WO2020151118A1

WO2020151118A1 - Liquid crystal display panel

Info

Publication number: WO2020151118A1
Application number: PCT/CN2019/084440
Authority: WO
Inventors: 樊勇
Original assignee: 深圳市华星光电半导体显示技术有限公司
Priority date: 2019-01-21
Filing date: 2019-04-26
Publication date: 2020-07-30
Also published as: CN109633968A

Abstract

A liquid crystal display panel, comprising: an upper substrate (2), a lower substrate (7), an upper polarizer (1), a lower polarizer (5), a liquid crystal layer (3), a color filter (6), and a transparent layer (4). The upper polarizer (1) is provided on the upper substrate (2). The lower substrate (7) is provided directly opposite the upper substrate (2). The liquid crystal layer (3) is provided between the upper substrate (2) and the lower substrate (7). The lower polarizer (5) and the transparent layer (4) are provided between the lower substrate (7) and the liquid crystal layer (3). A partial area of the transparent layer (4) is provided without a thin-film transistor, the color filter (6), and the polarizers.

Description

LCD panel

Technical field

The application relates to the display field, and in particular to a liquid crystal display panel.

Background technique

With the rapid development of display technology, transparent display has attracted people's attention as a new type of application that has emerged in recent years. This technology has greatly expanded the scenarios and scope of display applications. In the traditional transparent display LCD (Liquid Crystal Display, liquid crystal display), due to the use of traditional direct-type backlight or edge-type backlight or direct ambient light as the light source, this makes the non-color area (that is, the transparent area) of the display The proportion is getting higher and higher, and the proportion of the color area will be reduced, so that the requirements of high brightness and high color saturation of the display screen cannot be met at the same time, and a new backlight solution needs to be provided to solve this problem.

Therefore, in the existing liquid crystal display technology, there is still a problem that the high brightness and high color saturation of the display screen cannot be satisfied at the same time, and improvement is urgently needed.

technical problem

The present application relates to a liquid crystal display panel, which is used to solve the problem in the prior art that the high brightness and high color saturation of the display screen cannot be satisfied at the same time.

Technical solutions

To solve the above problems, the technical solutions provided by this application are as follows:

The present application provides a liquid crystal display panel, including: an upper substrate, a lower substrate, an upper polarizer, a lower polarizer, a liquid crystal layer, a color filter, and a transparent layer; wherein,

The upper polarizer is arranged on the upper substrate and attached to the upper substrate;

The lower substrate is arranged directly opposite to the upper substrate;

The liquid crystal layer is disposed between the upper substrate and the lower substrate, the upper end surface of the liquid crystal layer is bonded to the upper substrate, and the lower end of the liquid crystal layer is bonded to the transparent layer;

The lower polarizer and the transparent layer are arranged between the lower substrate and the liquid crystal layer, wherein a thin film transistor, a color filter and a polarizer are not arranged in a partial area of the transparent layer; wherein, the upper The substrate and the lower substrate are glass substrates, quartz substrates or resin substrates.

According to a preferred embodiment provided by the present application, the transparent layer includes a first transparent area and a second transparent area.

According to a preferred embodiment provided by the present application, the second transparent area is not provided with thin film transistors, lower polarizers and color filters.

According to a preferred embodiment provided by the present application, the length of the second transparent area is less than the length of the first transparent area; the thickness of the second transparent area is greater than the thickness of the first transparent area and is equal to the first transparent area. The thickness of a transparent area plus the thickness of the lower polarizer plus the thickness of the color filter.

According to a preferred embodiment provided by the present application, the color filter includes: a red filter, a green filter, and a blue filter.

According to a preferred embodiment provided by the present application, the size, thickness, and material of the red filter, the green filter and the blue filter are completely the same.

According to a preferred embodiment provided by the present application, the upper substrate, the lower substrate, the upper polarizer, the lower polarizer, the liquid crystal layer, the red filter, and the green filter , The blue filter, the first transparent area and the second transparent area all include a first end surface, a second end surface, a third end surface, and a fourth end surface.

