CN103487974A - Visual interface device - Google Patents

Abstract

A visual interface device has a display surface and includes a matrix substrate. The display surface is located on one side of the matrix substrate. The matrix substrate has a transparent substrate, a plurality of first electrodes, a plurality of second electrodes, and a nanostructure layer. The first electrodes and the second electrodes are interlaced with each other, and the nanostructure layer is at least partially disposed between the transparent substrate and the first electrode or the second electrode. In this way, when the matrix substrate faces the user, the reflection caused by ambient light irradiating the first electrode or the second electrode made of metal can be reduced, thereby increasing the picture clarity of the visual interface device, improving the reading comfort, and reducing the eye pressure and fatigue caused by long-term use of the user.

Description

visual interface device

technical field

The invention relates to a visual interface device.

Background technique

The display device has developed from the original cathode ray tube (Cathode Ray Tube, CRT) display to the current thin and light liquid crystal display (Liquid Crystal Display Apparatus, LCD Apparatus), in which the liquid crystal display has small size, light weight, thin thickness, and low power consumption. , no flicker, no radiation and many other advantages, it is widely used in communications, information and consumer electronics and other products.

Please refer to FIG. 1 , which is a cross-sectional view of a known liquid crystal display panel. The liquid crystal display panel 1 includes a color filter substrate 11 , a liquid crystal layer 12 and a driving substrate 13 . Wherein, the driving substrate 13 is disposed opposite to the color filter substrate 11 , and the liquid crystal layer 12 is disposed between the color filter substrate 11 and the driving substrate 13 .

The color filter substrate 11 has a glass substrate 111 , a black matrix layer 112 , a plurality of color photoresists 113 and a common electrode layer 114 . The driving substrate 13 has a transparent substrate 131 , a plurality of thin film transistors 132 and a pixel electrode layer 133 , and the pixel electrode layer 133 is electrically connected with the thin film transistors 132 . When the thin film transistor 132 is turned on, a voltage difference will be generated between the pixel electrode layer 133 and the common electrode layer 114 on the color filter substrate 11, causing the liquid crystal molecules in the liquid crystal layer 12 to deflect, and the different polarization angles cause the light to pass through the liquid crystal layer 12 The intensity of the light is different, and after passing through the liquid crystal layer 12, the light respectively passes through the color photoresist 113 to generate images with different brightness and different colors on the display surface.

The black matrix layer 112 is not only used to shield areas other than the pixel electrode layer 133 to avoid light leakage from the backlight, but also to reduce reflection caused by ambient light, thereby improving the contrast of the display screen.

With the continuous development of touch technology, it can provide a set of humanized interface between products and users, and has the characteristics of direct and simple operation, so its application range is becoming wider and wider. Currently, a common touch display device is to add an electromagnetic board directly behind the display panel, or add a resistive or capacitive touch panel in front of the display panel.

Contents of the invention

The object of the present invention is to provide an innovatively designed visual interface device.

The present invention can be realized by adopting the following technical solutions.

A visual interface device of the present invention has a display surface and includes a matrix substrate. The display surface is located on one side of the matrix substrate, the matrix substrate has a transparent substrate, a plurality of first electrodes, a plurality of second electrodes and a nanometer microstructure layer, the first electrodes and the second electrodes are interlaced, and the nano The microstructure layer is at least partially disposed between the transparent substrate and the first electrode or the second electrode.

In one embodiment, the visual interface device further includes another nano-microstructure layer located on the side of the matrix substrate facing the display surface.

In one embodiment, the nano-microstructure layer is a non-patterned layer or a patterned layer.

In one embodiment, the material of the nano-microstructure layer includes silicon, silicon oxide, glass, ceramics, metal, alloy, or resin.

In one embodiment, the matrix substrate further includes a plurality of thin film transistors and a pixel electrode layer, and the first electrode and the second electrode are electrically connected to the pixel electrode layer through the thin film transistors.

In one embodiment, the nano-microstructure layer is located around the pixel electrode layer. For example, the pixel electrode layer has a plurality of pixel electrodes, and the nanometer microstructure layer is located in a region other than the pixel electrodes.

In one embodiment, the visual interface device further includes a pair of facing substrates, disposed opposite to the matrix substrate, and located on opposite sides of the matrix substrate to the display surface.

In one embodiment, the opposite substrate is a color filter substrate.

In one embodiment, the visual interface device further includes a backlight module adjacent to the opposite substrate.

In an embodiment, the reflectivity of the nano-microstructure layer is smaller than the reflectivity of the first electrode or the second electrode.

As mentioned above, the visual interface device of the present invention has a nano-microstructure layer, which is at least partially disposed between the transparent substrate and the first electrode (such as a data line) or the second electrode (such as a scanning line). In this way, When the matrix substrate is facing the user, it can reduce the reflection caused by the ambient light irradiating the first electrode or the second electrode made of metal, thereby increasing the picture clarity of the visual interface device, improving the comfort of reading, and reducing the long-term use of the user. eye pressure and fatigue.

