CN103848575B - Liquid crystal display panel of thin film transistor manufacture method - Google Patents

Abstract

The invention provides a method for manufacturing a thin film transistor liquid crystal display panel. More specifically, it relates to a method of coating synthetic resin on the side of a glass assembly combined with a thin film transistor array glass and a color filter assembly to provide a frameless A method for manufacturing a thin film transistor liquid crystal display panel of a display panel. An object of the present invention is to provide a method for manufacturing a thin film transistor liquid crystal display panel that can effectively cover the periphery of a glass-covered assembly. The manufacturing method of the thin film transistor liquid crystal display panel of the present invention has the effect of providing a method that can effectively coat the periphery of the glass assembly, thereby ensuring the safety of users and increasing the service life of the glass assembly.

Description

Manufacturing method of thin film transistor liquid crystal display panel

technical field

The invention relates to a manufacturing method of a thin film transistor liquid crystal display panel, in particular to a method for coating a synthetic resin on the side of a glass assembly combined with a thin film transistor array glass and a color filter assembly to provide a frame-free (frame) display panel (display panel) thin film transistor liquid crystal display panel manufacturing method.

Background technique

Thin film transistor liquid crystal display panel (thin film transistor liquid crystal display panel, TFT LCD panel) is produced by the following method: the driving circuit (driving circuit) and backlight (back light) are connected to the thin film transistor array glass (TFT array glass) and color filter A glass assembly in which liquid crystal is sealed and joined between color filter glasses.

Conventionally, a glass assembly, a backlight, and the like are provided on a frame or a housing to be used as a display of a TV, a monitor, or the like.

Recently, displays are being made thinner, and displays in which the frame or housing is minimized, or have no frame itself, are also being developed.

As described above, in order to manufacture a frameless thin film transistor liquid crystal display, it is necessary to cover the outer edge of the glass assembly with a structure other than the frame. The periphery of the glass assembly is relatively sharp, which may affect the safety of users. If the frame is not provided on the glass assembly, the periphery will not be protected, and thus the service life will be shortened.

In order to solve the above-mentioned problems, a structure is required that can cover the periphery of the glass assembly with a simple and thin structure.

Contents of the invention

[problem to solve]

The present invention is made based on the above-mentioned need, and an object thereof is to provide a method of manufacturing a thin film transistor liquid crystal display panel capable of effectively covering the periphery of a glass-covered assembly.

[Technical solutions]

The method for manufacturing a thin film transistor liquid crystal display panel of the present invention for achieving the above-mentioned purpose is characterized in that it includes the following steps: (a) a step of horizontally arranging the glass assembly bonded with the thin film transistor array glass and the color filter glass (b) moving a pump (pump) along the side of the glass assembly, and coating (dispensing) a step of coating a photohardenable liquid resin in a direction perpendicular to the side of the glass assembly; and (c ) a step of irradiating light to the liquid resin to harden the liquid resin applied to the side surface of the glass assembly.

[Effect of the invention]

The manufacturing method of the thin film transistor liquid crystal display panel of the present invention has the following effects: providing a method that can effectively coat the periphery of the glass assembly, so as to ensure the safety of users and increase the service life of the glass assembly.

Description of drawings

FIG. 1 is a cross-sectional view of a glass assembly for implementing the method for manufacturing a thin film transistor liquid crystal display panel of the present invention.

FIG. 2 is a perspective view illustrating an example of a method for manufacturing a thin film transistor liquid crystal display panel of the present invention using the glass assembly shown in FIG. 1 .

FIG. 3 is a perspective view for explaining a process of covering the glass assembly shown in FIG. 1 with a liquid resin.

FIG. 4 is a cross-sectional view showing a state of coating with a liquid resin in the method of manufacturing the thin film transistor liquid crystal display panel shown in FIG. 1 .

Explanation of symbols:

10 glass assemblies

11 color filter glass

12 TFT array glass

13, 14 film

20 liquid resin

30 pumps

31 Nozzles

41 vision sensor

42 lights

50 Transfer Department

detailed description

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a cross-sectional view of a glass assembly for implementing the method for manufacturing a thin film transistor liquid crystal display panel of the present invention. FIG. 2 is a perspective view illustrating an example of a method for manufacturing a thin film transistor liquid crystal display panel of the present invention using the glass assembly shown in FIG. 1 .

