CN111880331A

CN111880331A - Display structure of liquid crystal display screen

Info

Publication number: CN111880331A
Application number: CN202010807476.1A
Authority: CN
Inventors: 唐隽鹏
Original assignee: Shenzhen Liding Lcd Technology Co ltd
Current assignee: Shenzhen Liding Lcd Technology Co ltd
Priority date: 2020-08-12
Filing date: 2020-08-12
Publication date: 2020-11-03

Abstract

The embodiment of the application provides a liquid crystal display structure, the liquid crystal display structure includes a backlight module and a display panel which are arranged in a stacked manner, the backlight module is used for providing light for the display panel, the display panel includes an array substrate and a color film substrate which are arranged at intervals, and a liquid crystal layer which is arranged between the array substrate and the color film substrate, the array substrate is arranged adjacent to the backlight module relative to the color film substrate, the array substrate includes a glass substrate and a buffer layer which are arranged in a stacked manner, the surface of the buffer layer, which is deviated from the glass substrate, is provided with a first electrode, a second electrode and a third electrode which are insulated from each other and arranged side by side in sequence, the distance between the second electrode and the color film substrate is larger than the distance between the first electrode and the color film substrate, and the distance between the second electrode. The embodiment of the application is beneficial to improving the penetration rate of the liquid crystal display panel under the same aperture opening ratio, and further improving the display effect of the liquid crystal display panel.

Description

Display structure of liquid crystal display screen

Technical Field

The application relates to the technical field of display, especially, relate to a liquid crystal display shows structure.

Background

A Liquid Crystal Display (LCD) panel has the advantages of thin body, low power consumption, small radiation, soft image Display, and the like, and is widely used. The transmittance (transmittance ratio) is an important index of the display quality of the liquid crystal display panel, the transmittance of the liquid crystal display screen is improved, the energy consumption of the backlight module can be reduced, and the cost is reduced. Under the condition of the same backlight, higher brightness can be realized, and the gray scale level can be adjusted more clearly. Several large elements that generally affect the transmittance of a liquid crystal display panel include: the liquid crystal display panel comprises a polaroid, liquid crystal efficiency, film absorption of an array substrate and a color film substrate and the aperture opening ratio of the liquid crystal display panel. The liquid crystal efficiency refers to the transmittance of the liquid crystal display panel at the same aperture ratio. The liquid crystal efficiency is closely related to the reverse design of the liquid crystal molecules, and different liquid crystal reverse designs directly affect the transmittance of the liquid crystal display panel.

Disclosure of Invention

The embodiment of the application provides a liquid crystal display screen display structure, which comprises a backlight module and a display panel which are arranged in a laminated manner, the backlight module is used for providing light rays for the display panel, the display panel comprises an array substrate and a color film substrate which are arranged at intervals, and a liquid crystal layer positioned between the array substrate and the color film substrate, the array substrate is arranged close to the backlight module relative to the color film substrate and comprises a glass substrate and a buffer layer which are arranged in a laminated manner, the surface of the buffer layer, which is far away from the glass substrate, is provided with a first electrode, a second electrode and a third electrode which are insulated from each other and arranged side by side in sequence, the distance between the second electrode and the color film substrate is larger than the distance between the first electrode and the color film substrate, and the distance between the second electrode and the color film substrate is greater than the distance between the third electrode and the color film substrate.

The surface of the buffer layer is provided with a depressed part, the second electrode is contained in the depressed part, and the first electrode, the second electrode and the third electrode are continuously arranged.

Wherein the first electrode has a first surface facing away from the buffer layer, the second electrode has a second surface facing away from the buffer layer, the third electrode has a third surface facing away from the buffer layer, the first surface, the second surface, and the third surface are curved surfaces, the center of curvature of the first surface and the third surface both face toward a side near the buffer layer, and the center of curvature of the second surface faces toward a side facing away from the buffer layer.

Wherein the first surface, the second surface and the third surface form an undulate structure.

The widths of the first electrode, the second electrode and the third electrode are kept consistent and are all 2-4 micrometers.

The display panel further comprises a common electrode, the common electrode is located on one side of the color film substrate adjacent to the array substrate, the common electrode is opposite to the pixel electrode, and the liquid crystal layer is located between the common electrode and the pixel electrode.

The liquid crystal display panel comprises a liquid crystal layer, a signal line, a common electrode and a signal line, wherein the signal line is arranged between every two adjacent pixel electrodes, the signal line and the pixel electrodes are arranged in an insulating mode, a dielectric layer covers the surface of the signal line, the dielectric constant of the dielectric layer is smaller than that of the liquid crystal layer, and the dielectric layer is used for reducing coupling capacitance between the signal line and the common electrode.

The display panel further comprises a plurality of transparent isolation columns arranged at intervals, the isolation columns are located between the array substrate and the color film substrate, the isolation columns are used for partitioning the liquid crystal layer into a plurality of liquid crystal areas arranged at intervals, and the isolation columns are arranged in the thickness direction of the display structure of the liquid crystal display corresponding to the signal lines.

The backlight module comprises a light guide plate and a backlight source located on one side of the light guide plate, and further comprises a reflecting layer, a transmission layer and a bonding layer, wherein the reflecting layer is located on one side, deviating from the display panel, of the light guide plate, the transmission layer is located on one side, adjacent to the display panel, of the light guide plate, the bonding layer is located between the light guide plate and the transmission layer, and the reflecting layer, the bonding layer and the transmission layer are mutually matched to enable light emitted by the backlight source towards the direction of the light guide plate to be transmitted towards one side of the display panel.

