JP4569453B2 - Liquid crystal display and liquid crystal display device using the same - Google Patents

Description

  The present invention relates to a dot matrix display type liquid crystal display and a liquid crystal display using the liquid crystal display.

  As a liquid crystal display, there is a dot matrix display type. In this case, display units (pixels) are arranged in a vertical and horizontal matrix, and characters, figures, etc. are displayed by combining a plurality of display units.

  Specifically, such a liquid crystal display includes a plurality of first transparent electrodes extending in one direction between first and second light-transmitting substrates disposed opposite to each other, and a liquid crystal material. And a plurality of second transparent electrodes extending in a direction crossing the first transparent electrode. A portion where the first and second transparent electrodes intersect is a display unit, and a region where the intersecting portion is present in the first and second translucent substrates is a display region ( Patent Document 1).

In addition, in a liquid crystal display device in the field of an on-vehicle meter or the like, a non-display area around the display area and where the first and second transparent electrodes intersect is not covered in the liquid crystal display. In general, a liquid crystal display is used by covering the display area with the display area exposed from the opening of the cover member.
JP-A-2005-250280

  In the conventional liquid crystal display, since there is a non-display area on the outer periphery of the display area, when the liquid crystal display is mounted on a liquid crystal display device, other parts located around the liquid crystal display and the display area It is necessary to make the distance to be greater than the width of the non-display area.

  For this reason, depending on the size of this non-display area, even if it is desired to mount a liquid crystal display near other parts, the non-display area interferes with other parts, so the liquid crystal display cannot be mounted. May occur.

  Further, in a liquid crystal display device that uses a liquid crystal display by covering the non-display area of the liquid crystal display with a cover member and exposing the display area from the opening of the cover member, the non-display area of the liquid crystal display is Since it is not visually recognized, the material which comprises the 1st, 2nd translucent board | substrate is used wastefully.

  In view of the above, the present invention has a first object to provide a liquid crystal display capable of improving the mountability of a liquid crystal display on a liquid crystal display device. In addition, when a non-display area of a liquid crystal display is covered with a covering member, a liquid crystal display device capable of reducing the materials constituting the first and second light-transmitting substrates as compared with a conventional liquid crystal display device is provided. Is the second purpose.

  In order to achieve the above object, in the liquid crystal display of the present invention, the first and second translucent substrates (11, 12) are arranged such that the second side (11a) of the first translucent substrate in the second region (5). ) And the display area (4) is a first distance (A) between the first side (12b) of the second light-transmissive substrate (12) and the display area (4) in the first area (6). The shape is shorter than the interval (B).

Here, the first translucent substrate (11) is perpendicular to the first side (11b) and the second side (11a) parallel to each other, and the first side (11b) and the second side (11a), There are a third side (11c) and a fourth side (11d) parallel to each other, and there are a plurality of intersections (16) between the second side (11a) and the first and second transparent electrodes (14, 15). The first distance (A) from the display area (4) is a fixed shape. Moreover, the control part (13) is arrange | positioned between the 1st edge | side (11b) of the 1st translucent board | substrates (11), and the 1st transparent electrode (14). The first wiring (17) includes a first region (6) between the plurality of first transparent electrodes (14) of the first light-transmissive substrate (11) and the control unit (13), and a second side. Of the second region (5) between (11a) and the first transparent electrode (14), it is formed only in the first region (6). For this reason, a 1st, 2nd translucent board | substrate can be made into the shape mentioned above. The second light transmitting substrate (12) is perpendicular to the first side (12b) and the second side (12a) parallel to each other and to the first side (12b) and the second side (12a), and It has a parallel third side (12c) and fourth side (12d), and the position of the second side (12a) of the second translucent substrate is the second side (11a) of the first translucent substrate. The positions of the third side (12c) and the fourth side (12d) of the second translucent substrate coincide with the third side (11c) and the fourth side (11d) of the first translucent substrate, respectively. The first side (12b) of the second translucent substrate is located between the control unit (13) and the first transparent electrode (14) in the first translucent substrate (11) , and the second translucent substrate (11) is located. The second distance (B) between the first side (12b) of the optical substrate and the display area (4) is a constant shape. The first transparent electrode (14) extends in a direction perpendicular to the first sides (11b, 12b) of the first and second translucent substrates, and the second transparent electrode (15) 1. It extends in a direction parallel to the first side (11b, 12b) of the second translucent substrate.

