WO2018196081A1

WO2018196081A1 - Display panel, and display device

Info

Publication number: WO2018196081A1
Application number: PCT/CN2017/085989
Authority: WO
Inventors: 唐岳军
Original assignee: 武汉华星光电技术有限公司
Priority date: 2017-04-25
Filing date: 2017-05-25
Publication date: 2018-11-01
Also published as: CN106873224A

Abstract

A display panel, and display device. The display panel comprises: a normal display region (110) comprising multiple first pixel units (130); a dimmed display region (120) arranged around the normal display region (110) and comprising multiple second pixel units (140); and a non-display region (200) arranged around the dimmed display region (120). The transmittance of the non-display region (200) is lower than the transmittance of the dimmed display region (120), and the transmittance of the dimmed display region (120) is lower than the normal display region (110), thus improving the appearance at a periphery of a display region (100), and enhancing user experience.

Description

Display panel and display device

The present invention claims the priority of the prior application of the application No. CN201710279470.X, entitled "A Display Panel and Display Device", filed on April 25, 2017, the contents of which are incorporated herein by reference. in.

Technical field

The present invention belongs to the field of display technologies, and in particular, to a display panel and a display device.

Background technique

With the development of smart technology, wearable devices are becoming more and more popular. With the development of wearable electronic products, the human-computer interaction interfaces of these wearable devices no longer use traditional rectangular panels, but are increasingly used. The panel of the profiled display area (generally the panel is also shaped) includes circular, elliptical, octagonal, hexagonal, etc. shapes to meet the wearability of the smart device or to satisfy its stylish design.

However, in the prior art, at least the following problems exist: the display panel includes a display area (ie, a pixel area), a black matrix area, and a plastic edge area. Of course, in order to avoid light leakage, the plastic edge area also needs to be filled with a black matrix material. Since the conventional pixel design is rectangular, the display area of the irregular shape is satisfied, and the periphery of the display area is formed into a shape of a curved shape, a beveled edge, etc., and the pixels are arranged in a step shape in a shape of a boundary to form a stepped edge, which are arranged in a stepped manner. The pixels at the edge of the profiled edge can only be approximated to be curved or beveled, which will result in a strong contrast of brightness between the stepped edge of the display area with display brightness and the fully-formed dark edged area, so that the display area The edges can be recognized by the human eye, reducing the visual effect of the edges of the display panel and seriously affecting the user experience.

Summary of the invention

A technical problem to be solved by embodiments of the present invention is to provide a display panel and a display device. It can improve the visual sense of the edge of the display area and improve the user experience.

In order to solve the above technical problem, the first aspect of the present invention provides a display panel, including:

a normal display area including a plurality of first pixel units;

a darkened display area disposed around the normal display area, comprising a plurality of second pixel units;

a non-display area disposed around the darkened display area; wherein

The light transmittance of the non-display area is lower than the light transmittance of the darkened display area, and the light transmittance of the darkened display area is smaller than the light transmittance of the normal display area.

The boundary between the non-display area and the darkened display area is stepped.

The darkened display area includes a plurality of second black matrices, and the second black matrix covers a portion of the second pixel units to reduce light transmittance of the darkened display area.

The area of the second black matrix covering the second pixel unit is smaller than 1/2 of the area of the second pixel unit.

The second pixel unit includes three sub-pixels, and the second black matrix blocks three sub-pixel partial areas.

The second pixel unit includes a shielding portion and a light transmitting portion, and a boundary line between the shielding portion and the light transmitting portion is a horizontal line, a vertical line or a diagonal line; or the second pixel unit includes a cover The living portion and the light transmitting portion are disposed around the light transmitting portion.

The darkened display area includes a first darkened display area and a second darkened display area, the first darkened display area is disposed adjacent to the normal display area, and the second darkened display area is adjacent to the The non-display area is set, and the light transmittance of the second darkened display area is smaller than the light transmittance of the first darkened display area.

The display panel includes an array substrate, a filter substrate opposite to the array substrate, and a liquid crystal layer between the array substrate and the filter substrate, wherein the second black matrix is located on the filter substrate. on.

