TW201506513A - Display device - Google Patents

Abstract

In order to provide a display device which is capable of display control with a signal input from only one edge side and has a narrow frame region for a matrix liquid crystal display panel, a display device (1), which includes a display panel (11) and drive modules (12G, 12S), has a gate connector (TG) and a source connector (TS) formed on only one edge side (L), and the portions of each shadow of the drive modules generated by light projected on a plane including a display surface (111) are mutually overlapped at a region (P).

Description

Display device

BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to a display device for bonding a plurality of devices for use as a multi-display device, and more particularly to a technique for reducing a joint portion (non-display region).

In recent years, flat panel displays using liquid crystal panels and the like are being enlarged. In particular, for a multi-screen display device used in the field of digital signage, etc., a large number of display devices having a large display area are being joined to each other to form a larger display area.

In such a multi-display device, one large display device can be easily constructed by planarly adjoining a plurality of display devices in a vertical and horizontal direction, but the joint portion between the display devices is also referred to as a grooved portion. The frame of the bezel forms an area where the image cannot be displayed (hereinafter referred to as "non-display area"). Since the non-display area causes the display of the multi-screen display device to appear to be inserted into the grid-like line, there is a problem that the quality of the displayed image is degraded.

Patent Document 1 discloses a configuration in which a display portion and a non-display portion of a peripheral portion of the display portion and the display portion are adjacent to each other, including a video display unit and a non-display unit provided on the outer periphery of the video display unit. The surface is provided with an optical element that enlarges the display portion to the non-display portion, and the range of the non-display portion is narrowed.

In other words, in this technique, the light emitted from the peripheral portion of the image display portion is refracted by the cylindrical lens covering the peripheral portion, thereby guiding the light to the non-display portion side. Not in the non-display section.

Fig. 15 is a view showing the configuration of a display panel 1011 of a conventional liquid crystal display device of the prior art, wherein (a) shows the overall configuration, and (b) shows a configuration of pixels. As shown in FIG. 15( a ), the display panel 1011 mainly includes a display portion 1111 , a source control terminal 1112 , and a gate control terminal 1113 . Further, as shown in FIG. 15(b), the pixel E constituting the display portion 1111 includes a switching element S including a TFT (Thin Film Transistor) and a liquid crystal capacitor Clc, which is self-connected to the gate of the switching element S. The gate signal of the gate control line is controlled to be turned on/off, and the source signal supplied from the source control line connected to the source of the switching element S is charged to the liquid crystal capacitor Clc connected to the drain of the switching element S. , thereby performing display control.

Generally, in the case of a display device, the source control terminal 1112 is disposed on the long side of the display panel 1011, and the gate control terminal 1113 is disposed on the short side of the display panel 1011.

Fig. 16 is a view showing the configuration of a drive module 1012 of the prior art, (a) is a plan view, and (b) is a cross-sectional view.

As shown in FIG. 16(a), the drive module 1012 includes an input terminal Tin and an output terminal Tout at its end, and a drive circuit Dr as a source drive circuit or a gate drive circuit at the center.

Further, as shown in FIG. 16(b), the drive module 1012 is formed by laminating the base material 121, the wiring 122, and the solder resist 123, and the drive circuit Dr is fixed by the resin 124.

Fig. 17 is a view showing the configuration of the wiring of the drive module 1012 of the prior art connected to the drive circuit Dr. As shown in FIG. 17, the input line Lin is taken out from the input terminal Tin, and the output line Lout is mainly drawn from the other three sides of the drive circuit Dr and extends to the output terminal Tout.

Since the drive module 1012 as described above is connected to the source control terminal 1112 and the gate control terminal 1113 of the display panel 1011 shown in FIG. 15, the end portion of the display panel 1011 on which the connection is formed becomes large. Moreover, such an end portion becomes a non-display area.

Therefore, when the display device is used as a part of the multi-display device, it is necessary to minimize the end portion of the display device that becomes the non-display area.

FIG. 18 is a view showing a configuration described in Patent Document 2. As shown in FIG. 18, the display panel (liquid crystal panel) 2001 disclosed in Patent Document 2 includes a plurality of data line electrodes and a plurality of scanning line electrodes which intersect each other and form a matrix portion of the pixel portion at the intersection portion. Moreover, the mounting package 2021 is connected to the edge part of one side of the glass substrate 2001a of the display panel 2001. Further, on the insulating film substrate 2022 in the package 2021, an LSI (Large Scale Integration) wafer 2024 for driving the data line electrodes and driving are sequentially mounted from the side close to the display panel 2001. The LSI wafer 2023 of the line electrode is scanned. Further, the wiring portion 2028b is fixedly disposed on the film substrate 2022 so as to pass through the lower surface (mounting region) of the LSI wafer 2023 on the film substrate 2022, and the wiring portion 2028b includes the connection terminal group 2027 and the LSI wafer 2024. Multiple wires.

That is, the configuration of Patent Document 2 can be configured as follows. When used in a multi-display device, in order to reduce the non-display area, the gate driving circuit is mounted on the panel and bent to the flexible package. On the back side, or the output signal of the gate driving circuit, the source driving circuit and the gate driving circuit are mounted on one side of the panel.

[Previous Technical Literature] [Patent Literature]

[Patent Document 1] Japanese Laid-Open Patent Publication No. 2009-162999 (published on July 23, 2009)

[Patent Document 2] Japanese Laid-Open Patent Publication No. 2002-244580 (published on August 30, 2002)

However, the prior art as described above has the following problems.

First, in the configuration disclosed in Patent Document 1, the non-display area cannot be eliminated.

The reason for this is that the active signal and the gate signal are input from different sides of the display panel of the document. According to this configuration, in the display device of the document, the gate drive circuit for generating the gate signal must be mounted on the side of the input gate signal, and the gate control terminal for connecting the gate drive circuit must be provided on the side. And connect the gate drive circuit.

