TWI385451B - Liquid crystal display (lcd) panel and manufacturing method thereof and liquid crystal display with lcd panel disclosed by the present invention - Google Patents

Description

Liquid crystal display panel and manufacturing method thereof and liquid crystal display

The present invention relates to a liquid crystal display, and more particularly to a liquid crystal display panel capable of improving the picture quality of a liquid crystal display and reducing its overall power consumption, and a method of fabricating the same.

For the rapid advancement of the multimedia society, most of them benefit from the dramatic advancement of semiconductor components or display devices. As far as the display is concerned, a liquid crystal display (Liquid Crystal Display) having superior characteristics such as high image quality, good space utilization efficiency, low power consumption, and no radiation has gradually become the mainstream of the market. What is worth mentioning here is that in the drive architecture of today's liquid crystal displays, the drive mode of AC mode common voltage (for example, the drive mode of line reversal) is usually used to drive existing medium and small sizes. The LCD panel is driven by a DC mode common voltage driving structure (for example, dot inversion display technology) to drive an existing larger size liquid crystal display panel.

However, if the driving structure of the AC mode shared voltage drives the existing medium and small size liquid crystal display panels, the overall power consumption of the liquid crystal display may be reduced, but the final picture quality of the liquid crystal display is not very delicate. In addition, when a conventional large-sized liquid crystal display panel is driven by a driving structure in which a DC mode is shared voltage, the picture quality of the liquid crystal display can be improved, but the overall power consumption of the liquid crystal display also increases.

In view of this, an object of the present invention is to provide a liquid crystal display panel The liquid crystal display panel of the present invention is mainly formed by forming the opposite substrate of the liquid crystal display panel into two patterned common electrodes, and periodically. The voltage of the two patterned common electrodes is switched, so that under the driving structure of the shared voltage of the AC mode, the picture quality of the liquid crystal display can be made more refined, and the overall power consumption of the liquid crystal display also decreases.

Based on the above and other objects, the present invention provides a liquid crystal display panel including an active device array substrate, a counter substrate, a liquid crystal layer, and a driving circuit. The active device array substrate has a plurality of pixel units arranged in an array, and the pixel units are further divided into a first group of pixel units and a second group of pixel units. The opposite substrate has a first patterned common electrode and a second patterned common electrode, wherein the first patterned common electrode and the second patterned common electrode are respectively associated with the first group of pixel units and the second group The pixel unit is relative.

In addition, the liquid crystal layer is disposed between the active device array substrate and the opposite substrate, and the driving circuit is configured to cause the voltages of the first patterned common electrode and the second patterned common electrode to be periodically exchanged. The voltage of the first patterned common electrode and the second patterned common electrode only needs to be changed once during one picture.

From another point of view, the present invention provides a liquid crystal display having the liquid crystal display panel of the present invention.

From another point of view, the present invention provides a method for fabricating a liquid crystal display panel, comprising the steps of: firstly, providing an active device array substrate, wherein the active device array substrate has a plurality of arrays arranged in an array The pixel units are listed, and the pixel units are further divided into a pixel unit of the first group and a pixel unit of the second group.

Next, a counter substrate is provided, wherein the opposite substrate has a first patterned common electrode and a second patterned common electrode, and the first patterned common electrode and the second patterned common electrode are respectively associated with the first group The pixel unit is opposite to the pixel unit of the second group. Thereafter, the liquid crystal layer is disposed between the active device array substrate and the counter substrate. Finally, a drive circuit is provided to cause the voltages of the first patterned common electrode and the second patterned common electrode to be periodically interchanged. The voltage of the first patterned common electrode and the second patterned common electrode only needs to be changed once during one picture.

In an embodiment of the invention, the first group of pixel units includes all odd columns of pixel units, and the second group of pixel units includes all even columns of pixel units. In this state, the driving mode of the liquid crystal display panel is column inversion.

In another embodiment of the present invention, the pixel unit of the first group includes an odd number of pixel units in all odd-numbered pixel units and an even number of pixel units in all even-numbered pixel units. And the pixel unit of the second group includes an even number of pixel units in all odd-numbered pixel units and an odd number of pixel units in all even-numbered pixel units. In this state, the driving mode of the liquid crystal display panel is dot inversion.

