CN103337538A

CN103337538A - Solar battery embedded in mobile phone screen

Info

Publication number: CN103337538A
Application number: CN201310224241XA
Authority: CN
Inventors: 张倩
Original assignee: SUZHOU BAINASI OPTICAL TECHNOLOGY Co Ltd
Current assignee: SUZHOU BAINASI OPTICAL TECHNOLOGY Co Ltd
Priority date: 2013-06-07
Filing date: 2013-06-07
Publication date: 2013-10-02

Abstract

A solar battery embedded in a smart mobile phone or other mobile electronic devices is provided. The thickness of the solar battery is ultrathin, the thickness of the mobile phone will be only increased by 0.5mm; the solar battery is embedded at a place below a transparency-electrode active matrix/organic light emitting diode (AMOLED) touch display screen, as a result, the screen can be utilized to receive light, such that the battery can be charged, and in a display process of the screen, the mobile phone can be also charged. Because of the effect of the transmittance of an indium tin oxide (ITO) coating layer in the active matrix/organic light emitting diode (AMOLED) touch display screen and the blocking of a thin film transistor (TFT) circuit, and the final light utilization rate of solar battery sheets is from 30% to 50%. In daytime or under indoor luminous environment, whether the mobile phone is placed on a table or is used, the screen of the most mobile phone will face luminous directions most of time, such that, the embedded solar battery can be charged for a long time, and therefore, the defect of low light utilization rate can be eliminated.

Description

The embedded solar cell of a kind of mobile phone screen

Technical field

The present invention relates to area of solar cell, relate in particular to a kind of solar cell that is embedded in AMOLED touch screen below for smart mobile phone or other mobile electronic devices.

Background technology

The photovoltaic solar charging has begun to be applied to mobile phone, but present solar panel still adopts the scheme of independent peripheral, must link to each other with mobile phone by connecting line during use.The design that has is made into the supplementary protection shell that is assemblied in the mobile phone back side to solar panel, but can increase integral thickness and the weight of mobile phone like this.When utilizing solar recharging in addition, mobile phone must keep the back side up, and the user can't see like this, or uses the touch-screen in mobile phone front.

AMOLED(active matrix organic light-emitting diode or active-matrix organic light emitting diode, Active-matrix organic light-emitting diode) be a kind of Display Technique that is applied to mobile phone.Wherein OLED (organic light emitting diode) describes is that particular type-organic electric-excitation luminescent of film Display Technique shows AM(active matrix body or active-matrix body) refer to Pixel addressing technology behind.

The prior storage that the AMOLED demonstration is sent after being swashed by OLED matrix molecule electricity or the light that is integrated in TFT are controlled the current direction that flows to each pixel as a cover switch.Generally, control this continuous current by two TFT at least on each pixel.The charging of one of them control storage capacitor, another provides certain other voltage source of level, is used for creating the required of constant current pixel and the high electric current of offsetting the passive OLEM of operation.The TFT backplane technology is to make the key of AMOLED display screen.The AMOLED Display Technique more and more is used on mobile phone and the media player, and continues towards low-power consumption, and low-cost direction develops.

Based on the transparency electrode technology, the AMOLED display screen can be made into transparence.If solar panel is embedded in AMOLED touch screen below, will make whole handset touch panel become the sensitive surface of solar cell, and also can be to cell-phone charging in the touch-screen use.

Summary of the invention

In order to overcome the deficiency of external mobile phone solar cell, the invention provides a kind of solar cell that is built in smart mobile phone or other mobile electronic devices, this solar cell thickness is ultra-thin, only can increase the thickness of the about 0.5mm of mobile phone.Say that further this solar cell is built in the AMOLED touch display screen below of transparency electrode, can utilize whole screen to be subjected to light also to be battery charge, and also can be to cell-phone charging in the screen display process.Because the influence of the transmitance of ITO plated film layer in the AMOLED screen, and the blocking of TFT circuit, the light utilization efficiency of final solar battery sheet is 30 ~ 50%.Because by day or have under the room lighting environment, no matter mobile phone is placed on the table or when using, its screen most of the time all can so the time that this built-in solar cell is recharged is longer, thereby remedy the low inferior position of light utilization efficiency towards the direction that light is arranged.

The present invention also provides a kind of transparency electrode AMOLED touch screen structure, comprising: the cover sheet glass of the superiors, and the ITO conducting film that plates below cover glass is used for touch sensor; AMOLED face glass, and the ITO negative electrode that plates on the face glass; The luminous organic material layer; Ito anode array glassy layer; Tft array; The TFT base plate glass.

Solar battery structure below transparency electrode AMOLED provided by the invention is: the upper strata is hot melt adhesion glued membrane (EVA); The intermediate layer is solar battery sheet; Lower floor is hot melt adhesion glued membrane (EVA).

Description of drawings

Fig. 1 is handset touch panel and can assembles schematic diagram by battery very much;

Fig. 2 is touch-screen and structural representation that too can battery;

Fig. 3 is too can the battery charge schematic diagram.

