Publication date: 2022-02-08
Anticipated expiration: 2031-08-31

Abstract

The utility model belongs to the technical field of display devices, and discloses a liquid crystal screen, a backlight module and a display device. Through pressing from both sides the diaphragm and establishing between stereoplasm glass substrate and polarizing plate, can avoid the inflation of diaphragm and the problem of fraying, promoted the life-span of diaphragm and the quality of LCD screen. The backlight module comprises a backlight source and a liquid crystal screen, wherein the backlight source is arranged on one side, far away from the first polarizing plate, of the second polarizing plate of the liquid crystal screen, and the diaphragm of the backlight module is long in service life and high in liquid crystal screen quality. The display device comprises the backlight module, and is high in quality and long in service life.

Description

Liquid crystal display, backlight module and display device

Technical Field

The utility model relates to the technical field of display devices, in particular to a liquid crystal screen, a backlight module and a display device.

Background

At present, a liquid crystal display (lcd) is widely used in various electronic products as a display component of electronic equipment, and a backlight module is an important component of a display device, and at present, a backlight module is composed of a backlight source (including a back plate, etc.), a functional film (having functions of intensifying light, diffusing, etc.) and a liquid crystal display, each part is relatively independent, the film usually needs to be manually placed in a production process, and in addition, the film is susceptible to abrasion, film arching, and other problems caused by external factors such as structure and environmental influence.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a liquid crystal display, a backlight module and a display device, which are used for avoiding the problems of expansion and abrasion of a diaphragm.

In order to achieve the purpose, the utility model adopts the following technical scheme:

in a first aspect, a liquid crystal screen is provided, which includes a liquid crystal screen main body and a membrane, wherein the liquid crystal screen main body includes a first polarizing plate, a first glass substrate, a display module, a second glass substrate and a second polarizing plate, which are sequentially stacked, and the membrane is clamped between the second glass substrate and the second polarizing plate.

According to the liquid crystal display screen, the diaphragm is clamped between the second glass substrate and the second polarizing plate, so that the expansion and abrasion of the diaphragm can be avoided, the service life of the diaphragm is prolonged, and the quality of the liquid crystal display screen is improved.

In a second aspect, a backlight module is provided, which includes a backlight source and a liquid crystal panel, wherein the backlight source is disposed on a side of a second polarizing plate of the liquid crystal panel, which is far away from a first polarizing plate.

The diaphragm of the backlight module is arranged between the second glass substrate of the liquid crystal display and the second polarizing plate, so that the expansion and abrasion of the diaphragm are avoided, the service life of the diaphragm is prolonged, and the quality of the liquid crystal display is improved; in addition, the diaphragm is integrated in the liquid crystal display, so that the number of parts in the process of assembling the backlight module is indirectly reduced, and the assembling process of the backlight module is simplified.

In a third aspect, a display device is provided, which includes a backlight module.

The display device provided by the utility model has high quality and long service life.

Drawings

Fig. 1 is a sectional view of a liquid crystal panel according to the present invention.

In the figure:

1. a liquid crystal screen main body; 2. a membrane;

11. a first polarizing plate; 12. a first glass substrate; 13. a display component; 14. a second glass substrate; 15. a second polarizing plate;

131. black matrix; 132. an alignment film; 133. a liquid crystal element; 134. a TFT substrate; 135. a support pillar; 136. a color filter.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting of the utility model. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

The embodiment provides a display device, this display device includes backlight unit and flexible circuit board, backlight unit includes backlight and LCD screen, this backlight unit's diaphragm setting has been between the second glass substrate and the second polarizing plate of LCD screen, this flexible circuit board is connected with LCD screen and backlight electricity, because the diaphragm setting has been between the second glass substrate and the second polarizing plate of LCD screen, thereby the inflation and the frostbite of diaphragm have been avoided, the life-span of diaphragm and the quality of LCD screen have been promoted, this display device's quality and life-span have also been promoted.

The flexible wiring board in this embodiment is a printed circuit made of a flexible insulating base material, and the printed circuit provides excellent electrical characteristics, can meet the design requirements for smaller and higher-density mounting, and also contributes to reduction in the assembly sequence and enhancement in reliability.

As shown in fig. 1, the liquid crystal panel includes a liquid crystal panel main body 1 and a film 2, the liquid crystal panel main body 1 includes a first polarizing plate 11, a first glass substrate 12, a display module 13, a second glass substrate 14, and a second polarizing plate 15, which are sequentially stacked, the film 2 is sandwiched between the second glass substrate 14 and the second polarizing plate 15, and the film 2 is used for improving the front brightness of the display device.

