WO2015015925A1

WO2015015925A1 - Display device

Info

Publication number: WO2015015925A1
Application number: PCT/JP2014/065769
Authority: WO
Inventors: 仲栄中村; 宣明浅山; 義明細谷
Original assignee: シャープ株式会社
Priority date: 2013-07-30
Filing date: 2014-06-13
Publication date: 2015-02-05
Also published as: TW201506513A

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

The present invention relates to a display device that is used as a multi-display device by joining a plurality of pieces to each other, and more particularly to a technique for reducing a joint portion (non-display area).

In recent years, flat panel displays using liquid crystal panels and the like have been increased in size. In particular, in a multi-display device used in the digital signage field or the like, a plurality of large display devices having a large display area are joined together to form a larger display area.

In such a multi-display device, a large display device can be easily constructed by adjoining a plurality of display devices in a plane and vertically and horizontally, but on the joint portion between the display devices, Since a frame called a bezel is formed, an area in which an image cannot be displayed (hereinafter referred to as “non-display area”) is formed. Due to this non-display area, the display of the multi-display device has a problem that a grid-like line appears and the quality of the displayed image is deteriorated.

In Patent Document 1, in a flat display having a video display unit and a non-display unit provided on the outer periphery of the video display unit, the display part and the non-display part of the outer peripheral part adjacent to the display unit are arranged on the surface. A configuration is disclosed that includes an optical element that enlarges the display unit on the non-display unit and narrows the range of the non-display unit.

That is, in this technique, the light emitted from the peripheral portion of the video display portion is refracted by the cylindrical lens covering the peripheral portion, thereby leading to the non-display portion side so that the non-display portion cannot be seen.

15A and 15B are diagrams showing a configuration of a display panel 1011 of a general liquid crystal display device according to the prior art, where FIG. 15A shows the overall configuration and FIG. 15B shows the configuration of a pixel. As shown in FIG. 15A, 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. 15B, the pixel E constituting the display portion 1111 includes a switching element S made of TFT and a liquid crystal capacitor Clc, and a gate connected to the gate of the switching element S. The liquid crystal capacitance connected to the drain of the switching element S is controlled by the gate signal supplied from the control line, and the source signal supplied from the source control line connected to the source of the switching element S is controlled. Display control is performed by charging Clc.

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

FIG. 16 is a diagram illustrating a configuration of a drive module 1012 according to the related art, where (a) is a top view and (b) is a cross-sectional view.

As shown in FIG. 16A, the drive module 1012 has an input terminal Tin and an output terminal Tout at the end, and a drive circuit Dr that is a source drive circuit or a gate drive circuit at the center. Yes.

Further, as shown in FIG. 16B, the drive module 1012 is configured by laminating a base material 121, a wiring 122, and a solder resist 123, and the drive circuit Dr is fixed by the resin 124. Has been.

FIG. 17 is a diagram showing a configuration of wiring connected to the drive circuit Dr of the drive module 1012 according to the conventional technique. As shown in FIG. 17, the input line Lin is drawn from the input terminal Tin, and the output line Lout is drawn mainly 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 to which the connection is made becomes large. Moreover, such an end becomes a non-display area.

Therefore, when a display device is used as a part of the multi-display device, it is necessary to make the end of the display device that is a non-display area as small as possible.

FIG. 18 is a diagram showing a configuration described in Patent Document 2. As shown in FIG. 18, a display panel (liquid crystal panel) 2001 disclosed in Patent Document 2 includes a plurality of data line electrodes and a plurality of scans that intersect with each other to form a matrix pixel portion at the intersection. It has a line electrode. In addition, a mounting package 2021 is connected to an edge of one side of the glass substrate 2001a of the display panel 2001. Further, an LSI chip 2024 for driving the data line electrodes and an LSI chip 2023 for driving the scanning line electrodes are mounted on the insulating film base 2022 in the mounting package 2021 in order from the side close to the display panel 2001. Further, the wiring portion 2028b composed of a plurality of wirings connecting the connection terminal group 2027 and the LSI chip 2024 is fixed to the film base material 2022 so as to pass under the LSI chip 2023 (mounting region) on the film base material 2022. It is arranged.

That is, in the configuration of Patent Document 2, in order to reduce the non-display area when used in a multi-display device, the gate drive circuit is mounted on the panel with a flexible package and bent on the back surface, or the output signal of the gate drive circuit Thus, it can be said that the source driving circuit and the gate driving circuit are mounted on one side of the panel.