  By the way, in the conventional liquid crystal display, the distance (A) between the second side (11a, 12a) and the display area (4) of the first and second translucent substrates and the second translucent substrate (12). The distance (B) between the first side (12b) and the display area (4) was substantially the same.

  Therefore, according to the present invention, as compared with such a conventional liquid crystal display, the width of the non-display area located between the second side of the first and second translucent substrates and the display area is reduced. be able to.

  As a result, in the liquid crystal display device, when the liquid crystal display is mounted in the vicinity of other components, the distance between the other components and the display area can be reduced, thereby reducing the case where the non-display area interferes with other components. be able to. As a result, the mountability of the liquid crystal display device on the liquid crystal display device can be improved.

Further, in the present invention, a plurality of second transparent electrodes (15) are provided in a region (7) between the third side (12c) and the display region (4) in the second light transmitting substrate (12). Among them, the second wiring (18) connected to the second transparent electrode (15) located on the side farther from the control unit (13) than the specific second transparent electrode (15) is arranged, and the fourth In the region (8) between the side (12d) and the display region (4), among the plurality of second transparent electrodes (15), the control unit (13) is more than the specific second transparent electrode (15). are second wiring (18) is arranged in which the second is connected to the transparent electrode (15) positioned near the side,
The width of the second wiring (18) formed in the region (8) between the fourth side (12d) and the display region (4) is set between the third side (12c) and the display region (4). The shape of the first and second light transmitting substrates (11, 12) is made smaller than the width of the second wiring (18) formed in the region (7), and the respective fourth sides (11d, 12d) are formed. an interval of the display area (4) (D) have been characterized by each of the third side and (12c) and the shorter shape than the distance (C) of the display area (4).

  By doing in this way, the shape of the 1st, 2nd translucent board | substrate (11, 12) is the shortest distance (D) from a 4th edge | side (12d) to an intersection part (16), and a 3rd edge | side ( Compared with the case where the shortest distance (C) from 12c) to the intersection (16) is substantially the same, the shape of the first and second light-transmitting substrates (11, 12) can be reduced. As a result, the mountability of the liquid crystal display device on the liquid crystal display device can be further improved.

  Further, the liquid crystal display (1) having the above-described features is arranged around the display area (4) by the covering member (2) disposed on the front side of the liquid crystal display (1) and having the opening (3). The liquid crystal display is used by covering the non-display area (5, 6, 7, 8) where the intersection (16) does not exist and exposing the display area (4) from the opening (3). The apparatus has the following effects.

  Of the liquid crystal display, the portion covered with the covering member is not visually recognized by humans, and thus the design is not affected. Therefore, the non-display area of the first and second translucent substrates can be reduced without hindering the use of the liquid crystal display. For this reason, the material which comprises a 1st, 2nd translucent board | substrate can be reduced.

  In addition, the code | symbol in the bracket | parenthesis of each means described in the claim and this column is an example which shows a corresponding relationship with the specific means as described in embodiment mentioned later.

(Embodiment serving as a reference example of the present invention )
FIG. 1 shows a schematic configuration of a liquid crystal display device according to an embodiment as a reference example of the present invention. Note that the liquid crystal display device of the present embodiment is a liquid crystal display device mounted on a vehicle, and more specifically, is used as a part of a meter installed on an instrument panel. Information that informs the occupant of warnings, door open / close states, and the like is displayed.

  As shown in FIG. 1, the liquid crystal display device includes a liquid crystal display 1, a dial 2 as a cover member disposed on the front side (viewer side, front side in the figure) of the liquid crystal display 1, and a liquid crystal display. A back light (not shown) and the like arranged on the back side (back side in the figure) of the container 1 are provided.

  The dial 2 also serves as a meter dial, for example. The dial 2 is plate-shaped and has a rectangular opening 3. The display area 4 of the liquid crystal display 1 is visible through the opening 3, and the peripheral areas 5, 6, 7, 8 located around the display area 4 are covered with the dial 2. . Therefore, in FIG. 1, the liquid crystal display 1 located on the back side of the dial 2 is indicated by a broken line.

