1. Field of the Invention
The present invention relates to the field of liquid crystal panel manufacturing, and in particular to a liquid crystal jar for a one drop filling (ODF) process of liquid crystal.
2. The Related Arts
Liquid crystal displays have a variety of advantages, such as thin device body, low power consumption, and being free of radiation, and are thus of wide applications, such as mobile phone, personal digital assistant (PDA), digital camera, computer monitor, and notebook computer screen.
Most of the liquid crystal displays that are currently available in the market are backlighting liquid crystal displays, which comprise an enclosure, a liquid crystal panel arranged in the enclosure, and a backlight module mounted in the enclosure. The structure of a conventional liquid crystal panel is composed of a color filter (CF) substrate, a thin-film transistor (TFT) array substrate, and a liquid crystal layer arranged between the two substrates and the principle of operation is that a driving voltage is applied to the two glass substrates to control rotation of the liquid crystal molecules of the liquid crystal layer in order to refract out light emitting from the backlight module for generating images. Since the liquid crystal panel itself does not emit light, light must be provided from the backlight module in order to normally display images. Thus, the backlight module is one of the key components of a liquid crystal display. The backlight modules can be classified in two types, namely a side-edge backlight module and a direct backlight module, according to the site where light gets incident. The direct backlight module comprises a light source, such as a cold cathode fluorescent lamp (CCFL) or a light-emitting diode (LED), which is arranged at the backside of the liquid crystal panel to form a planar light source directly supplied to the liquid crystal display panel. The side-edge backlight module comprises an LED light bar, serving as a backlight source, which is arranged at an edge of a backplane to be located rearward of one side of the liquid crystal display panel. The LED light bar emits light that enters a light guide plate (LGP) through a light incident face at one side of the light guide plate and is projected out of a light emergence face of the light guide plate, after being reflected and diffused, to pass through an optic film assembly so as to form a planar light source for the liquid crystal display panel.
Referring to
The conventional process of introducing liquid crystal between the TFT substrate and the CF substrate is generally a process referred to as one drop filling (ODF), which generally comprises processes of coating a resin frame, injecting liquid crystal, vacuum assembling, and high temperature curing, among which the process of injecting liquid crystal is often carried out by a distribution method or a vacuum injection method.
Referring to
To prevent the air bubbles generated by the shaking of the liquid crystal jaw from entering the liquid crystal conduit, a common practice is to stop using the jar once the residue of liquid crystal remaining therein reaches a predetermined amount in order to enable re-mixing and filtering for removing the bubbles. This practice increases the frequency of replacing liquid crystal and thus may affect the difficult of controlling particles existing in the machine and this is generally of no effect in eliminating abnormality of liquid crystal injection caused by air bubbles entering the conduit.
An object of the present invention is to provide a liquid crystal jar for a one drop filling process, which has a simple structure, can raise the utilization efficiency of liquid crystal, and can effectively improve abnormal situations of liquid crystal injection.
To achieve the above object, the present invention provides a liquid crystal jar for an ODF process, which comprises: a jar body, a bladder received in the jar body, and a conduit arranged in the bladder. The bladder comprises an opening and a receiving space communicating with the opening. The conduit has an end located close to a bottom of the receiving space of the bladder that is distant from the opening. The conduit has an opposite end extending out of the opening of the bladder. The bladder is hermetically connected to the conduit at the opening. Liquid crystal is received and contained in the receiving space of the bladder and is guidable out of the bladder via the conduit. The bladder is made of a flexible material that does not react with the liquid crystal. The receiving space of the bladder lessens with reduction of amount of the liquid crystal.
The jar body is made of a transparent material.
The jar body is made of glass.
The jar body is made of a clear plastic material.
The bladder is made of a transparent material.
The bladder is made of a thin sheet of material that has stable chemical properties.
The conduit is a circular tube of transparent plastics.
Further included is a cap. The jar body has a mouth and the cap is mounted to the mouth of the jar body. The opposite end of the conduit penetrates through the cap to project out of the jar body.
The opening of the bladder is located inside the mouth.
