CN101587266B - display device - Google Patents

Abstract

A display device comprises a substrate, a plurality of first signal lines, a plurality of second signal lines and a plurality of first signal internal transfer lines. The first signal lines and the second signal lines are arranged in the display area of the substrate in a staggered mode. The first signal internal patch cords are arranged in the display area of the substrate, wherein each first signal internal patch cord is electrically connected with a corresponding first signal line, and each first signal internal patch cord is arranged between adjacent second signal lines. Each of the first signal internal patch cords crosses the first signal line, and each of the first signal internal patch cords has the same number of crossing points as the first signal line. The invention changes the configuration mode of the signal lines or adjusts the RC delay of partial signal lines to ensure that all the signal lines have the same load effect, thereby the display device does not generate adverse effect on the display quality due to uneven load effect. The display device with the narrow frame can be realized by arranging the internal patch cord.

Description

display device

technical field

The present invention relates to a display device, especially a display device with a uniform load effect.

Background technique

A display device, such as a liquid crystal display device, includes wires or electrode structures such as gate lines, common lines, data lines, and pixel electrodes disposed on a substrate. In the line layout, whether it is due to design or under some unavoidable factors, the horizontal distance between the wires will be too close, so that the signals between each other will affect each other, resulting in a load effect. When the loading effect is not uniformly generated on each pixel, the effect on each pixel will not be consistent, and the uneven loading effect will seriously affect the display quality. Therefore, in the design of the display device, the uneven loading effect should be avoided as much as possible.

Please refer to Figure 1. FIG. 1 illustrates a schematic diagram of a conventional display device. As shown in FIG. 1 , the conventional display device 10 includes a substrate 12 , and the substrate 12 includes a display area 12D, a peripheral area 12P and a chip connection area 12C. The display device 10 includes a plurality of gate lines 14 and a plurality of data lines 16, which are arranged in the display area 12D of the substrate 12, wherein the gate lines 14 and the data lines 16 are perpendicular to each other, and two adjacent gate lines 14 are connected to the corresponding Two adjacent data lines 16 define a pixel (sub-pixel). The peripheral area 12P of the display device 10 is provided with a driver chip 20 , and one end of each data line 16 extends from the display area 12D to the chip connection area 12C, and is electrically connected to the driver chip 20 to receive a data signal. On the other hand, one end of each gate line 14 extends from the display area 12D to the peripheral area 12P, and is electrically connected to the chip connection area 12C and the driving chip 20 through the connecting wire 18, so that the connecting wire 18 can The gate signal sent by the driving chip 20 is transmitted to the corresponding gate line 14 .

It can be seen from FIG. 1 that the gate lines 14 of the conventional display device 10 are electrically connected to the driver chip 20 through the connection wires 18 arranged in the peripheral area 12P, but because the connection wires 18 located in the peripheral area 12P are connected to the display area 12D. The loading effects generated by the scan lines 14 and the data lines 16 are different, thus affecting the display effect of the display device 10 . In addition, in order to lay out the connecting wires 18 , the existing display device 10 must have a relatively large peripheral area 12P, and thus cannot have a narrow frame design.

Contents of the invention

One of the objectives of the present invention is to provide a display device with narrow frame design and uniform loading effect.

To achieve the above purpose, the present invention provides a display device, which includes a substrate, a plurality of first signal lines, a plurality of second signal lines, and a plurality of first signal internal transfer lines. The substrate includes a display area. The first signal line is arranged in the display area of the substrate. The second signal line is arranged in the display area of the substrate, wherein the first signal line and the second signal line intersect. The first signal internal transfer lines are arranged in the display area of the substrate, wherein each first signal internal transfer line is electrically connected to a corresponding first signal line, and each first signal internal transfer line is arranged on an adjacent first signal line. Between the two signal lines. Each first signal internal transition line crosses the first signal line, and each first signal internal transition line has the same number of crossing points as the first signal line.

In the present invention, by changing the configuration of the signal lines or adjusting the RC delay of some signal lines, all the signal lines have the same load effect, so that the display device will not have adverse effects on the display quality due to the uneven load effect. In addition, the present invention can realize a display device with a narrow frame by arranging an internal transfer line.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained according to these drawings without any creative effort.

FIG. 1 illustrates a schematic diagram of a conventional display device.

FIG. 2 is a schematic diagram of a display device according to a first preferred embodiment of the present invention.

FIG. 3 is a schematic diagram of a display device according to a second preferred embodiment of the present invention.

FIG. 4 is a schematic diagram of a display device according to a third preferred embodiment of the present invention.

