CN113805391A - Array substrate, liquid crystal display panel and display device - Google Patents

Abstract

The array substrate comprises a first substrate and a pixel unit defined by crossing a grid line and a data line, wherein the pixel unit comprises a pixel electrode, a public electrode and a thin film transistor connected with the grid line, the pixel unit has multiple types, including a green pixel unit, and a gap exists between the orthographic projection of the public electrode on the first substrate and the orthographic projection of the grid line on the first substrate; the width of the gap of the green pixel unit is the smallest among the plurality of pixel units. The liquid crystal display panel solves the problem that the poor light leakage of the picture can occur when the existing liquid crystal display panel is pressed by large pressure.

Description

Array substrate, liquid crystal display panel and display device

Technical Field

The present disclosure relates to display technologies, and particularly to an array substrate, a liquid crystal display panel and a display device.

Background

The liquid crystal panel comprises a color film substrate and an array substrate, wherein a plurality of common electrodes are arranged in the array substrate, the common electrodes correspond to pixel units one by one, each pixel unit is correspondingly connected with a grid line, and the common electrodes are parallel to the grid lines. An interval area is arranged between one common electrode and one grid line corresponding to each pixel unit, the interval area can transmit light, but the interval area is usually shielded by a Black Matrix (BM) on a color film substrate, so that the liquid crystal panel can not leak light during displaying.

When the panel is carried or pressed by a large pressure, the color film substrate (CF) can shift relative to the array substrate (TFT), and experiments prove that in a Tri-Gate (three-dimensional transistor) designed liquid crystal display panel, because the Gate lines (Gate lines) and the common electrodes (com) extend along the long side direction of the pixels, after the color film substrate (CF) shifts relative to the array substrate (TFT) along the short side direction of the pixels, the Black Matrix (BM) can not shield the interval area between the Gate lines (Gate lines) and the common electrodes (com), thereby causing poor picture on a macroscopic scale.

Disclosure of Invention

The embodiment of the application provides an array substrate, a liquid crystal display panel and a display device, and through in with multiple pixel units, the gap width between the orthographic projection of the common electrode in the green pixel unit on a first substrate base plate and the orthographic projection of the grid line on the first substrate base plate sets up to minimum to solve the problem that the poor light leakage of picture can appear when current liquid crystal display panel is pressed by great pressure.

In order to achieve the purpose, the technical scheme adopted by the application is as follows: providing an array substrate, which comprises a first substrate and a pixel unit defined by a grid line and a data line in a crossed manner, wherein the pixel unit comprises a pixel electrode, a common electrode and a thin film transistor connected with the grid line, the pixel unit comprises a plurality of types of green pixel units, and a gap exists between the orthographic projection of the common electrode on the first substrate and the orthographic projection of the grid line on the first substrate; the width of the gap of the green pixel unit is the smallest among the plurality of pixel units.

According to the array substrate provided by the embodiment of the application, in various pixel units, the gap width between the orthographic projection of the public electrode in the green pixel unit on the first substrate and the orthographic projection of the grid line on the first substrate is set to be minimum, so that the light leakage range between the public electrode in the green pixel unit and the grid line is minimum when the liquid crystal panel is pressed by large pressure, the deflection amplitude of liquid crystal corresponding to the region between the public electrode in the green pixel unit and the grid line is minimum, the light leakage degree is minimum, and human eyes are most sensitive to green, so that the phenomenon of light leakage can be obviously improved when the human eyes observe the liquid crystal.

Optionally, the plurality of pixel units further include a red pixel unit and a blue pixel unit;

the width of the gap of the green pixel cell isd 1;

the width of the gap of the red pixel cell isd 2;

the width of the gap of the blue pixel cell isd 3;

wherein d1< d2 and d1<d 3.

Alternatively, d2<d 3.

Alternatively, d2 ═d 3.

Optionally, d3 is less than or equal to 6 μm.

Optionally, the array substrate further includes a light-shielding layer;

the gap is located in the orthographic projection of the light shielding layer on the first substrate.

Optionally, the width of the light-shielding layer in a direction perpendicular to the gate line is greater than the width of the gap.