  Although not shown, other components are arranged around the liquid crystal display 1 on the rear surface side (back side in the drawing) of the dial 2.

  The liquid crystal display 1 is a negative type liquid crystal display in which a display method is a dot matrix method, a driving method is a simple matrix method, a display form is a transmission type. In addition, not only a transmission type but a reflection type can also be used.

  Specifically, as shown in FIG. 1, the liquid crystal display 1 includes a first light-transmitting substrate 11 and a second light-transmitting substrate 12 that are disposed to face each other, and both the substrates 11 and 12. The liquid crystal material (not shown) arrange | positioned and the driver IC13 as a control part provided on the 1st translucent board | substrate 11 are provided.

  The 1st translucent board | substrate 11 and the 2nd translucent board | substrate 12 are board | substrates comprised with the translucent material, for example, are glass substrates.

  Moreover, both the 1st translucent board | substrate 11 and the 2nd translucent board | substrate 12 are rectangles, the upper sides 11a and 12a as a 2nd side, the lower sides 11b and 12b as a 1st side, and as a 3rd side Left side 11c, 12c and right side 11d, 12d as the fourth side. The upper sides 11a and 12a and the lower sides 11b and 12b are long sides that face each other, and the left sides 11c and 12c and the right sides 11d and 12d are short sides that face each other. Further, the driver IC 13 is disposed on the lower side 12b side (near the lower side 12b) from the center of the first translucent substrate 11.

  In the liquid crystal display 1 shown in FIG. 1, the second light transmissive substrate 12 is overlaid on the upper side (the front side in the drawing) of the first light transmissive substrate 11. And when the 2nd translucent board | substrate 12 was piled up with the 1st translucent board | substrate 11, mutual upper sides 11a and 12a, left sides 11c and 12c, and right sides 11d and 12d corresponded ( Note that the lower side 11b of the second translucent substrate 12 is parallel to the lower side 12b of the first translucent substrate 11 and is positioned between the driver IC 13 and the display area 4). As described above, the vertical length (the width from the upper side 12a to the lower side 12b) is shorter than the vertical length (the width from the upper side 11a to the lower side 11b) of the first translucent substrate 11. That is, when the second light-transmitting substrate 12 is overlapped with the first light-transmitting substrate 11, a region of the first light-transmitting substrate 11 excluding the driver IC 13 (in FIG. 1, above the driver IC 13). (Region).

  In addition, among the overlapping regions of the first and second light-transmitting substrates 11 and 12, a region located near the center surrounded by the one-dot chain line in the figure is a display region in which characters, graphics, etc. are displayed 4. The shape of the display region 4 is also a rectangle, and the display region 4 is on the inner side of each side of the second light-transmitting substrate 12, and the long sides and the short sides with respect to the second light-transmitting substrate 12. Are arranged in parallel. On the other hand, peripheral areas located around the display area 4 (upper side, lower side, left side, and right side of the display area 4 in the figure) are non-display areas in which nothing is displayed (upper non-display area 5, lower non-display area 6). Left side non-display area 7 and right side non-display area 8).

  The width A of the upper non-display area 5 as the first interval (interval between the upper sides 11a, 12a and the display area 4) A is the width of the lower non-display area 6 as the second interval (second translucent substrate). 12 is smaller than B). In the present embodiment, the width of the left non-display area 7 (the distance between the left sides 11c and 12c and the display area 4) C and the width of the right non-display area 8 (the distance between the right sides 11d and 12d and the display area 4). D is the same size.

  In addition, a plurality of first transparent electrodes and first wirings are formed on the surface of the first light transmissive substrate 11 so as to be positioned between the first light transmissive substrate 11 and the liquid crystal material. A plurality of second transparent electrodes and second wirings are formed on the surface of the second light transmissive substrate 12 so as to be positioned between the liquid crystal material and the second light transmissive substrate 12.

  Here, FIG. 2 shows a layout of the first transparent electrode, the second transparent electrode, the first wiring, and the second wiring. FIG. 2 is a front transparent view of the liquid crystal display 1 of FIG. 1. In FIG. 2, the same reference numerals as those in FIG.

