JP5925489B2 - Graphic system that improves the three-dimensional appearance of the liquid crystal display - Google Patents

Description

  The present invention is a graphic system that produces a three-dimensional visual effect using a full-color liquid crystal display panel, for example, a liquid crystal display that can be applied to simulate an existing analog display type vehicle meter. The present invention relates to a graphic system that improves the three-dimensional effect of the part.

With recent improvements in liquid crystal display performance, for example, a new display system has been developed that uses a liquid crystal display to reproduce a tropical fish tank. Of course, in addition to such a novel display system, for example, a device in which such an idea is integrated with instruments such as a vehicle meter has been proposed.
Conventional analog display type vehicle meters cannot change the display layout due to structural limitations, and therefore cannot always display optimally in accordance with changes in the driving state.
For this reason, in order to change the meter display more optimally and to display various information together, a vehicle meter using a liquid crystal display panel has been proposed and provided to the market.
However, the meter display drawn on the liquid crystal display panel is basically a flat drawing like a computer display, and even if a conventional analog display type vehicle meter is drawn, the conventional three-dimensional effect , There was a tendency to get a sense of depth.
Such three-dimensional analog display meter was found preparative feeling display, to reproduce drawn in plan the liquid crystal display panel, feel puzzled those feel uncomfortable to the driver, there is a slight There was a problem that let me.

Of course, various methods have been proposed for enabling the instruments to be viewed more three-dimensionally using a so-called transmissive liquid crystal display unit that simply displays numbers or a predetermined pattern (prior art documents 1 and 2). .
Since these technologies use a transmissive liquid crystal display unit as a premise, they have a structure in which a light emitting member (backlight) is provided at the back of a transmissive liquid crystal unit (such as a digital wristwatch). . However, in the liquid crystal display panel that enables full-color display adopted in recent years, it is applied to a vehicle meter device in which a light emitting member (backlight) and a display layer (liquid crystal display surface) are integrated as much as possible. Even if it does, it is difficult to acquire the effect which can be visually recognized in three dimensions.

JP 2005-258208 A JP-A-10-340060

The present invention has been made in view of these various backgrounds, and is a graphic system for producing a three-dimensional visual effect using a full-color liquid crystal display panel, for example, an analog display type vehicle meter. This is an attempt to develop a graphic system that improves the stereoscopic effect of a novel liquid crystal display unit that does not cause the driver to feel uncomfortable even when the image is reproduced.

A graphic system that improves the stereoscopic effect of the liquid crystal display unit according to claim 1, wherein the graphic system includes a liquid crystal display panel and draws a plurality of measurement displays.
On the display surface side of the liquid crystal display panel, transparent sheet panels having a permeability arranged to overlap so that the close contact, The rewritable protecting a liquid crystal display panel, wherein the transparent sheet panel, a liquid crystal display panel a shall stereoscopic display elements to supplement the rendered screen is disposed, the three-dimensional display element is formed by concave opposing surface that faces the liquid crystal display panel display surface in the transparent sheet panel It is characterized by being.

  In addition to the requirements of the first aspect, the graphic system that improves the three-dimensional appearance of the liquid crystal display unit according to claim 2 is characterized in that the three-dimensional display element provided on the facing surface of the transmissive sheet panel follows the viewing direction. The cross-sectional shape is a shape recessed in a rectangular shape.

According to a third aspect of the present invention, in addition to the requirement of the first aspect, the three-dimensional display element provided on the opposing surface of the transmissive sheet panel follows the line-of-sight direction. The cross-sectional shape is a shape recessed in a triangle.

In addition to the requirements described in claim 1, 2 or 3 , the 3D display element provided on the opposite surface of the transmissive sheet panel is a graphic system that improves the stereoscopic effect of the liquid crystal display unit according to claim 4. It is characterized by a satin treatment with minimal irregularities on the surface.

The graphic system according to claim 5, wherein the three-dimensional effect of the liquid crystal display unit is improved, wherein any one of the graphic systems according to claims 1 to 4 is applied to a vehicle meter. It consists of

First, according to the first aspect of the present invention, since the transmissive sheet panel is installed on the display surface side of the liquid crystal display panel, the diffused reflection of light is prevented while protecting the display surface which is easily damaged by an impact or the like. This makes it easier for the driver, the observer, etc. to visually recognize without feeling uncomfortable.
Further, by providing the stereoscopic display element on the liquid crystal display panel display surface side of the transmissive panel, since the stereoscopic display element does not exist on the surface of the graphic system, it is possible to prevent such contamination.
In addition, since the 3D display element is engraved on the transmissive sheet panel, the display screen of the liquid crystal display panel (for example, the image of the pointer) and the position of the 3D display element can be set to different positions in the depth direction. A sense of depth can be obtained.