Japanese Patent Publication “JP 2009-162999 A (published on July 23, 2009)” Japanese Patent Publication “JP 2002-244580 A (published on August 30, 2002)”

However, the conventional techniques as described above have the following problems.

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

This is because the source signal and the gate signal are input from two different sides of the display panel of the document. With this configuration, in the display device of the document, the gate drive circuit that generates the gate signal is mounted on the side where the gate signal is input, and the gate control terminal for connecting the gate drive circuit is provided on the side, It is necessary to connect a gate drive circuit.

FIG. 19 is a diagram illustrating a configuration of a display device 3001 according to the related art. As shown in FIG. 19, a source drive module 3012 </ b> S is connected to one side of the display panel 3011. A gate driving module 3012G is connected to the other side of the display panel 3011. Note that an input substrate 3013 is connected to the end of the source driving module 3012S on the side where the display panel 3011 is not connected.

FIG. 20 is a diagram illustrating a configuration of the display unit 3111 provided in the display panel 3011 according to the related art. As shown in FIG. 20, in the display portion 3111, the gate control line Lg and the source control line Ls are orthogonal to each other. With this configuration, the source control terminal Ts exists on one side of the display portion 3111, and the gate control terminal Tg exists on the other two sides of the display portion 3111.

FIG. 21 is a diagram showing a configuration of a display panel 3011 according to the related art. As a result of the display unit 3111 having the configuration shown in FIG. 21, a frame region 3112 is formed on three sides of the display unit 3111 (display panel 3011) corresponding to the source control terminal Ts and the gate control terminal Tg. Become.

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

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

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

In view of the above-described problems, the present invention provides a display device that can be controlled by signal input from only one side and can reduce the width of the frame area in a matrix type liquid crystal display panel. The purpose is to do.

A display device according to one embodiment of the present invention includes a first signal applied to a signal line extending in a first direction and a second signal applied to a signal line extending in a second direction perpendicular to the first direction. A display panel having a display surface to be controlled, a first terminal to which the first signal is input, and a second terminal to which the second signal is input, and the first terminal connected to the first terminal. A first drive module that generates a signal; and a second drive module that is connected to the second terminal and generates the second signal. The first terminal and the second terminal are connected to the display panel. At least a part of each shadow formed on only one side and projected onto the plane including the display surface of the first drive module and the second drive module overlaps each other.

The display device according to another aspect of the present invention includes a first signal applied to a signal line extending in a first direction and a second signal applied to a signal line extending in a second direction perpendicular to the first direction. Connected to the first terminal, a display panel having a display surface controlled by a signal, a first terminal to which the first signal is input, and a second terminal to which the second signal is input; A first drive module that generates the first signal; and a second drive module that is connected to the second terminal and generates the second signal, wherein the first terminal and the second terminal are It is formed only in a region on the display panel on one side of the display panel, and is arranged in a direction intersecting with the one side in the region.

According to each aspect of the present invention, in a 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 reduced.

It is a figure which shows the structure of the display apparatus which concerns on Embodiment 1, (a) is a side view, (b) is a front view. 2A and 2B are diagrams illustrating a configuration of a display panel included in the display device illustrated in FIG. 1, in which FIG. 1A illustrates the entire configuration, and FIG. It is a figure which shows the structure of the control line in the display surface with which the display panel shown by FIG. 2 is provided. It is a figure which shows the position of the frame area | region in the display panel shown by FIG. It is an enlarged view of the principal part of the display apparatus shown by (b) of FIG. 1, Comprising: It is a figure which shows the connection relation of a display panel, a source drive module, and an input board. FIG. 6 is an enlarged view of a main part of the display device shown in FIG. 1B, and shows a connection relationship between the display panel and the gate drive module in addition to the connection relationship shown in FIG. 5. FIG. 7 is an enlarged view of a main part of FIG. 6, illustrating a configuration in which an input signal is relayed to the gate driving module by wiring on the source driving module. FIG. 2 is a diagram illustrating a configuration of gate lines and source lines in the display device illustrated in FIG. 1. It is a side view which shows the display apparatus which concerns on the modification of the display apparatus shown by FIG. 10 is a front view illustrating a configuration of a display device according to Embodiment 2. FIG. It is an enlarged view of the principal part of the display apparatus shown by FIG. It is a figure which shows a structure when only a gate drive module is mounted in the principal part shown by FIG. It is a figure which shows the structure by which the source drive module was further mounted in the principal part shown by FIG. It is a figure which shows the structure of the display apparatus which concerns on the comparative example of the display apparatus shown by FIG. It is a figure which shows the structure of the display panel of the general liquid crystal display device based on a prior art, (a) shows the whole structure, (b) is a figure which shows the structure of a pixel. It is a figure which shows the structure of the drive module based on a prior art, (a) is a top view, (b) is sectional drawing. It is a figure which shows the structure of the wiring connected to the drive circuit of a drive module based on a prior art. It is a figure which shows the structure as described in patent document 2. FIG. It is a figure which shows the structure of the display apparatus based on a prior art. It is a figure which shows the structure of the display part with which the display panel based on a prior art is provided. It is a figure which shows the structure of the display panel based on a prior art.