The non-display area includes a plurality of third pixel units and a plurality of third black matrices, and the third black matrix completely covers the third pixel unit.

A second aspect of the present invention provides a display device, including:

a display panel, which is the display panel described above;

A backlight for providing light required by the display panel, the backlight being located on a back side of the display panel.

Embodiments of the present invention have the following beneficial effects:

Since the display panel includes a normal display area, a darkened display area, and a non-display area, and the darkened display area is disposed around the normal display area, the non-display area is disposed around the darkened display area, The light transmittance of the non-display area is lower than the light transmittance of the darkened display area, and the light transmittance of the darkened display area is smaller than the light transmittance of the normal display area, so that the normal display area and the non-display area The brightness has a transition portion which darkens the display area, so that a strong brightness contrast is not formed, so that the boundary line between the display area and the non-display area is not easily recognized by the human eye, thereby facilitating the improvement of the edge of the display panel. The effect is beneficial to the user's experience.

DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description are only It is a certain embodiment of the present invention, and other drawings can be obtained from those skilled in the art without any creative work.

1 is a schematic structural view of a display panel according to a first embodiment of the present invention;

2 is a schematic diagram of a second pixel unit according to a first embodiment of the present invention;

3 is a schematic diagram of a second pixel unit according to an embodiment of the present invention;

4 is a schematic diagram of a second pixel unit according to another embodiment of the present invention;

FIG. 5 is a schematic diagram of a second pixel unit according to still another embodiment of the present invention; FIG.

6 is a schematic structural view of a display panel according to a second embodiment of the present invention;

Fig. 7 is a schematic structural view of a display panel according to a third embodiment of the present invention.

detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, but not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

The terms "comprising" and "having", and any variations thereof, appearing in the specification, the claims, and the drawings are intended to cover a non-exclusive inclusion. For example, it contains a series of steps or units The processes, methods, systems, products, or devices are not limited to the listed steps or units, but may alternatively include steps or units not listed, or, optionally, also include those processes, methods, products, or devices Other steps or units inherent. Moreover, the terms "first," "second," and "third," etc. are used to distinguish different objects, and are not intended to describe a particular order.

First embodiment

The embodiment of the present invention provides a display panel. In the embodiment, the display panel is a liquid crystal display panel. Of course, in other embodiments of the present invention, the display panel may also be an OLED panel or other display panel. Referring to FIG. 1 , the display panel includes a display area 100 and an undisplayed area 200. The display area 100 is an area for displaying an image by a normal display panel. The display area 100 is shaped, that is, non-rectangular, such as a display area. 100 is a non-rectangular shape such as a circle, an ellipse, an octagon, or a hexagon to meet the needs of different functions. The non-display area 200 is an area in which display panel wiring, driving, or the like is placed. The display panel as a whole may be irregular or rectangular.

Since the conventional pixel is rectangular, it is necessary to satisfy the display area 100 to be shaped, and even if the boundary line between the display area 100 and the non-display area 200 is macroscopically formed into an approximately curved shape, an approximate oblique shape, or the like, and the design is convenient, the black matrix can be adopted. The pixels are shielded so that the boundary between the display area 100 and the non-display area 200 is stepped, thereby forming an approximate curved shape, an approximate oblique shape, or the like, and the approximate curved shape, the approximate oblique shape, and the like may constitute the boundary of the shaped display area 100. line.

Specifically, in the embodiment, the non-display area 200 includes a plastic edge area 210 and a black matrix area 220, and the plastic edge area 210 is used to make the boundary line between the display area 100 and the non-display area 200 stepped (please See the thick black line in Figure 1 to make the display area 100 profiled. The plastic edge region 210 is a black matrix material covering the pixels to form a stepped boundary line. In the illustrated embodiment of FIG. 1 and the like, the plastic edge region 210 includes a plurality of pixels and is completely blocked by the black matrix material. The pixel pattern structure of the edge region is not limited, and the pixel pattern may be located on the upper substrate or/and the lower substrate. In other embodiments of the invention, the edging zone in the display panel may comprise only black matrix material coverage without pixel patterns. The black matrix region 220 is located outside the plastic edge region 210, and the black matrix region 220 is also provided with a black matrix material for shielding light. In this embodiment, the black matrix in the non-display area 200 is called A black matrix 230, that is, a black matrix in the black matrix region 220 and the plastic edge region 210 is referred to as a first black matrix 230, and the first black matrix 230 is integrally formed.

