Liquid crystal display panel and liquid crystal display apparatus

The present disclosure provides a liquid crystal display panel and a liquid crystal display apparatus. The liquid crystal display panel includes a first substrate including a plurality of protrusions, a second substrate including an active switch array and a color filter layer formed on the active switch array, and a liquid crystal layer formed between the first substrate and the second substrate.

TECHNICAL FIELD

The present disclosure relates to the technical field of displays, and particularly relates to a liquid crystal display panel using varying protrusions of a substrate to mismatch distances between photo spaces (PS) and the substrate, and a liquid crystal display apparatus.

BACKGROUND

Many different display apparatuses, such as liquid crystal display (LCD) apparatuses or electro-luminescence (EL) display apparatuses, are widely used in flat panel display apparatuses. In taking the LCD apparatuses as an example, most LCD apparatuses are backlit LCD apparatuses, each including a liquid crystal display panel and a backlight module. The liquid crystal display panel is composed of two transparent substrates and a liquid crystal enclosed between the substrates.

R/G/B color filters and photo spaces (PS) of existing upper-panel color filter are manufactured on one side of an array substrate. Distances between the photo spaces and a glass substrate are not easy to mismatch, causing images to easily form dark fringes during pressing. Therefore, cell quality is influenced and various traces are formed due to non-uniform brightness of the display apparatus.

SUMMARY

A technical problem to be solved by the present disclosure is to provide a liquid crystal display panel, to avoid formation of dark fringes in images. The liquid crystal display panel comprises:

a first substrate including a plurality of protrusions,

a second substrate comprising an active switch array and a color filter layer formed on the active switch array,

a liquid crystal layer formed between the first substrate and the second substrate, and

a plurality of photo spaces positioned between the first substrate and the second substrate, wherein portions of the photo spaces are positioned between the color filter layer and the protrusions of the first substrate, so as to support the first substrate and the second substrate.

In some embodiments, the first substrate further comprises a first glass substrate including protrusions that protrude inwards on the photo spaces corresponding to the protrusions of the first substrate.

In some embodiments, the plurality of photo spaces have a same length.

In some embodiments, the length of the plurality of photo spaces is less than a distance between the color filter layer and the protrusions of the first substrate.

In some embodiments, the first substrate comprises a glass substrate and the protrusions integrally formed on the glass substrate.

In some embodiments, the first substrate further includes a plurality of recesses, and the other photo spaces are positioned between the color filter layer and the recesses of the first substrate.

In some embodiments, the liquid crystal display apparatus comprises a backlight module and a liquid crystal display panel.

Mismatch may be formed among the plurality of photo spaces, to avoid influencing cell quality due to dark fringes in images formed during pressing, thereby enhancing display, realizing better display of the panel, enabling better viewing experiences for users, while simultaneously saving costs, and enhancing product competitiveness.

DETAILED DESCRIPTION

Specific structure and function details disclosed herein are only representative and are used for the purpose of describing exemplary embodiments of the present disclosure. However, the present disclosure may be specifically achieved in many alternative forms and shall not be interpreted to be only limited to the embodiments described herein.

It should be understood in the description of the present disclosure that terms such as “central”, “horizontal”, “upper”, “lower”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inner”, “outer”, etc. indicate direction or position relationships shown based on the drawings, and are only intended to facilitate the description of the present disclosure and the simplification of the description rather than to indicate or imply that the indicated apparatus or assembly must have a specific direction or constructed and operated in a specific direction, and therefore, shall not be understood as a limitation to the present disclosure. In addition, the terms such as “first” and “second” are only used for the purpose of description, rather than being understood to indicate or imply relative importance or hint the number of indicated technical features. Thus, the feature limited by “first” and “second” can explicitly or impliedly comprise one or more features. In the description of the present disclosure, the meaning of “a plurality of” is two or more unless otherwise specified. In addition, the term “comprise” and any variant are intended to cover non-exclusive inclusion.

