CN211086871U - Active reflection type display module - Google Patents

Abstract

The utility model relates to a display module assembly technical field, the utility model discloses an initiative reflection-type display module assembly, including display screen drive circuit board, the reflection-type display screen of being connected with display screen drive circuit board electricity, area source drive circuit board and surface light source, area source includes reflection of light base plate, many L ED lamp pearls and a plurality of reflector, display screen drive circuit board and surface light source drive circuit board are in reflection-type display screen rear, the area source is in reflection-type display screen side the place ahead, many L ED lamp pearl intervals are fixed on reflection of light base plate and are connected with area source drive circuit board electricity, each L ED lamp pearl is inside the reflector that corresponds, a plurality of reflectors are fixed on reflection of light base plate side by side, each reflector all sets the light outlet towards reflection-type display screen, overcome the less light in the light beam that current initiative reflection-type display module assembly has each L ED lamp pearl outgoing and illuminate reflection-type display screen and more light is by the defect of loss, the luminous efficiency of each L ED and the display performance of reflection-type display screen have been.

Description

Active reflection type display module

Technical Field

The utility model relates to a display module assembly technical field especially relates to an initiative reflection-type display module assembly.

Background

The existing reflection-type display module is mainly divided into a passive reflection-type display module and an active reflection-type display module, the passive reflection-type display module comprises a reflection-type display screen and a first circuit board with a display screen driving circuit (hereinafter, the first circuit board is referred to as a display screen driving circuit board for short), the display screen driving circuit board is electrically connected with the reflection-type display screen, the reflection-type display screen provides a display function under the driving of the display screen driving circuit board and is illuminated by ambient light when providing the display function, besides the reflection-type display screen and the display screen driving circuit board, the active reflection-type display module further comprises a plurality of L ED lamp beads and a second circuit board with a surface light source driving circuit (hereinafter, the second circuit board is referred to as a surface light source driving circuit board for short), the surface light source driving circuit board is electrically connected with each L ED lamp bead, each L ED lamp bead emits light beams under the driving of the surface light source driving circuit board, the reflection-type display screen is illuminated by the light beams when providing the display function, compared with a passive reflection-type.

However, less light of the light beams emitted from each L ED lamp bead illuminates the reflective display screen and more light is lost, and the lost light does not illuminate the reflective display screen, so that the utilization rate of the light beams is low, and the luminous efficiency of each L ED lamp bead is low and the display performance of the reflective display screen is poor.

SUMMERY OF THE UTILITY MODEL

The utility model discloses there are less light in the light beam of each L ED lamp pearl outgoing to current initiative reflection-type display module and illuminate reflective display screen and more light by the not enough of loss, provide an initiative reflection-type display module, initiative reflection-type display module include display screen dirver circuit board and with the reflective display screen that display screen dirver circuit board electricity is connected, reflective display screen is including being the shady face and the printing opacity face that the layering distributes, display screen dirver circuit board is located shady face rear, initiative reflection-type display module is still including being located the area source dirver circuit board at shady face rear with be located the area source in printing opacity face side the place ahead, the area source includes reflecting substrate, many L ED lamp pearl and a plurality of reflector, many L ED lamp pearl interval is fixed on the reflecting substrate and with area source dirver circuit board electricity is connected, each L ED lamp pearl is located the correspondence respectively inside the reflector, it is a plurality of, the reflector is fixed side by side on the reflecting substrate, each the reflector has all set the light-emitting window orientation the printing opacity face.