In the embodiment, the display area 100 includes a normal display area 110 and a darkened display area 120. The normal display area 110 includes a plurality of first pixel units 130, and the plurality of pixel units form a plurality of rows and columns. In this embodiment, the first pixel unit 130 includes three sub-pixels, which are a red first sub-pixel 131, a green first sub-pixel 132, and a blue first sub-pixel 133. The normal display area 110 passes normal. The brightness display image, the darkened display area 120 is designed to display an image lower than the normal brightness, and the darkened display area 120 includes a plurality of second pixel units 140. In this embodiment, the second pixel unit 140 is also The three sub-pixels are respectively a red second sub-pixel 143, a green second sub-pixel 144, and a blue second sub-pixel 145. The darkened display area 120 is located between the normal display area 110 and the non-display area 200. That is, the darkened display area 120 is disposed around the normal display area 110, and the non-display area 200 is disposed around the darkened display area 120, that is, the plasticized area 210 surrounds the darkened display area 120. Setting, the black matrix area 220 The plastic border 210 is provided.

In the embodiment, the light transmittance of the non-display area 200 is lower than the light transmittance of the darkened display area 120, in order to reduce the level of the stepped edge of the display area 100 being recognized by the human eye. The light transmittance of the darkened display region 120 is smaller than the light transmittance of the normal display region 110. Specifically, the display panel in the non-display area 200 is opaque, that is, the light transmittance is 0 or close to 0, and the normal display area 110 is used for normal display, that is, normal light transmittance, and The darkened display area 120 is located between the non-display area 200 and the normal display area 110, and the light transmittance of the darkened display area 120 is lower than the light transmittance of the normal display area 110, so that the normal display area 110 and the non-display area 200 The brightness between the display areas 120 is dimmed, so that a strong brightness contrast is not formed, so that the boundary line between the display area 100 and the non-display area 200 is not easily recognized by the human eye, and is specifically displayed in this embodiment. The stepped boundary line between the area 100 and the non-display area 200 is not easily recognized by the human eye, thereby facilitating the visual effect of the edge of the display panel and facilitating the user's experience.

In the present embodiment, the dimmed display area 120 includes a plurality of second black matrices 240, the second black, in order to achieve a light transmittance of the darkened display area 120 that is smaller than the light transmittance of the normal display area 110. The matrix 240 blocks a portion of the second pixel unit 140 to reduce the light transmittance of the darkened display region 120.

In this embodiment, the plurality of the second pixel units 140 form a plurality of rows, each row includes one or more second pixel units 140, and each row in FIG. 1 illustrates a second pixel unit 140, each second The pixel unit 140 includes a red second sub-pixel 143, a green second sub-pixel 144, and a blue second sub-pixel 145, and the second black matrix 240 covers the red second sub-pixel 143 portion. The area, the green second sub-pixel 144 partial area, and the blue second sub-pixel 145 partial area. Specifically, in this embodiment, referring to FIG. 2, the second pixel unit 140 includes a shielding portion 141 and a light transmitting portion 142, that is, the red second sub-pixel 143 and the green second sub-pixel 144. The blue second sub-pixel 145 includes a shielding portion 141 and a light transmitting portion 142, and a boundary line between the shielding portion 141 and the light transmitting portion 142 is a horizontal line. In the embodiment, the shielding portion 141 The upper portion of the light transmitting portion 142, that is, the shielding portion 141 of the red second sub-pixel 143 is located on the upper side of the light transmitting portion 142 of the red second sub-pixel 143, and the green second sub-pixel 144 is covered. The living portion 141 is located on the upper side of the transparent portion 142 of the green second sub-pixel 144, and the shielding portion 141 of the blue second sub-pixel 145 is located on the transparent portion 142 of the blue second sub-pixel 145. side. In addition, in other embodiments of the present invention, referring to FIG. 3, a boundary line between the shielding portion 341 and the light transmitting portion 342 is a diagonal line. In addition, in other real time of the present invention, referring to FIG. 4, the boundary line between the shielding portion 441 and the light transmitting portion 442 is a vertical line. In this embodiment, the shielding portion 441 is located at the The left side of the light transmitting portion 442 is located on the right side of the shielding portion 441. In addition, in another embodiment of the present invention, referring to FIG. 5, the light transmitting portion 542 is located at a center position, the shielding portion 541 is located outside, and the shielding portion 541 is disposed around the light transmitting portion 542. In addition, in other embodiments of the present invention, the arrangement of the shielding portion and the light transmitting portion may be other forms.