It should be noted in the description of the present disclosure that, unless otherwise specifically regulated and defined, terms such as “installation”, “bonded” and “bonding” shall be understood in broad sense, and for example, may refer to fixed bonding or detachable bonding or integral bonding, may refer to mechanical bonding or electrical bonding, and may refer to direct bonding or indirect bonding through an intermediate medium or inner communication of two assemblies. For those of ordinary skill in the art, the meanings of the above terms in the present disclosure may be understood according to specific conditions.

The terms used herein are intended to merely describe specific embodiments, not to limit the exemplary embodiments. Unless otherwise noted clearly in the context, singular forms “one” and “single” used herein are also intended to comprise plurals. It should also be understood that the terms “comprise” and/or “include” used herein specify the existence of stated features, integers, steps, operation, units and/or assemblies, not excluding the existence or addition of one or more other features, integers, steps, operation, units, assemblies and/or combinations of these.

The present disclosure will be further described in detail below in combination with the drawings and preferred embodiments.

FIG. 1is a cross-sectional schematic diagram of a liquid crystal display panel of an embodiment of the present disclosure. The liquid crystal display apparatus comprise a liquid crystal display panel100and a backlight module (not shown). The liquid crystal display panel100is disposed relative to the backlight module. The backlight module may be a side lighting backlight module or a bottom lighting backlight module, to provide backlight to the liquid crystal display panel100. The liquid crystal display panel100may be a VA liquid crystal display panel.

As shown inFIG. 1, the liquid crystal display panel100comprise a first substrate110, a second substrate120, a liquid crystal layer130, a first polarizer140, a second polarizer150, and phase difference films160,170. The liquid crystal layer130is formed between the first substrate110and the second substrate120, i.e., the liquid crystal layer130is positioned on an inner side of the first substrate110and the second substrate120. The first polarizer140is disposed on an outer side of the first substrate110, and the second polarizer150is disposed on an outer side of the second substrate120. The phase difference film160is positioned between the first substrate110and the first polarizer140, and the phase difference film170is positioned between the second substrate120and the second polarizer150.

As shown inFIG. 1, the substrate materials of the first substrate110and the second substrate120may be glass substrates or flexible plastic substrates. It should be note that a color filter and an active switch array can be configured on the same substrate in the embodiment of the present disclosure.

The structural schematic diagram of the display panel of the embodiment of the present disclosure is described below with reference toFIG. 2toFIG. 5. The display panel comprises a first substrate and a second substrate. A plurality of photo spaces1for supporting the first substrate and the second substrate are positioned between the first substrate and the second substrate. The photo spaces1are spacedly arranged, and comprise at least two photo spaces, i.e., a first photo space and a second photo spaces that are mismatched. Distance between each of the photo spaces1and the substrate may be mismatched, to avoid influencing cell quality due to dark fringes in images formed during pressing, thereby enhancing display, realizing better display of the panel, enabling better viewing experiences for users, while simultaneously saving costs and enhancing product competitiveness.

In another embodiment of the present disclosure, the display panel further comprises a black matrix2. The black matrix2is positioned between the first substrate and the photo spaces1. Heights between the black matrix2and the corresponding photo spaces1are varied. Accordingly, distance between each of the photo spaces1and the substrate may be mismatched. Heights of the black matrix2are varied, to allow height between the black matrix and the corresponding photo spaces to be mismatched, thereby avoiding influencing cell quality due to dark fringes in images formed during pressing.

Specifically,FIG. 2shows a structural schematic diagram of the display panel of an embodiment of the present disclosure. Through use of a half tone mask, the height difference is formed between the black matrix2and the two adjacent photo spaces1corresponding to the black matrix2. Accordingly, there is a there is a mismatch in distance between each of the photo spaces1and the substrate. The two adjacent photo spaces1are mismatched in distance between them and the substrate, so that uniform arrangement of the mismatching is used to increase liquid crystal margins, effectively avoiding formation of dark fringes in images and ensuring display panel quality. Of course, in addition to the mismatching between the two adjacent photo spaces1and the substrate, mismatching can also exist between the photo spaces1, and distances in space may be uniform or, in other specific sequences, a difference value of the mismatching may be constant or variable.