Optionally, the common electrode and the gate line are disposed on the same layer.

The application provides an array substrate's beneficial effect lies in: in the multiple pixel units in the application, the gap width between the orthographic projection of the public electrode of the green pixel unit on the first substrate and the orthographic projection of the grid line on the first substrate is minimum, so that when the liquid crystal panel is pressed by large pressure, the light leakage range between the public electrode and the grid line in the green pixel unit is minimum, the influence of an electric field between the grid line and the public electrode in the green pixel unit on the deflection amplitude of the liquid crystal is also minimum, and human eyes are most sensitive to green, so that the phenomenon that human eyes can obviously feel light leakage when observing is improved.

The embodiment of the application also provides a liquid crystal display panel, which comprises the array substrate of any one of the embodiments;

the color film substrate is arranged in a box-to-box mode with the array substrate;

and the liquid crystal layer is arranged between the color film substrate and the array substrate.

The application provides a liquid crystal display panel's beneficial effect lies in: by adopting the array substrate, in the various pixel units in the application, the gap width between the orthographic projection of the public electrode of the green pixel unit on the first substrate and the orthographic projection of the grid line on the first substrate is minimum, so that when the liquid crystal panel is pressed by large pressure, the light leakage range between the public electrode and the grid line in the green pixel unit is minimum, the influence of an electric field between the grid line and the public electrode in the green pixel unit on the deflection amplitude of the liquid crystal is minimum, and the human eye is most sensitive to green, so that the phenomenon of light leakage can be obviously sensed and improved when the human eye observes.

The embodiment of the application also provides a display device, which comprises the liquid crystal display panel and a backlight module arranged on one side of the liquid crystal display panel.

The application provides a display device's beneficial effect lies in: by adopting the liquid crystal display panel, in the various pixel units in the application, the gap width between the orthographic projection of the public electrode of the green pixel unit on the first substrate and the orthographic projection of the grid line on the first substrate is minimum, so that when the liquid crystal panel is pressed by large pressure, the light leakage range between the public electrode and the grid line in the green pixel unit is minimum, the influence of an electric field between the grid line and the public electrode in the green pixel unit on the deflection amplitude of the liquid crystal is minimum, and the influence of human eyes on green is the most sensitive, so that the phenomenon that human eyes can obviously feel light leakage when observing is improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

Fig. 1 is a schematic structural diagram of an array substrate according to an embodiment of the present application.

Fig. 2 is a schematic structural diagram of an array substrate according to a second embodiment of the present application.

Fig. 3 is a schematic distance diagram between a common electrode and a gate line in different pixel units in an array substrate according to the second embodiment of the present application.

Fig. 4 is a top view of an array substrate according to a second embodiment of the present application.

Fig. 5 is a schematic structural diagram of an array substrate according to a third embodiment of the present application.

Fig. 6 is a schematic structural diagram of a liquid crystal display panel according to a fourth embodiment of the present application.

Fig. 7 is a schematic light leakage diagram of a liquid crystal display panel according to a fourth embodiment of the present application.

Fig. 8 is a schematic structural diagram of a display device according to a fifth embodiment of the present application.

Wherein, in the figures, the respective reference numerals:

1. an array substrate; 10. a first substrate base plate; 11. a red pixel unit; 12. a green pixel unit; 13. a blue pixel unit; 111. a red pixel electrode; 121. a green pixel electrode; 131. a blue pixel electrode;

2. a color film substrate; 20. a second substrate base plate; 21. a black matrix layer;

3. a gate line;

4. a common electrode; 7. a data line; 8. a light-shielding layer;

5. a liquid crystal layer;

6. a backlight module; 61. a light guide plate; 62. a light source assembly; 63. an optical film.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings that is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically defined otherwise.

The embodiment of the application provides an array substrate, a liquid crystal display panel and a display device, and solves the problem that poor picture light leakage occurs when an existing liquid crystal panel is pressed by large pressure.