The present invention also provides a liquid crystal jar for an ODF process, which comprises: a jar body, a bladder received in the jar body, and a conduit arranged in the bladder, the bladder comprising an opening and a receiving space communicating with the opening, the conduit having an end located close to a bottom of the receiving space of the bladder that is distant from the opening, the conduit having an opposite end extending out of the opening of the bladder, the bladder being hermetically connected to the conduit at the opening, liquid crystal being received and contained in the receiving space of the bladder and being guidable out of the bladder via the conduit, the bladder being made of a flexible material that does not react with the liquid crystal, wherein the receiving space of the bladder lessens with reduction of amount of the liquid crystal;
wherein the jar body is made of a transparent material;
wherein the bladder is made of a transparent material; and
wherein the bladder is made of a thin sheet of material that has stable chemical properties.
The jar body is made of glass.
The jar body is made of a clear plastic material.
The conduit is a circular tube of transparent plastics.
Further included is a cap. The jar body has a mouth and the cap is mounted to the mouth of the jar body. The opposite end of the conduit penetrates through the cap to project out of the jar body.
The opening of the bladder is located inside the mouth.
The efficacy of the present invention is that the present invention provides a liquid crystal jar for an ODF process, which comprises a bladder arranged in a jar body and hermetically connected to a conduit to effectively prevent air from entering liquid crystal, so as to avoid defect drop of liquid crystal due to air existing in the liquid crystal and effectively raise the yield rate and quality of liquid crystal display panels and also to effectively reduce the frequency of replacement of liquid crystal, raise the utilization efficiency of liquid crystal, improve manufacture performance, and lower down manufacture cost.
For better understanding of the features and technical contents of the present invention, reference will be made to the following detailed description of the present invention and the attached drawings. However, the drawings are provided for the purposes of reference and illustration and are not intended to impose limitations to the present invention.
The technical solution, as well as other beneficial advantages, of the present invention will be apparent from the following detailed description of embodiments of the present invention, with reference to the attached drawing. In the drawing:
To further expound the technical solution adopted in the present invention and the advantages thereof, a detailed description is given to a preferred embodiment of the present invention and the attached drawings.
Referring to
The bladder 4 is made of a transparent flexible material that does not react with the liquid crystal 8. Preferably, the bladder 4 is made of a thin sheet of material that has stable chemical properties.
In the instant embodiment, the conduit 6 is a circular tube of transparent plastics, having an end located close to the bottom of the receiving space 42 of the bladder 4 that is distant from the opening 44 and an opposite end extending out of the opening 44 of the bladder 4. It is noted that the liquid crystal jar for an ODF process according to the present invention may further comprise a cap 10. The jar body 2 has a mouth 22 and the cap 10 is mounted on the mouth 22 of the jar body 2. The opposite end of the conduit 6 penetrates through the cap 10 to project out of the jar body 2. The opening 44 of the bladder 4 is located inside the mouth 22.
To use, the liquid crystal 8 is conducted out of the bladder 4 through the conduit 6. At the same time, air enters the jar body 2 through the cap 10. Due to the liquid crystal 8 being conducted out, partial vacuum forms in the bladder 4 and under the action of air pressure, the bladder 4 is shrunk (as shown in
In summary, the present invention provides a liquid crystal jar for an ODF process, which comprises a bladder arranged in a jar body and hermetically connected to a conduit to effectively prevent air from entering liquid crystal, so as to avoid defect drop of liquid crystal due to air existing in the liquid crystal and effectively raise the yield rate and quality of liquid crystal display panels and also to effectively reduce the frequency of replacement of liquid crystal, raise the utilization efficiency of liquid crystal, improve manufacture performance, and lower down manufacture cost.
Based on the description given above, those having ordinary skills of the art may easily contemplate various changes and modifications of the technical solution and technical ideas of the present invention and all these changes and modifications are considered within the protection scope of right for the present invention.
Number | Date | Country | Kind |
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201310419529.2 | Sep 2013 | CN | national |
Filing Document | Filing Date | Country | Kind |
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PCT/CN2013/084661 | 9/30/2013 | WO | 00 |