TWI475304B - Low-color-shift liquid crystal panel and the display apparatus using the same - Google Patents

Description

Low color shift liquid crystal panel and display

The invention relates to a liquid crystal display technology, in particular to a low color shift liquid crystal panel and a display.

Liquid crystal displays have been widely used in various electronic products, such as computer devices with display screens, mobile phones, or digital photo frames, and wide viewing angle technology is one of the development priorities of current liquid crystal displays. However, when the viewing angle of the side view or the squint is too large, a wide-angle liquid crystal display often has a color shift phenomenon, especially for an Asian nationality skin color image.

Fujitsu has proposed a technique for reducing the color shift of a wide viewing angle liquid crystal display by dividing a unit pixel into a plurality of sub-pixels and using a coupling capacitance to manufacture a multi-region voltage effect. It has been able to provide high contrast and fast response low color shift liquid crystal display products. However, the fabrication of the coupling capacitor must be supplemented by an additional manufacturing process for thin-film transistor (TFT) liquid crystal panels. If a floating electrode is used, the additional process described above is not required, but there is a floating electrode. The reliability caused by unstable potential is reduced. Therefore, it is necessary to develop new liquid crystal panel technology to improve the color shift problem when the liquid crystal display is viewed sideways or squinted.

In order to achieve the object, according to an aspect of the present invention, an embodiment provides a liquid crystal panel including: a first substrate; a second substrate; The first substrate is oppositely disposed; a liquid crystal layer is disposed between the first substrate and the second substrate; and at least one pixel unit, each pixel unit includes: a passivation layer formed on the first substrate, The passivation layer includes a first region and a second region; the first and second electrode layers are respectively disposed on the first and second regions; and an insulating layer is disposed on the first and second regions, and Located on the first and second electrode layers; wherein the thickness of the insulating layer on the first region is different from the thickness on the second region.

According to a first embodiment of the present invention, the surface of the first region is flat, the surface of the second region is uneven, the passivation layer has a first thickness below the first region, and the second The region has at least one recess, the passivation layer has a second thickness below the top surface of the recess, the passivation layer has a third thickness below the bottom surface of the recess, and the third thickness is less than the third Two thicknesses.

According to a second embodiment of the invention, the surface of the first and region is flat, the surface of the second region is flat, and the thickness of the first region is greater or smaller than the thickness of the second region.

According to a third embodiment of the present invention, the first substrate includes a first common electrode, the second substrate includes a second common electrode, and a capacitance value formed between the second common electrode and the first electrode layer Different from the capacitance value formed between the second common electrode and the second electrode layer. In addition, the liquid crystal layer includes a polymer-stabilized vertical alignment (LCD), the first electrode layer electrically connects or isolates the second electrode layer, the first common electrode applies a first voltage, and the first The second common electrode is applied with a second voltage, so that the polymer fixed vertical alignment liquid crystal is exposed to ultraviolet light and is respectively arranged on the first and second regions at different pretilt angles. Column.

In another aspect of the present invention, a liquid crystal display device includes a liquid crystal panel including: a first substrate; a second substrate disposed opposite the first substrate; a liquid crystal layer, Between the first substrate and the second substrate; and at least one pixel unit, each pixel unit includes: a passivation layer formed on the first substrate, the passivation layer includes a first region and a first a first region and a second electrode layer respectively disposed on the first and second regions; and an insulating layer disposed on the first and second regions and located on the first and second electrode layers Wherein the thickness of the insulating layer on the first region is different from the thickness on the second region.

For a more detailed understanding and understanding of the features, objects and functions of the present invention, the embodiments of the present invention are described in detail. In all of the specification and the drawings, the same component numbers will be used to designate the same or similar components.

In the description of the embodiments of the present invention, an element is described as being "above/above" or "below/under" of another element, referring to the case of directly or indirectly above or below the element. Contains other elements set between them. For the convenience and clarity of the description, the thickness or size of each film layer in the drawings is expressed in an exaggerated or omitted or schematic manner, and the dimensions of the respective constituent elements are not completely the actual dimensions.

One of the objects of the present invention is to solve the problem of color shift occurring in the side view or squint of a liquid crystal display. By dividing one pixel unit into two or more The sub-pixels are formed on the sub-pixel regions of the liquid crystal cell or the panel to form insulating layers of different thicknesses, and the equivalent series capacitance is changed, so that different sub-pixels are applied to the cross-voltage of the liquid crystal layer itself and the liquid crystal voltage-penetration The threshold voltage of the rate characteristic curve is different, and the effect of low color shift (LCS) is achieved.