According to a preferred embodiment provided by the present application, the fourth end surface of the first transparent area, the fourth end surface of the lower polarizer, the fourth end surface of the blue filter and the second transparent area The third end face is attached, the second end face of the first transparent area is attached to the first end face of the lower polarizer, the first end face of the red filter, and the first end face of the green filter , The first end surface of the blue filter is attached to the second end surface of the lower polarizer, and the fourth end surface of the red filter is attached to the third end surface of the green filter; The fourth end surface of the green filter is attached to the third end surface of the blue filter.

According to a preferred embodiment provided by this application, the lower polarizer is a polarizer with a pattern.

According to a preferred embodiment provided by the present application, when the lower polarizer is manufactured, the pattern is first printed on the silver-plated reflective film, and then conforms to the polarizer.

According to a preferred embodiment provided by the present application, the length of the lower polarizer is smaller than the length of the upper polarizer, and the length of the upper substrate is equal to the length of the lower substrate.

According to a preferred embodiment provided by the present application, the lower substrate is thicker than the upper substrate.

According to a preferred embodiment provided by the present application, a spacer is further provided between the upper substrate and the transparent layer.

This application also provides another liquid crystal display panel, including: an upper substrate, a lower substrate, an upper polarizer, a lower polarizer, a liquid crystal layer, a color filter, and a transparent layer; wherein,

The lower substrate is arranged directly opposite to the upper substrate;

The lower polarizer and the transparent layer are arranged between the lower substrate and the liquid crystal layer, and a thin film transistor, a color filter and a polarizer are not arranged in a partial area of the transparent layer.

Beneficial effect

Compared with the prior art, this application provides a newly designed liquid crystal display panel. The liquid crystal display panel includes a display area and a non-display area. The pixels in the display area are composed of RGB sub-pixels. The non-display area is the second transparent area. , No color filter is provided to form a white sub-pixel. At the same time, the second transparent area is not provided with a thin film transistor and a lower polarizer. The non-polarizer can increase the transmittance of the transparent area, while the absence of a thin film transistor can improve the The aperture ratio of the second transparent area further enhances its light transmittance, so that a high-brightness liquid crystal display panel can be obtained without reducing the proportion of the color display area.

Description of the drawings

In order to more clearly describe the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings that need to be used in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

FIG. 1 is a schematic diagram of the structure of a liquid crystal display panel provided by an embodiment of the application.

Embodiments of the invention

The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of this application.

In the description of this application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " "Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise" and other directions or The positional relationship is based on the position or positional relationship shown in the drawings, and is only for the convenience of describing the application and simplifying the description, and does not indicate or imply that the pointed device or element must have a specific orientation, be constructed and operated in a specific orientation, Therefore, it cannot be understood as a restriction on this application. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined with “first” and “second” may explicitly or implicitly include one or more of the features. In the description of the present application, "plurality" means two or more than two, unless specifically defined otherwise.

Referring to Figure 1, 1 is the upper polarizer, 2 is the upper substrate, 3 is the liquid crystal layer, 31 is the liquid crystal, 41 is the first transparent zone, 42 is the second transparent zone, 6 is the color filter, and 61 is the red filter Sheet, 62 is a green filter, 63 is a blue filter, and 7 is a lower substrate.

A liquid crystal display panel provided by the present application includes: an upper substrate 1, a lower substrate 7, an upper polarizer 2, a lower polarizer 5, a liquid crystal layer 3, a color filter 6, and a transparent layer 4; wherein the upper polarizer The sheet 1 is arranged on the upper substrate 2 and attached to the upper substrate 2; the lower substrate 7 is arranged opposite to the upper substrate 2; the liquid crystal layer 3 is arranged on the upper substrate 2 And the lower substrate 7, the upper end surface of the liquid crystal layer 3 is attached to the upper substrate 2, and the lower end of the liquid crystal layer 3 is attached to the transparent layer 4; the lower polarizer 5 and the transparent The layer 4 is arranged between the lower substrate 7 and the liquid crystal layer 3, wherein a part of the transparent layer 4 is not provided with thin film transistors, color filters and polarizers. As we all know, adding a white area transmission area on the RGB three-color film substrate can increase the utilization rate of the liquid crystal display panel to the backlight, increase the display brightness of the liquid crystal display panel, and reduce the power consumption of the liquid crystal display panel. The second transparent zone is equivalent to this principle.

