CN104134429A - Liquid crystal display - Google Patents

Abstract

The present invention provides a liquid crystal display, comprising: the display device comprises an effective display area, a plurality of pixel circuits and a plurality of pixel circuits, wherein the effective display area comprises a plurality of gate lines, a plurality of source lines and a plurality of signal transfer lines which are arranged in a staggered mode, the gate lines are perpendicular to the source lines, and the signal transfer lines are perpendicular to the gate lines; the gate driver comprises a plurality of first terminals which are respectively and electrically connected to the corresponding signal transfer lines; and a source driver including a plurality of second terminals electrically connected to the corresponding source lines, respectively. The gate driver and the source driver are respectively arranged on two parallel sides of the stepped effective display area, and the gate lines are electrically conducted with the corresponding signal transfer lines through a transfer bonding pad, so that the gate lines receive gate driving signals of the gate driver. Compared with the prior art, the gate driver and the source driver are arranged on the two parallel sides, so that signal routing does not need to occupy the space on the left side and the right side of the panel, and the narrow frame effect can be further improved.

Description

a liquid crystal display

technical field

The invention relates to the technical field of liquid crystal display, in particular to a liquid crystal display based on an arrangement structure of effective display areas.

Background technique

In the prior art, a liquid crystal display usually includes a display panel, which has a plurality of data lines (data lines), a plurality of gate lines (or scanning lines) interlaced with these data lines, and liquid crystals arranged in a matrix. Box (LC cell). In addition, a thin film transistor (Thin Film Transistor, TFT) is also included at the intersection of the data line and the gate line, wherein the gate of the TFT is electrically connected to the gate line, and the source of the TFT is electrically connected to the data line. And the drain of the TFT is electrically connected to the pixel electrode. In addition, the display panel also configures a gate driver to sequentially provide gate driving signals to the gate lines, and configures a source driver to provide data voltage signals to the data lines.

However, the active area of a traditional liquid crystal display is generally rectangular, and the gate driving signal and the source driving signal are respectively driven by different drivers or by an integrated driver chip. As we are well-known, the display screen has an effective display area and a viewing area (Viewing area). The effective display area refers to the pixel area that can actually generate images, which is located at the core of the entire display screen and occupies a larger proportion of the area; The visible area refers to the area where the pixel image is not actually generated, and is located at the periphery of the effective display area. For liquid crystal display applications of automotive products (such as center consoles, instrument panels, etc.), they often require the layout of non-rectangular display areas, but the effective display area of existing liquid crystal displays cannot achieve this goal.

In view of this, how to design a new liquid crystal display structure, especially to improve the design of the current effective display area, so as to eliminate the above-mentioned defects and deficiencies, is an urgent task to be solved by relevant technical personnel in the industry.

Contents of the invention

Aiming at the limitation caused by the shape of the display area of the liquid crystal display in the prior art, the present invention provides a novel liquid crystal display based on the arrangement structure of the effective display area.

According to one aspect of the present invention, a liquid crystal display is provided, comprising:

An effective display area, including a plurality of gate lines, a plurality of source lines and a plurality of signal transfer lines arranged alternately, wherein the gate lines are parallel to each other and perpendicular to the source lines, and the signal transfer lines are wiring parallel to each other and perpendicular to the gate lines;

a gate driver, including a plurality of first terminals electrically connected to corresponding signal transition lines; and

a source driver, including a plurality of second terminals electrically connected to corresponding source lines,

Wherein, the effective display area is stepped, the gate driver and the source driver are respectively arranged on the parallel sides of the effective display area, and each gate line is connected to the corresponding signal transfer line through a transfer The pad is electrically connected so that the gate line receives a gate driving signal from the gate driver.

In one embodiment, the gate lines are disposed on a first metal layer, the source lines are disposed on a second metal layer, the signal transition lines are disposed on a third metal layer, and the second The metal layer electrically insulates the first metal layer and the third metal layer, and one end of the transfer pad is located on the first metal layer and the other end is located on the third metal layer.

