JP2017181746A - Reflective liquid crystal display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a small reflective liquid crystal display device that has good display quality and is stable in operation.SOLUTION: A light-shielding mask 31 is disposed in a periphery of a display region of a reflective liquid crystal display panel 28; and a light source 34 is disposed on the light-shielding mask 31. In this configuration, as the light emitting from the light source 34 is reliably blocked by the light-shielding mask 31, an erroneous operation due to intrusion of the light emitted from the light source 34 into a circuit provided in the periphery of the display region can be prevented. Further, since the light source 34 is disposed in a small space on the light-shielding mask 31, the reflective liquid crystal display device can be made small in size.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a reflective liquid crystal display device.

  Since a liquid crystal display panel is not a self-luminous display device but modulates light from a light source with liquid crystal to display an image, a light source is required. The light source is disposed around the liquid crystal display panel. As a specific configuration thereof, Patent Document 1 discloses a liquid crystal display device in which the light source is directly disposed on the liquid crystal display panel.

  FIG. 6 is a cross-sectional view of a conventional liquid crystal display device. A second substrate 3 is bonded to the first substrate 1 with a predetermined gap through a sealing material 5, and a liquid crystal 8 is interposed between the first substrate 1 and the second substrate 3. Is enclosed to form a liquid crystal display panel. The first substrate 1 and the second substrate 3 are translucent substrates, and a transparent pixel electrode and a light reflection layer (not shown) are formed on the surface of the first substrate 1 on the side in contact with the liquid crystal 8. A transparent counter electrode (not shown) is formed on the surface of the second substrate 3 on the side in contact with the liquid crystal 8.

  A flexible printed circuit board (FPC) 35 is disposed on the second substrate 3, and a light source 34 made of a light emitting diode (LED) is mounted thereon. A transparent substrate 73 is disposed on the light source 34, and a reflection plate 71 is provided on the outer periphery of the liquid crystal display panel, the FPC 35, the light source 34, and the transparent substrate 73. In this configuration, since the light source 34 is directly disposed on the liquid crystal display panel (second substrate 3), the liquid crystal display device can be reduced in size.

Japanese Patent Laid-Open No. 11-109876

  A driver circuit for driving a switching element in the display area and a light source control circuit for controlling the light source may be provided around the display area of the liquid crystal display panel, but malfunction occurs when light enters these circuits. Wake up. Further, when the viewer of the liquid crystal display panel recognizes the periphery of the display area, the display quality of the image is deteriorated. However, in the liquid crystal display device disclosed in Patent Document 1, since the periphery of the display area is shielded by only the FPC, it is difficult to reliably cope with these problems.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a small reflective liquid crystal display device having good display quality and stable operation.

  A reflective liquid crystal display panel, a light shielding mask that shields the periphery of the display area of the reflective liquid crystal display panel, a light source that supplies light to the display area, and light that is emitted from the display area is selectively transmitted. A reflective liquid crystal display device having a display-side polarizing member, wherein the light source is disposed on the light shielding mask.

  Around the reflection type liquid crystal display panel, there is a connection part for electrically connecting the reflection type liquid crystal display panel to an external circuit, and the shading mask has an overhang part protruding on the connection part. And it is good also as a reflection type liquid crystal display device which provided the said light source on this overhang | projection part.

  A reflective liquid crystal display device having a conductive wire for electrically connecting the reflective liquid crystal display panel to the external circuit, and a connection portion between the conductive wire and the reflective liquid crystal display panel is the connection portion Also good.

  A reflective liquid crystal display device having a light source side polarizing member that emits light emitted from the light source to the display region side as linearly polarized light, and the light source side polarizing member is disposed on the light shielding mask may be used.

  A reflection type liquid crystal display device in which the light source side polarizing member is disposed on the projecting portion of the light shielding mask may be used.

  It may be a reflective liquid crystal display device that includes a light source side light guide member that guides light emitted from the light source to the light source side polarization member, and the light source side light guide member is disposed on the light shielding mask.