The surface of the reflecting layer facing the light guide plate is formed by connecting a plurality of concave surfaces, and the surface of the transmitting layer facing the display panel is in a sawtooth shape.

The liquid crystal display structure provided by the embodiment of the application comprises a backlight module and a display panel which are arranged in a laminated manner, wherein the display panel comprises an array substrate and a color film substrate which are arranged at intervals, a first electrode, a second electrode and a third electrode which are insulated and arranged in parallel are arranged on the surface of the array substrate, the distance between the second electrode and the color film substrate is larger than the distance between the first electrode and the color film substrate, and the distance between the second electrode and the color film substrate is greater than the distance between the third electrode and the color film substrate, thereby the arrangement of the first electrode, the second electrode and the third electrode is in a wavy arrangement, when the first electrode, the second electrode and the third electrode are loaded with voltage, the liquid crystal display panel is beneficial to improving the inversion of liquid crystal molecules in the liquid crystal layer, improving the liquid crystal efficiency, improving the penetration rate under the same aperture opening ratio and further improving the display effect of the liquid crystal display panel.

Drawings

For a better understanding of the structural features and functions of the present application, reference is made to the accompanying drawings, which form a part hereof, and in which is shown by way of illustration specific embodiments in which it may be practiced, and in which it will be apparent to one skilled in the art that other drawings may be practiced without the use of the inventive faculty.

Fig. 1 is a schematic structural diagram of a display structure of a liquid crystal display panel according to an embodiment of the present application.

Fig. 2 is a schematic view of a stacked structure of a display structure of a liquid crystal display panel according to an embodiment of the present application.

Fig. 3 is a schematic view of a stacked structure of a display structure of a liquid crystal display panel according to another embodiment of the present application.

Fig. 4 is a schematic view of a partial stacked structure of a display structure of a liquid crystal display panel according to still another embodiment of the present application.

Fig. 5 is a schematic view of a partial stacked structure of a display structure of a liquid crystal display panel according to still another embodiment of the present application.

Fig. 6 is a schematic view of a partial stacked structure of a display structure of a liquid crystal display panel according to still another embodiment of the present application.

Fig. 7 is a schematic view of a stacked structure of a display structure of a liquid crystal display panel according to still another embodiment of the present application.

Fig. 8 is a waveform diagram of liquid crystal molecule deflection in a liquid crystal layer obtained by simulation.

Fig. 9 is a schematic view of a partial stacked structure of a display structure of a liquid crystal display panel according to still another embodiment of the present application.

Fig. 10 is a schematic view of a partial stacked structure of a display structure of a liquid crystal display panel according to still another embodiment of the present application.

Fig. 11 is a schematic view of a stacked structure of a display structure of a liquid crystal display panel according to still another embodiment of the present application.

Fig. 12 is a schematic view of a laminated structure of a bonding layer structure according to an embodiment of the present disclosure.

Fig. 13 is a schematic view of a laminate structure of a tie layer structure according to another embodiment of the present application.

Fig. 14 is a schematic diagram of a stacked structure of a transmissive layer structure according to an embodiment of the present application.

Fig. 15 is a schematic view of a stacked structure of a transmissive layer structure according to another embodiment of the present application.

Fig. 16 is a schematic view of a stacked structure of a transmissive layer structure according to still another embodiment of the present application.

Fig. 17 is a schematic view of a stacked structure of a transmissive layer structure according to still another embodiment of the present application.

Fig. 18 is a schematic view of a stacked structure of a transmissive layer structure according to still another embodiment of the present application.

Fig. 19 is a schematic view of a stacked structure of a transmissive layer structure according to still another embodiment of the present application.

Fig. 20 is a schematic view of a stacked structure of a transmissive layer structure according to still another embodiment of the present application.

Fig. 21 is a schematic view of a stacked structure of a reflective layer structure according to an embodiment of the present disclosure.

DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It should be apparent that the described embodiments are only some of the embodiments of the present application, and not all embodiments. All other embodiments that can be derived by a person skilled in the art from the embodiments given herein without making any creative effort shall fall within the protection scope of the present application.

In order to make the technical solutions provided by the embodiments of the present application clearer, the above solutions are described in detail below with reference to the accompanying drawings.

Referring to fig. 1, an embodiment of the present application provides a liquid crystal display structure 1, where the liquid crystal display structure 1 includes a liquid crystal display panel 10. The lcd display structure 1 may be, but not limited to, an electronic book, a smart Phone (e.g., an Android Phone, an iOS Phone, a Windows Phone, etc.), a digital tv, a tablet computer, a palm computer, a notebook computer, a Mobile Internet device (MID, Mobile Internet Devices), or a wearable device.

Referring to fig. 2, the liquid crystal display structure 1 includes a backlight module 20 and a display panel 10 which are stacked, the backlight module 20 is configured to provide light for the display panel 10, the display panel 10 includes an array substrate 100 and a color filter substrate 200 which are arranged at an interval, and a liquid crystal layer 300 which is located between the array substrate 100 and the color filter substrate 200, the array substrate 100 is arranged adjacent to the backlight module 20 relative to the color filter substrate 200, the array substrate 100 includes a glass substrate 110 and a buffer layer 120 which are stacked, a first electrode 131, a second electrode 132 and a third electrode 133 which are insulated from each other and arranged side by side in sequence are arranged on a surface of the buffer layer 120 which is away from the glass substrate 110, a distance between the second electrode 132 and the color filter substrate 200 is greater than a distance between the first electrode 131 and the color filter substrate 200, and the distance between the second electrode 132 and the color filter substrate 200 is greater than the distance between the third electrode 133 and the color filter substrate 200.