Fig. 19 is a view showing the configuration of a display device 3001 of the prior art. As shown in FIG. 19, the source driving module 3012S is connected to one side of the display panel 3011. Further, a gate driving module 3012G is connected to the other side of the display panel 3011. Further, an input substrate 3013 is connected to an end portion of the source driving module 3012S on the side where the display panel 3011 is not connected.

FIG. 20 is a view showing a configuration of a display unit 3111 provided in the display panel 3011 of the prior art. As shown in FIG. 20, on the display unit 3111, the gate control line Lg is orthogonal to the source control line Ls. According to this configuration, the source control terminal Ts is present on one side of the display unit 3111, and the gate control terminal Tg is present on the other two sides of the display unit 3111.

Fig. 21 is a view showing the configuration of the display panel 3011 of the prior art. As a result of the configuration shown in FIG. 21, the display unit 3111 forms a frame region 3112 on three sides of the display portion 3111 (display panel 3011) corresponding to the source control terminal Ts and the gate control terminal Tg.

That is, for example, even if the source drive circuit and the gate drive circuit are made of a flexible material, the connection portion (frame region 3112) is necessary, so that it is difficult to eliminate the three non-display portions.

In the configuration disclosed in Patent Document 2, the gate driving circuit and the source driving circuit are mounted on the same side of the display panel, and the non-display portion is intended to be reduced. However, since wiring is necessary from the side of the input gate signal to the side where the source driver circuit is mounted, the non-display portion cannot be eliminated.

That is, in the configuration disclosed in Patent Document 2, it is difficult to eliminate non-display areas on at least two sides of the display panel.

In view of the above problems, an object of the present invention is to provide a display device which is incorporated in a matrix type liquid crystal display panel and can be input by signals from only one side. Display control is performed and the width of the bezel area can be narrowed.

A display device according to an aspect of the present invention includes a display panel including a display surface, a first terminal, and a second terminal, wherein the display surface is applied to a first signal applied to a signal line extending in a first direction, and applied And displaying, by the second signal of the signal line extending in the second direction perpendicular to the first direction, the first signal is input to the first signal, and the second terminal is input to the second signal; the first driving mode a first terminal connected to the first terminal and generating the first signal; and a second driving module connected to the second terminal to generate the second signal; and the first terminal and the second terminal It is formed only on one side of the display panel, and at least a part of each of the first driving module and the second driving module projected onto a plane including the display surface overlaps with each other.

Moreover, a display device according to another aspect of the present invention includes a display panel including a display surface, a first terminal, and a second terminal, wherein the display surface is applied to a first signal of a signal line extending in the first direction. And displaying, by the second signal applied to the signal line extending in the second direction perpendicular to the first direction, the first signal is input to the first signal, and the second terminal is input to the second signal; a drive module connected to the first terminal and generating the first signal; and a second drive module connected to the second terminal to generate the second signal; and the first terminal and the first The two terminals are formed only in a region on the display panel on one side of the display panel, and are arranged in a direction intersecting the one side in the region.

According to each aspect of the present invention, in the matrix type liquid crystal display panel, display control can be performed by signal input from only one side, and the width of the frame region can be narrowed.

1‧‧‧ display device

1a‧‧‧Display device

1b‧‧‧ display device

11‧‧‧ display panel

11b‧‧‧Display device

12G‧‧‧Gate drive module (1st drive module)

12Gs‧‧‧Gate Drive Module Group (Drive Module Group)

12S‧‧‧Source Drive Module (2nd Drive Module)

12Ss‧‧‧Source Drive Module Group (Drive Module Group)

13‧‧‧Input substrate

111‧‧‧ Display surface

112‧‧‧Border area (area)

121‧‧‧Substrate

122‧‧‧Wiring

123‧‧‧ solder resist

124‧‧‧Resin

131‧‧‧ Controller

1011‧‧‧ display panel

1012‧‧‧Drive Module

1111‧‧‧Display Department

1112‧‧‧Source control terminal

1113‧‧‧ gate control terminal

2001‧‧‧Display panel (liquid crystal panel)

2001a‧‧‧Glass substrate

2021‧‧‧Installation package

2022‧‧‧membrane substrate

2023‧‧‧ LSI chip

2024‧‧‧ LSI chip

2027‧‧‧Terminal group

2028b‧‧‧Wiring Department

3001‧‧‧ display device

3011‧‧‧ display panel

3012G‧‧‧Gate Drive Module

3012S‧‧‧Source Drive Module

3013‧‧‧Input substrate

3111‧‧‧Display Department

3112‧‧‧Border area

3131‧‧‧ Controller

A‧‧‧ main part

B‧‧‧ main part

C‧‧‧ main part

CL‧‧‧ center axis

Clc‧‧ liquid crystal capacitor

CP‧‧‧Contact

CP_in‧‧‧ input terminal

Dr‧‧‧ drive circuit

E‧‧ ‧ pixels

f‧‧‧Process

GD‧‧ ‧ gate driver

GND‧‧‧ ground wire

L‧‧‧ side

Lb‧‧‧ gate control branch line

Lg‧‧‧ gate control line (signal line extending along the first direction)

Lg_cas‧‧‧gate cascading wiring (connecting trunk)

Lg_ctrA‧‧‧ gate driver control signal input line

Lg_ctrB‧‧‧ gate driver control signal input line

Lg_ctrC‧‧‧ gate driver control signal input line

Lg_in‧‧‧ gate input wiring

Lg_out‧‧‧ gate wiring

Lin‧‧‧ input line

Lmix‧‧‧ mixed signal line

Lout‧‧‧ output line

Ls‧‧‧ source control line (signal line extending along the 2nd direction)