Example one

Referring to fig. 1, anarray substrate 1 provided in an embodiment of the present application includes afirst substrate 10 and a pixel unit defined by agate line 3 and adata line 7 crossing each other;

the pixel units comprise pixel electrodes, acommon electrode 4 and thin film transistors connected with thegrid lines 3, the pixel units comprise a plurality of types, includinggreen pixel units 12, a gap exists between the orthographic projection of thecommon electrode 4 on thefirst substrate 10 and the orthographic projection of thegrid lines 3 on thefirst substrate 10, and the width of the gap of thegreen pixel units 12 is the smallest in the pixel units.

With thearray substrate 1 provided in the embodiment of the present application, in a plurality of pixel units, a gap between an orthogonal projection of thecommon electrode 4 in thegreen pixel unit 12 on thefirst substrate 10 and an orthogonal projection of thegate line 3 on thefirst substrate 10 is set to be minimum, so that when the liquid crystal panel is pressed by a large pressure, a light leakage range between thecommon electrode 4 and thegate line 3 in thegreen pixel unit 12 is minimum, and a deflection amplitude of a liquid crystal corresponding to an area between thecommon electrode 4 and thegate line 3 in thegreen pixel unit 12 is minimum, and a light leakage degree is minimum.

It should be noted that, after the display screen is pressed by a large force, the black matrix on the side of thecolor film substrate 2 is shifted, and a gap between an orthographic projection of thecommon electrode 4 in the pixel unit on thefirst substrate 10 and an orthographic projection of thegate line 3 on thefirst substrate 10 is exposed in an area originally covered by the black matrix, so that light can be transmitted through the area, and a light leakage phenomenon can occur when the pixel unit is in a completely black image, or the luminance of a part of the area is brighter when the pixel unit displays, which can affect the normal display of the display panel and affect the image quality.

It should be noted that, in the embodiment of the present application, the voltage signals loaded on thecommon electrode 4 and the transparent electrode on thecolor filter substrate 2 side are the same, so that the potential difference between thecommon electrode 4 and the transparent electrode on thecolor filter substrate 2 side is 0. While the voltage signals applied to thecommon electrode 4 and thegate line 3 are not the same. When a scanning signal is loaded, because the potential difference between the common electrode 4 and the transparent electrode on the side of the color film substrate 2 is 0, liquid crystal molecules between the common electrode 4 and the transparent electrode on the side of the color film substrate 2 are not deflected, the electric field intensity of most regions of the whole liquid crystal panel is 0, only the liquid crystal molecules between the gate line 3 and the transparent electrode on the side of the color film substrate 2 and the liquid crystal molecules corresponding to the region between the common electrode 4 and the gate line 3 are deflected, when the display screen is pressed by a large force, the region between the common electrode 4 and the gate line 3 cannot be completely shielded, light can be leaked in the region, when the gap between the common electrode 4 and the gate line 3 in the green pixel unit 12 is set to be minimum, the electric field direction change degree between the common electrode 4 and the gate line 3 in the green pixel unit 12 is minimum, and therefore, the influence on the deflection of the liquid crystal molecules corresponding to the region between the common electrode 4 and the gate line 3 is minimum, the deflection amplitude of the liquid crystal molecules corresponding to the area is minimum, the light leakage degree is minimum, the brightness of the leaked green light is weakest, and the human eyes are most sensitive to the green, so that the phenomenon of poor light leakage sensed when the human eyes observe the picture display of the display panel can be further improved.

It can be understood that, in the existingarray substrate 1, when the gap width between the orthographic projection of thecommon electrode 4 on thefirst substrate 10 and the orthographic projection of thegate line 3 on thefirst substrate 10 is the maximum allowable width, and the gap width between the orthographic projection of thecommon electrode 4 on thefirst substrate 10 and the orthographic projection of thegate line 3 on thefirst substrate 10 in thegreen pixel unit 12 is smaller than the maximum allowable width, the area of the light leakage region can be effectively reduced to a certain extent, and the direction of the electric field between thecommon electrode 4 and thegate line 3 in thegreen pixel unit 12 is changed, so as to reduce the deflection amplitude of the liquid crystal corresponding to the region between thecommon electrode 4 and thegate line 3 in thegreen pixel unit 12, further reduce the degree of green light leakage, reduce the adverse effect of light leakage on the picture display of the display panel, and since human eyes are most sensitive to green, therefore, the light leakage phenomenon can be obviously improved when the human eyes observe the light leakage phenomenon.