The glass substrate 110 may be a flexible substrate, and the flexible substrate may be, but not limited to, a composite of a polyimide film (PI) or a polyester film and a copper foil. Because of the excellent properties of high temperature soldering resistance, high strength, high modulus, flame retardance and the like, the polyimide has outstanding thermal stability, good radiation resistance and chemical stability and excellent mechanical property as a high polymer material.

The first electrode 131, the second electrode 132, and the third electrode 133 may be made of a transparent conductive material, which may be, but not limited to, Indium Tin Oxide (ITO), which has excellent electrical conductivity and optical transparency and is widely used to manufacture liquid crystal displays, flat panel displays, plasma displays, touch panels, electronic papers, organic light emitting diodes, and solar cells, and antistatic coatings and also transparent conductive coatings for electromagnetic interference (EMI) shielding.

The first electrode 131, the second electrode 132 and the third electrode 133 form a pixel electrode 130, the liquid crystal layer 300 is located between the pixel electrode 130 and the color filter substrate 200, and the second electrode 132 is relatively far from the first electrode 131, the third electrode 133 and the color filter substrate 200, so that the arrangement among the first electrode 131, the second electrode 132 and the third electrode 133 is in a wavy shape, and when the first electrode 131, the second electrode 132 and the third electrode 133 are loaded with voltage, the inversion of liquid crystal molecules in the liquid crystal layer 300 is improved, that is, the liquid crystal efficiency is improved, the aperture ratio is further improved, and the display quality of the liquid crystal display panel 10 is improved.

In one embodiment, the widths of the first electrode 131, the second electrode 132, and the third electrode 133 are uniform and are all 2-4 μm. Because the first electrode 131, the second electrode 132, and the third electrode 133 have the same width on the transverse plane, the first electrode 131, the second electrode 132, and the third electrode 133 have a uniform inversion effect on the liquid crystal molecules in the liquid crystal layer 300, so that the liquid crystal molecules have a better inversion property, the liquid crystal efficiency is improved, the aperture ratio of the display panel 10 is further improved, and the display quality of the display panel 10 is improved.

Further, the first electrode 131, the second electrode 132 and the third electrode 133 are kept aligned in the thickness direction of the lcd display structure 1, that is, the first electrode 131, the second electrode 132 and the third electrode 133 are insulated and continuously distributed, so that the transverse electric field generated by the electrodes is relatively obvious, which is helpful to deflect the liquid crystal molecules by 45 °, further improving the liquid crystal efficiency and improving the display quality of the display panel 10.

The liquid crystal display structure 1 provided in the embodiment of the present application includes a backlight module 20 and a display panel 10, which are stacked, the display panel 10 includes an array substrate 100 and a color filter substrate 200, which are disposed at an interval, a first electrode 131, a second electrode 132, and a third electrode 133 are disposed on a surface of the array substrate 100, which are insulated and arranged in parallel, a distance between the second electrode 132 and the color filter substrate 200 is greater than a distance between the first electrode 131 and the color filter substrate 200, and a distance between the second electrode 132 and the color filter substrate 200 is greater than a distance between the third electrode 133 and the color filter substrate 200, so that the arrangement of the first electrode 131, the second electrode 132, and the third electrode 133 presents a wavy arrangement, and when voltages are applied to the first electrode 131, the second electrode 132, and the third electrode 133, a curved surface with a concave-convex variation is formed between the first electrode 131, the second electrode 132, and the third electrode 133, therefore, the electric field at the joint of the adjacent electrodes can be improved, which is helpful for increasing the transverse electric field and pushing the liquid crystal azimuth to reverse, thereby improving the penetration rate of the liquid crystal display panel 10 under the same aperture ratio and improving the display effect of the liquid crystal display panel 10. Furthermore, the larger the degree of variation of the unevenness among the first electrode 131, the second electrode 132, and the third electrode 133 is, the stronger the transverse electric field is, and the better the liquid crystal is inverted, so that the transmittance of the liquid crystal display panel 10 under the same aperture ratio can be improved more significantly, and the display effect of the liquid crystal display panel 10 can be further improved.

Referring to fig. 3 and fig. 4, in one embodiment, the buffer layer 120 is carried on the surface of the glass substrate 110, a recess 121 is formed on the surface of the buffer layer 120, the second electrode 132 is accommodated in the recess 121, and the first electrode 131, the second electrode 132 and the third electrode 133 are arranged in series.

Specifically, the surface of the buffer layer 120 is etched to form a recess 121 for accommodating the second electrode 132, so that the second electrode 132 is farther from the color filter substrate 200 than the first electrode 131 and the third electrode 133. At this time, the first electrode 131, the second electrode 132 and the third electrode 133 are located on the undulating curved surface, which is helpful for generating a transverse electric field, and when acting on the liquid crystal molecules, the liquid crystal efficiency can be improved, thereby improving the aperture ratio and improving the display quality of the display panel 10.

Furthermore, an insulating coating 122 is arranged between two adjacent electrodes, and the insulating coating 122 is partially embedded in the buffer layer 120, penetrates through the buffer layer 120, and partially extends into the glass substrate 110, so that on one hand, the two adjacent electrodes can be thoroughly blocked, and the electrodes are arranged in an insulating manner; on the other hand, the insulating plating layer 122 also serves to firmly connect the buffer layer 120 and the glass substrate 110, and prevent the two from being separated.