Embodiment 1
Hereinafter, embodiments of the present invention will be described in detail. One embodiment of the present invention will be described below with reference to FIGS.

<Configuration of Display Device 1>
FIG. 1 is a diagram illustrating a configuration of a display device 1 according to the present embodiment, where (a) is a side view and (b) is a front view. As shown in FIG. 1A, the display device 1 includes a display panel 11, a gate drive module (first drive module) 12G, a source drive module (second drive module) 12S, and an input substrate 13. It has. Further, as shown in FIG. 1B, a part of the shadow projected on the plane including the display surface 111 (that is, the XY plane) of the gate driving module 12G and the source driving module 12S is a region P. In each other.

With the above configuration, the display device 1 can be controlled as a matrix type liquid crystal display panel by inputting a gate signal (first signal) and a source signal (second signal) from only one side. In addition, the width of the frame region (region) 112 can be reduced. Below, each structure with which the display apparatus 1 is provided is demonstrated in detail.

(Display panel)
The display panel 11 has a gate signal applied to a later-described control line (signal line) extending in the X direction (first direction) and a later-described control line (signal) extending in the Y direction (second direction) perpendicular to the X direction. Display surface 111 controlled by the source signal applied to the line), a gate connection portion (first terminal) TG to which the gate signal is input, and a source connection portion (second terminal) to which the source signal is input. TS is provided, 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 Y direction (that is, the direction intersecting the side L) in the frame region 112.

FIG. 2 is a diagram illustrating a configuration of the display panel 11 included in the display device 1 illustrated in FIG. 1, where (a) illustrates the overall configuration, and (b) illustrates the configuration of the pixel E. As shown in FIG. 1B and FIG. 2A, the display panel 11 includes a frame region 112 in which a display surface 111, a gate connection portion TG, and a source connection portion TS are formed. And divided.

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 linear and arranged in parallel to each other. The gate control lines Lg are arranged in a straight line, in parallel with each other, and orthogonal to the source control line Ls. Here, the above-mentioned source signal is a signal applied to the source control line Ls and a signal indicating display data. The above gate signal is a signal applied to the gate control line Lg and a signal indicating display timing. The display surface 111 is configured by a set of pixels E indicated by a broken line frame in FIG.

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

Further, a gate control line Lg is connected to the gate of the switching element S. Then, the switching element S is controlled using 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 The liquid crystal capacitor Clc connected to the drain is charged. Thereby, display control on the display surface 111 is performed.

The gate control line Lg is branched by the gate control branch line Lb. Specifically, as shown in FIG. 2A, one gate control branch line Lb branches from the gate control line Lg for every three source control lines Ls. As a result, the gate control branch line Lb can be drawn to the negative direction side of the same Y axis as the source control line Ls, so that the display panel 11 can be controlled by the gate signal and the source signal input from the side L side.

FIG. 3 is a diagram showing a configuration of control lines (source control line Ls, gate control line Lg, gate control branch line Lb) on the display surface 111 provided in the display panel 11 shown in FIG. As shown in FIG. 3, on 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. A gate control branch line Lb branches from the gate control line Lg. 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.

Thus, the terminals (source control terminal Ts, gate control terminal Tg) corresponding to the control lines provided on the display surface 111 are arranged on the side L side of the display panel 11, and the above-described gate connection portion TG and The source connection part TS is formed.

FIG. 4 is a diagram showing the position of the frame area 112 in the display panel 11 shown in FIG. As shown in FIG. 4, the frame region 112 is located on the side L side (the negative direction side of the Y axis) of the display panel 11.

That is, the display panel 11 is a display panel including a plurality of gate control lines Lg arranged in parallel to each other and a source control line Ls orthogonal to the gate control line Lg, and branches 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. The control terminal Tg and the source control terminal Ts are formed only on one side.

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

The frame area 112 is connected with a drive module that is a driver for driving the display panel 11. Below, a drive module is demonstrated.

