CN202794790U - Electronic paper display (EPD) display screen with built-in light source - Google Patents
Electronic paper display (EPD) display screen with built-in light source Download PDFInfo
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- CN202794790U CN202794790U CN201220422933.6U CN201220422933U CN202794790U CN 202794790 U CN202794790 U CN 202794790U CN 201220422933 U CN201220422933 U CN 201220422933U CN 202794790 U CN202794790 U CN 202794790U
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- guide plate
- display screen
- light guide
- epd
- light source
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Abstract
The utility model provides an electronic paper display (EPD) display screen with a built-in light source. A light guide plate and a light-emitting diode (LED) backlight module are encapsulated in the EPD display screen; one end of a light inlet of the light guide plate is wedge-shaped, so that the area of the light source at a leading-in end is effectively enlarged; an optical clear adhesive (OCA) glue line is coated on the light guide plate to effectively form a light cross; at the same time, an LED lamp is precisely positioned by using a two-sided flexible printed circuit (FPC) circuit board, so that the efficiency of the LED lamp is improved. The EPD display screen with the built-in light source is wide in range of application, low in display cost, and capable of improving efficiency, saving human resources and papers, avoiding display errors, and improving visibility when the visibility is low. The EPD display screen is particularly used in electronic paper display products such as electronic paper cell phones, electronic paper readers and electronic shelf labels.
Description
Technical field
The utility model relates to field of electronic display, particularly a kind of EPD display screen of built-in light source.
Background technology
The EPD display screen is a kind of display screen that utilizes electrophoretic display technology (EPD) and make.Electrophoretic display technology system will deceive, the charged particle of white dichromatism is packaged in the microcapsule structure, controlled the lifting moving of different electric charge black and white particles by extra electric field, to present the display effect of black and white monochrome, under the effect of electric field, two kinds of different particles of black and white are not stopped transport moving, and when the particle of white rose to upper surface, all ambient lightings were mapped to upper surface and are reflected fully, so just formed white state, namely the state of paper; Behind the exchange electrode, the particle of two kinds of colors can switch, so white particle just can to below gone, above the particle of black was arrived, light was all absorbed by the particle of black, the result just causes black, has also just formed white and black displays.In addition, the state that mixing also can be arranged at upper surface, two kinds of proportional mixing of different particles, can form like this black and white and the different colours of gray-level is arranged, because the EPD technology can present the white and black displays effect of high reflectance, high contrast, and memory effect is arranged simultaneously, after the extra electric field cancellation, the current demonstration that presents of instant playback is such as the content as shown in same the printed paper.Owing to have a bistability, after the power electrical field cancellation, still on the EPD screen, image kept some months or several years.
Have the structure of EPD display screen now as shown in Figure 1, it mainly is made of tempered glass 1, touch-screen 2, electronic ink layer 3 and glass substrate 4.Wherein, glass substrate 4 adopts alkali-free glass, pastes hot melt adhesive layer by hot pressing, with electronic ink layer 3 combinations.Electronic ink layer 3 is comprised of ITO electrode film, electric ink capsule, hot melt adhesive layer.Touch-screen 2 passes through the gelatine layer seamless adhesion in the ITO of electronic ink layer 3 electrode film upper surface.Tempered glass 1 and touch-screen 2 are by the gelatine layer seamless adhesion.Carry out encapsulation process by frame glue around tempered glass 1, touch-screen 2, electronic ink layer 3, the glass substrate 4.
Because existing EPD display screen, himself does not have light source, therefore only just can see under physical environment light, and in the situation of visual environment insufficient light, just the normal clear content of seeing the EPD display screen.
The utility model content
For existing EPD display screen normal clear problem of seeing in the situation of visual environment insufficient light, the applicant provides a kind of EPD display screen of built-in light source through Improvement, adopts its function of structure improvement of LED-backlit source and light guide plate.