Thecommon electrode 4 in this embodiment is made of a conductive material, such as an ITO (Indium tin oxide) film. Thecommon electrodes 4 in this embodiment may be connected together by a conducting wire, so that thecommon electrodes 4 on thearray substrate 1 may present a mesh structure, and an electric field generated by a voltage on thecommon electrodes 4 is distributed more uniformly on thearray substrate 1, thereby avoiding occurrence of crosstalk, and facilitating improvement of the display effect of the pixel unit.

The material of thefirst substrate 10 in this embodiment includes one or more of glass, silica, polyethylene, polypropylene, polystyrene, polylactic acid, polyethylene terephthalate, polyimide, and polyurethane. This makes it possible to provide thefirst substrate 10 with a good water and oxygen blocking function and a good panel protection function.

It can be understood that thearray substrate 1 includes afirst substrate 10, a plurality ofgate lines 3, a plurality ofdata lines 7, a plurality of pixel electrodes, and a plurality of thin film transistors. A plurality ofgate lines 3, a plurality ofdata lines 7, a plurality of pixel electrodes and a plurality of thin film transistors are disposed on thefirst substrate 10.

A plurality ofgrid lines 3 are arranged in parallel, a plurality ofdata lines 7 are arranged in parallel, thegrid lines 3 and thedata lines 7 are arranged in a crossed mode, thegrid lines 3 and thedata lines 7 are arranged vertically, thedata lines 7 and thegrid lines 3 are arranged in a crossed mode and are arranged in a surrounding mode to form a plurality of pixel units, pixel electrodes are arranged on the pixel units, thin film transistors are arranged at the crossed positions of thegrid lines 3 and thedata lines 7, and the thin film transistors are arranged on the pixel units. The thin film transistor comprises a grid electrode, a source electrode and a drain electrode, the grid electrode of the thin film transistor is electrically connected with thegrid line 3, the source electrode of the thin film transistor is electrically connected with thedata line 7, and the drain electrode of the thin film transistor is electrically connected with the pixel electrode.

Referring to fig. 1, in the first embodiment of the present application, the plurality of pixel units further include ared pixel unit 11 and ablue pixel unit 13; the gap width between the orthographic projection of thecommon electrode 4 on thefirst substrate 10 and the orthographic projection of thegate line 3 on thefirst substrate 10 in thegreen pixel unit 12 isd 1; the gap width between the orthographic projection of thecommon electrode 4 on thefirst substrate 10 and the orthographic projection of thegate line 3 on thefirst substrate 10 in thered pixel unit 11 isd 2; the gap width between the orthographic projection of thecommon electrode 4 on thefirst substrate 10 and the orthographic projection of thegate line 3 on thefirst substrate 10 in theblue pixel unit 13 isd 3; wherein d1< d2 and d1<d 3.

With the above arrangement, in three colors of red, green and blue, since human eyes are most sensitive to green, the present embodiment sets the gap width d1 between the orthogonal projection of thecommon electrode 4 on thefirst substrate 10 and the orthogonal projection of thegate line 3 on thefirst substrate 10 in thegreen pixel cell 12 to be smaller than both the gap width d2 between the orthogonal projection of thecommon electrode 4 on thefirst substrate 10 and the orthogonal projection of thegate line 3 on thefirst substrate 10 in thered pixel cell 11 and the gap width d3 between the orthogonal projection of thecommon electrode 4 on thefirst substrate 10 and the orthogonal projection of thegate line 3 on thefirst substrate 10 in theblue pixel cell 13, thus, the area of light leakage from thegreen pixel cell 12 becomes small, and the degree of light leakage from thegreen pixel cell 12 is reduced, when the display panel is observed by human eyes, the adverse effect of light leakage on the display picture of the display panel can be weakened.