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

FIG. 5 is an enlarged view of a main part A of the display device 1 shown in FIG. 1B, and shows a connection relationship between the display panel 11, the source drive module 12 </ b> S, and the input board 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 out to the frame region 112 of the display panel 11. Only the wiring that receives the application of the source signal is connected to the source connection part TS.

The source drive module 12S is connected to the input board 13 via a source input connection part (input terminal) TS_in. Then, the input signal generated by the input board 13 is sent to the source driver SD by wiring on the source drive module 12S. Thereafter, the source driver SD generates the above-mentioned source signal from the transmitted input signal.

Here, the input signal includes, for example, an electric signal used for power supply for driving the gate driving module 12G and the source driving module 12S, a display data signal, a gate signal, and a source signal. It may include a control signal such as a clock signal used when generating.

FIG. 6 is an enlarged view of the main part A of the display device 1 shown in FIG. 1B, and in addition to the connection relationship shown in FIG. 5, the connection between the display panel 11 and the gate drive module 12G. It is a figure which shows a relationship. As shown in FIG. 6, only the wiring that receives the application of the gate signal is connected to the gate connection portion TG. The gate drive module 12G is connected to the display panel 11 via the gate connection portion TG so as to overlap the source drive module 12S in the region P.

Here, the central axes CL of the gate drive module 12G and the source drive module 12S in the direction intersecting with the side L (that is, the Y direction) may coincide with each other. According to this configuration, the wirings related to the gate drive module 12G and the source drive module 12S can be arranged so as to be axially symmetric with respect to the central axis CL, and optimal wiring arrangement is possible.

An input signal generated by the input board 13 is relayed by a relay line on the source drive module 12S and sent to the gate driver GD. The gate driver GD receives the above gate signal from the sent input signal. It may be generated. Below, this structure is demonstrated.

(Configuration for relaying signals by relay lines on the drive module)
FIG. 7 is an enlarged view of the main part B of FIG. 6 and shows a configuration in which an input signal is relayed to the gate drive module 12G by wiring on the source drive module 12S. As shown in FIG. 7, at least one of the gate driving module 12G and the source driving module 12S has an input terminal CP_in to which an input signal is input and a through that relays the input signal to the other driving module. Wiring (input relay line) Ls_thr may be provided. With this configuration, a signal is input from the input terminal CP_in of the source driving module 12S, and the signal is relayed by the through wiring Ls_thr, whereby the gate driving module 12G is connected to the substrate that generates the input signal for generating the gate signal. Even if the input terminal is not provided, the input of the signal can be received.

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

Note that the position of the through wiring Ls_thr and the gate input wiring Lg_in is fixed by the contact CP while maintaining electrical connection.

In the configuration shown in FIG. 7, the input terminal CP_in and the through wiring Ls_thr are provided in the source drive module 12S, but the configuration is not limited to this configuration, and is provided in the gate drive module 12G. May be. In this case, the source driving module 12S can receive the input of the signal without including an input terminal connected to the substrate that generates the input signal for generating the source signal.

(Ratio between the number of gate lines and the number of source lines)
FIG. 8 is a diagram showing a configuration of the gate line Lg_out and the source line Ls_out in the display device 1 shown in FIG. As shown in FIG. 8, the display device 1 includes a plurality of gate lines Lg_out connected to the gate drive module 12G and a plurality of source lines Ls_out connected to the source drive module 12S. The display device 1 includes a plurality (m) of gate control terminals Tg (see FIG. 3) corresponding to the gate wiring Lg_out, and a plurality (n) of source control terminals corresponding to the source wiring Ls_out. Ts (see FIG. 3) (m and n are integers).

According to this configuration, the gate control terminal Tg and the source control terminal Ts can be regularly arranged by an arrangement with a certain ratio (m: n), and the wiring connected to each terminal is also regularly arranged. Can do. If the terminals and the wirings are irregularly arranged, the arrangement is wasted, the area of the frame area is increased, and the cost of the display device 1 is increased. However, according to the above configuration, it is possible to suppress such waste of the arrangement, and it is possible to suppress the display device 1 from increasing in cost.

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

Note that the present invention is not limited to this configuration, and the display device 1 expresses colors using four primary colors, or the aspect ratio of the display panel 11 of the display device 1 (that is, the number of source lines Ls_out and gate lines Lg_out). When the ratio) is changed, the number n of source control terminals Ts with respect to m gate control terminals Tg can be changed as appropriate.