Reference number

10 Display device 12 Substrate

12D Display Area 12C Chip Connection Area

14 Gate Lines 16 Data Lines

18 Connecting wires 20 Driver chip

30 Display device 32 Substrate

32D display area 32P peripheral area

32C Chip connection area 34 The first signal line

341 The first group of first signal lines 342 The second group of first signal lines

35 Connecting plug 36 Second signal line

38 First signal internal transfer wiring 40 Driver chip

40A 1st signal driver 40B 2nd signal driver

42 External transfer cable for the first signal 50 Display device

60 display device

Detailed ways

In order to enable those who are familiar with the technical field of the present invention to further understand the present invention, several preferred embodiments of the present invention are listed below, together with the accompanying drawings, to describe in detail the composition of the present invention and the desired effects .

Please refer to Figure 2. FIG. 2 is a schematic diagram of a display device according to a first preferred embodiment of the present invention. As shown in FIG. 2 , the display device 30 of this embodiment includes a substrate 32 , and the substrate 32 includes a display area 32D, a peripheral area 32P, and a chip connection area 32C. In this embodiment, the display device 30 may be a liquid crystal display device, but not limited thereto, and may be other types of display devices. The display device 30 includes a plurality of first signal lines 34, a plurality of second signal lines 36, and a plurality of first signal internal transfer lines 38 disposed in the display area 32D of the substrate 32, wherein each first signal internal transfer line 38 is respectively It is electrically connected with a corresponding first signal line 34 . The first signal line 34 and the second signal line 36 are arranged in a staggered manner and the two are substantially perpendicular to each other, while the first signal internal transfer line 38 is generally parallel to the second signal line 36; in addition, the first signal internal transfer line 38 and the second signal lines 36 are alternately arranged at intervals, that is, each first signal internal transfer line 38 is arranged between adjacent second signal lines 36 , but not limited thereto. The display device 30 further includes a driver chip 40 disposed in the chip connection area 32C of the substrate 32, wherein the driver chip 40 includes at least one first signal driver 40A electrically connected to the first signal internal transfer line 38, and at least one second signal driver 40A. The signal driver 40B is electrically connected to the second signal line 36 . In this embodiment, the first signal line 34 is a gate line, and the second signal line 36 is a data line; in addition, the first signal driver 40A is a gate driver, and the second signal driver 40B is a source driver. With the arrangement of the first signal internal transfer line 38 , the gate driver can provide the gate signal to the gate line through the first signal internal transfer line 38 , while the source driver can directly provide the data signal to the data line. The application of the present invention is not limited thereto. For example, the first signal line 34 can be a data line, and the second signal line 36 can be a gate line. The electrode driver is electrically connected, and the gate line is directly electrically connected with the gate driver.

In this embodiment, each first signal internal transfer line 38 intersects with the first signal line 34, and the first signal internal transfer lines 38 generally have the same length, so each first signal internal transfer line 38 is connected to all The first signal lines 34 intersect and overlap in the vertical direction to form intersection points, and each first signal internal transfer line 38 has the same number of intersection points as the first signal lines 34 . For example, if the resolution of the display device 30 is 800×600, the number of the first signal lines 34 serving as gate lines in this embodiment is 600, and each first signal internal transfer line 38 is connected to a The corresponding first signal line 34 is electrically connected through the connecting plug 35 , and partly overlaps and crosses with other 599 first signal lines 34 but is not electrically connected. The intersection of the first signal internal transfer line 38 and the first signal line 34 will generate a load due to the coupling effect, and since the number of intersection points between the first signal internal transfer lines 38 and the first signal line 34 in this embodiment is the same , therefore, each of the first signal internal transfer lines 38 will generate a similar loading effect, thereby enabling the display device 30 to have a uniform loading effect, thereby improving the display quality of the display device 30 .

In order to simplify the description and compare the differences between the various embodiments of the present invention, in the following disclosed embodiments of the present invention, the same reference numerals are used to mark the same components, and repeated description of the same components will not be repeated. Please refer to Figure 3. FIG. 3 is a schematic diagram of a display device according to a second preferred embodiment of the present invention. As shown in FIG. 3 , because under certain display resolution specifications, the number of first signal internal transfer wires 38 may not match the number of second signal wires 36, the space between adjacent second signal wires 36 The layout of all the first signal internal transfer wires 38 cannot be accommodated, so that part of the first signal wires 34 cannot be electrically connected to the driver chip 40 through the transfer of the first signal internal transfer wires 38 . Therefore, the display device 50 of this embodiment further includes a plurality of first signal external transfer lines 42 disposed in the peripheral area 32P. In this embodiment, the first signal lines 34 can be divided into a plurality of first signal lines 341 of the first group and a plurality of first signal lines 342 of the second group, wherein each first signal internal transfer line 38 is respectively connected to the corresponding A first group of first signal wires 341 are electrically connected, and thereby the first group of first signal wires 341 can be electrically connected to the driver chip 40 through the first signal internal transfer wire 38, and each first signal external transfer wire 42 are respectively electrically connected to a corresponding second set of first signal lines 342 , so that the second set of first signal lines 342 can be electrically connected to the driver chip 40 through the first signal external transfer lines 42 .