  The light source side light guide member may be a reflective liquid crystal display device in which the light source side light guide member is disposed on the projecting portion of the light shielding mask.

  A reflective liquid crystal display device in which a flat display-side light guide member that guides light emitted from the light source to the display region is disposed between the reflective liquid crystal display panel and the display-side polarizing member. It is also good.

  The display-side light guide member may be a reflective liquid crystal display device that is a hologram light guide member having a transmission hologram layer on a surface facing the display region.

  The display-side light guide member is a composite light guide member in which a lower light guide member and an upper light guide member having different refractive indexes are stacked, and a boundary between the lower light guide member and the upper light guide member The surface may be a reflective liquid crystal display device that is a reflective surface that reflects light emitted from the light source toward the display area.

  A reflective liquid crystal display device in which a light absorbing member is disposed on the surface of the display side light guide member opposite to the side close to the light source side polarizing member may be used.

  The reflective liquid crystal display device may include a flexible printed circuit connected to the reflective liquid crystal display panel and a flexible printed circuit connected to the light source, and the two flexible printed circuits may be integrated with each other.

  The reflective liquid crystal display panel and the light shielding mask may be bonded, and the light shielding mask and the light source may be bonded.

  The light-shielding mask may be a reflective liquid crystal display device in which a concave portion for positioning the light source is provided.

  According to the present invention, a light shielding mask is disposed around the display area of the liquid crystal display panel, and a light source is disposed on the light shielding mask, so that light emitted from the light source is reliably shielded by the light shielding mask. The light emitted from the light source can be prevented from entering a circuit provided around the display area and causing a malfunction, and the light source is disposed in a small space on the light shielding mask. The liquid crystal display device can be reduced in size.

  Further, when the light shielding mask extends outside the outer peripheral portion of the liquid crystal display panel and the light source is disposed in the extended portion, the light source moves away from the liquid crystal display panel, so that the observer can visually recognize the light source. This makes it difficult to improve the display quality of the image and to reduce the influence of heat and electrical noise generated from the light source on the liquid crystal display panel. In particular, when the light-shielding mask extends over the electrical connection between the liquid crystal display panel and the external circuit, and the light source is disposed in the extended portion, the light source becomes a dead space on the electrical connection. Since the liquid crystal display device is three-dimensionally arranged, the reflective liquid crystal display device can be further downsized.

1 is a plan view of a reflective liquid crystal display device according to a first embodiment of the present invention. It is sectional drawing of the reflection type liquid crystal display device in the 1st Embodiment of this invention. It is sectional drawing of the reflection type liquid crystal display device in the 2nd Embodiment of this invention. It is sectional drawing of the reflection type liquid crystal display device in the 3rd Embodiment of this invention. It is sectional drawing of the reflection type liquid crystal display device in the 4th Embodiment of this invention. It is sectional drawing of the conventional liquid crystal display device.

  FIG. 1 is a plan view of a reflective liquid crystal display device according to a first embodiment of the present invention. 2 is a cross-sectional view taken along line AA in FIG. Hereinafter, the first embodiment will be described with reference to FIGS. 1 and 2.

  The reflective liquid crystal display panel 28 used in the reflective liquid crystal display device uses, for example, an integrated circuit mounting substrate made of a silicon substrate having a semiconductor circuit that applies a predetermined voltage to the liquid crystal 8 as the first substrate 1. A second substrate 3 made of a glass substrate is bonded to the first substrate 1 with a predetermined gap with a sealing material 5, and the liquid crystal 8 is injected from an injection port provided in a part of the sealing material 5. This is a reflective liquid crystal display panel having an LCOS (Liquid Crystal On Silicon) structure in which an entrance is sealed with a sealing material.