Further, the gate drive module group 12Gs and the source drive module group 12Ss may be those using cascade-connected shift registers.

<Operation and Effect of Display Device 1>
With the above-described configuration, in FIG. 1, the gate connection portion TG and the source connection portion TS are formed only on the side L side of the display panel 11. Display control is possible by inputting only from the L side.

Here, the part of the display device 1 that cannot be used as the display surface 111 is called a frame area. Since the gate driving module 12G and the source driving module 12S cannot be used as the display surface 111, they become part of the frame area 112.

According to the above configuration, at least a part of the shadow of the gate driving module 12G projected onto the plane including the display surface 111 and at least a part of the shadow of the source driving module 12S projected onto the plane overlap each other (region P). Therefore, the area occupied by the gate drive module 12G and the source drive 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 above-described area. The shadow of the gate driving module 12G and the shadow of the source driving module 12S described above are smaller than the case where the shadow does not overlap (the region P does not exist). That is, the frame area of the display device 1 can be narrowed.

The display device 1 can be used for a matrix-type liquid crystal display panel, and can display control by inputting a gate signal and a source signal from only one side and reduce the width of the frame region. be able to.

[Modification]
A modification of the present invention will be described below with reference to FIG. For convenience of explanation, members having the same functions as those described in the embodiment are given the same reference numerals, and descriptions thereof are omitted.

FIG. 9 is a side view showing a display device 1a according to a modification of the display device 1 shown in FIG. Here, the display device 1a has the same configuration as that of the display device 1, but as shown in FIG. 9, at least one of the gate drive module 12G and the source drive module 12S is connected to the display panel 11. The difference is that it is bent in the direction intersecting the plane including the display surface (the negative direction of the Z axis). According to the above configuration, one drive module and the other drive module do not interfere with each other, and the width of the frame region of the display panel 11 can be reduced.

It is also possible to arrange the input board 13 on the back side of the display panel 11 by bending the source driving module 12S on the input board 13 side. According to the above configuration, the thickness of the display device 1 can be reduced.

[Embodiment 2]
The following will describe another embodiment of the present invention with reference to FIGS. For convenience of explanation, members having the same functions as those described in the embodiment are given the same reference numerals, and descriptions thereof are omitted.

<Configuration for transferring signals between drive modules>
FIG. 10 is a front view showing the configuration of the display device 1b according to the present embodiment. The display device 1b has the same configuration as the display device 1, and further, a signal is transmitted between the gate drive module group (drive module group) 12Gs to which a plurality of gate drive modules 12G are connected and the connected gate drive module 12G. And a gate cascade wiring (connection relay line) Lg_cas for relaying. In addition, a source drive module group (drive module group) 12Ss in which a plurality of source drive modules 12S are connected and a source cascade wiring (connection relay line) Ls_cas for relaying signals between the connected source drive modules 12S are provided. Yes.

Here, the source drive modules 12S at both ends of the source drive module group 12Ss receive a gate driver control signal via the gate driver control signal input line Lg_ctrA, and via the source driver start signal input line Ls_str. Source driver start signal is input. The gate drive module 12G at the right end (the positive end of the X axis) of the gate drive module group 12Gs receives the gate driver control signal via the gate driver control signal input lines Lg_ctrB and Lg_ctrC. The source drive module 12S included in the source drive module group 12Ss receives a source driver control signal from the side connected to the input board 13 via the source driver control signal input line Ls_ctr.

The input substrate 13 is connected to the gate driver control signal input line Lg_ctrA, the source driver control signal input line Ls_ctr, and the source driver start signal input line Ls_str, and the gate driver control signal, the source driver control signal, and the source A controller 131 for generating a driver start signal is provided.

Here, the gate driver control signal is used, for example, when generating a start signal for instructing the start of processing, an electric signal used for power supply for driving the gate driving module 12G, or a gate signal. A control signal such as a clock signal may be included.

The source driver control signal is, for example, an electric signal used for power supply for driving the source driving module 12S, a display data signal, a clock signal used when generating the source signal, or the like. A control signal may be included.

The gate driving module 12G has a function of transferring the input signal to another connected gate driving module. Therefore, when at least one gate drive module included in the gate drive module group 12Gs receives a signal, all the gate drive modules included in the gate drive module group 12Gs can receive the input of the signal. .

(Wiring to connect the drive module)
FIG. 11 is an enlarged view of a main part C of the display device 1b shown in FIG. As shown in FIG. 11, n (n is 3 or 6) source lines Ls_out are arranged with respect to one gate line Lg_out, and the gate line Lg_out is closer to the side of the display panel 11 than the source line Ls_out. It is extended to the L side (the negative direction side of the Y axis).