In this embodiment, the second black matrix 240 covers the second pixel unit 140 with an area smaller than 1/2 of the area of the second pixel unit 140, for example, 1/3, 1/4, 1/5, 1/6, 1/7, 1/8, 1/9, 1/10, etc., preferably greater than 1/10 and less than 1/3, so that the brightness of the second pixel unit 140 can be lowered or not The second pixel unit 140 is too dark, so that the transition between the darkened display area 120 and the normal display area 110 is relatively gentle.

In addition, in the embodiment, the non-display area 200 includes a plurality of third pixel units and a plurality of third black matrices, the third black matrix is a part of the first black matrix, and each of the third pixels The unit includes a red sub-pixel, a green sub-pixel, and a blue sub-pixel, and the third black matrix completely covers the third pixel unit.

In addition, in the embodiment, in the display area 100, the sub-pixels and the sub-pixels are also separated by a black matrix material, which is common knowledge in the art, and will not be described herein.

In this embodiment, the display panel includes an array substrate, a filter substrate, and a liquid crystal layer. The filter substrate is disposed opposite to the array substrate, and the liquid crystal layer is located on the array substrate and the filter substrate. Between the plates, the second black matrix 240 is located on the filter substrate.

In addition, an embodiment of the present invention further provides a display device including the above display panel and a backlight, wherein the backlight is used to provide light required by the display panel, and the backlight is located on the display panel. Back side. In an embodiment of the invention, the backlight is an LED backlight. In addition, in other embodiments of the present invention, the reduction of the transmittance of the darkened display area 120 is not limited to being achieved by the shading of the second black matrix 240, and may also be achieved by controlling the brightness of the backlight, such as illumination. The brightness of the backlight of the darkened display area 120 is less than the brightness of the backlight that emits light to the normal display area 110.

Second embodiment

FIG. 6 is a display panel according to a second embodiment of the present invention. The structure of FIG. 6 is similar to the structure of FIG. 1. Therefore, the same component symbols represent the same components. The main difference between this embodiment and the first embodiment is that The second pixel unit contains the number of sub-pixels.

In this embodiment, the darkened display area 120 includes a plurality of second pixel units 640, and the plurality of second pixel units 640 form a plurality of rows, each row including one or more second pixel units 640, FIG. Each row indicates a second pixel unit 640, and the second pixel unit 640 includes only one sub-pixel, and the sub-pixels may be a red second sub-pixel, a green second sub-pixel, a blue second sub-pixel, etc. The second black matrix 240 covers portions of the sub-pixels, thereby reducing the aperture ratio of the darkened display region 120, thereby reducing the brightness of the darkened display region 120.

Third embodiment

FIG. 7 is a display panel according to a third embodiment of the present invention. The structure of FIG. 7 is similar to the structure of FIG. 1. Therefore, the same component symbols represent the same components. The main difference between this embodiment and the first embodiment is that Darken the display area.