The technical solution of the utility model is as follows:
A kind of EPD display screen of built-in light source comprises the tempered glass, touch-screen, light guide plate, electronic ink layer and the glass substrate that stack gradually; Described tempered glass is bonding by gelatine layer and touch-screen, described touch-screen is fixed on the light guide plate by glue, the another side of described light guide plate is bonding by glue and electronic ink layer, and described glass substrate is pasted hot melt adhesive layer and electronic ink layer combination by hot pressing; The one side of two-sided FPC wiring board is connected with the LED lamp, and another side is fixed on the described glass substrate; The LED lamp faces an end of described light guide plate.
Its further technical scheme is: a described light guide plate end relative with the LED lamp is wedge shape.
Its further technical scheme is: be coated with OCA glue between described light guide plate and the LED lamp.
Its further technical scheme is: described two-sided FPC wiring board comprises the first insulation course, the first Copper Foil, substrate, the second Copper Foil and the second insulation course that stacks gradually.
Useful technique effect of the present utility model is:
The utility model encapsulates light guide plate and LED-backlit source module in the EPD display screen, adopt effective light filling measure, improves illuminance; Light guide plate light inlet one end uses wedge shape, effectively enlarges the area that imports the end light source; The light guide plate place scribbles the OCA glue-line, effectively forms light beam; Use simultaneously two-sided FPC wiring board accurately to locate the LED lamp, improve the efficient of LED lamp.The utility model usable range is extensive, show with low cost, but raising efficiency is saved human resources and paper, avoids showing mistake, improves visibility in the low situation of visibility, plays the effect of vision protection.Be specially adapted to the Electronic Paper such as Electronic Paper mobile phone, electronic paper reader and electronic shelf label and show product.
Description of drawings
Fig. 1 is the sectional structure chart of existing EPD display screen.
Fig. 2 is sectional structure chart of the present utility model.
Fig. 3 is partial enlarged drawing of the present utility model.
Fig. 4 is the sectional structure chart of two-sided FPC wiring board.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is described further.
As shown in Figure 2, the utility model comprises tempered glass 1, touch-screen 2, light guide plate 5, electronic ink layer 3 and the glass substrate 4 that stacks gradually.Tempered glass 1 is by gelatine layer seamless adhesion touch-screen 2, and touch-screen 2 is fixed on above the light guide plate 5 by glue, and light guide plate 5 and electronic ink layer 3 are also by the glue seamless adhesion, and glass substrate 4 is pasted hot melt adhesive layer by hot pressing, with electronic ink layer 3 combinations.
As shown in Figure 3, the one side of two-sided FPC wiring board 8 is connected with LED lamp 7, and another side is fixed on the glass substrate 4.LED lamp 7 faces an end of light guide plate 5.That light guide plate 5 has is ultra-thin, superbright, leaded light evenly, the distinguishing features such as energy-saving and environmental protection, no dark space, durable, installation and maintenance simple and fast.In order to improve leaded light efficient, the light inputting end of the light guide plate 5 that luminophor LED lamp 7 is placed is processed into wedge shape, while make light guide plate 5 from light inlet be seen as be thick, be the thin wedge shape that is, can effectively enlarge the area that imports the end light source.Simultaneously, between light guide plate 5 and LED lamp 7, smear very thin one deck OCA glue 6, form light beam, be conducive to light and evenly disperse.
Based on said structure, the utility model adopts light guide plate 5, OCA glue 6 and LED lamp 7, improves existing structure.LED lamp 7 is by luminous OCA glue 6 and the light guide plate 5 of passing through successively of power drives, and its light of diffuse reflection evenly shows the EPD display screen, can regulate the brightness that button is regulated light guide plate 5 by power drives.
As shown in Figure 4, two-sided FPC wiring board 8, its structure is comprised of insulation course, Copper Foil, substrate, Copper Foil, insulation course from top to bottom successively, fixes by solid.Adopt two-sided FPC wiring board 8, can prevent that the brush screen from disturbing, play shielding action, shorten the interference of light.
Above-described only is preferred implementation of the present utility model, and the utility model is not limited to above embodiment.Be appreciated that other improvement and variation that those skilled in the art directly derive or associate under the prerequisite that does not break away from basic conception of the present utility model, all should think to be included within the protection domain of the present utility model.