  As shown in FIG. 2, the plurality of first transparent electrodes 14 are arranged in the vertical direction in the drawing, that is, in the direction perpendicular to the upper sides 11 a and 12 a and the lower sides 11 b and 12 b of the first and second translucent substrates 11 and 12. It is extended and arranged at equal intervals. On the other hand, the plurality of second transparent electrodes 15 are arranged in the horizontal direction in the drawing, that is, the upper sides 11a and 12a and the lower sides 11b of the first and second translucent substrates 11 and 12 so as to be orthogonal to the first transparent electrode 14, It extends in a direction parallel to 12b and is arranged at equal intervals.

  In the liquid crystal display 1, a portion 16 where the first transparent electrode 14 and the second transparent electrode 15 intersect (hereinafter referred to as the intersecting portion 16) is displayed as a dot (display unit). A region where a plurality of these intersections 16 exist is the display region 4 in FIG. Further, the above-described distance A is the distance from the upper sides 11a, 12a of the first and second light-transmitting substrates 11, 12 to the intersecting portion 16, and the above-described distance B is the lower side 12b of the second light-transmitting substrate 12. To the intersection 16.

  The first wiring 17 is for electrically connecting the first transparent electrode 14 and the driver IC 13. Specifically, the first wiring 17 includes a lower non-display area among the lower non-display area 6 as the first area of the first light-transmissive substrate 11 and the upper non-display area 5 as the second area. It is formed only in the region 6 and is connected to the lower end portion (end portion on the driver IC 13 side) of the first transparent electrode 14 in the drawing and the driver IC 13. 2 shows the first wiring 17 connected to the first transparent electrode 14 located on the right half side in the drawing, and is connected to the first transparent electrode 14 located on the left half side in the drawing. The first wiring 17 is omitted.

  The second wiring 18 is for electrically connecting the second transparent electrode 15 and the driver IC 13. Specifically, the second wiring 18 formed in the left non-display area 7 and the right non-display area 8 of the second translucent substrate 12 is separated from the driver IC 13. The second wiring 18 formed in the right non-display area 8 is connected to the second transparent electrode 15 located on the side (upper half in the figure) and located on the side close to the driver IC 13 (lower half in the figure). Of the second transparent electrode 15. The second wiring 18 is disposed so as to reach the driver IC 13 from the left non-display area 7 and the right non-display area 8 through the lower non-display area 6.

  Although not shown, the second wiring 18 formed in the left non-display area 7 is made of the same material as the second wiring 18 formed in the right non-display area 8 and has the same line width and It has become.

  Thus, the lower non-display area 6 located between the display area 4 and the driver IC 13, that is, between the lower sides 11 b and 12 b of the first and second translucent substrates 11 and 12 and the intersection 16. A first wiring 17 and a second wiring 18 are formed in the region 6. On the other hand, no wiring is formed in the upper non-display area 5, that is, the area 5 between the upper sides 11 a and 12 a of the first and second translucent substrates 11 and 12 and the intersection 16.

  Therefore, the width B of the lower non-display area 6 needs to be widened in order to secure a wiring space from the display area 4 to the driver IC 13. Since there is no restriction, the width A of the upper non-display area 5 can be made smaller than the width B of the lower non-display area 6 as in the present embodiment.

  Note that the first transparent electrode 14 and the driver IC 13 are not electrically connected to the upper non-display area 5 and a dummy for the purpose of keeping the distance between the first and second light-transmitting substrates 11 and 12 constant. A wiring may be formed.

  As shown in FIGS. 1 and 2, the driver IC 13 is separated from the display region 4, that is, the region where the first transparent electrode 14 is formed in the first translucent substrate 11. The light-transmitting substrate 11 is disposed in the vicinity of the lower side 11b.

  The driver IC 13 controls the voltage between the first and second transparent electrodes 14 and 15. By controlling the voltage between the first and second transparent electrodes 14 and 15 by the driver IC 13, the liquid crystal material positioned at each intersection 16 is in a desired state. Thereby, for example, the desired video display light is emitted from the display region 4 by being transmitted and illuminated by the backlight.

