JPS5843005Y2 - Dot matrix display panel - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement of a dot matrix type display panel, in particular a dot matrix type display panel having a new electrode arrangement that reduces the number of terminals for connection to an external circuit without impairing display quality. This invention relates to a matrix type display panel.

As dot matrix type display panels, gas discharge panels, EL display panels, liquid crystal display panels, etc., which are called plasma display panels, are well known.

In these display panels, control electrodes corresponding to the vertical columns and control electrodes corresponding to the horizontal columns of each display dot are usually individually derived.

However, in the conventional configuration, 1. n+m control electrodes are required for display dots in ian columns and m rows horizontally, and a drive circuit for selecting each display dot must be connected to each, making the structure of the drive circuit complicated and expensive. There were some drawbacks.

The object of the present invention is to simplify the control electrode wiring in a dot/71-ricks type display panel, thereby providing a display panel that can be driven with an inexpensive and simple circuit configuration.

In order to achieve such an object, according to the present invention, in a dot matrix type display panel having a plurality of unit display blocks each including a plurality of vertical and horizontal display dots arranged in a matrix, there is a Control electrodes are commonly connected to control electrodes of other unit display blocks on the panel at least every other block and led out to a plurality of terminals, and the control electrodes corresponding to the horizontal rows of each unit display block are connected to the control electrodes of the vertical columns. A dot matrix display panel is proposed in which control electrodes belonging to blocks whose electrodes are not in a common connection relationship are commonly connected on the panel and led out to a plurality of terminals.

To be more specific, the dot matrix type display panel of the present invention has N pixels connected in series in a first direction.
M column electrodes consisting of display dots are arranged at a predetermined pitch in a second direction perpendicular to the first direction, and on the other hand, these column electrodes are arranged facing each other with a gas discharge space in between and arranged in a predetermined manner in the first direction. At least four unit display blocks in a dot matrix arrangement each having book row electrodes extending at a pitch in the second direction are arranged at predetermined intervals in the second direction, and at least four unit display blocks are arranged at predetermined intervals in the second direction. Multiple display dots divided into second blocks and arranged alternately.
In a panel configuration having a matrix and in which the column electrodes corresponding to display dots belonging to each block are commonly connected, a drawer for driving a first group of column electrodes extends from one end of the substrate on which the column electrodes are arranged. An electrode is connected to one end of the first dot matrix of the first block on the upper side in the first direction, and an extraction electrode for driving a column electrode extends from the other end of the first dot matrix on the lower side in the first direction along the second direction. The dot matrix is arranged so as to pass in front of the first dot matrix of the second block to be placed next, detour and connect to the upper end of the second dot matrix of the subsequent first block in the first direction, and similarly An extraction electrode for driving a second block column electrode extending from one end of the substrate connects to one end of the first dot matrix of the second block on the lower side in the first direction, and a column extending from the other end on the upper side in the first direction. The electrode driving extraction electrode is arranged so as to pass through the front side of the second dot matrix of the first block, make a detour, and connect to one end of the second dot matrix of the second block on the lower side in the first direction. It is characterized by this.

The present invention will be explained below according to the drawings.

FIG. 1 is a plan view showing a general dot matrix type panel configuration, taking a gas discharge panel as an example, and FIG. 2 is a view taken in the direction of arrow A in FIG.

However, Dl and D2 in the figure represent a dot matrix for one character.

Column electrode X1. X2...X5, X6゜X7...
... extend in the first direction on the first glass substrate 1, and the row electrodes Y1. Y2...Y7 extends on the second glass substrate 2 in the second direction.

These column and row electrodes face each other with a gas discharge space in between, and a discharge is caused at the intersection to form one picture element.

When manufacturing one pixel, the method shown in FIG. 1 has the disadvantage that it becomes expensive because it requires connecting a drive circuit to each of the column electrodes and row electrodes through respective extraction electrodes.

A display panel capable of time-division writing drive eliminates this drawback, and in the case of dot/7-trix displays D1', D2', D3' and D4' for four characters, a configuration as shown in Fig. 3 is used. Take.

Further, the arrow view B is as shown in FIG.

However, components that are the same as those in FIGS. 1 and 2 are given the same reference numbers.

In FIG. 3, the first dot matrix and the second dot matrix of the first group are indicated by D4' and D2', and the first dot matrix and the second dot matrix of the second group are indicated by D3' and DI'. It is indicated by.

Further, column electrodes X1 to X5 and X6 corresponding to each group
~XIO are the extraction electrode 30-1 for driving the first group column electrode and the extraction electrode 30 for driving the second group column electrode, respectively.
-2.

Similarly, the first group row electrodes Y1 to Y7 and the second group tank column electrodes Y8 to Y14 on the glass substrate 2 are the first group row electrode driving extraction electrode 31-1 and the second group row electrode driving extraction electrode 31, respectively. -2.