Referring to fig. 1, in the first embodiment of the present application, d2 isd 3.

It should be noted that, in the first embodiment of the present application, the gap width d2 between the orthogonal projection of thecommon electrode 4 in thered pixel cell 11 on thefirst substrate 10 and the orthogonal projection of thegate line 3 on thefirst substrate 10 is equal to the gap width d3 between the orthogonal projection of thecommon electrode 4 in theblue pixel cell 13 on thefirst substrate 10 and the orthogonal projection of thegate line 3 on thefirst substrate 10, in which case, the gap width d1 between the orthogonal projection of thecommon electrode 4 in thegreen pixel cell 12 on thefirst substrate 10 and the orthogonal projection of thegate line 3 on thefirst substrate 10 is still the smallest, and can also play a role of weakening the adverse effect of light leakage on the display screen of the display panel when viewed by human eyes.

Example two

Referring to fig. 2, in the second embodiment of the present application, d2<d 3.

With the above arrangement, setting the gap width d2 between the orthographic projection of thecommon electrode 4 on thefirst substrate 10 and the orthographic projection of thegate line 3 on thefirst substrate 10 in thered pixel cell 11 to be smaller than the gap width d3 between the orthographic projection of thecommon electrode 4 on thefirst substrate 10 and the orthographic projection of thegate line 3 on thefirst substrate 10 in theblue pixel cell 13 can reduce the area of the light leakage region of thered pixel cell 11 relative to theblue pixel cell 13; since human eyes are more sensitive to red than blue, d2< d3 is set, so that the light leakage degree of thered pixel unit 11 is less than that of theblue pixel unit 13, and the adverse effect of the light leakage on the display picture of the display panel can be weakened when the human eyes observe the light leakage.

In thearray substrate 1 of the first embodiment to the second embodiment, d3 is not more than 6 μm.

It should be noted that, the above 6 μm is a gap width between an orthographic projection of the common electrode 4 on the first substrate 10 and an orthographic projection of the gate line 3 on the first substrate 10 in the conventional array substrate 1, in the embodiment of the present application, a gap width d3 between an orthographic projection of the common electrode 4 on the first substrate 10 in the blue pixel unit 13 and an orthographic projection of the gate line 3 on the first substrate 10 may be equal to 6 μm, and correspondingly, a gap width d2 between an orthographic projection of the common electrode 4 on the first substrate 10 in the red pixel unit 11 and an orthographic projection of the gate line 3 on the first substrate 10 may be equal to 6 μm or less than 6 μm, so that when designing the array substrate 1, only a gap width d1 between an orthographic projection of the common electrode 4 on the first substrate 10 in the green pixel unit 12 and an orthographic projection of the gate line 3 on the first substrate 10 and a gap width d1 between the common electrode 4 on the first substrate 10 in the red pixel unit 11 are needed to be the first substrate 10 The gap width d2 between the orthographic projection of the substrate 10 and the orthographic projection of the grid line 3 on the first substrate 10 is reduced, and the manufacturing steps are reduced.

The gap width d3 between the orthogonal projection of thecommon electrode 4 on thefirst substrate 10 and the orthogonal projection of thegate line 3 on thefirst substrate 10 in theblue pixel unit 13 can also be smaller than 6 μm, so that the area of the light leakage area of theblue pixel unit 13 can be reduced, at this time, d1, d2 and d3 are all smaller than 6 μm, compared with the existingarray substrate 1, when light leakage occurs when the liquid crystal display panel is pressed, the light leakage areas of thered pixel unit 11, thegreen pixel unit 12 and theblue pixel unit 13 are all reduced, the adverse effect on the display picture of the liquid crystal display panel is effectively reduced, and the image quality of the display picture of the display panel is improved as a whole.

As a preferred embodiment, d3 may be set to 6 μm, and d2 may be set between 1-6 μm, and may be set to 3 μm, as the smaller d1 is set as better without affecting the aperture ratio. At this time, the area of light leakage from thegreen pixel unit 12 is the smallest, the area of light leakage from thered pixel unit 11 is the middle, and the area of light leakage from theblue pixel unit 13 is the largest, so that the image quality of the picture displayed by the display panel sensed by the human eyes under the condition can be known according to the sequence of the sensitivity of the human eyes to the color.