  Since the liquid crystal display 1 having such a configuration is a negative type, the display area 4 and the non-display areas 5, 6, 7, and 8 on the outer periphery thereof are visually recognized in different colors, and thus the appearance is poor. Therefore, in the liquid crystal display device of this embodiment, the display area 4 of the liquid crystal display 1 is made slightly larger than the opening 3 of the dial 2 so that the display area 4 is exposed from the opening 3 of the dial 2. In the state where the peripheral portion of the display area 4, for example, the intersection 16 and the non-display areas 5, 6, 7, 8 located on the outermost periphery of the display area 4 are covered with a portion other than the opening 3 of the dial 2. Yes.

  Note that the liquid crystal display device of this embodiment is different from the conventional liquid crystal display device manufacturing method in the size of the first and second light-transmitting substrates 11 and 12 with respect to the display region 4, particularly the upper non-display region 5. It is possible to manufacture by changing the size of.

  For example, when the liquid crystal display 1 is manufactured, a glass substrate larger than one liquid crystal display 1 is used as the first and second translucent substrates 11 and 12, and a plurality of liquid crystal displays 1 are provided on these glass substrates. Are formed simultaneously, and then the glass substrate is cut to produce a plurality of liquid crystal displays 1.

  As described above, in the present embodiment, the first and second translucent substrates 11 and 12 of the liquid crystal display 1 are configured such that the width A of the upper non-display area 5 is larger than the width B of the lower non-display area 6. Since it has a narrow shape, it has the following effects.

  (1) In the conventional liquid crystal display for a vehicle-mounted meter, the width A of the upper non-display area 5 and the width B of the lower non-display area 6 of the first and second translucent substrates 11 and 12 are substantially the same. It was. Therefore, according to this embodiment, compared with such a conventional liquid crystal display, the upper non-display area 5 of the first and second translucent substrates 11 and 12 can be made smaller.

  Thereby, in the liquid crystal display device, for example, when the liquid crystal display 1 in FIGS. 1 and 2 is mounted on the lower side of other components, the distance between the other components and the display area 4 can be reduced. The case where the area interferes with other parts can be reduced. As a result, the mountability of the liquid crystal display 1 on the liquid crystal display device can be improved.

  (2) Further, in the liquid crystal display device of the present embodiment, the display area 4 of the liquid crystal display 1 is exposed from the opening 3 of the dial 2, and all the non-display areas 5, 6, 7, and 8 are The liquid crystal display 1 is used as a state covered with a portion other than the opening portion 3 of 2.

  Here, in addition to this method, the liquid crystal display can be used without covering all of the non-display areas 5, 6, 7, and 8 with the dial 2, so that the non-display areas 5, 6, 7, and 8 can be used. There is a method of exposing the vicinity of the display area 4 from the opening of the dial. Conventionally, for example, a liquid crystal display for a mobile phone has been used in this way.

  In this case, there is an advantage that the display area can be made wider than the actual display area, but for this advantage, it is necessary to actively provide a non-display area. In particular, the upper non-display area 8 cannot be reduced when the display area and the size of the opening are defined from the viewpoint of visibility and design.

  On the other hand, in the liquid crystal display device of the present embodiment, the liquid crystal display 1 is used in a state where the non-display areas 5, 6, 7 and 8 are all covered with the dial 2. Of the liquid crystal display 1, the portion covered with the dial 2 is not visually recognized by humans, so that the design is not affected. Therefore, the upper non-display area 5 of the first and second translucent substrates 11 and 12 can be reduced without hindering the use of the liquid crystal display.

  For this reason, the 1st, 2nd translucent board | substrates 11 and 12 can be made smaller than the conventional liquid crystal display device, ie, the material which comprises the 1st and 2nd translucent board | substrates 11 and 12 can be reduced. it can.

  In addition, according to the present embodiment, when the liquid crystal display 1 is manufactured, the plurality of liquid crystal displays 1 are simultaneously formed on the glass substrate, and then the glass substrate is cut to manufacture the plurality of liquid crystal displays 1. In this case, a plurality of liquid crystal displays 1 can be arranged on one glass substrate without any gap, and the number of liquid crystal displays formed from one glass substrate can be increased.

