CN210015306U

CN210015306U - Mobile phone liquid crystal display screen

Info

Publication number: CN210015306U
Application number: CN201921012022.4U
Authority: CN
Inventors: 刘检华
Original assignee: Shenzhen Jindongdi Technology Co Ltd
Current assignee: Shenzhen Jindongdi Technology Co Ltd
Priority date: 2019-07-02
Filing date: 2019-07-02
Publication date: 2020-02-04
Anticipated expiration: 2029-07-02

Abstract

The utility model discloses a cell-phone liquid crystal display, which comprises an outer shell, be equipped with the cavity groove in the shell, cavity inslot portion is equipped with the light guide plate respectively, the backlight, the central point that the cavity groove was located to the light guide plate puts, its downside is equipped with first reflectance coating, the quantity of backlight is two and uses the axis of light guide plate to set up as central bilateral symmetry, the periphery of light guide plate is pasted and is had the photomask, the last lower extreme of photomask extends to reserve and paste on the marginal terminal surface about the light guide plate, be provided with the heat insulating layer on the outer wall of photomask, be provided with the drying layer between the outer wall on heat insulating layer and the cavity inslot wall of shell, the outside of both ends backlight all is provided with the second reflectance coating, the. The temperature and moisture resistance between the shading film and the shell is improved, the brightness concentration of the backlight source is improved, and the display brightness of the liquid crystal display screen is greatly enhanced.

Description

Mobile phone liquid crystal display screen

Technical Field

The utility model relates to an electronic display equipment technical field specifically is a cell-phone liquid crystal display.

Background

With the development of science and technology, mobile phones have also been developed rapidly, so the mobile phone screen is a major item of research and development on mobile phones, wherein the main accessories used for the mobile phone screen are backlight boards which are light source accessories used for ensuring the brightness emitted by the back of the liquid crystal display screen, a light guide plate and a backlight source are arranged in the backlight boards, a light shielding film arranged on the periphery of the light guide plate for guiding the light emitted from the backlight, the light guide plate itself generates high temperature, and the high temperature is transferred to the light shielding film and is further transferred to the outside, however, the conventional light guide plate generally has no structure of a heat insulating layer and a drying layer between the light shielding film and the outer case thereof, which reduces the heat insulating and moisture-proof properties between the light shielding film and the outer case, and in addition, the brightness concentration of the backlight source is low, and the display brightness of the light source with low brightness concentration projected on the liquid crystal display screen is also low.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a cell-phone liquid crystal display to solve the problem that the luminance concentration degree that separates the temperature moisture resistance between photomask and the shell that prior art exists is lower, the backlight.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a cell-phone liquid crystal display, includes the shell, be equipped with the cavity groove in the shell, cavity inslot portion is equipped with light guide plate, backlight respectively, the central point that the cavity groove was located to the light guide plate puts, and its downside is equipped with first reflectance coating, the quantity of backlight is two and uses the axis of light guide plate to set up as central bilateral symmetry, the periphery of light guide plate is pasted and is had the photomask, and the upper and lower end of photomask extends to reserve and paste on edge terminal surface about the light guide plate, be provided with the layer that insulates against heat on the outer wall of photomask, be provided with the drying layer between the outer wall on layer that insulates against heat and the cavity inslot wall of shell, the outside of both ends backlight all is provided with the second reflectance coating, the both.

Preferably, the light shielding film is penetrated by the left and right light guide holes and communicated with the backlight source.

Preferably, the two sides of the shading film are respectively provided with a clamping groove, the two clamping grooves are arranged in a bilateral symmetry mode by taking the central axis of the light guide plate as the center, and the light intensifying sheets are arranged in the clamping grooves.

Compared with the prior art, the beneficial effects of the utility model are that: through heat-insulating layer and dry layer structure, effectively improved the heat insulation moisture resistance between photomask and the shell, in addition, through setting up the brightness enhancement film in the both ends light guide hole, effectively improved the luminance concentration of backlight, greatly strengthened liquid crystal display's the demonstration luminance.