In thearray substrate 1 according to the first to second embodiments of the present application, referring to fig. 1 and 2, thecommon electrode 4 and thegate line 3 are disposed on the same layer.

Through the arrangement, thecommon electrode 4 and thegrid line 3 are arranged on the same layer, so that the manufacturing steps can be simplified, and the problem of thickness increase of thearray substrate 1 caused by different layers of thecommon electrode 4 and thegrid line 3 is solved.

In thearray substrate 1 of the first to second embodiments of the present application, thecommon electrode 4 corresponds to the pixel electrode, thecommon electrode 4 is disposed below the pixel electrode, and an orthogonal projection of thecommon electrode 4 on thefirst substrate 10 overlaps an orthogonal projection of the pixel electrode on thefirst substrate 10. The pixel electrode in thegreen pixel unit 12 is agreen pixel electrode 121, the pixel electrode in thered pixel unit 11 is ared pixel electrode 111, and the pixel electrode in theblue pixel unit 13 is ablue pixel electrode 131.

Referring to fig. 3, in thearray substrate 1 of the second embodiment of the present application, distances between thecommon electrode 4 and thegate line 3 in different pixel units are different, specifically, a distance between thecommon electrode 4 and thegate line 3 in thegreen pixel unit 12 is the smallest, a distance between thecommon electrode 4 and thegate line 3 in thered pixel unit 11 is centered, and a distance between thecommon electrode 4 and thegate line 3 in theblue pixel unit 13 is the largest, and since the sensitivity of human eyes to three colors of green, red, and blue is the most sensitive to green, the red is centered, and the blue is the least sensitive, the structure in fig. 3 can minimize the stimulation of light leakage from thegreen pixel unit 12 to human eyes, and then the light leakage from thered pixel unit 11 and theblue pixel unit 13 can effectively improve the light leakage phenomenon experienced by human eyes.

Referring to fig. 4, in thearray substrate 1 of the second embodiment of the present disclosure, thegate lines 3 on thearray substrate 1 are parallel to the long sides of the pixel units, and thedata lines 7 are parallel to the short sides of the pixel units, so that thedata lines 7 can be saved, and the color of the pixel units in each row is the same, so that the thin film transistors in thegreen pixel units 12 in the same row are connected to thesame gate line 3, and the distances between thecommon electrodes 4 and thegate lines 3 in thegreen pixel units 12 in the same row are the same, which is also convenient for the arrangement of thegate lines 3 on thearray substrate 1.

EXAMPLE III

Referring to fig. 5, in the third embodiment of the present application, thearray substrate 1 further includes alight shielding layer 8; the gap is located within the orthographic projection of the light-shielding layer 8 on thefirst substrate 10.

It should be noted that, by the arrangement of thelight shielding layer 8, the gap region between thegate line 3 and thecommon electrode 4 can be shielded, so that the gap region between thegate line 3 and thecommon electrode 4 is not shielded by the black matrix on thecolor film substrate 2, and light leakage is not caused, thereby preventing thearray substrate 1 from being poor in light leakage.

It is understood that the width of the light-shielding layer 8 in a direction perpendicular to the gate lines is greater than the width of the spacing regions between thegate lines 3 and thecommon electrodes 4 and less than the total width of thegate lines 3, thecommon electrodes 4 and the spacing regions. With this arrangement, thelight shielding layer 8 can not only shield the light in the space region, but also prevent the light from passing through the light transmitting region of thearray substrate 1. When thegate lines 3 and thecommon electrode 4 are disposed on the same layer, the light-shielding layer 8 is located above thegate lines 3 and thecommon electrode 4. Of course, the light-shielding layer 8 may also be located below thegate line 3 and thecommon electrode 4. No matter the arrangement is above or below thegate line 3 and thecommon electrode 4, light irradiated to the space region can be shielded, thereby preventing light leakage in the space region.

