The present disclosure relates to a liquid crystal display panel and a manufacturing method thereof, and in particular, to a liquid crystal display panel for avoiding formation of an electrode on a photo spacer (PS), and a manufacturing method thereof.
In recent years, as science technologies develop, many different display devices such as liquid crystal displays (LCD) or electro luminenscence (EL) display devices have been widely applied to flat panel displays. Taking liquid crystal displays as an example, most liquid crystal displays are backlight type liquid crystal displays. The backlight type liquid crystal display includes a liquid crystal display panel and a backlight module. The liquid crystal display panel includes two transparent substrates and a liquid crystal sealed between the two substrates.
As the science technologies develop, liquid crystal displays having many advantages such as power saving, no radiation, a small volume, low power consumption, a flat square, high resolution, and stable image quality, especially current various information products such as mobile phones, notebook computers, digital cameras, PDAs, and liquid crystal screens are becoming popular, greatly increasing a demand quantity of LCDs. Therefore, how to promote process efficiency and simplify a process flow is a management problem that managers need to face with.
For manufacturing of a four-color color filters (CFs) of a conventional liquid crystal display panel, regardless of a general standard process of color filters or a process of color filters on array (COA), manufacturing of a photo spacer is required after a red/green/blue/white color resist is manufactured. A function of the photo spacer is to support an LCD cell gap. Consequently, more materials are used, management is difficult, a manufacturing process is complex, and device investment is higher.
In addition, to avoid formation of an electrode on the photo spacer, a color filter indium tin oxide mask (CF ITO mask) process is generally required, prolonging a manufacturing time and increasing investment on yellow light equipment.
Objectives of the present disclosure is to provide a liquid crystal display panel and a manufacturing method thereof, so as to avoid a short circuit caused by formation of an electrode on a photo spacer.
One of the objectives of the present disclosure is to provide a liquid crystal display panel. The liquid crystal display panel includes:
In an embodiment of the present disclosure, the first substrate further comprises a plurality of active switches, and the first electrode is formed on the plurality of active switches.
In an embodiment of the present disclosure, the angle between the photo spacers and the second electrode is less than 90 degrees.
In an embodiment of the present disclosure, at least some of the photo spacers on the color filters are inverted trapezoidal.
In an embodiment of the present disclosure, the angle between the photo spacers and the second electrode is equal to 90 degrees.
In an embodiment of the present disclosure, the photo spacers on the color filters are long rectangular.
In an embodiment of the present disclosure, the second substrate further comprises a plurality of active switches, and the color filters are formed on the plurality of active switches.
One of the objectives of the present disclosure is to provide a liquid crystal display panel manufacturing method. The manufacturing method includes:
In an embodiment of the present disclosure, when the photo spacers are formed, the photo spacers are excessively etched, so that the angle between the photo spacers and the second electrode is equal to or less than 90 degrees.
One of the objectives of the present disclosure is to provide a liquid crystal display panel, including:
Another objective of the present disclosure is to provide a liquid crystal display panel manufacturing method, including: providing a second substrate, where color filters are formed on a second base, a plurality of photo spacers is formed on the second base, the color filters including a plurality of photoresist layers such as a first-color photoresist layer to a fourth-color photoresist layer disposed in parallel, and a material of one of the first-color photoresist layer to the fourth-color photoresist layer being the same as a material of the photo spacers, and a second electrode is formed on the color filters, thereby implementing the second substrate; providing a first substrate oppositely disposed with respect to the second substrate, where the photo spacers are located between the first substrate and the second substrate, and are configured to define a liquid crystal compartment and fill the liquid crystal compartment; and forming a liquid crystal layer between the first substrate and the second substrate. In addition, when the color filters are manufactured, a white pixel material is replaced with a new material of the photo spacers by adjusting a brightness sensitive degree, a penetration ratio, and chromaticity of the material of the photo spacers. Therefore, when a white pixel is fabricated, manufacturing of the photo spacers is completed, and a required level difference of the photo spacers is reserved.