According to the second aspect of the present invention, since the cross section of the stereoscopic display element is rectangular when viewed in the line-of-sight direction, the stereoscopic display element with a clear outline can be expressed.

According to the invention described in claim 3 , since the cross section of the stereoscopic display element is triangular when viewed in the line of sight, the line at the top of the head is clarified, and the boundary portion from the presence of both hypotenuses By using the gradation, it is possible to obtain an expression with enhanced affinity between the stereoscopic display element and the display screen of the liquid crystal display panel.

According to the invention described in claim 4 , the presence of the three-dimensional display element and the part of the other transmissive sheet panel can be made to stand out relatively differently.

Further, according to the invention described in claim 5 , since the stereoscopic depth can be improved by applying the stereoscopic display element of the present invention, for example, a pointer type instrument generally used as a vehicle meter is flat. Even when the drawing is reproduced on the display, the driver can visually recognize the vehicle meter without feeling uncomfortable.

It is the disassembled perspective view of the meter for vehicles which is an example of the graphic system which improved the stereoscopic effect of the display part of this invention, and a partial expanded sectional view. It is a disassembled perspective view of the meter for vehicles to which this invention is applied. It is explanatory drawing which showed meter display. It is explanatory drawing which shows the various three-dimensional display elements provided in the permeable sheet panel. It is explanatory drawing which showed the other reference form . It is explanatory drawing which showed the other Example.

  The mode for carrying out the present invention includes an embodiment described below, and includes various improved embodiments based on this technical idea.

Hereinafter, the present invention will be specifically described based on illustrated embodiments. Reference numeral G is a graphic system that improves the stereoscopic effect of the display unit of the present invention. In describing this, a vehicle meter 1 applied to a vehicle V such as an automobile as shown in FIGS. 1, 2, and 3 will be described as an example.
As shown in FIG. 2, the vehicle meter 1 includes a liquid crystal display panel 2 and a transmission sheet panel 3 provided on the display surface side. In addition, the liquid crystal display panel 2 is graphically displayed. The meter display 40 which is the displayed video display 4 and the three-dimensional display element 5 provided on the transmission sheet panel 3 exhibit a display function of a meter or the like.
In the present specification, as shown in FIG. 1, the driver side is described as “front” and the graphic system side is described as “back” when viewed in the direction of the line of sight of the driver D. Further, the front side surface is referred to as “front surface”, and the back side surface is referred to as “back surface”.

Introduction To explain the connection between the vehicle V that is attached as a meter 1 for this vehicle easily, the vehicle meter 1 according to the present invention, the vehicle V of the prime mover, obtained from various sensors provided like Den motivation For example, it receives information such as vehicle speed, engine speed, remaining battery capacity, etc., displays it graphically by combining numbers and symbols by the arithmetic drawing unit, and transmits it to the driver D in real time.

Hereafter, the member which comprises this vehicle meter 1 is demonstrated.
First, the liquid crystal display panel 2 will be described.
About this liquid crystal display panel 2 and the calculation drawing unit, since the existing vehicle products and well-known techniques are used, description of the detailed structure and features is omitted.

Next, the transmissive sheet panel 3 will be described.
As an example, the transmissive sheet panel 3 includes a protective sheet 30 for preventing the display surface of the liquid crystal display panel 2 from being stained or damaged.
The protective sheet 30 is a flat member to which a transparent material is applied as an example, and the thickness thereof is about 1 to 15 mm depending on the specifications of the liquid crystal display panel 2. In the present invention , the protective sheet 30 is provided so as to be in close contact with the display surface of the liquid crystal display panel 2. If necessary, the transmission sheet panel 3 may be subjected to an appropriate optical coating treatment depending on the use environment.

