FLAT PANEL DISPLAY PACKAGE METHOD
The present invention discloses a flat panel display package method. Firstly, a flat panel display and an electronic baseplate are prepared; the electronic baseplate is assembled to the flat panel display to provide a driving signal for the flat panel display and form a display module, and the display module defines a module package plane. Next, a first package film and a second package film are respectively provided for the flat panel display and electronic baseplate; the first package film and the second package film both outside the module package plane are respectively defined to be a first join region and a second join region. Next, a hot-pressing machine is used to apply a hot-pressing temperature and a hot-pressing pressure to the first and second join regions and seal them airtightly. Thereby, the present invention can prevent external humidity entering and damaging the flat panel display and the electronic baseplate.
The present invention relates to a flat panel display, particularly to a flat panel display package method.
BACKGROUND OF THE INVENTIONCompared with the traditional CRT (Cathode Ray Tube), FPD (Flat Panel Display), such as LCD (Liquid Crystal Display) and OLED (Organic Light Emitting Diode) displays, has the advantages of lightweight and high brightness and has been widely accepted by users. Among them, EPD (ElectroPhoretic Display) is an outstanding one and features flexibility, bistability, self-luminescence and power efficiency. At present, EPD has been applied to electronic tags, electronic signboards, smart cards, e-books, and time display devices. However, EPD is very sensitive to humidity. Once humidity permeates EPD, the electrodes cannot normally drive the ink particles thereinside, which will decrease the mobility and degrade the picture quality. In such a case, the stability and lifetime of EPD is unlikely to satisfy the requirements of the market, and the popularization of EPD should be handicapped. The traditional solution to the humidity damage on EPD is applying a water-proof film onto the surface of EPD. However, humidity permeation is omnidirectional. Thus, humidity can still permeate EPD from the lateral and back sides. Therefore, the traditional solution cannot effectively protect EPD from humidity damage.
SUMMARY OF THE INVENTIONThe primary objective of the present invention is to completely prevent external humidity from permeating a flat panel display. To achieve the abovementioned objective, the present invention proposes a flat panel display package method comprising steps:
- (a) preparing a display module: fabricating a flat panel display and an electronic baseplate, wherein the electronic baseplate is assembled to the flat panel display and provides a driving signal for the flat panel display, and wherein the combination of the flat panel display and the electronic baseplate forms a display module and defines a module package plane;
- (b) covering the display module: respectively providing a first package film and a second package film for the flat panel display and the electronic baseplate, wherein the first package film outside the module package plane and the second package film outside the module package plane are respectively defined to be a first join region and a second join region; and
- (c) hot pressing and packaging: a hot-pressing machine applying a hot-pressing temperature and a hot-pressing pressure to bond the first and second join regions to prevent from external humidity.
The flat panel display may be an EPD (ElectroPhoretic Display). The first package film covering the flat panel display needs a light transmittance of over 70% to present the pictures of the flat panel display. Each of the first and second package films is a multi-layer film containing a metal layer. The metal layer of the second package film contains aluminum or copper, or the metal layer of the second package film is a stainless-steel layer. A first joiner adhesive is disposed between the first package film and the flat panel display, and a second joiner adhesive is disposed between the second package film and the electronic baseplate, whereby the first package film and the second package film are respectively firmly stuck onto the flat panel display and the electronic baseplate.
In step (b), the first and second join regions have a width of at least 1 mm to attain a better bonding. In step (c), the hot-pressing temperature is between 75 and 95° C., and the hot-pressing pressure is between 0.8 and 1.2 kg/cm2, and the time for hot-pressing is between 7 and 13 seconds. The hot-pressing machine can be a roller-type or bar-type hot-pressing machine.
Via the flat panel display package method of the present invention, the first and second package films are airtightly sealed by hot pressing the first and second join regions. Thus, external humidity is impossible to enter the space formed by the first and second package films. Thereby, the flat panel display and the electronic baseplate are protected.
Below are described in detailed the technical contents of the preset invention in cooperation with the drawings.
Refer to
- (a) preparing a display module (S1): fabricating a flat panel display and an electronic baseplate, wherein the electronic baseplate is assembled to the flat panel display and provides a driving signal for the flat panel display, and wherein the combination of the flat panel display and the electronic baseplate forms a display module and defines a module package plane;
- (b) covering the display module (S2): respectively providing a first package film and a second package film for the flat panel display and the electronic baseplate, wherein the first package film and the second package film outside the module package plane are respectively defined to be a first join region and a second join region; and
- (c) hot pressing and packaging (S3): a hot-pressing machine applying a hot-pressing temperature and a hot-pressing pressure to bond the first and second join regions to prevent from external humidity.