(First Embodiment)
FIG. 3 is a front transparent view of the liquid crystal display device according to the first embodiment of the present invention. 4A and 4B are enlarged views of regions E and F surrounded by a broken line in FIG.

  In the liquid crystal display 1 of the present embodiment, the width D of the right non-display area 8 in the first and second translucent substrates 11 and 12 is smaller than the width C of the left non-display area 7. 2 is different from the liquid crystal display panel 1 shown in FIG. Hereinafter, this point will be mainly described. Other components are the same as those in FIG.

  As shown in FIG. 3, the second wiring 18 formed in the left non-display region 7 specifies, for example, the fifth second transparent electrode 15 from the lower side in the drawing among the plurality of second transparent electrodes 15. As the second transparent electrode, a second wiring formed in the right non-display area 8 is connected to a plurality of second transparent electrodes 15 located on the side farther from the driver IC 13 than the specific second transparent electrode 15. Reference numeral 18 denotes a specific second transparent electrode 15 and a plurality of second transparent electrodes 15 located closer to the driver IC 13 than the specific second transparent electrode 15. The driver IC 13 is disposed in the vicinity of the center in the left-right direction of the first translucent substrate 11 (direction parallel to the upper side 11a and the lower side 11b).

For this reason, the second wiring 18 formed in the right non-display area 8 is shorter than the second wiring 18 formed in the left non-display area 7. Accordingly, when the wiring material and the wiring width are the same as in the reference embodiment, the second wiring 18 formed in the right non-display area 8 is the second wiring formed in the left non-display area 7. The wiring resistance value of the second wiring 18 formed in the left non-display area 7 and the right non-display area 8 is different.

  Therefore, in this embodiment, as shown in FIG. 4B, the right side non-display area 7 and the right side non-display area 8 have the same wiring resistance value as shown in FIG. The line width of the second wiring 18 formed in the display area 8 is made smaller than the line width of the second wiring 18 formed in the left non-display area 7 shown in FIG. The second wirings 18 are all made of the same material. For this reason, the width D of the right non-display area 8 in the first and second translucent substrates 11 and 12 can be made smaller than the width C of the left non-display area 7.

As described above, the non-display areas 7 and 8 on both the left and right sides of the display area 4 also need to secure a wiring space for electrically connecting the second transparent electrode 15 and the driver IC 13. In consideration, the size of the right non-display area 8 can be reduced, and the size of the first and second light-transmitting substrates 11 and 12 can be reduced. As a result, according to this embodiment, the effect of the embodiment serving as a reference example can be further enhanced.

In the present embodiment, the first and second translucent substrates 11 and 12 are formed such that the width A of the upper non-display area 5 is smaller than the width B of the lower non-display area 6 and the right non-display area 8. Although the case where the width D of the upper non-display area 5 is smaller than the width C of the left non-display area 7 has been described, the first and second translucent substrates 11 and 12 Even if the shape is equivalent to the width B of the display area 6 and the width D of the right non-display area 8 is narrower than the width C of the left non-display area 7, the same effect as that of the embodiment serving as the reference example is obtained .

  In the present embodiment, the second wiring 18 formed in the left non-display area 7 is connected to the second transparent electrode 15 located on the side away from the driver IC 13 and formed in the right non-display area 8. Although the case where the second wiring 18 is connected to the second transparent electrode 15 located on the side close to the driver IC 13 has been described, conversely, the second wiring 18 formed in the left non-display area 7 is connected to the driver When connecting to the second transparent electrode 15 located on the side close to the IC 13 and connecting the second wiring 18 formed in the right non-display area 8 to the second transparent electrode 15 located on the side away from the driver IC 13 Is also applicable.

(Other embodiments)
(1) In each of the above-described embodiments, the case where the liquid crystal display 1 is a negative type has been described as an example. However, the liquid crystal display 1 is not limited to a negative type, and may be a positive type. Also in this case, the display area 4 of the liquid crystal display 1 is exposed from the opening 3 of the dial 2, and all the non-display areas 5, 6, 7, 8 are other than the opening 3 of the dial 2. If the liquid crystal display 1 is used in the covered state, the same effects as those of the above-described embodiments are obtained.