In the embodiment of the present invention, the liquid crystal display is composed of a plurality of data lines coupled to the data line driving circuit, a plurality of scanning lines coupled to the scanning line driving circuit, a plurality of pixel units, and at least one common electrode. The data lines and the scan lines are substantially perpendicular to each other, and the data lines and scan lines interleaved with each other define one pixel unit. Each of the pixel units may include: a pixel electrode, a common electrode TFT _com disposed on a side of the thin film transistor (TFT) substrate, and a common electrode CF _com disposed on a side of the color filter (CF) substrate; wherein the pixel electrode is shared with the pixel electrode The electrode TFT _com forms a storage capacitor C _{st of} the pixel unit, and the pixel electrode and the common electrode CF _com form a liquid crystal capacitor C _{Lc of} the pixel unit. 1 is an equivalent circuit diagram of a pixel unit 10 of a liquid crystal display according to an embodiment of the present invention; wherein the pixel unit 10 includes a transistor 11 used as a switch. Each pixel unit can be divided into two or more sub-pixels by insulating layers of different thicknesses, which will be described in detail in the following embodiments.

2A is a schematic cross-sectional view of a liquid crystal panel 100 in accordance with a first embodiment of the present invention. The liquid crystal panel 100 includes a first substrate 110, a second substrate 120, a liquid crystal layer 130, a passivation layer 140, a first electrode layer 151, a second electrode layer 152, a third electrode layer 153, and a Insulation layer 160; wherein, for ease of reading, FIG. 2A illustrates one of a plurality of pixel units of the liquid crystal panel 100, and the junction of each pixel unit The structures are basically the same as each other. However, in other embodiments, the pixel unit structures may also differ from each other depending on design requirements.

As shown in FIG. 2A, the first substrate 110 and the second substrate 120 are disposed opposite to each other, and the upper and lower substrates of the liquid crystal panel 100 may be composed of a transparent material (for example, glass) for supporting the liquid crystal panel 100. Mechanical structure and light transmission without causing unnecessary loss of brightness in the light path. In this embodiment, the first substrate 110 includes a thin film transistor layer (not shown) and a common electrode TFT _com (not shown), and the second substrate 120 includes a color filter layer (not shown). And a third electrode layer 153, and in this embodiment, the third electrode layer 153 is a common electrode CF _com ; therefore, the first substrate 110 is a thin film transistor (TFT) substrate, and the second substrate 120 It is a color filter (CF) substrate. However, the present invention is not limited thereto. The first substrate of the liquid crystal panel 100 can be designed as a Color Filter on Array (COA), that is, the color filter system and the thin film transistor are on the same substrate. In other embodiments, the third electrode layer 153 may have different electrode patterns or different electrical separations with different potentials in combination with different sub-pixels. In addition, the liquid crystal layer 130 is filled with liquid crystal molecules (not shown) between the first substrate 110 and the second substrate 120; wherein, the liquid crystal is an organic molecule having a liquid-like fluidity and arranged in a regular crystal-like manner. The alignment of the liquid crystal molecules is affected by an external voltage or an electric field to cause a change in the polarization state of the light to achieve image display.

The passivation layer 140 is made of an electrically insulating material, which can be grown on the first substrate 110 by a thin film deposition technique and formed into a suitable longitudinal cross-sectional pattern by photolithographic etching. In this embodiment, each pixel unit can be divided into two sub-pixels by using insulating layers of different thicknesses, thus The passivation layer 140 will be respectively used as a corresponding fabrication region of the two sub-pixels according to the first region and the second region as shown in FIG. 2A, so as to cause the insulating layer to be fabricated in the subsequent process to be in the first and second regions. Different thicknesses are formed. In the present embodiment, the passivation layer 140 forms a flat surface in the first region and an uneven or uneven surface in the second region, thereby achieving the passivation layer 140 of different region thicknesses.