In one embodiment, in the effective display area, the connection lines between the transfer pads in different rows and columns are straight lines.

In one embodiment, in the effective display area, the connection lines between the transfer pads in different rows and columns are in a zigzag shape.

In one embodiment, the stepped effective display area includes a first bottom and a second bottom parallel to each other, the gate driver is located on one side of the first bottom, and the source driver is located on One side of the second bottom edge, and the length of the first bottom edge is shorter than the length of the second bottom edge.

According to another aspect of the present invention, a liquid crystal display is provided, comprising:

An effective display area, including a plurality of gate lines, a plurality of source lines and a plurality of signal transfer lines arranged alternately, wherein the gate lines are parallel to each other and perpendicular to the source lines, and the signal transfer lines are wirings parallel to each other and perpendicular to the gate lines; and

A drive module, including a plurality of output terminals, respectively electrically connected to corresponding signal transfer lines and corresponding source lines,

Wherein, the effective display area is stepped, and each gate line is electrically connected to the corresponding signal transfer line through a transfer pad, so that the gate line receives the gate signal from the driving module. drive signal.

In one embodiment, the gate lines are disposed on a first metal layer, the source lines are disposed on a second metal layer, the signal transition lines are disposed on a third metal layer, and the second The metal layer electrically insulates the first metal layer and the third metal layer, and one end of the transfer pad is located on the first metal layer and the other end is located on the third metal layer.

In one embodiment, in the effective display area, the connection lines between the transfer pads in different rows and columns are straight lines.

In one embodiment, in the effective display area, the connection lines between the transfer pads in different rows and columns are in a zigzag shape.

In one of the embodiments, the stepped effective display area includes a first bottom and a second bottom parallel to each other, the driving module is located on one side of the second bottom, and the first The length of the bottom side is smaller than the length of the second bottom side.

Adopting the liquid crystal display of the present invention, its effective display area includes a plurality of gate lines, a plurality of source lines and a plurality of signal transfer lines arranged alternately, the gate lines are perpendicular to the source lines and signal transfer lines, and the gate driver A plurality of first terminals are respectively connected to corresponding signal transfer lines, a plurality of second terminals of the source driver are respectively connected to corresponding source lines, and each gate line is connected to corresponding signal transfer lines through a transfer pad. conduction, so that the gate line receives the gate driving signal from the gate driver. Compared with the prior art, the effective display area of the present invention is stepped, and the gate driver and source driver are arranged on its parallel sides, so that the signal wiring does not need to occupy the space on the left and right sides of the panel, which can further improve the effect of narrow borders. In addition, the arrangement of the effective display areas does not need to add a new special process to realize the display effect of the trapezoidal picture.

Description of drawings

Readers will have a clearer understanding of various aspects of the present invention after reading the detailed description of the present invention with reference to the accompanying drawings. in,

FIG. 1 shows a schematic diagram of an arrangement of effective display areas of a liquid crystal display in the prior art;

Figure 2 shows a schematic diagram of the arrangement of the effective display area of a liquid crystal display according to an embodiment of the present invention;

Figure 3 shows an alternative embodiment of the liquid crystal display of Figure 2;

FIG. 4 shows a schematic diagram of an arrangement of effective display areas of a liquid crystal display according to another embodiment of the present invention; and

FIG. 5 shows an alternative embodiment of the liquid crystal display of FIG. 4 .

Detailed ways

In order to make the technical content disclosed in this application more detailed and complete, reference may be made to the drawings and the following various specific embodiments of the present invention, and the same symbols in the drawings represent the same or similar components. However, those skilled in the art should understand that the examples provided below are not intended to limit the scope of the present invention. In addition, the drawings are only for schematic illustration and are not drawn according to their original scale.

