TWI264389B - Display mirror - Google Patents

Abstract

A display mirror comprises a substrate and a display device. In this case, the substrate has at least one semi-reflecting layer. The display device comprises a first electrode, a light-emitting zone, and a second electrode. The first electrode is set above the substrate. The second electrode is set above the first electrode. The light-emitting zone is located between the first electrode and the second electrode.

Description

1264389 V. INSTRUCTION DESCRIPTION OF THE INVENTION (1) (Technical Field of the Invention) The present invention relates to a display mirror, and more particularly to a display mirror having a function of generating information and images. (2) [Prior Art] Mirror has The function of reflecting images is widely used in daily life. For example, it can be used in cars or locomotives, as rear mirrors and side mirrors; or it can be used in parking lots or curved mountain roads where there are blind spots of sight, as turning mirrors. Use and so on.

In recent years, in order to cope with the development of electronic systems and to expand the use of mirrors, the industry has attempted to combine mirrors with display devices so that the mirrors have the dual functions of displaying images and reflecting images. Taking the rear mirror as an example, a manufacturer directly attaches a display device to the back of the lens, and the method is to cut a range in the center of the lens and set the display device therein. However, in this technique, the area in which the display device is disposed does not have the function of reflecting an image, and the area that can be truly reflected is thus reduced, so that the reflection angle of the entire rear view mirror cannot be kept intact, resulting in safety concerns on the road.

In addition, some companies have added a Light Emitting Diode (LED) behind the lens of the rear mirror. However, due to the poor resolution of the overall image, it cannot be applied to image display with high information density; and since the illuminating crystal of the LED is modularized, the size becomes larger, and the display mirror loses its original plane thinness. Layered features. In addition, some operators also add a liquid crystal display behind the lens of the rear mirror.

Page 6 1264389 Five 'Inventors' description (L 1 q u 1 d C r y s t a 1 D 1 s p 1 a y, L C D ). Although the liquid crystal display can have better image quality, since the liquid crystal molecules perfused by the liquid crystal display itself do not emit light, it is necessary to add a backlight to the back side to illuminate the image, so the luminous efficiency, contrast, and viewing angle are not ideal. At the same time, due to the complex structure of the liquid crystal display, and the need to match the backlight, color filter and polarizing plate and other materials, the cost is relatively high, which is not conducive to the market. Due to the expansion of the application field and the increase in the transmission of information content,

Mirrors with display functions that are currently in use are no longer compatible with image resolution and information content. In view of this, there is a need for a new display mirror to solve the shortcomings of the above conventional techniques. Because of this, the inventor, in the spirit of active invention, thought of a "display mirror" that could solve this problem, and after several research experiments, he completed the invention of this Jiahui world. (3) [Draft of the Invention] In view of the above problems, it is an object of the present invention to provide a display mirror having a display function.

For the above purpose, a display mirror according to the present invention comprises a substrate and a display device. The substrate has at least one light transmissive reflective layer; the display device comprises a first electrode, a light emitting region and a second electrode, the first electrode is located on the substrate, and the second electrode is located above the first electrode The light emitting region is located between the first electrode and the second electrode. In order to achieve the above object, a display mirror according to the present invention includes a mirror

Page 7 1264389 V. The invention (3) panel and a display device, wherein the mirror panel has a transparent substrate and at least one translucent reflective layer, and the translucent reflective layer is formed on the transparent substrate; the display device is The first electrode is disposed on the mirror panel, the second electrode is located on the first electrode, and the light emitting region is located at the first electrode and the second electrode The area of the light transmissive reflective layer is not less than the area of the display device, and a reflective reflector is disposed on the substrate or the transparent substrate region outside the display device.

The illuminating region is an electroluminescence region, which may be a single-layer or multi-layer electroluminescent layer, a luminescent medium (Media), etc., and the illuminating medium is, for example, but not limited to, electroluminescent gas and electro-induced gas re-excited. Luminous media, etc. The material of the light transmissive reflective layer is a metal or a dielectric material, and the light transmissive reflective layer has a light transmittance of about 10% to 90%. As described above, when the display device emits light, the user's eyes can see the displayed image of the display device, such as text, graphics or images, in addition to the reflected image of the background. On the other hand, when the display device does not emit light, the user sees the mirror surface.