Ls_cas‧‧‧Source Cascade Wiring (Connecting Trunk)

Ls_ctr‧‧‧Source driver control signal input line

Ls_out‧‧‧Source wiring

Ls_str‧‧‧Source driver start signal input line

Ls_thr‧‧‧ straight wiring (input trunk)

P‧‧‧ area

S‧‧‧Switching elements

SD‧‧‧Source Driver

Tg‧‧‧ gate control terminal (1st terminal)

TG‧‧‧gate connection (first terminal)

TG_in‧‧‧ gate input terminal (relay signal input terminal)

Tin‧‧‧ input terminal

Tout‧‧‧ output terminal

Ts‧‧‧Source control terminal (2nd terminal)

TS‧‧‧Source connection (2nd terminal)

TS_in‧‧‧Source input connection (input terminal)

X‧‧‧ direction

Y‧‧‧ direction

Z‧‧‧ direction

Fig. 1 is a view showing the configuration of a display device according to a first embodiment, (a) is a side view, and (b) The front view.

2 is a view showing a configuration of a display panel provided in the display device shown in FIG. 1, wherein (a) shows the overall configuration, and (b) shows a configuration of a pixel.

Fig. 3 is a view showing a configuration of a control line in a display surface provided in the display panel shown in Fig. 2;

Fig. 4 is a view showing the position of a frame area in the display panel shown in Fig. 2.

5 is an enlarged view of a main part of the display device shown in FIG. 1(b), and is a view showing a connection relationship between a display panel, a source driving module, and an input substrate.

6 is an enlarged view of a main part of the display device shown in FIG. 1(b), and is a view showing a connection relationship between a display panel and a gate driving module except for the connection relationship shown in FIG. 5.

7 is an enlarged view of a main portion of FIG. 6, and is a view showing a configuration in which an input signal is relayed to a gate driving module by wiring on a source driving module.

Fig. 8 is a view showing the configuration of a gate wiring and a source wiring in the display device shown in Fig. 1;

Fig. 9 is a side view showing a display device of a variation of the display device shown in Fig. 1.

Fig. 10 is a front elevational view showing the configuration of the display device of the second embodiment.

Figure 11 is an enlarged view of a main part of the display device shown in Figure 10.

Fig. 12 is a view showing a configuration in the case where only the gate driving module is mounted on the main portion shown in Fig. 11.

Fig. 13 is a view showing the configuration of the main portion shown in Fig. 12 and further including the configuration of the source driving module.

Fig. 14 is a view showing the configuration of a display device of a comparative example of the display device shown in Fig. 10.

Fig. 15 is a view showing the configuration of a display panel of a conventional liquid crystal display device of the prior art, wherein (a) shows the overall configuration, and (b) shows a configuration of a pixel.

Fig. 16 is a view showing the configuration of a prior art driving module, (a) is a plan view, and (b) is a cross-sectional view.

Fig. 17 is a view showing the configuration of wiring of a drive module of the prior art connected to a drive circuit.

FIG. 18 is a view showing a configuration described in Patent Document 2.

Fig. 19 is a view showing the configuration of a display device of the prior art.

Fig. 20 is a view showing the configuration of a display unit provided in a display panel of the prior art.

Fig. 21 is a view showing the configuration of a display panel of the prior art.

[Embodiment 1]

Hereinafter, embodiments of the present invention will be described in detail. An embodiment of the present invention will be described below with reference to Figs. 1 to 8 as follows.

<Configuration of Display Device 1>

Fig. 1 is a view showing the configuration of a display device 1 of the present embodiment, wherein (a) is a side view and (b) is a front view. As shown in FIG. 1(a), the display device 1 includes a display panel 11, a gate driving module (first driving module) 12G, a source driving module (second driving module) 12S, and an input substrate 13. As shown in FIG. 1(b), a portion of the shadow driving module 12G and the source driving module 12S projected onto the plane including the display surface 111 (ie, the XY plane) is partially in the region P. Overlapping each other.

According to the above configuration, the display device 1 can be used as a matrix type liquid crystal display panel, and display control can be performed by inputting only the gate signal (first signal) and the source signal (second signal) from one side, and the frame area can be obtained ( The width of the area 112 is narrowed. Hereinafter, each configuration of the display device 1 will be described in detail.

(display panel)

The display panel 11 includes a display surface 111 which is applied to a gate signal of a control line (signal line) extending in the X direction (first direction) and applied to a direction perpendicular to the X direction. The source signal of the following control line (signal line) extending in the Y direction (the second direction) is displayed and controlled; the gate connection portion (first terminal) TG is input with the gate signal; and the source connection portion (the second terminal) And TS is input to the source signal; and the gate connection portion TG and the source connection portion TS are formed only in the frame region 112. In other words, the gate connection portion TG and the source connection portion TS are arranged in the frame region 112 in the Y direction (that is, the direction intersecting the side L).

2 is a view showing a configuration of the display panel 11 included in the display device 1 shown in FIG. 1, wherein (a) shows the overall configuration, and (b) shows the configuration of the pixel E. As shown in FIGS. 1(b) and 2(a), the display panel 11 is divided into a display surface 111 and a frame region 112 in which the gate connection portion TG and the source connection portion TS are formed.

Here, the display surface 111 includes a plurality of source control lines Ls and a plurality of gate control lines Lg. The source control lines Ls are linearly arranged and arranged in parallel with each other. Further, the gate control lines Lg are linearly arranged in parallel with each other and are arranged to be orthogonal to the source control line Ls. Here, the source signal is a signal applied to the source control line Ls, and is a signal indicating a material. Further, the gate signal is a signal applied to the gate control line Lg, and is a signal indicating the display timing. Further, the display surface 111 is composed of a set of pixels E indicated by a broken line frame in FIG. 2(a).