The utility model provides an active reflection-type display module assembly's beneficial effect is that reflective display screen provides the display function under display screen drive circuit board effect, each L ED lamp pearl is the light beam that exits under the drive of area source drive circuit board, the partial light in this light beam is by the reflection of light cavity change direction that corresponding reflector and reflection of light base plate constitute, light after the change direction is from light-emitting outlet outgoing to light-transmitting surface, the light-emitting scope of light beam has been reduced through the reflection of light cavity, the light that plays in the light beam and illuminates reflective display screen effect has been reduced in the light beam by the light of loss, the luminous efficacy of each L ED lamp pearl and the display performance of reflective display screen have been improved, make area source homogenization light-emitting through being a plurality of reflectors that the align to grid distributes on reflection of light base plate, and display screen drive circuit board, area source drive circuit board and area source do not all shelter from the light-transmitting surface, area source homogenization reflective display screen has been guaranteed.

On the basis of the technical scheme, the utility model discloses still make following improvement:

furthermore, a vertical distance along the direction vertical to the light transmission surface is reserved between each L ED lamp bead and the light transmission surface, and the vertical distance is smaller than or equal to 100 millimeters.

The beneficial effects of the further scheme are as follows: the vertical distance is set to be not more than 100 mm, so that the overlarge vertical distance is avoided, the full screen of the surface light source illuminated reflective display screen is guaranteed, and the active reflective display module is prevented from being too thick.

Furthermore, each reflector is a funnel body, the bottom of the funnel body is fixedly connected with the reflective substrate, the top of the funnel body is provided with the light outlet, the light overflow angle in the light outlet is provided with a first acute angle, the plane where the light outlet is located is perpendicular to the central axis of the funnel body, and a second acute angle is provided between the central axis of the funnel body and the light-transmitting surface.

The beneficial effects of the further scheme are as follows: compare and be greater than 90 degrees in this excessive light angle, make the light-emitting mouth have less light-emitting scope through first acute angle, promoted the reflection of light ability of reflector, ensure through the second acute angle that the area source illuminates the full-screen of reflective display screen.

Furthermore, the bottom of the funnel body is provided with two clamping feet which are symmetrically distributed along the central axis, and the two clamping feet are respectively clamped on the reflective substrate.

The beneficial effects of the further scheme are as follows: the reflector that will correspond through two screens feet is detachable fixes on reflecting substrate, has simplified the fixed knot structure between reflector and the reflector, makes things convenient for dismouting reflector.

Further, the first acute angle is greater than or equal to 10 degrees, and the first acute angle is less than or equal to 60 degrees, and the second acute angle is less than or equal to 30 degrees.

The beneficial effects of the further scheme are as follows: the first acute angle is arranged at 10 degrees to 60 degrees, the compactness of the arrangement of the plurality of reflectors on the reflecting substrate is enhanced, the uniformity of the light emitting of the reflectors and the surface light source is favorably reduced, and the second acute angle is arranged at no more than 30 degrees, so that the surface light source is ensured to uniformly illuminate the whole screen of the reflective display screen.

Further, the active reflection type display module further includes a flat plate, the backlight surface is fixed to the front surface of the flat plate in a stacked manner, and the display screen driving circuit board and the surface light source driving circuit board are arranged behind the back surface of the flat plate.

The beneficial effects of the further scheme are as follows: the flat plate supports the reflective display screen behind the backlight surface to prevent the reflective display screen from being worn and deformed, which is helpful for enhancing the display performance of the reflective display screen.

Further, the active reflection type display module further comprises a back shell and a front cover, wherein the front cover is sealed on the opening end of the back shell, the back shell and the front cover enclose a shell with a cavity, and the display screen driving circuit board, the reflection type display screen, the surface light source driving circuit board, the surface light source and the flat plate are arranged in the cavity of the shell; the inner surface of the back shell is fixedly connected with the display screen driving circuit board, the surface light source driving circuit board and the flat plate respectively; the front cover comprises a light-transmitting part and a light-shielding part surrounding the light-transmitting part, the light-transmitting part and the light-transmitting part are distributed in a layered opposite mode, and the back face of the light-shielding part is fixedly connected with the light-reflecting substrate.

