CN201259597Y

CN201259597Y - Flexible display panel

Info

Publication number: CN201259597Y
Application number: CNU200820207312XU
Authority: CN
Inventors: 赖辉龙; 陈圣伟
Original assignee: Chi Hsin Electronics Corp
Current assignee: Chi Hsin Electronics Corp
Priority date: 2008-08-20
Filing date: 2008-08-20
Publication date: 2009-06-17
Anticipated expiration: 2018-08-20

Abstract

Disclosed is a flexural display panel which comprises a flexible display panel and at least a film flip-chip circuit board; the flexible display panel comprises a flexible printed circuit board and an electronic ink thin layer which construct the bottom layer of the display panel; the electronic ink layer comprises a plurality of positive/negative micro particles; the positions of the micro particles are changed due to the external electric field supplied by the film flip-chip circuit board, so as to generate preset display effect; thereby, the display panel is less susceptible to squeezing damage due to the flexibility characteristic, so the flexural display panel is convenient in application.

Description

Flexible type display panel

Technical field

The utility model is relevant with the optical display structure, is meant a kind of flexible type display panel that is applied to e-book in detail.

Background technology

Fig. 1; Fig. 2 shows general common e-book structure; it has a display panel 1 of mutual electric connection; an one membrane of flip chip circuit board 2 and a printed circuit board (PCB) (PCB) 3; the formation of this display panel 1 is included in and disposes an electric ink thin layer 5 and a diaphragm 6 in the substrate (substrate) 4; wherein this substrate 4 is the substrates that are laid with plurality of films transistor 4b on a glass plate 4a; this electric ink thin layer 5 includes the black/white particulate 5a of most just being with/negative electricity; 5b; those particulates 5a; the extra electric field that 5b is subjected to this membrane of flip chip circuit board 2 and provides drives and the change position; produce default display effect according to this, 3 of this PCB circuit boards provide the startup signal to give this membrane of flip chip circuit board 5.

Though above-mentioned e-book structure possesses frivolous characteristic and is easy to carry,, the substrate 4 of its display panel 1 is to be that make on the basis with the hard glass plate 4a that can't be bent arbitrarily, in the use easily because of collision accidentally or push and cause structural failure; Secondly, please consult Fig. 3 again, when making this e-book, for really the pin 2a of membrane of flip chip circuit board 2 being combined with the ITO electrode 4c of substrate 4, and guarantee to have each other good electrical conductivity, can be with aeolotropic conductive (AnisotropicConductive Film, ACF) 7 engage to use, only, use as engaging with this aeolotropic conductive 7 as electrically conducting between two parties, its technology is comparatively loaded down with trivial details, and its price is higher and be difficult to reduce the cost of manufacture of e-book.

The utility model content

The purpose of this utility model is to provide a kind of flexible type display panel, and it possesses softness characteristics and is difficult for because of suffering extrusion damage, and more adds the convenience of use.

For achieving the above object, the flexible type display panel that the utility model provides comprises:

One soft display board comprises:

One flexible printed wiring board constitutes the bottom of this soft display board;

One electric ink thin layer is disposed on this flexible printed wiring board, and this electric ink thin layer comprises the particulate of most just being with/negative electricity, and those particulates are subjected to extra electric field to drive the change position;

At least one membrane of flip chip circuit board electrically connects with this flexible printed wiring board, and this membrane of flip chip circuit board provides this extra electric field to give this display board.

Described flexible type display panel, wherein this soft display board includes one first electrode layer, this first electrode layer has a plurality of electrodes that is provided with along first direction, this flexible printed wiring board has a second electrode lay, this the second electrode lay is made of a plurality of copper conductors along the second direction setting, wherein this first direction is with this second direction and intersects, and this electric ink thin layer is between this first electrode layer and this second electrode lay.

Flexible type display panel of the present utility model, wherein this soft display board comprises a flexible printed wiring board and an electric ink thin layer that constitutes this soft display board bottom, this electric ink thin layer is disposed on this flexible printed wiring board, and the particulate that includes most just being with/negative electricity, those particulates are subjected to the extra electric field that this membrane of flip chip circuit board provides and change the position, produce default display effect according to this, thus, this display panel does not subject to extrusion damage because of possessing softness characteristics, has more convenience on using.

Description of drawings

Fig. 1 is the structural representation of known e-book.

Fig. 2 is the part section enlarged drawing of Fig. 1.

Fig. 3 is the view that the membrane of flip chip circuit board of known e-book combines with substrate.

Fig. 4 is the synoptic diagram of the utility model display panel one preferred embodiment.

Fig. 5 is the vertical view of Fig. 4.

Fig. 6 is the part section enlarged drawing of Fig. 4.