Furthermore, the width of the insulating plating layer 122 gradually increases along the thickness direction of the lcd display structure 1, that is, the width of the insulating plating layer 122 gradually increases from the glass substrate 110 to the buffer layer 120, wherein the width refers to the transverse dimension in the transverse plane of the display panel 10, that is, the insulating plating layer 122 is cone-shaped, when the etching process is adopted to form the insulating plating layer 122, the filling of the insulating plating layer 122 can be more compact by effectively using the gradient, and the anti-dropping effect is achieved.

Furthermore, the insulating plating layer 122 is distributed in the buffer layer 120 in a three-dimensional mesh structure, so that the first electrode 131, the second electrode 132 and the third electrode 133 can be insulated and isolated more thoroughly, and the insulating plating layer 122 is embedded in the buffer layer 120 and the glass substrate 110, so that the connection firmness of the buffer layer 120 and the glass substrate 110 is improved, and the falling-off problem is avoided.

Still referring to fig. 5, in some embodiments, the second electrode 132 is accommodated in the recess 121, and a plurality of burr structures 123 arranged at intervals are disposed on a contact surface between the second electrode 132 and the recess 121, the burr structures 123 are distributed along a center of the second electrode 132 toward one side of the buffer layer 120 in a divergent manner, and a divergent direction of the burr structures 123 is consistent with a normal direction of the second electrode 132 away from an outer surface of the buffer layer 120, so that the second electrode 132 can be more firmly embedded in the recess 121 of the buffer layer 120, and the second electrode 132 is prevented from being detached, which affects liquid crystal efficiency and further affects display quality of the display panel 10.

With continued reference to fig. 6, in one embodiment, the first electrode 131 has a first surface 131a facing away from the buffer layer 120, the second electrode 132 has a second surface 132a facing away from the buffer layer 120, the third electrode 133 has a third surface 133a facing away from the buffer layer 120, the first surface 131a, the second surface 132a, and the third surface 133a are curved surfaces, the first surface 131a and the third surface 133a have a center of curvature facing toward a side close to the buffer layer 120, and the second surface 132a has a center of curvature facing away from the buffer layer 120.

Specifically, the first surface 131a and the third surface 133a protrude outward toward one side of the color filter substrate 200, and the second surface 132a protrudes inward toward one side of the array substrate 100, so that the first surface 131a, the second surface 132a, and the third surface 133a form an undulating wave-shaped structure. When an approximate sine or cosine waveform is formed between the first surface 131a, the second surface 132a and the third surface 133a, the liquid crystal molecules in the liquid crystal layer 300 can be inverted well, and are deviated from 45 degrees, so that dark stripes are not easily generated, the aperture opening ratio is improved, the liquid crystal efficiency is improved, and the display effect of the liquid crystal display panel 10 is further improved.

With reference to fig. 7, the first electrode 131, the second electrode 132, and the third electrode 133 form a pixel electrode 130, a plurality of pixel electrodes 130 are arranged at intervals on the surface of the buffer layer 120, the display panel 10 further includes a common electrode 140, the common electrode 140 is located on one side of the color film substrate 200 adjacent to the array substrate 100, the common electrode 140 is disposed opposite to the pixel electrodes 130, and the liquid crystal layer 300 is located between the common electrode 140 and the pixel electrodes 130.

The two ends of the common electrode 140 and the pixel electrode 130 are used for applying a voltage, and when a voltage difference exists between the common electrode 140 and the pixel electrode 130, the liquid crystal molecules can be driven to generate an oriented deflection, so that light is displayed through the display panel 10. The common electrode 140 may be regarded as a one-piece conductive plate, and may generally record a voltage of 0V. The pixel electrodes 130 are usually formed by arranging a plurality of conductive plates arranged at intervals, and voltages with different sizes can be loaded to different pixel electrodes 130, so that the deflection condition of liquid crystal molecules can be flexibly regulated and controlled, and the display quality is improved.

The electrode units in the pixel electrode 130 adjacent to the third electrode 133 are sequentially denoted as a fourth electrode 134, a fifth electrode 135 and a sixth electrode 136, the fourth electrode 134, the fifth electrode 135 and the sixth electrode 136 are disposed on the surface of the buffer layer 120 away from the glass substrate 110, the fourth electrode 134, the fifth electrode 135 and the sixth electrode 136 are sequentially and continuously arranged and are insulated from each other, the fourth electrode 134 is disposed adjacent to the third electrode 133, the distance between the fifth electrode 135 and the color filter substrate 200 is greater than the distance between the fourth electrode 134 and the color filter substrate 200, and the distance between the fifth electrode 135 and the color filter substrate 200 is greater than the distance between the sixth electrode 136 and the color filter substrate 200. The distance between the fifth electrode 135 and the color filter substrate 200 and the distance between the second electrode 132 and the color filter substrate 200 are consistent.

In one embodiment, the distance D between the third electrode 133 and the fourth electrode 134 is less than a preset distance value D. The predetermined distance D is the sum of the widths of the first electrode 131, the second electrode 132, and the third electrode 133, and at this time, the diffraction effect is most significant, which is helpful for increasing the aperture ratio of the liquid crystal display panel 10.

Specifically, the maximum distance between the third electrode 133 and the fourth electrode 134 is denoted as D, and when the maximum distance D between the third electrode 133 and the fourth electrode 134 is smaller than the preset distance value D, it indicates that the distance between the third electrode 133 and the fourth electrode 134 is smaller, at this time, the diffraction effect is more significant, and light can more easily penetrate through the first electrode 131, the second electrode 132, the third electrode 133, the fourth electrode 134, the fifth electrode 135, and the sixth electrode 136.

