CN208721963U - A kind of display plasma-based mould group with reflection enhancement structure - Google Patents

Abstract

The utility model belongs to electronic display technology field, it is related to a kind of display plasma-based mould group with reflection enhancement structure, transparent electrode including pixel electrode and above pixel electrode, display plasma-based is equipped between the pixel electrode and transparent electrode, the transparent electrode includes the conductive layer being covered in the display plasma-based, the transparent electrode substrate being covered on the conductive layer and the transparent reflecting layer for being used to enhance light being arranged between conductive layer and display plasma-based, the transparent reflecting layer is made of several equally distributed grooves, and the notch and conductive layer contact of groove, the bottom of groove and side wall are contacted with display plasma-based；The utility model enhances the display brightness of display module by increasing reflection enhancement structure in transparent electrode, and then expands visual angle, is finally more clear the image of display.

Description

A kind of display plasma-based mould group with reflection enhancement structure

Technical field

The utility model relates to a kind of display plasma-based mould group, especially a kind of display plasma-based mould with reflection enhancement structure Group belongs to electronic display technology field.

Background technique

There is a phenomenon where swimmings under electric field action using the colloidal solid of electrification for electrophoresis showed, pass through electric field driven difference The electrophoresis particle of photoelectric properties realizes the display of image and text, compared with known display technology, electrophoresis showed have as Lower feature: flexible pliable, light-weight, thickness is thin, and contrast is high, and low energy consumption, and visible angle is big, readable under sunlight, has figure As bistable state, it is easy the features such as large area produces.

Electrophoretic display technology is initially suggested in 1970s.It discloses and includes at least in patent US3892568 A kind of preparation process of the electrophoretic display materials of electrophoresis particle.It is disclosed in patent JP1086116 and at least contains a kind of electrophoresis Particle, and electrophoresis liquid is by the electrophoretic display system of microcapsule coated.It discloses in US6930818 and is coated using micro-cup structure The Electronphoretic display unit of electrophoresis liquid.In patent US5930026, US5961804, US6017584 and US6120588, disclose The Electronphoretic display unit of microcapsule coated, wherein display plasma-based includes the electrophoresis grain of two or more different photoelectric properties Son.Prior art before making a general survey of, micro-cup and microcapsule-type electric ink display screen are all based on small cavity structure, i.e., micro- Cup and microcapsules.The effect of both micro-structures is to disperse cladding display plasma-based.

Although the display screen of two kinds of structures is all applied in actual product, two kinds of structures are had the drawback that

1) microcapsules and micro-cup itself do not have display function, although its composition material is mostly transparent, the material of covering power difference Material, but dosage is larger in entire electrophoresis showed system, will affect the display effect of entire display screen, and light passes through micro-cup or micro- Capsule reflects brightness and greatly reduces, and simultaneous contrast's decline, resolution ratio decline and service life reduce；

2) presence of microcapsules and micro-cup structure undoubtedly thickeies the thickness of entire electrophoretic display materials layer, so that display screen pair Decline than degree and resolution ratio, response speed is slow, and driving voltage is high, refreshes slowly, power consumption is big, and operating temperature range is narrow；

3) microcapsules and micro-cup structure preparation process are excessively complicated, cause difficulty and waste on manufacturing, cause good Rate decline, waste of material, manufacturing cost are high.

Summary of the invention

The purpose of this utility model is provided a kind of with reflection enhancement structure aiming at the problem that current electronic display It shows plasma-based mould group and its manufacturing method, enhances the display of display module by increasing reflection enhancement structure in transparent electrode Brightness, and then expand visual angle, finally it is more clear the image of display.

To realize the above technical purpose, the technical solution of the utility model is: a kind of display with reflection enhancement structure Plasma-based mould group, the transparent electrode including pixel electrode and above pixel electrode, which is characterized in that the pixel electrode and thoroughly Be equipped with display plasma-based between prescribed electrode, the transparent electrode include the conductive layer being covered in the display plasma-based, be covered on it is described Transparent electrode substrate on conductive layer and conductive layer is set and show between plasma-based for enhancing the transparent reflecting layer of light, institute It states transparent reflecting layer to be made of several equally distributed grooves, and the notch and conductive layer contact of groove, the bottom and side of groove Wall is contacted with display plasma-based.

Further, the transparent reflecting layer groove for enhancing light include the dome-type groove of strip, hemispherical groove, Strip prismatic groove or tapered trenches, and the height of groove is between 0.5-20 microns, width is between 1-20 microns.

