KR20100007227A - Liquid crystal display device - Google Patents

Abstract

PURPOSE: An LCD(Liquid Crystal Display) device is provided to form the package of a plurality of pixels on a first substrate, thereby preventing the creation of a fault on a screen. CONSTITUTION: A display area(AA) and a non-display area(NA) are defined in a first substrate and a second substrate(102). A part of the display area has the shape of a curve. A plurality of RGB(Red, Green, Blue) filters(107) is formed in the display area of the second substrate. A plurality of RGB filters is corresponded to each pixel of the first substrate. Partial pixels corresponding to the area of the curve type of the display area are formed in one unit. The one unit comprises pixels corresponding to the red color filter, pixels corresponding to the green color filter, and pixels corresponding to the blue color filter.

Description

Liquid crystal display {LIQUID CRYSTAL DISPLAY DEVICE}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid crystal display device. In particular, in a circle type liquid crystal display device in which a portion of an edge of a screen has a curved shape, a liquid crystal display device capable of improving screen display quality of a curved area of a screen may be improved. It is about.

BACKGROUND ART In general, liquid crystal display devices have tended to be gradually widened due to their light weight, thinness, and low power consumption. Accordingly, the liquid crystal display device is widely used as a means for displaying a screen in portable computers, mobile phones, office automation equipment and the like.

In general, a liquid crystal display device displays a desired image on a screen by adjusting the amount of light transmitted according to image signals applied to a plurality of control switching elements arranged in a matrix.

The liquid crystal display device includes a liquid crystal panel in which a color filter substrate as an upper substrate and a thin film transistor array substrate as a lower substrate are opposed to each other, and a liquid crystal layer is filled between the two substrates, and a scan signal and image information are supplied to the liquid crystal panel to provide a liquid crystal. It comprises a drive unit for operating the panel.

In the liquid crystal display having the above configuration, the user's demand for a model having a screen having various functions and various shapes is increasing.

Accordingly, researches on liquid crystal displays having screens of various shapes including semicircles, circles, etc., which are not universal rectangles, have been actively conducted.

A conventional liquid crystal display having a screen having various shapes as described above will be described with reference to FIGS. 1 and 2.

As shown in FIG. 1, a conventional liquid crystal display device includes a first substrate 1, which is a thin film transistor array substrate, and a second substrate (not shown), which is a color filter substrate, and includes the first substrate 1. A liquid crystal layer (not shown) is formed in the region between the second substrates.

On the first substrate 1, a display area AA in which a portion of the edge is curved is defined, and a non-display area NA, which is an area excluding the display area AA, is defined. A plurality of pixels are defined in the AA line by the gate lines GL1 to GLm and the data lines DL1 to DLn formed to cross each other longitudinally and horizontally.

The plurality of pixels define a plurality of horizontal pixel columns in a horizontal direction, and among the plurality of horizontal pixel columns, pixels constituting some horizontal pixel columns corresponding to the curved area of the display area AA may include other horizontal pixel columns. It has a small number compared with the pixel which comprises.

Although not shown in detail in the drawings, a display area and a non-display area corresponding to the display area AA and the non-display area NA on the first substrate 1 are also defined on the second substrate (not shown). In the display area on the second substrate, a color filter layer including a plurality of red, green, and blue color filters (not shown) corresponding to each pixel of the first substrate 1 is provided. In the non-display area, a black matrix (not shown) is provided. C) is formed.

Accordingly, each pixel defined on the first substrate 1 is formed so as to correspond to one of the red, green, and blue color filters on the second substrate so that three pixels displaying red, green, and blue form a package. By mixing red, green, and blue light, a desired color is displayed and a screen is realized.

However, among the plurality of pixels defined in the display area AA on the first substrate 1, a pixel corresponding to the curved area of the display area AA is not considered to be mixed with red, green, and blue light as described above. Since the pixels are formed in accordance with the shape of the display area AA, three pixels displaying red, green, and blue do not form a package, and one or two form a package. One color of red, green, and blue is observed in the curved area of the screen, or a color in which two of red, green, and blue are mixed is observed in the curved area of the screen, thereby degrading screen display quality.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to provide a screen display quality of a curved area of a screen in a circle type liquid crystal display device in which a portion of an edge of a screen has a curved shape. An improved liquid crystal display device is provided.

According to a preferred embodiment of the present invention, a liquid crystal display device includes: a display area and a non-display area, wherein a part of the display area has a curved shape; A gate line and a data line formed to vertically cross each other in the display area on the first substrate to define a plurality of pixels; A plurality of red, green, and blue color filters formed in the display area on the second substrate and corresponding to each pixel of the first substrate; Some pixels corresponding to curved areas of the display area among the plurality of pixels include pixels corresponding to red color filters, pixels corresponding to green color filters, and three pixels corresponding to blue color filters. It is formed as a unit.