According to a preferred embodiment provided by the present application, the transparent layer 4 includes a first transparent region 41 and a second transparent region 42, and the second transparent region 42 is not provided with thin film transistors, lower polarizers and color filters; and The length of the second transparent region 42 is less than the length of the first transparent region 41; the thickness of the second transparent region 42 is greater than the thickness of the first transparent region 41 and equal to the thickness of the first transparent region 41 Add the thickness of the lower polarizer 5 plus the thickness of the color filter 6.

According to a preferred embodiment provided by the present application, the color filter 6 includes a red filter 61, a green filter 62 and a blue filter 63. The size, thickness and material of the red filter 61, the green filter 62 and the blue filter 63 are completely the same.

According to a preferred embodiment provided by the present application, the upper substrate 2, the lower substrate 7, the upper polarizer 1, the lower polarizer 5, the liquid crystal layer 3, the red filter 61, The green filter 62, the blue filter 63, the first transparent area 41 and the second transparent area 42 all include a first end surface, a second end surface, a third end surface, and a fourth end surface. The fourth end surface of the first transparent area 41, the fourth end surface of the lower polarizer 5, the fourth end surface of the blue filter 63 and the third end surface of the second transparent area 42 are attached to each other, The second end surface of the first transparent area 41 is attached to the first end surface of the lower polarizer 5, the first end surface of the red filter 61, the first end surface of the green filter 62, and the The first end surface of the blue filter 63 is attached to the second end surface of the lower polarizer 5, and the fourth end surface of the red filter 61 is attached to the third end surface of the green filter 62 ; The fourth end surface of the green filter 62 and the third end surface of the blue filter 63 are attached.

According to a preferred embodiment provided by the present application, the length of the lower polarizer 5 is smaller than the length of the upper polarizer 1, and the length of the upper substrate 2 is equal to the length of the lower substrate 7.

According to a preferred embodiment provided by the present application, a spacer 8 is further provided between the upper substrate 2 and the transparent layer 4, and the spacer 8 is used to support the upper substrate 2 and the upper polarizer. Piece 1.

According to a preferred embodiment provided by the present application, the lower polarizer 5 is a polarizer with a pattern. When making this kind of patterned polarizer, the pattern is first set on the polarizer, but due to the particularity of the polarizer, the pattern cannot be printed directly on the polarizer, so it needs to be printed on the silver-plated reflective film and then combined with the polarizer. The polarizers fit together. In this way, the polarizer has a pattern, and the polarizer with the pattern can be directly attached to the glass, which saves costs and greatly improves production efficiency.

According to a preferred embodiment provided by the present application, the aforementioned substrate may be a glass substrate, a quartz substrate or a resin substrate.

According to a preferred embodiment provided by the present application, the lower substrate 7 is thicker than the upper substrate 2 so as to withstand gravity.

The above describes in detail a liquid crystal display panel provided by the embodiments of the present application. Specific examples are used in this article to describe the principles and implementations of the present application. The descriptions of the above embodiments are only used to help understand the technology of the present application. The solution and its core idea; those of ordinary skill in the art should understand that: it is still possible to modify the technical solutions recorded in the foregoing embodiments, or equivalently replace some of the technical features; and these modifications or replacements do not make The essence of the corresponding technical solutions deviates from the scope of the technical solutions of the embodiments of the present application.