The surface of the buffer layer 120 facing away from the glass substrate 110 has a recessed region, the fourth electrode 134 is received in the recessed region, the width D1 of the recessed portion 121 and the width D2 of the recessed region are both smaller than a first preset width value K1, and the width D1 of the recessed portion 121 and the width D2 of the recessed region are both smaller than the distance D between the third electrode 133 and the fourth electrode 134. Where K1=2.75 microns.

The width d1 of the recess 121 may be equal to or different from the width d2 of the recess.

Specifically, when the maximum width of the recess 121 is denoted as D1, the maximum width of the recess is denoted as D2, and when both the width D1 of the recess 121 and the width D2 of the recess are smaller than the first preset width value K1, it indicates that both the width D1 of the recess 121 and the width D2 of the recess are smaller, and that both the recess 121 and the recess are narrower, and at the same time, both the width D1 of the recess 121 and the width D2 of the recess are smaller than the distance D between the third electrode 133 and the fourth electrode 134, in this case, the diffraction effect is significant, and light can more easily penetrate through the first electrode 131, the second electrode 132, the third electrode 133, the fourth electrode 134, the fifth electrode 135, and the sixth electrode 136, and specifically, the recess 121 and the recess are made narrower: when a photomask or a mask (mask) is manufactured, gaps are added on the first electrode 131, the third electrode 133, the fourth electrode 134 and the sixth electrode 136, so that the recess 121 and the recess area become narrower, and a small-distance photoresist between the third electrode 133 and the fourth electrode 134 is exposed by using the principle of grating diffraction, thereby reducing the volume of the third electrode 133 and the fourth electrode 134 and improving the transmittance of the liquid crystal display panel 10. Therefore, the present disclosure is helpful to improve the transmittance of the liquid crystal display panel 10 and improve the liquid crystal efficiency, and further, the smaller the distance between the third electrode 133 and the fourth electrode 134 is, the stronger the lateral electric field is, and the less the dark fringe is generated in the region between the third electrode 133 and the fourth electrode 134.

Optionally, the first electrode 131, the third electrode 133, the fourth electrode 134, and the sixth electrode 136 are strip-shaped electrodes, widths of the first electrode 131 and the third electrode 133 are all smaller than a second preset width value K2, and widths of the fourth electrode 134 and the sixth electrode 136 are all smaller than a third preset width value K3. Wherein K2=2.75 microns and K3=2.75 microns.

Specifically, when the maximum width of the first electrode 131 is denoted as L1, the maximum width of the third electrode 133 is denoted as L3, the maximum width of the fourth electrode 134 is denoted as L4, the maximum width of the sixth electrode 136 is denoted as L6, and the maximum width L1 of the first electrode 131 and the maximum width L3 of the third electrode 133 are both smaller than the second preset width value K2, and the maximum width L4 of the fourth electrode 134 and the maximum width L6 of the sixth electrode 136 are both smaller than the third preset width value K3, the diffraction effect is significant, light can more easily penetrate through the first electrode 131, the second electrode 132, the third electrode 133, the fourth electrode 134, the fifth electrode 135, and the sixth electrode 136, and therefore, the technical solution is helpful for improving the transmittance of the liquid crystal display panel 101, improving the transmittance at the same aperture ratio, and further, the distance between the third electrode 133 and the fourth electrode 134 is smaller, the stronger the lateral electric field, the less likely the region between the third electrode 133 and the fourth electrode 134 is to generate dark fringes.

In other words, theoretically, the smaller the widths of the first electrode 131 and the third electrode 133, the smaller the widths of the fourth electrode 134 and the sixth electrode 136, i.e., the narrower the widths of the first electrode 131, the third electrode 133, and the fourth electrode 134 and the sixth electrode 136 are, the more significant the diffraction effect is, and the easier the distance between the third electrode 133 and the fourth electrode 134 can be made to the target value. Optionally, the distance between the third electrode 133 and the fourth electrode 134 is designed mainly with reference to the minimum distance precision of a photomask or mask (mask) manufacturer, and theoretically, the smaller the distance between the third electrode 133 and the fourth electrode 134 is, the better the distance is, and the specific implementation principle is as follows: gaps are added on the first electrode 131, the third electrode 133, the fourth electrode 134 and the sixth electrode 136, so that the first electrode 131, the third electrode 133, the fourth electrode 134 and the sixth electrode 136 become narrower, and the small-distance photoresist between the third electrode 133 and the fourth electrode 134 is exposed by utilizing the principle of grating diffraction, so that the volumes of the third electrode 133 and the fourth electrode 134 are reduced, and the transmittance of the liquid crystal panel is improved. Referring to fig. 8, fig. 8 is a simulated waveform diagram of the liquid crystal molecule deflection in the liquid crystal layer 300. The inversion of the liquid crystal molecules was proved to be good.

With reference to fig. 9, a signal line 150 is disposed between two adjacent pixel electrodes 130, the signal line 150 and the pixel electrodes 130 are insulated, a dielectric layer 160 covers the surface of the signal line 150, the dielectric constant of the dielectric layer 160 is smaller than the dielectric constant of the liquid crystal layer 300, and the dielectric layer 160 is used to reduce the coupling capacitance between the signal line 150 and the common electrode 140.

In one embodiment, the dielectric layer 160 is a color resist layer. The color resistance layer may be a red color resistance (R color resistance), a green color resistance (G color resistance), a blue color resistance (B color resistance), or a white color resistance (W color resistance), and it can be understood that in other embodiments, the color resistance layer may also be a color resistance formed by matching the red color resistance (R color resistance), the green color resistance (G color resistance), the blue color resistance (B color resistance), or the white color resistance (W color resistance).

Wherein the predetermined dielectric constant is a dielectric constant of the liquid crystal layer 300. The signal line 150 may be a clock signal line 150.