Next, a drawing form of the meter displayed by the above-described constituent members will be described.
First, the meter information is displayed by a meter display 40 which is a video display 4 displayed on the liquid crystal display panel 2 as shown in FIG.
As an example, the meter display 40 has a configuration in which a plurality of layouts, designs, and colors can be selected depending on the driving situation and the driver's preference.
In this embodiment, as shown in FIG. 1, a main instrument display 41 reproducing a concentric elliptical analog display type instrument is arranged at the center, and an auxiliary instrument display showing the automatic manual shift state at the center. 42 is arranged.
In the main instrument display 41, the pointer 41a and the background 41b are redrawn in real time according to the measured numerical values (vehicle speed, engine speed, etc.) as appropriate. In addition, the auxiliary instrument display 42 is redrawn as appropriate in accordance with the change in display information as in the case of the main instrument display 41.
In the present embodiment, the mark indicating the scale in the analog display type meter is not provided in the meter display 40 which is the video display 4 displayed on the liquid crystal display panel 2, and will be described later. The three-dimensional display element 5 provided on the seat panel 3 is reproduced.

Next, the three-dimensional display element 5 that functions as a scale when the analog display type is reproduced will be described. As an example, this is provided on the surface of the transmissive sheet panel 3 as shown in FIGS. In the present embodiment, as shown in FIG. 2, on the back surface on the side in contact with the liquid crystal display panel 2 which is the back of the transmissive sheet panel 3, the pointers 41a and 42a are appropriately arranged within a range in which the pointers 41a and 42a move by laser engraving. As shown in FIGS. 3 and 4A, the stereoscopic display element 5 has a rectangular cross section when viewed in the driver's line of sight, as well as FIGS. 3 and 4B. ) to what has become a triangular shape as shown, further, those taking 3 lower, semicircular cross-sectional shape as shown in FIG. 4 (c).
Specifically, when the thickness of the transmissive sheet panel 3 is 5 mm, the dimensions of the rectangular groove 51 having a rectangular cross section shown in FIG. 3A are 2 mm in the width direction and the depth (back) direction. The dimension of the triangular groove 52 having a triangular cross section shown in FIG. 3B is 1.5 mm, and the width direction is 1 mm and the depth (back) direction is 0.5 mm. The dimensions of the semicircular groove 53, which is a semicircular cross section, are 7 mm in the height (vertical) direction, 50 mm in the width (lateral) direction, and 3 mm in the depth (back) direction. Needless to say, an appropriate design change is made according to the thickness dimension of the transmissive sheet panel 3, and the present invention is not limited to the above dimensions.
When this 3D display element 5 is subjected to laser engraving, the surface becomes a satin finish due to fine irregularities, but it is also possible to actively polish this surface to make it a smooth surface like other parts. Absent.
What has been described above is the basic configuration, and the display form of the meter will be described below.

First, as shown in FIG. 1, a meter display 40 as a video display 4 as shown in FIG. In the drawing, a state in which the vehicle V is traveling is shown as an example, and a main instrument display 41 showing a vehicle speed is arranged in a concentric ellipse shape arranged at the center, and the pointer 41a is 94 km / h. Pointing.
In the present embodiment, the pointer 41a is designed to be able to express a measurement value by moving a range of about 240 degrees, and the stereoscopic display element 5 is arranged every about 13 degrees.
Then, when the vehicle V starts traveling, its speed changes, and the redrawing display is made in real time so that the position of the pointer 41a is also an appropriate position according to the three-dimensional display element 5 shown at a predetermined interval. It is possible to reproduce the analog display meter display.
At this time, the position of the image display surface which is the front surface of the liquid crystal display panel 2 and the three-dimensional display element 5 engraved on the back surface side of the transmissive sheet panel 3 are different from each other in the line-of-sight direction. A sense of depth can be felt visually.
In addition, the three-dimensional display element 5 is physically disposed in the same manner as a scale that is fixedly visible in an analog display meter display. For this reason, even if a slight change in the luminance and illuminance of the liquid crystal display panel 2 occurs for some reason, the scale display carried by the stereoscopic display element 5 is visually stable because it is visually stable. Difficult to occur.

[Other Embodiments]
The present invention has the above-described embodiment as one basic technical idea, but the following modifications can be considered as reference modes .
In the above-described embodiment, the liquid crystal display panel 2 and the transmissive sheet panel 3 are provided in a close contact state, but a reference form in which a gap S is provided therebetween can be considered.
Specifically, as shown in FIG. 5, the liquid crystal display panel 2 and the transmissive sheet panel 3 are assembled so as to provide a gap of about 1 to 5 mm. At this time, it is preferable to use a printing method for the three-dimensional display element 5 provided in the transmissive sheet panel 3. The thickness of the printed three-dimensional display element 5 is about 100-500 micrometers as an example. Then, an auxiliary light lamp 6 is provided at the end of the transmissive sheet panel 3 attached with the gap S, as shown in FIG. 5, so that auxiliary light can be incident from the peripheral end face.
With such a configuration, the relative position in the line-of-sight direction between the meter display 40 displayed on the liquid crystal display panel 2 and the three-dimensional display element 5 provided on the back surface of the transmissive sheet panel 3 is more compatible. It will be different, and a further three-dimensional effect will be emphasized. In addition, since the transmissive sheet panel 3 emits light by the auxiliary light lamp 6, it is possible to prevent a shadow generated on the liquid crystal display panel 2 of the stereoscopic display element 5.