Drawings

FIG. 1 is a sectional view of the whole structure of the present invention;

fig. 2 is a top cross-sectional view of the overall structure of the present invention.

In the figure: the light guide plate comprises a shell 1, a light guide plate 2, a backlight source 3, a first reflection film 4, a second reflection film 5, a light guide hole 6, a clamping groove 7, a brightness enhancement film 8, a shading film 9, a heat insulation layer 91 and a drying layer 92.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 and fig. 2, the present invention provides a technical solution: a mobile phone liquid crystal display screen comprises a shell 1, the shell 1 is a box body made by bending an aluminum thin plate, the box body is a mobile phone liquid crystal display screen and a mounting shell of a backlight plate of the mobile phone liquid crystal display screen, a hollow groove is arranged in the shell 1, a light guide plate 2 and a backlight source 3 are respectively arranged in the hollow groove, the backlight source 3 is a common light source behind the mobile phone liquid crystal display screen, the common light source is connected to a preset battery plate connecting head of a mobile phone through a power line and supplies power to the backlight source 3, the light guide plate 2 is arranged at the central position of the hollow groove, the light guide plate 2 is made of an acrylic transparent plate integrally, then a high-tech material with high reflectivity and no light absorption is used, light guide points are printed on the bottom surface of the acrylic transparent plate by using laser engraving and UV screen printing technology, the light source can, the lower side of the light guide plate is provided with a first reflection film 4, the number of the backlight sources 3 is two, the two backlight sources are arranged in bilateral symmetry by taking the central axis of the light guide plate 2 as the center, the periphery of the light guide plate 2 is adhered with a light shielding film 9, referring to figure 2, the light shielding film 9 is a PET film, the single surface is 3M back glue, the light shielding film can be strongly adhered with the outer wall surface of the light guide plate 2, the periphery of the light guide plate 2 can be shielded, the upper end and the lower end of the light shielding film 9 are reserved in an extending way and are adhered on the end surfaces of the upper edge and the lower edge of the light guide plate 2, the light source can be effectively prevented from leaking from the periphery of the light guide plate 2 for one circle, the light source reflected by the upward light source is ensured to be projected completely upwards, the upward emission efficiency of the light source is ensured, the outer wall surface of, the first reflection film 4 and the second reflection film 5 can reflect light sources, light guide holes 6 are symmetrically arranged at two ends of the light shielding film 9, the left light guide hole 6 and the right light guide hole 6 penetrate the light shielding film 9 and are communicated with the backlight source 3, the backlight source 3 is electrified to emit light, the emitted light source is guided into the light guide plate 2 through the light guide holes 6 at the two ends, the light guide plate 2 converts a linear light source given by the backlight source 3 into a surface light source, the linear light source is upwards generated on a liquid crystal body in the liquid crystal display screen at the upper end through the second reflection film 5 at the lower side, at the moment, when the light source emitted by the backlight source 3 is guided by the light guide plate 2, high temperature is generated in the light guide plate 2 and is transmitted to the light shielding film 9 and is continuously transmitted outwards, the heat insulation layer 91 is TPE colloid filler, which is colloid obtained by blending and modifying SEBS and elastomer, has the characteristic, can avoid the high temperature on the light guide plate 2 to transmit the outside, and the drying layer 92 is the drier grained layer, it is whole to form together through having the plastic film cladding of breathing freely permeating water, the drier grained layer is made by blue silica gel granule, it can used repeatedly many times to have good water absorption aridity, when the inside high temperature that produces of light guide plate 2, and shell 1 ambient temperature is lower, the cold and hot environmental temperature difference forms steam, drying layer 92 can be quick absorb this steam, whole the improvement the thermal insulation moisture resistance between photomask 9 and the shell 1.