The beneficial effects of the further scheme are as follows: the shell body with the cavity, which is formed by the back shell and the front cover, is used for fixing the display screen driving circuit board, the reflective display screen, the surface light source driving circuit board, the surface light source and the flat plate, so that the structure and the assembly process of the active reflection type display module are simplified, light emitting of a light transmission part in front of the light transmission surface is ensured, and light leakage of a shading part is avoided.

Furthermore, the front surface of the flat plate is fixedly connected with the backlight surface in a detachable mode, and the inner surface of the back shell is fixedly connected with the display screen driving circuit board, the surface light source driving circuit board and the flat plate in a detachable mode respectively.

The beneficial effects of the further scheme are as follows: the reflecting display screen is convenient to disassemble and assemble on the flat plate, and the display screen driving circuit board, the surface light source driving circuit board and the flat plate are convenient to disassemble and assemble on the back shell.

Further, the surface light source further comprises a supporting seat, and the supporting seat is fixedly connected with the back surfaces of the light reflecting substrate and the shading part respectively.

The beneficial effects of the further scheme are as follows: an installation space is provided between the back surfaces of the light reflecting substrate and the shading part through the supporting seat, so that the difficulty of fixedly connecting the back surfaces of the light reflecting substrate and the shading part is reduced.

Further, the supporting seat comprises a first fixed wall and a second fixed wall fixedly connected with the first fixed wall, a third acute angle is arranged between the second fixed wall and the first fixed wall, the first fixed wall is detachably and fixedly connected with the reflective substrate, and the second fixed wall is detachably and fixedly connected with the back face of the shading portion.

The beneficial effects of the further scheme are as follows: the back of the shading part is detachably and fixedly connected with the reflecting substrate through the supporting seat, the difficulty of fixedly connecting the back of the shading part with the reflecting substrate is reduced, and the surface light source is conveniently assembled and disassembled on the front cover.

Drawings

Fig. 1 is an exploded view of an active reflection type display module according to an embodiment;

FIG. 2 is a schematic top view of the reflective display panel and a surface light source of FIG. 1;

FIG. 3 is a schematic cross-sectional view of the active reflection type display module shown in FIG. 1;

fig. 4 is a schematic front view of the surface light source corresponding to fig. 2;

fig. 5 is a schematic cross-sectional view of the surface light source corresponding to fig. 4;

fig. 6 is a schematic bottom view of a reflector corresponding to the surface light source of fig. 4;

fig. 7 is an exploded view of an active reflection type display module according to a second embodiment;

fig. 8 is an exploded view of an active reflection type display module according to a third embodiment;

FIG. 9 is a schematic top view of the reflective display panel and two surface light sources corresponding to FIG. 8;

FIG. 10 is a schematic cross-sectional view of the active reflection type display module corresponding to FIG. 8;

fig. 11 is a schematic perspective view of a support seat on a surface light source according to the third embodiment;

fig. 12 is a schematic front view of a reflective display panel and two surface light sources according to a fourth embodiment;

fig. 13 is a schematic front view of a reflective display panel and four surface light sources according to the fifth embodiment.

In the drawings, the components represented by the respective reference numerals are listed below:

the LED display screen comprises a display screen driving circuit board 1, a display screen 2, a surface light source driving circuit board 3, a surface light source 4, a surface light source 5, a flat plate 6, a back shell 7, a front cover 21, a backlight surface 22, a light transmission surface 41, a light reflection substrate 42-L ED lamp beads, a light reflection cover 43, a support seat 44, a light transmission part 71, a shading part 72, a clamping pin 431, a first fixing wall 441 and a second fixing wall 442.

Detailed Description

The principles and features of the present invention are described below in conjunction with the following drawings, the illustrated embodiments are provided to illustrate the present invention and not to limit the scope of the present invention, and the same reference numerals are used to identify the same components.