That is, the reflected image. Compared with the prior art, the invention integrates the structure of the mirror surface and the display device, so that the display mirror has the functions of displaying information and reflecting images simultaneously, which not only extends the application range of the current mirror, but also increases user operation. Convenience. Moreover, integrating the display device with the mirror surface to reduce the volume occupied by the display mirror system can also

Page 8 1264389

Reduce the cost of using the display device and the mirror separately. Further, the display device has a simple process, and the cost of the display lens is not increased as compared with a general display device, which is extremely suitable for practical commercial applications. (4) [Embodiment] A display mirror according to a preferred embodiment of the present invention will be described below with reference to the related drawings. Hereinafter, the display mirror of the present invention will be described in detail by taking a rear view mirror for a vehicle as an example. As shown in FIG. 1A and FIG. 1B, a display mirror 1 according to a first embodiment of the present invention includes a mirror panel 11 and a display device 12. The mirror panel 11 has a transparent substrate 1 1 1 and a light transmissive reflective layer 1 1 1 , and a translucent reflective layer 1 2 1 is formed on the transparent substrate 1 11 ; the display device 12 has a a first electrode 122, a light-emitting region 123 and a second electrode 124. The first electrode 12 2 is located on the light-transmitting reflective layer 1 2 1 , and the second electrode 1 2 4 is located above the first electrode 12 2 The light-emitting region 1 2 3 is located between the first electrode 1 22 and the second electrode 1 2 4 . In this embodiment, the transparent substrate 11 1 may be a flexible substrate or a rigid substrate. At the same time, the transparent substrate can also be a plastic substrate or a glass substrate. The 'substrate and the plastic substrate may be a polycarbonate (PC) substrate, a polyester (PET) substrate, a cyclic olefin copolymer (COC) substrate or a metal chrome compound. Substrate-ring dilute copolymer (metallocene-

Page 9 1264389 V. Description of invention (,) based cyclic oleflri cop〇lymer, mCOC) substrate. As shown in Fig. 1A, the light-transmitting reflective layer 丨2 1 of the present embodiment is formed on the surface of the transparent substrate 11 1 . Here, the light-transmitting reflective layer 1 2 1 is formed on the transparent substrate 1 1 1 by vapor deposition or sputtering. In the present embodiment, the material of the light-transmitting reflective layer 1 2 1 is a metal or a dielectric material. Further, the light transmittance of the light-transmitting reflective layer 1 2 1 is about 1 〇 % to 9 〇 %. Further, as shown in Fig. 1A, the first electrode 1 2 2 is located on the light-transmitting reflective layer 112. In the present embodiment, the first electrode 1 2 2 is formed on the light-transmitting reflective layer 121 by sputtering or ion plating. Here, the first electrode 122 is generally used as an anode and is usually made of a transparent electrically conductive metal oxide such as oxidized giant tin (IT0), aluminum zinc oxide (AZ0) or indium zinc oxide (IZ0). In the present embodiment, when the material of the light-transmitting reflective layer 112 is metal, an insulating layer (not shown) is further formed between the light-transmitting reflective layer 121 and the first electrode 22. The insulating layer is a light transmissive substance for isolating the light transmissive reflective layer 1 21 and the first electrode 1 2 2 to prevent short circuit between the two due to contact. In addition, the light-emitting region 1 2 3 in this embodiment may be a light-emitting layer which is located on the first electrode 122. The light-emitting region 123 may be an organic electroluminescence (OLED) layer or an electroluminescence (EL) layer. The organic electro-optic layer usually includes a hole injection layer and a hole. a transfer layer, a light-emitting layer, an electron transport layer, and an electron injection layer (not shown); and the electroluminescent layer is made of a semiconductor material (such as a Π-VI semiconductor material), a fluorescent material, or both