The present invention is used to coat synthetic resin on the side of the glass assembly (10) as shown in FIG. 1 to manufacture a thin film transistor liquid crystal display panel without a peripheral frame or a shell. The glass assembly (10) of a common thin film transistor liquid crystal display panel has a structure as shown in FIG. 1 . The thin film transistor array glass (12) and the color filter glass (11) are bonded to each other, and liquid crystal is sealed between them. Usually, films (13, 14) as shown in FIG. 1 are attached to the planes exposed to the outside of the thin film transistor array glass (12) and the color filter glass (11).

First, with reference to FIG. 2 , the structure of an apparatus for implementing the method for manufacturing a thin film transistor liquid crystal display panel of this embodiment will be described. Transfer units (50) are arranged horizontally along three of the four sides of the periphery of the glass assembly (10), and pumps (30) are arranged on the respective transfer units (50).

The pump (30) is provided in the transfer unit (50) so as to be able to transfer in the vertical direction, the front-rear direction, and the left-right direction. The pump (30) is configured to receive the supply of the liquid resin (20) to apply the liquid resin (20) horizontally, that is, in a direction perpendicular to the side surface of the glass assembly (10). Therefore, the nozzle (31) of the pump (30) is arranged in the horizontal direction instead of the vertical direction. The liquid resin (20) applied from the pump (30) is photocurable resin. That is, the liquid resin (20) has a property of curing when exposed to light after being applied in a liquid state.

A vision sensor (vision sensor) (41) is installed in each transfer section (50). The vision sensor (41) measures the distance to the side of the glass assembly (10) and the height of the side of the glass assembly (10). Using the distance measured by the visual sensor (41) relative to the side of the glass assembly (10) and the height of the side of the glass assembly (10), the nozzle (31) of the pump (30) is fixedly maintained relative to the glass assembly (10) Side distance and height. The vision sensor (41) can be a laser sensor (laser sensor), and a camera (camera) can also be used.

The above-mentioned visual sensor (41) is arranged in front of the direction of the side transfer pump (30) of the glass assembly (10), first measures the distance and height relative to the side, and communicates the result, so that it can be adjusted and arranged on the side of the glass assembly (10). The distance and height of the rear pump (30) relative to the side of the glass assembly (10).

A lamp (lamp) (42) is also provided in the transfer section (50). The liquid resin (20) coated on the side surface of the glass assembly (10) is irradiated with light from a lamp (42) to harden the liquid resin (20). The lamp (42) is installed behind the pump (30) in the transfer direction, so that the liquid resin (20) can be irradiated immediately after the liquid resin (20) is applied to harden the liquid resin (20).

As the photocurable liquid resin (20), it is preferable to use an ultraviolet curable liquid resin (20). In addition, the lamp (42) is also preferably an ultraviolet lamp (42) that emits ultraviolet rays. Since the ultraviolet curable resin has a fast curing speed, it can be cured immediately after the liquid resin (20) is applied to the glass assembly (10). The shape of the liquid resin (20) covering the side surface of the glass assembly (10) can be fixedly maintained by using an ultraviolet curable resin that hardens at a relatively high speed.

Hereinafter, the process of implementing the thin film transistor liquid crystal display panel manufacturing method of this embodiment by using the above-mentioned apparatus will be described.

The method for manufacturing a thin film transistor liquid crystal display panel of this embodiment starts (step (a)) by first performing the following steps: horizontally disposing the glass assembly ( 10 ) configured as described above. Since the glass assembly (10) has a very thin structure in terms of thickness compared to area, it can be easily bent. It is preferable to arrange the glass assembly (10) horizontally using a jig that allows the glass assembly (10) to be horizontally arranged in a flat form without bending, in consideration of the aforementioned characteristics of the glass assembly (10). Depending on the situation, it is also possible to consider the situation that the glass assembly (10) is bent due to the weight of the glass assembly (10), and the glass assembly (10) is arranged on a jig that has a plane curvature in the direction opposite to the deformation direction, and the glass assembly (10) is formed by This compensation is configured horizontally due to deformation caused by its own weight.

In the above state, the three transfer parts (50) described with reference to Fig. 2 are simultaneously actuated to move the visual sensor (41), the pump (30) and the lamp ( 42).

The side surface of the glass assembly (10) where the transfer unit (50) is not arranged is used to connect the circuit of the thin film transistor array glass (12) to the driving circuit, so it is not covered with the liquid resin (20). As described above, the surface not coated with the liquid resin (20) is placed below and connected to the support base (base) during use.