In the third embodiment of the present application, the thin film transistor included in the pixel unit includes a gate, an active region, a source, and a drain, the gate and thegate line 3 are disposed on the same layer and connected, the source and the drain are disposed on the same layer and made of the same material, the source and the drain are located above the gate, and thelight shielding layer 8 and the source and the drain are disposed on the same layer and made of the same material. As set forth above, the light-shielding layer 8 and the source and drain electrodes can be simultaneously formed by a single patterning process, so that the light-shielding layer 8 is prepared without an additional preparation process of thearray substrate 1. Optionally, thelight shielding layer 8 in this embodiment may be made of a metal material, including copper or a copper alloy, so that the formedlight shielding layer 8 has a good light shielding effect.

Example four

Referring to fig. 6, a fourth embodiment of the present application provides a liquid crystal display panel, including thearray substrate 1 according to any of the above embodiments; thecolor film substrate 2, thecolor film substrate 2 and thearray substrate 1 are arranged in a box-to-box mode; and theliquid crystal layer 5 is arranged between thecolor film substrate 2 and thearray substrate 1.

Thecolor film substrate 2 includes asecond substrate 20, and the material of thesecond substrate 20 includes one or more of glass, silica, polyethylene, polypropylene, polystyrene, polylactic acid, polyethylene terephthalate, polyimide, or polyurethane. This makes it possible to provide thesecond substrate 20 with a good water and oxygen blocking function and a good panel protection function.

Thecolor filter substrate 2 further includes ablack matrix layer 21, theblack matrix layer 21 is disposed on a surface of thesecond substrate 20 facing thefirst substrate 10, theblack matrix layer 21 is disposed opposite to a gap between thecommon electrode 4 and thegate line 3, and theblack matrix layer 21 is used for shielding light leakage from the gap between thecommon electrode 4 and thegate line 3 on thearray substrate 1. Thecolor filter substrate 2 further includes an ito layer covering theblack matrix layer 21 and the surface of thesecond substrate 20 facing thefirst substrate 10.

When the display panel is pressed by a large force, theblack matrix layer 21 on thecolor film substrate 2 side is shifted and cannot completely shield the gap between thecommon electrode 4 and thegate line 3, so that the regional electric field formed between thegate line 3 and the indium tin oxide layer on thecolor film substrate 2 side can cause theliquid crystal layer 5 to generate a liquid crystal deflection phenomenon, and light leaks from the gap between thecommon electrode 4 and thegate line 3. At this time, since the gaps between thecommon electrodes 4 and thegate lines 3 in each pixel unit are all adjusted to be small, the area of a light leakage area can be effectively reduced, and the direction of an electric field formed between thecommon electrodes 4 and thegate lines 3 can also be changed, so that the deflection amplitude of liquid crystals corresponding to the gaps between thecommon electrodes 4 and thegate lines 3 is influenced, the light leakage degree of the gaps between thecommon electrodes 4 and thegate lines 3 is reduced, the gray scale of leaked light is small, and the adverse effect caused by light leakage is reduced. Further, the gap width between thecommon electrode 4 and thegate line 3 in thegreen pixel unit 12 is adjusted to be minimum, then the gap width between thecommon electrode 4 and thegate line 3 in thered pixel unit 11 is centered, and finally the gap between thecommon electrode 4 and thegate line 3 in theblue pixel unit 13 is maximum, so that the severity of light leakage of the pixel unit observed by human eyes can be weakened by utilizing different sensitivity degrees of the human eyes to green, red and blue, and the phenomenon that the human eyes can obviously sense the light leakage of the pixel unit is improved.

Referring to fig. 7, fig. 7 is a schematic light leakage diagram of the liquid crystal display panel according to the fourth embodiment, and as can be seen from fig. 7, through adjustment of the gap width between thecommon electrode 4 and thegate line 3 in the pixel unit, the area of the light leakage region of thegreen pixel unit 12 is the smallest, the area of the light leakage region of thered pixel unit 11 is centered, and the area of the light leakage region of theblue pixel unit 13 is the largest, so that the most sensitive green color of human eyes has the smallest stimulation to human eyes, the phenomenon of light leakage can be improved to a certain extent, and human eyes can feel improvement of the image quality of the image displayed by the liquid crystal display panel.