The liquid crystal display panel provided by the present invention and the manufacturing method thereof can be applied to the present liquid crystal display, and the liquid crystal display panel provided by the present invention and the manufacturing method thereof are formed by using the opposite substrate of the liquid crystal display panel. The two common electrodes are patterned and the voltages of the two patterned common electrodes are periodically switched. Therefore, under the driving mode of the AC mode shared voltage, the liquid crystal display panel can achieve the effect that can be achieved under the driving structure of the DC mode shared voltage, and the final picture quality of the liquid crystal display is also more refined. In addition, the overall power consumption of the liquid crystal display is also much lower than that of the prior art liquid crystal display panel using the AC mode shared voltage.

The above and other objects, features and advantages of the present invention will become more <RTIgt;

The technical effect to be achieved by the present invention is to improve the picture quality finally presented by the liquid crystal display and reduce the overall power consumption thereof. The following content will be described in detail for the technical features of the present invention and the effects to be achieved, and will be provided to the technical personnel of the relevant fields of the invention.

FIG. 1 is a block diagram of a liquid crystal display 100 according to an embodiment of the invention. Referring to FIG. 1, the liquid crystal display 100 includes a liquid crystal display panel 101, a gate driver 103, and a source driver 105. FIG. 2 is a schematic diagram of a liquid crystal display panel 101 according to an embodiment of the invention. Referring to FIG. 1 and FIG. 2 together, in the embodiment, the gate driver 103 sequentially outputs the scan signals by using the M gate wirings according to the basic timing CPV provided by the timing controller (Tcon, not shown). (scan signal), correspondingly open each column of pixel units R in the liquid crystal display panel 101. The source driver 107 according to the image data VD provided by the timing controller, and corresponding output data A data voltage is supplied to each column of pixel units R in the liquid crystal display panel 101 that is turned on by the gate driver 103.

The liquid crystal display panel 101 includes an active device array substrate 201, a counter substrate 203, a liquid crystal layer (not shown), and a driving circuit 205, wherein the liquid crystal layer is disposed between the active device array substrate 201 and the opposite substrate 203. The active device array substrate 201 has a plurality of pixel units 201a arranged in an array, and each of the pixel units 201a is disposed at an intersection of a plurality of scanning lines SL and a plurality of data lines DL, and these pixel units 201a is further divided into a pixel unit of the first group and a pixel unit of the second group.

The opposite substrate 203 has a first patterned common electrode CP1 and a second patterned common electrode CP2, wherein the first patterned common electrode CP1 and the second patterned common electrode CP2 are respectively associated with the first group of pixel elements and the second group The pixel units of the group are relative. The driving circuit 205 is configured to cause the voltages of the first patterned common electrode CP1 and the second patterned common electrode CP2 to be periodically interchanged.

In this embodiment, the first group of pixel units includes all odd columns of pixel units, and the second group of pixel units includes all even columns of pixel units. In this state, when the liquid crystal display panel 101 adopts the driving mode of the AC mode shared voltage, the user only needs to use the first patterned common electrode CP1 and the second patterned common electrode CP2 during one frame. A column inversion drive can be achieved by a voltage transition once. This will be different from the prior art. When the liquid crystal display panel adopts the AC mode shared voltage driving structure, the user needs to provide the common electrode to the common electrode of the opposite substrate during one screen period. The voltage (Vcom) voltage is changed multiple times (each column of pixels needs to be changed once) to achieve the column inversion driving mode.

Therefore, according to the above, the voltage of the first patterned common electrode CP1 and the second patterned common electrode CP2 can be changed once in one screen, so it can be inferred that the liquid crystal display of the embodiment The overall power consumption of 100 will be reduced a lot.

In addition, FIG. 3 is a schematic diagram of a liquid crystal display panel 300 according to another embodiment of the present invention. Referring to FIG. 1 to FIG. 3, the maximum difference between the liquid crystal display panel 300 and the liquid crystal display panel 101 of the present embodiment is that the pixel unit of the first group of the embodiment includes all the odd-numbered pixels in the pixel unit. The odd-numbered pixel units 201a and the even-numbered pixel units 201a of all even-numbered pixel units, and the second group of pixel units include even-numbered pixel units 201a of all odd-numbered pixel units An odd number of pixel units 201a in all pixel units of even columns.

In this state, when the liquid crystal display panel 300 adopts the driving mode of the AC mode shared voltage, the user only needs to have the first patterned common electrode CP1 and the second patterned common electrode CP2 during one frame. The voltage is changed once to achieve dot inversion driving. As such, the liquid crystal display panel 300 of the present embodiment can cause the overall power consumption of the liquid crystal display device 100 to be the same as that of the liquid crystal display device 100 of the previous embodiment. However, since the dot-reversal driving mode can be achieved, the liquid crystal display device 100 is finally rendered. The picture quality is better.