  The reflective liquid crystal display panel 28 is fixed on the circuit board 21 using a double-sided adhesive tape 22. The reflective electrode or semiconductor circuit on the first substrate 1 and the circuit substrate 21 are electrically connected by a conductive wire 25 made of an aluminum thin wire formed by an ultrasonic wire bonding method or the like. The conduction wire 25 is covered with a wire protection resin 26 for protection. The transparent electrode on the second substrate 3 and the circuit board 21 are electrically connected by a vertical conduction member 11 made of a conductive adhesive. The circuit board 21 is electrically connected to an external circuit by a flexible printed circuit board (FPC) 33. An external circuit connecting connector 24 is provided on the circuit board 21, and the FPC 33 is connected to the external circuit connecting connector 24 and is stably held.

  On the second substrate 3, a light shielding mask 31 is fixed by an adhesive member made of double-sided tape or resin. The light shielding mask 31 is, for example, a light shielding plate obtained by injection molding a black resin having a light shielding property, or a light shielding plate obtained by molding a metal plate by press working and painting the surface with black ink. 28 is formed in a frame shape so as to cover the periphery of the display area 28, and further extends over the electrical connection portion (connection portion of the conductive wire 25) between the reflective liquid crystal display panel 28 and the circuit board 21. The end portion of the light shielding mask 31 is engaged with and held by a groove provided in the housing 57.

  A light source 34 having light emitting diodes (LEDs) of three colors of red, green and blue (RGB) as one package is provided on the protruding portion of the light shielding mask 31. The light source 34 is fixed to the light shielding mask 31 with double-sided tape or resin. The light source 34 is mounted on an FPC 35 for a light source that is formed integrally with the FPC 33. For positioning and stabilization, it is preferable that the end portion of the light shielding mask 31 is engaged with a groove provided in the housing 57 and the light source 34 is fixed to the light shielding mask 31. .

  A light source side light guide member 37, a light source side diffusion member 38, and a light source side polarizing member 39 are further provided on the protruding portion of the light shielding mask 31. The light source side light guide member 37 is made of, for example, a light reflecting member having a space for accommodating the light source 34 or a light guide plate made of a transparent resin, and is arranged so that light emitted from the light source 34 enters. Yes. The light source side diffusing member 38 and the light source side polarizing member 39 are arranged so as to overlap each other so that the emitted light from the light source side light guide member 37 sequentially enters.

  Above the display area of the reflective liquid crystal display panel 28, a composite polarizing plate 55 is formed by laminating a reflective polarizing plate 53 and an absorbing polarizing plate 54 so that their polarization transmission axes are parallel to each other. The plate 53 is arranged facing the reflective liquid crystal display panel 28 side. The composite polarizing plate 55, the light source side light guide member 37, the light source side diffusion member 38, and the light source side polarization member 39 are directly or indirectly held by a casing 57 fitted to the circuit board 21.

  The light emitted from the light source 34 passes through the light source side light guide member 37 and enters the light source side diffusion member 38, diffuses by passing through the light source side diffusion member 38, and enters the light source side polarizing member 39, By passing through the light source side polarizing member 39, it becomes linearly polarized light and enters the reflective polarizing plate 53 of the composite polarizing plate 55, is reflected by the reflective polarizing plate 53 and enters the display area of the reflective liquid crystal display panel 28. .

  The linearly polarized light incident on the display area of the reflective liquid crystal display panel 28 is modulated by the liquid crystal 8, reflected by the reflective electrode on the first substrate 1, and emitted to the composite polarizing plate 55 side. Of the light emitted to the composite polarizing plate 55 side, the light whose polarization axis is parallel to the transmission axis of the composite polarizing plate 55 is transmitted through the composite polarizing plate 55 and emitted to the viewer side, and the polarization axis is the composite polarizing plate 55. The light parallel to the reflection axis or absorption axis (light orthogonal to the transmission axis) is not reflected or absorbed by the composite polarizing plate 55 and emitted to the viewer side, and is recognized as an image by the viewer due to these relationships. Is done.

  In the present embodiment, since the light emitted from the light source 34 is reliably shielded by the light shielding mask 31, the visibility of the image displayed in the display area of the reflective liquid crystal display panel 28 can be improved, and the reflective type It is possible to prevent light from entering a circuit provided around the display area of the liquid crystal display panel 28 and causing malfunction.

