CN202217253U

CN202217253U - Reflecting touch-control displayer

Info

Publication number: CN202217253U
Application number: CN2011203543321U
Authority: CN
Inventors: 罗建兴; 陈家栋; 黄萍萍; 江耀诚
Original assignee: TPK Touch Solutions Xiamen Inc
Current assignee: TPK Touch Solutions Xiamen Inc
Priority date: 2011-09-12
Filing date: 2011-09-12
Publication date: 2012-05-09
Anticipated expiration: 2021-09-12

Abstract

The utility model provides a reflecting touch-control displayer which comprises a reflecting display device, a first bonding layer, a light guide plate, a second bonding layer and a touch-control screen, wherein the light guide plate is arranged on the upper surface of the reflecting display device by the fitting of the first bonding layer, the touch-control screen is arranged on the upper surface of the light guide plate by the fitting of the second bonding layer, the first bonding layer and the second bonding layer are made in a way that a liquid bonding material is changed from a liquid state to a solid state, and the refraction coefficient of the first bonding layer and the second bonding layer is less than that of the light guide plate. Therefore, the manufacturing yield of the reflecting touch-control displayer can be improved fast, and the manufacturing cost of the reflecting touch-control displayer can be reduced.

Description

The reflecting type touch-control display

Technical field

The utility model is relevant for display, particularly relevant for the reflecting type touch-control display.

Background technology

Please with reference to Fig. 1, Fig. 1 is the sectional view of traditional reflecting type touch-control display.Traditional reflecting type touch-control display 1 comprises touch screen 10,

gluing layer

11,15,

Solid glue

12,14, LGP 13, reflective display 16.

Solid glue

12 and 14 fits in the upper surface and the lower surface of LGP 13 respectively.

Gluing layer

11,15 is optics of liquids glue normally.The LGP 13 of applying

Solid glue

12,14 sees through gluing layer 15 and fits in surface on the reflective display reflective display 16.Touch screen 10 sees through gluing layer 11 and fits in surface on the Solid glue 12.

Outside abundance during light source, outer light source is from the upper surface incident of touch screen 10, reflective display 16 through the outer light source of reflection with literal or pattern displaying on screen, the confession user watches.Yet, when outer light source is not enough, reflective display 16 can't be through the faint light source of reflection when literal or pattern displaying are on screen, need a built-in light source 17.This built-in light source 17 can be arranged on the side of LGP 13, makes light source 17 inject LGP 13.The refractive index of LGP 13 can be designed as greater than the refractive index of Solid glue 12 with Solid glue 14.For example, the refractive index of LGP 13 is 1.52, and the refractive index of

Solid glue

12,14 is 1.47.According to optical principle, when light when optically denser medium incides the optically thinner medium, if incident angle is greater than 75 ° of arcsin (1.47/1.52) ≈, light can total reflection in optically denser medium, luminous energy is limited in 13 li of LGPs by this.See through and suitably to design LGP 13, can optically focused when built-in light source will be propagated in LGP 13, and reach the function that is similar to backlight, there is not the deficiency of backlight to remedy reflective display.

Yet the number of plies that traditional reflecting type touch-control display 1 is fitted is many, and processing step corresponding with it is also complicated, and also can reduce the optical property of product.In addition, Solid glue 12 is inequality with the colloidality of gluing layer 11, so that Solid glue 12 and gluing layer 11 after applying, are not understood toughness is good and the situation of being separated from each other occurs.

Summary of the invention

The utility model provides a kind of reflecting type touch-control display; It is select for use refractive index less than the optics of liquids glue of LGP as laminated material; To omit the use of Solid glue, reduced the number of times of fitting by this, simplified processing procedure; Improved the optical property of product, also saving needs solution optics of liquids glue and Solid sticker to close the not good problem of viscosity that is produced.

The utility model provides a kind of reflecting type touch-control display, and it comprises reflective display, first gluing layer, LGP, second gluing layer and touch screen.LGP sees through the applying of first gluing layer and is arranged at surface on the reflective display.Touch screen sees through the applying of second gluing layer and is arranged at surface on the LGP.First gluing layer and second gluing layer are to be converted into solid-state and to form from liquid state by a liquid binding material, and the refraction coefficient of first gluing layer and second gluing layer is all less than the refraction coefficient of LGP.

The refraction coefficient of above-mentioned LGP is between 1.47 to 2.02.The refraction coefficient of first gluing layer and second gluing layer is between 1.10 to 2.00.Above-mentioned reflective display more comprises reflective display screen and diffusion sheet.Diffusion sheet is arranged at surface on the reflective display screen.Perhaps, reflective display comprises reflective display screen, and the built-in diffusion sheet of reflective display screen.First gluing layer and this second gluing layer comprise silicone resin (silicone resin) or acryl resin (acrylic resin).Liquid binding material is liquid optical cement.First gluing layer and second gluing layer are ultraviolet cured adhesives.Said reflecting type touch-control display more comprises soft arranging wire.Soft arranging wire is arranged at the side of LGP, and soft arranging wire comprises a plurality of light emitting diodes, is used to provide built-in light source.