The height difference is formed between the black matrix2and the two adjacent photo spaces1corresponding to the black matrix2through use of the half tone mask. By using the half tone mask, two exposure processes are combined into one working procedure, thereby saving one exposure process, shortening production cycle, increasing production efficiency, reducing production costs, and enhancing market competitiveness. Partial light transmission of a grating is used in the half tone mask, so that a color filter is not completely exposed. How many light rays of the light transmission is determined by a semi-permeable membrane portion according to the height difference of required passivation layers, and generally, the transmittance is about 35% of that of a normal portion.

As shown inFIG. 3, in another embodiment of the present disclosure, the first substrate further comprises a first glass substrate3, and the first glass substrate3includes protrusions31that protrude inwards on the first photo space or the second photo space corresponding to the protrusion of the first glass substrate. A height difference is formed between the two photo spaces by the protrusions31. Accordingly, the mismatching is formed between the two photo spaces. Structures of the protrusions31on the first glass substrate3are used, and the protrusions31are arranged simply to allow the corresponding photo spaces (PS)1to be mismatched, thereby avoiding influencing cell quality due to dark fringes in images formed during pressing. Of course, the first glass substrate3includes protrusions31that protrude inwards on the first photo space and the second photo space are corresponding to protrusion of the first glass substrate, but the protrusions31corresponding to the two photo spaces1have different heights.

Specifically, the height difference is formed between the protrusions31and the two adjacent photo spaces1corresponding to the protrusions31. Accordingly, there is a mismatch in distance between each of the photo spaces1and the substrate. The two adjacent photo spaces1are mismatched in distance between each of the photo spaces1and the substrate, such that uniform arrangement of the mismatching is thoroughly used for increasing liquid crystal margins, effectively avoiding formation of dark fringes in images and ensuring display panel quality. Of course, in addition to mismatching between the two adjacent photo spaces1and the substrate, mismatching can also exist between the photo spaces1, and distances in spacing may be uniform or may be in other specific sequences, wherein a difference value of the mismatching may be constant or variable.

Specifically,FIG. 3shows a structural schematic diagram of the display panel of an embodiment of the present disclosure. Height of one protrusion31in the two adjacent protrusions31is 0. The two adjacent photo spaces1correspondingly disposed on the first glass substrate3, and the inner side of first glass substrate3is provided with a protrusion31corresponding to the first photo space, and the inner side of first glass substrate is not provided with a protrusion31corresponding to the second photo space, to allow height between the first glass substrate and the corresponding photo spaces to be mismatched.

More specifically, the second substrate of the liquid crystal display panel comprises an active switch array and a color filter layer formed on the active switch array. The liquid crystal layer is formed between the first substrate and the second substrate. A plurality of photo spaces1are positioned between the first substrate and the second substrate, wherein portions of the photo spaces1are positioned between the color filter layer and the protrusions31of the first substrate, so as to support the first substrate and the second substrate. Other photo spaces1are positioned between the color filter layer and the protrusions31of the first substrate, thereby forming the mismatch between the photo spaces1.

In some embodiments, the plurality of photo spaces1may have the same length, while the protrusions31are used for creating the mismatch. Therefore, the photo spaces1can be formed without the use of a special mask (e.g., half tone mask), thereby reducing costs.

In some embodiments, length of the plurality of photo spaces is slightly less than a distance between the color filter layer and the protrusions of the first substrate. Therefore, portions of the photo spaces1can be supported between the color filter layer and the protrusions of the first substrate.

In some embodiments, the first substrate comprises a glass substrate and the protrusions integrally formed on the glass substrate.

In another embodiment of the present disclosure, the second substrate further comprises a second glass substrate4and a color filter layer. The color filter layer is positioned between the second glass substrate4and the photo spaces1. A height difference is formed between the color filter layer the two photo spaces1corresponding to the color filter layer. Accordingly, distance between each of the photo spaces1and the substrate may be mismatched. Heights of the color filter are varied. The photo spaces (PS)1are manufactured on the color filter. After the photo spaces (PS)1are formed, the mismatch is formed by using the topographic advantages, thereby avoiding influencing cell quality due to dark fringes in images formed during pressing.