As shown in FIG. 2(b), the pixel E includes a switching element S and a liquid crystal capacitor Clc. Here, the switching element S may be a thin film transistor (TFT, Thin Film Transistor) or the like. Further, the drain of the switching element S is connected to one end of the liquid crystal capacitor Clc. Further, the other end of the liquid crystal capacitor Clc is connected to the ground line GND to be grounded.

Further, a gate control line Lg is connected to the gate of the switching element S. Further, the switching element S is controlled by the gate signal supplied from the gate control line Lg, and the source signal supplied from the source control line Ls connected to the source of the switching element S is charged to the drain connected to the switching element S. Liquid crystal capacitor Clc. Thereby, the display control of the display surface 111 is performed.

Further, the gate control line Lg is branched by the gate control branch line Lb. Specifically, as shown in FIG. 2(a), the gate control branch line Lb is self-gate for every three source control lines Ls. There is one branch of the control line Lg. With this configuration, the gate control branch line Lb is led out to the negative side of the Y-axis in the same manner as the source control line Ls. Therefore, the display panel 11 can perform display control by the gate signal and the source signal input from the side L side.

3 is a view showing a configuration of control lines (source control line Ls, gate control line Lg, and gate control branch line Lb) on the display surface 111 of the display panel 11 shown in FIG. As shown in FIG. 3, in the display surface 111, the source control line Ls extends to the end of the display surface 111, and is connected to the source control terminal (second terminal) Ts. Further, a gate control branch line Lb is branched from the gate control line Lg. Further, the gate control branch line Lb extends to the end of the display surface 111 and is connected to the gate control terminal (first terminal) Tg.

In this manner, the terminals (the source control terminal Ts and the gate control terminal Tg) corresponding to the control lines included in the display surface 111 are disposed on the side L side of the display panel 11, and the gate connection portion TG is formed in the frame region 112. And the source connection unit TS.

4 is a view showing the position of the bezel area 112 in the display panel 11 shown in FIG. 2. As shown in FIG. 4, the bezel area 112 is located on the side L side (the negative side of the Y-axis) of the display panel 11.

That is, the display panel 11 includes a plurality of display panels of the gate control line Lg arranged in parallel with each other and the source control line Ls orthogonal to the gate control line Lg, and includes a branch from the gate control line Lg. a gate control branch line Lb, a source control terminal Ts connected to the source control line Ls, and a gate control terminal Tg connected to the gate control branch line Lb, and having a square shape, a gate control terminal Tg and a source The control terminal Ts is formed only on one side.

According to the above configuration, it is possible to provide a display panel including the control terminals (the gate control terminal Tg and the source control terminal Ts) on only one side.

Further, a drive module as a driver for driving the display panel 11 is connected to the bezel area 112. Hereinafter, the drive module will be described.

(drive module)

The gate driving module 12G is connected to the gate connection portion TG and generates a gate signal. Specifically, in the configuration shown in FIG. 1(a), the gate signal is generated from the gate driver GD by The wiring on the gate drive module 12G is sent to the gate connection portion TG. Further, the source driving module 12S is connected to the source connecting portion TS and generates a source signal. Specifically, in the configuration shown in FIG. 1(a), the source signal is generated by the source driver SD, and is sent to the source connection portion TS by the wiring on the source driver module 12S.

5 is an enlarged view of a main portion A of the display device 1 shown in FIG. 1(b), and shows a connection relationship between the display panel 11, the source driving module 12S, and the input substrate 13. As shown in FIG. 5, a mixed signal line Lmix in which a wiring to which a gate signal is applied and a wiring to which a source signal is applied is drawn in a frame region 112 of the display panel 11. Further, only the wiring that receives the application of the source signal is connected to the source connection portion TS.

Further, the source drive module 12S is connected to the input substrate 13 via a source input connection portion (input terminal) TS_in. Further, the input signal generated by the input substrate 13 is sent to the source driver SD by the wiring on the source driver module 12S. Thereafter, the source driver SD generates the source signal based on the input signal that is sent.

Here, the input signal may also include, for example, an electrical signal used to drive the power supply of the gate driving module 12G and the source driving module 12S, a display data signal, or when generating a gate signal and a source signal. Control signals such as clock signals used.

6 is an enlarged view of a main portion A of the display device 1 shown in FIG. 1(b), and is a view showing a connection relationship between the display panel 11 and the gate driving module 12G in addition to the connection relationship shown in FIG. 5. . As shown in FIG. 6, only the wiring that receives the application of the gate signal is connected to the gate connection portion TG. Further, the gate driving module 12G and the source driving module 12S overlap in the region P, and are connected to the display panel 11 via the gate connecting portion TG.

Here, the central axes CL of the direction in which the gate drive module 12G and the source drive module 12S intersect with the side L (ie, the Y direction) may also coincide. According to this configuration, the wiring of the gate drive module 12G and the source drive module 12S can be arranged to be axisymmetric with respect to the central axis CL, so that optimal wiring can be arranged.

Moreover, the input signal generated by the input substrate 13 can also be used by the source driving module 12S. The trunk line is relayed and sent to the gate driver GD, and the gate driver GD can also generate the gate signal based on the input signal that is sent. Hereinafter, this configuration will be described.

(Composed by relaying signals on the trunk of the driver module)

FIG. 7 is an enlarged view of a main portion B of FIG. 6, and shows a configuration in which an input signal is relayed to the gate driving module 12G by wiring on the source driving module 12S. As shown in FIG. 7 , at least one of the gate driving module 12G and the source driving module 12S may further include: an input terminal CP_in, which is input with an input signal; and a through wiring (input trunk) Ls_thr. The input signal is relayed to another drive module. According to this configuration, a signal is input from the input terminal CP_in of the source drive module 12S, and the signal is relayed by the through wiring Ls_thr, whereby the gate drive module 12G is not connected to the substrate that generates the input signal for generating the gate signal. The input terminal can also accept the input of this signal.