The application provides a liquid crystal display panel's beneficial effect lies in: with thearray substrate 1, in the various pixel units in the present application, the gap width between the orthographic projection of thecommon electrode 4 of thegreen pixel unit 12 on thefirst substrate 10 and the orthographic projection of thegate line 3 on thefirst substrate 10 is the smallest, so that when the liquid crystal panel is pressed by a large pressure, the light leakage range between thecommon electrode 4 and thegate line 3 in thegreen pixel unit 12 is the smallest, and the influence of the electric field between thegate line 3 and thecommon electrode 4 in thegreen pixel unit 12 on the deflection amplitude of the liquid crystal is the smallest, because human eyes are most sensitive to green, human eyes can obviously feel the light leakage phenomenon to be improved when observing.

EXAMPLE five

Referring to fig. 8, a fifth embodiment of the present application provides a display device, which includes the liquid crystal display panel in any of the above embodiments and abacklight module 6 disposed on one side of the liquid crystal display panel.

Thebacklight module 6 includes alight guide plate 61, alight source module 62 and anoptical film 63, and thebacklight module 6 is used for providing illumination for the liquid crystal display panel.

In application, the display device may be a desktop computer, a notebook computer, a tablet computer, a television, a display, an advertisement machine, a large advertisement screen, or other devices having a display function.

The application provides a display device's beneficial effect lies in: by adopting the liquid crystal display panel, in the various pixel units in the present application, the gap width between the orthographic projection of thecommon electrode 4 of thegreen pixel unit 12 on thefirst substrate 10 and the orthographic projection of thegate line 3 on thefirst substrate 10 is the smallest, so that when the liquid crystal panel is pressed by a large pressure, the light leakage range between thecommon electrode 4 and thegate line 3 in thegreen pixel unit 12 is the smallest, and the influence of the electric field between thegate line 3 and thecommon electrode 4 in thegreen pixel unit 12 on the deflection amplitude of the liquid crystal is the smallest, because human eyes are most sensitive to green, human eyes can obviously feel the light leakage phenomenon to be improved when observing.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (10)

1. An array substrate comprising a first substrate (10) and pixel units defined by crossing gate lines (3) and data lines (7), the pixel units comprising pixel electrodes, a common electrode (4) and thin film transistors connected to the gate lines (3), the pixel units having a plurality of types including green pixel units (12),

a gap exists between the orthographic projection of the common electrode (4) on the first substrate (10) and the orthographic projection of the grid line (3) on the first substrate (10);

the width of the gap of the green pixel cell (12) is smallest among the plurality of pixel cells.

2. The array substrate of claim 1, wherein the plurality of pixel units further comprises a red pixel unit (11) and a blue pixel unit (13);

the width of the gap of the green pixel cell (12) is d 1;

the width of the gap of the red pixel cell (11) is d 2;

the width of the gap of the blue pixel cell (13) is d 3;

wherein d1< d2 and d1< d 3.

3. The array substrate of claim 2, wherein d2< d 3.

4. The array substrate of claim 2, wherein d2 is d 3.

5. The array substrate of claim 2, wherein d3 is less than or equal to 6 μm.

6. The array substrate according to any one of claims 1 to 5, further comprising a light shielding layer (8);

the gap is located within an orthographic projection of the light-shielding layer (8) on the first substrate (10).

7. The array substrate of claim 6, wherein the light-shielding layer has a width in a direction perpendicular to the gate lines that is greater than a width of the gap.

8. The array substrate of claim 1, wherein the common electrode (4) is disposed on the same layer as the gate line (3).

9. A liquid crystal display panel, comprising:

an array substrate (1) according to any one of claims 1 to 8;

the color film substrate (2) is arranged in a box-to-box mode with the array substrate (1);

and the liquid crystal layer (5) is arranged between the color film substrate (2) and the array substrate (1).

10. A display device comprising the liquid crystal display panel according to claim 9 and a backlight module (6) disposed at one side of the liquid crystal display panel.

Images