As shown in FIG. 2A, in the first region, the thickness of the passivation layer 140 is d1; and in the second region, the longitudinal cross-section of the passivation layer 140 is a concavo-convex pattern. In detail, a plurality of recesses 142 are etched into the second region of the passivation layer 140 such that the passivation layer 140 has a thickness d2 on the top surface of the recesses 142 and a thickness d3 on the bottom surface of the recesses 142. And the thickness d3 is smaller than the thickness d2. Considering the convenience in the process, the passivation layer 140 of the thickness d2 may be deposited on the first substrate 110, and then the first region is entirely etched downward by photolithography to make the thickness of the passivation layer 140 d1. At the same time, the groove portion of the second region is etched downward so that the thickness of the passivation layer 140 on the bottom surface of the grooves 142 is d3. In the present embodiment, the thickness d1 is substantially equal to the thickness d3; however, the present invention is not limited thereto, and the thickness d1 may not be equal to the thickness d3. In addition, in another embodiment, the passivation layer 140 of the thickness d2 may be deposited on the first substrate 110, and the recessed portion of the second region may be etched downward by photolithography to make the passivation layer 140. The thickness of the bottom surface of the grooves 142 is d3, but the passivation layer 140 of the first region is not etched; the thickness d1 of the passivation layer 140 in the first region is substantially equal to d2; however, the present invention does not For the sake of limitation, the thickness d1 may not be equal to the thickness d2.

The first and second electrode layers 151 and 152 are respectively disposed on the passivation layer The first and second regions of 140 are used as sub-pixel electrodes of the pixel unit in the first region and the second region. In this embodiment, the first electrode layer 151 is an electrode for a vertical alignment of a Fine Slit type or a Patterned Vertical Alignment (PVA) type, and the second electrode layer 152 is protected. Conformally disposed on the relief structure of the second region.

In this embodiment, the insulating layer 160 may be an alignment layer for liquid crystal alignment, which is made of a polymer material of polyimide (PI); however, the invention does not limit the insulating layer 160. It can also be used for other purposes of insulating materials, such as tantalum nitride (SiN _x ) or tantalum oxide (SiO _x ), or other kinds of liquid crystal alignment materials. The insulating layer 160 may be formed on the passivation layer 140 and the first and second electrode layers 151 and 152 by a coating process. Although, as described above, the passivation layer 140 has a regional thickness difference or/and a height difference of the uneven structure after the etching process, the above-mentioned insulating layer has a leveling process in the coating process. The surface of the insulating layer 160 will substantially approach flatness. In other words, the thickness of the insulating layer 160 on the first region will be different from the thickness on the second region, whereby each sub-pixel region of the pixel unit (the first region will form the sub-pixel A, and the second region will Sub-pixels B) are formed to form different equivalent series capacitances, which will be described in detail later; in this embodiment, since d3 is approximately equal to d1, the average thickness on the first region will be greater than the average thickness on the second region. In other embodiments, if d3 is less than d1, the average thickness on the first region may be less than or equal to the average thickness on the second region. Preferably, the insulating layer 160 has a thickness of about 50 nm to 1000 nm in the first region, a thickness of the second region of about 50 nm to 1000 nm, and a difference between the thickness of the first region and the average thickness on the second region is greater than or equal to 50 nm and less than 1000 nm.

3A is an equivalent circuit diagram of a pixel unit of the liquid crystal panel 100 according to the present embodiment; wherein the pixel unit 20 includes a transistor 11 used as a switch. As described above, the pixel unit 20 includes the first electrode layer 151 (the pixel electrode of the sub-pixel A), the second electrode layer 152 (the pixel electrode of the sub-pixel B), and the common electrode TFT _{com of} the first substrate 110. And the third electrode layer 153 of the second substrate 120, the third electrode layer 153 is a common electrode CF _com ; wherein the first and second electrode layers 151 and 152 and the common electrode TFT _com can form the same a storage capacitor C _st of the pixel unit, a liquid crystal capacitor C _{LcA of} the sub-pixel A and an equivalent capacitance C _{IA of} the insulating layer 160 may be formed between the first electrode layer 151 and the common electrode CF _com , and the second electrode A liquid crystal capacitor C _{LcB of} the sub-pixel B and an equivalent capacitance C _{IB of} the insulating layer 160 may be formed between the layer 152 and the common electrode CF _com .