In order to achieve the technical effects that the liquid crystal display panel 101 and the liquid crystal display panel 300 can achieve, a liquid crystal display will be further described below. Panel method. 4 is a flow chart of a method of fabricating a liquid crystal display panel according to an embodiment of the invention. Referring to FIG. 4, the method 400 for fabricating a liquid crystal display panel of the present embodiment includes the following steps. First, as described in step S401, an active device array substrate is provided, wherein the active device array substrate has a plurality of arrays arranged in an array. A pixel unit, and the pixel units are further divided into a pixel unit of the first group and a pixel unit of the second group.

Next, as shown in step S402, a counter substrate is provided, wherein the opposite substrate has a first patterned common electrode and a second patterned common electrode, and the first patterned common electrode and the second patterned common electrode respectively The pixel units of the first group are opposite to the pixel units of the second group. Thereafter, as described in step S403, the liquid crystal layer is disposed between the active device array substrate and the opposite substrate. Finally, as described in step S404, a driving circuit is provided to cause the voltages of the first patterned common electrode and the second patterned common electrode to be periodically interchanged.

In this embodiment, the pixel units of the first group include all odd-numbered columns of pixel units, and the second group of pixel units include all even-numbered pixel units. In this state, the technical effects that the liquid crystal display panel 101 of the above embodiment can achieve can be achieved.

In addition, when the pixel unit of the first group includes an odd number of pixel units in all odd-numbered pixel units and an even number of pixel units in all even-numbered pixel units, and the second group of pixels The unit then includes an even number of pixel units in all odd-numbered pixel units and an odd number of pixel units in all even-numbered pixel units. In this state, the above can be achieved. The technical effect that the liquid crystal display panel 300 of the embodiment can achieve.

In summary, the liquid crystal display panel provided by the present invention can be applied to today's liquid crystal displays. According to the above embodiments, the present invention at least includes the following advantages:

1. When the liquid crystal display panel adopts the AC mode shared voltage driving structure, the overall power consumption of the liquid crystal display can be further reduced under the driving structure of the prior art liquid crystal display panel in the AC mode shared voltage.

2. When the liquid crystal display panel adopts the driving mode of the AC mode shared voltage, the liquid crystal display can achieve the effect that can be achieved under the driving structure of the DC mode shared voltage, thereby making the picture quality of the liquid crystal display more refined.

While the present invention has been described in its preferred embodiments, the present invention is not intended to limit the invention, and the present invention may be modified and modified without departing from the spirit and scope of the invention. The scope of protection is subject to the definition of the scope of the patent application.

100‧‧‧LCD display

101, 300‧‧‧ LCD panel

103‧‧‧gate driver

105‧‧‧Source Driver

201‧‧‧Active component array substrate

201a‧‧‧ pixel unit

203, 301‧‧‧ opposite substrate

205‧‧‧ drive circuit

R‧‧‧ column pixel unit

CPV‧‧‧Basic Timing

VD‧‧‧ image data

SL‧‧‧ scan line

DL‧‧‧ data line

CP1‧‧‧first patterned common electrode

CP2‧‧‧Second patterned common electrode

S401~S404‧‧‧ steps of the flow chart of the method for fabricating a liquid crystal display panel according to an embodiment of the present invention

1 is a block diagram of a liquid crystal display according to an embodiment of the invention.

2 is a schematic view of a liquid crystal display panel according to an embodiment of the invention.

3 is a schematic view of a liquid crystal display panel according to another embodiment of the present invention.

4 is a flow chart of a method of fabricating a liquid crystal display panel according to an embodiment of the invention.

