TWI843306B - Display panel - Google Patents

Abstract

A display panel includes a panel body. The panel body has two first sides opposite to each other and two second sides which is opposite to each other and connected between the two first sides. The length of each of the two first sides is greater than the length of each of the two second sides. The panel body includes a first central area, a second central area, two first peripheral areas symmetrically extending from the first central area to the two second sides respectively, and two second peripheral areas symmetrically extending from the second central area to the two first sides respectively. Each of the two first sides has a first cross-section. The curvature radius of the first central area in the first cross-section is different from the curvature radius of the two first peripheral areas in the first cross-section. Each of the two second sides has a second cross-section. The curvature radius of the second central area in the second cross-section is different from the curvature radius of the two second peripheral areas in the second cross-section.

Description

Display Panel

The present invention relates to a panel, and in particular to a display panel.

With the development of display technology, curved display panels are increasingly being used. Specifically, compared to flat display panels, curved display panels have advantages that include consistent positions from the user's eyes to each point on the curved display panel, eliminating distortion, providing a wider field of view, and reducing user eye fatigue.

However, in the existing curved display panels, due to the problem of dark state light leakage, the currently available curved display panels are often not ideal perfect circular curves, but have tangents on both sides of the curved display panel and the central area of the curved display panel is formed by the outline of the curve, and the areas where the tangents on both sides are located are often greater than 15% of the total length of the curved display panel, thereby failing to achieve the advantages of the curved display panel compared to the flat display panel. Therefore, a method that can solve the above problems is urgently needed.

The present invention provides a display panel, the panel body of which can maximize the curve ratio and effectively suppress dark state light leakage.

The display panel of the present invention includes a panel body. The panel body has two opposite first sides and two opposite second sides. The two second sides are connected between the two first sides. The length of each first side is greater than the length of each second side. The panel body includes a first central area, a second central area, two first peripheral areas and two second peripheral areas. The two first peripheral areas extend symmetrically from the first central area to the two second sides. Each first side has a first section. The radius of curvature of the first central area in the first section is different from the radius of curvature of the two first peripheral areas in the first section. The two second peripheral areas extend symmetrically from the second central area to the two first sides. Each second side has a second section. The radius of curvature of the second central area in the second section is different from the radius of curvature of the two second peripheral areas in the second section.

In one embodiment of the present invention, the second central area partially overlaps with the first central area, and the two second peripheral areas partially overlap with the two first peripheral areas.

In one embodiment of the present invention, the panel body has a plurality of corners, and the overlapping parts of the two second peripheral areas and the two first peripheral areas are located at these corners.

In an embodiment of the present invention, the radius of curvature of the first central region in the first cross section is smaller than the radius of curvature of the second central region in the second cross section.

In one embodiment of the present invention, each of the first peripheral regions has a first end and a second end opposite to each other in the first cross section. The first end is connected to the first central region. The second end is located at the corresponding second side. The horizontal distance between the first end and the second end is greater than 0 times the length of the first side. The horizontal distance between the first end and the second end is less than or equal to 0.05 times the length of the first side.

In one embodiment of the present invention, each of the first sections of the first peripheral area has a first end and a second end opposite to each other. The first end is connected to the first central area, and the second end is located at the corresponding second side. The first central area has a virtual curve in the first section. The virtual curve extends to a virtual end corresponding to the second side. The vertical distance between the virtual end and the second end is greater than 0 cm, and the vertical distance between the virtual end and the second end is less than or equal to 0.5 cm.

In one embodiment of the present invention, each of the second peripheral regions has a third end and a fourth end opposite to each other in the second cross section. The third end is connected to the second central region, and the fourth end is located at the corresponding first side. The horizontal distance between the third end and the fourth end is between 6 cm and 9 cm.