Further, the material of the transparent reflecting layer for enhancing light include transparent polymer, it is transparent inorganic object, transparent Metal or transparent composite；The conductive layer is ITO, silver nanowires, graphene or carbon nanotube, the transparent electrode substrate For glass, plastics, the glass with protective layer or with the plastics of protective layer, the plastics include PI, PEN, PET.

Further, the pixel electrode is embedded on TFT glass substrate, and passes through screening between pixel electrode and display plasma-based Light insulating cement water layer sticks；The pixel electrode includes segment encode and dot matrix, and the material of the pixel electrode is glass or plastics, The plastics include PI, PEN or PET.

Further, the display plasma-based surrounding is provided with liner frame, the liner frame and conductive interlayer, described aobvious Show that plasma-based edge and conductive interlayer are equipped with viewing area protective layer.

Further, support microballoon, the material packet of the support microballoon can be added in the liner frame and display plasma-based Resin microsphere, glass microsphere are included, and supporting the diameter of microballoon is 2-60 microns.

Further, electrophoresis particle different comprising at least two photoelectric properties in the display plasma-based, the display electricity The thickness of slurry is between 2-300 microns, and the viscosity of electrophoresis liquid is 100-100000 centipoise in display plasma-based (2).

It further, further include IC integrated circuit modules and flexible circuit board, the IC integrated circuit modules and flexible electrical Road plate is located at the side of liner frame, and is adhered on the pixel electrode by conductive adhesive tape ACF, the IC integrated circuit die Pass through blue glue sealing around block, flexible circuit board and conductive adhesive tape ACF on the pixel electrode.

In order to further realize the above technical purpose, the utility model also proposes a kind of manufacturer for showing plasma-based mould group Method, characterized in that include the following steps:

Pixel electrode is embedded in TFT glass substrate by step 1, and the TFT glass substrate that would be embedded with pixel electrode is placed On dispensing platform；

Step 2 puts sealant on the pixel electrode, forms liner frame；

Step 3 silk-screen in the frame of liner frame composition shows plasma-based, and the surrounding of the display plasma-based is by liner side Frame surrounds；

Step 4 is connect in liner frame internal coat conductive silver paste, the conductive silver paste with pixel electrode；

Step 5 forms several equally distributed grooves by way of printing, coating, photoetching, vapor deposition on the electrically conductive The transparent reflecting layer of structure；

Step 6 successively presses viewing area protective layer, the conductive layer coated with transparent reflecting layer, transparent electrode substrate On entirely liner frame, and conductive layer be equipped with transparent reflecting layer that down, and solidified；The conductive silver paste and thoroughly The conductive layer of prescribed electrode connects；

Step 7 cuts away marginal portion viewing area protective layer, conductive layer, transparent electrode substrate, exposes on pixel electrode The predetermined position of IC integrated circuit modules binding；

IC integrated circuit modules and flexible circuit board are passed through the side that conductive adhesive tape is adhered to pixel electrode by step 8 Edge；

Step 9 will be electric in pixel by blue glue sealing around IC integrated circuit modules, flexible circuit board and conductive adhesive tape On extremely, the manufacture of electric ink display screen is completed.

Further, in the step 1, the pixel electrode surface can coat shading insulating cement water layer in advance, described In step 2, support microballoon can be added in the sealant in advance, in the step 3, can add in advance in the display plasma-based Add support microballoon.

Compared with conventional electronic ink display screen, the utility model is had the advantage that

1) compared to traditional micro-structure electrophoretic display panel, since traditional microcapsules or micro-cup are not involved in display, meeting Display effect is influenced, the utility model shows the electrophoresis for containing different photoelectric properties in the electrophoresis liquid of plasma-based using display plasma-based Particle eliminates microcapsules or micro-cup, and display effect is more preferable, and contrast improves 10% or more；

2) the display plasma-based of the utility model can reduce the thickness of entire electrophoretic display layer, and the response time drops to 80 milliseconds Hereinafter, driving voltage is reduced between positive and negative 1.5-8V, operating temperature range is widened as -30-70 degree, while reducing and being fabricated to This；

3) transparent reflecting layer with groove structure, and groove have also been made on the conductive layer of the utility model transparent electrode Structure can be dome-type groove, hemispherical groove, strip prismatic groove or the tapered trenches of strip, and groove uniform array point Cloth can reflect light by the reflection of transparent reflecting layer, further enhance display brightness, and expand visual angle；

4) support microballoon can also be added in the liner frame of the utility model and display plasma-based, for entire display electricity Slurry mould group plays a supportive role；

5) the viewing area protective layer of the utility model protects the display plasma-based of viewing area, plays shading and insulation Effect；

6) the light shield layer insulating cement water layer of the utility model is for protecting pixel electrode not by optical illumination, isolation display electricity Slurry and pixel electrode prevent display plasma-based damage pixel electrode；

7) the utility model technique can produce the display plasma-based mould group of 100 cun or more large scales.