Claims

A liquid crystal display panel, which comprises: an upper substrate, a lower substrate, an upper polarizer, a lower polarizer, a liquid crystal layer, a color filter and a transparent layer; wherein,

The upper polarizer is arranged on the upper substrate and attached to the upper substrate;

The lower substrate is arranged directly opposite to the upper substrate;

The liquid crystal layer is disposed between the upper substrate and the lower substrate, the upper end surface of the liquid crystal layer is bonded to the upper substrate, and the lower end of the liquid crystal layer is bonded to the transparent layer;

The lower polarizer and the transparent layer are arranged between the lower substrate and the liquid crystal layer, wherein a thin film transistor, a color filter and a polarizer are not arranged in a partial area of the transparent layer; wherein, the upper The substrate and the lower substrate are glass substrates, quartz substrates or resin substrates.
The liquid crystal display panel of claim 1, wherein the transparent layer includes a first transparent area and a second transparent area.
3. The liquid crystal display panel of claim 2, wherein the second transparent region is not provided with thin film transistors, lower polarizers and color filters.
3. The liquid crystal display panel of claim 2, wherein the length of the second transparent area is less than the length of the first transparent area; the thickness of the second transparent area is greater than the thickness of the first transparent area and is equal to The thickness of the first transparent region plus the thickness of the lower polarizer plus the thickness of the color filter.
3. The liquid crystal display panel of claim 1, wherein the color filter comprises a red filter, a green filter, and a blue filter.
5. The liquid crystal display panel of claim 5, wherein the red filter, the green filter and the blue filter are completely the same in size, thickness and material.
The liquid crystal display panel according to claim 1, wherein the upper substrate, the lower substrate, the upper polarizer, the lower polarizer, the liquid crystal layer, the red filter, the green The filter, the blue filter, the first transparent area and the second transparent area all include a first end surface, a second end surface, a third end surface, and a fourth end surface.
7. The liquid crystal display panel of claim 7, wherein the fourth end surface of the first transparent region, the fourth end surface of the lower polarizer, the fourth end surface of the blue filter and the second The third end surface of the transparent area is attached, the second end surface of the first transparent area is attached to the first end surface of the lower polarizer, and the first end surface of the red filter and the green filter The first end surface, the first end surface of the blue filter and the second end surface of the lower polarizer are attached, and the fourth end surface of the red filter is attached to the third end surface of the green filter. ; The fourth end surface of the green filter is attached to the third end surface of the blue filter.
8. The liquid crystal display panel of claim 8, wherein the lower polarizer is a patterned polarizer.
9. The liquid crystal display panel according to claim 9, wherein, when the lower polarizer is manufactured, the pattern is printed on the silver-plated reflective film first, and then it is aligned with the polarizer.
8. The liquid crystal display panel of claim 8, wherein the length of the lower polarizer is less than the length of the upper polarizer, and the length of the upper substrate is equal to the length of the lower substrate.
8. The liquid crystal display panel of claim 8, wherein the lower substrate is thicker than the upper substrate.
The liquid crystal display panel of claim 1, wherein a spacer is further provided between the upper substrate and the transparent layer.
A liquid crystal display panel, which comprises: an upper substrate, a lower substrate, an upper polarizer, a lower polarizer, a liquid crystal layer, a color filter and a transparent layer; wherein,

The upper polarizer is arranged on the upper substrate and attached to the upper substrate;

The lower substrate is arranged directly opposite to the upper substrate;

The liquid crystal layer is disposed between the upper substrate and the lower substrate, the upper end surface of the liquid crystal layer is bonded to the upper substrate, and the lower end of the liquid crystal layer is bonded to the transparent layer;

The lower polarizer and the transparent layer are arranged between the lower substrate and the liquid crystal layer, wherein a thin film transistor, a color filter and a polarizer are not arranged in a partial area of the transparent layer.
15. The liquid crystal display panel of claim 14, wherein the transparent layer includes a first transparent area and a second transparent area.
15. The liquid crystal display panel of claim 15, wherein the second transparent area is not provided with thin film transistors, lower polarizers and color filters.
15. The liquid crystal display panel according to claim 15, wherein the length of the second transparent region is less than the length of the first transparent region; the thickness of the second transparent region is greater than the thickness of the first transparent region and is equal to The thickness of the first transparent region plus the thickness of the lower polarizer plus the thickness of the color filter.
14. The liquid crystal display panel according to claim 14, wherein the color filter comprises a red filter, a green filter and a blue filter.
14. The liquid crystal display panel of claim 14, wherein the lower polarizer is a patterned polarizer.
15. The liquid crystal display panel of claim 14, wherein a spacer is further provided between the upper substrate and the transparent layer.