Page 10 1264389 V. Combination of inventions (6). In addition, the light-emitting region 1 2 3 is formed by vapor deposition (eva ρ 〇ra 11 ο η ), spin coating (spinc 0 at丄ng), inkjet printing (mk jet pnntmg), or printing (printlng). On the first electrode 122. In addition, the light emitted by the light-emitting area 123 may be a combination of blue light, green light, red light, white light, other monochromatic light or monochromatic light. Referring again to FIG. 1A, the second electrode 丨 24 is located on the light-emitting area 123. Thus, the second electrode 124 is formed on the light-emitting region 123 by vapor deposition or sputtering. Further, the material of the second electrode 124 may be a metal such as Ming, calcium or magnesium silver or a metal alloy. Of course, the material of the second electrode 丨24 may also be aluminum/lithium fluoride or silver. Referring to Fig. 1A', in the display mirror 1, the area of the light-transmitting reflective layer 1 2 1 is not less than the area of the display device 12 to reduce the manufacturing cost. At the same time, when the area of the translucent reflective layer 1 21 is smaller than the area of the transparent substrate 11 1 , the remaining area of the surface of the transparent substrate 11 1 is formed with a reflective layer 丨丨 2 for use as a mirror surface. Referring to FIG. 1B, the display mirror 1 of the embodiment further includes a housing having an opening 1 3 1 , and the inner edge of the opening 1 3 1 is connected to the mirror panel and the display device 12 It is located in the housing 13. Here, the shape and size of the housing 13 can be adjusted according to actual needs. In addition, as shown in FIG. 2, the display mirror of the present embodiment further includes a protective layer 14 which is coated on the mirror panel 丨丨 and the display device 丨2. Here, the protective layer 14 is used to prevent the negative influence of oxygen or moisture on the display device 12. In the present embodiment, the protective layer 14 can be formed by chemical vapor deposition or

Page 11 1264389 V. INSTRUCTION DESCRIPTION (7) The sputtering method is formed on the mirror panel 1 1 and the display device 12, and the range of the protective layer 14 can be adjusted according to actual needs. In this embodiment, the housing 13 or the protective layer 14 can be engaged with an arm (not shown) for engaging the roof or the interior and exterior structures. In addition, the display mirror 1 of the embodiment further includes a control circuit board (not shown) for receiving, transmitting, and processing signals, and the control circuit board transmits the received signal to the display after being converted and processed. The device 1 2 is represented by the display device 12 in the form of characters, numbers, patterns or images. For example, the signal detected by the reversing radar and the image captured by the photographic system are transmitted to the control circuit board, and after being processed by the control circuit board, the image or the text is displayed by the display device 12, and the user can follow the mirror. I see the message. For example, when the mobile phone receives an incoming call, the signal is transmitted to the control circuit board. After the same processing, the text, digital or video (3G system) is displayed on the rear mirror, and the sound is also used by the vehicle. The speaker is sent out. 3A and 3B are a set of schematic diagrams of the specific implementation of FIG. 1A. In the present invention, when the display device emits light, the user's eyes can see the back surface displayed by the display device, such as characters, numbers, patterns or images, etc., as shown in the figure. 3A is shown. On the other hand, when the display device does not emit light, what the user's eyes see is the mirror surface, that is, the reflected image behind the car, as shown in Fig. 3B. Since the organic light emitting display has no viewing angle limitation, this advantage further increases the reality of the display mirror 1.