In other words, the source drive module 12S inputs an input signal for generating a gate signal and an input signal for generating a source signal from the input terminal CP_in connected to the input substrate 13. Further, the input signal for generating the gate signal input from the input terminal CP_in is relayed by the through wiring Ls_thr, and is output to the gate input wiring Lg_in. Thereafter, the gate driving module 12G processes the gate signal generating input signal by the gate driver GD, and outputs the generated gate signal to the gate wiring Lg_out. Further, the source driving module 12S processes the source signal generating input signal by the source driver SD, and outputs the generated source signal to the source wiring Ls_out. Then, the gate signal and the source signal are output to the mixed signal line Lmix. In other words, the gate signal generation input signal is sent in the order of the input substrate 13, the source drive module 12S (straight line Ls_thr), the gate input line Lg_in, and the gate drive module 12G. In other words, the gate signal generation input signal is sent out in the flow indicated by f in Fig. 7.

Further, the through wiring Ls_thr and the gate input wiring Lg_in are electrically connected by the contact CP, and are fixed in position.

Further, in the configuration shown in FIG. 7, the input terminal CP_in and the through wiring Ls_thr are It is disposed in the source drive module 12S, but is not limited to this configuration, and may be disposed in the gate drive module 12G. In this case, the source drive module 12S can accept the input of the signal even if it does not have an input terminal connected to the substrate for generating the input signal for generating the source signal.

(The ratio of the number of gate wirings to the number of source wirings)

FIG. 8 is a view showing the configuration of the gate wiring Lg_out and the source wiring Ls_out in the display device 1 shown in FIG. 1. As shown in FIG. 8, the display device 1 includes a plurality of gate wirings Lg_out connected to the gate driving module 12G, and a plurality of source wirings Ls_out connected to the source driving module 12S. Further, the display device 1 includes a plurality of (m) gate control terminals Tg (see FIG. 3) corresponding to the gate wirings Lg_out, and includes a plurality of (n) source control terminals corresponding to the source wirings Ls_out. Ts (refer to Fig. 3) (m, n are integers).

According to this configuration, the gate control terminal Tg and the source control terminal Ts can be regularly arranged by the arrangement of the fixed ratio (m: n), and the wiring connected to each terminal can be regularly arranged. Assuming that the terminals and the wirings are irregularly arranged, the arrangement is wasteful, and the area of the bezel area is increased, which is related to the increase in cost of the display device 1. However, according to the above configuration, waste in such a configuration can be suppressed, and the cost of the display device 1 can be suppressed from becoming high.

Here, the source control terminal Ts is formed in three for each gate control terminal Tg. According to this configuration, the display device 1 can perform color display by, for example, three primary colors of RGB. Further, the source control terminal Ts may be formed in six for each gate control terminal Tg. According to this configuration, the display device 1 can perform color display in higher definition and higher speed by the three primary colors of RGB.

Further, the present invention is not limited to this configuration, and when the display device 1 expresses color by four primary colors, or changes the aspect ratio of the display panel 11 of the display device 1 (that is, the source wiring Ls_out and the gate wiring Lg_out) In the case of the number of bars, the number n of the source control terminals Ts with respect to the m gate control terminals Tg can be appropriately changed.

Moreover, the gate driving module group 12Gs or the source driving module group 12Ss may be a shift register that is connected by cascade connection.

<Action and Effect of Display Device 1>

According to the above configuration, since the gate connection portion TG and the source connection portion TS are formed only on the side L side of the display panel 11, the display device 1 can input the gate signal and the source signal only from the side L side. Perform display control.

Here, a portion of the display device 1 that cannot be used as the display surface 111 is referred to as a frame region. Further, since the gate drive module 12G and the source drive module 12S cannot be used as the display surface 111, they become part of the frame region 112.

According to the above configuration, at least a part of the shadow formed by the gate driving module 12G projected onto the plane including the display surface 111 overlaps with at least a part of the shadow formed by the source driving module 12S projected onto the plane (existing In the region P), the area occupied by the gate driving module 12G and the source driving module 12S in the display device 1 (that is, the area of the region P) when viewed from the Z direction intersecting the display surface 111 is The shadow of the gate driving module 12G is small when the shadow of the source driving module 12S does not overlap (the region P is not present). That is, the frame area of the display device 1 can be narrowed.

Then, the display device 1 can be used for a matrix type liquid crystal display panel, and display control can be performed by inputting only the gate signal and the source signal from one side, and the width of the frame region can be narrowed.

[variation]

A modification of the present invention will be described based on Fig. 9 as follows. It is to be noted that the same reference numerals are given to members having the same functions as those of the members described in the above embodiments, and the description thereof will be omitted.

Fig. 9 is a side view showing the display device 1a of a variation of the display device 1 shown in Fig. 1. Here, the display device 1a has the same configuration as the display device 1, but the difference is that, as shown in FIG. 9, at least one of the gate driving module 12G and the source driving module 12S is included and included. The display surface of the display panel 11 is curved in the direction in which the planes intersect (the negative direction of the Z axis). According to the above configuration, one driving module does not interfere with another driving module. The width of the bezel area of the display panel 11 can be narrowed.

Further, the input substrate 13 may be disposed on the back side of the display panel 11 by bending the source driving module 12S on the input substrate 13 side. According to the above configuration, the thickness of the display device 1 can be reduced.

[Embodiment 2]

Another embodiment of the present invention will be described with reference to Figs. 10 to 14 as follows. In the following description, members having the same functions as those of the members described in the above embodiments are denoted by the same reference numerals, and their description will be omitted.

