TWI392915B - Liquid crystal display panel - Google Patents

Description

LCD panel

The present invention relates to a liquid crystal panel, and more particularly to a liquid crystal panel used in the field of flat panel display manufacturing.

In the manufacturing process of flat panel display devices, it is usually necessary to use a laser scribe to cut a larger sized panel.

Referring to FIG. 1, a liquid crystal panel 10 for laser cutting comprises a Thin Film Transistor (TFT) glass plate 11 and a color filter (Color Filter, CF) on the side of the thin film transistor glass plate 11. ) Glass plate 12. The thin film transistor glass plate 11 includes a plurality of rectangular thin film transistor units 110, and the thin film transistor unit 110 includes a central region 1102 and a line region 1104. The plurality of thin film transistor units 110 are arranged in the same direction (in the y direction as shown in FIG. 1), that is, from the perspective of FIG. 1, the line region 1104 of each of the thin film transistor units 110 is located in the thin film transistor. To the right of the central region 1102 of the cell 110, the line region 1104 of each of the thin film transistor units 110 is adjacent to the central region 1102 of the thin film transistor unit 110 adjacent thereto. The central region 1102 of each of the thin film transistor units 110 is bonded to the color filter glass plate 12 by the annular frame glue 13 and the color filter glass plate 12.

The liquid crystal panel 10 is processed by a laser scriber, and is usually pre-cut along the broken line 14 in the x-axis direction, and then pre-cut along the broken line 15 in the y-axis direction. However, in the process of pre-cutting the liquid crystal panel 10 in the x-axis direction, since the adjacent sides of the dicing street in the x-axis direction on the liquid crystal panel 10 have a structural difference, that is, the center of the thin film transistor unit 110 on the side of the dicing street The region 1102 is provided with a sealant 13 adhered to the color filter glass plate 12, and the line region 1104 of the thin film transistor unit 110 on the other side is not provided with a sealant bonded to the color filter glass plate 12 13, the difference in structure causes the stress inside the liquid crystal panel 10 to be different, so that a region 16 between the thin film transistor unit 110 which is cut by the laser along the broken line 14 will have a distinct crack 16, which usually extends to the unset frame. The line region 1104 of the thin film transistor unit 110 of the glue 13 results in a lower yield of the liquid crystal panel laser cutting process.

In view of this, it is necessary to provide a liquid crystal panel suitable for high-rate laser cutting.

A liquid crystal panel suitable for high-rate laser cutting will be described below by way of example.

A liquid crystal panel comprising a thin film transistor glass plate, an annular first frame sealant, and a color filter glass plate on a side of the thin film transistor glass plate. The thin film transistor glass plate includes a plurality of thin film transistor units arranged in an array along a first direction and a second direction different from the first direction; the plurality of thin film transistor units are spaced apart from each other and include one respectively Central area and a line area. The central region includes an upper side, a lower side opposite to the upper side, a left side, and a right side opposite the left side, the line area being located on the left side or the right side. The first direction coincides with the longitudinal direction of the upper side and the lower side, and the second direction coincides with the longitudinal direction of the left side and the right side. In any two adjacent thin film transistor units in the first direction, a line region of one of the thin film transistor units and a line region of another thin film transistor unit Adjacently disposed, or a central region of one of the thin film transistor units is disposed adjacent to a central region of another thin film transistor unit; the boundary of the central region is aligned with the color filter glass plate by the first sealant Bonding.

Compared with the prior art, the central region of the thin film transistor unit of the liquid crystal panel is formed with a ring-shaped sealant adhered to the color filter glass plate, and the line region of the thin film transistor unit is not provided with a sealant. A line region or a central region of two adjacent thin film transistor units in a direction is adjacently disposed, and when the laser is cut between adjacent line regions or central regions, the structure of the liquid crystal panel on both sides of the laser cutting channel is symmetrically distributed. In order to balance the internal stress of the liquid crystal panel during the cutting process, the occurrence of skew cracks can be avoided.

The invention will be further described in detail below with reference to the accompanying drawings.

Referring to FIG. 2, a liquid crystal panel 20 suitable for high-rate laser cutting according to a first embodiment of the present invention includes a thin film transistor glass plate 21, a color filter glass plate 22, and a first sealant 23. The color filter glass plate 22 is located on one side of the thin film transistor glass plate 21. The first sealant 23 is located between the thin film transistor glass plate 21 and the color filter glass plate 22.

The thin film transistor glass plate 21 includes a plurality of thin film transistor units 210 arranged in an array in the x-axis direction and the y-axis direction. The plurality of thin film transistor units 210 are spaced apart from each other, and each of the thin film transistor units 210 includes a central area 2102 and a line area 2104 on the side of the central area 2102, respectively. The center of the central region 2102 is bonded to the color filter glass plate 22 by the first sealant 23. Usually, the first A frame glue 23 is annular. In any two adjacent thin film transistor units 210 in the y-axis direction shown in FIG. 2, one of the line regions 2104 of the thin film transistor unit 210 is disposed adjacent to the line region 2104 of the other thin film transistor unit 210, or one of the films The central area 2102 of the transistor unit 210 is disposed adjacent to the line area 2104 of the other thin film transistor unit 210.