In the embodiment, the darkened display area 720 includes a first darkened display area 721 and a second darkened display area 722, and the first darkened display area 721 is disposed adjacent to the normal display area 110, The second darkened display area 722 is disposed adjacent to the non-display area 200, and the second darkened display area 722 is located between the non-display area 200 and the first darkened display area 721, the first change a dark display area 721 is located between the second darkened display area 722 and the normal display area 110, and the second darkened display area The light transmittance of the first darkened display region 721 is smaller than the light transmittance of the second darkened display region 722, and the light transmittance is lower than the light transmittance of the second darkened display region 722. The light transmittance of the second darkened display region 722 is smaller than the light transmittance of the first darkened display region 721, and the light transmittance of the first darkened display region 721 is smaller than the light transmittance of the normal display region 110.

In this embodiment, the second pixel unit includes a first sub-pixel unit 741 and a second sub-pixel unit 742, where the first sub-pixel unit 741 is located in the first darkened display area 721, and the second sub-pixel The unit 742 is located in the second darkened display area 722, and the second black matrix 240 covers the area of the first sub-pixel unit 741 to be smaller than the area of the second sub-pixel unit 742. In this embodiment, the first sub-pixel unit 741 includes a first red sub-pixel 743, a first green sub-pixel 744, and a first blue sub-pixel 745, and the second sub-pixel unit 742 includes a second red sub-pixel. a pixel 746, a second green sub-pixel 747, and a second blue sub-pixel 748. The second black matrix 240 covers a partial area of the first red sub-pixel 743, a partial area of the first green sub-pixel 744, and a first blue sub-pixel. a partial area of the pixel 745, a partial area of the second red sub-pixel 746, a partial area of the second green sub-pixel 747, a partial area of the second blue sub-pixel 748, and the second black matrix 240 covers a portion of the first red sub-pixel 743 that is smaller than a portion. Blocking a portion of the second red sub-pixel 746, the second black matrix 240 covers a portion of the first green sub-pixel 744 that is smaller than the area of the second green sub-pixel 747, and the second black matrix 240 covers the first blue sub-frame. The partial area of the pixel 745 is smaller than the area of the second blue sub-pixel 748. As to how the second black matrix 240 covers the first sub-pixel unit 741 and the second sub-pixel unit 742, reference may be made to the first embodiment.

In this embodiment, the darkened display area includes a first darkened display area and a second darkened display area, but the present invention is not limited thereto, and in other embodiments of the present invention, the darkened display area is further The first darkened display area, the second darkened display area, and the third darkened display area may be included, wherein the first darkened display area is disposed adjacent to the normal display area, and the third darkened display area is adjacent to The non-display area is disposed, the second darkened display area is located between the third darkened display area and the first darkened display area, and the light transmittance of the third darkened display area is smaller than Transmittance of the second darkened display area, the light transmittance of the second darkened display area is smaller than the light transmittance of the first darkened display area, that is, the light transmittance of the non-display area is smaller than The light transmittance of the third darkened display area, the light transmittance of the third darkened display area is smaller than the light transmittance of the second darkened display area, and the light transmittance of the second darkened display area is smaller than The light transmittance of the first darkened display region is smaller than the light transmittance of the normal display region. In addition, in this In other embodiments of the invention, the darkened display area may further include more sub-dark display areas, that is, the darkened display area includes a first darkened display area, a second darkened display area, and a third variable. a dark display area, a fourth darkened display area, ..., an Nth darkened display area, where N is an integer greater than or equal to 4.

It should be noted that the various embodiments in the present specification are described in a progressive manner, and each embodiment focuses on differences from other embodiments, and the same similar parts between the various embodiments are mutually referred to. can. For the device embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the description of the method embodiment.

Through the description of the above embodiments, the present invention has the following advantages:

Since the display panel includes a normal display area, a darkened display area, and a non-display area, and the darkened display area is disposed around the normal display area, the non-display area is disposed around the darkened display area, The light transmittance of the non-display area is lower than the light transmittance of the darkened display area, and the light transmittance of the darkened display area is smaller than the light transmittance of the normal display area, so that the normal display area and the non-display area The brightness has a transition portion that darkens the display area, so that a strong brightness contrast is not formed, so that a stepped boundary line between the display area and the non-display area is not easily recognized by the human eye, thereby facilitating the edge of the display panel. The visual effect is beneficial to the user's experience.