Detailed description of the invention

Fig. 1 is the side structure schematic view that the utility model has reflection layer structure.

Fig. 2 is the schematic cross-sectional view of part A in Fig. 1.

Fig. 3 is the schematic cross-sectional view of the utility model transparent electrode

Fig. 4 is the structural schematic diagram of transparent reflecting layer in the utility model embodiment 1.

Fig. 5 is the structural schematic diagram of transparent reflecting layer in the utility model embodiment 2.

Fig. 6 is the structural schematic diagram of transparent reflecting layer in the utility model embodiment 3.

Fig. 7 is the structural schematic diagram of transparent reflecting layer in the utility model embodiment 4.

Description of symbols: 1-transparent electrode；2-display plasma-baseds；3-support microballoons；4-shading insulating cement water layers； 5-liner frames；6-pixel electrodes；7-viewing area protective layers；8-blue glue；9-conductive silver pastes；10-IC integrated circuit dies Block；11-flexible circuit boards；12-transparent electrode substrates；13-conductive layers and 14-transparent reflecting layers.

Specific embodiment

Below with reference to specific drawings and examples, the utility model is described in further detail.

The utility model embodiment not limited to the following, each figure of institute's reference is to be able to pair in the following description The content of the utility model is understood and is arranged that is, the utility model is not limited to the electric ink display screen that each figure is illustrated Structure.

As shown in Figure 1 and Figure 2, a kind of display plasma-based mould group with reflection enhancement structure, including pixel electrode 6 and position Transparent electrode 1 above pixel electrode 6 is equipped with display plasma-based 2, the transparent electricity between the pixel electrode 6 and transparent electrode 1 Pole 1 include the conductive layer 13 being covered in the display plasma-based 2, the transparent electrode substrate 12 that is covered on the conductive layer 13 and Conductive layer 13 is set and show between plasma-based 2 for enhancing the transparent reflecting layer 14 of light, if the transparent reflecting layer 14 by Do equally distributed groove composition；

The material of transparent reflecting layer 14 for enhancing light include transparent polymer, transparent inorganic object, transparent metal or Transparent composite；The conductive layer 13 is ITO, silver nanowires, graphene or carbon nanotube, and the transparent electrode substrate 12 is Glass, plastics, the glass with protective layer or the plastics with protective layer, the plastics include PI, PEN, PET.

The pixel electrode 6 is embedded on TFT glass substrate, and is insulated between pixel electrode 6 and display plasma-based 2 by shading Glue layer 4 sticks；The pixel electrode 6 includes segment encode and dot matrix, and the material of the pixel electrode 6 is glass or plastics, institute Stating plastics includes PI, PEN or PET.

2 surrounding of display plasma-based is provided with liner frame 5, between the liner frame 5 and conductive layer 13, the display it is electric It starches and is equipped with viewing area protective layer 7 between 2 edges and conductive layer 13.

Support microballoon 3 can be added in the liner frame 5 and display plasma-based 2, the material of the support microballoon 3 includes resin Microballoon, glass microsphere, and supporting the diameter of microballoon 3 is 2-60 microns.

The electrophoresis particle different comprising at least two photoelectric properties in the display plasma-based 2, the thickness of the display plasma-based 2 Between 2-300 microns, show that the viscosity of electrophoresis liquid in plasma-based 2 is 100-100000 centipoise.

It further include IC integrated circuit modules 10 and flexible circuit board 11, the IC integrated circuit modules 10 and flexible circuit board 11 are located at the side of liner frame 5, and are adhered on pixel electrode 6 by conductive adhesive tape ACF, the IC integrated circuit modules 10, pass through blue 8 sealing of glue on pixel electrode 6 around flexible circuit board 11 and conductive adhesive tape ACF.

For embodiment 1 by taking the sub- electric ink display screen of double grains as an example, double grains is white electrophoretic particles and black electrophore tic Particle, 14 groove of transparent reflecting layer is made of the groove profile channel abreast of several strips in the present embodiment 1, the groove profile groove Notch is contacted with conductive layer 13, and the bottom of groove and side wall are contacted with display plasma-based 2, and the height of groove is 0.5-20 microns Between, width is between 1-20 microns.