Example one

Referring to fig. 1, the active reflection type display module includes a display screen driving circuit board 1, a reflection type display screen 2, a surface light source driving circuit board 3 and a surface light source 4, the display screen driving circuit board 1 is electrically connected to the reflection type display screen 2, the reflection type display screen 2 provides a display function under the driving of the display screen driving circuit board 1, along the thickness direction of the reflection type display screen 2, the display screen driving circuit board 1 and the surface light source driving circuit board 3 are both disposed behind the reflection type display screen 2, so that the reflection type display screen 2, the display screen driving circuit board 1 and the surface light source driving circuit board 3 are distributed in a layered arrangement, compared with the reflection type display screen 2 and the display screen driving circuit board 1 or/and the surface light source driving circuit board 3 are distributed in a partitioned arrangement, the width or the length of the active reflection type display module is reduced, and the active reflection.

Referring to fig. 1 and 2, one surface light source 4 is disposed in front of the reflective display panel 2, and the reflective display panel 2 may be an electronic ink panel or a reflective L CD panel, as compared to the surface light source 4 disposed in front of the reflective display panel 2 to prevent the surface light source 4 from shielding the reflective display panel 2.

It should be noted that the specific structure of the display driving circuit board 1, the specific structure of the reflective display screen 2, and the specific structure of the display driving circuit board 1 electrically connected to the reflective display screen 2 are all prior art, and are not described herein again.

Referring to fig. 1 to 3, the reflective display screen 2 includes a backlight surface 21 and a light-transmitting surface 22 that are layered, the light-transmitting surface 22 is located in front of the backlight surface 21, the display screen driving circuit board 1 and the surface light source driving circuit board 3 are both disposed behind the backlight surface 21, and the surface light source 4 is disposed in front of the light-transmitting surface 22, so as to prevent the display screen driving circuit board 1, the surface light source driving circuit board 3 and the surface light source 4 from shielding the light-transmitting surface 22, and facilitate the light-transmitting surface 22 to be fully irradiated by the surface light source 4.

Taking the electronic ink screen as an example, the electronic ink screen includes a glass plate, an electronic ink layer and a light-shielding substrate, the electronic ink layer is disposed between the glass plate and the light-shielding substrate, one surface of the glass plate away from the electronic ink layer is a light-transmitting surface 22, so that the light-transmitting surface 22 has light-incident and light-emitting functions, and one surface of the light-shielding substrate away from the electronic ink layer is a backlight surface 21, so that the backlight surface 21 has light-reflecting or light-absorbing functions.

Referring to fig. 3 and 4, the surface light source 4 includes a light reflecting substrate 41, a plurality of L ED lamp beads 42 and a plurality of reflectors 43, a plurality of L ED lamp beads 42 are fixed on the light reflecting substrate 41 at intervals, each L ED lamp bead 42 is located inside the corresponding reflector 43 respectively, a plurality of reflectors 43 are fixed on the light reflecting substrate 41 side by side, it is ensured that a plurality of reflectors 43 are uniformly arranged and distributed on the light reflecting substrate 41, each reflector 43 is provided with a light outlet, the light outlet faces the light transmitting surface 22, a light reflecting chamber formed by each reflector 43 and the light reflecting substrate 41 is used for hiding the corresponding L ED lamp beads 42, it is avoided that each L ED 42 lamp bead is exposed on the light reflecting substrate 41, L ED lamp beads 42 are reduced, and the utilization rate of the light reflecting substrate 41 is improved.

Specifically, the reflective substrate 41 may be a PCB board coated with a reflective material, the reflective cover 43 may be a metal cover coated with a reflective material, and the reflective material may be paint or reflective tape.