Page 12 1264389 V. Description of invention (: 8) Scope of application. In the present embodiment, the information displayed by the display device 12 may vary depending on the application. For example, · mobile phone caller ID and video, reversing images and distance, speed and various lights, real-time traffic and maps, electronic toll messages or a variety of information originally used in the car dashboard. Further, as shown in Figs. 4 and 5, a display mirror 2 according to a second embodiment of the present invention includes a substrate 21 1 and a display device 22. A light transmissive reflective layer 2 1 2 is formed on the substrate 21 1 ; the display device 2 2 has a first electrode 2 2 1 ,

a light-emitting region 2 2 2 and a second electrode 2 2 3, the first electrode 221 is located on the substrate 2 1 1 , the second electrode 2 2 3 is located above the first electrode 2 2 1 , and the light-emitting region 2 2 2 is Located between the first electrode 22 1 and the second electrode 2 2 3 . The components of the present embodiment are the same as those of the display mirror 1, such as the translucent reflective layer, the first electrode, the light-emitting region, and the second electrode, and have the same features and functions, and are not described herein again. The substrate 2 1 1 in this embodiment is a transparent substrate or a translucent substrate. As shown in Fig. 4, the light transmissive reflective layer 2 1 2 is located between the substrate 2 1 1 and the first electrode 2 2 1 . Further, as shown in Fig. 5, the substrate 2 1 1 is located between the light transmissive reflective layer 212 and the first electrode 21.

In addition, as shown in FIG. 4, the display mirror 2 of the present embodiment further includes a housing 2 3 having an opening, the inner edge of the opening is engaged with the substrate 2 1 1 , and the display device 22 is located in the housing 23 . in. Here, the shape, structure, and size of the housing 23 can be adjusted according to actual needs. In addition, as shown in FIG. 5, the display mirror 2 of the embodiment further includes a protection.

Page 13 1264389 V. Description of the Invention --——— --- = 俾 ^ is applied over the substrate 211 and the display device 22. Here, the present invention is protected from the negative effects of oxygen or moisture on the display device 22. In the % example, the protective layer 24 can be overlaid on the substrate 2U and the display device 22 by chemical vapor deposition, and the protective layer (4) can be adjusted according to actual needs. In this embodiment, the casing 23 or the protective layer 24 can be engaged with the arm (not shown), and the arm is also used for the display of the present embodiment with the roof or the interior of the vehicle and the exterior structure of the vehicle. The mirror 2 further includes a control circuit board (not shown:) to connect the 4 owed, the body 10 and the processing signal, and the control circuit board is: after the received signal is converted, it is transmitted to the display device 2 2, the T is not represented by the device 22 in the form of characters, numbers, patterns or images. In the present invention, the "light-emitting region is an electroluminescence region, which may be an electroluminescent layer of a single or a singular layer structure, The illuminating medium (M ed丨a ) or the like, the illuminating medium is, for example, but not limited to, the electroluminescent gas and the electro-induced gas re-energizing the X-ray medium, etc. The display device of the present invention includes but is not limited to Organic Electroluminescence (OEL) display device, inorganic electroluminescence (EL) display device, Light Emitting Diode (LED) display device, Liquid Crystal Display (LCD), and electricity Pulp display device (pla Sma Display Panel, PDP), vacuum fluorescent display (VFD), field emission display device (Fieid)

Page 14 1264389 V. Description of invention (10)

Emission Display, FED) and electrochromic display (Electro-chromic Display). The invention can be applied to different ranges according to requirements, such as, but not limited to, a rear mirror, a side mirror or a turning mirror, etc., and the brightness of the display device of the present invention can also be appropriately adjusted according to the intensity of the external light source. Its own brightness to match the comfort of the user's operation. In the present invention, when the display device emits light, the user's eyes can see the displayed image of the display device, such as text, graphics or images, in addition to the reflected image of the background. On the other hand, when the display device does not emit light, what the user's eyes see is the mirror surface, that is, the reflected image. Compared with the prior art, the invention integrates the structure of the mirror surface and the display device, so that the display mirror has the functions of displaying information and reflecting images simultaneously, which not only extends the application range of the current mirror, but also increases user operation. Convenience. Moreover, integrating the display device and the mirror into the display mirror system can reduce the volume occupied, and can also reduce the cost of using the display device and the mirror separately. Further, the display device has a simple process, and the cost of the display lens is not increased as compared with a general display device, and is extremely suitable for practical commercial applications. The above is intended to be illustrative only and not limiting. Any equivalent modifications or alterations to the spirit and scope of the present invention are intended to be included in the scope of the appended claims.