The specific implementation manners of various aspects of the present invention will be further described in detail below with reference to the accompanying drawings.

FIG. 1 shows a schematic diagram of an arrangement of effective display areas of a liquid crystal display in the prior art. Referring to FIG. 1, a conventional liquid crystal display generally includes a display panel. The active area 10 of the display panel has a plurality of gate lines 102 (gate lines), and a plurality of data lines 104 arranged alternately with these gate lines 102 . Wherein, the gate lines 102 are arranged along the horizontal direction, and the data lines 104 are arranged along the vertical direction. In addition, a thin film transistor is further included at the intersection of the data line 104 and the gate line 102 . Wherein, the gate of the TFT is electrically connected to the gate line 102 , and the source of the TFT is electrically connected to the data line 104 .

In order to improve the driving capability of the gate pulse signal and the data voltage signal, the display panel is further equipped with a gate driver (gate driver) 12 and a source driver (source driver) 14 . The gate driver 12 includes a plurality of output terminals T1 to sequentially supply gate driving signals to the gate lines 102 . The source driver 14 includes a plurality of output terminals T2 to supply data voltage signals to the data lines 104 .

However, the above-mentioned effective display area 10 is a rectangle, and the gate drive signal and the source drive signal are respectively driven by different drivers (such as a gate driver and a source driver), and the gate driver and the source driver are respectively arranged on two adjacent sides of the rectangle. , which is difficult to meet the layout requirements of the non-rectangular display area, and the arrangement structure is also contrary to the goal of narrowing the frame of the display panel.

FIG. 2 shows a schematic diagram of an arrangement of effective display areas of a liquid crystal display according to an embodiment of the present invention. Referring to FIG. 2 , the liquid crystal display of the present invention includes an active display area 20 , a gate driver 22 and a source driver 24 .

In detail, the effective display area 20 includes a plurality of gate lines 202 , a plurality of source lines 204 and a plurality of signal transfer lines (Signal Transfer Lines) 206 arranged alternately. Wherein, the gate lines 202 are arranged along the horizontal direction, and the source lines 204 and the signal transfer lines 206 are arranged along the vertical direction. That is, the gate lines 202 are parallel to each other and perpendicular to the source lines 204 , and the signal transfer lines 206 are parallel to each other and perpendicular to the gate lines 202 . Compared with the prior art, the effective display area 20 of the present invention is stepped, and the gradient on both sides can be changed according to different arrangements of pixels.

The gate driver 22 includes a plurality of first terminals T1 , and the first terminals T1 are respectively electrically connected to corresponding signal transition lines 206 . The source driver 24 includes a plurality of second terminals T2 electrically connected to corresponding source lines 204 . Moreover, the gate driver 22 and the source driver 24 are respectively arranged on parallel sides of the effective display area 20, and each gate line 202 is electrically connected to the corresponding signal transfer line 206 through a transfer pad (transfer pad) , the transfer pad is marked with a character P in the figure, so that the gate line 202 receives the gate driving signal from the gate driver 22 . It can be seen from FIG. 2 that in the effective display area 20 , the connecting lines between the transfer pads P in different rows and columns are approximately straight lines.

In a specific embodiment, the gate line 202 is disposed on a first metal layer (M1), the source line 204 is disposed on a second metal layer (M2), and the signal transfer line 206 is disposed on a third metal layer (M3). . The second metal layer electrically insulates the first metal layer and the third metal layer, and one end of the transfer pad P is located on the first metal layer and the other end is located on the third metal layer, so as to transfer the gate driving signal from the gate driver 22 to the third metal layer. Connect to the corresponding gate line.

In a specific embodiment, the stepped effective display area 20 includes a first bottom L1 and a second bottom L2 parallel to each other, the gate driver 22 is located on the side of the first bottom L1, and the source driver 24 is located on the second bottom. side of the side L2, and the length of the first bottom side L1 is smaller than the length of the second bottom side L2. That is, the source driver 24 is located on the long side, and the gate driver 22 is located on the short side.