In the present embodiment, the predetermined dielectric constant is a dielectric constant of the liquid crystal layer 300, and the dielectric constant of the dielectric layer 160 is smaller than the predetermined dielectric constant, that is, the dielectric constant of the dielectric layer 160 is smaller than the dielectric constant of the liquid crystal layer 300. Since the dielectric constant of the dielectric layer 160 is smaller than the dielectric constant of the liquid crystal layer 300, the dielectric layer 160 covers the surface of the clock signal line 150 adjacent to the common electrode 140, so that the coupling capacitance between the clock signal line 150 and the common electrode 140 can be reduced, the influence of the clock signal line 150 on the signal of the common electrode 140 is reduced, and the display effect of the liquid crystal display panel 10 is further improved.

The array substrate 100 includes a thin film transistor, and the clock signal line 150 and a gate electrode of the thin film transistor are formed in the same process. When the clock signal line 150 and the gate of the thin film transistor are formed in the same process, the process can be saved.

Alternatively, the clock signal line 150 and the source or drain of the thin film transistor are formed in the same process. When the clock signal line 150 and the source or drain of the thin film transistor are formed in the same process, the process can be also saved.

The signal line 150 is disposed between two adjacent pixel electrodes 130, and is insulated from the two pixel electrodes 130, and since the signal line 150 generates current during operation, it is easy to interfere with the electric field between the common electrode 140 and the pixel electrodes 130, in this embodiment, the dielectric layer 160 covers and wraps the surface of the signal line 150, so as to perform an insulating and isolating function, on one hand, the signal line 150 is prevented from being separated from the buffer layer 120, and on the other hand, the signal line 150 and the common electrode 140 can be isolated, so as to prevent the signal of the signal line 150 from being coupled to the common electrode 140, and interfere with the electric field between the common electrode 140 and the pixel electrodes 130.

Specifically, a groove J is formed in the surface of the array substrate 100 adjacent to the color film substrate 200, and the signal line 150 is disposed in the groove J, so that the distance between the signal line 150 and the common electrode 140 can be increased, and thus the coupling capacitance between the signal line 150 and the common electrode 140 is reduced, the influence of the signal line 150 on the signal of the common electrode 140 is reduced, and the display effect of the liquid crystal display panel 10 is improved.

With reference to fig. 10, the display panel 10 further includes a plurality of spaced and transparent spacers 170, the spacers 170 are located between the array substrate 100 and the color film substrate 200, the spacers 170 are used to separate the liquid crystal layer 300 into a plurality of liquid crystal regions arranged at intervals, and the spacers 170 are disposed in the thickness direction of the liquid crystal display structure 1 corresponding to the signal lines 150.

The isolation column 170 may be made of a transparent material, and the isolation column 170 is used to isolate the liquid crystal molecules in different regions to encapsulate and protect the liquid crystal molecules. The isolation pillar 170 is cone-shaped, that is, the contour size of the isolation pillar 170 is gradually reduced from the array substrate 100 to one side of the color film substrate 200, so that more light can penetrate out from one side of the color film substrate 200, and the display quality of the liquid crystal display panel 10 is improved.

Further, a black matrix 180 is arranged between the adjacent color resistance layers, and the black matrix 180 is used for isolating the adjacent color resistance units, so that color crosstalk between the adjacent color resistance units is avoided, and display quality is prevented from being affected. The color resistance layer may be a red color resistance (R color resistance), a green color resistance (G color resistance), a blue color resistance (B color resistance) or a white color resistance (W color resistance), and the separation column 170 is disposed corresponding to the black matrix 180 in the thickness direction of the liquid crystal display structure 1, and at this time, the separation column 170 avoids the color resistance layer, and does not interfere with the display effect of the display panel 10.

With reference to fig. 11, 12 and 13, the backlight module 20 includes a light guide plate 210 and a backlight source 220 located at one side of the light guide plate 210, the backlight module 20 further includes a reflective layer 230, a transmissive layer 240 and an adhesive layer 250, the reflective layer 230 is located at one side of the light guide plate 210 facing away from the display panel 10, the transmissive layer 240 is located at one side of the light guide plate 210 adjacent to the display panel 10, the adhesive layer 250 is located between the light guide plate 210 and the transmissive layer 240, and the reflective layer 230, the adhesive layer 250 and the transmissive layer 240 cooperate with each other to transmit light emitted from the backlight source 220 in a direction toward the light guide plate 210 toward one side of the display panel 10.

Specifically, the adhesive layer 250 is disposed on the light-emitting surface of the light guide plate 210, the adhesive layer 250 includes a plurality of refraction and transmission layers 251, and the refractive indexes of the plurality of refraction and transmission layers 251 are sequentially reduced along a direction away from the light-emitting surface of the light guide plate 210; the backlight source 220 is located at the light incident side of the light guide plate 210, and may be a front backlight or a side backlight; the reflective layer 230 is located on a side of the light guide plate 210 away from the light emitting surface, and is used for reflecting the light emitted from the backlight 220 toward a side of the display panel 10; the transmissive layer 240 is located on one side of the light emitting surface of the light guide plate 210, and includes a first adjusting layer 241 and a second adjusting layer 242 located on one side of the first adjusting layer 241 departing from the light guide plate 210.