  (2) In each of the above-described embodiments, the display area 4 of the liquid crystal display 1 is exposed from the opening 3 of the dial 2, and all the non-display areas 5, 6, 7, 8 are exposed to the opening of the dial 2. Although the case where the liquid crystal display 1 is used in a state covered with a portion other than 3 has been described as an example, the vicinity of the display area 4 in the non-display areas 5, 6, 7, 8 is exposed from the dial 2. In this case, the liquid crystal display 1 may be used.

  Even in the conventional liquid crystal display device used in this way, other portions of the non-display areas 5, 6, 7, 8 may be covered with the dial 2. By applying the present invention to such a liquid crystal display device, it is possible to reduce the size of the non-display area of the non-display areas 5, 6, 7, and 8 covered with the dial 2. The dimensions of the first and second translucent substrates 11 and 12 can be reduced.

  In addition, about the usage method of the liquid crystal display 1, the case where all the non-display area | regions 5, 6, 7, and 8 are covered with parts other than the opening part 3 of the dial 2 is preferable. When the size of the display area 4 is the same, the first and second translucency is greater than when the vicinity of the display area 4 of the non-display areas 5, 6, 7, 8 is exposed from the dial 2. This is because the dimensions of the substrates 11 and 12 can be reduced.

  (3) In each of the above-described embodiments, the case where the first and second transparent electrodes 14 and 15 are orthogonal to each other has been described as an example. However, the intersection angle is not limited as long as dot matrix display is possible. That is, the second transparent electrode only needs to extend in a direction intersecting with the first transparent electrode.

  (4) In each of the above-described embodiments, the case where the first and second light-transmitting substrates 11 and 12, the display area 4, and the opening 3 of the dial 2 are rectangular has been described as an example. The shape may be square as long as it is rectangular. Further, as long as adjacent sides are in a vertical positional relationship, the four corners may be rounded instead of being a right angle.

  Moreover, about the shape of the 1st, 2nd translucent board | substrates 11 and 12, it is good also as another shape in the range with which the effect of each above-mentioned embodiment is acquired. For example, a parallelogram, trapezoid, polygon, or the like having at least the upper sides 11a and 12a and the lower sides 11b and 12b that are parallel to each other may be used. In this case, the outer shape of the display area is parallel to the upper sides 11a, 12a and the lower sides 11b, 12b, the distance A between the upper side 11a of the first light transmissive substrate 11 and the display area 4, and the lower side of the second light transmissive substrate 12. The interval B between 12b and the display area 4 should be constant and the interval A should be narrower than the interval B.

  Note that, in a liquid crystal display mounted on a vehicle-mounted meter, the shape of the display area is usually defined as a square or the like from the viewpoint of design, but the shape of the display area can be arbitrarily changed. In addition, the shapes of the first and second light-transmitting substrates can be changed according to the shape of the display area. For example, it can be circular. In this case, the distance A between the side corresponding to the upper sides 11a and 12a of the first and second light transmitting substrates 11 and 12 in FIG. 1 and the display region 4 and the lower side 12b of the second light transmitting substrate 12 are equivalent. It is only necessary that the interval B between the side and the display area 4 is constant and the interval A is narrower than the interval B.

  In addition, it is preferable that the 1st, 2nd translucent board | substrates 11 and 12 are rectangular shapes. This is because in the manufacture of the liquid crystal display 1, it is easy to cut the substrate material to be the first and second light-transmitting substrates 11 and 12.

  (5) In each of the above-described embodiments, the case where the present invention is applied to a liquid crystal display for a vehicle-mounted meter and a liquid crystal display device has been described as an example. However, the liquid crystal display used in other fields such as for mobile phones and the like The present invention can also be applied to a liquid crystal display device.

It is a front view of the liquid crystal display device in an embodiment serving as a reference example of the present invention. It is a front permeation | transmission figure of the liquid crystal display 1 in FIG. It is a front permeation | transmission figure of the liquid crystal display 1 in 1st Embodiment of this invention. (A), (b) is an enlarged view of the area | regions E and F enclosed with the broken line in FIG. 3, respectively.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Liquid crystal display device, 2 ... Dial, 3 ... Opening part , 4 ... Display area,
5 ... upper non-display area, 6 ... lower non-display area,
7 ... Left non-display area, 8 ... Right non-display area,
DESCRIPTION OF SYMBOLS 11 ... 1st translucent board | substrate, 12 ... 2nd translucent board | substrate, 13 ... Driver IC,
14 ... 1st transparent electrode, 15 ... 2nd transparent electrode, 16 ... Crossing part,
17 ... 1st wiring, 18 ... 2nd wiring.