Referring to fig. 1 and 2, two sides of a light shielding film 9 are respectively provided with a clamping groove 7, the two clamping grooves 7 are arranged in bilateral symmetry with the central axis of the light guide plate 2 as the center, a brightness enhancement film 8 is arranged in the clamping groove 7, the brightness enhancement film 8 is BEF, a precise prism pattern optical film is made of acrylic resin and is attached to the base surface of a PET film with good transparency, because a light source emitted by the backlight source 3 is a scattering light source, the scattering light source passes through the brightness enhancement film 8, the precise prism pattern optical film attached to the brightness enhancement film 8 can concentrate the brightness of the light source, the brightness concentration of the backlight source 3 is improved, the display brightness of the liquid crystal display screen projected by the light source with the improved brightness concentration is also improved, and the display brightness of the liquid crystal display screen is greatly enhanced.

The utility model discloses when concrete implementation: the backlight source 3 is electrified to emit light, the emitted light source is guided into the light guide plate 2 through the light guide holes 6 at two ends, the light guide plate 2 converts a line light source given by the backlight source 3 into a surface light source, the second reflection film 5 at the lower side upwards generates on a liquid crystal body in the liquid crystal display screen at the upper end, at the moment, when the light guide plate 2 guides the light source emitted by the backlight source 3, high temperature can be generated in the light guide plate 2 and can be transmitted to the shading film 9 and continuously transmitted to the outer side, the heat insulation layer 91 is TPE colloid filler which is colloid obtained by blending and modifying SEBS and SBS elastomer, has the characteristic of good high temperature resistance, is filled between the shading film 9 and a gap of the inner wall of the shell 1, can prevent the high temperature on the light guide plate 2 from being transmitted to the outer side, and the drying layer 92 is a drying agent particle, the desiccant particle layer is made of blue silica gel particles, has good water absorption drying performance and can be repeatedly used for a plurality of times, when high temperature is generated in the light guide plate 2, the environment temperature of the shell 1 is lower, and the temperature difference of cold and hot environments forms water vapor, the drying layer 92 can quickly absorb the water vapor, the temperature insulation and moisture resistance between the shading film 9 and the shell 1 are integrally improved, in addition, the brightness enhancement sheet 8 is BEF, the precise prism pattern optical film is made of acrylic resin and is attached to the base surface of a PET sheet with good transparency, because the light source emitted by the backlight source 3 is a scattering light source, the scattering light source passes through the brightness enhancement sheet 8, the precise prism pattern optical film attached to the brightness enhancement sheet 8 can concentrate the brightness of the light source, the brightness concentration degree of the backlight source 3 is improved, and the display brightness projected by the light source with the improved brightness concentration degree onto the liquid crystal display screen is also, the display brightness of the liquid crystal display screen is greatly enhanced.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A mobile phone liquid crystal display screen comprises a shell (1), and is characterized in that: a hollow groove is arranged in the shell (1), a light guide plate (2) and a backlight source (3) are respectively arranged in the hollow groove, the light guide plate (2) is arranged at the central position of the hollow groove, the lower side of the backlight module is provided with a first reflecting film (4), the number of the backlight sources (3) is two, the backlight sources are arranged in a left-right symmetrical mode by taking the central axis of the light guide plate (2) as the center, a shading film (9) is stuck on the periphery of the light guide plate (2), the upper end and the lower end of the shading film (9) are reserved in an extending way and stuck on the end surfaces of the upper edge and the lower edge of the light guide plate (2), a heat insulation layer (91) is arranged on the outer wall surface of the shading film (9), a drying layer (92) is arranged between the outer wall surface of the heat insulation layer (91) and the inner wall of the hollow groove of the shell (1), the outer sides of the two-end backlight sources (3) are respectively provided with a second reflection film (5), and two ends of the shading film (9) are symmetrically provided with light guide holes (6).

2. A mobile phone liquid crystal display according to claim 1, wherein: the left light guide hole and the right light guide hole (6) penetrate through the shading film (9) and are communicated with the backlight source (3).

3. A mobile phone liquid crystal display according to claim 1, wherein: the light shading film is characterized in that clamping grooves (7) are respectively formed in two sides of the light shading film (9), the two clamping grooves (7) are arranged in a bilateral symmetry mode by taking the central axis of the light guide plate (2) as the center, and brightness enhancement sheets (8) are arranged in the clamping grooves (7).