FIG. 3 shows an alternative embodiment of the liquid crystal display of FIG. 2 . Comparing FIG. 3 with FIG. 2 , the main difference is that, in the embodiment of FIG. 3 , the connection lines between transfer pads P in different rows and different columns in the effective display area 20 are approximately zigzag. . Those skilled in the art should understand that, in other embodiments, the connection lines between the transfer pads P may also be other shapes than straight line and zigzag. However, it can also be seen from FIG. 2 and FIG. 3 that no matter what the shape of the connection between the transfer pads P is, there is only one transfer pad P on the same gate line. P is electrically connected to the corresponding signal transfer line; or, on the same signal transfer line, there is only one transfer pad P, through which the gate drive signal from the gate driver is transferred to the corresponding the gate line.

FIG. 4 shows a schematic diagram of an arrangement of effective display areas of a liquid crystal display according to another embodiment of the present invention. Referring to FIG. 4 , the liquid crystal display of the present invention includes an effective display area 30 and a driving module 32 . For example, the driving module 32 is an integrated chip, which has the driving functions of the gate driver and the source driver.

In detail, the effective display area 30 includes a plurality of gate lines 302 , a plurality of source lines 304 and a plurality of signal transfer lines (Signal Transfer Lines) 306 arranged alternately. Wherein, the gate lines 302 are arranged along the horizontal direction, and the source lines 304 and the signal transfer lines 306 are arranged along the vertical direction. That is, the gate lines 302 are parallel to each other and perpendicular to the source lines 304 , and the signal transfer lines 306 are parallel to each other and perpendicular to the gate lines 302 . Compared with the prior art, the effective display area 30 of the present invention is stepped, and the gradient on both sides can be changed according to different arrangements of pixels.

The driving module 32 includes a plurality of output terminals, and each output terminal is electrically connected to a corresponding signal transfer line 306 and a corresponding source line 304 . Wherein, each gate line 302 is electrically connected to the corresponding signal transfer line 306 through a transfer pad (transfer pad), and the transfer pad is marked with a character P in the figure, so that the gate line 302 receives A gate drive signal from the drive module 32 . It can be seen from FIG. 4 that in the effective display area 30 , the connecting lines between the transfer pads P in different rows and columns are approximately straight lines.

In a specific embodiment, the gate line 302 is disposed on a first metal layer, the source line 304 is disposed on a second metal layer, and the signal transfer line 306 is disposed on a third metal layer, and the second metal layer is electrically insulated from the first metal layer. A metal layer and a third metal layer, one end of the transfer pad P is located on the first metal layer and the other end is located on the third metal layer.

In a specific embodiment, the stepped effective display area 30 includes a first bottom edge L1 and a second bottom edge L2 parallel to each other, the driving module 32 is located on the side of the second bottom edge L2, and the first bottom edge L1 The length is less than the length of the second base L2.

FIG. 5 shows an alternative embodiment of the liquid crystal display of FIG. 4 . Comparing FIG. 5 with FIG. 4 , the main difference is that, in the embodiment of FIG. 5 , the connection lines between transfer pads P in different rows and different columns in the effective display area 30 are approximately zigzag. . Those skilled in the art should understand that, in other embodiments, the connection lines between the transfer pads P may also be other shapes than straight line and zigzag.

Adopting the liquid crystal display of the present invention, its effective display area includes a plurality of gate lines, a plurality of source lines and a plurality of signal transfer lines arranged alternately, the gate lines are perpendicular to the source lines and signal transfer lines, and the gate driver A plurality of first terminals are respectively connected to corresponding signal transfer lines, a plurality of second terminals of the source driver are respectively connected to corresponding source lines, and each gate line is connected to corresponding signal transfer lines through a transfer pad. conduction, so that the gate line receives the gate driving signal from the gate driver. Compared with the prior art, the effective display area of the present invention is stepped, and the gate driver and source driver are arranged on its parallel sides, so that the signal wiring does not need to occupy the space on the left and right sides of the panel, which can further improve the effect of narrow borders. In addition, the arrangement of the effective display areas does not need to add a new special process to realize the display effect of the trapezoidal picture.