In one embodiment of the present invention, the second central area has a center of curvature in the second cross section. Each second peripheral area has a third end connected to the second central area in the second cross section. The vertical distance between the third end and the center of curvature is greater than 0 cm, and the vertical distance between the third end and the center of curvature is less than or equal to 0.4 cm.

In one embodiment of the present invention, the second central area has a center of curvature in the second section. Each second peripheral area has a fourth end located at the corresponding first side in the second section. The vertical distance between the fourth end and the center of curvature is greater than 0 cm, and the vertical distance between the fourth end and the center of curvature is less than or equal to 0.5 cm.

In one embodiment of the present invention, each of the second peripheral regions has a third end and a fourth end opposite to each other in the second cross section. The third end is connected to the second central region. The fourth end is located at the corresponding first side. The second central region has a center of curvature in the second cross section. The vertical distance between the third end and the center of curvature is different from the vertical distance between the fourth end and the center of curvature.

Based on the above, in the display panel of the present invention, the panel body is designed with a curved profile in both the first central area and the second central area, so that the dark state light leakage of the panel body is concentrated at the overlap of the two first peripheral areas and the two second peripheral areas, and the first central area is extended to the two first peripheral areas and the second central area is extended to the two second peripheral areas in a curved shape with a variable curvature, so as to effectively suppress and improve the problem of dark state light leakage. In this way, while effectively suppressing and improving the problem of dark state light leakage, the proportion of the curves of the first central area and the second central area can be maximized, thereby maintaining the contour appearance of the perfect circular curve of most of the panel body, maintaining good image quality and providing users with a good experience.

In order to make the above features and advantages of the present invention more clearly understood, embodiments are specifically cited below and described in detail with reference to the accompanying drawings.

The display panel 50 of the present invention is described in detail below. The embodiments of the present invention can be understood together with the drawings, and the drawings of the present invention are also considered as part of the disclosure. It should be understood that the drawings of the present invention are not drawn according to scale. In fact, the size of the components may be arbitrarily enlarged or reduced in order to clearly show the features of the present invention. In the specification and drawings, the same or similar components will be represented by similar symbols.

As used herein, "about", "approximately", "substantially", or "substantially" include the stated value and the average value within an acceptable deviation range of a particular value determined by a person of ordinary skill in the art, taking into account the measurement in question and the specific amount of error associated with the measurement (i.e., the limitations of the measurement system). For example, "about" can mean within one or more standard deviations of the stated value, or, for example, within ±30%, ±20%, ±15%, ±10%, ±5%. Furthermore, as used herein, "about", "approximately", "substantially", or "substantially" can select a more acceptable deviation range or standard deviation depending on the measured property, cutting property or other property, and can apply to all properties without using one standard deviation.

Reference will now be made in detail to exemplary embodiments of the present invention, examples of which are illustrated in the accompanying drawings.

FIG. 1 is a three-dimensional schematic diagram of a panel body of a display panel according to an embodiment of the present invention. FIG. 2 is a top view schematic diagram of the panel body of FIG. 1 . FIG. 3 is a side view schematic diagram of the panel body of FIG. 1 along the section line A-A. FIG. 4 is a side view schematic diagram of the panel body of FIG. 1 along the section line B-B. At the same time, rectangular coordinates X-Y-Z are provided to facilitate the subsequent description and reference of the components.

It should be noted that the proportions of the size, thickness, outline and other aspects of the panel body 100 of the panel 50 shown in the figure are for illustration only. Furthermore, in order to clearly illustrate the panel body 100, the dotted frames of the two first peripheral areas 103 in FIG. 2 are slightly away from the corresponding second side 112 and the first central area 101, respectively, and the dotted frames of the two second peripheral areas 104 are slightly away from the corresponding first side 111 and the second central area 102, respectively. However, in reality, the two first peripheral areas 103 may be areas covering the corresponding second side 112 and connected to the first central area 101, and the two second peripheral areas 104 may be areas covering the corresponding first side 111 and connected to the second central area 102, and the present invention is not limited thereto.