Still another objective of the present disclosure is to provide a liquid crystal display panel manufacturing method, including: providing a first substrate, where color filters are formed on a first base, a plurality of photo spacers is formed on the first base, the color filters including a plurality of photoresist layers such as a first-color photoresist layer to a fourth-color photoresist layer disposed in parallel, and a material of one of the first-color photoresist layer to the fourth-color photoresist layer being the same as a material of the photo spacers, a first insulation layer is formed on the color filters, and a first electrode is formed on the first insulation layer, thereby implementing the first substrate; providing a second substrate oppositely disposed with respect to the first substrate, where the photo spacers are located between the first substrate and the second substrate, and are configured to define a liquid crystal compartment and fill the liquid crystal compartment; and forming a liquid crystal layer between the first substrate and the second substrate. In addition, when color filters on array is manufactured, a white pixel material is replaced with a new material of the photo spacers by adjusting a brightness sensitive degree, a penetration ratio, and chromaticity of the material of the photo spacers. Therefore, when a white pixel is fabricated, manufacturing of the photo spacers is completed, and a required level difference of the photo spacers is reserved.
The technical problems of the present disclosure may be further resolved by using the following technical measures.
In an embodiment of the present disclosure, the second substrate includes a second base, color filters located on the second base, and a second electrode located on the color filters.
In an embodiment of the present disclosure, the second substrate further includes a light shield layer located approximately right above the photo spacers.
In an embodiment of the present disclosure, the second substrate further includes an adjustment layer being in contact with the photo spacers.
In an embodiment of the present disclosure, the first substrate includes the first base, the color filters located on the first base, the first insulation layer located on the color filters, and the first electrode located on the first insulation layer.
In an embodiment of the present disclosure, the manufacturing method further includes: when color filters are manufactured, replacing a white pixel material with a new material of the photo spacers by adjusting a brightness sensitive degree, a penetration ratio, and chromaticity of the material of the photo spacers. Therefore, when a white pixel is fabricated, manufacturing of the photo spacers is completed, and a required level difference of the photo spacers is reserved.
In an embodiment of the present disclosure, the manufacturing method further includes: when color filters on array is manufactured, replacing a white pixel material with a new material of the photo spacers by adjusting a brightness sensitive degree, a penetration ratio, and chromaticity of the material of the photo spacers. Therefore, when a white pixel is fabricated, manufacturing of the photo spacers is completed, and a required level difference of the photo spacers is reserved.
In the present disclosure, the photo spacers are inverted trapezoidal (having an undercut) or resemble a shape of 90 degrees, to enable indium tin oxide (ITO) to be discontinuous at positions of the photo spacers and to be broken naturally. In this way, a CF ITO mask process is not required, shortening a manufacturing time and reducing investment on yellow light equipment.
The following embodiments are described with reference to the accompanying drawings, which are used to exemplify specific embodiments for implementation of the present disclosure. Terms about directions mentioned in the present disclosure, such as “on”, “below”, “front”, “back”, “left”, “right”, “in”, “out”, and “side surface” merely refer to directions of the accompanying drawings. Therefore, the used terms about directions are used to describe and understand the present disclosure, and are not intended to limit the present disclosure.
The accompanying drawings and the description are considered to be essentially exemplary, rather than limitative. In figures, units with similar structures are represented by using a same reference number. In addition, for understanding and ease of description, a size and a thickness of each component shown in the accompanying drawings are arbitrarily shown, but the present disclosure is not limited thereto.
In the accompanying drawings, for clarity, thicknesses of a layer, a film, a panel, an area, and the like are enlarged. In the accompanying drawings, for understanding and ease of description, thicknesses of some layers and areas are enlarged. It should be understood that when a component such as a layer, a film, an area, or a substrate is described to be “on” “another component”, the component may be directly on the another component, or there may be an intermediate component.
In addition, in this specification, unless otherwise explicitly described to have an opposite meaning, the word “include” is understood as including the component, but not excluding any other component. In addition, in this specification, “on” means that a component is located on or below a target component, but does not mean that the component needs to be located on top of a gravity direction.
To further describe the technical means adopted in the present disclosure to achieve the preset invention objective and effects thereof, specific implementations, structures, features, and effects of a liquid crystal display panel and a manufacturing method thereof provided according to the present disclosure are described in detail below with reference to the drawings and preferred embodiments.
The liquid crystal display panel in the present disclosure may include a first substrate, a second substrate, and a liquid crystal layer formed between the two substrates. The first substrate and the second substrate may be, for example, an active switch array substrate and color filters substrate, but are not limited thereto. In an embodiment, an active switch (for example, a thin film transistor (TFT)) and color filters may also be formed on a same substrate.