  Further, since the light source 34 is disposed on the strong light shielding mask 31, the optical axis is prevented from being shifted and the display quality can be kept stable and good. In particular, here, since the light source side light guide member 37, the light source side diffusion member 38, and the light source side polarizing member 39 are also arranged on the light shielding mask 31, the display quality can be kept more stable and better.

  Further, since the light shielding mask 31 is projected on the conductive wire 25 for electrical connection between the reflective liquid crystal display panel 28 and the circuit board 21, and the light source 34 is three-dimensionally arranged on the projected portion, the display region is displayed. The light source 34 can be reliably moved to a position where it does not interfere with the light source 34, and the light source 34 moves away from the reflective liquid crystal display panel 28, so that heat and electrical noise generated by the light source 34 are reflected by the reflective liquid crystal display panel 28. Can be reduced. In particular, when the protruding portion of the light shielding mask 31 is in contact with the wire protection resin 26, the heat generated by the light source 34 from the contacted portion can be released to the wire protection resin 26. Further, since the light source 34 is disposed in the dead space on the conductive wire 25, the reflective liquid crystal display device can be reduced in size. In particular, in the present embodiment, the light source side light guide member 37, the light source side diffusion member 38, and the light source side polarizing member 39 are also arranged in the protruding portion of the light shielding mask 31, so that the reflective liquid crystal display device can be further downsized. Can do.

  Note that the portion of the light shielding mask 31 that protrudes over the electrical connection portion (conduction wire 25) between the reflective liquid crystal display panel 28 and the circuit board 21 protrudes over other regions around the reflective liquid crystal display panel 28. It can also be a part. Further, the light source 34, the light source side light guide member 37, the light source side diffusion member 38, and the light source side polarizing member 39 are arranged in a portion (a portion located on the second substrate 3) that is not the protruding portion of the light shielding mask 31. In this case, the light shielding mask 34 may be a light shielding film formed on the surface of the second substrate 3. Further, the light source side light guide member 37, the light source side diffusion member 38, and the light source side polarizing member 39 can be omitted as appropriate.

  Next, a second embodiment will be described with reference to FIG. FIG. 3 is a cross-sectional view of the reflective liquid crystal display device according to the second embodiment of the present invention, and shows a cross section taken along the line A-A similar to FIG. On the second substrate 3 constituting the reflective liquid crystal display panel 28, a light shielding mask 31 is aligned and adhered by an adhesive member made of double-sided tape or the like. The light shielding mask 31 is, for example, a light shielding plate obtained by injection molding a black resin having a light shielding property, or a light shielding plate obtained by molding a metal plate by press working and painting the surface with black ink. A part of the light shielding mask 31 projects from the periphery of the display area of the reflective liquid crystal display panel 28 to the connection portion between the circuit board 21 and the conductive wire 25 of the reflective liquid crystal display panel 28, and the projected part is A light source 34 and a light source side polarizing member 39 are disposed. The light source 34 and the light source side polarizing member 39 are held by a frame-like light source holding member 61 arranged on the light shielding mask 31, and the positions on the light shielding mask 31 are fixed.

  A flat display-side light guide member 62 is disposed on the light shielding mask 31 so as to cover the display area of the reflective liquid crystal display panel 28. The display-side light guide member 62 is made of, for example, a light guide plate made of a translucent resin. The display-side light guide member 62 guides the linearly polarized light emitted from the light source side polarization member 39 to the display area and projects it toward the display area. It is configured to shine. On the surface (upper surface) opposite to the side close to the second substrate 3 of the display side light guide member 62, fine unevenness that reflects the linearly polarized light emitted from the light source side polarization member 39 toward the display region. Are integrally formed, and a display-side polarizing member 65 made of a reflective polarizing plate or an absorbing polarizing plate is disposed. The display side polarizing member 65 plays a role similar to that of the composite polarizing plate 55 shown in FIG.