When the panel is in the operation mode, the voltage across the voltage between the common electrode CF _com and the first electrode layer 151 is the same as the voltage across the common electrode CF _com and the second electrode layer 152. However, since the thickness of the insulating layer 160 on the first region is different from the thickness on the second region, the insulating layer capacitance C _{IA of the} sub-pixel A is not equal to the insulating layer capacitance C _{IB of the} sub-pixel B, and thus the influence is applied thereto. voltage across the liquid crystal layer 130 of the sub-pixels a and B will be different from each other, so that the subpixel liquid crystal capacitor _C LcB a liquid crystal capacitance _C LcA subpixel B is different from each other. Therefore, the threshold voltages of the applied voltage-transmittance (VT) characteristic curves of the sub-pixels A and B will also be different from each other; this phenomenon will increase as the thickness of the insulating layer becomes larger, and the threshold voltage difference will also increase. Low color cast (LCS) effect.

In another embodiment, the passivation layer, the first electrode layer, the second electrode layer, and the insulating layer may also be disposed on the second substrate, and FIG. 2B is another liquid crystal according to the first embodiment of the present invention. A schematic cross-sectional view of the panel 101. The liquid crystal panel 101 includes a first substrate 110, a second substrate 120, a liquid crystal layer 130, a passivation layer 140, a first electrode layer 154, a second electrode layer 155, a third electrode layer 156, and an insulating layer 160, and FIG. 2A The same portions of the liquid crystal panel 100 will not be described herein. As shown in FIG. 2B, the passivation layer 140 has third and fourth regions thereon, and it is also possible to form different thickness or different patterned insulating layers on different sub-pixel regions, and change the equivalent series capacitance combination and achieve Low color cast effect. In this embodiment, the third electrode layer 156 is a common electrode TFT _com ; further, the third electrode layer 156 on the first substrate 110 is the same in the third region and the fourth region. However, in other embodiments, the third electrode layer 156 may be of different patterns or electrically disconnected designs.

3B is an equivalent circuit diagram of a pixel unit of the liquid crystal panel 101 according to the present embodiment, and compared with FIG. 3A, the liquid crystal capacitor C _LcA (C _LcB ) will be aligned with the position of the insulating layer capacitance C _IA (C _IB ) of the sub-pixel. In addition, the above embodiments may form different thickness or different patterned insulating layers on different sub-pixel regions, and may be simultaneously applied to the first and second substrates 110 and 120, and the boundaries of the first and second regions are not It is necessary to align the boundaries of the third and fourth regions to cause a combination of capacitance values of various states, which is not limited by the present invention, depending on the actual situation.

In addition, the liquid crystal panel 100 of the embodiment can be combined with a polymer-stabilized process to make a difference in the liquid crystal pretilt angles of the first region and the second region, thereby further increasing the sub-pixels A and B. The difference in the threshold voltage of the applied voltage-transmission ratio (VT) characteristic curve. If the composition of the liquid crystal layer 130 is a polymer-stabilized vertical alignment (PSVA) liquid crystal, when the curing voltage is applied by the double common electrode during the ultraviolet light exposure curing process, since the liquid crystal layer 130 is in the sub-pixel The cross-voltages that A and B are subjected to are different from each other, and thus a regional difference in the pretilt angle at the time of liquid crystal curing can be caused. The common electrode TFT _com can apply a first voltage, and the common electrode CF _com can apply a second voltage, so that the polymer fixed vertical alignment liquid crystal is exposed to ultraviolet light and respectively in the sub-pixels A and B. The first and second regions are arranged at different pretilt angles.

When in the UV curing stage, please refer to Figures 4A and 4B. 4A and 4B are diagrams showing an equivalent circuit when the liquid crystal panel 100 is applied with a curing voltage by a double common electrode according to the present embodiment; wherein, FIG. 4A is a state in which the pixel electrode of the sub-pixel A and the pixel electrode of the sub-pixel B are electrically connected to each other, That is, the first electrode layer 151 and the second electrode layer 152 are electrically connected; and FIG. 4B is a state in which the pixel electrode of the sub-pixel A and the pixel electrode of the sub-pixel B are electrically isolated from each other, that is, the first The electrode layer 151 and the second electrode layer 152 are not electrically connected to each other. Since the first and second electrode layers 151 and 152 of FIG. 4A are electrically connected, the storage capacitances of the sub-pixels A and B are both C _st ; on the other hand, the first and second electrode layers of FIG. 4B are 151 and 152 are electrically isolated, and thus the storage capacitances of sub-pixels A and B are different, and are C _stA and C _stB , respectively. Whether the liquid crystal panel 100 applies a curing voltage in the double common electrode manner of FIG. 4A or 4B, the sharing can be controlled by the adjustment of the storage capacitors C _st , C _stA and C _stB and the insulating layer capacitance C _IA or C _IB . The applied voltage of the electrodes TFT _com and CF _com is divided or cross- _voltaged in the liquid crystal layer 130 so that different pretilt angles can be generated in different regions in the ultraviolet curing stage. By the different electrode designs of the sub-pixels A and B, the liquid crystal pretilt angles of the sub-pixels A and B can be controlled differently in the ultraviolet curing stage, and the applied voltage-transmission rate (VT) characteristics are further pulled. The difference in the threshold threshold voltage. In other embodiments, for example, the liquid crystal panel 101 of FIG. 2B may have the same effect, and details are not described herein.