<Composition of transmission signals between drive modules>

Fig. 10 is a front view showing the configuration of the display device 1b of the embodiment. The display device 1b has the same configuration as the display device 1, and further includes: a gate driving module group (driving module group) 12Gs, which is formed by connecting a plurality of gate driving modules 12G; and a gate cascade wiring (Connecting trunk) Lg_cas, which relays signals between the connected gate drive modules 12G. Further, the display device 1b includes a source drive module group (drive module group) 12Ss connected by a plurality of source drive modules 12S, and a source cascade connection (connected trunk) Ls_cas. The connected source drive module 12S relays signals.

Here, the source driving module 12S at both ends of the source driving module group 12Ss is input to the gate driver control signal via the gate driver control signal input line Lg_ctrA, and the signal input line Ls_str is started via the source driver. , is input to the source driver start signal. Further, the gate drive module 12G of the right end (the positive end of the X-axis) of the gate drive module group 12Gs is input to the gate driver control signal via the gate driver control signal input lines Lg_ctrB and Lg_ctrC. Further, the source drive module 12S included in the source drive module group 12Ss is input with the source driver control signal via the source driver control signal input line Ls_ctr from the side connected to the input substrate 13.

Furthermore, the input substrate 13 includes a controller 131 connected to the gate driver control signal input line Lg_ctrA, the source driver control signal input line Ls_ctr, and The source driver starts signal input line Ls_str and generates a gate driver control signal, a source driver control signal, and a source driver start signal.

Here, the gate driver control signal may also include, for example, a start signal indicating the start of the process, or an electrical signal used to drive the power supply of the gate drive module 12G, or a clock signal used to generate the gate signal. And other control signals.

Further, the source driver control signal may include, for example, an electric signal used to drive the power supply of the source drive module 12S, or a display data signal, or a control signal such as a clock signal used to generate the source signal.

Further, the gate driving module 12G has a function of transmitting the input signal to the other gate driving modules connected thereto. Therefore, by inputting signals to at least one gate driving module included in the gate driving module group 12Gs, all the gate driving modules included in the gate driving module group 12Gs can receive the signal. Input.

(Connecting the wiring of the drive module)

Figure 11 is an enlarged view of a main portion C of the display device 1b shown in Figure 10. As shown in FIG. 11, the source wiring Ls_out is arranged in n (n is 3 or 6) with respect to one gate wiring Lg_out, and the gate wiring Lg_out is closer to the side L side of the display panel 11 than the source wiring Ls_out (Y The negative side of the shaft extends).

Further, the gate driver control signal input line Lg_ctrC connecting the gate driving module 12G and the source driving module 12S is disposed at the right end of the frame region 112 (the end in the positive direction of the X axis). Moreover, the gate cascade wiring Lg_cas connecting the gate driving module 12G and the other gate driving modules is disposed between the regions of the frame region 112 where the gate driving module 12G is mounted.

(connection of drive modules)

Fig. 12 is a view showing a configuration in a case where only the gate drive module 12G is attached to the main portion C shown in Fig. 11. As shown in FIG. 12, the gate input terminal (relay signal input terminal) TG_in is disposed in the gate drive module 12G at both ends of the gate drive module group 12Gs, and is connected to the gate driver control signal input line Lg_ctrC. , via source as described below The drive module 12S receives an input signal from the input substrate 13. Moreover, the gate driving module 12G shares the input signal with the other gate driving modules 12G included in the gate driving module group 12Gs, and generates a signal indicating the display timing by the gate driver GD (refer to FIG. 1). And send this signal to the gate wiring Lg_out.

Fig. 13 is a view showing a configuration in which the main portion C shown in Fig. 12 is further mounted with the source driving module 12S. As shown in FIG. 13, the source drive module 12S has one end (the positive direction of the Y-axis) connected to the display panel 11, and the other end (the negative direction of the Y-axis) is connected to the input substrate 13. Further, the gate driver control signal input line Lg_ctrB included in the source driver module 12S is connected to the gate driver control signal input line Lg_ctrC.

Thereby, the gate driver control signal is controlled by the input substrate 13 (gate driver control signal input line Lg_ctrA (refer to FIG. 10)), the source driver module 12S (gate driver control signal input line Lg_ctrB), and the gate driver control. The sequence of the gate drive module 12G of the signal input line Lg_ctrC and the right end (the end in the positive direction of the X-axis) is sent out.

Further, the gate driver control signal input line Lg_ctrB is formed on the source driving module 12S, or may be the same as the above-described through wiring Ls_thr.

<Effects of the embodiment>

According to the above configuration, a signal is input from the gate input terminal TG_in of the one gate driving module 12G, and the signal is relayed by the gate cascade wiring Lg_cas, whereby the other gate driving module 12G can be connected via The gate drive module 12G accepts the input of the signal. Thereby, it is not necessary to use a wiring branch for inputting each signal for each of the gate driving modules 12G.

Furthermore, in the present embodiment, the gate driving module at the right end of the gate driving module group 12Gs receives the input of a signal, but the configuration is not limited thereto. For example, when the display panel 11 is divided and the display control is performed, the gate driving module disposed at the divided position can also accept the input of the signal, and the gate driving module connected to the divided display panel. The position of the gate drive module that relays the signal to different directions and accepts the input of the signal There is no limit.

(Comparative example)

Fig. 14 is a view showing the configuration of a display device 11b of a comparative example of the display device 1b shown in Fig. 10. As shown in FIG. 14, the display device 11b includes a display panel 3011, a gate driving module 3012G, a source driving module 3012S, and an input substrate 3013. Furthermore, the input substrate 3013 includes a controller 3131 connected to the gate driving module 3012G and the source driving module 3012S.