Hereinbefore, specific embodiments of the present invention have been described with reference to the accompanying drawings. However, those skilled in the art can understand that without departing from the spirit and scope of the present invention, various changes and substitutions can be made to the specific embodiments of the present invention. These changes and substitutions all fall within the scope defined by the claims of the present invention.

Claims (10)

1. a liquid crystal display, is characterized in that, described liquid crystal display comprises: An effective display area, including a plurality of gate lines, a plurality of source lines and a plurality of signal transfer lines arranged alternately, wherein the gate lines are parallel to each other and perpendicular to the source lines, and the signal transfer lines are wiring parallel to each other and perpendicular to the gate lines; a gate driver, including a plurality of first terminals electrically connected to corresponding signal transition lines; and a source driver, including a plurality of second terminals electrically connected to corresponding source lines, Wherein, the effective display area is stepped, the gate driver and the source driver are respectively arranged on the parallel sides of the effective display area, and each gate line is connected to the corresponding signal transfer line through a transfer The pad is electrically connected so that the gate line receives a gate driving signal from the gate driver. 2. The liquid crystal display according to claim 1, wherein the gate lines are disposed on a first metal layer, the source lines are disposed on a second metal layer, and the signal transfer lines are disposed on a The third metal layer, the second metal layer electrically insulates the first metal layer and the third metal layer, one end of the transfer pad is located on the first metal layer and the other end is located on the third metal layer layer. 3 . The liquid crystal display according to claim 1 , wherein, in the effective display area, the connecting lines between the transfer pads in different rows and different columns are straight lines. 4 . 4 . The liquid crystal display according to claim 1 , wherein, in the effective display area, the connecting lines between the transfer pads in different rows and different columns are in a zigzag shape. 5. The liquid crystal display according to claim 1, wherein the stepped effective display area comprises a first bottom side and a second bottom side parallel to each other, and the gate driver is located at the first bottom side On one side of the side, the source driver is located on the side of the second bottom side, and the length of the first bottom side is smaller than the length of the second bottom side. 6. A liquid crystal display, characterized in that the liquid crystal display comprises: An effective display area, including a plurality of gate lines, a plurality of source lines and a plurality of signal transfer lines arranged alternately, wherein the gate lines are parallel to each other and perpendicular to the source lines, and the signal transfer lines are wirings parallel to each other and perpendicular to the gate lines; and A drive module, including a plurality of output terminals, respectively electrically connected to corresponding signal transfer lines and corresponding source lines, Wherein, the effective display area is stepped, and each gate line is electrically connected to the corresponding signal transfer line through a transfer pad, so that the gate line receives the gate signal from the driving module. drive signal. 7. The liquid crystal display according to claim 6, wherein the gate lines are disposed on a first metal layer, the source lines are disposed on a second metal layer, and the signal transfer lines are disposed on a The third metal layer, the second metal layer electrically insulates the first metal layer and the third metal layer, one end of the transfer pad is located on the first metal layer and the other end is located on the first metal layer Three metal layers. 8 . The liquid crystal display according to claim 6 , wherein, in the effective display area, the connecting lines between the transfer pads in different rows and different columns are straight lines. 9 . The liquid crystal display according to claim 6 , wherein, in the effective display area, the connection lines between transfer pads in different rows and columns are in a zigzag shape. 10 . 10. The liquid crystal display according to claim 6, wherein the stepped effective display area includes a first bottom side and a second bottom side parallel to each other, and the driving module is located at the second bottom side one side, and the length of the first bottom side is less than the length of the second bottom side.