The above is only the preferred embodiment of the present invention, and the scope of the present invention is not limited thereto, and thus equivalent changes made in the claims of the present invention are still within the scope of the present invention.

Claims

A display panel, comprising:

a normal display area including a plurality of first pixel units;

a darkened display area disposed around the normal display area, comprising a plurality of second pixel units;

a non-display area disposed around the darkened display area; wherein

The light transmittance of the non-display area is lower than the light transmittance of the darkened display area, and the light transmittance of the darkened display area is smaller than the light transmittance of the normal display area.
The display panel according to claim 1, wherein a boundary line between the non-display area and the darkened display area is stepped.
The display panel of claim 1, wherein the darkened display area comprises a plurality of second black matrices, the second black matrix obscuring a portion of the second pixel unit to reduce the darkened display area Transmittance.
The display panel of claim 3, wherein the second black matrix covers an area of the second pixel unit that is smaller than 1/2 of an area of the second pixel unit.
The display panel of claim 3, wherein the second pixel unit includes three sub-pixels, and the second black matrix blocks three sub-pixel portion areas.
The display panel according to claim 3, wherein the second pixel unit includes a shielding portion and a light transmitting portion, and a boundary line between the shielding portion and the light transmitting portion is a horizontal line, a vertical line, or a diagonal line. Or the second pixel unit includes a shielding portion and a light transmitting portion, and the shielding portion is disposed around the light transmitting portion.
The display panel according to claim 1, wherein the darkened display area comprises a first darkened display area and a second darkened display area, the first darkened display area being disposed adjacent to the normal display area, The second darkened display area is disposed adjacent to the non-display area, and the light transmittance of the second darkened display area is less than The light transmittance of the first darkened display area.
The display panel of claim 3, wherein the display panel comprises an array substrate, a filter substrate opposite to the array substrate, and a liquid crystal layer between the array substrate and the filter substrate, Two black matrices are located on the filter substrate.
The display panel of claim 1, wherein the non-display area comprises a plurality of third pixel units and a plurality of third black matrices, the third black matrix completely obscuring the third pixel unit.
A display device, comprising:

Display panel, which includes:

a normal display area including a plurality of first pixel units;

a darkened display area disposed around the normal display area, comprising a plurality of second pixel units;

a non-display area disposed around the darkened display area; wherein

The light transmittance of the non-display area is lower than the light transmittance of the darkened display area, and the light transmittance of the darkened display area is smaller than the light transmittance of the normal display area.

A backlight for providing light required by the display panel, the backlight being located on a back side of the display panel.
The display device according to claim 10, wherein a boundary line between said non-display area and said darkened display area is stepped.
The display device of claim 10, wherein the darkened display area comprises a plurality of second black matrices, the second black matrix obscuring a portion of the second pixel unit to reduce the darkened display area Transmittance.
The display device of claim 12, wherein the second black matrix covers an area of the second pixel unit that is smaller than 1/2 of an area of the second pixel unit.
The display device of claim 12, wherein the second pixel unit comprises three sub-pixels, and the second black matrix blocks three sub-pixel portion areas.
The display device according to claim 12, wherein the second pixel unit includes a shielding portion and a light transmitting portion, and a boundary line between the shielding portion and the light transmitting portion is a horizontal line, a vertical line, or a diagonal line. Or the second pixel unit includes a shielding portion and a light transmitting portion, and the shielding portion is disposed around the light transmitting portion.
The display device according to claim 10, wherein the darkened display area comprises a first darkened display area and a second darkened display area, the first darkened display area being disposed adjacent to the normal display area, The second darkened display area is disposed adjacent to the non-display area, and the light transmittance of the second darkened display area is smaller than the light transmittance of the first darkened display area.
The display device according to claim 12, wherein the display panel comprises an array substrate, a filter substrate opposite to the array substrate, and a liquid crystal layer between the array substrate and the filter substrate, Two black matrices are located on the filter substrate.
The display device of claim 10, wherein the non-display area comprises a plurality of third pixel units and a plurality of third black matrices, the third black matrix completely obscuring the third pixel unit.