Reference numeral wherein

101 is mobile phone cover sheet glass;

102 is the AMOLED display screen;

103 is solar cell;

201 is cover-plate glass;

202 for being used for the ITO conducting film of touch sensor;

203 is the AMOLED face glass;

204 is the ITO negative electrode;

205 is the organic light emission array layer;

206 is ito anode array glassy layer;

207 is tft array;

208 is the TFT base plate glass;

209 is hot melt adhesion glued membrane (EVA);

210 is solar cell.

Embodiment

Below in conjunction with embodiment and accompanying drawing, invention is elaborated.Same tag is represented same parts in the accompanying drawing.For better understanding, parts shown in the accompanying drawing are to schematically show, and they are not drawn in proportion, and namely the parts of this accompanying drawing are not represented full-size(d), these full-size(d)s all are known for those of ordinary skills, therefore are not described in detail here.

Fig. 1 is handset touch panel and can assembles schematic diagram by battery very much.Wherein handset touch panel adopts OGS(One-Glass-Solution) structure, the ITO conducting film of touch sensor directly is plated on the cover glass.Be the AMOLED display screen 102 of transparency electrode below mobile phone cover sheet glass 101, the below is solar cell 103 again.The effective area of solar cell is suitable with the AMOLED display area.

Fig. 2 is touch-screen and structural representation that too can battery.Wherein: the cover sheet glass 201 of the superiors, and the ITO conducting film 202 that plates below cover glass is used for touch sensor.Here cover sheet glass 201 is the alumina silicate glass of chemical tempering, and thickness is that 0.4 ~ 0.9mm. cover sheet glass and ITO plated film below is AMOLED face glass 203, and the ITO cathode layer 204 that is used for organic light emission that plates at face glass.It is organic luminous layer below the ITO cathode layer Array205, wherein each organic light-emitting units is a display pixel.The organic luminous layer below is corresponding with pixel to be ito anode array glassy layer 206, and the below is tft array layer 207 again.At least control continuous currents by two TFT on each pixel.The charging of one of them control storage capacitor, another provides certain other voltage source of level, is used for creating the constant current pixel and offsets the high electric current that moves passive OLEM.Tft array layer below is TFT base plate glass 208.

TFT base plate glass below is hot melt adhesion glued membrane (EVA) 209, as the protective layer of solar battery sheet 210, is another layer hot melt adhesion glued membrane (EVA) 209 below the battery plain film.Two EVA films and solar battery sheet be common to constitute built-in solar cell, and wherein solar battery sheet thickness is 0.2 ~ 0.3mm, and the EVA film thickness is 0.1mm, and the thickness of whole built-in solar cell is 0.4 ~ 0.5mm.The kind of solar cell includes, but are not limited to: silicon-based semiconductor battery, CdTe hull cell, CIGS hull cell, dye-sensitized film battery, organic material battery.

When the AMOLED display screen was worked, the ito anode array was controlled and is recharged by TFT, and organic light-emitting units is stimulated upwards luminous.Certainly the part light of organic luminous layer can see through anode array layer and TFT layer arrival solar cell, and these light can be used to generating.

Fig. 3 is for too can the battery charge schematic diagram.No matter AMOLED display screen work or do not work, extraneous light all can see through cover sheet glass and the AMOLED display screen of mobile phone, arrives solar battery sheet 210.Because the influence of the transmitance of ITO plated film layer, and the blocking of TFT circuit, the light utilization efficiency of final solar battery sheet is 30 ~ 50%.Because by day or have under the room lighting environment, no matter mobile phone is placed on the table or when using, its screen most of the time all can so the time that this built-in solar cell is recharged is longer, thereby remedy the low inferior position of light utilization efficiency towards the direction that light is arranged.

Claims

1. solar cell that is built in smart mobile phone or other mobile electronic devices, its special type is, this solar cell is built in the AMOLED touch display screen below of transparency electrode, can utilize whole screen to be subjected to light also to be battery charge, and also can be to cell-phone charging in the screen display process.

2. solar cell according to claim 1 is characterized in that, the kind of solar cell includes, but are not limited to: silicon-based semiconductor battery, CdTe hull cell, CIGS hull cell, dye-sensitized film battery, organic material battery.

3. according to claim 1 and the described solar cell of claim 2, it is characterized in that the upper strata of battery is hot melt adhesion glued membrane (EVA); The intermediate layer is solar battery sheet; Lower floor is hot melt adhesion glued membrane (EVA).

4. according to aforesaid right 1 described AMOLED touch display screen, it is characterized in that the negative electrode of organic light emission array and anode all use the transparent ITO conducting film of plating on glass to realize.

5. any described AMOLED touch display screen in requiring according to aforesaid right it is characterized in that the superiors are the cover sheet glass of mobile phone, and the ITO conducting film that plates is used for touch sensor below cover glass; Cover sheet glass and ITO plated film below be the AMOLED face glass, and the ITO cathode layer for organic light emission that plates at face glass; Be the organic luminous layer array below the ITO cathode layer, wherein each organic light-emitting units is a display pixel; The organic luminous layer below is corresponding with pixel to be ito anode array glassy layer, and the below is the tft array layer again; Tft array layer below is the TFT base plate glass.