In sum, the reflecting type touch-control display of the touch circuit figure that the utility model provided, its select for use refractive index less than the optics of liquids glue of LGP as laminated material, omitting the use of Solid glue, thereby reduce manufacturing cost; Also reduced simultaneously the number of times of fitting, thereby reduced, and then improved the fine ratio of product of reflecting type touch-control display owing to the bad probability that produces defective products of fitting.

For enabling further to understand the characteristic and the technology contents of the utility model; See also following detailed description and accompanying drawing about the utility model; But these explanations with appended graphic only be to be used for explaining the utility model, but not the interest field of the utility model is done any restriction.

Description of drawings

Fig. 1 is the sectional view of traditional reflecting type touch-control display.

Fig. 2 is the sectional view of the reflecting type touch-control display of the invention embodiment.

Fig. 3 is the process flow diagram of the manufacturing approach of the reflecting type touch-control display of the invention embodiment.

Fig. 4 is the diagrammatic cross-section of the reflecting type touch-control display of the invention embodiment corresponding to its step of manufacturing S31.

Fig. 5 is the diagrammatic cross-section of the reflecting type touch-control display of the invention embodiment corresponding to its step of manufacturing S32.

Embodiment

Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail.

Please with reference to Fig. 2, Fig. 2 is the sectional view of the reflecting type touch-control display of the invention embodiment.Reflecting type touch-control display 2 comprises touch screen 20, first gluing layer 23, second gluing layer 21, LGP 22, reflective display 24.LGP 22 sees through first gluing layer 23 and fits in surface on the reflective display 24.Touch screen 20 sees through second gluing layer 21 and fits in surface on the LGP 22.

Touch screen 20 can be the glass screen with composite bed.Usually the glass surface of each layer of glass screen scribble indium tin oxide (Indium Tin Oxide, ITO), to form the electrically conducting transparent figure of touch-control circuit.In addition, the superiors of touch screen 10 (outermost layer) can have one deck glassivation.

Reflective display 24 is the display screens that do not need backlight, and can for example be electrophoretic display panel.Reflective display 24 utilizes the illumination of surrounding environment light, and the literal or the pattern that can let the user watch reflective display 24 to be shown.Reflective display 24 can focus on the direction perpendicular to reflective display 24 with low-angle bright dipping, to improve the briliancy that the user observes ground literal or pattern.Reflective display 24 generally includes reflective display screen and diffusion sheet (not shown).Diffusion sheet can be arranged at surface on the reflective display screen.Perhaps, reflective display 24 comprises reflective display screen, and the built-in diffusion sheet of reflective display screen.

First gluing layer 23 can comprise silicone resin (silicone resin) or acryl resin (acrylic resin).First gluing layer 23 can be to be converted into solid-state and to form from liquid state by liquid binding material.Liquid bonding material is liquid glue normally, for example: liquid optical cement.First gluing layer 23 can be ultraviolet cured adhesive or be called ultraviolet light hot-setting adhesive, the wet solid glue of ultraviolet light.Ultraviolet cured adhesive can solidify by the irradiation of ultraviolet light, so that it has stable tackness.Also has the characteristic that lets visible light penetrate after the ultraviolet light polymerization adhesive curing.

The refraction coefficient of LGP 22 is between 1.47 to 2.02.For example, LGP 22 can be that refraction coefficient is the glass between 1.47 to 2.02.LGP 22 usefulness so that the light that built-in light source 17 is produced in LGP 22, propagate.Reflecting type touch-control display 2 can comprise soft arranging wire (not shown).Soft arranging wire is arranged at the side of LGP 22, and soft arranging wire comprises a plurality of light emitting diodes, is used to the light source 17 that provides built-in.The refraction coefficient of first gluing layer 23 is less than LGP 22.The refraction coefficient of second gluing layer 21 is also less than LGP 22.The refraction coefficient of first gluing layer 23 and second gluing layer 21 is between 1.10 to 2.00.For example, the refraction coefficient of LGP 22 is 1.52, and the refraction coefficient of first gluing layer 23 and second gluing layer 21 is 1.47.

Because total reflection can take place when less than LGP 22, making the interior incident angle of light on the interface of the LGP 22 and second gluing layer 21 of LGP 22 greater than critical angle in the refraction coefficient of first gluing layer 23 and second gluing layer 21.When in like manner, the incident angle of light on the interface of the LGP 22 and first gluing layer 23 in the LGP 22 is greater than critical angle also total reflection can take place.Therefore, the light that built-in light source is injected in the LGP 22 is locked in LGP 22, and LGP 22 can reach the effect of optically focused by this.So, built-in light source can remedy the deficiency of reflective display 24 no backlights, so that the user can clearly see literal or the pattern that reflective display 24 is shown.