1 and 2 , the display panel 50 of the present embodiment includes a panel body 100. The panel body 100 has two opposite first side edges 111 and two opposite second side edges 112, wherein the two second side edges 112 are connected between the two first side edges 111, and the length L1 ( FIG. 2 ) of each first side edge 111 is greater than the length L2 ( FIG. 2 ) of each second side edge 112.

For details, please refer to FIG. 2 . In this embodiment, the panel body 100 includes a first central area 101, a second central area 102, two first peripheral areas 103, and two second peripheral areas 104. The two first peripheral areas 103 extend symmetrically from the first central area 101 along the Y axis to the two second side edges 112. The two second peripheral areas 104 extend symmetrically from the second central area 102 along the X axis to the two first side edges 111.

In more detail, please refer to FIG. 3 and FIG. 4. In this embodiment, each first side 111 has a first cross section A1 (FIG. 3), and the radius of curvature of the first central area 101 in the first cross section A1 is different from the radius of curvature of the two first peripheral areas 103 in the first cross section A1. Each second side 112 has a second cross section A2 (FIG. 4), and the radius of curvature of the second central area 102 in the second cross section A2 is different from the radius of curvature of the two second peripheral areas 104 in the second cross section A2.

It should be noted that, in one embodiment, the first central area 101 has a curve profile in the first section A1 that is a perfect circular curve, and the second central area 102 has a curve profile in the second section A2 that is a perfect circular curve, but this is not limiting.

In one embodiment, the radius of curvature of the first central region 101 in the first cross section A1 is smaller than the radius of curvature of the second central region 102 in the second cross section A2, but this is not limiting.

In one embodiment, as shown in FIG. 2 , the panel body 100 has four corners 105, the second central area 102 partially overlaps with the first central area 101, the two second peripheral areas 104 partially overlap with the two first peripheral areas 103, and the overlapping parts of the two second peripheral areas 104 and the two first peripheral areas 103 are located at these corners 105, but this is not a limitation.

As described above, by designing the first central area 101 and the second central area 102 to have a curved profile, the dark-state light leakage of the panel body 100 is concentrated at the overlapping portion of the two first peripheral areas 103 and the two second peripheral areas 104 (i.e., the four corners 105 of the panel body 100), and by utilizing the first central area 101 extending to the two first peripheral areas 103 and the second central area 102 extending to the two second peripheral areas 104 to form a variable curvature bending shape, the problem of dark-state light leakage is effectively suppressed and improved.

In this way, the panel body 100 of this embodiment can effectively suppress and improve the problem of dark-state light leakage while maximizing the curve proportions of the first central area 101 and the second central area 102, thereby maintaining the contour shape of a perfect circular curve for most of the panel body 100, so that the position of the user's eyes to each point of the panel body 100 is consistent, achieving the advantages of eliminating distortion, providing a wider field of view, and reducing user eye fatigue.

The outline and structure of the panel body 100 are further described below.

Referring to FIG. 3 , in this embodiment, each first peripheral region 103 has a first end E1 and a second end E2 opposite to each other in the first cross section A1 , wherein the first end E1 is connected to the first central region 101 , and the second end E2 is located at the corresponding second side 112 .

In one embodiment, as shown in FIG. 3 , a horizontal distance D1 between the first end E1 and the second end E2 in the Y-axis direction is greater than 0 times the length L1 of the first side 111, and a horizontal distance D1 between the first end E1 and the second end E2 in the Y-axis direction is less than or equal to 0.05 times the length L1 of the first side 111, but is not limited thereto.

That is to say, compared with the currently commercially available curved display panels (each side has a tangent contour and the area where the contour is located is often greater than 0.15 times the total length of the curved display panel), the panel body 100 of this embodiment can effectively reduce the proportion of the area where the first peripheral area 103 is located while suppressing and improving dark-state light leakage to the same extent, thereby maximizing the curve proportion of the first central area 101.