Specifically, the height difference is formed between the color filter layer and the two adjacent photo spaces1corresponding to the color filter layer. Accordingly, there is a mismatch in distance between each of the photo spaces1and the substrate. There is a mismatch in distance between each of the photo spaces1and the substrate, so that uniform arrangement of the mismatch is thoroughly used for increasing a liquid crystal margin, effectively avoiding formation of the dark fringes in the images and ensuring the display panel quality. Of course, in addition to mismatching between the two adjacent photo spaces1and the substrate, mismatching can also exist between the photo spaces1, and spaced distances may be uniform or may be in other specific sequences, wherein a difference value of the mismatch may be constant or variable.

Specifically,FIG. 4shows a structural schematic diagram of the display panel of an embodiment of the present disclosure. The color filter layer comprises an R color filter51, G color filter52, and a B color filter two adjacent G color filter52form the height difference through use of the half tone mask. Accordingly, the mismatch is formed between the photo spaces1disposed on the G color filter52and the B color filter53, to effectively solve the problem of dark fringes images.

Specifically, the height difference is formed between the color filter layer and the two adjacent photo spaces1corresponding to the color filter through the half tone mask. By using the half tone mask, two exposure processes are combined into one working procedure, thereby saving one exposure process, shortening production cycle, increasing production efficiency, reducing production costs, and enhancing market competitiveness. Portion of light transmission of a grating is used in the half tone mask, so that a color filter is not completely exposed. The light transmission quantity of light rays is determined by a semi-permeable membrane portion according to the height difference of required passivation layers, and generally, the transmittance is about 35% of that of a normal portion.

In another embodiment of the present disclosure, the second substrate further comprises a second glass substrate4and a color filter layer. The color filter layer is positioned between the second glass substrate4and the photo spaces1. A protective layer7is positioned between the color filter layer and the photo spaces1. A height difference is formed between the protective layer7and the two photo spaces1corresponding to the protective layer7. Accordingly, distance between each of the photo spaces1and the substrate may be mismatched. The protective layers7under the photo spaces (PS)1have different heights. The photo spaces (PS)1are manufactured on the protective layer7. After the photo spaces (PS)1are formed, mismatch is formed by using topographic advantages, thereby avoiding influencing cell quality due to dark fringes in images formed during pressing.

Specifically, the height difference is formed between the protective layer7and the two photo spaces1corresponding to the protective layer7. Accordingly, there is a mismatch in distance between each of the photo spaces1and the substrate. There is a mismatch in distance between each of the photo spaces1and the substrate, so that uniform arrangement of the mismatch is thoroughly used to increase liquid crystal margins, effectively avoiding formation of dark fringes in images and ensuring display panel quality. Of course, in addition to mismatching between the two adjacent photo spaces1and the substrate, mismatching can also exist between the photo spaces1, and spaced distances may be uniform or may be in other specific sequences, wherein a difference value of the mismatch may be constant or variable.

Specifically, inner side surfaces of the color filter layers corresponding to the photo spaces1have the same height. A conducting layer is positioned between the first photo space and the color filter layer corresponding to the first photo space. The conducting layer and the protective layer are positioned between the second photo space and the color filter layer corresponding to the second photo space. The protective layer7under the corresponding photo space (PS)1is directly removed to mismatch, which is simple in step. Wherein thin film transistors6are also disposed on the second substrate, and the first photo space and the second photo space are respectively arranged above the two adjacent thin film transistors6. The thin film transistors6are compositions formed by stacking a plurality of polygons as shown in the figure, and the conducting layer8is connected to drains of the thin film transistors6, wherein the color filter layers corresponding to the two photo spaces1have different colors.

Specifically, besides that the protective layer7corresponding to the photo spaces can only be removed to mismatch the photo spaces1, the mismatching can also be formed more adequately in such a manner that the color filter is processed through use of the half tone mask to form the height difference.FIG. 5shows a structural schematic diagram of the display panel of an embodiment of the present disclosure. The color filter layer comprises an R color filter51, G color filter52, and a B color filter. Two adjacent G color filter52form the height difference through use of the half tone mask. Meanwhile, the protective layer7under one G color filter52is removed. Accordingly, the photo spaces1disposed on the G color filter52and the B color filter53are mismatched, to effectively solve the problem of dark fringes in images.