If the transfer unit (50) is actuated, the following step (step (d)) is performed: while moving along the side of the glass assembly (10), the visual sensor (41) arranged in front of the pump (30) measures The height of the sides of the glass assembly (10). In addition, the following step (step (e)) is also performed simultaneously: while moving along the side of the glass assembly (10), measure the distance between the side of the glass assembly (10) and the nozzle (31) of the pump (30).

The measurement of height and distance as described above may be performed by one vision sensor (41), or may be performed by vision sensors (41) performing separate functions.

The height of the side of the glass assembly (10) measured as described above, and the distance between the side of the glass assembly (10) and the nozzle (31) of the pump (30) are transmitted to the transfer unit (50) in real time, thereby stably Maintain the distance and height between the nozzle (31) of the pump (30) and the side of the glass assembly (10).

In the state as described above, the following steps ((b) step) are carried out: move the pump (30) along the side of the glass assembly (10), and apply It is covered with a photocurable liquid resin (20).

The height of the side surface of the glass assembly (10) where the liquid resin (20) is to be applied by the above-mentioned method, and the distance between the side surface and the nozzle (31) are measured in real time. The liquid resin (20) can be applied while adjusting the height of the nozzle (31) and the distance between the nozzle (31) and the side surface of the glass assembly (10) using the measured values.

The liquid resin ( 20 ) is used a liquid resin ( 20 ) having a viscosity to such an extent that the liquid resin ( 20 ) does not flow and drip downward even if it is applied to the side surface of the glass assembly ( 10 ).

Referring to Fig. 3, the pump (30) preferably uses a so-called jet pump (30) (jet pump) as follows: compared with continuous and uniform flow coating of liquid resin (20), in units of small droplets (droplets) Spray and apply. At this time, the ejected liquid resin (20) may be ejected in units of small droplets every time of pumping and connected to each other on the side surface of the glass assembly (10). Depending on the situation, it can also be applied in such a manner that the small droplets do not break off from each other and the tail of the small droplets does not break off from the nozzle (31) of the pump (30). , the nozzle (31) moves horizontally to eject the next small droplet, so that the liquid resin (20) is ejected in the form of a stream (stream) on the side of the glass assembly (10) to be continuously connected to each other.

The liquid resin (20) coated on the side of the glass assembly (10) as described above is connected with the small droplets of the liquid resin (20) adjacent due to the viscosity and surface tension, and finally as shown in FIG. 4 or in a similar manner. In the form shown in FIG. 4, it is coated on the side surface of the glass assembly (10).

The height of the nozzle (31) of the pump (30) can be maintained at the same height as the side of the glass assembly (10), and it can also be considered when the liquid resin (20) leaves the nozzle (31) and reaches the side of the glass assembly (10). The height of the possible drop is maintained slightly above the sides of the glass assembly (10). In addition, when the surface of the side surface of the glass assembly (10) is uneven, the surface of the side is measured as described above, and the nozzle (31) is moved forward and backward relative to the side surface, and the nozzle (31) and the side surface are fixedly maintained. Therefore, there is an advantage that the shape of the liquid resin (20) coated on the side of the glass assembly (10) can be fixedly maintained.

If the distance and height between the nozzle (31) and the side of the glass assembly (10) cannot be maintained fixedly, the dimensional accuracy of the liquid resin (20) coated on the side of the glass assembly (10) cannot be maintained Therefore, it may not be possible to cover the sharp side of the glass assembly, or the liquid resin (20) may cover the upper surface and the lower surface of the glass assembly (10) in areas that do not need to be covered, resulting in defects.

The thickness of the glass assembly (10) is often as thin as about 1 mm, so even if the glass assembly (10) is placed horizontally on the jig in the step (a) described above, deformation due to its own weight may occur. The glass assembly (10) is bent. In this case, the quality can be improved by maintaining the distance and height between the nozzle ( 31 ) and the side surface of the glass assembly ( 10 ) fixedly as described above.

In the state as described above, the following step ((c) step) is performed: using the lamp (42) arranged behind the pump (30) to irradiate light to the liquid resin (20), so that the coating on the glass assembly (10) The liquid resin (20) on the side is hardened.

The lamp (42) as a light source for irradiating light is combined with the pump (30) as shown in FIG. The applied liquid resin (20) hardens. By the method as described above, the liquid resin (20) can be cured immediately without flowing on the side surface of the glass assembly (10).