Moreover, in the vehicle meter 1 using the graphic system G of the present embodiment, the pointer 41a corresponding to the pointer of the analog meter as viewed from the driver D is present behind the scale by the three-dimensional display element 5, The positional relationship between the scale and pointer in a typical analog meter is different.
In order to make this visible in the same manner as an analog meter, it is possible to adjust the display form of the pointer 41a as appropriate so that the pointer 41a is positioned on the scale.
Specifically, as shown in FIG. 6, the optical characteristics (refraction and illuminance) of the stereoscopic display element 5 with respect to the display pattern (stereoscopic display element decoration display 45) of the pointer 41a in the range where the pointer 41a and the stereoscopic display element 5 overlap. It is also possible to adjust so that the display is similar to the image of the pointer in the non-overlapping range. That is, the visual effect due to the presence of the stereoscopic display element 5 can be weakened as necessary.
Furthermore, as for the display pattern of the video display 4 immediately below the stereoscopic display element 5, it is possible to arbitrarily add a stereoscopic visual effect by positively changing the color and luminance within the range. Specifically, the color of each scale of the vehicle meter 1 can be arbitrarily changed.

  Further, in the present specification, the case where the graphic system of the present invention is applied to the vehicle meter 1 has been described, but the present invention can also be applied to instruments provided in a control room such as a plant. Of course, it is needless to say that the present invention can be applied to a generally used table clock or wall clock. Furthermore, by combining the transparent sheet panel 3 with the protective sheet 30 and the touch panel sheet, the three-dimensional display of the present invention can be applied to a ticket sales device using a touch panel in public transportation, an amusement game machine for business use, and the like. It is also possible to apply element 5.

  In this specification, the three-dimensional display element 5 provided on the surface of the transmissive sheet panel 3 is described. Although not shown, for example, 3D laser crystal processing using a laser beam technique is used, and the transmissive sheet panel is used. It is also possible to apply the three-dimensional display element 5 provided by engraving a three-dimensional modeled object inside the three plates.

V Vehicle D Driver G Graphic system S Gap 1 Vehicle meter 2 Liquid crystal display panel 3 Transmission sheet panel 30 Protective sheet 4 Video display 40 Meter display 41 Main instrument display 41a Pointer 41b Background 42 Auxiliary instrument display 45 3D display element decoration display 5 3D display element 51 Square groove 52 Triangular groove 53 Semicircular groove 6 Auxiliary light lamp

Claims (5)

In a display device having a liquid crystal display panel and drawing a plurality of measurement displays,
On the display surface side of the liquid crystal display panel, transparent sheet panels having a permeability arranged to overlap so that the close contact, The rewritable protecting a liquid crystal display panel, wherein the transparent sheet panel, a liquid crystal display panel a shall stereoscopic display elements to supplement the rendered screen is disposed, the three-dimensional display element is formed by concave opposing surface that faces the liquid crystal display panel display surface in the transparent sheet panel A graphic system that improves the stereoscopic effect of the liquid crystal display.
The stereoscopic display elements provided on the opposite surface of the transparent sheet panel, the stereoscopic effect of the liquid crystal display unit of claim 1, wherein the cross-sectional shape along the line-of-sight direction has a shape that is recessed in a rectangular shape Improved graphics system.
Stereoscopic display elements provided on the opposite surface of the transparent sheet panels, improving the stereoscopic effect of the liquid crystal display unit of claim 1, wherein the cross-sectional shape along the line-of-sight direction has a shape that is recessed in a triangular Graphic system.
The stereoscopic display elements provided on the opposite surface of the transparent sheet panel, the liquid crystal display unit of claim 1, 2 or 3, wherein the satin finish provided with minimum asperities on the surface have been made A graphics system with improved three-dimensional effect.
The graphic system according to any one of claims 1 to 4 , wherein the graphic system is applied to a vehicle meter, and the three-dimensional effect of the liquid crystal display unit is improved.