Claims (2)

A first translucent substrate (11) on which a plurality of first transparent electrodes (14) extending in one direction are formed;
A plurality of second transparent electrodes (a plurality of second transparent electrodes extending in a direction intersecting with the plurality of first transparent electrodes (14)) are arranged to face the first light transmitting substrate ( 11 ) through a liquid crystal material. 15) a second translucent substrate (12) on which is formed;
A controller (13) provided on the first translucent substrate (11), for controlling a voltage between the first and second transparent electrodes (14, 15);
A first wiring (17) for electrically connecting the first transparent electrode (14) and the control unit (13);
A second wiring (18) for electrically connecting the second transparent electrode (15) and the control unit (13);
The first translucent substrate (11) is perpendicular to the first side (11b) and the second side (11a) parallel to each other, and to the first side (11b) and the second side (11a). There are parallel third side (11c) and fourth side (11d), and there are a plurality of intersections (16) between the second side (11a) and the first and second transparent electrodes (14, 15). The first interval (A) with the display area (4) to be formed is a fixed shape,
The control unit (13) is disposed between the first side (11b) of the first translucent substrate (11) and the first transparent electrode (14),
The first wiring (17) includes a first region (6) between the plurality of first transparent electrodes (14) and the control unit (13) of the first translucent substrate (11), Of the second region (5) between the second side (11a) and the first transparent electrode (14), it is formed only in the first region (6),
The second translucent substrate (12) is perpendicular to the first side (12b) and the second side (12a) parallel to each other, and to the first side (12b) and the second side (12a) , The third side (12c) and the fourth side (12d) are parallel to each other, and the position of the second side (12a) of the second translucent substrate is the second side of the first translucent substrate ( 11a), the positions of the third side (12c) and the fourth side (12d) of the second translucent substrate are respectively the third side (11c) and the fourth side of the first translucent substrate. The first side (12b) of the second translucent substrate coincides with the side (11d) and the control unit (13) and the first transparent electrode (14) in the first translucent substrate (11) The second distance (B) between the first side (12b) of the second translucent substrate and the display region (4) is a fixed shape,
In the first and second light transmitting substrates (11, 12), the first interval (A) in the second region (5) is greater than the second interval (B) in the first region (6). also Ri short shape der,
The first transparent electrode (14) extends in a direction perpendicular to the first sides (11b, 12b) of the first and second translucent substrates, and the second transparent electrode (15) Extending in a direction parallel to the first sides (11b, 12b) of the first and second translucent substrates,
Of the second translucent substrate (12), the region (7) between the third side (12c) and the display region (4) is more than the specific second transparent electrode (15). The second wiring (18) connected to the second transparent electrode (15) located on the side away from the control unit (13) is disposed, and the fourth side (12d) and the display area (4) are arranged. ) Between the specific second transparent electrode (15) and the second transparent electrode positioned closer to the control unit (13) than the specific second transparent electrode (15) The second wiring (18) connected to (15) is disposed;
The width of the second wiring (18) formed in the region (8) between the fourth side (12d) and the display region (4) is the same as the width of the third side (12c) and the display region (4). ) Is smaller than the width of the second wiring (18) formed in the region (7) between
The first and second translucent substrates (11, 12) have a distance (D) between the fourth side (11d, 12d) and the display area (4), and the third side (12c). ) and a liquid crystal display device, wherein a short shape der Rukoto than the distance (C) of the display area (4). A liquid crystal display (1) according to claim 1 ,
A cover member (2) disposed on the front side of the liquid crystal display (1) and having an opening (3);
The covering member (2) covers the non-display areas (5, 6, 7, 8) which are located around the display area (4) and do not have the intersection (16), and The liquid crystal display device, wherein the display region (4) is exposed from the opening (3).

Images