  In order to prevent unnecessary return light (reflected light) from entering the display area on one side surface of the display side light guide member 62 opposite to the side close to the light source side polarization member 39, A light absorbing member 68 is provided. In the present embodiment, the light absorbing member 68 is provided only on one side surface of the display side light guide member 62, but all the regions of the side surface of the display side light guide member 62 that are not covered with the light source side polarizing member 39 are included. If the light absorbing member 68 is provided so as to cover the light, unnecessary light reflection can be more effectively prevented.

  Note that means for electrically connecting the reflective liquid crystal display panel 28 and the light source 34 to an external circuit is not shown, but for example, an FPC 33 or FPC 35 as shown in FIG. Can be adopted.

  In the present embodiment, since the flat display-side light guide member 62 is used, the reflective liquid crystal display device can be further downsized.

  Next, a third embodiment will be described with reference to FIG. FIG. 4 is a cross-sectional view of a reflective liquid crystal display device according to the third embodiment of the present invention, and shows a cross section taken along the line AA similar to FIG. On the second substrate 3 constituting the reflective liquid crystal display panel 28, a light shielding mask 31 is aligned and adhered by an adhesive member made of double-sided tape or the like. The light shielding mask 31 is, for example, a light shielding plate obtained by injection molding a black resin having a light shielding property, or a light shielding plate obtained by molding a metal plate by press working and painting the surface with black ink. A part of the light shielding mask 31 protrudes from the periphery of the display area of the reflective liquid crystal display panel 28 to the connection part between the reflective liquid crystal display panel 28 and the flexible printed circuit board (FPC) 69, and the projected part A light source 34 and a light source side polarizing member 39 are disposed. The light source 34 and the light source side polarizing member 39 are held by a frame-like holding member 61 disposed on the light shielding mask 31, and the positions on the light shielding mask 31 are fixed.

  The FPC 69 is obtained by functionally integrating the circuit board 21 and the FPC 33 shown in FIG. 1, and one end thereof is connected to the first substrate 1 of the reflective liquid crystal display panel 28, thereby The reflective electrode on the first substrate 1 and the transparent electrode on the second substrate 3 are electrically connected to an external circuit via the FPC 69. The transparent electrode on the second substrate 3 is electrically connected to the wiring on the first substrate 1 through the inside of the reflective liquid crystal display panel 28.

  An FPC 35 for a light source is integrated with the FPC 69. One end of the light source FPC 35 is disposed on the light shielding mask 31, and the light source 34 is surface-mounted thereon. The surface of the FPC 35 in contact with the light shielding mask 31 is not provided with irregularities such as electrode terminals, and the FPC 35 and the light shielding mask 31 are fixed to each other by an adhesive member so that substantially flat surfaces are in contact with each other. Yes.

  A holding substrate 75 is bonded to the surface (lower surface) opposite to the side close to the liquid crystal 8 of the first substrate 1 with a double-sided adhesive tape 22. The holding substrate 75 serves to hold the reflective liquid crystal display panel 28 when the reflective liquid crystal display device is incorporated in an electronic apparatus such as an electronic viewfinder, but may be omitted.

  A flat hologram light guide member 67 is disposed on the light shielding mask 31 so as to cover the display area of the reflective liquid crystal display panel 28. The hologram light guide member 67 is made of, for example, a transmission hologram type light guide plate made of a translucent resin, and guides the linearly polarized light emitted from the light source side polarization member 39 above the display region to display the display region. It is configured to emit light toward. A transmission hologram layer that diffracts the guided light toward the display area of the reflective liquid crystal display panel 28 is formed on the surface (lower surface) of the hologram light guide member 67 on the side close to the second substrate 3. Yes. In addition, a display-side polarizing member 65 made of a reflective polarizing plate or an absorbing polarizing plate is disposed on the surface (upper surface) opposite to the side close to the second substrate 3 of the hologram light guide member 67. .