Claims (4)
1. the EPD display screen of a built-in light source is characterized in that: comprise the tempered glass (1), touch-screen (2), light guide plate (5), electronic ink layer (3) and the glass substrate (4) that stack gradually; Described tempered glass (1) is bonding by gelatine layer and touch-screen (2), described touch-screen (2) is fixed on the light guide plate (5) by glue, the another side of described light guide plate (5) is bonding by glue and electronic ink layer (3), and described glass substrate (4) is pasted hot melt adhesive layer and electronic ink layer (3) combination by hot pressing; The one side of two-sided FPC wiring board (8) is connected with LED lamp (7), and another side is fixed on the described glass substrate (4); LED lamp (7) faces an end of described light guide plate (5).
2. the EPD display screen of described built-in light source according to claim 1, it is characterized in that: described light guide plate (a 5) end relative with LED lamp (7) is wedge shape.
3. the EPD display screen of described built-in light source according to claim 1 is characterized in that: be coated with OCA glue (6) between described light guide plate (5) and the LED lamp (7).
4. the EPD display screen of described built-in light source according to claim 1, it is characterized in that: described two-sided FPC wiring board (8) comprises the first insulation course, the first Copper Foil, substrate, the second Copper Foil and the second insulation course that stacks gradually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220422933.6U CN202794790U (en) | 2012-08-24 | 2012-08-24 | Electronic paper display (EPD) display screen with built-in light source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220422933.6U CN202794790U (en) | 2012-08-24 | 2012-08-24 | Electronic paper display (EPD) display screen with built-in light source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202794790U true CN202794790U (en) | 2013-03-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220422933.6U Expired - Lifetime CN202794790U (en) | 2012-08-24 | 2012-08-24 | Electronic paper display (EPD) display screen with built-in light source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202794790U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105094484A (en) * | 2015-07-31 | 2015-11-25 | 武汉华星光电技术有限公司 | Touch screen flat panel display device |
| CN105116989A (en) * | 2015-08-07 | 2015-12-02 | 小米科技有限责任公司 | Mobile terminal |
| CN105240696A (en) * | 2015-10-27 | 2016-01-13 | 林家英 | Substrate with side-face light emitting function and front-face-and-back-face heat dissipation function and manufacturing method thereof |
| CN107003702A (en) * | 2014-12-11 | 2017-08-01 | 亚马逊科技公司 | Electronic equipment stack assemblies |
| CN110543249A (en) * | 2018-05-29 | 2019-12-06 | 青岛海信移动通信技术股份有限公司 | Ink screen module and display device |
-
2012
- 2012-08-24 CN CN201220422933.6U patent/CN202794790U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107003702A (en) * | 2014-12-11 | 2017-08-01 | 亚马逊科技公司 | Electronic equipment stack assemblies |
| CN107003702B (en) * | 2014-12-11 | 2019-05-03 | 亚马逊科技公司 | Electronic equipment stack assemblies |
| CN105094484A (en) * | 2015-07-31 | 2015-11-25 | 武汉华星光电技术有限公司 | Touch screen flat panel display device |
| CN105094484B (en) * | 2015-07-31 | 2018-06-19 | 武汉华星光电技术有限公司 | A kind of touch screen panel display apparatus |
| CN105116989A (en) * | 2015-08-07 | 2015-12-02 | 小米科技有限责任公司 | Mobile terminal |
| CN105240696A (en) * | 2015-10-27 | 2016-01-13 | 林家英 | Substrate with side-face light emitting function and front-face-and-back-face heat dissipation function and manufacturing method thereof |
| CN110543249A (en) * | 2018-05-29 | 2019-12-06 | 青岛海信移动通信技术股份有限公司 | Ink screen module and display device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 214028 J1 factory building, 3 block, exit processing zone, new Wu, Jiangsu, Wuxi Patentee after: WUXI VISION PEAK TECHNOLOGY Co.,Ltd. Address before: 214028, J1, block 3, export processing zone, Wuxi New District, Jiangsu Patentee before: WUXI VISION PEAK TECHNOLOGY Co.,Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20130313 |
|
| CX01 | Expiry of patent term |