The display device 11b includes a plurality of gate drive modules 3012G on one side of the display panel 3011 (the side on the positive side of the X-axis), and a plurality of source drives on the other side (the side on the negative side of the Y-axis). Module 3012S. Therefore, the bezel area 3112 is extended to both sides of the display panel, and has a problem that the display surface is narrowed.

However, the above display device 1b does not have such a problem, and display control can be performed by signal input from only one side, and the width of the frame region can be narrowed.

[to sum up]

A display device according to a first aspect of the present invention includes a display panel 11 including a display surface 111, a first terminal (a gate connection portion TG, a gate control terminal Tg), and a second terminal (a source connection portion TS, a source) The terminal control terminal Ts) is applied to the first signal (gate signal) applied to the signal line (gate control line Lg) extending in the first direction, and is applied to be perpendicular to the first direction The second signal (source signal) of the signal line (source control line Ls) extending in the second direction is displayed and controlled, and the first terminal (the gate connection portion TG and the gate control terminal Tg) is input with the first signal. The second terminal (the source connection portion TS and the source control terminal Ts) is input with the second signal, and the first drive module (gate drive module 12G) is connected to the first terminal, and the first a first signal and a second drive module (source drive module 12S) connected to the second terminal and generating the second signal; and the first terminal and the second terminal are formed only on the display panel One side of the L side, the first driving module and the second driving module are projected onto the display surface Each shadow matter of face A small number (area P) overlap each other.

According to the above configuration, since the first terminal and the second terminal are formed only on one side of the display panel, the display device can perform display control by inputting only the first signal and the second signal from only one side.

Here, a portion that cannot be used as a display device of a display surface is referred to as a frame region. Further, since the first drive module and the second drive module cannot be used as the display surface, they are part of the frame region.

According to the above configuration, at least a part of the shadow formed by the first driving module projected onto the plane including the display surface overlaps with at least a part of the shadow projected by the second driving module onto the plane, and thus the display is self-displayed. When the area occupied by the first driving module and the second driving module in the display device is smaller than the case where the shadow of the first driving module does not overlap with the shadow of the second driving module . That is, the frame area of the display device can be narrowed.

Further, the display device may be a matrix type liquid crystal display panel, and the first signal may be a gate signal and the second signal may be a source signal. Furthermore, the second signal may be a gate signal, and the first signal may be a source signal.

Therefore, in the matrix type liquid crystal display panel, display control can be performed by signal input from only one side, and the width of the bezel area can be narrowed.

A display device according to a second aspect of the present invention includes a display panel 11 including a display surface 111, a first terminal (gate connection portion TG, gate control terminal Tg), and a second terminal (source connection portion TS, source) The terminal control terminal Ts) is applied to the first signal (gate signal) applied to the signal line (gate control line Lg) extending in the first direction, and is applied to be perpendicular to the first direction The second signal (source signal) of the signal line (source control line Ls) extending in the second direction is displayed and controlled, and the first terminal (the gate connection portion TG and the gate control terminal Tg) is input with the first signal. The second terminal (the source connection portion TS and the source control terminal Ts) is input with the second signal, and the first drive module (gate drive module 12G) is connected to the first end. Sub-connecting and generating the first signal; and a second driving module (source driving module 12S) connected to the second terminal and generating the second signal; and the first terminal and the second terminal It is formed only in a region (frame region 112) on the display panel on the side L side of one of the display panels, and is arranged in the direction intersecting the one side in the region.

According to the above configuration, since the first terminal and the second terminal are formed only on one side of the display panel, the display device can perform display control by inputting only the first signal and the second signal from only one side.

Further, since the connection portion between the first driving module and the display panel and the connection portion between the second driving module and the display panel are arranged in a direction intersecting the side in a region on one side of the display panel, the connection is made The portion occupied by the first driving module and the second driving module in the display device is narrower in a direction parallel to the side than when the portion is not aligned in the direction intersecting the side. Thereby, the position of the first driving module and the position of the second driving module are optimized, and there is room for narrowing the frame area of the display device.

Therefore, in the matrix type liquid crystal display panel, display control can be performed by signal input from only one side, and the width of the bezel area can be narrowed.

The display device of the aspect 3 of the present invention is the aspect 1 or 2, wherein at least one of the first driving module and the second driving module may further include: an input terminal CP_in, which is input An input signal; and an input trunk (straight-through wiring Ls_thr) that relays an input signal input to the input terminal to another driving module.

According to the above configuration, a signal is input from an input terminal of a driving module, and the signal is relayed by the trunk, whereby the other driving module can receive the signal even if it does not have an input terminal connected to the substrate that generates the signal. Input.

In a display device according to a fourth aspect of the present invention, in the aspect of the first aspect, the central axis CL of the first driving module and the second driving module intersecting with the one side is also Can be consistent.

According to the above configuration, the wirings of the first drive module and the second drive module can be arranged to be axisymmetric with respect to the central axis, and optimal wiring can be arranged.

A display device according to a fifth aspect of the present invention, characterized in that in any one of the aspects 1 to 4, the plurality of first terminals and the plurality of second terminals may be included, and the second terminal is attached to each of the second terminals. n m first terminals are formed, and m and the above n are integers.

According to the above configuration, the first terminal and the second terminal can be regularly arranged by the arrangement of the fixed ratio (m: n), and the wiring connected to each terminal can be regularly arranged. Assuming that the terminals and the wirings are randomly arranged, the arrangement is wasteful, and the area of the bezel area is increased, which is related to the increase in cost of the display device. However, according to the above configuration, waste of such an arrangement can be suppressed, and the cost of the display device can be suppressed from being increased.

The display device of Aspect 6 of the present invention is in the above aspect 5, and the ratio of the above m to the above n may be 1:3 or 1:6.