It can be understood that the first polarizer 11 and the second polarizer 15 are used to filter out parasitic light, and can filter 99% of glare, enhance visual acuity, improve color contrast and maximize visual comfort. The basic structure of the first polarizer 11 and the second polarizer 15 in this embodiment includes a middle PVA (polyvinyl alcohol), two layers of TAC (cellulose triacetate), a PSA film, a Release film, and a Protective film. The light transmission direction of the first polarizing plate 11 is perpendicular to that of the second polarizing plate 15. It should be noted that the structure and material of the first polarizing plate 11 and the second polarizing plate 15 are not limited thereto, and other alternative materials or structures may be adopted.

Because the technological process of the laminating technology of OCA optical cement is comparatively simple, the processing degree of difficulty is low, and be applicable to the more even product of volume requirement of impressing, consequently this embodiment uses OCA optical cement to laminate diaphragm 2 between second glass substrate 14 and second polarizing plate 15, so that diaphragm 2 is built-in the LCD screen, this diaphragm 2 set up the mode and compare in the current set up mode of diaphragm 2 setting between second polarizing plate 15 and backlight, can avoid the inflation and the frostbite of diaphragm 2 well, the life-span of diaphragm 2 and the quality of LCD screen have been promoted.

Preferably, the optical glue is annularly distributed on the periphery of the membrane 2 to reduce the pasting difficulty, and simultaneously, the use amount of the glue can be reduced, so that the cost is reduced; in addition, the side surface of the diaphragm 2 can be covered with optical cement; the application of the optical adhesive is not limited, as long as the film 2 is bonded to the second glass substrate 14 and the second polarizing plate 15.

Further, the display module 13 includes a black matrix 131 and an alignment film 132 stacked on each other, the black matrix 131 is disposed on one side of the alignment film 132 close to the first glass substrate 12, the display module 13 further includes a plurality of liquid crystal elements 133, a TFT substrate 134, and a plurality of groups of supporting pillars 135, and the plurality of liquid crystal elements 133, the TFT substrate 134, and the plurality of groups of supporting pillars 135 are disposed between the alignment film 132 and the second glass substrate 14.

Preferably, the display module 13 further includes a color filter 136, the color filter 136 is disposed between the black matrix 131 and the first glass substrate 12, and the color filter 136 is used for enabling the liquid crystal screen to display a color image.

Optionally, an accommodating groove is formed in the black matrix 131, the accommodating groove of the black matrix 131 and the first glass substrate 12 form an accommodating cavity, the color filter 136 can be accommodated in the accommodating cavity, and the color filter 136 is disposed in the accommodating cavity defined by the accommodating groove and the first glass substrate 12, so that the color filter 136 is fixed and is not prone to position deviation, and the quality of the liquid crystal display is improved.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, adaptations and substitutions will occur to those skilled in the art without departing from the scope of the utility model. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. The liquid crystal screen is characterized by comprising a liquid crystal screen main body and a membrane, wherein the liquid crystal screen main body comprises a first polarizing plate, a first glass substrate, a display assembly, a second glass substrate and a second polarizing plate which are sequentially stacked, and the membrane is clamped between the second glass substrate and the second polarizing plate.

2. The liquid crystal screen of claim 1, wherein the film is attached to the second glass substrate and the second polarizer by optical glue.

3. The liquid crystal screen of claim 2, wherein the optical cement is OCA optical cement.

4. The liquid crystal screen according to claim 2, wherein the optical cement is annularly distributed on the periphery of the membrane; or the like, or, alternatively,

the optical cement covers the side face of the diaphragm.

5. The liquid crystal screen according to any one of claims 1 to 4, wherein the display assembly comprises a black matrix and an alignment film which are stacked, the black matrix is disposed on one side of the alignment film close to the first glass substrate, the display assembly further comprises a plurality of liquid crystal elements, a TFT substrate and a plurality of groups of support pillars, and the plurality of liquid crystal elements, the TFT substrate and the plurality of groups of support pillars are disposed between the alignment film and the second glass substrate.

6. The liquid crystal screen of claim 5, wherein the display assembly further comprises:

and the color filter is arranged between the black matrix and the first glass substrate.

7. The liquid crystal screen of claim 6, wherein an accommodating cavity is arranged between the first glass substrate and the black matrix, and the color filter can be accommodated in the accommodating cavity.

8. The liquid crystal screen according to claim 7, wherein a receiving groove is formed in the black matrix, and the receiving groove of the black matrix and the first glass substrate form the receiving cavity.

9. A backlight module, comprising a backlight source and the liquid crystal panel of any one of claims 1 to 8, wherein the backlight source is disposed on a side of the second polarizer of the liquid crystal panel away from the first polarizer.

10. A display device comprising the backlight module of claim 9.