The flat panel display may be an EPD (ElectroPhoretic display). The first package film covering the flat panel display needs a light transmittance of over 70% to present the pictures of the flat panel display. A first joiner adhesive is disposed between the first package film and the flat panel display, and a second joiner adhesive is disposed between the second package film and the electronic baseplate, whereby the first package film and the second package film are respectively firmly stuck onto the flat panel display and the electronic baseplate.
In this preferred embodiment, each of the first and second package films is a multi-layer film containing a soft plastic layer, a metal layer, etc. The soft plastic layer is made of PE (polyethylene), PA (polyamide), PET (polyethylene terephthalate), PU (polyurethane), PVA (polyvinyl alcohol), or polyester. The metal layer contains aluminum or copper, or the metal layer is a stainless-steel layer.
Refer to
As shown in
In conclusion, the first package film and the second package film respectively cover the flat panel display and the electronic baseplate, whereby external humidity cannot enter the display module from the front side and back side of the display module. Further, the first and second join regions along the circumference of the display module are sealed airtightly with a hot-pressing method, whereby external humidity cannot enter the display module from the lateral sides. Thus, the flat panel display and electronic baseplate packaged inside the first and second package films are fully protected from the damage of external humidity.
From the abovementioned description, it is known that the present invention indeed possesses novelty and non-obviousness and meets the conditions for a patent. Thus, the Inventor files the application for a patent. It will be appreciated if the patent is approved fast.
The embodiments described above are only to exemplify the present invention but not to limit the scope of the present invention. Therefore, any equivalent modification or variation according to the spirit of the present invention is to be also included within the scope of the present invention.
Claims
1. A flat panel display package method comprising steps:
- preparing a display module: fabricating a flat panel display and an electronic baseplate, wherein said electronic baseplate is assembled to said flat panel display and provides a driving signal for said flat panel display, and wherein the combination of said flat panel display and said electronic baseplate forms the display module and defines a module package plane;
- covering said display module: respectively providing a first package film and a second package film for said flat panel display and said electronic baseplate, wherein said first package film outside said module package plane and said second package film outside said module package plane are respectively defined to be a first join region and a second join region; and
- hot-pressing and packaging: using a hot-pressing machine to apply a hot-pressing temperature and a hot-pressing pressure to bond said first join region and said second join region to prevent from external humidity.
2. The flat panel display package method according to claim 1, wherein said flat panel display is an electrophoretic display.
3. The flat panel display package method according to claim 1, wherein said first package film has a metal layer.
4. The flat panel display package method according to claim 3, wherein said metal layer of said first package film contains aluminum.
5. The flat panel display package method according to claim 1, wherein said first package film has a light transmittance of over 70%.
6. The flat panel display package method according to claim 1, wherein said second package film has a metal layer.
7. The flat panel display package method according to claim 6, wherein said metal layer of said second package film contains aluminum.
8. The flat panel display package method according to claim 6, wherein said metal layer of said second package film contains copper.
9. The flat panel display package method according to claim 6, wherein said metal layer of said second package film is a stainless-steel layer.
10. The flat panel display package method according to claim 1, wherein a first joiner adhesive is disposed between said first package film and said flat panel display.
11. The flat panel display package method according to claim 1, wherein a second joiner adhesive is disposed between said second package film and said electronic baseplate.
12. The flat panel display package method according to claim 1, wherein each of said first join region and said second join region has a width of at least 1 mm.
13. The flat panel display package method according to claim 1, wherein said hot-pressing temperature is between 75 and 95° C.
14. The flat panel display package method according to claim 1, wherein said hot-pressing pressure is between 0.8 and 1.2 kg/cm2.
15. The flat panel display package method according to claim 1, wherein time for said hot-pressing is between 7 and 13 seconds.
16. The flat panel display package method according to claim 1, wherein said hot-pressing machine is a roller-type hot-pressing machine.
17. The flat panel display package method according to claim 1, wherein said hot-pressing machine is a bar-type hot-pressing machine.
Type: Application
Filed: Aug 12, 2008
Publication Date: Feb 18, 2010
Inventors: Ming-Chih Chien (Taoyuan County), Jung-Hsiu Chen (Taoyuan County)
Application Number: 12/189,880
International Classification: B65B 51/10 (20060101);