In an embodiment, the liquid crystal display panel in the present disclosure may be a curved display panel.
The liquid crystal display panel in the present disclosure may be disposed on a backlight module, to form a liquid crystal display apparatus.
In some embodiments, the backlight module is, for example, an edge backlight module, and is disposed opposite to the liquid crystal display panel, to form the liquid crystal display apparatus. The backlight module may include a backplane, a light source, a light guide plate, a reflection layer, and an optical membrane. The backplane is configured to fix the light source, the light guide plate, the reflection layer, and the optical membrane. The light source is disposed on a side of the light guide plate, and is configured to emit lateral light to the light guide plate. The light guide plate guides the light to the outside. The reflection layer is disposed between the backplane and the light guide plate, and is configured to reflect the light from the light source. The optical membrane is disposed on the light guide plate, to improve an optical effect.
In some embodiments, the light source may be, for example, a cold cathode fluorescent lamp (CCFL), a hot cathode fluorescent lamp (HCFL), a light-emitting diode (LED), an organic light emitting diode (OLED), a flat fluorescent lamp (FFL), an electro-luminescence (EL) component, a light bar (Light Bar), a laser source, or any combination thereof.
In some embodiments, the optical membrane of the backlight module is, for example, a diffusion sheet, a prism sheet, a turning prism sheet (Turning Prism Sheet), a brightness enhancement film (BEF), a dual brightness enhancement film (DBEF), a diffused reflective polarizer film (DRPF), or any combination thereof, and is disposed on the light guide plate to improve an optical effect of light from the light guide plate.
Still referring to
In some embodiments, a material of the photo spacers 300 may be the same as a material of a white photoresist layer of the color filters 202.
In an embodiment, for example, a plurality of photoresist layers of the color filters 202 may also be photoresist layers in yellow or another color.
In some embodiments, an angle between the photo spacers 300 and the second electrode 204 may be equal to or less than 90 degrees, to avoid formation of the second electrode 204 on the photo spacers 300, thereby avoiding a short circuit between the second electrode 204 and the first electrode 106 on the photo spacers 300.
In some embodiments, the liquid crystal display panel in the present disclosure includes: a first substrate, comprising a first electrode; a second substrate, oppositely disposed with respect to the first substrate, where the second substrate comprises a second electrode and color filters, and the second electrode is formed on the color filters; a plurality of photo spacers, located between the first substrate and the second substrate, and disposed on the color filters, where an angle between the photo spacers and the second electrode is equal to or less than 90 degrees; and a liquid crystal layer, formed between the first substrate and the second substrate.
In an embodiment of the present disclosure, the first substrate 10 further includes a plurality of active switches, and the first electrode 106 may be formed on the plurality of active switches.
In an embodiment of the present disclosure, the second substrate 20 further includes a plurality of active switches, and the color filters 202 may be formed on the plurality of active switches.
In an embodiment of the present disclosure, as shown in
In some embodiments, a liquid crystal display panel in the present disclosure includes: a first substrate, including a first electrode; a second substrate, oppositely disposed with respect to the first substrate, where the second substrate includes a second electrode and color filters, and the second electrode is formed on the color filters; a plurality of photo spacers, located between the first substrate and the second substrate, and disposed on the color filters, where an angle between the photo spacers and the second electrode is equal to or less than 90 degrees; and a liquid crystal layer, formed between the first substrate and the second substrate.
In an embodiment of the present disclosure, the first substrate 10 further includes a plurality of active switches, and the first electrode 106 may be formed on the plurality of active switches.
In an embodiment of the present disclosure, the second substrate 20 further includes a plurality of active switches, and the color filters 202 may be formed on the plurality of active switches.
In an embodiment of the present disclosure, as shown in
In an embodiment of the present disclosure, a liquid crystal display panel manufacturing method according to the present disclosure includes: providing a second substrate 20, where color filters 202 are formed on a second base 200, a plurality of photo spacers 300 are formed on the second base 200, the color filters 202 including a plurality of photoresist layers such as a first-color photoresist layer to a fourth-color photoresist layer disposed in parallel, and a material of one of the first-color photoresist layer to the fourth-color photoresist layer being the same as a material of the photo spacers 300, and a second electrode 204 is formed on the color filters 202, thereby implementing the second substrate 20; providing a first substrate 10 oppositely disposed with respect to the second substrate 20, where the photo spacers 300 are located between the first substrate 10 and the second substrate 20 and are configured to define a liquid crystal compartment and fill the liquid crystal compartment; and forming a liquid crystal layer 30 between the first substrate 10 and the second substrate 20. In addition, when the color filters 202 is manufactured, a white pixel material is replaced with a new material of the photo spacers 300 by adjusting a brightness sensitive degree, a penetration ratio, and chromaticity of the material of the photo spacers 300. Therefore, when a white pixel is fabricated, manufacturing of the photo spacers 300 is completed, and a required level difference of the photo spacers 300 is reserved. An advantage is reducing a process of the photo spacers 300.