Fig. 7 is another embodiment synoptic diagram of electric ink thin layer of the utility model display panel.

Fig. 8 is first electrode layer and the second electrode lay intersection synoptic diagram of above-mentioned preferred embodiment.

Primary clustering symbol description in the accompanying drawing

100 display panels

10 soft display boards

12 diaphragms

14 first electrode layers

141 electrodes

16 electric ink thin layers

The 16a particulate

The 16b particulate

17 coloured electrophoresis liquid

18 flexible printed wiring boards

181 upper copper leads

182 lower floor's copper conductors

20 membrane of flip chip circuit boards

22 flexible circuit boards

24 drive IC

30 PCB circuit boards

The D1 first direction

The D2 second direction

Embodiment

Fig. 4, Fig. 5 are the flexible type display panel 100 that e-book is used that is applied to of the utility model one preferred embodiment, and this display panel 100 comprises a soft display board 10, plurality of films cover crystal circuit plate 20 and two PCB circuit boards 30, and division is as follows:

Please cooperate shown in Figure 6ly, these soft display board 10 structures are transparent diaphragm 12, one first electrode layer 14, an electric ink thin layer 16 and a flexible printed wiring board 18 from top to bottom in regular turn, wherein:

This diaphragm 12 constitutes the top layer of this soft display board 10, has the effectiveness of protection first electrode layer 14 and electric ink thin layer 16;

This first electrode layer 14 has a plurality of electrodes 141 that is provided with along first direction D1, as shown in Figure 8;

This electric ink thin layer 16 is formed between this first electrode layer 14 and this flexible printed wiring board 18, this electric ink thin layer 16 includes the white particulate 16a and most electronegative black particulate 16b of most positively chargeds, those particulates 16a, 16b are driven by extra electric field and change the position, produce default display effect according to this; In the shown electric ink thin layer of Fig. 6, be the microcapsules electrophoresis (Microcapsules Electrophoretic) that adopts E-link company to produce, certainly, also can use SiPix company as shown in Figure 7 produce Microcup with coloured electrophoresis liquid 17

Structure of arrays;

This flexible printed wiring board 18 constitutes the bottom of soft display board 10, it has along a plurality of upper copper leads 181 and a plurality of lower floor's copper conductors 182 of being provided with the orthogonal thereto second direction D2 of first direction D1, wherein those upper copper leads 181 constitute and first electrode layer, 14 corresponding the second electrode lays jointly, as shown in Figure 8, form an electric capacity (dotted line is represented) between

electrode

141 and 181 intersections of upper copper lead, those lower floor's copper conductors 182 then conduct electrically conduct use.

Those membrane of flip chip circuit boards 20 are the both sides that a component is located at this flexible printed wiring board 18 with two, each membrane of flip chip circuit board 20 comprises that a flexible circuit board 22 and is positioned at the drive IC 24 on the flexible circuit board 22, and these flexible circuit board 22 1 ends are through electrically connecting with scolding tin welding manner and this flexible printed wiring board 18; 30 other ends that are electrically connected at this flexible circuit board 22 of this PCB circuit board, this PCB circuit board 30 provide the startup signal to give this drive IC 24, and then impel this membrane of flip chip circuit board 20 to provide extra electric field to give this soft display board 10.

More than; be the explanation of present embodiment display panel 100 each assembly and relevant position thereof; because of this display panel 100 is to adopt to have the fabric of flexual flexible printed wiring board 18 as soft display board 10; and mating protection film 12 is all a kind of Soft film structure with electric ink thin layer 16; make this display panel 100 possess softness characteristics and be difficult for because of suffering extrusion damage; after using, make to have more convenience in the use as e-book.

Moreover, to each other pin part of the flexible circuit board 22 of this display panel 100 and flexible printed wiring board 18 (be naked copper partly) be with scolding tin by welding manner for engaging and electrically conducting, its technology is compared with aeolotropic conductive work joint more simple and easy, and the cost expenditure reduces.

The above only is a preferable possible embodiments of the present utility model, uses the equivalent structure variation that the utility model instructions and interest field are done such as, ought to be included in the claim scope of the present utility model.

Claims

1. a flexible type display panel is characterized in that, comprises:

One soft display board comprises:

2. flexible type display panel as claimed in claim 1, it is characterized in that, wherein this soft display board includes one first electrode layer, this first electrode layer has a plurality of electrodes that is provided with along first direction, this flexible printed wiring board has a second electrode lay, this the second electrode lay is made of a plurality of copper conductors along the second direction setting, and wherein this first direction is with this second direction and intersects, and this electric ink thin layer is between this first electrode layer and this second electrode lay.