In one embodiment, as shown in FIG. 3 , the first central region 101 has a virtual curve 106 on the first cross section A1, and the virtual curve 106 extends to a virtual end E5 corresponding to the second side 112, and a vertical distance D2 between the virtual end E5 and the second end E2 in the Z-axis direction is greater than 0 cm, and a vertical distance D2 between the virtual end E5 and the second end E2 in the Z-axis direction is less than or equal to 0.5 cm, but not limited thereto. In other words, the bending directions of the two first peripheral regions 103 can be the same direction or opposite direction as the bending direction of the first central region 101, or can be a contour with a curvature of 0 (i.e., a tangent).

Referring to FIG. 4 , in this embodiment, each second peripheral region 104 has a third end E3 and a fourth end E4 opposite to each other in the second cross section A2 , wherein the third end E3 is connected to the second central region 102 , and the fourth end E4 is located at the corresponding first side 111 .

In one embodiment, as shown in FIG. 4 , a horizontal distance D3 between the third end E3 and the fourth end E4 in the X-axis direction is between 6 cm and 9 cm, but is not limited thereto.

In one embodiment, as shown in FIG. 4 , the second central region 102 has a center of curvature 107 in the second section A2, a vertical distance D4 between the third end E3 and the center of curvature 107 in the Z-axis direction is greater than 0 cm, and a vertical distance D4 between the third end E3 and the center of curvature 107 in the Z-axis direction is less than or equal to 0.4 cm, but is not limited thereto.

In one embodiment, as shown in FIG. 4 , the second central region 102 has a center of curvature 107 in the second section A2, a vertical distance D5 between the fourth end E4 and the center of curvature 107 in the Z-axis direction is greater than 0 cm, and a vertical distance D5 between the fourth end E4 and the center of curvature 107 in the Z-axis direction is less than or equal to 0.5 cm, but is not limited thereto.

That is, the bending direction of the second peripheral area 104 between the third end E3 and the fourth end E4 can be the same direction as or opposite to the bending direction of the second central area 102, or can be a contour with a curvature of 0 (ie, a tangent).

In one embodiment, a vertical distance D4 between the third end E3 and the center of curvature 107 in the Z-axis direction is different from a vertical distance D5 between the fourth end E4 and the center of curvature 107 in the Z-axis direction, but the present invention is not limited thereto.

It is worth mentioning that, through simulation and experimental results, it can be known that the panel body 100 has a better image quality when the vertical distance D4 between the third end E3 and the center of curvature 107 in the Z-axis direction is different from the vertical distance D5 between the fourth end E4 and the center of curvature 107 in the Z-axis direction.

In this way, by limiting the outline and structure of the panel body 100 as described above, the curve proportion of the first central area 101 can be effectively maximized while suppressing dark state light leakage to the same extent as the currently commercially available curved display panels, thereby maintaining good image quality and providing users with a good experience.

In summary, in the display panel of the present invention, the panel body is designed with a curved profile in both the first central area and the second central area, so that the dark state light leakage of the panel body is concentrated at the overlap of the two first peripheral areas and the two second peripheral areas, and the first central area is extended to the two first peripheral areas and the second central area is extended to the two second peripheral areas in a curved shape with a variable curvature, so as to effectively suppress and improve the problem of dark state light leakage. In this way, while effectively suppressing and improving the problem of dark state light leakage, the proportion of the curves of the first central area and the second central area can be maximized, thereby maintaining the contour shape of the perfect circular curve of most of the panel body, maintaining good image quality and providing users with a good experience.

Although the present invention has been disclosed as above by the embodiments, they are not intended to limit the present invention. Any person with ordinary knowledge in the relevant technical field can make some changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be defined by the scope of the attached patent application.