Further, the gate driver control signal input line Lg_ctrC for connecting the gate driving module 12G and the source driving module 12S is arranged at the right end (end in the positive direction of the X axis) of the frame region 112. In addition, the gate cascade line Lg_cas that connects the gate drive module 12G and another gate drive module is disposed between the regions of the frame region 112 where the gate drive module 12G is mounted.

(Drive module connection configuration)
FIG. 12 is a diagram showing a configuration when only the gate drive module 12G is mounted on the main part C shown in FIG. As shown in FIG. 12, the gate input terminal (relay signal input terminal) TG_in is provided 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. As described above, an input signal is received from the input board 13 via the source driving module 12S. The gate drive module 12G shares the input signal with other gate drive modules 12G included in the gate drive module group 12Gs, generates a signal indicating display timing by the gate driver GD (see FIG. 1), and generates a gate wiring. Send to Lg_out.

FIG. 13 is a diagram showing a configuration in which the source drive module 12S is further mounted on the main part C shown in FIG. As shown in FIG. 13, the source drive module 12 </ b> S has one end (the Y axis positive direction) connected to the display panel 11 and the other end (the Y axis negative direction) connected to the input board 13. Further, the gate driver control signal input line Lg_ctrB provided in the source driving module 12S is connected to the gate driver control signal input line Lg_ctrC described above.

Thereby, the gate driver control signal is input to the input board 13 (gate driver control signal input line Lg_ctrA (see FIG. 10)), the source driving module 12S (gate driver control signal input line Lg_ctrB), the gate driver control signal input line Lg_ctrC, and the right end. The gate drive modules 12G are sent in the order of (the positive end of the X axis).

The gate driver control signal input line Lg_ctrB is formed on the source drive module 12S and may be the same as the above-described through wiring Ls_thr.

<Effect of this embodiment>
According to the configuration described above, a signal is input from the gate input terminal TG_in of one gate drive module 12G, and the other gate drive module 12G is connected to the connected gate by relaying the signal through the gate cascade line Lg_cas. The signal can be input via the drive module 12G. This eliminates the need to branch the wiring for inputting the signal for each gate drive module 12G.

In this embodiment, the gate drive module at the right end of the gate drive module group 12Gs receives a signal input, but the present invention is not limited to this configuration. For example, when the display panel 11 is divided and subjected to display control, the gate drive module arranged at the division position receives a signal input, and each of the gate drive modules connected to the divided display panel is The signal may be relayed in different directions, and the position of the gate driving module that receives the signal input is not limited.

(Comparative example)
FIG. 14 is a diagram illustrating a configuration of a display device 11b according to a comparative example of the display device 1b illustrated in FIG. As shown in FIG. 14, the display device 11b includes a display panel 3011, a gate drive module 3012G, a source drive module 3012S, and an input substrate 3013. Note that the input substrate 3013 includes a controller 3131 connected to the gate drive module 3012G and the source drive module 3012S.

In the display device 11b, a plurality of gate drive modules 3012G are provided on one side (side on the positive side of the X axis) of the display panel 3011, and a plurality of sources are provided on the other side (side on the negative direction side of the Y axis). A drive module 3012S is provided. For this reason, the frame region 3112 has a problem that it extends over two sides of the display panel and the display surface becomes narrow.

However, the above-described display device 1b does not have such a problem, can be controlled by signal input from only one side, and can reduce the width of the frame area.

[Summary]
The display device according to the first aspect of the present invention includes a first signal (gate signal) applied to a signal line (gate control line Lg) extending in a first direction and a signal extending in a second direction perpendicular to the first direction. A display surface 111 controlled by a second signal (source signal) applied to the line (source control line Ls), and a first terminal (gate connection portion TG, gate control terminal Tg) to which the first signal is input. ) And a second terminal (source connection unit TS, source control terminal Ts) to which the second signal is input, and a first panel that is connected to the first terminal and generates the first signal. A drive module (gate drive module 12G); and a second drive module (source drive module 12S) connected to the second terminal and generating the second signal, the first terminal, the second terminal, Show above At least a part of each shadow (region P) projected on the plane including the display surface of the first drive module and the second drive module overlaps 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 inputs the first signal and the second signal from only one side. Display control becomes possible.

Here, the part of the display device that cannot be used as a display surface is called a frame area. And since the 1st drive module and the 2nd drive module cannot be used as a display surface, they become a part of frame area.