Second gluing layer 21 can comprise silicone resin (silicone resin) or acryl resin (acrylic resin).Second gluing layer 21 also can be to be converted into solid-state and to form from liquid state by liquid binding material.Liquid bonding material is liquid glue normally, for example: liquid optical cement.Adopt the reason of liquid binding material as main laminated material; Be because the refractive index of liquid binding material can see through the liquid binding material of allotment; Can change the refractive index of liquid binding material, select the proper incident angle then, can reach the effect of total reflection.Another reason is, solid gum is too thin usually, and the applying effect is bad, and liquid glue has certain thickness.

Second gluing layer 21 also can be a ultraviolet cured adhesive.Need be noted that the refraction coefficient of second gluing layer 21 can be identical with first gluing layer 23, but therefore the utility model does not exceed.Second gluing layer 21 uses the benefit of identical index of refraction material to be with first gluing layer 23, and second gluing layer 21 and first gluing layer 23 can be same materials, and the production cost of reflecting type touch-control display 2 can be lowered by this.

Please be simultaneously with reference to Fig. 2 and Fig. 3, Fig. 3 is the process flow diagram of the manufacturing approach of the reflecting type touch-control display of the invention embodiment.This manufacturing approach may further comprise the steps.At first, in step S31, through first gluing layer 23, applying LGP 22 is the surface on reflective display 24.Then; In step S32; Through second gluing layer 21, sticking touch control screen 20 surface on LGP 22, wherein; First gluing layer 23 and second gluing layer 21 are to be converted into solid-state and to form from liquid state by liquid binding material, and the refraction coefficient of first gluing layer 23 and second gluing layer 21 is all less than the refraction coefficient of LGP 22.

Please be simultaneously with reference to Fig. 3 and Fig. 4, Fig. 4 is the diagrammatic cross-section of the reflecting type touch-control display of the invention embodiment corresponding to its step of manufacturing S31.In step S31, through first gluing layer 23, the section of applying LGP 22 formed structure in back, surface on reflective display 24 is as shown in Figure 4.First gluing layer 23 is to use liquid binding material, and said liquid binding material can be with reference to the explanation of last embodiment.

Please be simultaneously with reference to Fig. 3 and Fig. 5, Fig. 5 is the diagrammatic cross-section of the reflecting type touch-control display of the invention embodiment corresponding to its step of manufacturing S32.In step S32, through second gluing layer 21, the section of sticking touch control screen 20 formed structure in back, surface on LGP 22 is as shown in Figure 5.First gluing layer 23 also is to use liquid binding material, and said liquid binding material can be with reference to the explanation of last embodiment.

The manufacturing approach of present embodiment forms reflecting type touch-control display 2, and reflecting type touch-control display 2 can repeat no more at this with reference to the explanation of last embodiment.In addition, after step S32 finishes, can built-in light source 17 be arranged at the side of LGP 22, so that the light incident LGP 22 that built-in light source 17 is produced.

According to the invention embodiment, above-mentioned reflecting type touch-control display and manufacturing approach thereof can promote the fine ratio of product of reflecting type touch-control display, and then reduce manufacturing cost.In addition, the manufacturing step of reflecting type touch-control display can be simplified, and the reflecting type touch-control display also can be kept the good optical performance.

The above is merely the preferred embodiment of the utility model; Not in order to restriction the utility model; All within the spirit and principle of the utility model, any modification of being made, be equal to replacement, improvement etc., all should be included within the scope of the utility model protection.

Claims

1. a reflecting type touch-control display is characterized in that, comprising:

One reflective display;

One first gluing layer;

One LGP, this LGP sees through the applying of this first gluing layer and is arranged at surface on this reflective display;

One second gluing layer; And

One touch screen, this touch screen sees through the applying of this second gluing layer and is arranged at surface on this LGP;

Wherein, this first gluing layer and this second gluing layer are to be converted into solid-state and to form from liquid state by a liquid binding material, and the refraction coefficient of this first gluing layer and this second gluing layer is all less than the refraction coefficient of this LGP.

2. reflecting type touch-control display according to claim 1 is characterized in that the refraction coefficient of this LGP is between 1.47 to 2.02.

3. reflecting type touch-control display according to claim 1 is characterized in that, the refraction coefficient of this first gluing layer and this second gluing layer is between 1.10 to 2.00.

4. reflecting type touch-control display according to claim 1 is characterized in that, this reflective display comprises:

One reflective display screen; And

One diffusion sheet is arranged at surface on this reflective display screen.

5. reflecting type touch-control display according to claim 1 is characterized in that, this reflective display comprises a reflective display screen, wherein the built-in diffusion sheet of this reflective display screen.

6. reflecting type touch-control display according to claim 1 is characterized in that, first gluing layer and this second gluing layer comprise silicone resin (silicone resin) or acryl resin (acrylic resin).

7. reflecting type touch-control display according to claim 1 is characterized in that, this liquid state binding material is liquid optical cement.

8. reflecting type touch-control display according to claim 1 is characterized in that, this first gluing layer and this second gluing layer are ultraviolet cured adhesives.

9. reflecting type touch-control display according to claim 1 is characterized in that, more comprises:

One soft arranging wire is arranged at the side of this LGP, and wherein, this soft arranging wire comprises a plurality of light emitting diodes, is used to provide built-in light source.