For embodiment 2 by taking the sub- electric ink display screen of double grains as an example, double grains is white electrophoretic particles and black electrophore tic Particle, 14 groove of transparent reflecting layer is made of the distribution of several hemispherical groove uniform arrays in the present embodiment 1, the hemispherical The notch of groove is contacted with conductive layer 13, and the bottom of hemispherical groove and side wall are contacted with display plasma-based 2, and hemispherical groove Height be between 0.5-20 micron, width is between 1-20 micron.

For embodiment 3 by taking the sub- electric ink display screen of double grains as an example, double grains is white electrophoretic particles and black electrophore tic Particle, 14 groove of transparent reflecting layer is made of the prismatic channel abreast of several strips in the present embodiment 1, the prismatic of the strip The notch of groove is contacted with conductive layer 13, and the bottom of the prismatic groove of strip and side wall are contacted with display plasma-based 2, and strip The height of prismatic groove is between 0.5-20 microns, and width is between 1-20 microns.

For embodiment 4 by taking the sub- electric ink display screen of double grains as an example, double grains is white electrophoretic particles and black electrophore tic Particle, 14 groove of transparent reflecting layer is made of the distribution of several tapered trenches uniform arrays in the present embodiment 1, the tapered trenches Notch contacted with conductive layer 13, the bottom of tapered trenches and side wall are contacted with display plasma-based 2, and the height of tapered trenches is Between 0.5-20 microns, width is between 1-20 microns.

The manufacturing method of display plasma-based mould group of one of the embodiment as above with reflection enhancement structure, characterized in that Include the following steps:

Pixel electrode 6 is embedded in TFT glass substrate by step 1, and the TFT glass substrate that would be embedded with pixel electrode 6 is put It sets on dispensing platform；

6 surface of pixel electrode can coat shading insulating cement water layer 4 in advance in embodiment, glue include water type, solvent type, Heat molten type, light-cured type etc., preferably water type or light-cured type；

Step 2 puts sealant on pixel electrode 6, forms liner frame 5；

Support microballoon 3 can be added in embodiment in sealant in advance, addition support microballoon 3 can enhance liner frame 5 Support force；

Step 3 silk-screen in the frame that liner frame 5 forms shows that plasma-based 2, the surrounding of the display plasma-based 2 are served as a contrast Frame 5 is padded to surround；

Support microballoon 3 can be added in embodiment in advance in the display plasma-based 2, for dispersing and stablizing display plasma-based 2；

Step 4 is connect in liner 5 internal coat conductive silver paste 9 of frame, the conductive silver paste 9 with pixel electrode 6；

Step 5 forms several equally distributed ditches by way of printing, coating, photoetching, vapor deposition on conductive layer 13 The transparent reflecting layer 14 of slot structure；

The groove of transparent reflecting layer 14 includes the dome-type groove, hemispherical groove, strip prismatic ditch of strip in embodiment The notch of slot or tapered trenches etc., the groove profile groove is contacted with conductive layer 13, the bottom of groove and side wall with display plasma-based 2 Contact, and the height of groove is between 0.5-20 microns, width is between 1-20 microns；

Step 6 is successively by viewing area protective layer 7, coated with conductive layer 13, the transparent electrode substrate of transparent reflecting layer 14 12 are pressed together on entire liner frame 5, in bonding processes, conductive layer 13 be equipped with transparent reflecting layer 14 that is (i.e. transparent down Reflecting layer 14 is contacted with display plasma-based 2), and solidified；The conductive silver paste 9 is connect with the conductive layer 13 of transparent electrode 1；

Step 7 cuts away marginal portion viewing area protective layer 7, conductive layer 13, transparent electrode substrate 12, exposes pixel The predetermined position that IC integrated circuit modules 10 are bound on electrode 6；

IC integrated circuit modules 10 and flexible circuit board 11 are adhered to pixel electrode 6 by conductive adhesive tape by step 8 Edge；

Step 9 will be existed around IC integrated circuit modules 10, flexible circuit board 11 and conductive adhesive tape by blue 8 sealing of glue On pixel electrode 6, the manufacture of electric ink display screen is completed.

Electrophoresis particle comprising at least two different photoelectric properties in the display plasma-based 2 of the utility model, photoelectric properties are not Same electrophoresis particle, the preferred color of electrophoresis particle include white, and black is red, green, blue and yellow etc., for realizing The displays such as black and white, single color, double colored, broken colours and true color, while showing and may include fluorescent material, fluorescence in plasma-based 2 Material includes inorganic fluorescent material and organic fluorescence materials, and inorganic fluorescent material includes rare-earth luminescent material, metal sulfide etc., Organic fluorescence materials include small molecule fluorescent material and high molecular fluorescent material etc..