When the laser cuts the area between adjacent line areas 2104 or the area between adjacent central areas 2102 along the x-axis direction, both sides of the scribe line are line areas 2104 or both are central areas 2102. The symmetrical distribution of the structure can balance the internal stress of the liquid crystal panel during the cutting process, thereby avoiding the occurrence of skew cracks, thereby improving the yield of the liquid crystal panel laser cutting process.

Referring to FIG. 3, a second embodiment of the present invention further provides a liquid crystal panel 30 suitable for high-rate laser cutting. The structure of the liquid crystal panel 30 is substantially the same as that of the liquid crystal panel 20, except that the liquid crystal panel 30 is A second sealant 33 is also disposed between the two adjacent line regions 3104. The second sealant 33 may be annular or strip-shaped or the like. In this embodiment, the second sealant 33 is annular, and the second sealant 33 is bonded to the boundary of the spaced region between the line region 3104 and the color filter glass plate 32, respectively. This design further enhances the structural strength of the spaced regions between the line regions 3104 to equalize the internal stress of the liquid crystal panel 30 during the cutting process.

Referring to FIG. 4, a third embodiment of the present invention further provides a liquid crystal panel 40 suitable for high-rate laser cutting. The structure of the liquid crystal panel 40 is substantially the same as that of the liquid crystal panel 20, except that the liquid crystal panel 40 is The boundary region of the thin film transistor glass plate 41 is made of the third sealant 44 and the color The color filter glass plate 42 is bonded. When the laser cuts off the excess boundary portion of the liquid crystal panel 40 along the broken line 45 in the y-axis direction, the first and third sealants 43, 44 on both sides of the scribe line balance the structural strength of the liquid crystal panel 40, which can be avoided. Cracks are generated which are biased toward the edges of the liquid crystal panel 40, thereby ensuring yield. The third sealant 44 may be annular or strip-shaped or the like. In this embodiment, the third sealant 44 is annular.

Of course, the features of the second and third embodiments of the present invention can also be applied to the first embodiment at the same time. Since a plurality of liquid crystal panels are provided with a seal, the structural strength of the plurality of structures is strengthened to avoid along the directions ( In the x and y-axis directions, a skew crack occurs when laser cutting is performed.

In addition, the two directions of the x and y axes provided in this embodiment may be perpendicular to each other, and of course, an angle of not 90 degrees may be formed between the x and y axes.

In summary, the present invention has indeed met the requirements of the invention patent, and has filed a patent application according to law. However, the above description is only a preferred embodiment of the present invention, and it is not possible to limit the scope of the patent application of the present invention. Equivalent modifications or variations made by persons skilled in the art in light of the spirit of the invention are intended to be included within the scope of the following claims.

10, 20, 30, 40‧‧‧ LCD panel

11, 21, 41‧‧‧ Film Optic Glass Plate

12, 22, 32, 42‧‧‧ color filter glass plates

110, 210‧‧‧film transistor unit

1102, 2102‧‧‧ central area

1104, 2104, 3104‧‧‧ line area

13‧‧‧Box glue

14, 15, 45‧‧ ‧ dotted line

16‧‧‧ crack

23, 43‧‧‧ first frame glue

33‧‧‧Second frame glue

44‧‧‧ Third frame glue

1 is a schematic structural view of a prior art liquid crystal panel.

2 is a schematic structural view of a liquid crystal panel according to a first embodiment of the present invention.

3 is a schematic structural view of a liquid crystal panel according to a second embodiment of the present invention.

4 is a schematic structural view of a liquid crystal panel according to a third embodiment of the present invention; .

20‧‧‧LCD panel

21‧‧‧Thin film glass plate

22‧‧‧Color filter glass plate

210‧‧‧Thin-film transistor unit

2102‧‧‧Central area

2104‧‧‧Line area

23‧‧‧ first frame glue

Claims (6)

A liquid crystal panel comprising a thin film transistor glass plate, an annular first frame sealant, and a color filter glass plate on a side of the thin film transistor glass plate, the thin film transistor glass plate comprising a plurality of thin film transistor units, and The plurality of thin film transistor units each include a central region and a line region, and the boundary of the central region is adhered to the color filter glass plate by the first sealant, and the central region includes an upper side, a lower side, a left side, and a right side opposite to the upper side, the line area is located on the left side or the right side, and the improvement is that the plurality of thin film transistors are spaced apart from each other and respectively Arranging in an array along a first direction and a second direction different from the first direction, the first direction is consistent with a length direction of the upper side and the lower side, the second direction and the left side And the length direction of the right side is the same; in any two adjacent thin film transistor units in the first direction, the line region of one of the thin film transistor units and the line of the other thin film transistor unit Region disposed adjacent to, or in which the centers of a thin film transistor cell region to another region of the thin film transistor is disposed adjacent cell. The liquid crystal panel of claim 1, wherein the liquid crystal panel further comprises a second sealant, wherein the boundary between the two adjacent line regions in the first direction is separated by the second sealant The color filter glass plate is bonded. The liquid crystal panel of claim 2, wherein the second sealant is annular or elongated. The liquid crystal panel of claim 1, wherein the liquid crystal panel further comprises a third sealant, the thin film transistor glass plate and the color filter glass The third frame seal is bonded at the boundary of the glass plate. The liquid crystal panel of claim 4, wherein the third sealant is annular or elongated. The liquid crystal panel of claim 1, wherein the first direction is perpendicular to the second direction.