CN101644852A - Double-side liquid crystal display screen - Google Patents

Abstract

The invention discloses a double-side liquid crystal display screen for solving the technology problems that the manufacturability is improved and the manufacturing cost is reduced. In order to solvethe technical problems, the invention uses the following technical scheme: a double-side liquid crystal display screen comprises two groups of display screen of which the back parts are installed opposite to each other; the back parts of reflecting pieces in the two groups of display screens are connected with each other; a light guide plate, a diffuser plate, an optical brightening membrane and apanel are respectively connected outside the reflecting piece successively; the upper and lower ends of the two groups of the display screens are respectively provided with an upper lamp shade and alower lamp shade; and lighting tubes are installed in the upper lamp shade and the lower lamp shade. Compared with the prior art, the invention uses two groups of display screens for reducing the metal back plates in the display screen, the back parts of the reflecting pieces in the two groups of display screens are connected with each other, and other components are connected according to normalstructure to form an integrated double-side liquid crystal display screen, thereby being capable of effectively reducing the cost, the machine volume and the space occupancy.

Description

Double-side liquid crystal display screen

Technical field

The present invention relates to a kind of LCDs, particularly a kind of LCDs with double-sided display function.

Background technology

Employing is staggered relatively with the back side of two separate LCD TV usually for existing on the market double-side liquid crystal display screen at present, and this kind structure is not to adopt integrated design in design, the cost height, and thickness is thick; For improving above-mentioned shortcoming, the two-sided display screen that adopts the straight-down negative integrated design is also arranged, but this structure exists shortcomings such as assembling difficulty, manufacturing difference on producing, cause can't being widely used in public places.

Summary of the invention

The purpose of this invention is to provide a kind of double-side liquid crystal display screen, the technical matters that solve is to improve manufacturability, and reduces production costs.

For solving the problems of the technologies described above, the utility model adopts following technical scheme: a kind of double-side liquid crystal display screen, comprise display screen, described display screen has two groups and back to be oppositely arranged, reflector plate back in described two groups of display screens interconnects, be connected with light guide plate, diffusion sheet, optical brightening diaphragm and panel outside reflector plate respectively in turn, the upper/lower terminal of described two groups of display screens is respectively equipped with upper lamp shade and lower lamp shade, is provided with fluorescent tube in described upper lamp shade and the lower lamp shade.

Fluorescent tube of the present invention is provided with 6, is respectively equipped with 3 in described upper lamp shade and the lower lamp shade.

Fluorescent tube of the present invention is cold cathode fluorescent lamp pipe or external electrode fluorescence lamp pipe.

Optical delta diaphragm of the present invention is DBEF or compound brightening film sheet.

Diffusion sheet of the present invention is the diffusion sheet of following diffusion sheet or band brightening effect.

The present invention compared with prior art, adopt two groups of display screens, reduce the metal backing in the display screen, reflector plate back in two groups of display screens is interconnected, and with the structure connection routinely of other parts, constitute the double-side liquid crystal display screen of integral type, can effectively reduce cost, reduce machine volume and space hold.

Description of drawings

Fig. 1 is a structural representation of the present invention.

Embodiment

Below in conjunction with accompanying drawing the present invention is described in further detail.As shown in Figure 1, double-side liquid crystal display screen of the present invention comprises thedisplay screen 12 that two groups of backs are oppositely arranged, reflector plate 5 backs in described two groups ofdisplay screens 12 interconnect, outside reflector plate 5, be connected with light guide plate 4, diffusion sheet 3, optical brighteningdiaphragm 2 andpanel 1 respectively in turn, upper/lower terminal at two groups ofdisplay screens 12 is respectively equipped withupper lamp shade 11,lower lamp shade 13, is respectively equipped with 3 or 4fluorescent tubes 14 inupper lamp shade 11 and thelower lamp shade 13.

Principle of work of the present invention is as follows:

One, afterfluorescent tube 14 energisings,fluorescent tube 14 is luminous, and a light part is directly injected light guide plate 4, and a part is reflexed to light guide plate 4 byupper lamp shade 11 and lower lamp shade 13 (reflectance coating is arranged in the lamp tube cover);

Two, after light enters light guide plate 4, light is broken up by the site on the light guide plate 4, and a part of light enters diffusion sheet 3, and a part directly projects on the reflector plate 5, light process reflector plate 5 reflections that project on the reflector plate 5 enter light guide plate 4 again, inject diffusion sheet 3 again from light guide plate 4 then;

Three, after light enters diffusion sheet 3, evenly broken up, thereby obtain relatively uniform white light, after this white light entered into optical brighteningdiaphragm 2, light is gathered together to be projected on thepanel 1, thereby effectively utilizes light, obtains better brightness;

Four, the light that projects on thepanel 1 passes through the deflection of polaroid and liquid crystal molecule, thereby obtains our needed image.

Fluorescent tube 14 of the present invention is cold cathode fluorescent lamp pipe or external electrode fluorescence lamp; 2 on optical delta diaphragm is DBEF or other compound brightening film sheet; Diffusion sheet 3 is the diffusion sheet of following diffusion sheet or band brightening effect.

The present invention brings out from displaying principle and sends out, and makes full use of resource, has saved material to the full extent, has reduced cost, has improved manufacturing process, and its manufacturability is improved, and has also saved the energy simultaneously.

Claims (5)

1. double-side liquid crystal display screen, comprise display screen (12), it is characterized in that: described display screen (12) has two groups and back to be oppositely arranged, reflector plate (5) back in described two groups of display screens (12) interconnects, outside reflector plate (5), be connected with light guide plate (4), diffusion sheet (3), optical brightening diaphragm (2) and panel (1) respectively in turn, the upper/lower terminal of described two groups of display screens (12) is respectively equipped with upper lamp shade (11) and lower lamp shade (13), is provided with fluorescent tube (14) in described upper lamp shade (11) and the lower lamp shade (13).

2. double-side liquid crystal display screen according to claim 1 is characterized in that: described fluorescent tube (14) is provided with 6, is respectively equipped with 3 in described upper lamp shade (11) and the lower lamp shade (13).

3. double-side liquid crystal display screen according to claim 2 is characterized in that: described fluorescent tube (14) is cold cathode fluorescent lamp pipe or external electrode fluorescence lamp pipe.

4. double-side liquid crystal display screen according to claim 3 is characterized in that: described optical delta diaphragm (2) is DBEF or compound brightening film sheet.

5. double-side liquid crystal display screen according to claim 4 is characterized in that: described diffusion sheet (3) is the diffusion sheet of following diffusion sheet or band brightening effect.

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