In the liquid crystal display device according to the preferred embodiment of the present invention having the above configuration, a plurality of pixels on the first substrate correspond to each of the color filters of red, green, and blue in all areas including the curved area of the display area. Since three pixels are formed to form a package, some pixels corresponding to the curved area of the display area do not form a package together with other pixels, and thus, there is an advantage of not causing a problem on the screen. .

Accordingly, the screen display quality of the liquid crystal display device is improved.

Hereinafter, a liquid crystal display according to an exemplary embodiment of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 3 is a plan view illustrating a liquid crystal display according to an exemplary embodiment of the present invention. For convenience of description, only the first substrate, which is a thin film transistor substrate, is illustrated. In FIG. 4, a part of the curved region of the display area of FIG. 3 is enlarged. 5 is an enlarged view of a portion of the second substrate corresponding to the portion of the first substrate illustrated in FIG. 4.

3 to 5, in the liquid crystal display according to the exemplary embodiment of the present invention, a display area AA and a non-display area NA are defined, and part of the display area AA is curved. A first substrate 101 and a second substrate 102 having a shape; Gate lines GL1 to Glm and data lines DL1 to DLn formed in the display area AA on the first substrate 101 so as to cross each other vertically and horizontally to define a plurality of pixels; A plurality of red, green, and blue color filters 107 formed in the display area AA on the second substrate 102 and corresponding to each pixel of the first substrate 101; It is configured to include. Some pixels corresponding to curved areas of the display area AA among the plurality of pixels include pixels corresponding to the red color filter 107, pixels corresponding to the green color filter 107, and blue color filters ( Three pixels corresponding to 107 are formed as one unit.

Each component of the liquid crystal display according to the preferred embodiment of the present invention having such a configuration will be described in detail as follows.

A liquid crystal display according to an exemplary embodiment of the present invention includes a liquid crystal panel including a first substrate 101 which is a thin film transistor array substrate and a second substrate 102 which is a color filter substrate, and the first substrate 101 and the first substrate 101. A liquid crystal layer (not shown) is formed in the region between the second substrates 102.

The first substrate 101 and the second substrate 102 are defined as a display area AA in which a screen is displayed, and a non-display area NA which is an area excluding the display area AA. AA) some areas have a curved shape.

Although FIG. 3 illustrates that both end regions of the upper portion of the display area AA have a curved shape, the present invention is not limited thereto, and the display area AA is the gist of the present invention. Various shapes such as a semi-circle or a circle may be provided within a range not to deviate.

Referring to FIG. 3, a plurality of pixels are defined in the display area AA on the first substrate 101 such that the gate lines GL1 to GLm and the data lines DL1 to DLn cross each other vertically and horizontally. The plurality of pixels form a plurality of horizontal pixel columns and a plurality of vertical pixel columns.

Among the plurality of horizontal pixel columns defined on the first substrate 101, the horizontal pixel columns corresponding to the areas having a curved shape of the display area AA include different numbers of pixels, and the plurality of vertical pixel columns The vertical pixel columns corresponding to the areas having the curved shape of the display area AA also include different numbers of pixels.

The thin film transistor 105 is formed in an area where the gate lines GL1 to GLm and the data lines DL1 to DLn of each pixel cross each other to form the gate lines GL1 to GLm and the data lines DL1 to DLn. Each pixel is connected to a drain electrode of the thin film transistor 105 in the pixel to supply a pixel electrode 106 to the pixel signal.

The non-display area NA on the first substrate 101 includes a gate driver 103 for driving the gate lines GL1 to GLm and a data driver 104 for driving the data lines DL1 to DLn.

In the above description and FIG. 3, the gate driver 103 and the data driver 104 are directly mounted on the first substrate 101, but the present invention is not limited thereto. The gate driver 103 and The data driver 104 is formed on a printed drive circuit (PCB) and connected to the first substrate 101 through a tape carrier package without departing from the gist of the present invention. Various examples are possible.

FIG. 5 illustrates a region of the second substrate 102 corresponding to a portion of the first substrate 101 of FIG. 4. Referring to FIG. 5, a display area on the second substrate 102 is illustrated. A color filter layer including a plurality of color filters 107 corresponding to each pixel on the first substrate 101 is formed in AA, and a pixel electrode on the first substrate 101 is formed on the color filter layer. A common electrode (not shown) for forming a vertical electric field together with the 106 to drive the liquid crystal layer is formed.

The plurality of color filters 107 formed on the second substrate 102 include one unit of three red, green, and blue color filters 107 in all areas including the curved area of the display area AA. It is formed to form a package.