Description of drawings

Fig. 1 is a sectional view of a known liquid crystal display panel;

Fig. 2 is a bottom view of a matrix substrate of a visual interface device according to a preferred embodiment of the present invention;

Fig. 3 is a schematic cross-sectional view of the visual interface device along the A-A' tangent direction in Fig. 2;

Fig. 4 is a schematic cross-sectional view of another visual interface device along the A-A' tangent direction in Fig. 2 with another nano-microstructure layer; and

5 is a bottom view of a matrix substrate of a visual interface device and a black matrix of an opposite substrate according to a preferred embodiment of the present invention.

Description of main component symbols:

1: LCD display panel

11: Color filter substrate

111: glass substrate

112: black matrix

113: Color photoresist

114: common electrode layer

12: Liquid crystal layer

13: Drive substrate

131: Transparent substrate

132: thin film transistor

133: pixel electrode layer

21: Matrix substrate

211: transparent substrate

212: first electrode

213: second electrode

214, 214a: nano-microstructure layer

215: thin film transistor

216: pixel electrode layer

217: storage electrode layer

22: Liquid crystal layer

23: opposite substrate

231: Transparent substrate

232: black matrix layer

233: Color photoresist

234: common electrode layer

3, 3a: Visual interface device

A-A': tangent

DS: display surface

L backlight module

O: user

Detailed ways

A visual interface device according to a preferred embodiment of the present invention will be described below with reference to related drawings, wherein the same elements will be described with the same reference numerals.

Please refer to Figure 2 and Figure 3 at the same time, Figure 2 is a bottom view of the matrix substrate of a visual interface device in a preferred embodiment of the present invention, and Figure 3 is a view of the visual interface device along the tangent direction AA' in Figure 2 Sectional schematic.

The visual interface device 3 of this embodiment has a display surface DS and includes a matrix substrate 21 . The display surface DS is located on one side of the matrix substrate 21 , and the matrix substrate 21 has a transparent substrate 211 , a plurality of first electrodes 212 , a plurality of second electrodes 213 and a nanostructure layer 214 .

The material of the transparent substrate 211 can be, for example, glass, plastic, resin, or quartz. The first electrodes 212 and the second electrodes 213 intersect each other. Here, the first electrodes 212 are taken as data lines, and the second electrodes 213 are taken as scan lines. The nano-microstructure layer 214 is at least partially disposed between the transparent substrate 211 and the first electrode 212 or the second electrode 213; here, the nano-microstructure layer 214 is at least partially disposed between the transparent substrate 211 and the Between the first electrodes 212 and between the transparent substrate 211 and the second electrodes 213 are examples. The nano-microstructure layer 214 can be formed of, for example, a single material or a plurality of materials. The thickness of the nano-microstructure layer 214 may range from several nanometers to hundreds of nanometers, for example.

In addition, as shown in FIG. 4 , another aspect of the visual interface device 3 a of this embodiment may further include another nanostructure layer 214 a located on the side of the matrix substrate 21 facing the display surface DS. The nano-microstructure layer 214, 214a can be a monolithic non-patterned layer covering the entire surface, or a patterned layer. Here, the nano-microstructure layer 214 is an example of a patterned layer, and the nano-microstructure layer 214a is an example of a monolithic non-patterned layer, which has no pattern and covers the visible area. The material of the nanostructure layer 214, 214a may include, for example, silicon, silicon oxide, glass, ceramic, metal, alloy, or resin. Silicon oxides, such as silicon oxide or silicon dioxide, have temperature resistance to facilitate subsequent thin film manufacturing processes. The reflectance of the nanostructure layer 214 is lower than that of the first electrode 212 or the second electrode 213 as an example. The nano-microstructure layer 214, 214a can be formed by embossing after coating a layer of material.

The matrix substrate 21 takes an active type as an example. Therefore, the matrix substrate 21 also includes a plurality of thin film transistors 215 and a pixel electrode layer 216. The first electrode 212 and the second electrode 213 are connected to the pixel through the thin film transistor 215. The electrode layer 216 is electrically connected to drive the pixel electrode layer 216 . The nano-microstructure layer 214 is located in a region other than the pixel electrode layer 216 . For example, the pixel electrode layer 216 has a plurality of pixel electrodes, and the nano-microstructure layer 214 is located in a region other than the pixel electrodes. In addition, the matrix substrate 21 may further include a storage electrode layer 217 (as shown in FIG. 2 ), which and the pixel electrode layer 216 may form a storage capacitor for use.

In this embodiment, the display surface DS is a surface of the matrix substrate 21 and can be touched by the user; while in other embodiments, the display surface DS can be on the matrix substrate 21 . The matrix substrate 21 can be used as a thin film transistor driving substrate of a known liquid crystal display device, but the pixel electrode layer 216 is a transparent electrode, and its material can be, for example, indium tin oxide, aluminum zinc oxide, indium zinc oxide or cadmium tin oxide. things. Of course, other metal electrodes on the matrix substrate 21 can also be made of transparent electrodes.