On the other hand, as shown in FIG. 2, the pump (30), the lamp (42), and the visual sensor (41) that are separately provided on each side of the glass assembly (10) are used to perform the work, thereby having the following Advantages: the working speed can be increased, and the configuration of the device for implementing the manufacturing method of the thin film transistor liquid crystal display panel of the present invention is relatively simplified.

After the lamp (42) is used to harden the liquid resin (20) as described above, the following curing (curing) step can also be additionally implemented: by reheating or irradiating light, etc., the coating on the glass assembly ( 10) Hardening of the liquid resin (20) on the side.

Coating and hardening the side surface of the glass assembly (10) with the liquid resin (20) as described above has the advantage of ensuring usability without exposing the corners of the sharply formed glass assembly (10) to the outside. or consumer safety. In addition, it has the advantage that the adhesive force between the thin film transistor array glass (12) and the color filter glass (11) of the glass assembly (10) can be supplemented by the adhesive force of the liquid resin (20). In addition, there is an effect that heat generated from the backlight is transmitted to the glass assembly (10) in a structure completed by covering and hardening of the liquid resin (20), thereby preventing deformation of the glass assembly (10).

By coating the liquid resin (20), the shape of the periphery of the glass assembly (10) is visually beautiful, thereby having the following effect: the glass assembly (10) can be made without providing other frames or shells on the glass assembly (10). By becoming a display device itself, a simple, compact, and aesthetically pleasing design can be achieved.

An example of the manufacturing method of the thin film transistor liquid crystal display panel according to the present invention has been described above, but the scope of the present invention is not limited to the previously described and illustrated forms.

For example, the visual sensor may be installed and operated on a transfer unit separately provided on the upper side of the glass assembly instead of being installed in the same transfer unit as the pump as described above.

In addition, in the previous description, the distance and height from the side of the glass assembly were measured by the visual sensor, and the distance and height between the nozzle and the side of the glass assembly were maintained fixedly while the work was performed, but it can also be performed as follows Operation: Measuring only the height without measuring the distance and maintaining the height at a fixed rate.

In addition, the light-generating lamp is similarly moved together with the pump without being installed in the transfer unit, and the liquid resin may be applied and hardened by the pump while irradiating light to the entire working space.

Claims (4)

1. a liquid crystal display panel of thin film transistor manufacture method, it is characterised in that comprise the steps:

A () horizontal arrangement is bonded to the step of thin film transistor (TFT) array glass and the glass assemblies body of color filter glass；

B () one side moves pump along the side of described glass assemblies body, one towards the direction being perpendicular to described glass assemblies body side surface The step of the coating fluid resin with photo-hardening of coating；

Described (b) step is will not be from the state that the nozzle of described pump disconnects by droplet, by described fluid resin with liquid Manifold state is ejected in described glass assemblies body side surface and is continuously connected to one another；

C () irradiates light to described fluid resin, so that be coated in the described fluid resin hardening of described glass assemblies body side surface Step；

D () one side moves along the side of described glass assemblies body, one side measures the step of the height of described glass assemblies body side surface；

Described (b) step is to carry out the real time measure by described (d) step to apply the described glass at the position of described fluid resin The height of assembly side, and regulate the height of the nozzle of described pump, one side coating has the described fluid resin of photo-hardening；

E () one side moves along the side of described glass assemblies body, one side measures the spray of described glass assemblies body side surface and described pump The step of the distance between mouth；And

Described (b) step is to carry out the real time measure by described (e) step to apply the described glass at the position of described fluid resin Distance between the nozzle of assembly side and described pump, and regulate between described nozzle and described glass assemblies body side surface away from From the distance maintained with fixing between described nozzle and described glass assemblies body side surface, one side coating has the institute of photo-hardening State fluid resin.

Liquid crystal display panel of thin film transistor manufacture method the most according to claim 1, it is characterised in that described (c) step Suddenly it is to be incorporated into the light source irradiating described light to perform the described pump of described (b) step and together move with described pump and perform.

Liquid crystal display panel of thin film transistor manufacture method the most according to claim 1, it is characterised in that at described (b) In step, the described fluid resin of coating is ultraviolet hardening resin, and the described light irradiated in described (c) step is ultraviolet.

Liquid crystal display panel of thin film transistor manufacture method the most according to claim 1, it is characterised in that described (b) step Suddenly being to utilize each single pump, each side to described glass assemblies body is coated to described fluid resin respectively.