Unlock instant, AI-driven research and patent intelligence for your innovation.

Active matrix circuit substrate and display device

A circuit substrate and active matrix technology, which is applied in the field of active matrix circuit substrates, can solve the problems of small display area, inability to deal with, and no consideration of TFT panel active matrix drive, etc., to achieve large display area and reduce power consumption Effect

Inactive Publication Date: 2008-09-17
SEIKO EPSON CORP
View PDF1 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in this patent document 1, the active matrix driving by the TFT panel is not taken into consideration, so it cannot cope with the above-mentioned desire for display by active matrix driving.
[0007] As described above, in order to avoid through-holes in an active-matrix high-definition display device, it is necessary to detour wiring such as data lines (signal lines) and scanning lines (scanning lines) through the through-holes. The wiring is arranged so as to detour through the through hole, and the pixel driving circuit for driving the pixel electrode cannot be arranged at the position where the wiring is formed.
In particular, if it is a high-resolution display device, the number of detour wiring becomes very large, and the area for forming the pixel driving circuit is also limited.
As a result, the display cannot be performed around the through hole, so the overall display area becomes smaller.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Active matrix circuit substrate and display device
  • Active matrix circuit substrate and display device
  • Active matrix circuit substrate and display device

Examples

Experimental program
Comparison scheme
Effect test

no. 1 Embodiment approach

[0063] Next, a first embodiment of the present invention will be described based on the drawings.

[0064] figure 1 It is a front view of the wristwatch 1 provided with the display device concerning this embodiment.

[0065] As shown in the figure, a wristwatch 1 is mainly composed of a case 2 and a pair of straps 3 connected to the case 2 .

[0066] The watch case 2 is made of metal such as stainless steel or resin such as plastic resin. On the front of the watch case 2, a display device 5, a second hand 21, a minute hand 22, and an hour hand 23 are provided. On the side surface of the watch case 2, a tap 10 and an operation button 11 are provided as operation parts. The faucet 10 is connected to a mainspring (not shown) provided inside the casing, and is provided integrally with the mainspring so as to be freely pushable, pullable, and rotatable over a plurality of stages (for example, two stages).

[0067] FIG. 2 is a side sectional view of the wrist watch 1 .

[0068]...

no. 2 Embodiment approach

[0099] Next, a second embodiment of the present invention will be described. Figure 12 It is a plan view showing the structure of the display device 105 according to this embodiment.

[0100] In this embodiment, the display device 105 has substantially the same structure as the display device 5 of the first embodiment, but differs from the first embodiment in the following point: in addition to the pixel electrodes 135 arranged in a matrix, there are also The pixel electrode 135 c extends from the outside of the avoiding portion 152 to the inside of the avoiding portion 152 .

[0101] According to such a mechanism, since the pixel electrode 135c can also be provided in the avoiding portion 152, not only the same effect as that of the first embodiment can be obtained, but also the effect of being able to expand the display area can be obtained.

no. 3 Embodiment approach

[0103] Next, a third embodiment of the present invention will be described. Figure 13 It is a plan view showing the structure of the display device 205 according to this embodiment.

[0104] In this embodiment, the display device 205 has substantially the same structure as the display device 5 of the first embodiment, but differs from the first embodiment in that, in addition to the pixel electrodes 235 arranged in a matrix, it is also covered with A ring-shaped pixel electrode 235c is provided in the form of the avoiding portion 252 .

[0105] According to such a mechanism, like the second embodiment, the pixel electrode 235c can also be provided in the avoiding portion 252, so that not only the same effect as the first embodiment can be obtained, but also the effect of being able to expand the display area can be obtained.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a display device driven by an active matrix that does not lead to display quality declining and product cost rising greatly, and ensures larger display area, the invention also provides an active matrix circuit substrate as a structure component. By using a method of a low voltage power line and high voltage power line being centralized on a pixel drive circuit of a drive pixel electrode in the periphery of a perforation hole, a low voltage connection part and a high voltage connection part that are connected with the low voltage power line and the high voltage power line respectively, thus, set space by the power line is centralized and saved. Because space of the low voltage power line and high voltage power line is saved in an avoidance portion, display area can increase saved amount.

Description

technical field [0001] The present invention relates to an active matrix circuit board provided with drive electrodes and a wiring pattern, and a display device provided with the active matrix circuit board. Background technique [0002] In recent years, along with the spread of various display devices (displays) composed of electro-optical devices, studies have been conducted on the use of such display devices for display units of clocks, various instruments, and the like. As such a display device (display) used as a display unit of a clock, various instruments, etc., it is necessary to form a through hole in order to attach, for example, a pointer for displaying the time on the clock or displaying the scale (numerical value) on the instrument. As a display device in which through holes are formed, a liquid crystal display device based on a passive matrix driven STN liquid crystal has been proposed (for example, refer to Patent Document 1). [0003] Patent Document 1: JP-A...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/167G09G3/34G09G3/20
CPCG02F1/1343G02F2201/123G09G3/3648G09G3/3696
Inventor 下平泰裕
Owner SEIKO EPSON CORP