The L ED lamp pearls 42 are electrically connected with the surface light source driving circuit board 3, each L ED lamp pearl 42 emits light beams under the driving of the surface light source driving circuit board 3, part of light in the light beams is changed in direction by the corresponding reflection cavity, the light with the changed direction is emitted to the light transmission surface 22 from the light outlet, compared with the situation that each L ED lamp pearl 42 is exposed on the reflection substrate 41, the light emitting range of the light beams is reduced through the reflection cavity, the light which plays a role of illuminating the reflective display screen 2 in the light beams is increased, the light which is lost in the light beams is reduced, the defects that the reflective display screen 2 is illuminated by less light in the light beams emitted by each L ED lamp pearl 42 and more light is lost in the existing active reflection type display module are overcome, and the light emitting efficiency of each L ED lamp pearl 42 and the display performance of the reflective display screen 2 are improved.

The plurality of reflectors 43 which are uniformly distributed on the reflective substrate 41 in an array manner enable the surface light source to uniformly emit light, and the display screen driving circuit board 1, the surface light source driving circuit board 3 and the surface light source 4 do not shield the light-transmitting surface 22, so that the surface light source 4 is ensured to uniformly illuminate the full screen of the reflective display screen 2.

It should be noted that, the specific structure of the surface light source driving circuit board 3, the specific structure of each L ED lamp bead 42, and the specific structure of the plurality of L ED lamp beads 42 electrically connected to the surface light source driving circuit board 3 all belong to the prior art, and are not described herein again.

Referring to fig. 3, a vertical distance D along a direction perpendicular to the light-transmitting surface 22 is reserved between each L ED lamp bead 42 and the light-transmitting surface 22, where the vertical distance D is less than or equal to 100 mm, and the vertical distance D may be a thickness from the center of each L ED lamp bead 42 to a horizontal plane where the light-transmitting surface 22 is located along a thickness direction of the reflective display screen 2, for example, the vertical distance D is equal to 0 mm, or 60 mm, or 100 mm, so as to avoid the vertical distance D from being too large, and provide a guarantee for the surface light source 4 to illuminate the full screen of the reflective display screen 2, so as to prevent the active reflective display module from being too thick.

Referring to fig. 3, 4 and 5, each of the light reflecting covers 43 is a funnel body, the funnel body is a trapezoid structure extending from a bottom to a top along a central axis, the trapezoid structure may be a quadrangular prism structure or a cylindrical structure, the bottom of the funnel body is fixedly connected with the light reflecting substrate 41, the bottom of the funnel body is provided with a receiving opening, a corresponding L ED lamp bead 42 is arranged in the receiving opening, the top of the funnel body is provided with a light outlet, and the light outlet is larger than the receiving opening.

Referring to fig. 3, 4 and 5, the light-spilling angle in the light-exiting port is set to be a first acute angle α, and compared with the light-spilling angle in the light-exiting port being greater than 90 degrees, the light-exiting port has a smaller light-exiting range through the first acute angle α, so that the light-reflecting capability of the reflector 43 is improved, the plane where the light-exiting port is located is perpendicular to the central axis of the funnel, a second acute angle β is provided between the central axis of the funnel and the light-transmitting surface 22, and the full screen of the reflective display 2 is illuminated by the surface light source 4 through the second acute angle β.

Referring to fig. 3, a central axis of the funnel body is shown by a dashed oblique line, two rays emitted from the light outlet are respectively shown by rays with arrows, the two rays are distributed on two sides of the dashed oblique line, an included angle between the two rays is used as an example of a light overflow angle in the light outlet, one ray is parallel to a first side edge on the funnel body, the other ray is parallel to a second side edge on the funnel body, and the light overflow angle in the light outlet can be used as another example of an included angle between a straight line where the first side edge is located and a straight line where the second side edge is located.

Referring to fig. 4 and 5, the bottom of the funnel body is provided with two clamping feet 431 which are symmetrically distributed along the central axis, the two clamping feet 431 are respectively clamped on the reflective substrate 41, and the corresponding reflective shade 43 is detachably fixed on the reflective substrate 41 through the two clamping feet 431, so that the fixing structure between the reflective shade 43 and the reflective shade 43 is simplified, and the reflective shade 43 is convenient to disassemble and assemble.