FIG. 5 is a cross-sectional view showing a liquid crystal panel 200 according to a second embodiment of the present invention. The liquid crystal panel 200 is formed by a film of an organic material (PFA) or other organic insulating material to achieve a difference in thickness of the insulating layer of each sub-pixel region. The liquid crystal panel 200 includes a first substrate 210, a second substrate 220, a liquid crystal layer 230, a passivation layer 241, an organic material film layer 242, a first electrode layer 251, a second electrode layer 252, and a first The three-electrode layer 253 and an insulating layer 260; wherein FIG. 5 is also illustrated for one of the plurality of pixel units of the liquid crystal panel 200, and the structures of the respective pixel units are substantially identical to each other. The first substrate 210, the second substrate 220, the liquid crystal layer 230, the passivation layer 241, and the insulating layer 260 are similar to the first substrate 110 and the second substrate 120 of the first embodiment, respectively. The liquid crystal layer 130, the passivation layer 140, and the insulating layer 160 are similar to each other. In the present embodiment, the third electrode layer 253 can be a common electrode CF _com .

As shown in FIG. 5, the surface of the passivation layer 241 is flat, and the organic material film layer 242 can be formed by a process of a polymer film on Array (PFA) generally used for liquid crystal panels. On the passivation layer 241. The material of the organic material film layer 242 is a photoresist-like material for patterning; as long as it is exposed Machine insulation can be used for this layer. In this embodiment, each pixel unit can be divided into two sub-pixels by a thin film of organic material having different thicknesses, and thus the organic material film layer 242 can be based on the first region and the second region as shown in FIG. As the corresponding fabrication regions of the two sub-pixels, respectively, the insulating layer to be fabricated in the subsequent process is formed into different thicknesses in the first and second regions.

In the present embodiment, the passivation layer 241 and the organic material thin film layer 242 are combined into a passivation layer 240, which may be equivalent to the passivation layer 140 of the first embodiment. The thickness of the organic material film layer 242 or the passivation layer 240 in the first region may be greater or smaller than the thickness in the second region, which is not limited by the present invention, depending on the actual situation. In order to achieve a better effect, the thickness difference of the organic material film layer 242 or the passivation layer 240 on the first and second regions may be greater than the thickness difference of the insulating layer 260 on the first and second regions. At least 100 nm, so that the thickness difference of the insulating layer 260 on the first and second regions can reach 50 nm to 1000 nm; however, the invention is not limited thereto, and depends on the leveling property of the insulating layer material. In addition, if the organic material film layer 242 must retain the original organic material film (PFA) function of the liquid crystal panel, for example, reducing the series capacitance between the pixel electrode and the electrode of the data electrode, the thickness of the organic material film layer 242 must be More than 2 μm, otherwise the thickness is not limited by the present invention.

Since the passivation layer 240 forms a flat surface on the first and second regions, in the embodiment, the first electrode layer 151 and the second electrode layer 152 can respectively form micro slits for vertical alignment (Fine Slit) type or patterned vertical alignment (PVA) type of electrode. The insulating layer 260 can be formed on the passivation layer 240 and the first and second electrode layers 251 by a coating process. 252. Although the cross-sectional structure of the passivation layer 240 has a regional thickness difference, the surface of the insulating layer 260 is substantially flat due to the leveling property of the insulating layer in the coating process. In other words, the thickness of the insulating layer 260 on the first region will be different from the thickness on the second region, thereby forming different equivalent series capacitances in each of the sub-pixels A or B of the pixel unit. In order to achieve a better effect, the thickness difference of the insulating layer 260 on the first and second regions may be greater than or equal to 50 nm and less than 1000 nm. In this embodiment, the average thickness on the first region is less than the average thickness on the second region. In other embodiments, the average thickness on the first region may be greater than the average thickness on the second region, and if different regions have different concavo-convex patterns, the average thickness on the first region and the average thickness on the second region are It will vary depending on the pattern. Preferably, the first region of the insulating layer 260 has a thickness of about 50 nm to 1000 nm, the second region has a thickness of about 50 nm to 1000 nm, and the difference between the thickness of the first region and the average thickness of the second region is greater than or equal to 50 nm and less than 1000 nm.