The visual interface device 3 can be, for example, a self-luminous display device, such as an organic light-emitting diode display device (OLED Display), or a non-self-luminous display device, such as a liquid crystal display device (LCD). Here, the visual interface device 3 takes a liquid crystal display device as an example, so the visual interface device 3 further includes a liquid crystal layer 22 and a pair of opposite substrates 23 , and the liquid crystal layer is disposed between the matrix substrate 21 and the opposite substrate 23 . The opposite substrate 23 is disposed opposite to the matrix substrate 21 and is a color filter substrate. The opposite substrate 23 has a transparent substrate 231 , a plurality of color photoresists 233 and a common electrode layer 234 . The color photoresist 233 is disposed on the transparent substrate 231 , and the common electrode layer 234 is disposed between the liquid crystal layer 22 and the color photoresist 233 . Wherein, the material of the transparent substrate 231 is glass, plastic, resin, or quartz, and the common electrode layer 234 is usually a transparent electrode layer, and its material can be, for example, indium tin oxide, aluminum zinc oxide, indium zinc oxide, or cadmium tin oxide. . In addition, if the visual interface device 3 uses the In-Plane Switching (IPS) display technology, the common electrode layer 234 is located on the matrix substrate 21 and on the same side as the pixel electrode layer 216 .

In addition, the opposite substrate 23 may further include a black matrix layer 232 which is overlapped with the first electrode 212 and the second electrode 213 in the projection direction to avoid light leakage. It should be noted that the black matrix layer 232 and the nano-microstructure layer 214 can have various configurations. In one of the aspects, only the nano-microstructure layer 214 is provided, that is, the setting of the black matrix layer 232 can be omitted, as shown in FIG. see through) effect; in another aspect, the position of the nano-microstructure layer 214 and the position of the black matrix layer 232 may not overlap or partially overlap in the vertical projection direction, but the nano-microstructure layer 214 Cooperating with the black matrix layer 232 can achieve the desired light-shielding effect, for example, both are disposed around each pixel electrode in the pixel electrode layer 216 , as shown in FIG. 5 .

In addition, the visual interface device 3 further includes a backlight module L, which is adjacent to the opposite substrate 23 and provides a surface light source.

In this embodiment, since the display surface DS is closer to the matrix substrate 21, the visual interface device 3 is an inverted structure, so this embodiment does not need to add a touch screen panel, but the matrix substrate can be designed as an input function substrate, so that the visual interface device of this embodiment has the functions of visual output and user input.

As mentioned above, the visual interface device of the present invention has a nano-microstructure layer, which is at least partially disposed between the transparent substrate and the first electrode (such as a data line) or the second electrode (such as a scanning line), so that , when the matrix substrate is facing the user, it can reduce the reflection caused by the ambient light irradiating the first electrode or the second electrode made of metal, thereby increasing the picture clarity of the visual interface device, improving the comfort of reading, and reducing the long-term use of the user. eye pressure and fatigue.

The above description is only illustrative, not restrictive. Any equivalent modification or change made without departing from the spirit and scope of the present invention shall be included within the scope defined in the claims.

Claims (10)

1. A visual interface device having a display surface, characterized in that the visual interface device comprises: A matrix substrate, the display surface is located on one side of the matrix substrate, the matrix substrate has a transparent substrate, a plurality of first electrodes, a plurality of second electrodes and a nano-microstructure layer, the first electrode Interlaced with the second electrode, the nano-microstructure layer is at least partially disposed between the transparent substrate and the first electrode or the second electrode. 2. The visual interface device according to claim 1, further comprising: Another nano-microstructure layer is located on the side of the matrix substrate facing the display surface. 3. The visual interface device according to claim 1, wherein the nano-microstructure layer is a monolithic non-patterned layer or a patterned layer. 4. The visual interface device according to claim 1, wherein the material of the nano-microstructure layer comprises silicon, silicon oxide, glass, ceramics, metal, alloy, or resin. 5. The visual interface device according to claim 1, wherein the matrix substrate further comprises a plurality of thin film transistors and a pixel electrode layer, and the first electrode and the second electrode are connected through the thin film transistors. It is electrically connected with the pixel electrode layer. 6. The visual interface device according to claim 5, wherein the pixel electrode layer has a plurality of pixel electrodes, and the nano-microstructure layer is located in a region other than the pixel electrodes. 7. The visual interface device according to claim 1, further comprising: A pair of opposite substrates is arranged opposite to the matrix substrate, and the display surface and the opposite substrate are located on opposite sides of the matrix substrate. 8. The visual interface device according to claim 7, wherein the opposite substrate is a color filter substrate. 9. The visual interface device according to claim 7, further comprising: A backlight module is adjacent to the opposite substrate. 10 . The visual interface device according to claim 1 , wherein the reflectivity of the nano-microstructure layer is smaller than the reflectivity of the first electrode or the second electrode. 11 .

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