The first acute angle α is greater than or equal to 10 degrees, and the first acute angle α is less than or equal to 60 degrees, for example, the first acute angle α is equal to 10 degrees, 35 degrees or 60 degrees, which enhances the compactness of the arrangement of the plurality of reflectors 43 on the reflective substrate 41, and is beneficial to reducing the uniformity of the light emitted from the reflectors 43 and the area light source 4.

The second acute angle β is less than or equal to 30 degrees, for example, the second acute angle β is equal to 5 degrees, or 20 degrees, or 30 degrees, which ensures the area light source 4 uniformly illuminates the full screen of the reflective display.

Example two

Referring to fig. 4 to 7, the active reflection type display module further includes a flat plate 5, a backlight surface 21 is laminated and fixed on a front surface of the flat plate 5, and a display panel driving circuit board 1 and a surface light source driving circuit board 3 are disposed behind a back surface of the flat plate 5.

The one side relative with shady face 21 on dull and stereotyped 5 is preceding, and the one side of keeping away from shady face 21 on dull and stereotyped 5 is the back, and shady face 21 can glue in dull and stereotyped 5 preceding, makes dull and stereotyped 5 support reflective display screen 2 in shady face 21 rear to prevent reflective display screen 2 and suffer wearing and tearing and deformation, help strengthening reflective display screen 2's display performance.

EXAMPLE III

Referring to fig. 4 to 6 and 8 to 10, the active reflection type display module further includes a back case 6 and a front cover 7, the back case 6 is integrally recessed, the front cover 7 covers the opening end of the back case 6, the back case 6 and the front cover 7 enclose a housing having a cavity, a display screen driving circuit board 1, a reflective display screen 2, a surface light source driving circuit board 3, a surface light source 4 and a flat plate 5 are disposed in the cavity of the housing, and an inner surface of the back case 6 is fixedly connected to the display screen driving circuit board 1, the surface light source driving circuit board 3 and the flat plate 5, for example: the display screen driving circuit board 1 and the surface light source driving circuit board 3 are arranged on the inner surface of the back shell 6 in a partition mode and are arranged on the inner surface of the back shell 6 in a layered mode with the flat plate 5, the structure and the assembly process of the active reflection type display module are simplified, and the cavity of the shell is favorably and fully utilized.

Referring to fig. 8 and 10, the front cover 7 includes a light-transmitting portion 71 and a light-shielding portion 72 surrounding the light-transmitting portion 71, the light-shielding portion 72 may be a hollow light-reflecting frame, the light-transmitting portion 71 is a transparent glass plate embedded in a vacant area of the light-reflecting frame, the light-transmitting portion 71 and the light-transmitting surface 22 are distributed in a layered manner, an area of the light-transmitting surface 22 does not exceed an area of the light-transmitting portion 71, so that the light-transmitting portion 71 is disposed right in front of the light-transmitting surface 22, and a back surface of the light-shielding portion 72 is fixedly connected to the light-reflecting substrate 41, thereby ensuring light leakage from the light-transmitting portion 71 located right in front of.

The front face of the plate 5 is detachably and fixedly connected with the backlight face 21, for example: the four corners of the backlight surface 21 are fixed on the backlight surface 21 through buckles respectively, so that the reflective display screen 2 is conveniently disassembled and assembled on the flat plate 5.

Keep away from the one side of dull and stereotyped 5 on the backshell 6 and be the surface, the one side relative with dull and stereotyped 5 on the backshell 6 is the internal surface, the internal surface of backshell 6 respectively with display screen drive circuit board 1, area light source drive circuit board 3 and dull and stereotyped 5 detachable fixed connection, for example: display screen drive circuit board 1 and surface light source drive circuit board 3 pass through the fix with screw respectively on the internal surface of dorsal scale 6, and the four corners of flat board 5 passes through the fix with screw respectively on the internal surface of dorsal scale 6, and the convenience is at dorsal scale 6 on dismouting display screen drive circuit board 1, area source drive circuit board 3 and flat board 5.