  In order to prevent unnecessary return light (reflected light) from entering the display area on one side surface of the hologram light guide member 67 opposite to the side close to the light source side polarizing member 39, light is emitted. An absorbing member 68 is provided. In the present embodiment, the light absorbing member 68 is provided only on one side surface of the hologram light guide member 67, but covers all of the side surface of the hologram light guide member 67 that is not covered by the light source side polarizing member 39. If the light absorbing member 68 is provided as described above, unnecessary light reflection can be more effectively prevented.

  In the present embodiment, the FPC 69 in which the circuit board 21 and the FPC 33 are functionally integrated is used, and the FPC 35 for the light source is integrated with the FPC 69, so that the number of parts can be reduced and the size can be reduced. Become. Further, since the hologram light guide member 67 is used, the light emitted from the light source 34 can be efficiently projected onto the display area of the reflective liquid crystal display panel 28.

  Next, a fourth embodiment will be described with reference to FIG. FIG. 5 is a cross-sectional view of a reflective liquid crystal display device according to the fourth embodiment of the present invention, and shows a cross section taken along the line AA similar to FIG. On the second substrate 3 constituting the reflective liquid crystal display panel 28, a light shielding mask 31 is aligned and adhered by an adhesive member made of double-sided tape or the like. The light shielding mask 31 is, for example, a light shielding plate obtained by injection molding a black resin having a light shielding property, or a light shielding plate obtained by molding a metal plate by press working and painting the surface with black ink. A part of the light shielding mask 31 projects from the periphery of the display area of the reflective liquid crystal display panel 28 to the connection portion between the circuit board 21 and the conductive wire 25 of the reflective liquid crystal display panel 28, and the projected part is A light source 34 and a light source side polarizing member 39 are disposed. The light source 34 and the light source side polarizing member 39 are held by a frame-like light source holding member 61 arranged on the light shielding mask 31, and the positions on the light shielding mask 31 are fixed. Further, the light shielding mask 31 is provided with a concave portion 66 for positioning the light source 34 in the lateral direction and the height direction, and the light source 34 is positioned at a predetermined position by engaging the light source 34 therewith. Has been.

  A flat composite light guide member 70 is disposed on the light shielding mask 31 so as to cover the display area of the reflective liquid crystal display panel 28. The composite light guide member 70 is composed of a single light guide plate as a whole in which the lower light guide member 63 and the upper light guide member 64 are laminated in a substantially wedge-shaped cross section, and the linearly polarized light emitted from the light source side polarization member 39 is obtained. The reflective liquid crystal display panel 28 is configured to guide light above the display area and project light toward the display area. The boundary surface between the lower light guide member 63 and the upper light guide member 64 constituting the composite light guide member 70 directs linearly polarized light emitted from the light source side polarization member 39 toward the display area of the reflective liquid crystal display panel 28. The curved surface is a reflective surface, and further has a predetermined refractive index difference between the lower light guide member 63 and the upper light guide member 64. A display-side polarizing member 65 made of a reflective polarizing plate or an absorbing polarizing plate is disposed on the surface (upper surface) opposite to the side close to the second substrate 3 of the composite light guide member 70.

  In order to prevent unnecessary return light (reflected light) from entering the display area on one side surface of the composite light guide member 70 opposite to the side close to the light source side polarizing member 39, light An absorbing member 68 is provided. In this embodiment, the light absorbing member 68 is provided only on one side surface of the composite light guide member 70, but covers all of the side surface of the composite light guide member 70 that is not covered with the light source side polarizing member 39. If the light absorbing member 68 is provided as described above, unnecessary light reflection can be more effectively prevented.

  In the present embodiment, since the light source 34 is engaged with the recess 66 provided in the light shielding mask 31, the light source 34 can be easily and reliably positioned, and the light source 34 can be stably placed on the light shielding mask 31. Can be held in. In addition, since the composite light guide member 70 is used, the reflection type liquid crystal display panel while suppressing irregular reflection of the light emitted from the light source 34 at the boundary surface between the lower light guide member 63 and the upper light guide member 64. It can be efficiently reflected to 28 display areas.

  The present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention. Moreover, the above embodiment can be implemented in combination with each other without departing from the spirit of the present invention.