According to the above configuration, by the ratio of m:n being 1:3, the display device can perform color display by, for example, three primary colors of RGB. Further, by the ratio of m:n being 1:6, the display device can perform color display in higher definition and higher speed by the three primary colors of RGB.

Furthermore, the present invention is not limited to this configuration, and when the display device displays color by four primary colors, or changes the aspect ratio of the display panel of the display device (that is, the signal line extending along the first direction and the second along the second In the case of the ratio of the number of signal lines extending in the direction), the number n of the second terminals with respect to the m first terminals can be appropriately changed.

The display device of the seventh aspect of the present invention is in the above aspect 5 or 6, and may further include: a driving module group (gate driving module group 12Gs, source driving module group 12Ss), which is a plurality of And connecting at least one of the first driving module and the second driving module; and connecting a trunk line (gate cascode wiring Lg_cas, source cascading wiring Ls_cas) to the connected driving Between the modules, the input signal is relayed; and at least one of the driving module groups includes a relay signal input terminal (gate input terminal TG_in), and the relay signal input terminal (gate input terminal TG_in) is Input is given by the above connection trunk Relay input signal.

According to the above configuration, the signal is input from the relay signal input terminal of one of the drive modules, and the signal is relayed by the connection trunk, whereby the other drive modules can receive the input of the signal via the connected drive module. Thereby, it is not necessary to use a wiring branch for inputting each signal for each of the drive modules. Moreover, when the number of connections of the driving modules included in the driving module group is plural, the display device may also include a plurality of connecting trunks.

The display device of the aspect 8 of the present invention is the aspect of any of the above aspects 1 to 7, wherein at least one of the first driving module and the second driving module can also include the above The display surface is curved in the direction in which the plane intersects.

According to the above configuration, one drive module does not interfere with the other drive module, so that the width of the frame region of the display panel can be narrowed.

Moreover, by bending a driving module, the member connected to the driving module can be disposed on the back side of the display panel. Thereby, the thickness of the display device can be reduced.

[Other manifestations of the present invention]

The aspect of the present invention can be expressed in the following manners a1 to a4 in addition to the above aspects 1 to 8.

In the display device of the aspect a1 of the present invention, the display signal is applied to the signal line of the first direction by a panel including a plurality of signal lines of the first direction arranged in a matrix and a plurality of signal lines of the second direction. a driver element and a second driving element that supplies a driving signal to a signal line in the second direction are displayed; and a driving element mounting region for extracting the first signal line and the second signal line is provided on one of the panels; In the driving element mounting region, the first signal line and the second signal line drawn are arranged in a ratio of m:n (m, n is a natural number), and the first driving element and the second driving are in the mounting region. The components are mounted in such a manner as to overlap when viewed from the panel display side.

Moreover, the display device of the aspect a2 of the present invention is in the above aspect a1, and may also be the second The input signal of the driving element is input to the second driving element via the first driving element.

Further, in the display device of the aspect a3 of the present invention, in the above aspect a1 or a2, the first driving element and the second driving element can be attached so as to overlap each other at their respective central positions.

Further, the display device of the aspect a4 of the present invention is in any of the above aspects a1 to a3, and the ratio of the above m to the above n may be 1:3 or 1:6.

[attachment]

The present invention is not limited to the above embodiments, and various modifications can be made without departing from the scope of the invention, and the embodiments obtained by appropriately combining the technical means disclosed in the respective embodiments are also included in the technical scope of the present invention. Inside. Further, new technical features can be formed by combining the technical means disclosed in the respective embodiments.

[Industrial availability]

The present invention is widely applicable to a matrix type display device.

1‧‧‧ display device

11‧‧‧ display panel

12G‧‧‧Gate drive module (1st drive module)

12S‧‧‧Source Drive Module (2nd Drive Module)

13‧‧‧Input substrate

111‧‧‧ Display surface

112‧‧‧Border area (area)

A‧‧‧ main part

GD‧‧ ‧ gate driver

L‧‧‧ side

P‧‧‧ area

SD‧‧‧Source Driver

TG‧‧‧gate connection (first terminal)

TS‧‧‧Source connection (2nd terminal)

X‧‧‧ direction

Y‧‧‧ direction

Z‧‧‧ direction

Claims (5)

A display device comprising: a display panel including a display surface, a first terminal, and a second terminal, wherein the display surface is applied to a first signal applied to a signal line extending in a first direction, and is applied to And displaying, by the second signal of the signal line extending in the second direction perpendicular to the first direction, the first signal is input to the first signal, the second terminal is input to the second signal, and the first driving module is configured to: The first terminal is connected to the first terminal, and the first signal is generated; and the second driving module is connected to the second terminal to generate the second signal; and the first terminal and the second terminal are formed only on On one side of the display panel, at least a portion of each of the first driving module and the second driving module projected onto a plane including the display surface overlaps each other. A display device comprising: a display panel including a display surface, a first terminal, and a second terminal, wherein the display surface is applied to a first signal applied to a signal line extending in a first direction, and is applied to And displaying, by the second signal of the signal line extending in the second direction perpendicular to the first direction, the first signal is input to the first signal, the second terminal is input to the second signal, and the first driving module is configured to: And connecting to the first terminal to generate the first signal; and the second driving module connected to the second terminal to generate the second signal; The first terminal and the second terminal are formed only in a region on the display panel on one side of the display panel, and are arranged in a direction intersecting the one side in the region. The display device of claim 1 or 2, wherein at least one of the first driving module and the second driving module comprises: an input terminal to which an input signal is input; and an input trunk that is input to The input signal of the input terminal is relayed to another driving module. A display device according to claim 1 or 2, comprising: a plurality of said first terminals; and said plurality of said second terminals; and said second terminal is formed with n each of said m first terminals, said m and said The above n is an integer. The display device of claim 4, wherein the ratio of the above m to the above n is 1:3 or 1:6.