50: Display panel 100: Panel body 101: First central area 102: Second central area 103: First peripheral area 104: Second peripheral area 105: Corner 106: Virtual curve 107: Center of curvature 111: First side 112: Second side A1: First section A2: Second section E1: First end E2: Second end E3: Third end E4: Fourth end E5: Virtual end D1, D3: Horizontal distance D2, D4, D5: Vertical distance L1, L2: Length X-Y-Z: Cartesian coordinates

FIG. 1 is a three-dimensional schematic diagram of a panel body of a display panel according to an embodiment of the present invention. FIG. 2 is a top view schematic diagram of the panel body of FIG. 1 . FIG. 3 is a side view schematic diagram of the panel body of FIG. 1 along the section line A-A. FIG. 4 is a side view schematic diagram of the panel body of FIG. 1 along the section line B-B.

50: Display panel

100: Panel body

111: First side

112: Second side

X-Y-Z: Cartesian coordinates

Claims (10)

A display panel comprises: A panel body having two opposite first sides and two opposite second sides, wherein the two second sides are connected between the two first sides, the length of each first side is greater than the length of each second side, and comprises: A first central area; A second central area; Two first peripheral areas, extending symmetrically from the first central area to the two second sides, wherein each first side has a first section, and the curvature radius of the first central area in the first section is different from the curvature radius of the two first peripheral areas in the first section; and The two second peripheral regions extend symmetrically from the second central region to the two first side edges, wherein each of the second side edges has a second cross section, and the radius of curvature of the second central region in the second cross section is different from the radius of curvature of the two second peripheral regions in the second cross section. A display panel as described in claim 1, wherein the second central area partially overlaps with the first central area, and the two second peripheral areas partially overlap with the two first peripheral areas. A display panel as described in claim 1, wherein the panel body has multiple corners, and the overlapping parts of the two second peripheral areas and the two first peripheral areas are located at the corners. A display panel as described in claim 1, wherein a radius of curvature of the first central area in the first cross-section is smaller than a radius of curvature of the second central area in the second cross-section. A display panel as described in claim 1, wherein each first peripheral area has a first end and a second end relative to the first section, the first end is connected to the first central area, and the second end is located at the corresponding second side, the horizontal distance between the first end and the second end is greater than 0 times the length of the first side, and the horizontal distance between the first end and the second end is less than or equal to 0.05 times the length of the first side. A display panel as described in claim 1, wherein each of the first peripheral areas has a first end and a second end opposite to each other in the first section, the first end is connected to the first central area, and the second end is located at the corresponding second side, the first central area has a virtual curve in the first section, the virtual curve extends to a virtual end corresponding to the second side, the vertical distance between the virtual end and the second end is greater than 0 cm, and the vertical distance between the virtual end and the second end is less than or equal to 0.5 cm. A display panel as described in claim 1, wherein each second peripheral area has a third end and a fourth end opposite to each other in the second cross-section, the third end is connected to the second central area, and the fourth end is located at the corresponding first side, and the horizontal distance between the third end and the fourth end is between 6 cm and 9 cm. A display panel as described in claim 1, wherein the second central area has a center of curvature in the second cross-section, and each of the second peripheral areas has a third end connected to the second central area in the second cross-section, the vertical distance between the third end and the center of curvature is greater than 0 cm, and the vertical distance between the third end and the center of curvature is less than or equal to 0.4 cm. A display panel as described in claim 1, wherein the second central area has a center of curvature in the second cross-section, and each of the second peripheral areas has a fourth end in the second cross-section located on the corresponding first side, the vertical distance between the fourth end and the center of curvature is greater than 0 cm, and the vertical distance between the fourth end and the center of curvature is less than or equal to 0.5 cm. A display panel as described in claim 1, wherein each second peripheral area has a third end and a fourth end opposite to each other in the second cross-section, the third end is connected to the second central area, the fourth end is located at the corresponding first side, the second central area has a center of curvature in the second cross-section, and the vertical distance between the third end and the center of curvature is different from the vertical distance between the fourth end and the center of curvature.

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