Originally, the extraction electrode for driving the first group tank row and column electrode is 1.
A total of two dot matrices are obtained: one for only a character, and another dot matrix for only one character for the second group tank row and the extraction electrode for driving the column electrodes, but as shown in Fig. 3, for each group If the corresponding column electrodes are connected in common, a dot matrix display for twice as many four characters can be obtained.

However, the first and second column electrodes and the first and second
A time division circuit must be used to sequentially scan the row electrodes at high speed.

This time division is performed at a period of about 15 or so.

However, according to the lead-out electrode structure as shown in FIG. 3, in the area surrounded by C and D in the figure, the column electrode connection line 50 and the first column electrode drive line are connected as shown in an enlarged view in FIG. 5 (with respect to circle C). An insulating separation layer 51 for crossover is required to prevent the lead electrode 301 from electrically crossing.

The necessity of providing this insulating separation layer 51 is undesirable from the viewpoint of the work process or economy, and there is a need for an extraction electrode wiring structure that can eliminate this.

This problem was solved by the extraction electrode structure of a gas discharge panel based on the first embodiment of the present invention shown in FIG.

The characteristic part that made this invention possible is the first dot in the first group.
Matrix D4' and second dot matrix d2'
corresponding column electrodes are connected in series, and the first and second dot matrices D of the second group are connected in series.
This is because the corresponding column electrodes 3' and DI' are connected in series, and thereby the insulating separation layer 51 of FIG. 5 is completely unnecessary.

In the above embodiment, the case where there are four dot matrices is shown, but it goes without saying that the present invention can be applied to cases where there are four or more dot matrices.

As explained above, according to the present invention, in a dot matrix type display panel employing a dynamic driving method, the gap between two adjacent unit display blocks of different types is used as a pattern for commonly connecting the column electrodes of unit display blocks of the same group. Since the connection pattern extends along and detours along the display block, it is possible to commonly connect the column electrodes of the same rank in the display blocks of the same adjacent group without the need for a crossover material. Panel lead-out electrodes can be created in one process.

Furthermore, when performing block sequential driving, it is possible to commonly drive a plurality of column discharge points in the same group of display blocks in the forward direction, and there is an advantage that a digit sequential driving circuit provided in a conventionally known segment type display can be used.

Furthermore, since the detour connection pattern is configured such that one group of column electrodes regularly detours through the gaps between adjacent unit display blocks, the spacing between each display block, that is, the display spacing can be made uniform, and a well-balanced Since the display mode can be displayed, the display quality can be improved.

Furthermore, since the detour connection pattern is a mode in which electrodes of the same rank in the same group block are connected in series and led out to the extraction electrode, disconnection of the electrodes and connection electrodes after pattern fabrication can be inspected at the same time in one operation. You can also expect the effect of being able to do it.

[Brief explanation of drawings]

Figure 1 is a plan view showing a general dot matrix.
Fig. 2 is a view taken in the direction of arrow A in Fig. 1, Fig. 3 is a plan view showing the dot matrix arrangement and its extraction electrode arrangement required for dynamic driving, and Fig. 4 is the same as Fig. 3. Figure 8 and Figure 5 are enlarged views of the circle C section in Figure 3;
FIG. 6 is a plan view showing an embodiment based on the present invention. In the figure, 1 and 2 are the first and second glass substrates, 30-1 and 30-2 are electrodes for extracting the first and second group column electrodes, respectively, 311 and 31
-2 are electrodes for extracting the first group and second group tank column electrodes, D4' and D2' are the first and second dot matrices of the first block, respectively, D3' and Di
' are the first and second dot matrices of the second block, respectively.

Claims (1)

[Scope of utility model registration request] A plurality of unit display blocks including display dots formed between a plurality of column electrodes and a plurality of row electrodes provided on an upper panel substrate and a lower panel substrate facing each other so as to form a matrix are provided. In the dot matrix type display panel, the plurality of unit display blocks D1', D2', D3', D4 are divided into odd numbered groups D1', D3' and even numbered groups D2', D4', The control electrodes X1 to XIO corresponding to the plurality of columns in the unit display block of each group are the same-ranked electrodes X1 to X5 . X6 to XIO are commonly connected on the upper panel substrate 2 by a connection pattern that bypasses the non-display area on the side surface of the unit display block belonging to the other group, thereby forming a plurality of terminals 30-1.
Control electrodes Y1 to Y14, which are derived from 30-2 and correspond to a plurality of rows of each of the unit display blocks, connect electrodes of the same rank in two adjacent unit display blocks having different group relationships to the bottom panel. A dot matrix type display panel characterized in that the terminals are commonly connected on the substrate 1 and led out to a plurality of terminals 31-1 and 31-2.