In this embodiment, both ends of the first signal lines 341 of the first group and the first signal lines 342 of the second group extend to both sides from the display area 32D and cross all the first signal external transfer lines 42 , In this way, the number of intersections between each first signal external transfer line 42 and the first signal line 34 will be the same as the number of intersections between each first signal internal transfer line 38 and the first signal line 34, so that the first signal external The transfer line 42 has a similar loading effect as the first signal internal transfer line 38 . Therefore, even if the first signal external transfer line 42 is provided, the display device 50 can have a uniform loading effect and maintain stable display quality.

Please refer to Figure 4. FIG. 4 is a schematic diagram of a display device according to a third preferred embodiment of the present invention. As shown in Figure 4, compared with the second preferred embodiment, this embodiment does not use the method of extending the first signal line 34 arranged in the display area 32D to the peripheral area 32P to increase the first signal external transfer line 42 loading effects. Instead, the display device 60 of this embodiment adjusts the load by changing the resistance R of the first signal external transfer line 42 or connecting the first signal external transfer line 42 in series with a capacitor C. For example, the resistance value of the resistor R can be increased by changing the length or width of the first signal external transfer wire 42, or the capacitance of the capacitor C can be changed by electrically connecting the other end of the capacitor C to a signal source such as an AC signal source Value, thereby changing the RC delay of the first signal external transfer line 42, so that the first signal external transfer line 42 and the first signal internal transfer line 38 have a similar loading effect.

To sum up, the present invention makes use of changing the configuration of the signal lines, or adjusting the RC delay of some signal lines, so that all the signal lines have a similar loading effect, so that the display device will not be affected by the uneven loading effect. Display quality is adversely affected. In addition, the present invention can realize a display device with a narrow frame by arranging an internal transfer line.

The above descriptions are only preferred embodiments of the present invention, and all equivalent changes and modifications made according to the claims of the present invention shall fall within the scope of the present invention.

Claims (11)

1. a display device is characterized in that, described display device comprises:

One substrate comprises a viewing area;

Plurality of first signal lines is arranged in the described viewing area of described substrate;

A plurality of secondary signal lines are arranged in the described viewing area of described substrate, and wherein said these first signal wires and described these secondary signal lines are staggered; And

A plurality of first signal internal switching lines, be arranged in the described viewing area of described substrate, wherein each described first signal internal switching line electrically connects with corresponding one first signal wire respectively, and each described first signal internal switching line is arranged between adjacent described these secondary signal lines;

Wherein each described first signal internal switching line intersects with described these first signal wires, and each described first signal internal switching line and described these first signal wires have the point of crossing of similar number.

2. display device as claimed in claim 1 is characterized in that, each described first signal internal switching line is provided with described these secondary signal line parallels substantially.

3. display device as claimed in claim 1 is characterized in that, described these first signal wires are a plurality of gate lines, and described these secondary signal lines are a plurality of data lines.

4. display device as claimed in claim 1 is characterized in that, described these first signal wires are a plurality of data lines, and described these secondary signal lines are a plurality of gate lines.

5. display device as claimed in claim 1 is characterized in that, described these first signal internal switching lines and described these secondary signal lines are provided with the interval over-over mode.

6. display device as claimed in claim 1, it is characterized in that, described display device comprises the outside patchcord of a plurality of first signals in addition, wherein said substrate comprises a surrounding zone that is positioned at around the described viewing area in addition, the outside patchcord of described these first signals is arranged in the described surrounding zone, and described these first signal wires can be divided into a plurality of first group of first signal wire and a plurality of second group of first signal wire, each described first signal internal switching line electrically connects with corresponding described first group of first signal wire respectively, and the outside patchcord of each described first signal electrically connects with corresponding described second group of first signal wire respectively.

7. display device as claimed in claim 6 is characterized in that, the outside patchcord of described these first signals is parallel to each other with described these first signal internal switching lines substantially.

8. display device as claimed in claim 6, it is characterized in that, described these first signal wires extend to described surrounding zone from described viewing area, the outside patchcord of each described first signal all intersects with described these first signal wires, and each described first signal outside patchcord and described these first signal wires have the point of crossing of similar number.

9. display device as claimed in claim 6 is characterized in that, the outside patchcord of each described first signal electrically connects with an electric capacity respectively.

10. display device as claimed in claim 9 is characterized in that, each described electric capacity is connected with an ac signal source.

11. display device as claimed in claim 6 is characterized in that, the resistance value of the outside patchcord of each described first signal is greater than the resistance value of each described first signal internal switching line.

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