In some embodiments of the present disclosure, the liquid crystal display panel manufacturing method according to the present disclosure may include:
In an embodiment of the present disclosure, when the photo spacers 300 are formed, the photo spacers 300 may be excessively etched, so that the angle between the photo spacers 300 and the second electrode is equal to or less than 90 degrees.
In an embodiment of the present disclosure, a liquid crystal display panel manufacturing method according to the present disclosure includes: providing a first substrate 10, where color filters 202 is formed on a first base 100, a plurality of photo spacers 300 is formed on the first base 100, the color filters 202 including a plurality of photoresist layers such as a first-color photoresist layer, a second-color photoresist layer, a third-color photoresist layer, a fourth-color photoresist layer disposed in parallel, and a material of one of the first-color photoresist layer to the fourth-color photoresist layer being the same as a material of the photo spacers 300, for example, in some embodiments, the color filters 202 including red, green, blue, and white photoresist layers; next, a first insulation layer 102 is formed on the color filters 202, and a first electrode 106 is formed on the first insulation layer 102, thereby implementing the first substrate 10; providing a second substrate 20 oppositely disposed with respect to the first substrate, where the photo spacers 300 are located between the first substrate 10 and the second substrate 20, and are configured to define a liquid crystal compartment and fill the liquid crystal compartment; and forming a liquid crystal layer 30 between the first substrate 10 and the second substrate 20. In addition, when color filters 202 on array is manufactured, a white pixel material is replaced with a new material of the photo spacers 300 by adjusting a brightness sensitive degree, a penetration ratio, and chromaticity of the material of the photo spacers 300. Therefore, when a white pixel is fabricated, manufacturing of the photo spacers 300 is completed, and a required level difference of the photo spacers 300 is reserved. An advantage is reducing a process of the photo spacers 300.
In some embodiments of the present disclosure, as shown in
In an embodiment of the present disclosure, when the photo spacers 300 are formed (patterned), parts connecting the photo spacers 300 to the color filters 202 may be excessively etched (dry-etched or wet-etched), so that the angle between the photo spacers 300 and the second electrode is equal to or less than 90 degrees, thereby avoiding formation of the second electrode 204 on the photo spacers 300.
The present disclosure reduces problems during manufacturing and production, requires only one single material, and can shorten the production time and reduce equipment investment. Moreover, the angle between the photo spacers 300 and the second electrode 204 on the color filters 202 may be equal to or less than 90 degrees, to avoid formation of the second electrode 204 on the photo spacers 300, thereby avoiding a short circuit between the second electrode 204 and the first electrode 106 on the photo spacers 300.
Terms such as “in some embodiments” and “in various embodiments” are repeatedly used. Usually, the terms do not refer to a same embodiment; but they may also refer to a same embodiment. Words such as “comprise”, “have”, “include” are synonyms, unless other meanings are indicated in the context.
The foregoing descriptions are merely preferred embodiments of the present disclosure, and are not intended to limit the present disclosure in any form. Although the present disclosure has been disclosed above through the preferred embodiments, the embodiments are not intended to limit the present disclosure. Any person skilled in the art can make some equivalent variations or modifications according to the foregoing disclosed technical content without departing from the scope of the technical solutions of the present disclosure to obtain equivalent embodiments. Any simple amendment, equivalent change or modification made to the foregoing embodiments according to the technical essence of the present disclosure without departing from the content of the technical solutions of the present disclosure shall fall within the scope of the technical solutions of the present disclosure.
Number | Date | Country | Kind |
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201611246423.7 | Dec 2016 | CN | national |
Filing Document | Filing Date | Country | Kind |
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PCT/CN2017/080551 | 4/14/2017 | WO | 00 |