In another embodiment of the present disclosure, contact surfaces of the first substrate the first photo space and the second photo space with the first substrate have differences in height. Contact surfaces of the first photo space and the second photo space with the second substrate have differences in height and, accordingly, distance between each of the photo spaces1and the substrate may be mismatched. The mismatching is formed in both of two substrate directions, and the mismatching can be increased for the convenience of successfully making the entire display panel, thereby avoiding influencing display of the display panel due to a limited mismatch value.

Specifically,FIG. 6shows a structural schematic diagram of the display panel of an embodiment of the present disclosure. The first glass substrate3forms the protrusion31corresponding to one photo space1, and the second glass substrate4forms the protrusion31corresponding to the other photo space1, so that the two photo spaces1are mismatched with a greater difference value. Of course, in addition to the manner that the glass substrate includes the protrusions31that protrude inward on the photo spaces corresponding to the protrusions of the glass substrate, other manners can also be adopted, and the manners adopted at one side of the first substrate and at one side of the second substrate may be also different.

FIG. 7shows a structural schematic diagram of the first substrate of an embodiment of the present disclosure. In some embodiments, the first substrate3further includes a plurality of recesses32, and the other portions of the photo spaces1are positioned between the color filter layer and the recesses32of the first substrate, to form a mismatch with a greater difference value between the photo spaces1.

A photo-initiator in each photo space1is same. The same photo-initiator is arranged in different photo spaces1. Irradiated by light rays of different wavelengths, the different photo spaces1produce different degrees of crosslinking reactions, thereby mismatching of different photo spaces1. The light rays of different wavelengths are adopted for irradiating the same photo-initiator and the photo spaces1. The different photo spaces1are controlled to produce the crosslinking reactions of different degrees under the effect of the light rays of different wavelengths, to further control shrinkage of the different photo spaces1. Control effect is good, so that the mismatching between the different photo spaces1achieves a preset need. In addition, for such configuration on a production technology, the different photo spaces1are not required to be configured differently, and configuration is simple.

Specifically, the black matrix2and the second photo space are configured to have the same height, the first photo space is higher than the second photo space, and the second photo space is positioned between the first photo space and the black matrix2. It is better for the first photo space to be configured to be higher than the second photo space and the black matrix2, the second photo space is configured to have an equal height to the black matrix2, and the heights of the first photo space, the second photo space and the black matrix2are controlled, i.e., control effect for the mismatching is better, so that the display of the display panel is better.

A mismatch value between the first photo space and the second photo space is greater than or equal to 0.5 um. Specifically, height difference between the height H1of the first photo space and the height H2of the second photo space is greater than or equal to 0.5 um. When the mismatch value between the first photo space and the second photo space is less than 0.5 um, there is a large display influence on the display panel, and other manufacturing processes are influenced, such that difficulty of the entire display panel is increased. Shrinkage among the different photo spaces is controlled under coordination of the light rays of different wavelengths and the photo-initiator, to control mismatching between the first photo space and the second photo space to be greater than or equal to 0.5 um, thereby facilitating successful manufacturing of the entire display panel and avoiding influencing display of the display panel due to a limited mismatch value.

According to another aspect of the present disclosure, the present disclosure further discloses a display apparatus comprising the backlight module and the above display panel.

In still another embodiment of the present disclosure, the present embodiment discloses the backlight module and the display panel of the display apparatus. SeeFIG. 1toFIG. 4for specific structures and bonding relationships of the display panel, which will not be described in detail herein.

The above contents are further detailed descriptions of the present disclosure in combination with specific preferred embodiments. However, the specific implementation of the present disclosure shall not be considered to be only limited to these descriptions. For those ordinary skilled in the art to which the present disclosure belongs, several simple deductions or replacements may be made without departing from the conception of the present disclosure, all of which shall be considered to belong to the protection scope of the present disclosure.