Referring to fig. 8 and 9, the active reflection type display module may be provided with two surface light sources 4, the two surface light sources 4 are distributed in front of the left side and the right side of the light transmission surface 22 along the width direction of the reflection type display screen 2, and compared with one surface light source 4, the two surface light sources 4 have the performance of illuminating the reflection type display screen 2 more strongly, which is beneficial to enhancing the display performance of the reflection type display screen 2.

Referring to fig. 8 to 10, each surface light source 4 further includes a support base 44, and the support base 44 is fixedly connected to the back surfaces of the light reflecting substrate 41 and the light shielding portion 72, for example, the support base 44 is an L-type rectangular frame or a triangular prism, and an installation space is provided between the back surfaces of the light reflecting substrate 41 and the light shielding portion 72 through the support base 44, so as to reduce difficulty in fixedly connecting the back surfaces of the light reflecting substrate 41 and the light shielding portion 72.

Referring to fig. 10 and 11, the support base 44 includes a first fixing wall 441 and a second fixing wall 442 fixedly connected to the first fixing wall 441, a third acute angle θ is disposed between the second fixing wall 442 and the first fixing wall 441, a sum of the third acute angle θ and the second acute angle β is equal to 90 degrees, the first fixing wall 441 is detachably and fixedly connected to the reflective substrate 41, and the second fixing wall 442 is detachably and fixedly connected to the back surface of the light shielding portion 72.

Specifically, the reflective substrate 41 may be obliquely fixed on the first fixing wall 441 by a screw or a buckle or an adhesive, the second fixing wall 442 may be horizontally fixed on the back surface of the light shielding portion 72 by a screw or a buckle or an adhesive, and the supporting seat 44 is used to detachably and fixedly connect the reflective substrate 41 and the back surface of the light shielding portion 72, so that the difficulty of fixedly connecting the back surface of the light shielding portion 72 and the reflective substrate 41 is reduced, and the surface light source 4 is conveniently detached and installed on the front cover 7.

Example four

Referring to fig. 1 and 12, the two surface light sources 4 are distributed in front of the upper side and the lower side of the light-transmitting surface 22 along the length direction of the reflective display 2, and compared with one surface light source 4, the two surface light sources 4 have the performance of illuminating the reflective display 2 more strongly, which is beneficial to enhancing the display performance of the reflective display 2.

EXAMPLE five

Referring to fig. 1 and 13, the active reflection type display module may be provided with four surface light sources 4, two surface light sources 4 are distributed in front of the left side and the right side of the light transmission surface 22 along the width direction of the reflective display panel 2, and the other two surface light sources 4 are distributed in front of the upper side and the lower side of the light transmission surface 22 along the length direction of the reflective display panel 2, so that the four surface light sources 4 have a performance of illuminating the reflective display panel 2 more strongly than the two surface light sources 4, which is helpful for enhancing the display performance of the reflective display panel 2.

It should be noted that the second embodiment, the third embodiment, the fourth embodiment and the fifth embodiment are respectively provided with the configurations between the display screen driving circuit board 1, the reflective display screen 2, the surface light source driving circuit board 3 and the surface light source 4, which are described in the first embodiment, and for brief description, the second embodiment, the third embodiment, the fourth embodiment and the fifth embodiment are not repeated, and the schematic expression of the above terms does not necessarily refer to the same embodiments or examples, and the described components, component configurations and relationships between different components may be combined in an appropriate manner in one or more specific examples or examples, and those skilled in the art may combine and combine features of different embodiments or examples described in this specification without contradiction.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims (10)