Therefore, among the plurality of color filters 107 formed on the second substrate 102, the color filter 102 positioned at the leftmost portion of the plurality of color filters 107 is formed to be unified in any one of red, green, and blue colors. Among the plurality of color filters 107 formed on the second substrate 102, the color filter 107 positioned at the rightmost end of the plurality of color filters 107 is also formed to be unified in any one of red, green, and blue colors. . At this time, the color of the color filter 107 located in the leftmost part and the color of the color filter 107 located in the rightmost part are different from each other. This is because three green and blue color filters 107 are formed in one unit.

In FIG. 5, a plurality of color filters 107 on the second substrate 102 are arranged in a color order of red, green, and blue with respect to the right side, so that the leftmost part is blue and the rightmost part ( Iii) The red part is an example, but the present invention is not limited thereto. The order in which the plurality of color filters 107 are arranged is a package of three color filters 107 of red, green, and blue as one unit. Various examples may be made without departing from the gist of the present invention.

In addition, in the above description, a common electrode (not shown) is formed on the second substrate 102 to form a vertical electric field together with the pixel electrode 106 on the first substrate 101 to form a liquid crystal layer (not shown). Although driving is an example, the present invention is not limited thereto, and the common electrode is formed on the first substrate 101 to form a horizontal electric field together with the pixel electrode 106 to drive the liquid crystal layer. Various examples are possible without departing from the spirit of the invention.

Referring to FIG. 5, a black matrix 108 is formed on at least the entire non-display area NA and a part of the display area AA on the second substrate 102, and the black matrix 108 is at least a first one. The region corresponding to the pixel electrode 106 on the substrate 101 is opened.

Although FIG. 5 illustrates that the black matrix 108 is formed in the entire region other than the plurality of pixels of the display area AA and the entire non-display area NA, the present invention is not limited thereto. The gate line GL1 to GLm, the data lines DL1 to DLn, and the thin film on the first substrate 101, including the entirety of the non-display area NA and the entire non-display area NA of the display area AA, may be formed. If the region corresponding to the pixel electrode 106 on the first substrate 101 is formed so as to be formed in the region corresponding to the transistor 105, various examples are possible within the scope of the present invention.

In the liquid crystal display according to the preferred embodiment of the present invention having the above-described configuration, a plurality of pixels corresponding to the red, green, and blue color filters 107 may be formed including the curved area of the display area AA. In the region, three pixels corresponding to each of the red, green, and blue color filters 107 are formed to form a package as a unit, so that some pixels corresponding to the curved region of the display area AA are the other pixels. In addition, it is impossible to form a package and a problem that causes a defect on the screen does not occur, and thus a screen having high display quality can be expected.

1 is a plan view showing a conventional general liquid crystal display device.

FIG. 2 is an enlarged plan view of a curved area of the display area of FIG. 1; FIG.

3 is a plan view showing a liquid crystal display device according to a preferred embodiment of the present invention, showing only a first substrate which is a thin film transistor substrate.

4 is an enlarged plan view of a portion of a curved area of the display area of FIG. 3; FIG.

5 is an enlarged plan view illustrating a partial region of a second substrate corresponding to a partial region of the first substrate illustrated in FIG. 4.

** Description of the symbols for the main parts of the drawings **

101: first substrate 102: second substrate

GL1 to GLm: Gate line DL1 to DLn: Data line

103: gate driver 104: data driver

105: thin film transistor 106: pixel electrode

107: color filter 108: black matrix

Claims (4)

A display area and a non-display area, wherein a part of the display area includes a first substrate and a second substrate having a curved shape; A gate line and a data line formed to vertically cross each other in the display area on the first substrate to define a plurality of pixels; A plurality of red, green, and blue color filters formed in the display area on the second substrate and corresponding to each pixel of the first substrate; It is configured to include, Some pixels of the plurality of pixels corresponding to curved areas of the display area may be formed by using one pixel corresponding to a red color filter, one pixel corresponding to a green color filter, and three pixels corresponding to a blue color filter. A liquid crystal display device. The display device of claim 1, wherein the plurality of pixels of the display area on the first substrate are divided into a plurality of horizontal pixel columns. And a horizontal pixel column corresponding to an area having a curved shape of the display area in each of the horizontal pixel columns includes a different number of pixels. The display device of claim 1, wherein a pixel electrode connected to a data line is formed in each pixel on the first substrate, and a black matrix is formed on the entire non-display area and a part of the display area of the second substrate. And the black matrix is formed such that at least a region corresponding to the pixel electrode of the display region is opened. The color filter of claim 1, wherein the color filter positioned at the leftmost part of the plurality of color filters formed on the second substrate is integrated into any one of red, green, and blue, Among the plurality of color filters formed on the second substrate, the color filter positioned at the rightmost part of the right side is unified with any one of red, green, and blue, The color of the color filter located at the leftmost end of the second substrate and the color of the color filter located at the rightmost end of the second substrate are different.

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