The display plasma-based mould group of the utility model is not needed using traditional micro-structure such as microcapsules or micro-cup, directly using aobvious Show plasma-based 2, and increase 14 structure of transparent reflecting layer in transparent electrode 1, by by 14 structure setting Cheng Ruo of transparent reflecting layer Equally distributed groove structure is done, this structure can reflect light, further enhance the aobvious of display plasma-based mould group Show brightness, and expand visual angle, is that final display is more clear.

The utility model and embodiments thereof are described above, description is not limiting, shown in the drawings It also is one of the embodiments of the present invention, practical structures are not limited thereto.All in all if this field it is common Technical staff is enlightened by it, without deviating from the purpose of the present invention, is not inventively designed and the skill The similar frame mode of art scheme and embodiment, all should belong to the protection range of the utility model.

Claims (8)

1. a kind of display plasma-based mould group with reflection enhancement structure, including pixel electrode (6) and it is located above pixel electrode (6) Transparent electrode (1), which is characterized in that between the pixel electrode (6) and transparent electrode (1) be equipped with display plasma-based (2), it is described Prescribed electrode (1) include be covered on it is described display plasma-based (2) on conductive layer (13), be covered on it is transparent on the conductive layer (13) The transparent reflecting layer (14) for being used to enhance light of electrode base material (12) and setting between conductive layer (13) and display plasma-based (2), The transparent reflecting layer (14) is made of several equally distributed grooves, and the notch of groove is contacted with conductive layer (13), groove Bottom and side wall with display plasma-based (2) contact.

2. a kind of display plasma-based mould group with reflection enhancement structure according to claim 1, it is characterised in that: for increasing Transparent reflecting layer (14) groove of strong light includes groove profile groove, hemispherical groove, strip prismatic groove or the taper ditch of strip Slot, and the height of groove is between 0.5-20 microns, width is between 1-20 microns.

3. a kind of display plasma-based mould group with reflection enhancement structure according to claim 1, it is characterised in that: for increasing The material of the transparent reflecting layer (14) of strong light includes transparent polymer, transparent inorganic object, transparent metal or transparent composite； The conductive layer (13) is ITO, silver nanowires, graphene or carbon nanotube, and the transparent electrode substrate (12) is glass, modeling Material, the glass with protective layer or the plastics with protective layer, the plastics include PI, PEN, PET.

4. a kind of display plasma-based mould group with reflection enhancement structure according to claim 1, it is characterised in that: the picture Plain electrode (6) is embedded on TFT glass substrate, and passes through shading insulating cement water layer between pixel electrode (6) and display plasma-based (2) (4) stick；The pixel electrode (6) includes segment encode and dot matrix, and the material of the pixel electrode (6) is glass or plastics, institute Stating plastics includes PI, PEN or PET.

5. a kind of display plasma-based mould group with reflection enhancement structure according to claim 1, it is characterised in that: described aobvious Show that plasma-based (2) surrounding is provided with liner frame (5), between the liner frame (5) and conductive layer (13), the display plasma-based (2) Viewing area protective layer (7) are equipped between edge and conductive layer (13).

6. a kind of display plasma-based mould group with reflection enhancement structure according to claim 5, it is characterised in that: the lining Pad frame (5) and display plasma-based (2) in can add support microballoon (3), it is described support microballoon (3) material include resin microsphere, Glass microsphere, and supporting the diameter of microballoon (3) is 2-60 microns.

7. a kind of display plasma-based mould group with reflection enhancement structure according to claim 1, it is characterised in that: described aobvious Show that, comprising the electrophoresis particle that at least two photoelectric properties are different in plasma-based (2), the thickness of display plasma-based (2) is micro- in 2-300 Between rice, the viscosity of electrophoresis liquid is 100-100000 centipoise in display plasma-based (2).

8. a kind of display plasma-based mould group with reflection enhancement structure according to claim 1, it is characterised in that: further include IC integrated circuit modules (10) and flexible circuit board (11), the IC integrated circuit modules (10) and flexible circuit board (11) are located at The side of frame (5) is padded, and is adhered on pixel electrode (6) by conductive adhesive tape ACF, the IC integrated circuit modules (10), pass through blue glue (8) sealing on pixel electrode (6) around flexible circuit board (11) and conductive adhesive tape ACF.