According to the above configuration, at least a part of the shadow of the first drive module projected onto the plane including the display surface and at least a part of the shadow of the second drive module projected onto the plane overlap each other. The area occupied by the first drive module and the second drive module in the display device when viewed from the direction crossing the line is the overlap of the shadow of the first drive module and the shadow of the second drive module. It becomes smaller than the case where it does not become. That is, the frame area of the display device can be narrowed.

Further, the above 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. Note that the second signal may be a gate signal and the first signal may be a source signal.

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

The display device according to aspect 2 of the present invention includes a first signal (gate signal) applied to a signal line (gate control line Lg) extending in the first direction and a signal extending in a second direction perpendicular to the first direction. A display surface 111 controlled by a second signal (source signal) applied to the line (source control line Ls), and a first terminal (gate connection portion TG, gate control terminal Tg) to which the first signal is input. ) And a second terminal (source connection unit TS, source control terminal Ts) to which the second signal is input, and a first panel that is connected to the first terminal and generates the first signal. A drive module (gate drive module 12G); and a second drive module (source drive module 12S) connected to the second terminal and generating the second signal, the first terminal, the second terminal, The above table Of one side L side of the panel, it is formed only in the region on the display panel (frame area 112) are aligned in a direction intersecting the one side in the region.

In addition, the connection part between the first drive module and the display panel and the connection part between the second drive module and the display panel are arranged in a direction intersecting with the side in the region on one side of the display panel. The portion occupied by the first drive module and the second drive module in the display device is narrower in the direction parallel to the side than in the case where the above-described connection portions are not arranged in the direction intersecting the side. . As a result, there is room for optimizing the position of the first drive module and the position of the second drive module and narrowing the frame area of the display device.

In the display device according to aspect 3 of the present invention, in the aspect 1 or 2, at least one of the first drive module and the second drive module includes an input terminal CP_in to which an input signal is input; You may provide the input relay line (through wiring Ls_thr) which relays the input signal input into the said input terminal to the other drive module.

According to the above configuration, a signal is input from the input terminal of one of the drive modules, and the other drive module is connected to the board that generates the signal by relaying the signal through the relay line. Even if it is not provided, the input of the signal can be received.

In the display device according to aspect 4 of the present invention, in any one aspect of aspects 1 to 3, each center of the first drive module and the second drive module in a direction intersecting the one side is provided. The axes CL may coincide.

According to the above configuration, the wirings related to the first drive module and the second drive module can be arranged so as to be axially symmetric with respect to the central axis, and optimal wiring arrangement is possible.

A display device according to an aspect 5 of the present invention includes the plurality of first terminals and the plurality of second terminals in any one of the aspects 1 to 4, wherein the number of the second terminals is m. N are formed for each of the first terminals, and m and n may be integers.

According to the above configuration, the first terminal and the second terminal can be regularly arranged by an arrangement with a constant ratio (m: n), and the wiring connected to each terminal can also be arranged regularly. . If the terminals and the wirings are irregularly arranged, the arrangement is wasted, the area of the frame area is increased, and the cost of the display device is increased. However, according to the above configuration, it is possible to suppress such waste of the arrangement, and it is possible to suppress an increase in cost of the display device.

In the display device according to aspect 6 of the present invention, in the aspect 5, the ratio of m to n may be 1: 3 or 1: 6.

According to the above configuration, when the ratio of m: n is 1: 3, the display device can perform color display using, for example, three primary colors of RGB. In addition, when the ratio of m: n is 1: 6, the display device can perform color display with the three primary colors of RGB at higher definition and higher speed.

Note that the present invention is not limited to this configuration, and the display device expresses colors using the four primary colors, or the aspect ratio of the display panel of the display device (that is, the signal line extending in the first direction and the signal line extending in the second direction). When the number ratio with respect to the signal lines is changed, the number n of the second terminals with respect to the m first terminals can be appropriately changed.

The display device according to aspect 7 of the present invention is the display module according to aspect 5 or 6, wherein a drive module group (gate drive module group) in which a plurality of at least one of the first drive module and the second drive module is connected. 12Gs, source drive module group 12Ss) and connection relay lines (gate cascade wiring Lg_cas, source cascade wiring Ls_cas) for relaying input signals between the connected drive modules, and at least one of the drive module groups One drive module may include a relay signal input terminal (gate input terminal TG_in) to which an input signal relayed by the connection relay line is input.