In this embodiment, the equivalent circuit diagram of the pixel unit of the liquid crystal panel 200 can also be as shown in FIG. 3; in addition, the equivalent circuit diagram when the pixel unit applies a curing voltage to the dual common electrode can also be as shown in FIGS. 4A and 4B. Show. In another embodiment, the liquid crystal panel 200 may be disposed on the first substrate 210 (thin film substrate) and the second substrate 220 (color filter substrate). Different thicknesses of the insulating layer are formed on the pixel region, and the equivalent series capacitance is changed and the effect of low color shift is achieved.

In addition, FIG. 6 is a schematic structural diagram of an image display device 400 according to an embodiment of the present invention. The image display device 400 includes the liquid crystal panel 300 of the foregoing embodiment. The image display device 400 can be a display screen Computer equipment, mobile phones, or digital photo frames, etc., but the invention is not limited thereto. The configuration of the liquid crystal panel 300 has been described in detail in the above embodiments, in which the liquid crystal is an organic molecule having a liquid-like fluidity and arranged in a regular crystal-like manner. The alignment of the liquid crystal molecules is affected by an external voltage or an electric field to cause a change in the polarization of the light to achieve display of the image.

The above is only the preferred embodiment of the present invention, and the scope of the present invention is not limited thereto. It is to be understood that the scope of the present invention is not limited by the spirit and scope of the present invention, and should be considered as a further embodiment of the present invention.

10/20‧‧‧ pixel unit

11‧‧‧Optoelectronics

C _st /C _stA /C _stB ‧‧‧ storage capacitor

C _LcA /C _{LcB ‧‧‧Liquid} Crystal Capacitor

C _IA /C _IB ‧‧‧Insulator Capacitance

TFT _com /CF _com ‧‧‧Common electrode

100/200/300‧‧‧ LCD panel

110/210‧‧‧First substrate

120/220‧‧‧second substrate

130/230‧‧‧Liquid layer

140/240/241‧‧‧ Passivation layer

142‧‧‧ Groove

242‧‧‧film layer of organic material

151/154/251‧‧‧First electrode layer

152/155/252‧‧‧Second electrode layer

153/156/253‧‧‧ third electrode layer

160/260‧‧‧Insulation

D1/d2/d3‧‧‧ thickness

400‧‧‧Image display device

1 is an equivalent circuit diagram of a pixel unit of a liquid crystal display according to an embodiment of the present invention.

2A and 2B are schematic cross-sectional views showing a liquid crystal panel according to a first embodiment of the present invention.

3A and 3B are equivalent circuit diagrams of a pixel unit of a liquid crystal panel according to the present embodiment.

4A and 4B are equivalent circuit diagrams when a liquid crystal panel is applied with a curing voltage by a double common electrode according to the present embodiment.

Figure 5 is a cross-sectional view showing a liquid crystal panel according to a second embodiment of the present invention.

FIG. 6 is a schematic structural diagram of an image display device according to an embodiment of the invention, the image display device comprising the liquid crystal panel of the foregoing embodiment.

100‧‧‧LCD panel

110‧‧‧First substrate

120‧‧‧second substrate

130‧‧‧Liquid layer

140‧‧‧ Passivation layer

142‧‧‧ Groove

151‧‧‧First electrode layer

152‧‧‧Second electrode layer

153‧‧‧ third electrode layer

160‧‧‧Insulation

D1/d2/d3‧‧‧ thickness

Claims (19)