Wherein, the bonding layer 250 includes a plurality of refraction and transmission layers 251 with different refractive indexes, the refractive index of each refraction and transmission layer 251 in the plurality of refraction and transmission layers 251 decreases gradually along the direction far away from the light-emitting surface of the light guide plate 210, that is, the refractive index of the plurality of refraction and transmission layers 251 farther away from the light-emitting surface is smaller, then the light passes through the plurality of refraction and transmission layers 251 and is refracted for a plurality of times, the included angle of the light deviating from the normal line in each layer becomes larger and larger, when the light exits the bonding layer 250, the light deviating from the normal line is formed, that is, the oblique light is formed relative to the light-emitting surface of the bonding layer 250, the angle between the oblique light and the light-emitting surface of the bonding layer 250 is smaller, that is, the deviation finding angle is larger, the oblique light further passes through the first adjusting layer 241 and the second adjusting layer 242, the first, the backlight source 220 has good light emitting effect, and better oblique light enters the liquid crystal display panel 10, which is beneficial to improving the aperture opening ratio of the liquid crystal display structure 1; when a driving electric field is applied to the liquid crystal layer 300, the liquid crystal molecules exhibit anisotropy, and oblique incident light enters the display panel 10, so that the oblique incident light can penetrate through the liquid crystal layer 300, and a display picture appears on the display panel 10.

Referring to fig. 14, further, the refraction transmission layer 251 is provided with the light modulating particles 252, and the volume of the light modulating particles 252 near the light guide plate 210 is larger than the volume of the light modulating particles 252 far from the light guide plate 210, so that the light from the backlight 220 will be transmitted from the optically dense medium toward the optically sparse medium, and the light will be more converged and transmitted toward the display panel 10, which is helpful to improve the utilization rate of the light and improve the display quality of the liquid crystal display panel 10. In addition, the light-adjusting particles 252 also have a function of adjusting uniformity of light, so that transmission of light is more uniform, and display effect is improved. In addition, the arrangement density of the light-adjusting particles 252 in the refraction transmission layer 251 decreases gradually from the side close to the light guide plate 210 toward the side away from the light guide plate 210, so that the light from the backlight 220 can be transmitted from the optically dense medium toward the optically sparse medium, the light can be converged more, the utilization rate of the light can be improved, and the display quality of the liquid crystal display panel 10 can be improved.

With reference to fig. 15 and fig. 16, the second adjusting layer 242 and the first adjusting layer 241 have the same structure, and the normal direction of the incident surface in the second adjusting layer 242 is consistent with the normal direction of the incident surface in the first adjusting layer 241, and the openings face to each other. The second adjusting layer 242 has the same structure as the first adjusting layer 241, that is, the second adjusting layer 242 also has a light condensing effect, the normal direction of the incident surface in the second adjusting layer 242 is consistent with the normal direction of the incident surface in the first adjusting layer 241, and the openings face to the other side, so that the light condensing direction of the second adjusting layer 242 is different from that of the first adjusting layer 241, the second adjusting layer 242 is disposed on the first adjusting layer 241, and the second adjusting layer 242 is matched with the first adjusting layer 241, so that the light emitting effect of the light backlight 220 in each direction can be improved, and the light emitting uniformity of the backlight 220 is improved.

In fig. 17, the surface of the first adjusting layer 241 facing the second adjusting layer 242 is saw-toothed, the first adjusting layer 241 approximately forms a concave lens structure, and has a converging effect on light, the surface of the second adjusting layer 242 facing the first adjusting layer 241 is a planar structure, and after the first adjusting layer 241 and the second adjusting layer 242 interact with each other, the light can converge, so that more light enters the display panel 100, the utilization rate of the light is improved, and the display quality of the liquid crystal display panel is improved.

Referring to fig. 18, the surface of the first adjusting layer 241 facing the second adjusting layer 242 is saw-toothed, the surface of the second adjusting layer 242 facing the first adjusting layer 241 is arc-shaped, and the lowest point of the concave region of the first adjusting layer 241 forms the center of the arc-shaped structure of the second adjusting layer 242, that is, when the light incident through the lowest point of the concave region of the first adjusting layer 241 is transmitted toward one side of the second adjusting layer 242, the transmission path of the light is not changed, so that the light is prevented from being scattered irregularly, and the light is protected well. The light rays incident into the second adjusting layer 242 through other regions of the first adjusting layer 241 have a better converging effect, which is helpful for improving the utilization rate of the relationship, and further improving the display quality of the display panel 10.

Referring to fig. 19 and fig. 20, a cavity region surrounded by the second adjusting layer 242 and the first adjusting layer 241 is filled with a colloid layer 243 and scattering particles 244, the colloid layer 243 is used to connect the second adjusting layer 242 and the first adjusting layer 241 together, the scattering particles 244 are distributed in the colloid layer 243, the distribution density of the scattering particles 244 gradually decreases from one side of the first adjusting layer 241 to one side of the second adjusting layer 242, and the refractive index of a mixture formed by the scattering particles 244 and the colloid layer 243 adjacent to one side of the second adjusting layer 242 is greater than that of the second adjusting layer 242, that is, light from the backlight 220 will be transmitted from the optically dense medium to the optically sparse medium, and the light will be more converged and transmitted toward the display panel 10, which is helpful for improving the utilization rate of the light and improving the display quality of the liquid crystal display panel 10.

Referring to fig. 21, the surface of the reflective layer 230 facing the light guide plate 210 is formed by connecting a plurality of concave surfaces 231, and the surface of the transmissive layer 240 facing the display panel 10 is saw-toothed.

The concave surface 231 may be a curved surface or a bent surface. The surface of the reflective layer 230 facing the light guide plate 210 is provided with a reflective coating, and the reflective coating is used for reflecting the light emitted by the backlight 220 towards one side of the light guide plate 210, so that more light enters the display panel 10, the utilization rate of the backlight 220 is increased, the utilization rate of the light is increased, and the display quality of the display panel 10 is further improved. The reflective coating can be light-shielding ink or light-shielding glue.