According to the above configuration, a signal is input from the relay signal input terminal of one drive module, and the other drive module is connected to the other drive module via the connected drive module. A signal can be input. This eliminates the need for branching the wiring for inputting the signal for each drive module. Note that the display device may include a plurality of connection trunk lines when the number of connection of the drive modules included in the drive module group is plural.

A display device according to an eighth aspect of the present invention is the display device according to any one of the first to seventh aspects, wherein at least one of the first drive module and the second drive module includes the display surface. It may be bent in the direction intersecting the plane.

According to the above configuration, one drive module and the other drive module do not interfere with each other, and the width of the frame area of the display panel can be reduced.

It is also possible to arrange a member connected to the drive module on the back side of the display panel by bending one of the drive modules. Thereby, the thickness of the display device can be reduced.

[Another expression of the present invention]
Aspects of the present invention can be expressed as the following aspects a1 to a4 in addition to the above aspects 1 to 8.

The display device according to aspect a1 of the present invention includes a panel including a plurality of first-direction signal lines and a plurality of second-direction signal lines, which are arranged in a matrix, and driving signals for the first-direction signal lines. The display device performs display with a first drive element that provides a drive signal and a second drive element that provides a drive signal to the signal line in the second direction, and the first signal line and the second signal are provided on one side of the panel. The drive element mounting area from which the first signal line and the second signal line are drawn in a ratio of m: n (m and n are natural numbers) are provided in the drive element mounting area. In the mounting area, the first driving element and the second driving element are mounted so as to overlap each other when viewed from the panel display side.

In the display device according to aspect a2 of the present invention, in the aspect a1, the input signal of the second drive element may be input to the second drive element via the first drive element.

Further, in the display device according to aspect a3 of the present invention, in the aspect a1 or a2, the first drive element and the second drive element may be mounted so that their center positions overlap each other.

In the display device according to aspect a4 of the present invention, in any one of the aspects a1 to a3, the ratio of the m to the n may be 1: 3 or 1: 6.

[Additional Notes]
The present invention is not limited to the above-described embodiments, and various modifications are possible within the scope shown in the claims, and embodiments obtained by appropriately combining technical means disclosed in different embodiments. Is also included in the technical scope of the present invention. Furthermore, a new technical feature can be formed by combining the technical means disclosed in each embodiment.

The present invention can be widely used for matrix display devices.

DESCRIPTION OF SYMBOLS 1 Display apparatus 1a Display apparatus 1b Display apparatus 11 Display panel 12G Gate drive module (1st drive module)
12Gs gate drive module group (drive module group)
12S source drive module (second drive module)
12Ss source drive module group (drive module group)
111 Display surface 112 Frame area (area)
CL Center axis CP_in Input terminal Lg Gate control line (signal line extending in the first direction)
Lg_cas Gate cascade wiring (connection trunk line)
Ls source control line (signal line extending in the second direction)
Ls_thr Through wiring (input relay line)
Ls_cas Source cascade wiring (connection trunk line)
TG Gate connection (first terminal)
TG_in Gate input terminal (relay signal input terminal)
TS source connection (second terminal)
Tg Gate control terminal (first terminal)
Ts Source control terminal (second terminal)

Claims

A display surface controlled by a first signal applied to a signal line extending in a first direction and a second signal applied to a signal line extending in a second direction perpendicular to the first direction; A display panel having a first terminal to which a signal is input and a second terminal to which the second signal is input;
A first drive module connected to the first terminal and generating the first signal;
A second drive module connected to the second terminal and generating the second signal,
The first terminal and the second terminal are formed only on one side of the display panel,
At least a part of each shadow projected on the plane including the display surface of the first drive module and the second drive module overlaps each other.
A display surface controlled by a first signal applied to a signal line extending in a first direction and a second signal applied to a signal line extending in a second direction perpendicular to the first direction; A display panel having a first terminal to which a signal is input and a second terminal to which the second signal is input;
A first drive module connected to the first terminal and generating the first signal;
A second drive module connected to the second terminal and generating the second signal,
The first terminal and the second terminal are:
It is formed only on the area on the display panel on one side of the display panel,
A display device arranged in a direction intersecting with the one side in the region.
At least one drive module of the first drive module and the second drive module is
An input terminal to which an input signal is input;
The display device according to claim 1, further comprising: an input relay line that relays the input signal input to the input terminal to the other drive module.
A plurality of the first terminals;
A plurality of the second terminals,
N second terminals are formed per m first terminals,
The display device according to claim 1, wherein the m and the n are integers.
5. The display device according to claim 4, wherein the ratio of m to n is 1: 3 or 1: 6.