A liquid crystal panel comprising: a first substrate; a second substrate disposed opposite the first substrate; a liquid crystal layer disposed between the first substrate and the second substrate; and at least one pixel unit, Each of the pixel units includes: a first passivation layer formed on the first substrate, the first passivation layer includes a first region and a second region; and the first and second electrode layers are respectively disposed on the first And a first insulating layer disposed on the first and second regions and located on the first and second electrode layers; wherein the first insulating layer is on the first region The thickness is different from the thickness on the second region, and the first passivation layer has a concave-convex structure (P8 L4-9) in the second region, and the second electrode layer is conformally disposed on the The concave and convex structure of the second region (P9 L2-6). The liquid crystal panel of claim 1, wherein the first substrate comprises a thin film transistor layer and a first common electrode, and the second substrate comprises a color filter layer and a second common electrode. The liquid crystal panel of claim 1, wherein the surface of the first region is flat, and the surface of the second region is uneven. The liquid crystal panel of claim 3, wherein the first electrode layer comprises a Fine Slit vertical alignment or patterned vertical alignment type electrode. The liquid crystal panel of claim 3, wherein the first passivation layer has a first thickness under the first region, and the second region has at least one recess, the first passivation layer being A recess has a second thickness below the top surface, the first passivation layer has a third thickness below the bottom surface of the recess, and the third thickness is less than the second thickness. The liquid crystal panel of claim 3, wherein a difference between a thickness of the first insulating layer on the first region and an average thickness on the second region is greater than or equal to 50 nm and less than or equal to 1000 nm. The liquid crystal panel of claim 1, wherein the surface of the first region is flat, and the surface of the second region is flat. The liquid crystal display pixel according to claim 7, wherein the first electrode layer comprises a micro slit vertical alignment or patterned vertical alignment type first electrode, and the second electrode layer comprises a micro slit vertical A second electrode that is oriented or patterned in a vertical alignment pattern. The liquid crystal panel of claim 7, wherein the thickness of the first region is greater than the thickness of the second region. The liquid crystal panel of claim 7, wherein the thickness of the first region is smaller than the thickness of the second region. The liquid crystal panel of claim 1, wherein each of the pixel units further comprises: a second passivation layer formed on the second substrate, the second passivation layer comprising a third region and a fourth a third and fourth electrode layers respectively disposed on the third and fourth regions; and a second insulating layer disposed on the third and fourth regions and located at the And a third electrode layer on the third region; wherein the thickness of the second insulating layer on the third region is different from the thickness on the fourth region. The liquid crystal panel of claim 11, wherein the surface of the third region is flat, and the surface of the fourth region is uneven. The liquid crystal panel of claim 11, wherein the third electrode layer comprises a third slit of a vertical slit or patterned vertical alignment pattern, and the fourth electrode layer is conformally Set on the fourth area. The liquid crystal panel of claim 2, wherein a capacitance value formed between the second common electrode and the first electrode layer is different from that formed between the second common electrode and the second electrode layer The value of the capacitor. The liquid crystal panel of claim 2, wherein the liquid crystal layer comprises a polymer-fixed vertical alignment (PSVA) liquid crystal, the first electrode layer is electrically connected to the second electrode layer, and the first common electrode is applied A first voltage is applied, and the second common electrode is applied with a second voltage, so that the polymer-fixed vertical alignment liquid crystal is exposed to ultraviolet light and arranged at different pretilt angles on the first and second regions, respectively. The liquid crystal panel of claim 2, wherein the liquid crystal layer comprises a polymer fixed vertical alignment (PSVA) liquid crystal, the first electrode layer electrically isolating the second electrode layer, and the first common electrode is applied A first voltage is applied, and the second common electrode is applied with a second voltage, so that the polymer-fixed vertical alignment liquid crystal is exposed to ultraviolet light and arranged at different pretilt angles on the first and second regions, respectively. A liquid crystal display device includes a liquid crystal panel, the liquid crystal panel includes: a first substrate; a second substrate disposed opposite to the first substrate; a liquid crystal layer disposed between the first substrate and the second substrate And at least one pixel unit, each pixel unit includes: a passivation layer formed on the first substrate, the passivation layer includes a first region and a second region; and the first and second electrode layers are respectively disposed On the first and second regions; and an insulating layer disposed on the first and second regions and on the first and second electrode layers; wherein the insulating layer is on the first region The thickness is different from the thickness on the second region. The liquid crystal display device of claim 17, wherein each pixel unit further comprises: a second passivation layer formed on the second substrate, the second passivation layer comprising a third region and a first a fourth region; third and fourth electrode layers respectively disposed on the third and fourth regions; and a second insulating layer disposed on the third and fourth regions and located at the third and fourth electrodes And a thickness of the second insulating layer on the third region is different from a thickness on the fourth region. The liquid crystal display device of claim 18, wherein The surface of the third region is flat, and the surface of the fourth region is not flat.