In some embodiments, the area of the concave surface 231 near the backlight 220 is larger than the area of the concave surface 231 far from the backlight 220, and since there are more light rays near the backlight 220, the larger concave surface 231 is required to reflect the light rays, so that more light rays are transmitted toward one side of the display panel 10, and less light rays are transmitted away from the backlight 220, so the area of the concave surface 231 can be relatively smaller, and the smaller reflective surface can reflect less light rays, so that the material can be saved.

In other embodiments, the concave surface 231 near the backlight 220 is partially toward the display panel 10, partially toward the backlight 220, and completely toward the display panel 10. Because there are more light rays near the backlight 220 and fewer light rays far from the backlight 220, in order to make the light rays emitted from the backlight 220 enter the display panel 10 more uniformly, the light rays emitted from the backlight 220 need to be mixed, and for this reason, part of the light rays near the backlight 220 needs to be conducted toward the light rays far from the backlight 220, so that the light rays are distributed more uniformly. The concave surface 231 near the side of the backlight 220 faces partially one side of the display panel 10 and partially one side of the display panel away from the backlight 220, so that light near the side of the backlight 220 can be effectively transmitted toward the side of the display panel away from the backlight 220, the light is uniform, and when the light uniformly enters the display panel 10, the display quality of the display panel 10 can be improved.

Further, the overall structure formed after the plurality of concave surfaces 231 are connected presents an arc-shaped structure, and the center of curvature of the arc-shaped structure faces one side of the display panel 100, which is equivalent to forming a large concave lens, so that the light has a converging effect, and the light emitted by the backlight 220 can be reflected towards one side of the display panel 100, so that more light enters the display panel 100, and the display quality of the display panel 100 is improved.

The foregoing detailed description of the embodiments of the present application has been presented to illustrate the principles and implementations of the present application, and the above description of the embodiments is only provided to help understand the method and the core concept of the present application; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims

1. A liquid crystal display screen display structure is characterized in that the liquid crystal display screen display structure comprises a backlight module and a display panel which are arranged in a stacking way, the backlight module is used for providing light rays for the display panel, the display panel comprises an array substrate and a color film substrate which are arranged at intervals, and a liquid crystal layer positioned between the array substrate and the color film substrate, the array substrate is arranged close to the backlight module relative to the color film substrate and comprises a glass substrate and a buffer layer which are arranged in a laminated manner, the surface of the buffer layer, which is far away from the glass substrate, is provided with a first electrode, a second electrode and a third electrode which are insulated from each other and arranged side by side in sequence, the distance between the second electrode and the color film substrate is larger than the distance between the first electrode and the color film substrate, and the distance between the second electrode and the color film substrate is greater than the distance between the third electrode and the color film substrate.

2. The lcd display structure of claim 1, wherein a recess is formed on a surface of the buffer layer, the second electrode is received in the recess, and the first electrode, the second electrode, and the third electrode are continuously disposed.

3. The liquid crystal display structure of claim 1, wherein the first electrode has a first surface facing away from the buffer layer, the second electrode has a second surface facing away from the buffer layer, the third electrode has a third surface facing away from the buffer layer, the first surface, the second surface, and the third surface are each curved, the first surface and the third surface have a center of curvature that is curved toward a side proximate to the buffer layer, and the second surface has a center of curvature that is curved toward a side facing away from the buffer layer.

4. The liquid crystal display panel display structure of claim 3, wherein the first surface, the second surface, and the third surface form an undulating wave structure.

5. The liquid crystal display panel display structure of claim 1, wherein the first electrode, the second electrode and the third electrode have a uniform width of 2 to 4 μm.

6. The lcd display structure of claim 1, wherein the first electrode, the second electrode and the third electrode form a pixel electrode, a plurality of pixel electrodes are arranged on the surface of the buffer layer at intervals, the display panel further comprises a common electrode, the common electrode is located on one side of the color film substrate adjacent to the array substrate, the common electrode is arranged opposite to the pixel electrode, and the liquid crystal layer is located between the common electrode and the pixel electrode.

7. The LCD display structure of claim 6, wherein a signal line is disposed between two adjacent pixel electrodes, the signal line and the pixel electrodes are insulated, a dielectric layer covers the surface of the signal line, the dielectric layer has a dielectric constant smaller than that of the liquid crystal layer, and the dielectric layer is used for reducing the coupling capacitance between the signal line and the common electrode.

8. The lcd display structure of claim 7, wherein the display panel further comprises a plurality of transparent spacers disposed at intervals, the spacers are located between the array substrate and the color filter substrate, the spacers are used to separate the liquid crystal layer into a plurality of liquid crystal regions arranged at intervals, and the spacers are disposed corresponding to the signal lines in the thickness direction of the lcd display structure.

9. The lcd display structure of any of claims 1-8, wherein the backlight module comprises a light guide plate and a backlight source disposed on one side of the light guide plate, the backlight module further comprising a reflective layer disposed on a side of the light guide plate facing away from the display panel, a transmissive layer disposed on a side of the light guide plate adjacent to the display panel, and an adhesive layer disposed between the light guide plate and the transmissive layer, the reflective layer, the adhesive layer, and the transmissive layer cooperating to transmit light emitted from the backlight source in a direction toward the light guide plate toward the one side of the display panel.

10. The lcd display structure of claim 9, wherein the reflective layer is formed by connecting a plurality of concave surfaces facing the surface of the light guide plate, and the transmissive layer is formed in a zigzag shape facing the surface of the display panel.