300‧‧‧LCD display

201‧‧‧Active component array substrate

201a‧‧‧ pixel unit

205‧‧‧ drive circuit

301‧‧‧ opposite substrate

R‧‧‧ column pixel unit

SL‧‧‧ scan line

DL‧‧‧ data line

CP1‧‧‧first patterned common electrode

CP2‧‧‧Second patterned common electrode

Claims (16)

A liquid crystal display panel comprising: an active device array substrate, wherein a plurality of pixel units are arranged in an array, wherein the pixel units are divided into a first group of pixel units and a second group of pixels a unit having a first patterned common electrode and a second patterned common electrode, wherein the first patterned common electrode and the second patterned common electrode respectively and the first group of pixels The unit is opposite to the pixel unit of the second group; a liquid crystal layer disposed between the active device array substrate and the opposite substrate; and a driving circuit for causing the first patterned common electrode and the first The voltages of the two patterned common electrodes are periodically interchanged, wherein the voltages of the first patterned common electrode and the second patterned common electrode need to be converted only once during one picture. The liquid crystal display panel of claim 1, wherein the first group of pixel units includes all odd columns of the pixel units, and the second group of pixel units includes all even columns The pixel units. The liquid crystal display panel of claim 2, wherein the driving mode of the liquid crystal display panel comprises a column of inversion. The liquid crystal display panel of claim 1, wherein the first group of pixel units includes all odd-numbered pixel units of all odd-numbered pixels and all even-numbered pixels. Even number in the unit a pixel unit, and the pixel unit of the second group includes an even number of pixel units in the pixel units of all odd columns and an odd number of pixel units in the pixel units of all even columns . The liquid crystal display panel of claim 4, wherein the driving manner of the liquid crystal display panel comprises a point reversal. A liquid crystal display comprising: a liquid crystal display panel comprising: an active device array substrate, wherein a plurality of pixel units are arranged in an array, wherein the pixel units are divided into a first group of pixel units and a first a group of pixel units; a pair of substrates having a first patterned common electrode and a second patterned common electrode, wherein the first patterned common electrode and the second patterned common electrode respectively a group of pixel units opposite to the pixel unit of the second group; a liquid crystal layer disposed between the active device array substrate and the opposite substrate; and a driving circuit for causing the first pattern The voltage of the common electrode and the second patterned common electrode are periodically interchanged, wherein the voltage of the first patterned common electrode and the second patterned common electrode only needs to be changed once during one picture. The liquid crystal display of claim 6, further comprising: a gate driver coupled to the liquid crystal display panel, sequentially outputting a scan signal according to a basic timing to correspondingly open the plurality of columns of each of the columns Prime unit; A source driver is coupled to the liquid crystal display panel, and correspondingly outputs a data voltage according to an image data to the pixel units of each column that is turned on. The liquid crystal display of claim 6, wherein the first group of pixel units includes all odd columns of the pixel units, and the second group of pixel units includes all even columns The pixel units. The liquid crystal display of claim 8, wherein the driving mode of the liquid crystal display panel comprises a column of inversion. The liquid crystal display of claim 6, wherein the pixel unit of the first group comprises an odd number of pixel units of the pixel units of all odd columns and the pixel units of all even columns An even number of pixel units in the second group, and the pixel units of the second group include an even number of pixel units in the pixel units of all odd columns and an odd number of the pixel units in all even columns Pixel unit. The liquid crystal display of claim 10, wherein the driving mode of the liquid crystal display panel comprises a one-step inversion. A method for fabricating a liquid crystal display panel, comprising the steps of: providing an active device array substrate, wherein the active device array substrate has a plurality of pixel units arranged in an array, and the pixel units are divided into a first group of paintings a pixel unit and a second group of pixel units; providing a pair of substrates, wherein the opposite substrate has a first patterned common electrode and a second patterned common electrode, and the first patterned common electrode and The second patterned common electrode and the pixel group of the first group respectively And a pixel unit opposite to the second group; and disposing a liquid crystal layer between the active device array substrate and the opposite substrate; and providing a driving circuit to cause the first patterned common electrode and the The voltages of the second patterned common electrodes are periodically interchanged, wherein the voltages of the first patterned common electrode and the second patterned common electrode need to be converted only once during one picture. The method for fabricating a liquid crystal display panel according to claim 12, wherein the pixel unit of the first group includes all of the pixel units of the odd column, and the pixel units of the second group include all The pixel units are evenly listed. The method for fabricating a liquid crystal display panel according to claim 13, wherein the driving manner of the liquid crystal display panel comprises a column of inversion. The method for fabricating a liquid crystal display panel according to claim 12, wherein the pixel unit of the first group includes an odd number of pixel units and all even columns of the pixel units of all odd columns An even number of pixel units in the pixel unit, and the pixel unit of the second group includes even pixel units in the pixel units of all odd columns and all pixel units in all even columns An odd number of pixel units. The method for fabricating a liquid crystal display panel according to claim 15, wherein the driving manner of the liquid crystal display panel comprises a point reversal.