DESCRIPTION OF SYMBOLS 1 1st board | substrate 3 2nd board | substrate 5 Sealing material 8 Liquid crystal 11 Vertical conduction member 21 Circuit board 22 Double-sided adhesive tape 24 Connector for external circuit 25 Conduction wire 26 Wire protection resin 28 Reflective liquid crystal display panel 31 Light shielding mask 33 Flexible Printed circuit board (FPC)
34 Light source 35 Flexible printed circuit board (FPC)
37 Light source side light guide member 38 Light source side diffusion member 39 Light source side polarization member 53 Reflective polarizing plate 54 Absorption type polarizing plate 55 Composite polarizing plate 57 Housing 61 Light source holding member 62 Display side light guide member 63 Lower light guide member 64 Upper light guide member 65 Display side polarizing member 66 Recessed portion 67 Hologram light guide member 68 Light absorbing member 69 Flexible printed circuit board (FPC)
70 Composite light guide member 71 Reflector 73 Transparent substrate 75 Holding substrate

Claims (14)

A reflective liquid crystal display panel, a light shielding mask that shields the periphery of the display area of the reflective liquid crystal display panel, a light source that supplies light to the display area, and light that is emitted from the display area is selectively transmitted. A reflective liquid crystal display device having a display-side polarizing member,
A reflective liquid crystal display device, wherein the light source is disposed on the light shielding mask.   Around the reflection type liquid crystal display panel, there is a connection part for electrically connecting the reflection type liquid crystal display panel to an external circuit, and the shading mask has an overhang part protruding on the connection part. The reflective liquid crystal display device according to claim 1, wherein the light source is provided on the projecting portion.   A conductive wire for electrically connecting the reflective liquid crystal display panel to the external circuit is provided, and a connection portion between the conductive wire and the reflective liquid crystal display panel is the connection portion. Item 3. A reflective liquid crystal display device according to Item 2.   3. A light source side polarizing member that emits light emitted from the light source as linearly polarized light toward the display region, and the light source side polarizing member is disposed on the light shielding mask. 4. A reflective liquid crystal display device according to item 3.   5. The reflective liquid crystal display device according to claim 4, wherein the light source side polarizing member is disposed on the projecting portion of the light shielding mask.   6. The light source side light guide member for guiding light to the light source side polarization member emitted from the light source, and the light source side light guide member is disposed on the light shielding mask. 2. A reflective liquid crystal display device according to 1.   The reflective liquid crystal display device according to claim 6, wherein the light source side light guide member is disposed on the projecting portion of the light shielding mask.   A flat display-side light guide member that guides light emitted from the light source to the display region is disposed between the reflective liquid crystal display panel and the display-side polarizing member. The reflective liquid crystal display device according to claim 1.   9. The reflective liquid crystal display device according to claim 8, wherein the display-side light guide member is a hologram light guide member having a transmission hologram layer on a surface facing the display area.   The display-side light guide member is a composite light guide member in which a lower light guide member and an upper light guide member having different refractive indexes are stacked, and a boundary between the lower light guide member and the upper light guide member 9. The reflection type liquid crystal display device according to claim 8, wherein the surface is a reflection surface that reflects light emitted from the light source toward the display region.   The light absorption member is arrange | positioned at the surface on the opposite side to the side close | similar to the said light source side polarizing member of the said display side light guide member, The Claim 1 characterized by the above-mentioned. Reflective liquid crystal display device.   2. A flexible printed circuit board connected to the reflective liquid crystal display panel and a flexible printed circuit board connected to the light source, wherein the two flexible printed circuit boards are integrated with each other. 11. The reflective liquid crystal display device according to any one of 11.   The reflective liquid crystal display device according to any one of claims 1 to 12, wherein the reflective liquid crystal display panel and the light shielding mask are adhered, and the light shielding mask and the light source are adhered. .   The reflective liquid crystal display device according to claim 1, wherein the light shielding mask is provided with a recess for positioning the light source.

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