1. The utility model provides an active reflection type display module assembly, active reflection type display module assembly include display screen driver circuit board (1) and with reflective display screen (2) that display screen driver circuit board (1) electricity is connected, reflective display screen (2) are including being backlight face (21) and printing opacity face (22) of layering distribution, display screen driver circuit board (1) is located backlight face (21) rear, its characterized in that, active reflection type display module assembly is still including being located surface light source driver circuit board (3) at backlight face (21) rear and being located surface light source (4) of printing opacity face (22) side the place ahead, surface light source (4) are including reflecting substrate (41), many L ED lamp pearl (42) and a plurality of reflector (43), and many L ED lamp pearl (42) interval is fixed on reflecting substrate (41) and with surface light source driver circuit board (3) electricity is connected, each L ED (42) are located the corresponding inside reflector (43) respectively, and a plurality of reflector (43) are fixed on reflecting substrate (41), the lamp pearl (43) is all set side by side the light outlet (22).

2. The active reflection type display module of claim 1, wherein a vertical distance along a direction perpendicular to the light transmission surface (22) is reserved between each L ED lamp bead (42) and the light transmission surface (22), and the vertical distance is less than or equal to 100 mm.

3. The reflective display module of claim 1, wherein each of the reflective covers (43) is a funnel, a bottom of the funnel is fixedly connected to the reflective substrate (41), a top of the funnel is provided with the light exit, an angle of light spill in the light exit is set to a first acute angle, a plane of the light exit is perpendicular to a central axis of the funnel, and a second acute angle is provided between the central axis of the funnel and the transparent surface (22).

4. The reflective display module of claim 3, wherein the bottom of the funnel is provided with two locking legs (431) symmetrically distributed along the central axis, and the two locking legs (431) are respectively locked to the reflective substrate (41).

5. The active reflection type display module of claim 3, wherein the first acute angle is greater than or equal to 10 degrees, the first acute angle is less than or equal to 60 degrees, and the second acute angle is less than or equal to 30 degrees.

6. The active reflection type display module according to any one of claims 1 to 5, further comprising a flat plate (5), wherein the backlight surface (21) is fixed in a laminated manner on a front surface of the flat plate (5), and the display panel driving circuit board (1) and the surface light source driving circuit board (3) are provided behind a rear surface of the flat plate (5).

7. The active reflection type display module according to claim 6, further comprising a back case (6) and a front cover (7), wherein the front cover (7) covers an opening end of the back case (6), the back case (6) and the front cover (7) enclose a housing having a cavity, and the display panel driving circuit board (1), the reflective display panel (2), the surface light source driving circuit board (3), the surface light source (4) and the flat plate (5) are disposed in the cavity of the housing; the inner surface of the back shell (6) is fixedly connected with the display screen driving circuit board (1), the surface light source driving circuit board (3) and the flat plate (5) respectively; the front cover (7) comprises a light-transmitting part (71) and a light-shielding part (72) surrounding the light-transmitting part (71), the light-transmitting part (71) and the light-transmitting surface (22) are distributed in a layered opposite mode, and the back face of the light-shielding part (72) is fixedly connected with the light-reflecting substrate (41).

8. The active reflection type display module according to claim 7, wherein the front surface of the flat plate (5) is detachably and fixedly connected to the backlight surface (21), and the inner surface of the back case (6) is detachably and fixedly connected to the display screen driving circuit board (1), the surface light source driving circuit board (3) and the flat plate (5), respectively.

9. The active reflection type display module according to claim 7, wherein the surface light source (4) further comprises a support base (44), and the support base (44) is fixedly connected to the back surfaces of the reflective substrate (41) and the light shielding portion (72), respectively.

10. The reflective display module of claim 9, wherein the support base (44) comprises a first fixing wall (441) and a second fixing wall (442) fixedly connected to the first fixing wall (441), wherein a third acute angle is disposed between the second fixing wall (442) and the first fixing wall (441), the first fixing wall (441) is detachably and fixedly connected to the reflective substrate (41), and the second fixing wall (442) is detachably and fixedly connected to the back surface of the light shielding portion (72).

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