Page 15 1264389 Schematic description of the simple section of the schematic section - the example of the implementation of the mirror - in the description of the single-simplification of the diagram is the diagram rL A 1-i, Figure N) / five maps in the Mingfa This is the meaning of the diagram of the B -11 diagram; the diagram of the first section of the diagram is the interpretation of the body - the example of the embodiment of the physical display of the face - another mirror shows the example of the implementation of the body Mirror shows the example of the implementation of the first in the Ming dynasty is the Department · ' B Figure 3 Figure and shows the group A 3, Figure 1 shows the diagram of the meaning of the mirror shows the example of the implementation of the second Mingfa This is a diagram of the figure 4 and the diagram shows the example of another mirror display. The second embodiment of the system is shown in the figure 5. The symbol of the component: I display mirror II mirror panel III transparent substrate 112 reflective layer 12 display device 121 light transmission Reflective layer 122 first electrode 123 light emitting region 124 second electrode 13 housing

Page 16 1264389

Page 17

Claims (1)

1264389________ 6. Patent application scope 1. A display mirror comprising: a substrate having at least one light transmissive reflective layer; and a display device comprising a first electrode, a light emitting region and a first a second electrode is disposed on the substrate, the second electrode is located on the first electrode, and the light emitting region is located between the first electrode and the second electrode. 2. The display mirror of claim 1, wherein the area of the light transmissive reflective layer is not less than the area of the display device, and the substrate area outside the display device is provided with a reflective layer. 3. The display mirror of claim 1, further comprising a housing having an opening, the inner edge of the opening being engaged with the mirror panel, and the display device being located in the housing. 4. The display mirror of claim 1, further comprising a protective layer overlying the display device and the mirror panel. 5. The display mirror of claim 1, further comprising a control circuit board for receiving, transmitting and processing signals. 6. The display mirror of claim 1, wherein the illuminating region comprises at least one organic electroluminescence layer. The invention relates to a display mirror according to claim 1, wherein the illuminating zone comprises at least one electroluminescence layer or a luminescent medium. 8. The display mirror according to claim 1, wherein the material of the light transmissive reflective layer is metal. 9. The display mirror of claim 1, wherein the material of the light transmissive reflective layer is a dielectric material. The display lens of claim 1, wherein the light transmissive reflective layer has a light transmittance of about 10% to 90%. 1 . A display mirror comprising: a mirror panel having a transparent substrate and at least one light transmissive reflective layer, wherein the light transmissive reflective layer is formed on the transparent substrate; and a display device, The display device includes a first electrode, an illuminating region, and a second electrode. The first electrode is located on the mirror panel, and the second electrode is located on the first electrode, and the illuminating region is located at the first Between the electrode and the second electrode. The display mirror according to claim 11, wherein the area of the light transmissive reflective layer is not less than the area of the display device, and is located in the display. Page 19 1264389 VI. Scope of Application The transparent substrate area outside the device is provided with a reflective layer. The display mirror of claim 11, wherein the light transmissive reflective layer is located between the transparent substrate and the first electrode. The display mirror of claim 11, wherein the transparent substrate is located between the light transmissive reflective layer and the first electrode. The display mirror of claim 11, further comprising a housing having an opening, an inner edge of the opening being engaged with the mirror panel, and the display device being located in the housing in. The display mirror of claim 11, further comprising a protective layer overlying the display device and the mirror panel. 1. The display mirror of claim 1 further comprising a control circuit board for receiving, transmitting and processing signals. The display mirror of claim 11, wherein the illuminating region comprises at least one layer of organic electroluminescence (0 r g a n i Electroluminescence). The display mirror of claim 11, wherein the illuminating region comprises at least one electroluminescence layer or a luminescent medium. 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 The display mirror according to claim 11, wherein the material of the light transmissive reflective layer is a dielectric material. 2. The display mirror of claim 11, wherein the light transmissive reflective layer has a light transmittance of about 10% to 90%. Page 21